diff --git a/.cspell.dict/cpython.txt b/.cspell.dict/cpython.txt new file mode 100644 index 0000000000..d28a4bb8c5 --- /dev/null +++ b/.cspell.dict/cpython.txt @@ -0,0 +1,59 @@ +argtypes +asdl +asname +augassign +badsyntax +basetype +boolop +bxor +cached_tsver +cellarg +cellvar +cellvars +cmpop +denom +dictoffset +elts +excepthandler +fileutils +finalbody +formatfloat +freevar +freevars +fromlist +heaptype +HIGHRES +IMMUTABLETYPE +kwonlyarg +kwonlyargs +lasti +linearise +maxdepth +mult +nkwargs +noraise +numer +orelse +pathconfig +patma +posonlyarg +posonlyargs +prec +preinitialized +PYTHREAD_NAME +SA_ONSTACK +stackdepth +stringlib +structseq +tok_oldval +unaryop +unparse +unparser +VARKEYWORDS +varkwarg +wbits +weakreflist +withitem +withs +xstat +XXPRIME \ No newline at end of file diff --git a/.cspell.dict/python-more.txt b/.cspell.dict/python-more.txt new file mode 100644 index 0000000000..0404428324 --- /dev/null +++ b/.cspell.dict/python-more.txt @@ -0,0 +1,257 @@ +abiflags +abstractmethods +aenter +aexit +aiter +anext +appendleft +argcount +arrayiterator +arraytype +asend +asyncgen +athrow +backslashreplace +baserepl +basicsize +bdfl +bigcharset +bignum +breakpointhook +cformat +chunksize +classcell +closefd +closesocket +codepoint +codepoints +codesize +contextvar +cpython +cratio +dealloc +debugbuild +decompressor +defaultaction +descr +dictcomp +dictitems +dictkeys +dictview +digestmod +dllhandle +docstring +docstrings +dunder +endianness +endpos +eventmask +excepthook +exceptiongroup +exitfuncs +extendleft +fastlocals +fdel +fedcba +fget +fileencoding +fillchar +fillvalue +finallyhandler +firstiter +firstlineno +fnctl +frombytes +fromhex +fromunicode +fset +fspath +fstring +fstrings +ftruncate +genexpr +getattro +getcodesize +getdefaultencoding +getfilesystemencodeerrors +getfilesystemencoding +getformat +getframe +getnewargs +getpip +getrandom +getrecursionlimit +getrefcount +getsizeof +getweakrefcount +getweakrefs +getwindowsversion +gmtoff +groupdict +groupindex +hamt +hostnames +idfunc +idiv +idxs +impls +indexgroup +infj +instancecheck +instanceof +irepeat +isabstractmethod +isbytes +iscased +isfinal +istext +itemiterator +itemsize +iternext +keepends +keyfunc +keyiterator +kwarg +kwargs +kwdefaults +kwonlyargcount +lastgroup +lastindex +linearization +linearize +listcomp +longrange +lvalue +mappingproxy +maskpri +maxdigits +MAXGROUPS +MAXREPEAT +maxsplit +maxunicode +memoryview +memoryviewiterator +metaclass +metaclasses +metatype +mformat +mro +mros +multiarch +namereplace +nanj +nbytes +ncallbacks +ndigits +ndim +nldecoder +nlocals +NOARGS +nonbytes +Nonprintable +origname +ospath +pendingcr +phello +platlibdir +popleft +posixsubprocess +posonly +posonlyargcount +prepending +profilefunc +pycache +pycodecs +pycs +pyexpat +PYTHONBREAKPOINT +PYTHONDEBUG +PYTHONHASHSEED +PYTHONHOME +PYTHONINSPECT +PYTHONOPTIMIZE +PYTHONPATH +PYTHONPATH +PYTHONSAFEPATH +PYTHONVERBOSE +PYTHONWARNDEFAULTENCODING +PYTHONWARNINGS +pytraverse +PYVENV +qualname +quotetabs +radd +rdiv +rdivmod +readall +readbuffer +reconstructor +refcnt +releaselevel +reverseitemiterator +reverseiterator +reversekeyiterator +reversevalueiterator +rfloordiv +rlshift +rmod +rpow +rrshift +rsub +rtruediv +rvalue +scproxy +seennl +setattro +setcomp +setrecursionlimit +showwarnmsg +signum +slotnames +STACKLESS +stacklevel +stacksize +startpos +subclassable +subclasscheck +subclasshook +suboffset +suboffsets +SUBPATTERN +sumprod +surrogateescape +surrogatepass +sysconf +sysconfigdata +sysvars +teedata +thisclass +titlecased +tkapp +tobytes +tolist +toreadonly +TPFLAGS +tracefunc +unimportable +unionable +unraisablehook +unsliceable +urandom +valueiterator +vararg +varargs +varnames +warningregistry +warnmsg +warnoptions +warnopts +weaklist +weakproxy +weakrefs +winver +withdata +xmlcharrefreplace +xoptions +xopts +yieldfrom diff --git a/.cspell.dict/rust-more.txt b/.cspell.dict/rust-more.txt new file mode 100644 index 0000000000..6a98daa9db --- /dev/null +++ b/.cspell.dict/rust-more.txt @@ -0,0 +1,82 @@ +ahash +arrayvec +bidi +biguint +bindgen +bitflags +bitor +bstr +byteorder +byteset +caseless +chrono +consts +cranelift +cstring +datelike +deserializer +fdiv +flamescope +flate2 +fract +getres +hasher +hexf +hexversion +idents +illumos +indexmap +insta +keccak +lalrpop +lexopt +libc +libloading +libz +longlong +Manually +maplit +memmap +memmem +metas +modpow +msvc +muldiv +nanos +nonoverlapping +objclass +peekable +powc +powf +powi +prepended +punct +replacen +rmatch +rposition +rsplitn +rustc +rustfmt +rustyline +seedable +seekfrom +siphash +siphasher +splitn +subsec +thiserror +timelike +timsort +trai +ulonglong +unic +unistd +unraw +unsync +wasip1 +wasip2 +wasmbind +wasmtime +widestring +winapi +winsock diff --git a/.cspell.json b/.cspell.json index e2723d6ce5..98a03180fe 100644 --- a/.cspell.json +++ b/.cspell.json @@ -1,210 +1,81 @@ // See: https://github.com/streetsidesoftware/cspell/tree/master/packages/cspell { "version": "0.2", + "import": [ + "@cspell/dict-en_us/cspell-ext.json", + // "@cspell/dict-cpp/cspell-ext.json", + "@cspell/dict-python/cspell-ext.json", + "@cspell/dict-rust/cspell-ext.json", + "@cspell/dict-win32/cspell-ext.json", + "@cspell/dict-shell/cspell-ext.json", + ], // language - current active spelling language "language": "en", // dictionaries - list of the names of the dictionaries to use "dictionaries": [ + "cpython", // Sometimes keeping same terms with cpython is easy + "python-more", // Python API terms not listed in python + "rust-more", // Rust API terms not listed in rust "en_US", "softwareTerms", "c", "cpp", "python", - "python-custom", "rust", - "unix", - "posix", - "winapi" + "shell", + "win32" ], // dictionaryDefinitions - this list defines any custom dictionaries to use - "dictionaryDefinitions": [], + "dictionaryDefinitions": [ + { + "name": "cpython", + "path": "./.cspell.dict/cpython.txt" + }, + { + "name": "python-more", + "path": "./.cspell.dict/python-more.txt" + }, + { + "name": "rust-more", + "path": "./.cspell.dict/rust-more.txt" + } + ], "ignorePaths": [ "**/__pycache__/**", "Lib/**" ], // words - list of words to be always considered correct "words": [ - // Rust - "ahash", - "bidi", - "biguint", - "bindgen", - "bitflags", - "bstr", - "byteorder", - "chrono", - "consts", - "cstring", - "flate2", - "fract", - "hasher", - "idents", - "indexmap", - "insta", - "keccak", - "lalrpop", - "libc", - "libz", - "longlong", - "Manually", - "maplit", - "memmap", - "metas", - "modpow", - "nanos", - "objclass", - "peekable", - "powc", - "powf", - "prepended", - "punct", - "replacen", - "rsplitn", - "rustc", - "rustfmt", - "seekfrom", - "splitn", - "subsec", - "timsort", - "trai", - "ulonglong", - "unic", - "unistd", - "winapi", - "winsock", - // Python - "abstractmethods", - "aiter", - "anext", - "arrayiterator", - "arraytype", - "asend", - "athrow", - "basicsize", - "cformat", - "classcell", - "closesocket", - "codepoint", - "codepoints", - "cpython", - "decompressor", - "defaultaction", - "descr", - "dictcomp", - "dictitems", - "dictkeys", - "dictview", - "docstring", - "docstrings", - "dunder", - "eventmask", - "fdel", - "fget", - "fileencoding", - "fillchar", - "finallyhandler", - "frombytes", - "fromhex", - "fromunicode", - "fset", - "fspath", - "fstring", - "fstrings", - "genexpr", - "getattro", - "getformat", - "getnewargs", - "getweakrefcount", - "getweakrefs", - "hostnames", - "idiv", - "impls", - "infj", - "instancecheck", - "instanceof", - "isabstractmethod", - "itemiterator", - "itemsize", - "iternext", - "keyiterator", - "kwarg", - "kwargs", - "linearization", - "linearize", - "listcomp", - "mappingproxy", - "maxsplit", - "memoryview", - "memoryviewiterator", - "metaclass", - "metaclasses", - "metatype", - "mro", - "mros", - "nanj", - "ndigits", - "ndim", - "nonbytes", - "origname", - "posixsubprocess", - "pyexpat", - "PYTHONDEBUG", - "PYTHONHOME", - "PYTHONINSPECT", - "PYTHONOPTIMIZE", - "PYTHONPATH", - "PYTHONPATH", - "PYTHONVERBOSE", - "PYTHONWARNINGS", - "qualname", - "radd", - "rdiv", - "rdivmod", - "reconstructor", - "reversevalueiterator", - "rfloordiv", - "rlshift", - "rmod", - "rpow", - "rrshift", - "rsub", - "rtruediv", - "scproxy", - "setattro", - "setcomp", - "showwarnmsg", - "warnmsg", - "stacklevel", - "subclasscheck", - "subclasshook", - "unionable", - "unraisablehook", - "valueiterator", - "vararg", - "varargs", - "varnames", - "warningregistry", - "warnopts", - "weakproxy", - "xopts", - // RustPython + "RUSTPYTHONPATH", + // RustPython terms + "aiterable", + "alnum", "baseclass", + "boxvec", "Bytecode", "cfgs", "codegen", + "coro", "dedentations", "dedents", "deduped", "downcasted", "dumpable", + "emscripten", + "excs", + "finalizer", "GetSet", + "groupref", "internable", + "lossily", "makeunicodedata", "miri", "notrace", + "openat", "pyarg", "pyarg", "pyargs", + "pyast", "PyAttr", "pyc", "PyClass", @@ -213,6 +84,7 @@ "PyFunction", "pygetset", "pyimpl", + "pylib", "pymember", "PyMethod", "PyModule", @@ -225,6 +97,7 @@ "PyResult", "pyslot", "PyStaticMethod", + "pystone", "pystr", "pystruct", "pystructseq", @@ -232,57 +105,31 @@ "reducelib", "richcompare", "RustPython", + "significand", "struc", + "summands", // plural of summand + "sysmodule", "tracebacks", "typealiases", - "Unconstructible", + "unconstructible", "unhashable", "uninit", "unraisable", + "unresizable", "wasi", "zelf", - // cpython - "argtypes", - "asdl", - "asname", - "augassign", - "badsyntax", - "basetype", - "boolop", - "bxor", - "cellarg", - "cellvar", - "cellvars", - "cmpop", - "dictoffset", - "elts", - "excepthandler", - "finalbody", - "freevar", - "freevars", - "fromlist", - "heaptype", - "IMMUTABLETYPE", - "kwonlyarg", - "kwonlyargs", - "linearise", - "maxdepth", - "mult", - "nkwargs", - "orelse", - "patma", - "posonlyarg", - "posonlyargs", - "prec", - "stackdepth", - "unaryop", - "unparse", - "unparser", - "VARKEYWORDS", - "varkwarg", - "wbits", - "withitem", - "withs" + // unix + "CLOEXEC", + "codeset", + "endgrent", + "gethrvtime", + "getrusage", + "nanosleep", + "sigaction", + "WRLCK", + // win32 + "birthtime", + "IFEXEC", ], // flagWords - list of words to be always considered incorrect "flagWords": [ diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json index d8641749b5..d60eee2130 100644 --- a/.devcontainer/devcontainer.json +++ b/.devcontainer/devcontainer.json @@ -1,6 +1,4 @@ { - "image": "mcr.microsoft.com/devcontainers/universal:2", - "features": { - "ghcr.io/devcontainers/features/rust:1": {} - } -} + "image": "mcr.microsoft.com/devcontainers/base:jammy", + "onCreateCommand": "curl https://sh.rustup.rs -sSf | sh -s -- -y" +} \ No newline at end of file diff --git a/.gitattributes b/.gitattributes index aa993ad110..f54bcd3b72 100644 --- a/.gitattributes +++ b/.gitattributes @@ -1,6 +1,7 @@ Lib/** linguist-vendored -Cargo.lock linguist-generated -merge +Cargo.lock linguist-generated *.snap linguist-generated -merge vm/src/stdlib/ast/gen.rs linguist-generated -merge Lib/*.py text working-tree-encoding=UTF-8 eol=LF **/*.rs text working-tree-encoding=UTF-8 eol=LF +*.pck binary diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md new file mode 100644 index 0000000000..2991e3c626 --- /dev/null +++ b/.github/copilot-instructions.md @@ -0,0 +1,186 @@ +# GitHub Copilot Instructions for RustPython + +This document provides guidelines for working with GitHub Copilot when contributing to the RustPython project. + +## Project Overview + +RustPython is a Python 3 interpreter written in Rust, implementing Python 3.13.0+ compatibility. The project aims to provide: + +- A complete Python-3 environment entirely in Rust (not CPython bindings) +- A clean implementation without compatibility hacks +- Cross-platform support, including WebAssembly compilation +- The ability to embed Python scripting in Rust applications + +## Repository Structure + +- `src/` - Top-level code for the RustPython binary +- `vm/` - The Python virtual machine implementation + - `builtins/` - Python built-in types and functions + - `stdlib/` - Essential standard library modules implemented in Rust, required to run the Python core +- `compiler/` - Python compiler components + - `parser/` - Parser for converting Python source to AST + - `core/` - Bytecode representation in Rust structures + - `codegen/` - AST to bytecode compiler +- `Lib/` - CPython's standard library in Python (copied from CPython) +- `derive/` - Rust macros for RustPython +- `common/` - Common utilities +- `extra_tests/` - Integration tests and snippets +- `stdlib/` - Non-essential Python standard library modules implemented in Rust (useful but not required for core functionality) +- `wasm/` - WebAssembly support +- `jit/` - Experimental JIT compiler implementation +- `pylib/` - Python standard library packaging (do not modify this directory directly - its contents are generated automatically) + +## Important Development Notes + +### Running Python Code + +When testing Python code, always use RustPython instead of the standard `python` command: + +```bash +# Use this instead of python script.py +cargo run -- script.py + +# For interactive REPL +cargo run + +# With specific features +cargo run --features ssl + +# Release mode (recommended for better performance) +cargo run --release -- script.py +``` + +### Comparing with CPython + +When you need to compare behavior with CPython or run test suites: + +```bash +# Use python command to explicitly run CPython +python my_test_script.py + +# Run RustPython +cargo run -- my_test_script.py +``` + +### Working with the Lib Directory + +The `Lib/` directory contains Python standard library files copied from the CPython repository. Important notes: + +- These files should be edited very conservatively +- Modifications should be minimal and only to work around RustPython limitations +- Tests in `Lib/test` often use one of the following markers: + - Add a `# TODO: RUSTPYTHON` comment when modifications are made + - `unittest.skip("TODO: RustPython ")` + - `unittest.expectedFailure` with `# TODO: RUSTPYTHON ` comment + +### Testing + +```bash +# Run Rust unit tests +cargo test --workspace --exclude rustpython_wasm + +# Run Python snippets tests +cd extra_tests +pytest -v + +# Run the Python test module +cargo run --release -- -m test +``` + +### Determining What to Implement + +Run `./whats_left.py` to get a list of unimplemented methods, which is helpful when looking for contribution opportunities. + +## Coding Guidelines + +### Rust Code + +- Follow the default rustfmt code style (`cargo fmt` to format) +- Use clippy to lint code (`cargo clippy`) +- Follow Rust best practices for error handling and memory management +- Use the macro system (`pyclass`, `pymodule`, `pyfunction`, etc.) when implementing Python functionality in Rust + +### Python Code + +- Follow PEP 8 style for custom Python code +- Use ruff for linting Python code +- Minimize modifications to CPython standard library files + +## Integration Between Rust and Python + +The project provides several mechanisms for integration: + +- `pymodule` macro for creating Python modules in Rust +- `pyclass` macro for implementing Python classes in Rust +- `pyfunction` macro for exposing Rust functions to Python +- `PyObjectRef` and other types for working with Python objects in Rust + +## Common Patterns + +### Implementing a Python Module in Rust + +```rust +#[pymodule] +mod mymodule { + use rustpython_vm::prelude::*; + + #[pyfunction] + fn my_function(value: i32) -> i32 { + value * 2 + } + + #[pyattr] + #[pyclass(name = "MyClass")] + #[derive(Debug, PyPayload)] + struct MyClass { + value: usize, + } + + #[pyclass] + impl MyClass { + #[pymethod] + fn get_value(&self) -> usize { + self.value + } + } +} +``` + +### Adding a Python Module to the Interpreter + +```rust +vm.add_native_module( + "my_module_name".to_owned(), + Box::new(my_module::make_module), +); +``` + +## Building for Different Targets + +### WebAssembly + +```bash +# Build for WASM +cargo build --target wasm32-wasip1 --no-default-features --features freeze-stdlib,stdlib --release +``` + +### JIT Support + +```bash +# Enable JIT support +cargo run --features jit +``` + +### SSL Support + +```bash +# Enable SSL support +cargo run --features ssl +``` + +## Documentation + +- Check the [architecture document](architecture/architecture.md) for a high-level overview +- Read the [development guide](DEVELOPMENT.md) for detailed setup instructions +- Generate documentation with `cargo doc --no-deps --all` +- Online documentation is available at [docs.rs/rustpython](https://docs.rs/rustpython/) \ No newline at end of file diff --git a/.github/dependabot.yml b/.github/dependabot.yml new file mode 100644 index 0000000000..be006de9a1 --- /dev/null +++ b/.github/dependabot.yml @@ -0,0 +1,13 @@ +# Keep GitHub Actions up to date with GitHub's Dependabot... +# https://docs.github.com/en/code-security/dependabot/working-with-dependabot/keeping-your-actions-up-to-date-with-dependabot +# https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file#package-ecosystem +version: 2 +updates: + - package-ecosystem: github-actions + directory: / + groups: + github-actions: + patterns: + - "*" # Group all Actions updates into a single larger pull request + schedule: + interval: weekly diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml index e05f3efd6f..487cb3e0c9 100644 --- a/.github/workflows/ci.yaml +++ b/.github/workflows/ci.yaml @@ -4,6 +4,7 @@ on: pull_request: types: [unlabeled, opened, synchronize, reopened] merge_group: + workflow_dispatch: name: CI @@ -15,14 +16,19 @@ concurrency: cancel-in-progress: true env: - CARGO_ARGS: --no-default-features --features stdlib,zlib,importlib,encodings,sqlite,ssl + CARGO_ARGS: --no-default-features --features stdlib,importlib,stdio,encodings,sqlite,ssl # Skip additional tests on Windows. They are checked on Linux and MacOS. + # test_glob: many failing tests + # test_io: many failing tests + # test_os: many failing tests + # test_pathlib: support.rmtree() failing + # test_posixpath: OSError: (22, 'The filename, directory name, or volume label syntax is incorrect. (os error 123)') + # test_venv: couple of failing tests WINDOWS_SKIPS: >- - test_datetime test_glob - test_importlib test_io test_os + test_rlcompleter test_pathlib test_posixpath test_venv @@ -34,7 +40,7 @@ env: # PLATFORM_INDEPENDENT_TESTS are tests that do not depend on the underlying OS. They are currently # only run on Linux to speed up the CI. PLATFORM_INDEPENDENT_TESTS: >- - test_argparse + test__colorize test_array test_asyncgen test_binop @@ -59,7 +65,6 @@ env: test_dis test_enumerate test_exception_variations - test_exceptions test_float test_format test_fractions @@ -100,12 +105,11 @@ env: test_tuple test_types test_unary - test_unicode test_unpack test_weakref test_yield_from # Python version targeted by the CI. - PYTHON_VERSION: "3.12.3" + PYTHON_VERSION: "3.13.1" jobs: rust_tests: @@ -119,7 +123,7 @@ jobs: os: [macos-latest, ubuntu-latest, windows-latest] fail-fast: false steps: - - uses: actions/checkout@v3 + - uses: actions/checkout@v4 - uses: dtolnay/rust-toolchain@stable with: components: clippy @@ -128,6 +132,7 @@ jobs: - name: Set up the Windows environment shell: bash run: | + git config --system core.longpaths true cargo install --target-dir=target -v cargo-vcpkg cargo vcpkg -v build if: runner.os == 'Windows' @@ -136,7 +141,7 @@ jobs: if: runner.os == 'macOS' - name: run clippy - run: cargo clippy ${{ env.CARGO_ARGS }} --workspace --exclude rustpython_wasm -- -Dwarnings + run: cargo clippy ${{ env.CARGO_ARGS }} --workspace --all-targets --exclude rustpython_wasm -- -Dwarnings - name: run rust tests run: cargo test --workspace --exclude rustpython_wasm --verbose --features threading ${{ env.CARGO_ARGS }} @@ -176,7 +181,7 @@ jobs: name: Ensure compilation on various targets runs-on: ubuntu-latest steps: - - uses: actions/checkout@v3 + - uses: actions/checkout@v4 - uses: dtolnay/rust-toolchain@stable with: target: i686-unknown-linux-gnu @@ -229,6 +234,7 @@ jobs: uses: coolreader18/redoxer-action@v1 with: command: check + args: --ignore-rust-version snippets_cpython: if: ${{ !contains(github.event.pull_request.labels.*.name, 'skip:ci') }} @@ -241,15 +247,16 @@ jobs: os: [macos-latest, ubuntu-latest, windows-latest] fail-fast: false steps: - - uses: actions/checkout@v3 + - uses: actions/checkout@v4 - uses: dtolnay/rust-toolchain@stable - uses: Swatinem/rust-cache@v2 - - uses: actions/setup-python@v4 + - uses: actions/setup-python@v5 with: python-version: ${{ env.PYTHON_VERSION }} - name: Set up the Windows environment shell: bash run: | + git config --system core.longpaths true cargo install cargo-vcpkg cargo vcpkg build if: runner.os == 'Windows' @@ -262,7 +269,7 @@ jobs: - name: build rustpython run: cargo build --release --verbose --features=threading ${{ env.CARGO_ARGS }},jit if: runner.os != 'macOS' - - uses: actions/setup-python@v4 + - uses: actions/setup-python@v5 with: python-version: ${{ env.PYTHON_VERSION }} - name: run snippets @@ -305,7 +312,7 @@ jobs: name: Check Rust code with rustfmt and clippy runs-on: ubuntu-latest steps: - - uses: actions/checkout@v3 + - uses: actions/checkout@v4 - uses: dtolnay/rust-toolchain@stable with: components: rustfmt, clippy @@ -313,25 +320,37 @@ jobs: run: cargo fmt --check - name: run clippy on wasm run: cargo clippy --manifest-path=wasm/lib/Cargo.toml -- -Dwarnings - - uses: actions/setup-python@v4 + - uses: actions/setup-python@v5 with: python-version: ${{ env.PYTHON_VERSION }} - name: install ruff - run: python -m pip install ruff==0.0.291 # astral-sh/ruff#7778 - - name: run python lint - run: ruff extra_tests wasm examples --exclude='./.*',./Lib,./vm/Lib,./benches/ --select=E9,F63,F7,F82 --show-source + run: python -m pip install ruff==0.11.8 + - name: Ensure docs generate no warnings + run: cargo doc + - name: run ruff check + run: ruff check --diff + - name: run ruff format + run: ruff format --check - name: install prettier run: yarn global add prettier && echo "$(yarn global bin)" >>$GITHUB_PATH - name: check wasm code with prettier # prettier doesn't handle ignore files very well: https://github.com/prettier/prettier/issues/8506 run: cd wasm && git ls-files -z | xargs -0 prettier --check -u + # Keep cspell check as the last step. This is optional test. + - name: install extra dictionaries + run: npm install @cspell/dict-en_us @cspell/dict-cpp @cspell/dict-python @cspell/dict-rust @cspell/dict-win32 @cspell/dict-shell + - name: spell checker + uses: streetsidesoftware/cspell-action@v7 + with: + files: '**/*.rs' + incremental_files_only: true miri: if: ${{ !contains(github.event.pull_request.labels.*.name, 'skip:ci') }} name: Run tests under miri runs-on: ubuntu-latest steps: - - uses: actions/checkout@v3 + - uses: actions/checkout@v4 - uses: dtolnay/rust-toolchain@master with: toolchain: nightly @@ -348,7 +367,7 @@ jobs: name: Check the WASM package and demo runs-on: ubuntu-latest steps: - - uses: actions/checkout@v3 + - uses: actions/checkout@v4 - uses: dtolnay/rust-toolchain@stable - uses: Swatinem/rust-cache@v2 @@ -356,15 +375,18 @@ jobs: run: curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh - name: install geckodriver run: | - wget https://github.com/mozilla/geckodriver/releases/download/v0.34.0/geckodriver-v0.34.0-linux64.tar.gz + wget https://github.com/mozilla/geckodriver/releases/download/v0.36.0/geckodriver-v0.36.0-linux64.tar.gz mkdir geckodriver - tar -xzf geckodriver-v0.34.0-linux64.tar.gz -C geckodriver - - uses: actions/setup-python@v4 + tar -xzf geckodriver-v0.36.0-linux64.tar.gz -C geckodriver + - uses: actions/setup-python@v5 with: python-version: ${{ env.PYTHON_VERSION }} - run: python -m pip install -r requirements.txt working-directory: ./wasm/tests - - uses: actions/setup-node@v3 + - uses: actions/setup-node@v4 + with: + cache: "npm" + cache-dependency-path: "wasm/demo/package-lock.json" - name: run test run: | export PATH=$PATH:`pwd`/../../geckodriver @@ -373,11 +395,12 @@ jobs: env: NODE_OPTIONS: "--openssl-legacy-provider" working-directory: ./wasm/demo - - uses: mwilliamson/setup-wabt-action@v1 - with: { wabt-version: "1.0.30" } + - uses: mwilliamson/setup-wabt-action@v3 + with: { wabt-version: "1.0.36" } - name: check wasm32-unknown without js run: | - cargo build --release --manifest-path wasm/wasm-unknown-test/Cargo.toml --target wasm32-unknown-unknown --verbose + cd wasm/wasm-unknown-test + cargo build --release --verbose if wasm-objdump -xj Import target/wasm32-unknown-unknown/release/wasm_unknown_test.wasm; then echo "ERROR: wasm32-unknown module expects imports from the host environment" >2 fi @@ -392,7 +415,7 @@ jobs: working-directory: ./wasm/notebook - name: Deploy demo to Github Pages if: success() && github.ref == 'refs/heads/release' - uses: peaceiris/actions-gh-pages@v2 + uses: peaceiris/actions-gh-pages@v4 env: ACTIONS_DEPLOY_KEY: ${{ secrets.ACTIONS_DEMO_DEPLOY_KEY }} PUBLISH_DIR: ./wasm/demo/dist @@ -404,19 +427,19 @@ jobs: name: Run snippets and cpython tests on wasm-wasi runs-on: ubuntu-latest steps: - - uses: actions/checkout@v3 + - uses: actions/checkout@v4 - uses: dtolnay/rust-toolchain@stable with: - target: wasm32-wasi + target: wasm32-wasip1 - uses: Swatinem/rust-cache@v2 - name: Setup Wasmer - uses: wasmerio/setup-wasmer@v2 + uses: wasmerio/setup-wasmer@v3 - name: Install clang run: sudo apt-get update && sudo apt-get install clang -y - name: build rustpython - run: cargo build --release --target wasm32-wasi --features freeze-stdlib,stdlib --verbose + run: cargo build --release --target wasm32-wasip1 --features freeze-stdlib,stdlib --verbose - name: run snippets - run: wasmer run --dir `pwd` target/wasm32-wasi/release/rustpython.wasm -- `pwd`/extra_tests/snippets/stdlib_random.py + run: wasmer run --dir `pwd` target/wasm32-wasip1/release/rustpython.wasm -- `pwd`/extra_tests/snippets/stdlib_random.py - name: run cpython unittest - run: wasmer run --dir `pwd` target/wasm32-wasi/release/rustpython.wasm -- `pwd`/Lib/test/test_int.py + run: wasmer run --dir `pwd` target/wasm32-wasip1/release/rustpython.wasm -- `pwd`/Lib/test/test_int.py diff --git a/.github/workflows/cron-ci.yaml b/.github/workflows/cron-ci.yaml index 9176f232c7..6389fee1cb 100644 --- a/.github/workflows/cron-ci.yaml +++ b/.github/workflows/cron-ci.yaml @@ -2,12 +2,15 @@ on: schedule: - cron: '0 0 * * 6' workflow_dispatch: + push: + paths: + - .github/workflows/cron-ci.yaml name: Periodic checks/tasks env: - CARGO_ARGS: --no-default-features --features stdlib,zlib,importlib,encodings,ssl,jit - PYTHON_VERSION: "3.12.0" + CARGO_ARGS: --no-default-features --features stdlib,importlib,encodings,ssl,jit + PYTHON_VERSION: "3.13.1" jobs: # codecov collects code coverage data from the rust tests, python snippets and python test suite. @@ -16,15 +19,15 @@ jobs: name: Collect code coverage data runs-on: ubuntu-latest steps: - - uses: actions/checkout@v3 + - uses: actions/checkout@v4 - uses: dtolnay/rust-toolchain@stable - uses: taiki-e/install-action@cargo-llvm-cov - - uses: actions/setup-python@v4 + - uses: actions/setup-python@v5 with: python-version: ${{ env.PYTHON_VERSION }} - run: sudo apt-get update && sudo apt-get -y install lcov - name: Run cargo-llvm-cov with Rust tests. - run: cargo llvm-cov --no-report --workspace --exclude rustpython_wasm --verbose --no-default-features --features stdlib,zlib,importlib,encodings,ssl,jit + run: cargo llvm-cov --no-report --workspace --exclude rustpython_wasm --verbose --no-default-features --features stdlib,importlib,encodings,ssl,jit - name: Run cargo-llvm-cov with Python snippets. run: python scripts/cargo-llvm-cov.py continue-on-error: true @@ -34,7 +37,7 @@ jobs: - name: Prepare code coverage data run: cargo llvm-cov report --lcov --output-path='codecov.lcov' - name: Upload to Codecov - uses: codecov/codecov-action@v3 + uses: codecov/codecov-action@v5 with: file: ./codecov.lcov @@ -42,7 +45,7 @@ jobs: name: Collect regression test data runs-on: ubuntu-latest steps: - - uses: actions/checkout@v3 + - uses: actions/checkout@v4 - uses: dtolnay/rust-toolchain@stable - name: build rustpython run: cargo build --release --verbose @@ -71,9 +74,9 @@ jobs: name: Collect what is left data runs-on: ubuntu-latest steps: - - uses: actions/checkout@v3 + - uses: actions/checkout@v4 - uses: dtolnay/rust-toolchain@stable - - uses: actions/setup-python@v4 + - uses: actions/setup-python@v5 with: python-version: ${{ env.PYTHON_VERSION }} - name: build rustpython @@ -81,7 +84,7 @@ jobs: - name: Collect what is left data run: | chmod +x ./whats_left.py - ./whats_left.py > whats_left.temp + ./whats_left.py --features "ssl,sqlite" > whats_left.temp env: RUSTPYTHONPATH: ${{ github.workspace }}/Lib - name: Upload data to the website @@ -97,6 +100,9 @@ jobs: cd website [ -f ./_data/whats_left.temp ] && cp ./_data/whats_left.temp ./_data/whats_left_lastrun.temp cp ../whats_left.temp ./_data/whats_left.temp + rm ./_data/whats_left/modules.csv + echo -e "module" > ./_data/whats_left/modules.csv + cat ./_data/whats_left.temp | grep "(entire module)" | cut -d ' ' -f 1 | sort >> ./_data/whats_left/modules.csv git add -A if git -c user.name="Github Actions" -c user.email="actions@github.com" commit -m "Update what is left results" --author="$GITHUB_ACTOR"; then git push @@ -106,9 +112,9 @@ jobs: name: Collect benchmark data runs-on: ubuntu-latest steps: - - uses: actions/checkout@v3 + - uses: actions/checkout@v4 - uses: dtolnay/rust-toolchain@stable - - uses: actions/setup-python@v4 + - uses: actions/setup-python@v5 with: python-version: 3.9 - run: cargo install cargo-criterion diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml new file mode 100644 index 0000000000..f6a1ad3209 --- /dev/null +++ b/.github/workflows/release.yml @@ -0,0 +1,173 @@ +name: Release + +on: + schedule: + # 9 AM UTC on every Monday + - cron: "0 9 * * Mon" + workflow_dispatch: + inputs: + pre-release: + type: boolean + description: Mark "Pre-Release" + required: false + default: true + +permissions: + contents: write + +env: + CARGO_ARGS: --no-default-features --features stdlib,importlib,encodings,sqlite,ssl + +jobs: + build: + runs-on: ${{ matrix.platform.runner }} + strategy: + matrix: + platform: + - runner: ubuntu-latest + target: x86_64-unknown-linux-gnu +# - runner: ubuntu-latest +# target: i686-unknown-linux-gnu +# - runner: ubuntu-latest +# target: aarch64-unknown-linux-gnu +# - runner: ubuntu-latest +# target: armv7-unknown-linux-gnueabi +# - runner: ubuntu-latest +# target: s390x-unknown-linux-gnu +# - runner: ubuntu-latest +# target: powerpc64le-unknown-linux-gnu + - runner: macos-latest + target: aarch64-apple-darwin +# - runner: macos-latest +# target: x86_64-apple-darwin + - runner: windows-latest + target: x86_64-pc-windows-msvc +# - runner: windows-latest +# target: i686-pc-windows-msvc +# - runner: windows-latest +# target: aarch64-pc-windows-msvc + fail-fast: false + steps: + - uses: actions/checkout@v4 + - uses: dtolnay/rust-toolchain@stable + - uses: cargo-bins/cargo-binstall@main + + - name: Set up Environment + shell: bash + run: rustup target add ${{ matrix.platform.target }} + - name: Set up Windows Environment + shell: bash + run: | + git config --global core.longpaths true + cargo install --target-dir=target -v cargo-vcpkg + cargo vcpkg -v build + if: runner.os == 'Windows' + - name: Set up MacOS Environment + run: brew install autoconf automake libtool + if: runner.os == 'macOS' + + - name: Build RustPython + run: cargo build --release --target=${{ matrix.platform.target }} --verbose --features=threading ${{ env.CARGO_ARGS }} + if: runner.os == 'macOS' + - name: Build RustPython + run: cargo build --release --target=${{ matrix.platform.target }} --verbose --features=threading ${{ env.CARGO_ARGS }},jit + if: runner.os != 'macOS' + + - name: Rename Binary + run: cp target/${{ matrix.platform.target }}/release/rustpython target/rustpython-release-${{ runner.os }}-${{ matrix.platform.target }} + if: runner.os != 'Windows' + - name: Rename Binary + run: cp target/${{ matrix.platform.target }}/release/rustpython.exe target/rustpython-release-${{ runner.os }}-${{ matrix.platform.target }}.exe + if: runner.os == 'Windows' + + - name: Upload Binary Artifacts + uses: actions/upload-artifact@v4 + with: + name: rustpython-release-${{ runner.os }}-${{ matrix.platform.target }} + path: target/rustpython-release-${{ runner.os }}-${{ matrix.platform.target }}* + + build-wasm: + runs-on: ubuntu-latest + steps: + - uses: actions/checkout@v4 + - uses: dtolnay/rust-toolchain@stable + with: + targets: wasm32-wasip1 + + - name: Build RustPython + run: cargo build --target wasm32-wasip1 --no-default-features --features freeze-stdlib,stdlib --release + + - name: Rename Binary + run: cp target/wasm32-wasip1/release/rustpython.wasm target/rustpython-release-wasm32-wasip1.wasm + + - name: Upload Binary Artifacts + uses: actions/upload-artifact@v4 + with: + name: rustpython-release-wasm32-wasip1 + path: target/rustpython-release-wasm32-wasip1.wasm + + - name: install wasm-pack + run: curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh + - uses: actions/setup-node@v4 + - uses: mwilliamson/setup-wabt-action@v3 + with: { wabt-version: "1.0.30" } + - name: build demo + run: | + npm install + npm run dist + env: + NODE_OPTIONS: "--openssl-legacy-provider" + working-directory: ./wasm/demo + - name: build notebook demo + run: | + npm install + npm run dist + mv dist ../demo/dist/notebook + env: + NODE_OPTIONS: "--openssl-legacy-provider" + working-directory: ./wasm/notebook + - name: Deploy demo to Github Pages + uses: peaceiris/actions-gh-pages@v4 + with: + deploy_key: ${{ secrets.ACTIONS_DEMO_DEPLOY_KEY }} + publish_dir: ./wasm/demo/dist + external_repository: RustPython/demo + publish_branch: master + + release: + runs-on: ubuntu-latest + needs: [build, build-wasm] + steps: + - name: Download Binary Artifacts + uses: actions/download-artifact@v4 + with: + path: bin + pattern: rustpython-* + merge-multiple: true + + - name: List Binaries + run: | + ls -lah bin/ + file bin/* + - name: Create Release + env: + GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} + tag: ${{ github.ref_name }} + run: ${{ github.run_number }} + run: | + if [[ "${{ github.event.inputs.pre-release }}" == "false" ]]; then + RELEASE_TYPE_NAME=Release + PRERELEASE_ARG= + else + RELEASE_TYPE_NAME=Pre-Release + PRERELEASE_ARG=--prerelease + fi + + today=$(date '+%Y-%m-%d') + gh release create "$today-$tag-$run" \ + --repo="$GITHUB_REPOSITORY" \ + --title="RustPython $RELEASE_TYPE_NAME $today-$tag #$run" \ + --target="$tag" \ + --generate-notes \ + $PRERELEASE_ARG \ + bin/rustpython-release-* diff --git a/.gitignore b/.gitignore index 485272adfb..cb7165aaca 100644 --- a/.gitignore +++ b/.gitignore @@ -2,11 +2,11 @@ /*/target **/*.rs.bk **/*.bytecode -__pycache__ +__pycache__/ **/*.pytest_cache .*sw* .repl_history.txt -.vscode +.vscode/ wasm-pack.log .idea/ .envrc diff --git a/Cargo.lock b/Cargo.lock index 9d8f440878..63608aefb9 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -1,18 +1,12 @@ # This file is automatically @generated by Cargo. # It is not intended for manual editing. -version = 3 +version = 4 [[package]] -name = "Inflector" -version = "0.11.4" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "fe438c63458706e03479442743baae6c88256498e6431708f6dfc520a26515d3" - -[[package]] -name = "adler" -version = "1.0.2" +name = "adler2" +version = "2.0.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe" +checksum = "512761e0bb2578dd7380c6baaa0f4ce03e84f95e960231d1dec8bf4d7d6e2627" [[package]] name = "adler32" @@ -27,21 +21,27 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "e89da841a80418a9b391ebaea17f5c112ffaaa96f621d2c285b5174da76b9011" dependencies = [ "cfg-if", - "getrandom", + "getrandom 0.2.15", "once_cell", "version_check", - "zerocopy", + "zerocopy 0.7.35", ] [[package]] name = "aho-corasick" -version = "0.7.20" +version = "1.1.3" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "cc936419f96fa211c1b9166887b38e5e40b19958e5b895be7c1f93adec7071ac" +checksum = "8e60d3430d3a69478ad0993f19238d2df97c507009a52b3c10addcd7f6bcb916" dependencies = [ "memchr", ] +[[package]] +name = "allocator-api2" +version = "0.2.21" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "683d7910e743518b0e34f1186f92494becacb047c7b6bf616c96772180fef923" + [[package]] name = "android-tzdata" version = "0.1.1" @@ -58,19 +58,66 @@ dependencies = [ ] [[package]] -name = "ansi_term" -version = "0.12.1" +name = "anes" +version = "0.1.6" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "4b46cbb362ab8752921c97e041f5e366ee6297bd428a31275b9fcf1e380f7299" + +[[package]] +name = "anstream" +version = "0.6.18" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "d52a9bb7ec0cf484c551830a7ce27bd20d67eac647e1befb56b0be4ee39a55d2" +checksum = "8acc5369981196006228e28809f761875c0327210a891e941f4c683b3a99529b" dependencies = [ - "winapi", + "anstyle", + "anstyle-parse", + "anstyle-query", + "anstyle-wincon", + "colorchoice", + "is_terminal_polyfill", + "utf8parse", +] + +[[package]] +name = "anstyle" +version = "1.0.10" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "55cc3b69f167a1ef2e161439aa98aed94e6028e5f9a59be9a6ffb47aef1651f9" + +[[package]] +name = "anstyle-parse" +version = "0.2.6" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "3b2d16507662817a6a20a9ea92df6652ee4f94f914589377d69f3b21bc5798a9" +dependencies = [ + "utf8parse", +] + +[[package]] +name = "anstyle-query" +version = "1.1.2" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "79947af37f4177cfead1110013d678905c37501914fba0efea834c3fe9a8d60c" +dependencies = [ + "windows-sys 0.59.0", +] + +[[package]] +name = "anstyle-wincon" +version = "3.0.7" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "ca3534e77181a9cc07539ad51f2141fe32f6c3ffd4df76db8ad92346b003ae4e" +dependencies = [ + "anstyle", + "once_cell", + "windows-sys 0.59.0", ] [[package]] name = "anyhow" -version = "1.0.69" +version = "1.0.97" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "224afbd727c3d6e4b90103ece64b8d1b67fbb1973b1046c2281eed3f3803f800" +checksum = "dcfed56ad506cb2c684a14971b8861fdc3baaaae314b9e5f9bb532cbe3ba7a4f" [[package]] name = "approx" @@ -82,10 +129,10 @@ dependencies = [ ] [[package]] -name = "arrayvec" -version = "0.7.2" +name = "arbitrary" +version = "1.4.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "8da52d66c7071e2e3fa2a1e5c6d088fec47b593032b254f5e980de8ea54454d6" +checksum = "dde20b3d026af13f561bdd0f15edf01fc734f0dafcedbaf42bba506a9517f223" [[package]] name = "ascii" @@ -95,35 +142,44 @@ checksum = "d92bec98840b8f03a5ff5413de5293bfcd8bf96467cf5452609f939ec6f5de16" [[package]] name = "atomic" -version = "0.5.1" +version = "0.6.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "b88d82667eca772c4aa12f0f1348b3ae643424c8876448f3f7bd5787032e234c" +checksum = "8d818003e740b63afc82337e3160717f4f63078720a810b7b903e70a5d1d2994" dependencies = [ - "autocfg", + "bytemuck", ] [[package]] -name = "atty" -version = "0.2.14" +name = "autocfg" +version = "1.4.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8" -dependencies = [ - "hermit-abi 0.1.19", - "libc", - "winapi", -] +checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26" [[package]] -name = "autocfg" -version = "1.1.0" +name = "base64" +version = "0.22.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa" +checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6" [[package]] -name = "base64" -version = "0.13.1" +name = "bindgen" +version = "0.71.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8" +checksum = "5f58bf3d7db68cfbac37cfc485a8d711e87e064c3d0fe0435b92f7a407f9d6b3" +dependencies = [ + "bitflags 2.9.0", + "cexpr", + "clang-sys", + "itertools 0.13.0", + "log", + "prettyplease", + "proc-macro2", + "quote", + "regex", + "rustc-hash", + "shlex", + "syn 2.0.100", +] [[package]] name = "bitflags" @@ -133,9 +189,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a" [[package]] name = "bitflags" -version = "2.5.0" +version = "2.9.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "cf4b9d6a944f767f8e5e0db018570623c85f3d925ac718db4e06d0187adb21c1" 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"unic-char-property", "unic-normal", @@ -2296,9 +2531,9 @@ dependencies = [ "unicode_names2", "uuid", "widestring", - "winapi", - "windows-sys 0.52.0", + "windows-sys 0.59.0", "xml-rs", + "xz2", ] [[package]] @@ -2307,30 +2542,33 @@ version = "0.4.0" dependencies = [ "ahash", "ascii", - "atty", - "bitflags 2.5.0", + "bitflags 2.9.0", "bstr", "caseless", "cfg-if", "chrono", + "constant_time_eq", "crossbeam-utils", + "errno", "exitcode", "flame", "flamer", - "getrandom", + "getrandom 0.3.2", "glob", "half", "hex", - "indexmap 2.2.6", + "indexmap", "is-macro", - "itertools 0.11.0", + "itertools 0.14.0", "junction", "libc", + "libffi", + "libloading", "log", "malachite-bigint", "memchr", - "memoffset 0.9.1", - "nix 0.27.1", + "memoffset", + "nix", "num-complex", "num-integer", "num-traits", @@ -2340,21 +2578,20 @@ dependencies = [ "optional", "parking_lot", "paste", - "rand", "result-like", - "rustc_version", + "ruff_python_ast", + "ruff_python_parser", + "ruff_source_file", + "ruff_text_size", "rustix", - "rustpython-ast", "rustpython-codegen", "rustpython-common", "rustpython-compiler", "rustpython-compiler-core", + "rustpython-compiler-source", "rustpython-derive", - "rustpython-format", "rustpython-jit", "rustpython-literal", - "rustpython-parser", - "rustpython-parser-core", "rustpython-sre_engine", "rustyline", "schannel", @@ -2362,7 +2599,7 @@ dependencies = [ "static_assertions", "strum", "strum_macros", - "thiserror", + "thiserror 2.0.12", "thread_local", "timsort", "uname", @@ -2375,18 +2612,29 @@ dependencies = [ "which", "widestring", "windows", - "windows-sys 0.52.0", + "windows-sys 0.59.0", "winreg", ] +[[package]] +name = "rustpython-wtf8" +version = "0.4.0" +dependencies = [ + "ascii", + "bstr", + "itertools 0.14.0", + "memchr", +] + [[package]] name = "rustpython_wasm" version = "0.4.0" dependencies = [ "console_error_panic_hook", + "getrandom 0.2.15", "js-sys", + "ruff_python_parser", "rustpython-common", - "rustpython-parser", "rustpython-pylib", "rustpython-stdlib", "rustpython-vm", @@ -2399,17 +2647,17 @@ dependencies = [ [[package]] name = "rustversion" -version = "1.0.11" +version = "1.0.20" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "5583e89e108996506031660fe09baa5011b9dd0341b89029313006d1fb508d70" +checksum = "eded382c5f5f786b989652c49544c4877d9f015cc22e145a5ea8ea66c2921cd2" [[package]] name = "rustyline" -version = "14.0.0" +version = "15.0.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "7803e8936da37efd9b6d4478277f4b2b9bb5cdb37a113e8d63222e58da647e63" +checksum = "2ee1e066dc922e513bda599c6ccb5f3bb2b0ea5870a579448f2622993f0a9a2f" dependencies = [ - "bitflags 2.5.0", + "bitflags 2.9.0", "cfg-if", "clipboard-win", "fd-lock", @@ -2417,19 +2665,19 @@ dependencies = [ "libc", "log", "memchr", - "nix 0.28.0", + "nix", "radix_trie", "unicode-segmentation", - "unicode-width", + "unicode-width 0.2.0", "utf8parse", - "windows-sys 0.52.0", + "windows-sys 0.59.0", ] [[package]] name = "ryu" -version = "1.0.15" +version = "1.0.20" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "1ad4cc8da4ef723ed60bced201181d83791ad433213d8c24efffda1eec85d741" +checksum = "28d3b2b1366ec20994f1fd18c3c594f05c5dd4bc44d8bb0c1c632c8d6829481f" [[package]] name = "same-file" @@ -2442,36 +2690,24 @@ dependencies = [ [[package]] name = "schannel" -version = "0.1.22" +version = "0.1.27" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "0c3733bf4cf7ea0880754e19cb5a462007c4a8c1914bff372ccc95b464f1df88" +checksum = "1f29ebaa345f945cec9fbbc532eb307f0fdad8161f281b6369539c8d84876b3d" dependencies = [ - "windows-sys 0.48.0", + "windows-sys 0.59.0", ] [[package]] name = "scopeguard" -version = "1.1.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd" - -[[package]] -name = "scratch" -version = "1.0.3" -source 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"ffe5e8e31046ce6230cc7215707b816e339ff4d4d67c65dffa206fd0f7aa7b9a" - -[[package]] -name = "windows_x86_64_gnu" -version = "0.36.1" +version = "0.52.6" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "4dcd171b8776c41b97521e5da127a2d86ad280114807d0b2ab1e462bc764d9e1" - -[[package]] -name = "windows_x86_64_gnu" -version = "0.42.1" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c1040f221285e17ebccbc2591ffdc2d44ee1f9186324dd3e84e99ac68d699c45" +checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66" [[package]] name = "windows_x86_64_gnu" @@ -3443,15 +3638,9 @@ checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e" [[package]] name = "windows_x86_64_gnu" -version = "0.52.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "3d6fa32db2bc4a2f5abeacf2b69f7992cd09dca97498da74a151a3132c26befd" - -[[package]] -name = "windows_x86_64_gnullvm" -version = "0.42.1" 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[[package]] name = "windows_x86_64_msvc" -version = "0.42.1" +version = "0.52.6" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "447660ad36a13288b1db4d4248e857b510e8c3a225c822ba4fb748c0aafecffd" +checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec" [[package]] -name = "windows_x86_64_msvc" -version = "0.48.5" +name = "winreg" +version = "0.55.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538" +checksum = "cb5a765337c50e9ec252c2069be9bf91c7df47afb103b642ba3a53bf8101be97" +dependencies = [ + "cfg-if", + "windows-sys 0.59.0", +] [[package]] -name = "windows_x86_64_msvc" -version = "0.52.0" +name = "winsafe" +version = "0.0.19" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "dff9641d1cd4be8d1a070daf9e3773c5f67e78b4d9d42263020c057706765c04" +checksum = 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-checksum = "52839dc911083a8ef63efa4d039d1f58b5e409f923e44c80828f206f66e5541c" +checksum = "1b9b4fd18abc82b8136838da5d50bae7bdea537c574d8dc1a34ed098d6c166f0" +dependencies = [ + "zerocopy-derive 0.7.35", +] [[package]] name = "zerocopy" -version = "0.7.32" +version = "0.8.24" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "2586fea28e186957ef732a5f8b3be2da217d65c5969d4b1e17f973ebbe876879" +dependencies = [ + "zerocopy-derive 0.8.24", +] + +[[package]] +name = "zerocopy-derive" +version = "0.7.35" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "74d4d3961e53fa4c9a25a8637fc2bfaf2595b3d3ae34875568a5cf64787716be" +checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e" dependencies = [ - "zerocopy-derive", + "proc-macro2", + "quote", + "syn 2.0.100", ] [[package]] name = "zerocopy-derive" -version = "0.7.32" +version = "0.8.24" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "9ce1b18ccd8e73a9321186f97e46f9f04b778851177567b1975109d26a08d2a6" +checksum = "a996a8f63c5c4448cd959ac1bab0aaa3306ccfd060472f85943ee0750f0169be" dependencies = [ "proc-macro2", "quote", - "syn 2.0.32", + "syn 2.0.100", ] + +[[package]] +name = "zlib-rs" +version = "0.5.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "868b928d7949e09af2f6086dfc1e01936064cc7a819253bce650d4e2a2d63ba8" diff --git a/Cargo.toml b/Cargo.toml index 44025aa7fe..163289e8b2 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -10,35 +10,34 @@ repository.workspace = true license.workspace = true [features] -default = ["threading", "stdlib", "zlib", "importlib"] +default = ["threading", "stdlib", "stdio", "importlib"] importlib = ["rustpython-vm/importlib"] encodings = ["rustpython-vm/encodings"] +stdio = ["rustpython-vm/stdio"] stdlib = ["rustpython-stdlib", "rustpython-pylib", "encodings"] flame-it = ["rustpython-vm/flame-it", "flame", "flamescope"] freeze-stdlib = ["stdlib", "rustpython-vm/freeze-stdlib", "rustpython-pylib?/freeze-stdlib"] jit = ["rustpython-vm/jit"] threading = ["rustpython-vm/threading", "rustpython-stdlib/threading"] -zlib = ["stdlib", "rustpython-stdlib/zlib"] -bz2 = ["stdlib", "rustpython-stdlib/bz2"] sqlite = ["rustpython-stdlib/sqlite"] ssl = ["rustpython-stdlib/ssl"] ssl-vendor = ["ssl", "rustpython-stdlib/ssl-vendor"] +tkinter = ["rustpython-stdlib/tkinter"] [dependencies] rustpython-compiler = { workspace = true } rustpython-pylib = { workspace = true, optional = true } rustpython-stdlib = { workspace = true, optional = true, features = ["compiler"] } rustpython-vm = { workspace = true, features = ["compiler"] } -rustpython-parser = { workspace = true } +ruff_python_parser = { workspace = true } -atty = { workspace = true } cfg-if = { workspace = true } log = { workspace = true } flame = { workspace = true, optional = true } -clap = "2.34" -dirs = { package = "dirs-next", version = "2.0.0" } -env_logger = { version = "0.9.0", default-features = false, features = ["atty", "termcolor"] } +lexopt = "0.3" +dirs = { package = "dirs-next", version = "2.0" } +env_logger = "0.11" flamescope = { version = "0.1.2", optional = true } [target.'cfg(windows)'.dependencies] @@ -48,8 +47,8 @@ libc = { workspace = true } rustyline = { workspace = true } [dev-dependencies] -criterion = { version = "0.3.5", features = ["html_reports"] } -pyo3 = { version = "0.20.2", features = ["auto-initialize"] } +criterion = { workspace = true } +pyo3 = { version = "0.24", features = ["auto-initialize"] } [[bench]] name = "execution" @@ -80,6 +79,7 @@ opt-level = 3 lto = "thin" [patch.crates-io] +radium = { version = "1.1.0", git = "https://github.com/youknowone/ferrilab", branch = "fix-nightly" } # REDOX START, Uncomment when you want to compile/check with redoxer # REDOX END @@ -93,23 +93,43 @@ rev = "2024.02.14" [package.metadata.vcpkg.target] x86_64-pc-windows-msvc = { triplet = "x64-windows-static-md", dev-dependencies = ["openssl" ] } +[package.metadata.packager] +product-name = "RustPython" +identifier = "com.rustpython.rustpython" +description = "An open source Python 3 interpreter written in Rust" +homepage = "https://rustpython.github.io/" +license_file = "LICENSE" +authors = ["RustPython Team"] +publisher = "RustPython Team" +resources = ["LICENSE", "README.md", "Lib"] +icons = ["32x32.png"] + +[package.metadata.packager.nsis] +installer_mode = "both" +template = "installer-config/installer.nsi" + +[package.metadata.packager.wix] +template = "installer-config/installer.wxs" + + [workspace] resolver = "2" members = [ - "compiler", "compiler/core", "compiler/codegen", - ".", "common", "derive", "jit", "vm", "vm/sre_engine", "pylib", "stdlib", "derive-impl", + "compiler", "compiler/core", "compiler/codegen", "compiler/literal", "compiler/source", + ".", "common", "derive", "jit", "vm", "vm/sre_engine", "pylib", "stdlib", "derive-impl", "wtf8", "wasm/lib", ] [workspace.package] version = "0.4.0" authors = ["RustPython Team"] -edition = "2021" -rust-version = "1.78.0" +edition = "2024" +rust-version = "1.85.0" repository = "https://github.com/RustPython/RustPython" license = "MIT" [workspace.dependencies] +rustpython-compiler-source = { path = "compiler/source" } rustpython-compiler-core = { path = "compiler/core", version = "0.4.0" } rustpython-compiler = { path = "compiler", version = "0.4.0" } rustpython-codegen = { path = "compiler/codegen", version = "0.4.0" } @@ -117,77 +137,87 @@ rustpython-common = { path = "common", version = "0.4.0" } rustpython-derive = { path = "derive", version = "0.4.0" } rustpython-derive-impl = { path = "derive-impl", version = "0.4.0" } rustpython-jit = { path = "jit", version = "0.4.0" } +rustpython-literal = { path = "compiler/literal", version = "0.4.0" } rustpython-vm = { path = "vm", default-features = false, version = "0.4.0" } rustpython-pylib = { path = "pylib", version = "0.4.0" } rustpython-stdlib = { path = "stdlib", default-features = false, version = "0.4.0" } rustpython-sre_engine = { path = "vm/sre_engine", version = "0.4.0" } +rustpython-wtf8 = { path = "wtf8", version = "0.4.0" } rustpython-doc = { git = "https://github.com/RustPython/__doc__", tag = "0.3.0", version = "0.3.0" } -rustpython-literal = { version = "0.4.0" } -rustpython-parser-core = { version = "0.4.0" } -rustpython-parser = { version = "0.4.0" } -rustpython-ast = { version = "0.4.0" } -rustpython-format= { version = "0.4.0" } -# rustpython-literal = { git = "https://github.com/RustPython/Parser.git", version = "0.4.0", rev = "00d2f1d1a7522ef9c85c10dfa5f0bb7178dee655" } -# rustpython-parser-core = { git = "https://github.com/RustPython/Parser.git", version = "0.4.0", rev = "00d2f1d1a7522ef9c85c10dfa5f0bb7178dee655" } -# rustpython-parser = { git = "https://github.com/RustPython/Parser.git", version = "0.4.0", rev = "00d2f1d1a7522ef9c85c10dfa5f0bb7178dee655" } -# rustpython-ast = { git = "https://github.com/RustPython/Parser.git", version = "0.4.0", rev = "00d2f1d1a7522ef9c85c10dfa5f0bb7178dee655" } -# rustpython-format = { git = "https://github.com/RustPython/Parser.git", version = "0.4.0", rev = "00d2f1d1a7522ef9c85c10dfa5f0bb7178dee655" } -# rustpython-literal = { path = "../RustPython-parser/literal" } -# rustpython-parser-core = { path = "../RustPython-parser/core" } -# rustpython-parser = { path = "../RustPython-parser/parser" } -# rustpython-ast = { path = "../RustPython-parser/ast" } -# rustpython-format = { path = "../RustPython-parser/format" } +ruff_python_parser = { git = "https://github.com/astral-sh/ruff.git", tag = "0.11.0" } +ruff_python_ast = { git = "https://github.com/astral-sh/ruff.git", tag = "0.11.0" } +ruff_text_size = { git = "https://github.com/astral-sh/ruff.git", tag = "0.11.0" } +ruff_source_file = { git = "https://github.com/astral-sh/ruff.git", tag = "0.11.0" } ahash = "0.8.11" -ascii = "1.0" -atty = "0.2.14" -bitflags = "2.4.1" -bstr = "0.2.17" +ascii = "1.1" +bitflags = "2.4.2" +bstr = "1" cfg-if = "1.0" -chrono = "0.4.37" -crossbeam-utils = "0.8.19" +chrono = "0.4.39" +constant_time_eq = "0.4" +criterion = { version = "0.5", features = ["html_reports"] } +crossbeam-utils = "0.8.21" flame = "0.2.2" -getrandom = "0.2.12" +getrandom = { version = "0.3", features = ["std"] } glob = "0.3" hex = "0.4.3" indexmap = { version = "2.2.6", features = ["std"] } -insta = "1.38.0" -itertools = "0.11.0" -is-macro = "0.3.0" -junction = "1.0.0" -libc = "0.2.153" -log = "0.4.16" -nix = { version = "0.27", features = ["fs", "user", "process", "term", "time", "signal", "ioctl", "socket", "sched", "zerocopy", "dir", "hostname", "net", "poll"] } -malachite-bigint = "0.2.0" -malachite-q = "0.4.4" -malachite-base = "0.4.4" -memchr = "2.7.2" -num-complex = "0.4.0" -num-integer = "0.1.44" +insta = "1.42" +itertools = "0.14.0" +is-macro = "0.3.7" +junction = "1.2.0" +libc = "0.2.169" +libffi = "4.0" +log = "0.4.27" +nix = { version = "0.29", features = ["fs", "user", "process", "term", "time", "signal", "ioctl", "socket", "sched", "zerocopy", "dir", "hostname", "net", "poll"] } +malachite-bigint = "0.6" +malachite-q = "0.6" +malachite-base = "0.6" +memchr = "2.7.4" +num-complex = "0.4.6" +num-integer = "0.1.46" num-traits = "0.2" -num_enum = "0.7" -once_cell = "1.19.0" -parking_lot = "0.12.1" -paste = "1.0.7" -rand = "0.8.5" -rustix = { version = "0.38", features = ["event"] } -rustyline = "14.0.0" +num_enum = { version = "0.7", default-features = false } +optional = "0.5" +once_cell = "1.20.3" +parking_lot = "0.12.3" +paste = "1.0.15" +proc-macro2 = "1.0.93" +pymath = "0.0.2" +quote = "1.0.38" +radium = "1.1" +rand = "0.9" +rand_core = { version = "0.9", features = ["os_rng"] } +rustix = { version = "1.0", features = ["event"] } +rustyline = "15.0.0" serde = { version = "1.0.133", default-features = false } -schannel = "0.1.22" +schannel = "0.1.27" static_assertions = "1.1" -syn = "1.0.109" -thiserror = "1.0" -thread_local = "1.1.4" -unicode_names2 = "1.2.0" +strum = "0.27" +strum_macros = "0.27" +syn = "2" +thiserror = "2.0" +thread_local = "1.1.8" +unicode-casing = "0.1.0" +unic-char-property = "0.9.0" +unic-normal = "0.9.0" +unic-ucd-age = "0.9.0" +unic-ucd-bidi = "0.9.0" +unic-ucd-category = "0.9.0" +unic-ucd-ident = "0.9.0" +unicode_names2 = "1.3.0" widestring = "1.1.0" -windows-sys = "0.52.0" -wasm-bindgen = "0.2.92" +windows-sys = "0.59.0" +wasm-bindgen = "0.2.100" # Lints [workspace.lints.rust] unsafe_code = "allow" +unsafe_op_in_unsafe_fn = "deny" +elided_lifetimes_in_paths = "warn" [workspace.lints.clippy] perf = "warn" diff --git a/DEVELOPMENT.md b/DEVELOPMENT.md index 7c79a011ba..aa7d99eef3 100644 --- a/DEVELOPMENT.md +++ b/DEVELOPMENT.md @@ -25,7 +25,7 @@ RustPython requires the following: stable version: `rustup update stable` - If you do not have Rust installed, use [rustup](https://rustup.rs/) to do so. -- CPython version 3.12 or higher +- CPython version 3.13 or higher - CPython can be installed by your operating system's package manager, from the [Python website](https://www.python.org/downloads/), or using a third-party distribution, such as diff --git a/LICENSE b/LICENSE index 7213274e0f..e2aa2ed952 100644 --- a/LICENSE +++ b/LICENSE @@ -1,6 +1,6 @@ MIT License -Copyright (c) 2020 RustPython Team +Copyright (c) 2025 RustPython Team Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal diff --git a/Lib/_aix_support.py b/Lib/_aix_support.py new file mode 100644 index 0000000000..dadc75c2bf --- /dev/null +++ b/Lib/_aix_support.py @@ -0,0 +1,108 @@ +"""Shared AIX support functions.""" + +import sys +import sysconfig + + +# Taken from _osx_support _read_output function +def _read_cmd_output(commandstring, capture_stderr=False): + """Output from successful command execution or None""" + # Similar to os.popen(commandstring, "r").read(), + # but without actually using os.popen because that + # function is not usable during python bootstrap. + import os + import contextlib + fp = open("/tmp/_aix_support.%s"%( + os.getpid(),), "w+b") + + with contextlib.closing(fp) as fp: + if capture_stderr: + cmd = "%s >'%s' 2>&1" % (commandstring, fp.name) + else: + cmd = "%s 2>/dev/null >'%s'" % (commandstring, fp.name) + return fp.read() if not os.system(cmd) else None + + +def _aix_tag(vrtl, bd): + # type: (List[int], int) -> str + # Infer the ABI bitwidth from maxsize (assuming 64 bit as the default) + _sz = 32 if sys.maxsize == (2**31-1) else 64 + _bd = bd if bd != 0 else 9988 + # vrtl[version, release, technology_level] + return "aix-{:1x}{:1d}{:02d}-{:04d}-{}".format(vrtl[0], vrtl[1], vrtl[2], _bd, _sz) + + +# extract version, release and technology level from a VRMF string +def _aix_vrtl(vrmf): + # type: (str) -> List[int] + v, r, tl = vrmf.split(".")[:3] + return [int(v[-1]), int(r), int(tl)] + + +def _aix_bos_rte(): + # type: () -> Tuple[str, int] + """ + Return a Tuple[str, int] e.g., ['7.1.4.34', 1806] + The fileset bos.rte represents the current AIX run-time level. It's VRMF and + builddate reflect the current ABI levels of the runtime environment. + If no builddate is found give a value that will satisfy pep425 related queries + """ + # All AIX systems to have lslpp installed in this location + # subprocess may not be available during python bootstrap + try: + import subprocess + out = subprocess.check_output(["/usr/bin/lslpp", "-Lqc", "bos.rte"]) + except ImportError: + out = _read_cmd_output("/usr/bin/lslpp -Lqc bos.rte") + out = out.decode("utf-8") + out = out.strip().split(":") # type: ignore + _bd = int(out[-1]) if out[-1] != '' else 9988 + return (str(out[2]), _bd) + + +def aix_platform(): + # type: () -> str + """ + AIX filesets are identified by four decimal values: V.R.M.F. + V (version) and R (release) can be retrieved using ``uname`` + Since 2007, starting with AIX 5.3 TL7, the M value has been + included with the fileset bos.rte and represents the Technology + Level (TL) of AIX. The F (Fix) value also increases, but is not + relevant for comparing releases and binary compatibility. + For binary compatibility the so-called builddate is needed. + Again, the builddate of an AIX release is associated with bos.rte. + AIX ABI compatibility is described as guaranteed at: https://www.ibm.com/\ + support/knowledgecenter/en/ssw_aix_72/install/binary_compatability.html + + For pep425 purposes the AIX platform tag becomes: + "aix-{:1x}{:1d}{:02d}-{:04d}-{}".format(v, r, tl, builddate, bitsize) + e.g., "aix-6107-1415-32" for AIX 6.1 TL7 bd 1415, 32-bit + and, "aix-6107-1415-64" for AIX 6.1 TL7 bd 1415, 64-bit + """ + vrmf, bd = _aix_bos_rte() + return _aix_tag(_aix_vrtl(vrmf), bd) + + +# extract vrtl from the BUILD_GNU_TYPE as an int +def _aix_bgt(): + # type: () -> List[int] + gnu_type = sysconfig.get_config_var("BUILD_GNU_TYPE") + if not gnu_type: + raise ValueError("BUILD_GNU_TYPE is not defined") + return _aix_vrtl(vrmf=gnu_type) + + +def aix_buildtag(): + # type: () -> str + """ + Return the platform_tag of the system Python was built on. + """ + # AIX_BUILDDATE is defined by configure with: + # lslpp -Lcq bos.rte | awk -F: '{ print $NF }' + build_date = sysconfig.get_config_var("AIX_BUILDDATE") + try: + build_date = int(build_date) + except (ValueError, TypeError): + raise ValueError(f"AIX_BUILDDATE is not defined or invalid: " + f"{build_date!r}") + return _aix_tag(_aix_bgt(), build_date) diff --git a/Lib/_android_support.py b/Lib/_android_support.py new file mode 100644 index 0000000000..ae506f6a4b --- /dev/null +++ b/Lib/_android_support.py @@ -0,0 +1,181 @@ +import io +import sys +from threading import RLock +from time import sleep, time + +# The maximum length of a log message in bytes, including the level marker and +# tag, is defined as LOGGER_ENTRY_MAX_PAYLOAD at +# https://cs.android.com/android/platform/superproject/+/android-14.0.0_r1:system/logging/liblog/include/log/log.h;l=71. +# Messages longer than this will be truncated by logcat. This limit has already +# been reduced at least once in the history of Android (from 4076 to 4068 between +# API level 23 and 26), so leave some headroom. +MAX_BYTES_PER_WRITE = 4000 + +# UTF-8 uses a maximum of 4 bytes per character, so limiting text writes to this +# size ensures that we can always avoid exceeding MAX_BYTES_PER_WRITE. +# However, if the actual number of bytes per character is smaller than that, +# then we may still join multiple consecutive text writes into binary +# writes containing a larger number of characters. +MAX_CHARS_PER_WRITE = MAX_BYTES_PER_WRITE // 4 + + +# When embedded in an app on current versions of Android, there's no easy way to +# monitor the C-level stdout and stderr. The testbed comes with a .c file to +# redirect them to the system log using a pipe, but that wouldn't be convenient +# or appropriate for all apps. So we redirect at the Python level instead. +def init_streams(android_log_write, stdout_prio, stderr_prio): + if sys.executable: + return # Not embedded in an app. + + global logcat + logcat = Logcat(android_log_write) + + sys.stdout = TextLogStream( + stdout_prio, "python.stdout", sys.stdout.fileno()) + sys.stderr = TextLogStream( + stderr_prio, "python.stderr", sys.stderr.fileno()) + + +class TextLogStream(io.TextIOWrapper): + def __init__(self, prio, tag, fileno=None, **kwargs): + # The default is surrogateescape for stdout and backslashreplace for + # stderr, but in the context of an Android log, readability is more + # important than reversibility. + kwargs.setdefault("encoding", "UTF-8") + kwargs.setdefault("errors", "backslashreplace") + + super().__init__(BinaryLogStream(prio, tag, fileno), **kwargs) + self._lock = RLock() + self._pending_bytes = [] + self._pending_bytes_count = 0 + + def __repr__(self): + return f"" + + def write(self, s): + if not isinstance(s, str): + raise TypeError( + f"write() argument must be str, not {type(s).__name__}") + + # In case `s` is a str subclass that writes itself to stdout or stderr + # when we call its methods, convert it to an actual str. + s = str.__str__(s) + + # We want to emit one log message per line wherever possible, so split + # the string into lines first. Note that "".splitlines() == [], so + # nothing will be logged for an empty string. + with self._lock: + for line in s.splitlines(keepends=True): + while line: + chunk = line[:MAX_CHARS_PER_WRITE] + line = line[MAX_CHARS_PER_WRITE:] + self._write_chunk(chunk) + + return len(s) + + # The size and behavior of TextIOWrapper's buffer is not part of its public + # API, so we handle buffering ourselves to avoid truncation. + def _write_chunk(self, s): + b = s.encode(self.encoding, self.errors) + if self._pending_bytes_count + len(b) > MAX_BYTES_PER_WRITE: + self.flush() + + self._pending_bytes.append(b) + self._pending_bytes_count += len(b) + if ( + self.write_through + or b.endswith(b"\n") + or self._pending_bytes_count > MAX_BYTES_PER_WRITE + ): + self.flush() + + def flush(self): + with self._lock: + self.buffer.write(b"".join(self._pending_bytes)) + self._pending_bytes.clear() + self._pending_bytes_count = 0 + + # Since this is a line-based logging system, line buffering cannot be turned + # off, i.e. a newline always causes a flush. + @property + def line_buffering(self): + return True + + +class BinaryLogStream(io.RawIOBase): + def __init__(self, prio, tag, fileno=None): + self.prio = prio + self.tag = tag + self._fileno = fileno + + def __repr__(self): + return f"" + + def writable(self): + return True + + def write(self, b): + if type(b) is not bytes: + try: + b = bytes(memoryview(b)) + except TypeError: + raise TypeError( + f"write() argument must be bytes-like, not {type(b).__name__}" + ) from None + + # Writing an empty string to the stream should have no effect. + if b: + logcat.write(self.prio, self.tag, b) + return len(b) + + # This is needed by the test suite --timeout option, which uses faulthandler. + def fileno(self): + if self._fileno is None: + raise io.UnsupportedOperation("fileno") + return self._fileno + + +# When a large volume of data is written to logcat at once, e.g. when a test +# module fails in --verbose3 mode, there's a risk of overflowing logcat's own +# buffer and losing messages. We avoid this by imposing a rate limit using the +# token bucket algorithm, based on a conservative estimate of how fast `adb +# logcat` can consume data. +MAX_BYTES_PER_SECOND = 1024 * 1024 + +# The logcat buffer size of a device can be determined by running `logcat -g`. +# We set the token bucket size to half of the buffer size of our current minimum +# API level, because other things on the system will be producing messages as +# well. +BUCKET_SIZE = 128 * 1024 + +# https://cs.android.com/android/platform/superproject/+/android-14.0.0_r1:system/logging/liblog/include/log/log_read.h;l=39 +PER_MESSAGE_OVERHEAD = 28 + + +class Logcat: + def __init__(self, android_log_write): + self.android_log_write = android_log_write + self._lock = RLock() + self._bucket_level = 0 + self._prev_write_time = time() + + def write(self, prio, tag, message): + # Encode null bytes using "modified UTF-8" to avoid them truncating the + # message. + message = message.replace(b"\x00", b"\xc0\x80") + + with self._lock: + now = time() + self._bucket_level += ( + (now - self._prev_write_time) * MAX_BYTES_PER_SECOND) + + # If the bucket level is still below zero, the clock must have gone + # backwards, so reset it to zero and continue. + self._bucket_level = max(0, min(self._bucket_level, BUCKET_SIZE)) + self._prev_write_time = now + + self._bucket_level -= PER_MESSAGE_OVERHEAD + len(tag) + len(message) + if self._bucket_level < 0: + sleep(-self._bucket_level / MAX_BYTES_PER_SECOND) + + self.android_log_write(prio, tag, message) diff --git a/Lib/_apple_support.py b/Lib/_apple_support.py new file mode 100644 index 0000000000..92febdcf58 --- /dev/null +++ b/Lib/_apple_support.py @@ -0,0 +1,66 @@ +import io +import sys + + +def init_streams(log_write, stdout_level, stderr_level): + # Redirect stdout and stderr to the Apple system log. This method is + # invoked by init_apple_streams() (initconfig.c) if config->use_system_logger + # is enabled. + sys.stdout = SystemLog(log_write, stdout_level, errors=sys.stderr.errors) + sys.stderr = SystemLog(log_write, stderr_level, errors=sys.stderr.errors) + + +class SystemLog(io.TextIOWrapper): + def __init__(self, log_write, level, **kwargs): + kwargs.setdefault("encoding", "UTF-8") + kwargs.setdefault("line_buffering", True) + super().__init__(LogStream(log_write, level), **kwargs) + + def __repr__(self): + return f"" + + def write(self, s): + if not isinstance(s, str): + raise TypeError( + f"write() argument must be str, not {type(s).__name__}") + + # In case `s` is a str subclass that writes itself to stdout or stderr + # when we call its methods, convert it to an actual str. + s = str.__str__(s) + + # We want to emit one log message per line, so split + # the string before sending it to the superclass. + for line in s.splitlines(keepends=True): + super().write(line) + + return len(s) + + +class LogStream(io.RawIOBase): + def __init__(self, log_write, level): + self.log_write = log_write + self.level = level + + def __repr__(self): + return f"" + + def writable(self): + return True + + def write(self, b): + if type(b) is not bytes: + try: + b = bytes(memoryview(b)) + except TypeError: + raise TypeError( + f"write() argument must be bytes-like, not {type(b).__name__}" + ) from None + + # Writing an empty string to the stream should have no effect. + if b: + # Encode null bytes using "modified UTF-8" to avoid truncating the + # message. This should not affect the return value, as the caller + # may be expecting it to match the length of the input. + self.log_write(self.level, b.replace(b"\x00", b"\xc0\x80")) + + return len(b) diff --git a/Lib/_colorize.py b/Lib/_colorize.py new file mode 100644 index 0000000000..70acfd4ad0 --- /dev/null +++ b/Lib/_colorize.py @@ -0,0 +1,67 @@ +import io +import os +import sys + +COLORIZE = True + + +class ANSIColors: + BOLD_GREEN = "\x1b[1;32m" + BOLD_MAGENTA = "\x1b[1;35m" + BOLD_RED = "\x1b[1;31m" + GREEN = "\x1b[32m" + GREY = "\x1b[90m" + MAGENTA = "\x1b[35m" + RED = "\x1b[31m" + RESET = "\x1b[0m" + YELLOW = "\x1b[33m" + + +NoColors = ANSIColors() + +for attr in dir(NoColors): + if not attr.startswith("__"): + setattr(NoColors, attr, "") + + +def get_colors(colorize: bool = False, *, file=None) -> ANSIColors: + if colorize or can_colorize(file=file): + return ANSIColors() + else: + return NoColors + + +def can_colorize(*, file=None) -> bool: + if file is None: + file = sys.stdout + + if not sys.flags.ignore_environment: + if os.environ.get("PYTHON_COLORS") == "0": + return False + if os.environ.get("PYTHON_COLORS") == "1": + return True + if os.environ.get("NO_COLOR"): + return False + if not COLORIZE: + return False + if os.environ.get("FORCE_COLOR"): + return True + if os.environ.get("TERM") == "dumb": + return False + + if not hasattr(file, "fileno"): + return False + + if sys.platform == "win32": + try: + import nt + + if not nt._supports_virtual_terminal(): + return False + except (ImportError, AttributeError): + return False + + try: + return os.isatty(file.fileno()) + except io.UnsupportedOperation: + return file.isatty() diff --git a/Lib/_dummy_os.py b/Lib/_dummy_os.py index 5bd5ec0a13..38e287af69 100644 --- a/Lib/_dummy_os.py +++ b/Lib/_dummy_os.py @@ -5,22 +5,30 @@ try: from os import * except ImportError: - import abc + import abc, sys def __getattr__(name): - raise OSError("no os specific module found") + if name in {"_path_normpath", "__path__"}: + raise AttributeError(name) + if name.isupper(): + return 0 + def dummy(*args, **kwargs): + import io + return io.UnsupportedOperation(f"{name}: no os specific module found") + dummy.__name__ = f"dummy_{name}" + return dummy - def _shim(): - import _dummy_os, sys - sys.modules['os'] = _dummy_os - sys.modules['os.path'] = _dummy_os.path + sys.modules['os'] = sys.modules['posix'] = sys.modules[__name__] import posixpath as path - import sys sys.modules['os.path'] = path del sys sep = path.sep + supports_dir_fd = set() + supports_effective_ids = set() + supports_fd = set() + supports_follow_symlinks = set() def fspath(path): diff --git a/Lib/_ios_support.py b/Lib/_ios_support.py new file mode 100644 index 0000000000..20467a7c2b --- /dev/null +++ b/Lib/_ios_support.py @@ -0,0 +1,71 @@ +import sys +try: + from ctypes import cdll, c_void_p, c_char_p, util +except ImportError: + # ctypes is an optional module. If it's not present, we're limited in what + # we can tell about the system, but we don't want to prevent the module + # from working. + print("ctypes isn't available; iOS system calls will not be available", file=sys.stderr) + objc = None +else: + # ctypes is available. Load the ObjC library, and wrap the objc_getClass, + # sel_registerName methods + lib = util.find_library("objc") + if lib is None: + # Failed to load the objc library + raise ImportError("ObjC runtime library couldn't be loaded") + + objc = cdll.LoadLibrary(lib) + objc.objc_getClass.restype = c_void_p + objc.objc_getClass.argtypes = [c_char_p] + objc.sel_registerName.restype = c_void_p + objc.sel_registerName.argtypes = [c_char_p] + + +def get_platform_ios(): + # Determine if this is a simulator using the multiarch value + is_simulator = sys.implementation._multiarch.endswith("simulator") + + # We can't use ctypes; abort + if not objc: + return None + + # Most of the methods return ObjC objects + objc.objc_msgSend.restype = c_void_p + # All the methods used have no arguments. + objc.objc_msgSend.argtypes = [c_void_p, c_void_p] + + # Equivalent of: + # device = [UIDevice currentDevice] + UIDevice = objc.objc_getClass(b"UIDevice") + SEL_currentDevice = objc.sel_registerName(b"currentDevice") + device = objc.objc_msgSend(UIDevice, SEL_currentDevice) + + # Equivalent of: + # device_systemVersion = [device systemVersion] + SEL_systemVersion = objc.sel_registerName(b"systemVersion") + device_systemVersion = objc.objc_msgSend(device, SEL_systemVersion) + + # Equivalent of: + # device_systemName = [device systemName] + SEL_systemName = objc.sel_registerName(b"systemName") + device_systemName = objc.objc_msgSend(device, SEL_systemName) + + # Equivalent of: + # device_model = [device model] + SEL_model = objc.sel_registerName(b"model") + device_model = objc.objc_msgSend(device, SEL_model) + + # UTF8String returns a const char*; + SEL_UTF8String = objc.sel_registerName(b"UTF8String") + objc.objc_msgSend.restype = c_char_p + + # Equivalent of: + # system = [device_systemName UTF8String] + # release = [device_systemVersion UTF8String] + # model = [device_model UTF8String] + system = objc.objc_msgSend(device_systemName, SEL_UTF8String).decode() + release = objc.objc_msgSend(device_systemVersion, SEL_UTF8String).decode() + model = objc.objc_msgSend(device_model, SEL_UTF8String).decode() + + return system, release, model, is_simulator diff --git a/Lib/_osx_support.py b/Lib/_osx_support.py index aa66c8b9f4..0cb064fcd7 100644 --- a/Lib/_osx_support.py +++ b/Lib/_osx_support.py @@ -507,6 +507,11 @@ def get_platform_osx(_config_vars, osname, release, machine): # MACOSX_DEPLOYMENT_TARGET. macver = _config_vars.get('MACOSX_DEPLOYMENT_TARGET', '') + if macver and '.' not in macver: + # Ensure that the version includes at least a major + # and minor version, even if MACOSX_DEPLOYMENT_TARGET + # is set to a single-label version like "14". + macver += '.0' macrelease = _get_system_version() or macver macver = macver or macrelease diff --git a/Lib/_py_abc.py b/Lib/_py_abc.py index c870ae9048..4780f9a619 100644 --- a/Lib/_py_abc.py +++ b/Lib/_py_abc.py @@ -33,6 +33,8 @@ class ABCMeta(type): _abc_invalidation_counter = 0 def __new__(mcls, name, bases, namespace, /, **kwargs): + # TODO: RUSTPYTHON remove this line (prevents duplicate bases) + bases = tuple(dict.fromkeys(bases)) cls = super().__new__(mcls, name, bases, namespace, **kwargs) # Compute set of abstract method names abstracts = {name @@ -98,8 +100,8 @@ def __instancecheck__(cls, instance): subtype = type(instance) if subtype is subclass: if (cls._abc_negative_cache_version == - ABCMeta._abc_invalidation_counter and - subclass in cls._abc_negative_cache): + ABCMeta._abc_invalidation_counter and + subclass in cls._abc_negative_cache): return False # Fall back to the subclass check. return cls.__subclasscheck__(subclass) diff --git a/Lib/_pycodecs.py b/Lib/_pycodecs.py index 0741504cc9..d0efa9ad6b 100644 --- a/Lib/_pycodecs.py +++ b/Lib/_pycodecs.py @@ -1086,11 +1086,13 @@ def charmapencode_output(c, mapping): rep = mapping[c] if isinstance(rep, int) or isinstance(rep, int): if rep < 256: - return rep + return [rep] else: raise TypeError("character mapping must be in range(256)") elif isinstance(rep, str): - return ord(rep) + return [ord(rep)] + elif isinstance(rep, bytes): + return rep elif rep == None: raise KeyError("character maps to ") else: @@ -1113,12 +1115,13 @@ def PyUnicode_EncodeCharmap(p, size, mapping='latin-1', errors='strict'): #/* try to encode it */ try: x = charmapencode_output(ord(p[inpos]), mapping) - res += [x] + res += x except KeyError: x = unicode_call_errorhandler(errors, "charmap", "character maps to ", p, inpos, inpos+1, False) try: - res += [charmapencode_output(ord(y), mapping) for y in x[0]] + for y in x[0]: + res += charmapencode_output(ord(y), mapping) except KeyError: raise UnicodeEncodeError("charmap", p, inpos, inpos+1, "character maps to ") diff --git a/Lib/_pylong.py b/Lib/_pylong.py new file mode 100644 index 0000000000..4970eb3fa6 --- /dev/null +++ b/Lib/_pylong.py @@ -0,0 +1,363 @@ +"""Python implementations of some algorithms for use by longobject.c. +The goal is to provide asymptotically faster algorithms that can be +used for operations on integers with many digits. In those cases, the +performance overhead of the Python implementation is not significant +since the asymptotic behavior is what dominates runtime. Functions +provided by this module should be considered private and not part of any +public API. + +Note: for ease of maintainability, please prefer clear code and avoid +"micro-optimizations". This module will only be imported and used for +integers with a huge number of digits. Saving a few microseconds with +tricky or non-obvious code is not worth it. For people looking for +maximum performance, they should use something like gmpy2.""" + +import re +import decimal +try: + import _decimal +except ImportError: + _decimal = None + +# A number of functions have this form, where `w` is a desired number of +# digits in base `base`: +# +# def inner(...w...): +# if w <= LIMIT: +# return something +# lo = w >> 1 +# hi = w - lo +# something involving base**lo, inner(...lo...), j, and inner(...hi...) +# figure out largest w needed +# result = inner(w) +# +# They all had some on-the-fly scheme to cache `base**lo` results for reuse. +# Power is costly. +# +# This routine aims to compute all amd only the needed powers in advance, as +# efficiently as reasonably possible. This isn't trivial, and all the +# on-the-fly methods did needless work in many cases. The driving code above +# changes to: +# +# figure out largest w needed +# mycache = compute_powers(w, base, LIMIT) +# result = inner(w) +# +# and `mycache[lo]` replaces `base**lo` in the inner function. +# +# While this does give minor speedups (a few percent at best), the primary +# intent is to simplify the functions using this, by eliminating the need for +# them to craft their own ad-hoc caching schemes. +def compute_powers(w, base, more_than, show=False): + seen = set() + need = set() + ws = {w} + while ws: + w = ws.pop() # any element is fine to use next + if w in seen or w <= more_than: + continue + seen.add(w) + lo = w >> 1 + # only _need_ lo here; some other path may, or may not, need hi + need.add(lo) + ws.add(lo) + if w & 1: + ws.add(lo + 1) + + d = {} + if not need: + return d + it = iter(sorted(need)) + first = next(it) + if show: + print("pow at", first) + d[first] = base ** first + for this in it: + if this - 1 in d: + if show: + print("* base at", this) + d[this] = d[this - 1] * base # cheap + else: + lo = this >> 1 + hi = this - lo + assert lo in d + if show: + print("square at", this) + # Multiplying a bigint by itself (same object!) is about twice + # as fast in CPython. + sq = d[lo] * d[lo] + if hi != lo: + assert hi == lo + 1 + if show: + print(" and * base") + sq *= base + d[this] = sq + return d + +_unbounded_dec_context = decimal.getcontext().copy() +_unbounded_dec_context.prec = decimal.MAX_PREC +_unbounded_dec_context.Emax = decimal.MAX_EMAX +_unbounded_dec_context.Emin = decimal.MIN_EMIN +_unbounded_dec_context.traps[decimal.Inexact] = 1 # sanity check + +def int_to_decimal(n): + """Asymptotically fast conversion of an 'int' to Decimal.""" + + # Function due to Tim Peters. See GH issue #90716 for details. + # https://github.com/python/cpython/issues/90716 + # + # The implementation in longobject.c of base conversion algorithms + # between power-of-2 and non-power-of-2 bases are quadratic time. + # This function implements a divide-and-conquer algorithm that is + # faster for large numbers. Builds an equal decimal.Decimal in a + # "clever" recursive way. If we want a string representation, we + # apply str to _that_. + + from decimal import Decimal as D + BITLIM = 200 + + # Don't bother caching the "lo" mask in this; the time to compute it is + # tiny compared to the multiply. + def inner(n, w): + if w <= BITLIM: + return D(n) + w2 = w >> 1 + hi = n >> w2 + lo = n & ((1 << w2) - 1) + return inner(lo, w2) + inner(hi, w - w2) * w2pow[w2] + + with decimal.localcontext(_unbounded_dec_context): + nbits = n.bit_length() + w2pow = compute_powers(nbits, D(2), BITLIM) + if n < 0: + negate = True + n = -n + else: + negate = False + result = inner(n, nbits) + if negate: + result = -result + return result + +def int_to_decimal_string(n): + """Asymptotically fast conversion of an 'int' to a decimal string.""" + w = n.bit_length() + if w > 450_000 and _decimal is not None: + # It is only usable with the C decimal implementation. + # _pydecimal.py calls str() on very large integers, which in its + # turn calls int_to_decimal_string(), causing very deep recursion. + return str(int_to_decimal(n)) + + # Fallback algorithm for the case when the C decimal module isn't + # available. This algorithm is asymptotically worse than the algorithm + # using the decimal module, but better than the quadratic time + # implementation in longobject.c. + + DIGLIM = 1000 + def inner(n, w): + if w <= DIGLIM: + return str(n) + w2 = w >> 1 + hi, lo = divmod(n, pow10[w2]) + return inner(hi, w - w2) + inner(lo, w2).zfill(w2) + + # The estimation of the number of decimal digits. + # There is no harm in small error. If we guess too large, there may + # be leading 0's that need to be stripped. If we guess too small, we + # may need to call str() recursively for the remaining highest digits, + # which can still potentially be a large integer. This is manifested + # only if the number has way more than 10**15 digits, that exceeds + # the 52-bit physical address limit in both Intel64 and AMD64. + w = int(w * 0.3010299956639812 + 1) # log10(2) + pow10 = compute_powers(w, 5, DIGLIM) + for k, v in pow10.items(): + pow10[k] = v << k # 5**k << k == 5**k * 2**k == 10**k + if n < 0: + n = -n + sign = '-' + else: + sign = '' + s = inner(n, w) + if s[0] == '0' and n: + # If our guess of w is too large, there may be leading 0's that + # need to be stripped. + s = s.lstrip('0') + return sign + s + +def _str_to_int_inner(s): + """Asymptotically fast conversion of a 'str' to an 'int'.""" + + # Function due to Bjorn Martinsson. See GH issue #90716 for details. + # https://github.com/python/cpython/issues/90716 + # + # The implementation in longobject.c of base conversion algorithms + # between power-of-2 and non-power-of-2 bases are quadratic time. + # This function implements a divide-and-conquer algorithm making use + # of Python's built in big int multiplication. Since Python uses the + # Karatsuba algorithm for multiplication, the time complexity + # of this function is O(len(s)**1.58). + + DIGLIM = 2048 + + def inner(a, b): + if b - a <= DIGLIM: + return int(s[a:b]) + mid = (a + b + 1) >> 1 + return (inner(mid, b) + + ((inner(a, mid) * w5pow[b - mid]) + << (b - mid))) + + w5pow = compute_powers(len(s), 5, DIGLIM) + return inner(0, len(s)) + + +def int_from_string(s): + """Asymptotically fast version of PyLong_FromString(), conversion + of a string of decimal digits into an 'int'.""" + # PyLong_FromString() has already removed leading +/-, checked for invalid + # use of underscore characters, checked that string consists of only digits + # and underscores, and stripped leading whitespace. The input can still + # contain underscores and have trailing whitespace. + s = s.rstrip().replace('_', '') + return _str_to_int_inner(s) + +def str_to_int(s): + """Asymptotically fast version of decimal string to 'int' conversion.""" + # FIXME: this doesn't support the full syntax that int() supports. + m = re.match(r'\s*([+-]?)([0-9_]+)\s*', s) + if not m: + raise ValueError('invalid literal for int() with base 10') + v = int_from_string(m.group(2)) + if m.group(1) == '-': + v = -v + return v + + +# Fast integer division, based on code from Mark Dickinson, fast_div.py +# GH-47701. Additional refinements and optimizations by Bjorn Martinsson. The +# algorithm is due to Burnikel and Ziegler, in their paper "Fast Recursive +# Division". + +_DIV_LIMIT = 4000 + + +def _div2n1n(a, b, n): + """Divide a 2n-bit nonnegative integer a by an n-bit positive integer + b, using a recursive divide-and-conquer algorithm. + + Inputs: + n is a positive integer + b is a positive integer with exactly n bits + a is a nonnegative integer such that a < 2**n * b + + Output: + (q, r) such that a = b*q+r and 0 <= r < b. + + """ + if a.bit_length() - n <= _DIV_LIMIT: + return divmod(a, b) + pad = n & 1 + if pad: + a <<= 1 + b <<= 1 + n += 1 + half_n = n >> 1 + mask = (1 << half_n) - 1 + b1, b2 = b >> half_n, b & mask + q1, r = _div3n2n(a >> n, (a >> half_n) & mask, b, b1, b2, half_n) + q2, r = _div3n2n(r, a & mask, b, b1, b2, half_n) + if pad: + r >>= 1 + return q1 << half_n | q2, r + + +def _div3n2n(a12, a3, b, b1, b2, n): + """Helper function for _div2n1n; not intended to be called directly.""" + if a12 >> n == b1: + q, r = (1 << n) - 1, a12 - (b1 << n) + b1 + else: + q, r = _div2n1n(a12, b1, n) + r = (r << n | a3) - q * b2 + while r < 0: + q -= 1 + r += b + return q, r + + +def _int2digits(a, n): + """Decompose non-negative int a into base 2**n + + Input: + a is a non-negative integer + + Output: + List of the digits of a in base 2**n in little-endian order, + meaning the most significant digit is last. The most + significant digit is guaranteed to be non-zero. + If a is 0 then the output is an empty list. + + """ + a_digits = [0] * ((a.bit_length() + n - 1) // n) + + def inner(x, L, R): + if L + 1 == R: + a_digits[L] = x + return + mid = (L + R) >> 1 + shift = (mid - L) * n + upper = x >> shift + lower = x ^ (upper << shift) + inner(lower, L, mid) + inner(upper, mid, R) + + if a: + inner(a, 0, len(a_digits)) + return a_digits + + +def _digits2int(digits, n): + """Combine base-2**n digits into an int. This function is the + inverse of `_int2digits`. For more details, see _int2digits. + """ + + def inner(L, R): + if L + 1 == R: + return digits[L] + mid = (L + R) >> 1 + shift = (mid - L) * n + return (inner(mid, R) << shift) + inner(L, mid) + + return inner(0, len(digits)) if digits else 0 + + +def _divmod_pos(a, b): + """Divide a non-negative integer a by a positive integer b, giving + quotient and remainder.""" + # Use grade-school algorithm in base 2**n, n = nbits(b) + n = b.bit_length() + a_digits = _int2digits(a, n) + + r = 0 + q_digits = [] + for a_digit in reversed(a_digits): + q_digit, r = _div2n1n((r << n) + a_digit, b, n) + q_digits.append(q_digit) + q_digits.reverse() + q = _digits2int(q_digits, n) + return q, r + + +def int_divmod(a, b): + """Asymptotically fast replacement for divmod, for 'int'. + Its time complexity is O(n**1.58), where n = #bits(a) + #bits(b). + """ + if b == 0: + raise ZeroDivisionError + elif b < 0: + q, r = int_divmod(-a, -b) + return q, -r + elif a < 0: + q, r = int_divmod(~a, b) + return ~q, b + ~r + else: + return _divmod_pos(a, b) diff --git a/Lib/_pyrepl/__init__.py b/Lib/_pyrepl/__init__.py new file mode 100644 index 0000000000..1693cbd0b9 --- /dev/null +++ b/Lib/_pyrepl/__init__.py @@ -0,0 +1,19 @@ +# Copyright 2000-2008 Michael Hudson-Doyle +# Armin Rigo +# +# All Rights Reserved +# +# +# Permission to use, copy, modify, and distribute this software and +# its documentation for any purpose is hereby granted without fee, +# provided that the above copyright notice appear in all copies and +# that both that copyright notice and this permission notice appear in +# supporting documentation. +# +# THE AUTHOR MICHAEL HUDSON DISCLAIMS ALL WARRANTIES WITH REGARD TO +# THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +# AND FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, +# INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER +# RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF +# CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN +# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. diff --git a/Lib/_pyrepl/__main__.py b/Lib/_pyrepl/__main__.py new file mode 100644 index 0000000000..3fa992eee8 --- /dev/null +++ b/Lib/_pyrepl/__main__.py @@ -0,0 +1,6 @@ +# Important: don't add things to this module, as they will end up in the REPL's +# default globals. Use _pyrepl.main instead. + +if __name__ == "__main__": + from .main import interactive_console as __pyrepl_interactive_console + __pyrepl_interactive_console() diff --git a/Lib/_pyrepl/_minimal_curses.py b/Lib/_pyrepl/_minimal_curses.py new file mode 100644 index 0000000000..d884f880f5 --- /dev/null +++ b/Lib/_pyrepl/_minimal_curses.py @@ -0,0 +1,68 @@ +"""Minimal '_curses' module, the low-level interface for curses module +which is not meant to be used directly. + +Based on ctypes. It's too incomplete to be really called '_curses', so +to use it, you have to import it and stick it in sys.modules['_curses'] +manually. + +Note that there is also a built-in module _minimal_curses which will +hide this one if compiled in. +""" + +import ctypes +import ctypes.util + + +class error(Exception): + pass + + +def _find_clib() -> str: + trylibs = ["ncursesw", "ncurses", "curses"] + + for lib in trylibs: + path = ctypes.util.find_library(lib) + if path: + return path + raise ModuleNotFoundError("curses library not found", name="_pyrepl._minimal_curses") + + +_clibpath = _find_clib() +clib = ctypes.cdll.LoadLibrary(_clibpath) + +clib.setupterm.argtypes = [ctypes.c_char_p, ctypes.c_int, ctypes.POINTER(ctypes.c_int)] +clib.setupterm.restype = ctypes.c_int + +clib.tigetstr.argtypes = [ctypes.c_char_p] +clib.tigetstr.restype = ctypes.c_ssize_t + +clib.tparm.argtypes = [ctypes.c_char_p] + 9 * [ctypes.c_int] # type: ignore[operator] +clib.tparm.restype = ctypes.c_char_p + +OK = 0 +ERR = -1 + +# ____________________________________________________________ + + +def setupterm(termstr, fd): + err = ctypes.c_int(0) + result = clib.setupterm(termstr, fd, ctypes.byref(err)) + if result == ERR: + raise error("setupterm() failed (err=%d)" % err.value) + + +def tigetstr(cap): + if not isinstance(cap, bytes): + cap = cap.encode("ascii") + result = clib.tigetstr(cap) + if result == ERR: + return None + return ctypes.cast(result, ctypes.c_char_p).value + + +def tparm(str, i1=0, i2=0, i3=0, i4=0, i5=0, i6=0, i7=0, i8=0, i9=0): + result = clib.tparm(str, i1, i2, i3, i4, i5, i6, i7, i8, i9) + if result is None: + raise error("tparm() returned NULL") + return result diff --git a/Lib/_pyrepl/_threading_handler.py b/Lib/_pyrepl/_threading_handler.py new file mode 100644 index 0000000000..82f5e8650a --- /dev/null +++ b/Lib/_pyrepl/_threading_handler.py @@ -0,0 +1,74 @@ +from __future__ import annotations + +from dataclasses import dataclass, field +import traceback + + +TYPE_CHECKING = False +if TYPE_CHECKING: + from threading import Thread + from types import TracebackType + from typing import Protocol + + class ExceptHookArgs(Protocol): + @property + def exc_type(self) -> type[BaseException]: ... + @property + def exc_value(self) -> BaseException | None: ... + @property + def exc_traceback(self) -> TracebackType | None: ... + @property + def thread(self) -> Thread | None: ... + + class ShowExceptions(Protocol): + def __call__(self) -> int: ... + def add(self, s: str) -> None: ... + + from .reader import Reader + + +def install_threading_hook(reader: Reader) -> None: + import threading + + @dataclass + class ExceptHookHandler: + lock: threading.Lock = field(default_factory=threading.Lock) + messages: list[str] = field(default_factory=list) + + def show(self) -> int: + count = 0 + with self.lock: + if not self.messages: + return 0 + reader.restore() + for tb in self.messages: + count += 1 + if tb: + print(tb) + self.messages.clear() + reader.scheduled_commands.append("ctrl-c") + reader.prepare() + return count + + def add(self, s: str) -> None: + with self.lock: + self.messages.append(s) + + def exception(self, args: ExceptHookArgs) -> None: + lines = traceback.format_exception( + args.exc_type, + args.exc_value, + args.exc_traceback, + colorize=reader.can_colorize, + ) # type: ignore[call-overload] + pre = f"\nException in {args.thread.name}:\n" if args.thread else "\n" + tb = pre + "".join(lines) + self.add(tb) + + def __call__(self) -> int: + return self.show() + + + handler = ExceptHookHandler() + reader.threading_hook = handler + threading.excepthook = handler.exception diff --git a/Lib/_pyrepl/commands.py b/Lib/_pyrepl/commands.py new file mode 100644 index 0000000000..503ca1da32 --- /dev/null +++ b/Lib/_pyrepl/commands.py @@ -0,0 +1,489 @@ +# Copyright 2000-2010 Michael Hudson-Doyle +# Antonio Cuni +# Armin Rigo +# +# All Rights Reserved +# +# +# Permission to use, copy, modify, and distribute this software and +# its documentation for any purpose is hereby granted without fee, +# provided that the above copyright notice appear in all copies and +# that both that copyright notice and this permission notice appear in +# supporting documentation. +# +# THE AUTHOR MICHAEL HUDSON DISCLAIMS ALL WARRANTIES WITH REGARD TO +# THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +# AND FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, +# INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER +# RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF +# CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN +# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +from __future__ import annotations +import os + +# Categories of actions: +# killing +# yanking +# motion +# editing +# history +# finishing +# [completion] + + +# types +if False: + from .historical_reader import HistoricalReader + + +class Command: + finish: bool = False + kills_digit_arg: bool = True + + def __init__( + self, reader: HistoricalReader, event_name: str, event: list[str] + ) -> None: + # Reader should really be "any reader" but there's too much usage of + # HistoricalReader methods and fields in the code below for us to + # refactor at the moment. + + self.reader = reader + self.event = event + self.event_name = event_name + + def do(self) -> None: + pass + + +class KillCommand(Command): + def kill_range(self, start: int, end: int) -> None: + if start == end: + return + r = self.reader + b = r.buffer + text = b[start:end] + del b[start:end] + if is_kill(r.last_command): + if start < r.pos: + r.kill_ring[-1] = text + r.kill_ring[-1] + else: + r.kill_ring[-1] = r.kill_ring[-1] + text + else: + r.kill_ring.append(text) + r.pos = start + r.dirty = True + + +class YankCommand(Command): + pass + + +class MotionCommand(Command): + pass + + +class EditCommand(Command): + pass + + +class FinishCommand(Command): + finish = True + pass + + +def is_kill(command: type[Command] | None) -> bool: + return command is not None and issubclass(command, KillCommand) + + +def is_yank(command: type[Command] | None) -> bool: + return command is not None and issubclass(command, YankCommand) + + +# etc + + +class digit_arg(Command): + kills_digit_arg = False + + def do(self) -> None: + r = self.reader + c = self.event[-1] + if c == "-": + if r.arg is not None: + r.arg = -r.arg + else: + r.arg = -1 + else: + d = int(c) + if r.arg is None: + r.arg = d + else: + if r.arg < 0: + r.arg = 10 * r.arg - d + else: + r.arg = 10 * r.arg + d + r.dirty = True + + +class clear_screen(Command): + def do(self) -> None: + r = self.reader + r.console.clear() + r.dirty = True + + +class refresh(Command): + def do(self) -> None: + self.reader.dirty = True + + +class repaint(Command): + def do(self) -> None: + self.reader.dirty = True + self.reader.console.repaint() + + +class kill_line(KillCommand): + def do(self) -> None: + r = self.reader + b = r.buffer + eol = r.eol() + for c in b[r.pos : eol]: + if not c.isspace(): + self.kill_range(r.pos, eol) + return + else: + self.kill_range(r.pos, eol + 1) + + +class unix_line_discard(KillCommand): + def do(self) -> None: + r = self.reader + self.kill_range(r.bol(), r.pos) + + +class unix_word_rubout(KillCommand): + def do(self) -> None: + r = self.reader + for i in range(r.get_arg()): + self.kill_range(r.bow(), r.pos) + + +class kill_word(KillCommand): + def do(self) -> None: + r = self.reader + for i in range(r.get_arg()): + self.kill_range(r.pos, r.eow()) + + +class backward_kill_word(KillCommand): + def do(self) -> None: + r = self.reader + for i in range(r.get_arg()): + self.kill_range(r.bow(), r.pos) + + +class yank(YankCommand): + def do(self) -> None: + r = self.reader + if not r.kill_ring: + r.error("nothing to yank") + return + r.insert(r.kill_ring[-1]) + + +class yank_pop(YankCommand): + def do(self) -> None: + r = self.reader + b = r.buffer + if not r.kill_ring: + r.error("nothing to yank") + return + if not is_yank(r.last_command): + r.error("previous command was not a yank") + return + repl = len(r.kill_ring[-1]) + r.kill_ring.insert(0, r.kill_ring.pop()) + t = r.kill_ring[-1] + b[r.pos - repl : r.pos] = t + r.pos = r.pos - repl + len(t) + r.dirty = True + + +class interrupt(FinishCommand): + def do(self) -> None: + import signal + + self.reader.console.finish() + self.reader.finish() + os.kill(os.getpid(), signal.SIGINT) + + +class ctrl_c(Command): + def do(self) -> None: + self.reader.console.finish() + self.reader.finish() + raise KeyboardInterrupt + + +class suspend(Command): + def do(self) -> None: + import signal + + r = self.reader + p = r.pos + r.console.finish() + os.kill(os.getpid(), signal.SIGSTOP) + ## this should probably be done + ## in a handler for SIGCONT? + r.console.prepare() + r.pos = p + # r.posxy = 0, 0 # XXX this is invalid + r.dirty = True + r.console.screen = [] + + +class up(MotionCommand): + def do(self) -> None: + r = self.reader + for _ in range(r.get_arg()): + x, y = r.pos2xy() + new_y = y - 1 + + if r.bol() == 0: + if r.historyi > 0: + r.select_item(r.historyi - 1) + return + r.pos = 0 + r.error("start of buffer") + return + + if ( + x + > ( + new_x := r.max_column(new_y) + ) # we're past the end of the previous line + or x == r.max_column(y) + and any( + not i.isspace() for i in r.buffer[r.bol() :] + ) # move between eols + ): + x = new_x + + r.setpos_from_xy(x, new_y) + + +class down(MotionCommand): + def do(self) -> None: + r = self.reader + b = r.buffer + for _ in range(r.get_arg()): + x, y = r.pos2xy() + new_y = y + 1 + + if r.eol() == len(b): + if r.historyi < len(r.history): + r.select_item(r.historyi + 1) + r.pos = r.eol(0) + return + r.pos = len(b) + r.error("end of buffer") + return + + if ( + x + > ( + new_x := r.max_column(new_y) + ) # we're past the end of the previous line + or x == r.max_column(y) + and any( + not i.isspace() for i in r.buffer[r.bol() :] + ) # move between eols + ): + x = new_x + + r.setpos_from_xy(x, new_y) + + +class left(MotionCommand): + def do(self) -> None: + r = self.reader + for _ in range(r.get_arg()): + p = r.pos - 1 + if p >= 0: + r.pos = p + else: + self.reader.error("start of buffer") + + +class right(MotionCommand): + def do(self) -> None: + r = self.reader + b = r.buffer + for _ in range(r.get_arg()): + p = r.pos + 1 + if p <= len(b): + r.pos = p + else: + self.reader.error("end of buffer") + + +class beginning_of_line(MotionCommand): + def do(self) -> None: + self.reader.pos = self.reader.bol() + + +class end_of_line(MotionCommand): + def do(self) -> None: + self.reader.pos = self.reader.eol() + + +class home(MotionCommand): + def do(self) -> None: + self.reader.pos = 0 + + +class end(MotionCommand): + def do(self) -> None: + self.reader.pos = len(self.reader.buffer) + + +class forward_word(MotionCommand): + def do(self) -> None: + r = self.reader + for i in range(r.get_arg()): + r.pos = r.eow() + + +class backward_word(MotionCommand): + def do(self) -> None: + r = self.reader + for i in range(r.get_arg()): + r.pos = r.bow() + + +class self_insert(EditCommand): + def do(self) -> None: + r = self.reader + text = self.event * r.get_arg() + r.insert(text) + + +class insert_nl(EditCommand): + def do(self) -> None: + r = self.reader + r.insert("\n" * r.get_arg()) + + +class transpose_characters(EditCommand): + def do(self) -> None: + r = self.reader + b = r.buffer + s = r.pos - 1 + if s < 0: + r.error("cannot transpose at start of buffer") + else: + if s == len(b): + s -= 1 + t = min(s + r.get_arg(), len(b) - 1) + c = b[s] + del b[s] + b.insert(t, c) + r.pos = t + r.dirty = True + + +class backspace(EditCommand): + def do(self) -> None: + r = self.reader + b = r.buffer + for i in range(r.get_arg()): + if r.pos > 0: + r.pos -= 1 + del b[r.pos] + r.dirty = True + else: + self.reader.error("can't backspace at start") + + +class delete(EditCommand): + def do(self) -> None: + r = self.reader + b = r.buffer + if ( + r.pos == 0 + and len(b) == 0 # this is something of a hack + and self.event[-1] == "\004" + ): + r.update_screen() + r.console.finish() + raise EOFError + for i in range(r.get_arg()): + if r.pos != len(b): + del b[r.pos] + r.dirty = True + else: + self.reader.error("end of buffer") + + +class accept(FinishCommand): + def do(self) -> None: + pass + + +class help(Command): + def do(self) -> None: + import _sitebuiltins + + with self.reader.suspend(): + self.reader.msg = _sitebuiltins._Helper()() # type: ignore[assignment, call-arg] + + +class invalid_key(Command): + def do(self) -> None: + pending = self.reader.console.getpending() + s = "".join(self.event) + pending.data + self.reader.error("`%r' not bound" % s) + + +class invalid_command(Command): + def do(self) -> None: + s = self.event_name + self.reader.error("command `%s' not known" % s) + + +class show_history(Command): + def do(self) -> None: + from .pager import get_pager + from site import gethistoryfile # type: ignore[attr-defined] + + history = os.linesep.join(self.reader.history[:]) + self.reader.console.restore() + pager = get_pager() + pager(history, gethistoryfile()) + self.reader.console.prepare() + + # We need to copy over the state so that it's consistent between + # console and reader, and console does not overwrite/append stuff + self.reader.console.screen = self.reader.screen.copy() + self.reader.console.posxy = self.reader.cxy + + +class paste_mode(Command): + + def do(self) -> None: + self.reader.paste_mode = not self.reader.paste_mode + self.reader.dirty = True + + +class enable_bracketed_paste(Command): + def do(self) -> None: + self.reader.paste_mode = True + self.reader.in_bracketed_paste = True + +class disable_bracketed_paste(Command): + def do(self) -> None: + self.reader.paste_mode = False + self.reader.in_bracketed_paste = False + self.reader.dirty = True diff --git a/Lib/_pyrepl/completing_reader.py b/Lib/_pyrepl/completing_reader.py new file mode 100644 index 0000000000..9a005281da --- /dev/null +++ b/Lib/_pyrepl/completing_reader.py @@ -0,0 +1,295 @@ +# Copyright 2000-2010 Michael Hudson-Doyle +# Antonio Cuni +# +# All Rights Reserved +# +# +# Permission to use, copy, modify, and distribute this software and +# its documentation for any purpose is hereby granted without fee, +# provided that the above copyright notice appear in all copies and +# that both that copyright notice and this permission notice appear in +# supporting documentation. +# +# THE AUTHOR MICHAEL HUDSON DISCLAIMS ALL WARRANTIES WITH REGARD TO +# THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +# AND FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, +# INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER +# RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF +# CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN +# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +from __future__ import annotations + +from dataclasses import dataclass, field + +import re +from . import commands, console, reader +from .reader import Reader + + +# types +Command = commands.Command +if False: + from .types import KeySpec, CommandName + + +def prefix(wordlist: list[str], j: int = 0) -> str: + d = {} + i = j + try: + while 1: + for word in wordlist: + d[word[i]] = 1 + if len(d) > 1: + return wordlist[0][j:i] + i += 1 + d = {} + except IndexError: + return wordlist[0][j:i] + return "" + + +STRIPCOLOR_REGEX = re.compile(r"\x1B\[([0-9]{1,3}(;[0-9]{1,2})?)?[m|K]") + +def stripcolor(s: str) -> str: + return STRIPCOLOR_REGEX.sub('', s) + + +def real_len(s: str) -> int: + return len(stripcolor(s)) + + +def left_align(s: str, maxlen: int) -> str: + stripped = stripcolor(s) + if len(stripped) > maxlen: + # too bad, we remove the color + return stripped[:maxlen] + padding = maxlen - len(stripped) + return s + ' '*padding + + +def build_menu( + cons: console.Console, + wordlist: list[str], + start: int, + use_brackets: bool, + sort_in_column: bool, +) -> tuple[list[str], int]: + if use_brackets: + item = "[ %s ]" + padding = 4 + else: + item = "%s " + padding = 2 + maxlen = min(max(map(real_len, wordlist)), cons.width - padding) + cols = int(cons.width / (maxlen + padding)) + rows = int((len(wordlist) - 1)/cols + 1) + + if sort_in_column: + # sort_in_column=False (default) sort_in_column=True + # A B C A D G + # D E F B E + # G C F + # + # "fill" the table with empty words, so we always have the same amout + # of rows for each column + missing = cols*rows - len(wordlist) + wordlist = wordlist + ['']*missing + indexes = [(i % cols) * rows + i // cols for i in range(len(wordlist))] + wordlist = [wordlist[i] for i in indexes] + menu = [] + i = start + for r in range(rows): + row = [] + for col in range(cols): + row.append(item % left_align(wordlist[i], maxlen)) + i += 1 + if i >= len(wordlist): + break + menu.append(''.join(row)) + if i >= len(wordlist): + i = 0 + break + if r + 5 > cons.height: + menu.append(" %d more... " % (len(wordlist) - i)) + break + return menu, i + +# this gets somewhat user interface-y, and as a result the logic gets +# very convoluted. +# +# To summarise the summary of the summary:- people are a problem. +# -- The Hitch-Hikers Guide to the Galaxy, Episode 12 + +#### Desired behaviour of the completions commands. +# the considerations are: +# (1) how many completions are possible +# (2) whether the last command was a completion +# (3) if we can assume that the completer is going to return the same set of +# completions: this is controlled by the ``assume_immutable_completions`` +# variable on the reader, which is True by default to match the historical +# behaviour of pyrepl, but e.g. False in the ReadlineAlikeReader to match +# more closely readline's semantics (this is needed e.g. by +# fancycompleter) +# +# if there's no possible completion, beep at the user and point this out. +# this is easy. +# +# if there's only one possible completion, stick it in. if the last thing +# user did was a completion, point out that he isn't getting anywhere, but +# only if the ``assume_immutable_completions`` is True. +# +# now it gets complicated. +# +# for the first press of a completion key: +# if there's a common prefix, stick it in. + +# irrespective of whether anything got stuck in, if the word is now +# complete, show the "complete but not unique" message + +# if there's no common prefix and if the word is not now complete, +# beep. + +# common prefix -> yes no +# word complete \/ +# yes "cbnu" "cbnu" +# no - beep + +# for the second bang on the completion key +# there will necessarily be no common prefix +# show a menu of the choices. + +# for subsequent bangs, rotate the menu around (if there are sufficient +# choices). + + +class complete(commands.Command): + def do(self) -> None: + r: CompletingReader + r = self.reader # type: ignore[assignment] + last_is_completer = r.last_command_is(self.__class__) + immutable_completions = r.assume_immutable_completions + completions_unchangable = last_is_completer and immutable_completions + stem = r.get_stem() + if not completions_unchangable: + r.cmpltn_menu_choices = r.get_completions(stem) + + completions = r.cmpltn_menu_choices + if not completions: + r.error("no matches") + elif len(completions) == 1: + if completions_unchangable and len(completions[0]) == len(stem): + r.msg = "[ sole completion ]" + r.dirty = True + r.insert(completions[0][len(stem):]) + else: + p = prefix(completions, len(stem)) + if p: + r.insert(p) + if last_is_completer: + r.cmpltn_menu_visible = True + r.cmpltn_message_visible = False + r.cmpltn_menu, r.cmpltn_menu_end = build_menu( + r.console, completions, r.cmpltn_menu_end, + r.use_brackets, r.sort_in_column) + r.dirty = True + elif not r.cmpltn_menu_visible: + r.cmpltn_message_visible = True + if stem + p in completions: + r.msg = "[ complete but not unique ]" + r.dirty = True + else: + r.msg = "[ not unique ]" + r.dirty = True + + +class self_insert(commands.self_insert): + def do(self) -> None: + r: CompletingReader + r = self.reader # type: ignore[assignment] + + commands.self_insert.do(self) + if r.cmpltn_menu_visible: + stem = r.get_stem() + if len(stem) < 1: + r.cmpltn_reset() + else: + completions = [w for w in r.cmpltn_menu_choices + if w.startswith(stem)] + if completions: + r.cmpltn_menu, r.cmpltn_menu_end = build_menu( + r.console, completions, 0, + r.use_brackets, r.sort_in_column) + else: + r.cmpltn_reset() + + +@dataclass +class CompletingReader(Reader): + """Adds completion support""" + + ### Class variables + # see the comment for the complete command + assume_immutable_completions = True + use_brackets = True # display completions inside [] + sort_in_column = False + + ### Instance variables + cmpltn_menu: list[str] = field(init=False) + cmpltn_menu_visible: bool = field(init=False) + cmpltn_message_visible: bool = field(init=False) + cmpltn_menu_end: int = field(init=False) + cmpltn_menu_choices: list[str] = field(init=False) + + def __post_init__(self) -> None: + super().__post_init__() + self.cmpltn_reset() + for c in (complete, self_insert): + self.commands[c.__name__] = c + self.commands[c.__name__.replace('_', '-')] = c + + def collect_keymap(self) -> tuple[tuple[KeySpec, CommandName], ...]: + return super().collect_keymap() + ( + (r'\t', 'complete'),) + + def after_command(self, cmd: Command) -> None: + super().after_command(cmd) + if not isinstance(cmd, (complete, self_insert)): + self.cmpltn_reset() + + def calc_screen(self) -> list[str]: + screen = super().calc_screen() + if self.cmpltn_menu_visible: + # We display the completions menu below the current prompt + ly = self.lxy[1] + 1 + screen[ly:ly] = self.cmpltn_menu + # If we're not in the middle of multiline edit, don't append to screeninfo + # since that screws up the position calculation in pos2xy function. + # This is a hack to prevent the cursor jumping + # into the completions menu when pressing left or down arrow. + if self.pos != len(self.buffer): + self.screeninfo[ly:ly] = [(0, [])]*len(self.cmpltn_menu) + return screen + + def finish(self) -> None: + super().finish() + self.cmpltn_reset() + + def cmpltn_reset(self) -> None: + self.cmpltn_menu = [] + self.cmpltn_menu_visible = False + self.cmpltn_message_visible = False + self.cmpltn_menu_end = 0 + self.cmpltn_menu_choices = [] + + def get_stem(self) -> str: + st = self.syntax_table + SW = reader.SYNTAX_WORD + b = self.buffer + p = self.pos - 1 + while p >= 0 and st.get(b[p], SW) == SW: + p -= 1 + return ''.join(b[p+1:self.pos]) + + def get_completions(self, stem: str) -> list[str]: + return [] diff --git a/Lib/_pyrepl/console.py b/Lib/_pyrepl/console.py new file mode 100644 index 0000000000..0d78890b4f --- /dev/null +++ b/Lib/_pyrepl/console.py @@ -0,0 +1,213 @@ +# Copyright 2000-2004 Michael Hudson-Doyle +# +# All Rights Reserved +# +# +# Permission to use, copy, modify, and distribute this software and +# its documentation for any purpose is hereby granted without fee, +# provided that the above copyright notice appear in all copies and +# that both that copyright notice and this permission notice appear in +# supporting documentation. +# +# THE AUTHOR MICHAEL HUDSON DISCLAIMS ALL WARRANTIES WITH REGARD TO +# THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +# AND FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, +# INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER +# RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF +# CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN +# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +from __future__ import annotations + +import _colorize # type: ignore[import-not-found] + +from abc import ABC, abstractmethod +import ast +import code +from dataclasses import dataclass, field +import os.path +import sys + + +TYPE_CHECKING = False + +if TYPE_CHECKING: + from typing import IO + from typing import Callable + + +@dataclass +class Event: + evt: str + data: str + raw: bytes = b"" + + +@dataclass +class Console(ABC): + posxy: tuple[int, int] + screen: list[str] = field(default_factory=list) + height: int = 25 + width: int = 80 + + def __init__( + self, + f_in: IO[bytes] | int = 0, + f_out: IO[bytes] | int = 1, + term: str = "", + encoding: str = "", + ): + self.encoding = encoding or sys.getdefaultencoding() + + if isinstance(f_in, int): + self.input_fd = f_in + else: + self.input_fd = f_in.fileno() + + if isinstance(f_out, int): + self.output_fd = f_out + else: + self.output_fd = f_out.fileno() + + @abstractmethod + def refresh(self, screen: list[str], xy: tuple[int, int]) -> None: ... + + @abstractmethod + def prepare(self) -> None: ... + + @abstractmethod + def restore(self) -> None: ... + + @abstractmethod + def move_cursor(self, x: int, y: int) -> None: ... + + @abstractmethod + def set_cursor_vis(self, visible: bool) -> None: ... + + @abstractmethod + def getheightwidth(self) -> tuple[int, int]: + """Return (height, width) where height and width are the height + and width of the terminal window in characters.""" + ... + + @abstractmethod + def get_event(self, block: bool = True) -> Event | None: + """Return an Event instance. Returns None if |block| is false + and there is no event pending, otherwise waits for the + completion of an event.""" + ... + + @abstractmethod + def push_char(self, char: int | bytes) -> None: + """ + Push a character to the console event queue. + """ + ... + + @abstractmethod + def beep(self) -> None: ... + + @abstractmethod + def clear(self) -> None: + """Wipe the screen""" + ... + + @abstractmethod + def finish(self) -> None: + """Move the cursor to the end of the display and otherwise get + ready for end. XXX could be merged with restore? Hmm.""" + ... + + @abstractmethod + def flushoutput(self) -> None: + """Flush all output to the screen (assuming there's some + buffering going on somewhere).""" + ... + + @abstractmethod + def forgetinput(self) -> None: + """Forget all pending, but not yet processed input.""" + ... + + @abstractmethod + def getpending(self) -> Event: + """Return the characters that have been typed but not yet + processed.""" + ... + + @abstractmethod + def wait(self, timeout: float | None) -> bool: + """Wait for an event. The return value is True if an event is + available, False if the timeout has been reached. If timeout is + None, wait forever. The timeout is in milliseconds.""" + ... + + @property + def input_hook(self) -> Callable[[], int] | None: + """Returns the current input hook.""" + ... + + @abstractmethod + def repaint(self) -> None: ... + + +class InteractiveColoredConsole(code.InteractiveConsole): + def __init__( + self, + locals: dict[str, object] | None = None, + filename: str = "", + *, + local_exit: bool = False, + ) -> None: + super().__init__(locals=locals, filename=filename, local_exit=local_exit) # type: ignore[call-arg] + self.can_colorize = _colorize.can_colorize() + + def showsyntaxerror(self, filename=None, **kwargs): + super().showsyntaxerror(filename=filename, **kwargs) + + def _excepthook(self, typ, value, tb): + import traceback + lines = traceback.format_exception( + typ, value, tb, + colorize=self.can_colorize, + limit=traceback.BUILTIN_EXCEPTION_LIMIT) + self.write(''.join(lines)) + + def runsource(self, source, filename="", symbol="single"): + try: + tree = self.compile.compiler( + source, + filename, + "exec", + ast.PyCF_ONLY_AST, + incomplete_input=False, + ) + except (SyntaxError, OverflowError, ValueError): + self.showsyntaxerror(filename, source=source) + return False + if tree.body: + *_, last_stmt = tree.body + for stmt in tree.body: + wrapper = ast.Interactive if stmt is last_stmt else ast.Module + the_symbol = symbol if stmt is last_stmt else "exec" + item = wrapper([stmt]) + try: + code = self.compile.compiler(item, filename, the_symbol) + except SyntaxError as e: + if e.args[0] == "'await' outside function": + python = os.path.basename(sys.executable) + e.add_note( + f"Try the asyncio REPL ({python} -m asyncio) to use" + f" top-level 'await' and run background asyncio tasks." + ) + self.showsyntaxerror(filename, source=source) + return False + except (OverflowError, ValueError): + self.showsyntaxerror(filename, source=source) + return False + + if code is None: + return True + + self.runcode(code) + return False diff --git a/Lib/_pyrepl/curses.py b/Lib/_pyrepl/curses.py new file mode 100644 index 0000000000..3a624d9f68 --- /dev/null +++ b/Lib/_pyrepl/curses.py @@ -0,0 +1,33 @@ +# Copyright 2000-2010 Michael Hudson-Doyle +# Armin Rigo +# +# All Rights Reserved +# +# +# Permission to use, copy, modify, and distribute this software and +# its documentation for any purpose is hereby granted without fee, +# provided that the above copyright notice appear in all copies and +# that both that copyright notice and this permission notice appear in +# supporting documentation. +# +# THE AUTHOR MICHAEL HUDSON DISCLAIMS ALL WARRANTIES WITH REGARD TO +# THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +# AND FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, +# INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER +# RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF +# CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN +# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + + +try: + import _curses +except ImportError: + try: + import curses as _curses # type: ignore[no-redef] + except ImportError: + from . import _minimal_curses as _curses # type: ignore[no-redef] + +setupterm = _curses.setupterm +tigetstr = _curses.tigetstr +tparm = _curses.tparm +error = _curses.error diff --git a/Lib/_pyrepl/fancy_termios.py b/Lib/_pyrepl/fancy_termios.py new file mode 100644 index 0000000000..0468b9a267 --- /dev/null +++ b/Lib/_pyrepl/fancy_termios.py @@ -0,0 +1,76 @@ +# Copyright 2000-2004 Michael Hudson-Doyle +# +# All Rights Reserved +# +# +# Permission to use, copy, modify, and distribute this software and +# its documentation for any purpose is hereby granted without fee, +# provided that the above copyright notice appear in all copies and +# that both that copyright notice and this permission notice appear in +# supporting documentation. +# +# THE AUTHOR MICHAEL HUDSON DISCLAIMS ALL WARRANTIES WITH REGARD TO +# THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +# AND FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, +# INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER +# RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF +# CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN +# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +import termios + + +class TermState: + def __init__(self, tuples): + ( + self.iflag, + self.oflag, + self.cflag, + self.lflag, + self.ispeed, + self.ospeed, + self.cc, + ) = tuples + + def as_list(self): + return [ + self.iflag, + self.oflag, + self.cflag, + self.lflag, + self.ispeed, + self.ospeed, + # Always return a copy of the control characters list to ensure + # there are not any additional references to self.cc + self.cc[:], + ] + + def copy(self): + return self.__class__(self.as_list()) + + +def tcgetattr(fd): + return TermState(termios.tcgetattr(fd)) + + +def tcsetattr(fd, when, attrs): + termios.tcsetattr(fd, when, attrs.as_list()) + + +class Term(TermState): + TS__init__ = TermState.__init__ + + def __init__(self, fd=0): + self.TS__init__(termios.tcgetattr(fd)) + self.fd = fd + self.stack = [] + + def save(self): + self.stack.append(self.as_list()) + + def set(self, when=termios.TCSANOW): + termios.tcsetattr(self.fd, when, self.as_list()) + + def restore(self): + self.TS__init__(self.stack.pop()) + self.set() diff --git a/Lib/_pyrepl/historical_reader.py b/Lib/_pyrepl/historical_reader.py new file mode 100644 index 0000000000..c4b95fa2e8 --- /dev/null +++ b/Lib/_pyrepl/historical_reader.py @@ -0,0 +1,419 @@ +# Copyright 2000-2004 Michael Hudson-Doyle +# +# All Rights Reserved +# +# +# Permission to use, copy, modify, and distribute this software and +# its documentation for any purpose is hereby granted without fee, +# provided that the above copyright notice appear in all copies and +# that both that copyright notice and this permission notice appear in +# supporting documentation. +# +# THE AUTHOR MICHAEL HUDSON DISCLAIMS ALL WARRANTIES WITH REGARD TO +# THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +# AND FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, +# INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER +# RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF +# CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN +# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +from __future__ import annotations + +from contextlib import contextmanager +from dataclasses import dataclass, field + +from . import commands, input +from .reader import Reader + + +if False: + from .types import SimpleContextManager, KeySpec, CommandName + + +isearch_keymap: tuple[tuple[KeySpec, CommandName], ...] = tuple( + [("\\%03o" % c, "isearch-end") for c in range(256) if chr(c) != "\\"] + + [(c, "isearch-add-character") for c in map(chr, range(32, 127)) if c != "\\"] + + [ + ("\\%03o" % c, "isearch-add-character") + for c in range(256) + if chr(c).isalpha() and chr(c) != "\\" + ] + + [ + ("\\\\", "self-insert"), + (r"\C-r", "isearch-backwards"), + (r"\C-s", "isearch-forwards"), + (r"\C-c", "isearch-cancel"), + (r"\C-g", "isearch-cancel"), + (r"\", "isearch-backspace"), + ] +) + +ISEARCH_DIRECTION_NONE = "" +ISEARCH_DIRECTION_BACKWARDS = "r" +ISEARCH_DIRECTION_FORWARDS = "f" + + +class next_history(commands.Command): + def do(self) -> None: + r = self.reader + if r.historyi == len(r.history): + r.error("end of history list") + return + r.select_item(r.historyi + 1) + + +class previous_history(commands.Command): + def do(self) -> None: + r = self.reader + if r.historyi == 0: + r.error("start of history list") + return + r.select_item(r.historyi - 1) + + +class history_search_backward(commands.Command): + def do(self) -> None: + r = self.reader + r.search_next(forwards=False) + + +class history_search_forward(commands.Command): + def do(self) -> None: + r = self.reader + r.search_next(forwards=True) + + +class restore_history(commands.Command): + def do(self) -> None: + r = self.reader + if r.historyi != len(r.history): + if r.get_unicode() != r.history[r.historyi]: + r.buffer = list(r.history[r.historyi]) + r.pos = len(r.buffer) + r.dirty = True + + +class first_history(commands.Command): + def do(self) -> None: + self.reader.select_item(0) + + +class last_history(commands.Command): + def do(self) -> None: + self.reader.select_item(len(self.reader.history)) + + +class operate_and_get_next(commands.FinishCommand): + def do(self) -> None: + self.reader.next_history = self.reader.historyi + 1 + + +class yank_arg(commands.Command): + def do(self) -> None: + r = self.reader + if r.last_command is self.__class__: + r.yank_arg_i += 1 + else: + r.yank_arg_i = 0 + if r.historyi < r.yank_arg_i: + r.error("beginning of history list") + return + a = r.get_arg(-1) + # XXX how to split? + words = r.get_item(r.historyi - r.yank_arg_i - 1).split() + if a < -len(words) or a >= len(words): + r.error("no such arg") + return + w = words[a] + b = r.buffer + if r.yank_arg_i > 0: + o = len(r.yank_arg_yanked) + else: + o = 0 + b[r.pos - o : r.pos] = list(w) + r.yank_arg_yanked = w + r.pos += len(w) - o + r.dirty = True + + +class forward_history_isearch(commands.Command): + def do(self) -> None: + r = self.reader + r.isearch_direction = ISEARCH_DIRECTION_FORWARDS + r.isearch_start = r.historyi, r.pos + r.isearch_term = "" + r.dirty = True + r.push_input_trans(r.isearch_trans) + + +class reverse_history_isearch(commands.Command): + def do(self) -> None: + r = self.reader + r.isearch_direction = ISEARCH_DIRECTION_BACKWARDS + r.dirty = True + r.isearch_term = "" + r.push_input_trans(r.isearch_trans) + r.isearch_start = r.historyi, r.pos + + +class isearch_cancel(commands.Command): + def do(self) -> None: + r = self.reader + r.isearch_direction = ISEARCH_DIRECTION_NONE + r.pop_input_trans() + r.select_item(r.isearch_start[0]) + r.pos = r.isearch_start[1] + r.dirty = True + + +class isearch_add_character(commands.Command): + def do(self) -> None: + r = self.reader + b = r.buffer + r.isearch_term += self.event[-1] + r.dirty = True + p = r.pos + len(r.isearch_term) - 1 + if b[p : p + 1] != [r.isearch_term[-1]]: + r.isearch_next() + + +class isearch_backspace(commands.Command): + def do(self) -> None: + r = self.reader + if len(r.isearch_term) > 0: + r.isearch_term = r.isearch_term[:-1] + r.dirty = True + else: + r.error("nothing to rubout") + + +class isearch_forwards(commands.Command): + def do(self) -> None: + r = self.reader + r.isearch_direction = ISEARCH_DIRECTION_FORWARDS + r.isearch_next() + + +class isearch_backwards(commands.Command): + def do(self) -> None: + r = self.reader + r.isearch_direction = ISEARCH_DIRECTION_BACKWARDS + r.isearch_next() + + +class isearch_end(commands.Command): + def do(self) -> None: + r = self.reader + r.isearch_direction = ISEARCH_DIRECTION_NONE + r.console.forgetinput() + r.pop_input_trans() + r.dirty = True + + +@dataclass +class HistoricalReader(Reader): + """Adds history support (with incremental history searching) to the + Reader class. + """ + + history: list[str] = field(default_factory=list) + historyi: int = 0 + next_history: int | None = None + transient_history: dict[int, str] = field(default_factory=dict) + isearch_term: str = "" + isearch_direction: str = ISEARCH_DIRECTION_NONE + isearch_start: tuple[int, int] = field(init=False) + isearch_trans: input.KeymapTranslator = field(init=False) + yank_arg_i: int = 0 + yank_arg_yanked: str = "" + + def __post_init__(self) -> None: + super().__post_init__() + for c in [ + next_history, + previous_history, + restore_history, + first_history, + last_history, + yank_arg, + forward_history_isearch, + reverse_history_isearch, + isearch_end, + isearch_add_character, + isearch_cancel, + isearch_add_character, + isearch_backspace, + isearch_forwards, + isearch_backwards, + operate_and_get_next, + history_search_backward, + history_search_forward, + ]: + self.commands[c.__name__] = c + self.commands[c.__name__.replace("_", "-")] = c + self.isearch_start = self.historyi, self.pos + self.isearch_trans = input.KeymapTranslator( + isearch_keymap, invalid_cls=isearch_end, character_cls=isearch_add_character + ) + + def collect_keymap(self) -> tuple[tuple[KeySpec, CommandName], ...]: + return super().collect_keymap() + ( + (r"\C-n", "next-history"), + (r"\C-p", "previous-history"), + (r"\C-o", "operate-and-get-next"), + (r"\C-r", "reverse-history-isearch"), + (r"\C-s", "forward-history-isearch"), + (r"\M-r", "restore-history"), + (r"\M-.", "yank-arg"), + (r"\", "history-search-forward"), + (r"\x1b[6~", "history-search-forward"), + (r"\", "history-search-backward"), + (r"\x1b[5~", "history-search-backward"), + ) + + def select_item(self, i: int) -> None: + self.transient_history[self.historyi] = self.get_unicode() + buf = self.transient_history.get(i) + if buf is None: + buf = self.history[i].rstrip() + self.buffer = list(buf) + self.historyi = i + self.pos = len(self.buffer) + self.dirty = True + self.last_refresh_cache.invalidated = True + + def get_item(self, i: int) -> str: + if i != len(self.history): + return self.transient_history.get(i, self.history[i]) + else: + return self.transient_history.get(i, self.get_unicode()) + + @contextmanager + def suspend(self) -> SimpleContextManager: + with super().suspend(), self.suspend_history(): + yield + + @contextmanager + def suspend_history(self) -> SimpleContextManager: + try: + old_history = self.history[:] + del self.history[:] + yield + finally: + self.history[:] = old_history + + def prepare(self) -> None: + super().prepare() + try: + self.transient_history = {} + if self.next_history is not None and self.next_history < len(self.history): + self.historyi = self.next_history + self.buffer[:] = list(self.history[self.next_history]) + self.pos = len(self.buffer) + self.transient_history[len(self.history)] = "" + else: + self.historyi = len(self.history) + self.next_history = None + except: + self.restore() + raise + + def get_prompt(self, lineno: int, cursor_on_line: bool) -> str: + if cursor_on_line and self.isearch_direction != ISEARCH_DIRECTION_NONE: + d = "rf"[self.isearch_direction == ISEARCH_DIRECTION_FORWARDS] + return "(%s-search `%s') " % (d, self.isearch_term) + else: + return super().get_prompt(lineno, cursor_on_line) + + def search_next(self, *, forwards: bool) -> None: + """Search history for the current line contents up to the cursor. + + Selects the first item found. If nothing is under the cursor, any next + item in history is selected. + """ + pos = self.pos + s = self.get_unicode() + history_index = self.historyi + + # In multiline contexts, we're only interested in the current line. + nl_index = s.rfind('\n', 0, pos) + prefix = s[nl_index + 1:pos] + pos = len(prefix) + + match_prefix = len(prefix) + len_item = 0 + if history_index < len(self.history): + len_item = len(self.get_item(history_index)) + if len_item and pos == len_item: + match_prefix = False + elif not pos: + match_prefix = False + + while 1: + if forwards: + out_of_bounds = history_index >= len(self.history) - 1 + else: + out_of_bounds = history_index == 0 + if out_of_bounds: + if forwards and not match_prefix: + self.pos = 0 + self.buffer = [] + self.dirty = True + else: + self.error("not found") + return + + history_index += 1 if forwards else -1 + s = self.get_item(history_index) + + if not match_prefix: + self.select_item(history_index) + return + + len_acc = 0 + for i, line in enumerate(s.splitlines(keepends=True)): + if line.startswith(prefix): + self.select_item(history_index) + self.pos = pos + len_acc + return + len_acc += len(line) + + def isearch_next(self) -> None: + st = self.isearch_term + p = self.pos + i = self.historyi + s = self.get_unicode() + forwards = self.isearch_direction == ISEARCH_DIRECTION_FORWARDS + while 1: + if forwards: + p = s.find(st, p + 1) + else: + p = s.rfind(st, 0, p + len(st) - 1) + if p != -1: + self.select_item(i) + self.pos = p + return + elif (forwards and i >= len(self.history) - 1) or (not forwards and i == 0): + self.error("not found") + return + else: + if forwards: + i += 1 + s = self.get_item(i) + p = -1 + else: + i -= 1 + s = self.get_item(i) + p = len(s) + + def finish(self) -> None: + super().finish() + ret = self.get_unicode() + for i, t in self.transient_history.items(): + if i < len(self.history) and i != self.historyi: + self.history[i] = t + if ret and should_auto_add_history: + self.history.append(ret) + + +should_auto_add_history = True diff --git a/Lib/_pyrepl/input.py b/Lib/_pyrepl/input.py new file mode 100644 index 0000000000..21c24eb5cd --- /dev/null +++ b/Lib/_pyrepl/input.py @@ -0,0 +1,114 @@ +# Copyright 2000-2004 Michael Hudson-Doyle +# +# All Rights Reserved +# +# +# Permission to use, copy, modify, and distribute this software and +# its documentation for any purpose is hereby granted without fee, +# provided that the above copyright notice appear in all copies and +# that both that copyright notice and this permission notice appear in +# supporting documentation. +# +# THE AUTHOR MICHAEL HUDSON DISCLAIMS ALL WARRANTIES WITH REGARD TO +# THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +# AND FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, +# INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER +# RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF +# CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN +# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +# (naming modules after builtin functions is not such a hot idea...) + +# an KeyTrans instance translates Event objects into Command objects + +# hmm, at what level do we want [C-i] and [tab] to be equivalent? +# [meta-a] and [esc a]? obviously, these are going to be equivalent +# for the UnixConsole, but should they be for PygameConsole? + +# it would in any situation seem to be a bad idea to bind, say, [tab] +# and [C-i] to *different* things... but should binding one bind the +# other? + +# executive, temporary decision: [tab] and [C-i] are distinct, but +# [meta-key] is identified with [esc key]. We demand that any console +# class does quite a lot towards emulating a unix terminal. + +from __future__ import annotations + +from abc import ABC, abstractmethod +import unicodedata +from collections import deque + + +# types +if False: + from .types import EventTuple + + +class InputTranslator(ABC): + @abstractmethod + def push(self, evt: EventTuple) -> None: + pass + + @abstractmethod + def get(self) -> EventTuple | None: + return None + + @abstractmethod + def empty(self) -> bool: + return True + + +class KeymapTranslator(InputTranslator): + def __init__(self, keymap, verbose=False, invalid_cls=None, character_cls=None): + self.verbose = verbose + from .keymap import compile_keymap, parse_keys + + self.keymap = keymap + self.invalid_cls = invalid_cls + self.character_cls = character_cls + d = {} + for keyspec, command in keymap: + keyseq = tuple(parse_keys(keyspec)) + d[keyseq] = command + if self.verbose: + print(d) + self.k = self.ck = compile_keymap(d, ()) + self.results = deque() + self.stack = [] + + def push(self, evt): + if self.verbose: + print("pushed", evt.data, end="") + key = evt.data + d = self.k.get(key) + if isinstance(d, dict): + if self.verbose: + print("transition") + self.stack.append(key) + self.k = d + else: + if d is None: + if self.verbose: + print("invalid") + if self.stack or len(key) > 1 or unicodedata.category(key) == "C": + self.results.append((self.invalid_cls, self.stack + [key])) + else: + # small optimization: + self.k[key] = self.character_cls + self.results.append((self.character_cls, [key])) + else: + if self.verbose: + print("matched", d) + self.results.append((d, self.stack + [key])) + self.stack = [] + self.k = self.ck + + def get(self): + if self.results: + return self.results.popleft() + else: + return None + + def empty(self) -> bool: + return not self.results diff --git a/Lib/_pyrepl/keymap.py b/Lib/_pyrepl/keymap.py new file mode 100644 index 0000000000..2fb03d1952 --- /dev/null +++ b/Lib/_pyrepl/keymap.py @@ -0,0 +1,213 @@ +# Copyright 2000-2008 Michael Hudson-Doyle +# Armin Rigo +# +# All Rights Reserved +# +# +# Permission to use, copy, modify, and distribute this software and +# its documentation for any purpose is hereby granted without fee, +# provided that the above copyright notice appear in all copies and +# that both that copyright notice and this permission notice appear in +# supporting documentation. +# +# THE AUTHOR MICHAEL HUDSON DISCLAIMS ALL WARRANTIES WITH REGARD TO +# THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +# AND FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, +# INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER +# RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF +# CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN +# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +""" +Keymap contains functions for parsing keyspecs and turning keyspecs into +appropriate sequences. + +A keyspec is a string representing a sequence of key presses that can +be bound to a command. All characters other than the backslash represent +themselves. In the traditional manner, a backslash introduces an escape +sequence. + +pyrepl uses its own keyspec format that is meant to be a strict superset of +readline's KEYSEQ format. This means that if a spec is found that readline +accepts that this doesn't, it should be logged as a bug. Note that this means +we're using the `\\C-o' style of readline's keyspec, not the `Control-o' sort. + +The extension to readline is that the sequence \\ denotes the +sequence of characters produced by hitting KEY. + +Examples: +`a' - what you get when you hit the `a' key +`\\EOA' - Escape - O - A (up, on my terminal) +`\\' - the up arrow key +`\\' - ditto (keynames are case-insensitive) +`\\C-o', `\\c-o' - control-o +`\\M-.' - meta-period +`\\E.' - ditto (that's how meta works for pyrepl) +`\\', `\\', `\\t', `\\011', '\\x09', '\\X09', '\\C-i', '\\C-I' + - all of these are the tab character. +""" + +_escapes = { + "\\": "\\", + "'": "'", + '"': '"', + "a": "\a", + "b": "\b", + "e": "\033", + "f": "\f", + "n": "\n", + "r": "\r", + "t": "\t", + "v": "\v", +} + +_keynames = { + "backspace": "backspace", + "delete": "delete", + "down": "down", + "end": "end", + "enter": "\r", + "escape": "\033", + "f1": "f1", + "f2": "f2", + "f3": "f3", + "f4": "f4", + "f5": "f5", + "f6": "f6", + "f7": "f7", + "f8": "f8", + "f9": "f9", + "f10": "f10", + "f11": "f11", + "f12": "f12", + "f13": "f13", + "f14": "f14", + "f15": "f15", + "f16": "f16", + "f17": "f17", + "f18": "f18", + "f19": "f19", + "f20": "f20", + "home": "home", + "insert": "insert", + "left": "left", + "page down": "page down", + "page up": "page up", + "return": "\r", + "right": "right", + "space": " ", + "tab": "\t", + "up": "up", +} + + +class KeySpecError(Exception): + pass + + +def parse_keys(keys: str) -> list[str]: + """Parse keys in keyspec format to a sequence of keys.""" + s = 0 + r: list[str] = [] + while s < len(keys): + k, s = _parse_single_key_sequence(keys, s) + r.extend(k) + return r + + +def _parse_single_key_sequence(key: str, s: int) -> tuple[list[str], int]: + ctrl = 0 + meta = 0 + ret = "" + while not ret and s < len(key): + if key[s] == "\\": + c = key[s + 1].lower() + if c in _escapes: + ret = _escapes[c] + s += 2 + elif c == "c": + if key[s + 2] != "-": + raise KeySpecError( + "\\C must be followed by `-' (char %d of %s)" + % (s + 2, repr(key)) + ) + if ctrl: + raise KeySpecError( + "doubled \\C- (char %d of %s)" % (s + 1, repr(key)) + ) + ctrl = 1 + s += 3 + elif c == "m": + if key[s + 2] != "-": + raise KeySpecError( + "\\M must be followed by `-' (char %d of %s)" + % (s + 2, repr(key)) + ) + if meta: + raise KeySpecError( + "doubled \\M- (char %d of %s)" % (s + 1, repr(key)) + ) + meta = 1 + s += 3 + elif c.isdigit(): + n = key[s + 1 : s + 4] + ret = chr(int(n, 8)) + s += 4 + elif c == "x": + n = key[s + 2 : s + 4] + ret = chr(int(n, 16)) + s += 4 + elif c == "<": + t = key.find(">", s) + if t == -1: + raise KeySpecError( + "unterminated \\< starting at char %d of %s" + % (s + 1, repr(key)) + ) + ret = key[s + 2 : t].lower() + if ret not in _keynames: + raise KeySpecError( + "unrecognised keyname `%s' at char %d of %s" + % (ret, s + 2, repr(key)) + ) + ret = _keynames[ret] + s = t + 1 + else: + raise KeySpecError( + "unknown backslash escape %s at char %d of %s" + % (repr(c), s + 2, repr(key)) + ) + else: + ret = key[s] + s += 1 + if ctrl: + if len(ret) == 1: + ret = chr(ord(ret) & 0x1F) # curses.ascii.ctrl() + elif ret in {"left", "right"}: + ret = f"ctrl {ret}" + else: + raise KeySpecError("\\C- followed by invalid key") + + result = [ret], s + if meta: + result[0].insert(0, "\033") + return result + + +def compile_keymap(keymap, empty=b""): + r = {} + for key, value in keymap.items(): + if isinstance(key, bytes): + first = key[:1] + else: + first = key[0] + r.setdefault(first, {})[key[1:]] = value + for key, value in r.items(): + if empty in value: + if len(value) != 1: + raise KeySpecError("key definitions for %s clash" % (value.values(),)) + else: + r[key] = value[empty] + else: + r[key] = compile_keymap(value, empty) + return r diff --git a/Lib/_pyrepl/main.py b/Lib/_pyrepl/main.py new file mode 100644 index 0000000000..a6f824dcc4 --- /dev/null +++ b/Lib/_pyrepl/main.py @@ -0,0 +1,59 @@ +import errno +import os +import sys + + +CAN_USE_PYREPL: bool +FAIL_REASON: str +try: + if sys.platform == "win32" and sys.getwindowsversion().build < 10586: + raise RuntimeError("Windows 10 TH2 or later required") + if not os.isatty(sys.stdin.fileno()): + raise OSError(errno.ENOTTY, "tty required", "stdin") + from .simple_interact import check + if err := check(): + raise RuntimeError(err) +except Exception as e: + CAN_USE_PYREPL = False + FAIL_REASON = f"warning: can't use pyrepl: {e}" +else: + CAN_USE_PYREPL = True + FAIL_REASON = "" + + +def interactive_console(mainmodule=None, quiet=False, pythonstartup=False): + if not CAN_USE_PYREPL: + if not os.getenv('PYTHON_BASIC_REPL') and FAIL_REASON: + from .trace import trace + trace(FAIL_REASON) + print(FAIL_REASON, file=sys.stderr) + return sys._baserepl() + + if mainmodule: + namespace = mainmodule.__dict__ + else: + import __main__ + namespace = __main__.__dict__ + namespace.pop("__pyrepl_interactive_console", None) + + # sys._baserepl() above does this internally, we do it here + startup_path = os.getenv("PYTHONSTARTUP") + if pythonstartup and startup_path: + sys.audit("cpython.run_startup", startup_path) + + import tokenize + with tokenize.open(startup_path) as f: + startup_code = compile(f.read(), startup_path, "exec") + exec(startup_code, namespace) + + # set sys.{ps1,ps2} just before invoking the interactive interpreter. This + # mimics what CPython does in pythonrun.c + if not hasattr(sys, "ps1"): + sys.ps1 = ">>> " + if not hasattr(sys, "ps2"): + sys.ps2 = "... " + + from .console import InteractiveColoredConsole + from .simple_interact import run_multiline_interactive_console + console = InteractiveColoredConsole(namespace, filename="") + run_multiline_interactive_console(console) diff --git a/Lib/_pyrepl/mypy.ini b/Lib/_pyrepl/mypy.ini new file mode 100644 index 0000000000..395f5945ab --- /dev/null +++ b/Lib/_pyrepl/mypy.ini @@ -0,0 +1,24 @@ +# Config file for running mypy on _pyrepl. +# Run mypy by invoking `mypy --config-file Lib/_pyrepl/mypy.ini` +# on the command-line from the repo root + +[mypy] +files = Lib/_pyrepl +explicit_package_bases = True +python_version = 3.12 +platform = linux +pretty = True + +# Enable most stricter settings +enable_error_code = ignore-without-code,redundant-expr +strict = True + +# Various stricter settings that we can't yet enable +# Try to enable these in the following order: +disallow_untyped_calls = False +disallow_untyped_defs = False +check_untyped_defs = False + +# Various internal modules that typeshed deliberately doesn't have stubs for: +[mypy-_abc.*,_opcode.*,_overlapped.*,_testcapi.*,_testinternalcapi.*,test.*] +ignore_missing_imports = True diff --git a/Lib/_pyrepl/pager.py b/Lib/_pyrepl/pager.py new file mode 100644 index 0000000000..1fddc63e3e --- /dev/null +++ b/Lib/_pyrepl/pager.py @@ -0,0 +1,175 @@ +from __future__ import annotations + +import io +import os +import re +import sys + + +# types +if False: + from typing import Protocol + class Pager(Protocol): + def __call__(self, text: str, title: str = "") -> None: + ... + + +def get_pager() -> Pager: + """Decide what method to use for paging through text.""" + if not hasattr(sys.stdin, "isatty"): + return plain_pager + if not hasattr(sys.stdout, "isatty"): + return plain_pager + if not sys.stdin.isatty() or not sys.stdout.isatty(): + return plain_pager + if sys.platform == "emscripten": + return plain_pager + use_pager = os.environ.get('MANPAGER') or os.environ.get('PAGER') + if use_pager: + if sys.platform == 'win32': # pipes completely broken in Windows + return lambda text, title='': tempfile_pager(plain(text), use_pager) + elif os.environ.get('TERM') in ('dumb', 'emacs'): + return lambda text, title='': pipe_pager(plain(text), use_pager, title) + else: + return lambda text, title='': pipe_pager(text, use_pager, title) + if os.environ.get('TERM') in ('dumb', 'emacs'): + return plain_pager + if sys.platform == 'win32': + return lambda text, title='': tempfile_pager(plain(text), 'more <') + if hasattr(os, 'system') and os.system('(pager) 2>/dev/null') == 0: + return lambda text, title='': pipe_pager(text, 'pager', title) + if hasattr(os, 'system') and os.system('(less) 2>/dev/null') == 0: + return lambda text, title='': pipe_pager(text, 'less', title) + + import tempfile + (fd, filename) = tempfile.mkstemp() + os.close(fd) + try: + if hasattr(os, 'system') and os.system('more "%s"' % filename) == 0: + return lambda text, title='': pipe_pager(text, 'more', title) + else: + return tty_pager + finally: + os.unlink(filename) + + +def escape_stdout(text: str) -> str: + # Escape non-encodable characters to avoid encoding errors later + encoding = getattr(sys.stdout, 'encoding', None) or 'utf-8' + return text.encode(encoding, 'backslashreplace').decode(encoding) + + +def escape_less(s: str) -> str: + return re.sub(r'([?:.%\\])', r'\\\1', s) + + +def plain(text: str) -> str: + """Remove boldface formatting from text.""" + return re.sub('.\b', '', text) + + +def tty_pager(text: str, title: str = '') -> None: + """Page through text on a text terminal.""" + lines = plain(escape_stdout(text)).split('\n') + has_tty = False + try: + import tty + import termios + fd = sys.stdin.fileno() + old = termios.tcgetattr(fd) + tty.setcbreak(fd) + has_tty = True + + def getchar() -> str: + return sys.stdin.read(1) + + except (ImportError, AttributeError, io.UnsupportedOperation): + def getchar() -> str: + return sys.stdin.readline()[:-1][:1] + + try: + try: + h = int(os.environ.get('LINES', 0)) + except ValueError: + h = 0 + if h <= 1: + h = 25 + r = inc = h - 1 + sys.stdout.write('\n'.join(lines[:inc]) + '\n') + while lines[r:]: + sys.stdout.write('-- more --') + sys.stdout.flush() + c = getchar() + + if c in ('q', 'Q'): + sys.stdout.write('\r \r') + break + elif c in ('\r', '\n'): + sys.stdout.write('\r \r' + lines[r] + '\n') + r = r + 1 + continue + if c in ('b', 'B', '\x1b'): + r = r - inc - inc + if r < 0: r = 0 + sys.stdout.write('\n' + '\n'.join(lines[r:r+inc]) + '\n') + r = r + inc + + finally: + if has_tty: + termios.tcsetattr(fd, termios.TCSAFLUSH, old) + + +def plain_pager(text: str, title: str = '') -> None: + """Simply print unformatted text. This is the ultimate fallback.""" + sys.stdout.write(plain(escape_stdout(text))) + + +def pipe_pager(text: str, cmd: str, title: str = '') -> None: + """Page through text by feeding it to another program.""" + import subprocess + env = os.environ.copy() + if title: + title += ' ' + esc_title = escape_less(title) + prompt_string = ( + f' {esc_title}' + + '?ltline %lt?L/%L.' + ':byte %bB?s/%s.' + '.' + '?e (END):?pB %pB\\%..' + ' (press h for help or q to quit)') + env['LESS'] = '-RmPm{0}$PM{0}$'.format(prompt_string) + proc = subprocess.Popen(cmd, shell=True, stdin=subprocess.PIPE, + errors='backslashreplace', env=env) + assert proc.stdin is not None + try: + with proc.stdin as pipe: + try: + pipe.write(text) + except KeyboardInterrupt: + # We've hereby abandoned whatever text hasn't been written, + # but the pager is still in control of the terminal. + pass + except OSError: + pass # Ignore broken pipes caused by quitting the pager program. + while True: + try: + proc.wait() + break + except KeyboardInterrupt: + # Ignore ctl-c like the pager itself does. Otherwise the pager is + # left running and the terminal is in raw mode and unusable. + pass + + +def tempfile_pager(text: str, cmd: str, title: str = '') -> None: + """Page through text by invoking a program on a temporary file.""" + import tempfile + with tempfile.TemporaryDirectory() as tempdir: + filename = os.path.join(tempdir, 'pydoc.out') + with open(filename, 'w', errors='backslashreplace', + encoding=os.device_encoding(0) if + sys.platform == 'win32' else None + ) as file: + file.write(text) + os.system(cmd + ' "' + filename + '"') diff --git a/Lib/_pyrepl/reader.py b/Lib/_pyrepl/reader.py new file mode 100644 index 0000000000..dc26bfd3a3 --- /dev/null +++ b/Lib/_pyrepl/reader.py @@ -0,0 +1,816 @@ +# Copyright 2000-2010 Michael Hudson-Doyle +# Antonio Cuni +# Armin Rigo +# +# All Rights Reserved +# +# +# Permission to use, copy, modify, and distribute this software and +# its documentation for any purpose is hereby granted without fee, +# provided that the above copyright notice appear in all copies and +# that both that copyright notice and this permission notice appear in +# supporting documentation. +# +# THE AUTHOR MICHAEL HUDSON DISCLAIMS ALL WARRANTIES WITH REGARD TO +# THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +# AND FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, +# INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER +# RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF +# CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN +# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +from __future__ import annotations + +import sys + +from contextlib import contextmanager +from dataclasses import dataclass, field, fields +import unicodedata +from _colorize import can_colorize, ANSIColors # type: ignore[import-not-found] + + +from . import commands, console, input +from .utils import ANSI_ESCAPE_SEQUENCE, wlen, str_width +from .trace import trace + + +# types +Command = commands.Command +from .types import Callback, SimpleContextManager, KeySpec, CommandName + + +def disp_str(buffer: str) -> tuple[str, list[int]]: + """disp_str(buffer:string) -> (string, [int]) + + Return the string that should be the printed representation of + |buffer| and a list detailing where the characters of |buffer| + get used up. E.g.: + + >>> disp_str(chr(3)) + ('^C', [1, 0]) + + """ + b: list[int] = [] + s: list[str] = [] + for c in buffer: + if c == '\x1a': + s.append(c) + b.append(2) + elif ord(c) < 128: + s.append(c) + b.append(1) + elif unicodedata.category(c).startswith("C"): + c = r"\u%04x" % ord(c) + s.append(c) + b.extend([0] * (len(c) - 1)) + else: + s.append(c) + b.append(str_width(c)) + return "".join(s), b + + +# syntax classes: + +SYNTAX_WHITESPACE, SYNTAX_WORD, SYNTAX_SYMBOL = range(3) + + +def make_default_syntax_table() -> dict[str, int]: + # XXX perhaps should use some unicodedata here? + st: dict[str, int] = {} + for c in map(chr, range(256)): + st[c] = SYNTAX_SYMBOL + for c in [a for a in map(chr, range(256)) if a.isalnum()]: + st[c] = SYNTAX_WORD + st["\n"] = st[" "] = SYNTAX_WHITESPACE + return st + + +def make_default_commands() -> dict[CommandName, type[Command]]: + result: dict[CommandName, type[Command]] = {} + for v in vars(commands).values(): + if isinstance(v, type) and issubclass(v, Command) and v.__name__[0].islower(): + result[v.__name__] = v + result[v.__name__.replace("_", "-")] = v + return result + + +default_keymap: tuple[tuple[KeySpec, CommandName], ...] = tuple( + [ + (r"\C-a", "beginning-of-line"), + (r"\C-b", "left"), + (r"\C-c", "interrupt"), + (r"\C-d", "delete"), + (r"\C-e", "end-of-line"), + (r"\C-f", "right"), + (r"\C-g", "cancel"), + (r"\C-h", "backspace"), + (r"\C-j", "accept"), + (r"\", "accept"), + (r"\C-k", "kill-line"), + (r"\C-l", "clear-screen"), + (r"\C-m", "accept"), + (r"\C-t", "transpose-characters"), + (r"\C-u", "unix-line-discard"), + (r"\C-w", "unix-word-rubout"), + (r"\C-x\C-u", "upcase-region"), + (r"\C-y", "yank"), + *(() if sys.platform == "win32" else ((r"\C-z", "suspend"), )), + (r"\M-b", "backward-word"), + (r"\M-c", "capitalize-word"), + (r"\M-d", "kill-word"), + (r"\M-f", "forward-word"), + (r"\M-l", "downcase-word"), + (r"\M-t", "transpose-words"), + (r"\M-u", "upcase-word"), + (r"\M-y", "yank-pop"), + (r"\M--", "digit-arg"), + (r"\M-0", "digit-arg"), + (r"\M-1", "digit-arg"), + (r"\M-2", "digit-arg"), + (r"\M-3", "digit-arg"), + (r"\M-4", "digit-arg"), + (r"\M-5", "digit-arg"), + (r"\M-6", "digit-arg"), + (r"\M-7", "digit-arg"), + (r"\M-8", "digit-arg"), + (r"\M-9", "digit-arg"), + (r"\M-\n", "accept"), + ("\\\\", "self-insert"), + (r"\x1b[200~", "enable_bracketed_paste"), + (r"\x1b[201~", "disable_bracketed_paste"), + (r"\x03", "ctrl-c"), + ] + + [(c, "self-insert") for c in map(chr, range(32, 127)) if c != "\\"] + + [(c, "self-insert") for c in map(chr, range(128, 256)) if c.isalpha()] + + [ + (r"\", "up"), + (r"\", "down"), + (r"\", "left"), + (r"\C-\", "backward-word"), + (r"\", "right"), + (r"\C-\", "forward-word"), + (r"\", "delete"), + (r"\x1b[3~", "delete"), + (r"\", "backspace"), + (r"\M-\", "backward-kill-word"), + (r"\", "end-of-line"), # was 'end' + (r"\", "beginning-of-line"), # was 'home' + (r"\", "help"), + (r"\", "show-history"), + (r"\", "paste-mode"), + (r"\EOF", "end"), # the entries in the terminfo database for xterms + (r"\EOH", "home"), # seem to be wrong. this is a less than ideal + # workaround + ] +) + + +@dataclass(slots=True) +class Reader: + """The Reader class implements the bare bones of a command reader, + handling such details as editing and cursor motion. What it does + not support are such things as completion or history support - + these are implemented elsewhere. + + Instance variables of note include: + + * buffer: + A *list* (*not* a string at the moment :-) containing all the + characters that have been entered. + * console: + Hopefully encapsulates the OS dependent stuff. + * pos: + A 0-based index into `buffer' for where the insertion point + is. + * screeninfo: + Ahem. This list contains some info needed to move the + insertion point around reasonably efficiently. + * cxy, lxy: + the position of the insertion point in screen ... + * syntax_table: + Dictionary mapping characters to `syntax class'; read the + emacs docs to see what this means :-) + * commands: + Dictionary mapping command names to command classes. + * arg: + The emacs-style prefix argument. It will be None if no such + argument has been provided. + * dirty: + True if we need to refresh the display. + * kill_ring: + The emacs-style kill-ring; manipulated with yank & yank-pop + * ps1, ps2, ps3, ps4: + prompts. ps1 is the prompt for a one-line input; for a + multiline input it looks like: + ps2> first line of input goes here + ps3> second and further + ps3> lines get ps3 + ... + ps4> and the last one gets ps4 + As with the usual top-level, you can set these to instances if + you like; str() will be called on them (once) at the beginning + of each command. Don't put really long or newline containing + strings here, please! + This is just the default policy; you can change it freely by + overriding get_prompt() (and indeed some standard subclasses + do). + * finished: + handle1 will set this to a true value if a command signals + that we're done. + """ + + console: console.Console + + ## state + buffer: list[str] = field(default_factory=list) + pos: int = 0 + ps1: str = "->> " + ps2: str = "/>> " + ps3: str = "|.. " + ps4: str = R"\__ " + kill_ring: list[list[str]] = field(default_factory=list) + msg: str = "" + arg: int | None = None + dirty: bool = False + finished: bool = False + paste_mode: bool = False + in_bracketed_paste: bool = False + commands: dict[str, type[Command]] = field(default_factory=make_default_commands) + last_command: type[Command] | None = None + syntax_table: dict[str, int] = field(default_factory=make_default_syntax_table) + keymap: tuple[tuple[str, str], ...] = () + input_trans: input.KeymapTranslator = field(init=False) + input_trans_stack: list[input.KeymapTranslator] = field(default_factory=list) + screen: list[str] = field(default_factory=list) + screeninfo: list[tuple[int, list[int]]] = field(init=False) + cxy: tuple[int, int] = field(init=False) + lxy: tuple[int, int] = field(init=False) + scheduled_commands: list[str] = field(default_factory=list) + can_colorize: bool = False + threading_hook: Callback | None = None + + ## cached metadata to speed up screen refreshes + @dataclass + class RefreshCache: + in_bracketed_paste: bool = False + screen: list[str] = field(default_factory=list) + screeninfo: list[tuple[int, list[int]]] = field(init=False) + line_end_offsets: list[int] = field(default_factory=list) + pos: int = field(init=False) + cxy: tuple[int, int] = field(init=False) + dimensions: tuple[int, int] = field(init=False) + invalidated: bool = False + + def update_cache(self, + reader: Reader, + screen: list[str], + screeninfo: list[tuple[int, list[int]]], + ) -> None: + self.in_bracketed_paste = reader.in_bracketed_paste + self.screen = screen.copy() + self.screeninfo = screeninfo.copy() + self.pos = reader.pos + self.cxy = reader.cxy + self.dimensions = reader.console.width, reader.console.height + self.invalidated = False + + def valid(self, reader: Reader) -> bool: + if self.invalidated: + return False + dimensions = reader.console.width, reader.console.height + dimensions_changed = dimensions != self.dimensions + paste_changed = reader.in_bracketed_paste != self.in_bracketed_paste + return not (dimensions_changed or paste_changed) + + def get_cached_location(self, reader: Reader) -> tuple[int, int]: + if self.invalidated: + raise ValueError("Cache is invalidated") + offset = 0 + earliest_common_pos = min(reader.pos, self.pos) + num_common_lines = len(self.line_end_offsets) + while num_common_lines > 0: + offset = self.line_end_offsets[num_common_lines - 1] + if earliest_common_pos > offset: + break + num_common_lines -= 1 + else: + offset = 0 + return offset, num_common_lines + + last_refresh_cache: RefreshCache = field(default_factory=RefreshCache) + + def __post_init__(self) -> None: + # Enable the use of `insert` without a `prepare` call - necessary to + # facilitate the tab completion hack implemented for + # . + self.keymap = self.collect_keymap() + self.input_trans = input.KeymapTranslator( + self.keymap, invalid_cls="invalid-key", character_cls="self-insert" + ) + self.screeninfo = [(0, [])] + self.cxy = self.pos2xy() + self.lxy = (self.pos, 0) + self.can_colorize = can_colorize() + + self.last_refresh_cache.screeninfo = self.screeninfo + self.last_refresh_cache.pos = self.pos + self.last_refresh_cache.cxy = self.cxy + self.last_refresh_cache.dimensions = (0, 0) + + def collect_keymap(self) -> tuple[tuple[KeySpec, CommandName], ...]: + return default_keymap + + def calc_screen(self) -> list[str]: + """Translate changes in self.buffer into changes in self.console.screen.""" + # Since the last call to calc_screen: + # screen and screeninfo may differ due to a completion menu being shown + # pos and cxy may differ due to edits, cursor movements, or completion menus + + # Lines that are above both the old and new cursor position can't have changed, + # unless the terminal has been resized (which might cause reflowing) or we've + # entered or left paste mode (which changes prompts, causing reflowing). + num_common_lines = 0 + offset = 0 + if self.last_refresh_cache.valid(self): + offset, num_common_lines = self.last_refresh_cache.get_cached_location(self) + + screen = self.last_refresh_cache.screen + del screen[num_common_lines:] + + screeninfo = self.last_refresh_cache.screeninfo + del screeninfo[num_common_lines:] + + last_refresh_line_end_offsets = self.last_refresh_cache.line_end_offsets + del last_refresh_line_end_offsets[num_common_lines:] + + pos = self.pos + pos -= offset + + prompt_from_cache = (offset and self.buffer[offset - 1] != "\n") + + lines = "".join(self.buffer[offset:]).split("\n") + + cursor_found = False + lines_beyond_cursor = 0 + for ln, line in enumerate(lines, num_common_lines): + ll = len(line) + if 0 <= pos <= ll: + self.lxy = pos, ln + cursor_found = True + elif cursor_found: + lines_beyond_cursor += 1 + if lines_beyond_cursor > self.console.height: + # No need to keep formatting lines. + # The console can't show them. + break + if prompt_from_cache: + # Only the first line's prompt can come from the cache + prompt_from_cache = False + prompt = "" + else: + prompt = self.get_prompt(ln, ll >= pos >= 0) + while "\n" in prompt: + pre_prompt, _, prompt = prompt.partition("\n") + last_refresh_line_end_offsets.append(offset) + screen.append(pre_prompt) + screeninfo.append((0, [])) + pos -= ll + 1 + prompt, lp = self.process_prompt(prompt) + l, l2 = disp_str(line) + wrapcount = (wlen(l) + lp) // self.console.width + if wrapcount == 0: + offset += ll + 1 # Takes all of the line plus the newline + last_refresh_line_end_offsets.append(offset) + screen.append(prompt + l) + screeninfo.append((lp, l2)) + else: + i = 0 + while l: + prelen = lp if i == 0 else 0 + index_to_wrap_before = 0 + column = 0 + for character_width in l2: + if column + character_width >= self.console.width - prelen: + break + index_to_wrap_before += 1 + column += character_width + pre = prompt if i == 0 else "" + if len(l) > index_to_wrap_before: + offset += index_to_wrap_before + post = "\\" + after = [1] + else: + offset += index_to_wrap_before + 1 # Takes the newline + post = "" + after = [] + last_refresh_line_end_offsets.append(offset) + screen.append(pre + l[:index_to_wrap_before] + post) + screeninfo.append((prelen, l2[:index_to_wrap_before] + after)) + l = l[index_to_wrap_before:] + l2 = l2[index_to_wrap_before:] + i += 1 + self.screeninfo = screeninfo + self.cxy = self.pos2xy() + if self.msg: + for mline in self.msg.split("\n"): + screen.append(mline) + screeninfo.append((0, [])) + + self.last_refresh_cache.update_cache(self, screen, screeninfo) + return screen + + @staticmethod + def process_prompt(prompt: str) -> tuple[str, int]: + """Process the prompt. + + This means calculate the length of the prompt. The character \x01 + and \x02 are used to bracket ANSI control sequences and need to be + excluded from the length calculation. So also a copy of the prompt + is returned with these control characters removed.""" + + # The logic below also ignores the length of common escape + # sequences if they were not explicitly within \x01...\x02. + # They are CSI (or ANSI) sequences ( ESC [ ... LETTER ) + + # wlen from utils already excludes ANSI_ESCAPE_SEQUENCE chars, + # which breaks the logic below so we redefine it here. + def wlen(s: str) -> int: + return sum(str_width(i) for i in s) + + out_prompt = "" + l = wlen(prompt) + pos = 0 + while True: + s = prompt.find("\x01", pos) + if s == -1: + break + e = prompt.find("\x02", s) + if e == -1: + break + # Found start and end brackets, subtract from string length + l = l - (e - s + 1) + keep = prompt[pos:s] + l -= sum(map(wlen, ANSI_ESCAPE_SEQUENCE.findall(keep))) + out_prompt += keep + prompt[s + 1 : e] + pos = e + 1 + keep = prompt[pos:] + l -= sum(map(wlen, ANSI_ESCAPE_SEQUENCE.findall(keep))) + out_prompt += keep + return out_prompt, l + + def bow(self, p: int | None = None) -> int: + """Return the 0-based index of the word break preceding p most + immediately. + + p defaults to self.pos; word boundaries are determined using + self.syntax_table.""" + if p is None: + p = self.pos + st = self.syntax_table + b = self.buffer + p -= 1 + while p >= 0 and st.get(b[p], SYNTAX_WORD) != SYNTAX_WORD: + p -= 1 + while p >= 0 and st.get(b[p], SYNTAX_WORD) == SYNTAX_WORD: + p -= 1 + return p + 1 + + def eow(self, p: int | None = None) -> int: + """Return the 0-based index of the word break following p most + immediately. + + p defaults to self.pos; word boundaries are determined using + self.syntax_table.""" + if p is None: + p = self.pos + st = self.syntax_table + b = self.buffer + while p < len(b) and st.get(b[p], SYNTAX_WORD) != SYNTAX_WORD: + p += 1 + while p < len(b) and st.get(b[p], SYNTAX_WORD) == SYNTAX_WORD: + p += 1 + return p + + def bol(self, p: int | None = None) -> int: + """Return the 0-based index of the line break preceding p most + immediately. + + p defaults to self.pos.""" + if p is None: + p = self.pos + b = self.buffer + p -= 1 + while p >= 0 and b[p] != "\n": + p -= 1 + return p + 1 + + def eol(self, p: int | None = None) -> int: + """Return the 0-based index of the line break following p most + immediately. + + p defaults to self.pos.""" + if p is None: + p = self.pos + b = self.buffer + while p < len(b) and b[p] != "\n": + p += 1 + return p + + def max_column(self, y: int) -> int: + """Return the last x-offset for line y""" + return self.screeninfo[y][0] + sum(self.screeninfo[y][1]) + + def max_row(self) -> int: + return len(self.screeninfo) - 1 + + def get_arg(self, default: int = 1) -> int: + """Return any prefix argument that the user has supplied, + returning `default' if there is None. Defaults to 1. + """ + if self.arg is None: + return default + return self.arg + + def get_prompt(self, lineno: int, cursor_on_line: bool) -> str: + """Return what should be in the left-hand margin for line + `lineno'.""" + if self.arg is not None and cursor_on_line: + prompt = f"(arg: {self.arg}) " + elif self.paste_mode and not self.in_bracketed_paste: + prompt = "(paste) " + elif "\n" in self.buffer: + if lineno == 0: + prompt = self.ps2 + elif self.ps4 and lineno == self.buffer.count("\n"): + prompt = self.ps4 + else: + prompt = self.ps3 + else: + prompt = self.ps1 + + if self.can_colorize: + prompt = f"{ANSIColors.BOLD_MAGENTA}{prompt}{ANSIColors.RESET}" + return prompt + + def push_input_trans(self, itrans: input.KeymapTranslator) -> None: + self.input_trans_stack.append(self.input_trans) + self.input_trans = itrans + + def pop_input_trans(self) -> None: + self.input_trans = self.input_trans_stack.pop() + + def setpos_from_xy(self, x: int, y: int) -> None: + """Set pos according to coordinates x, y""" + pos = 0 + i = 0 + while i < y: + prompt_len, character_widths = self.screeninfo[i] + offset = len(character_widths) - character_widths.count(0) + in_wrapped_line = prompt_len + sum(character_widths) >= self.console.width + if in_wrapped_line: + pos += offset - 1 # -1 cause backslash is not in buffer + else: + pos += offset + 1 # +1 cause newline is in buffer + i += 1 + + j = 0 + cur_x = self.screeninfo[i][0] + while cur_x < x: + if self.screeninfo[i][1][j] == 0: + continue + cur_x += self.screeninfo[i][1][j] + j += 1 + pos += 1 + + self.pos = pos + + def pos2xy(self) -> tuple[int, int]: + """Return the x, y coordinates of position 'pos'.""" + # this *is* incomprehensible, yes. + p, y = 0, 0 + l2: list[int] = [] + pos = self.pos + assert 0 <= pos <= len(self.buffer) + if pos == len(self.buffer) and len(self.screeninfo) > 0: + y = len(self.screeninfo) - 1 + p, l2 = self.screeninfo[y] + return p + sum(l2) + l2.count(0), y + + for p, l2 in self.screeninfo: + l = len(l2) - l2.count(0) + in_wrapped_line = p + sum(l2) >= self.console.width + offset = l - 1 if in_wrapped_line else l # need to remove backslash + if offset >= pos: + break + + if p + sum(l2) >= self.console.width: + pos -= l - 1 # -1 cause backslash is not in buffer + else: + pos -= l + 1 # +1 cause newline is in buffer + y += 1 + return p + sum(l2[:pos]), y + + def insert(self, text: str | list[str]) -> None: + """Insert 'text' at the insertion point.""" + self.buffer[self.pos : self.pos] = list(text) + self.pos += len(text) + self.dirty = True + + def update_cursor(self) -> None: + """Move the cursor to reflect changes in self.pos""" + self.cxy = self.pos2xy() + self.console.move_cursor(*self.cxy) + + def after_command(self, cmd: Command) -> None: + """This function is called to allow post command cleanup.""" + if getattr(cmd, "kills_digit_arg", True): + if self.arg is not None: + self.dirty = True + self.arg = None + + def prepare(self) -> None: + """Get ready to run. Call restore when finished. You must not + write to the console in between the calls to prepare and + restore.""" + try: + self.console.prepare() + self.arg = None + self.finished = False + del self.buffer[:] + self.pos = 0 + self.dirty = True + self.last_command = None + self.calc_screen() + except BaseException: + self.restore() + raise + + while self.scheduled_commands: + cmd = self.scheduled_commands.pop() + self.do_cmd((cmd, [])) + + def last_command_is(self, cls: type) -> bool: + if not self.last_command: + return False + return issubclass(cls, self.last_command) + + def restore(self) -> None: + """Clean up after a run.""" + self.console.restore() + + @contextmanager + def suspend(self) -> SimpleContextManager: + """A context manager to delegate to another reader.""" + prev_state = {f.name: getattr(self, f.name) for f in fields(self)} + try: + self.restore() + yield + finally: + for arg in ("msg", "ps1", "ps2", "ps3", "ps4", "paste_mode"): + setattr(self, arg, prev_state[arg]) + self.prepare() + + def finish(self) -> None: + """Called when a command signals that we're finished.""" + pass + + def error(self, msg: str = "none") -> None: + self.msg = "! " + msg + " " + self.dirty = True + self.console.beep() + + def update_screen(self) -> None: + if self.dirty: + self.refresh() + + def refresh(self) -> None: + """Recalculate and refresh the screen.""" + if self.in_bracketed_paste and self.buffer and not self.buffer[-1] == "\n": + return + + # this call sets up self.cxy, so call it first. + self.screen = self.calc_screen() + self.console.refresh(self.screen, self.cxy) + self.dirty = False + + def do_cmd(self, cmd: tuple[str, list[str]]) -> None: + """`cmd` is a tuple of "event_name" and "event", which in the current + implementation is always just the "buffer" which happens to be a list + of single-character strings.""" + + trace("received command {cmd}", cmd=cmd) + if isinstance(cmd[0], str): + command_type = self.commands.get(cmd[0], commands.invalid_command) + elif isinstance(cmd[0], type): + command_type = cmd[0] + else: + return # nothing to do + + command = command_type(self, *cmd) # type: ignore[arg-type] + command.do() + + self.after_command(command) + + if self.dirty: + self.refresh() + else: + self.update_cursor() + + if not isinstance(cmd, commands.digit_arg): + self.last_command = command_type + + self.finished = bool(command.finish) + if self.finished: + self.console.finish() + self.finish() + + def run_hooks(self) -> None: + threading_hook = self.threading_hook + if threading_hook is None and 'threading' in sys.modules: + from ._threading_handler import install_threading_hook + install_threading_hook(self) + if threading_hook is not None: + try: + threading_hook() + except Exception: + pass + + input_hook = self.console.input_hook + if input_hook: + try: + input_hook() + except Exception: + pass + + def handle1(self, block: bool = True) -> bool: + """Handle a single event. Wait as long as it takes if block + is true (the default), otherwise return False if no event is + pending.""" + + if self.msg: + self.msg = "" + self.dirty = True + + while True: + # We use the same timeout as in readline.c: 100ms + self.run_hooks() + self.console.wait(100) + event = self.console.get_event(block=False) + if not event: + if block: + continue + return False + + translate = True + + if event.evt == "key": + self.input_trans.push(event) + elif event.evt == "scroll": + self.refresh() + elif event.evt == "resize": + self.refresh() + else: + translate = False + + if translate: + cmd = self.input_trans.get() + else: + cmd = [event.evt, event.data] + + if cmd is None: + if block: + continue + return False + + self.do_cmd(cmd) + return True + + def push_char(self, char: int | bytes) -> None: + self.console.push_char(char) + self.handle1(block=False) + + def readline(self, startup_hook: Callback | None = None) -> str: + """Read a line. The implementation of this method also shows + how to drive Reader if you want more control over the event + loop.""" + self.prepare() + try: + if startup_hook is not None: + startup_hook() + self.refresh() + while not self.finished: + self.handle1() + return self.get_unicode() + + finally: + self.restore() + + def bind(self, spec: KeySpec, command: CommandName) -> None: + self.keymap = self.keymap + ((spec, command),) + self.input_trans = input.KeymapTranslator( + self.keymap, invalid_cls="invalid-key", character_cls="self-insert" + ) + + def get_unicode(self) -> str: + """Return the current buffer as a unicode string.""" + return "".join(self.buffer) diff --git a/Lib/_pyrepl/readline.py b/Lib/_pyrepl/readline.py new file mode 100644 index 0000000000..888185eb03 --- /dev/null +++ b/Lib/_pyrepl/readline.py @@ -0,0 +1,598 @@ +# Copyright 2000-2010 Michael Hudson-Doyle +# Alex Gaynor +# Antonio Cuni +# Armin Rigo +# Holger Krekel +# +# All Rights Reserved +# +# +# Permission to use, copy, modify, and distribute this software and +# its documentation for any purpose is hereby granted without fee, +# provided that the above copyright notice appear in all copies and +# that both that copyright notice and this permission notice appear in +# supporting documentation. +# +# THE AUTHOR MICHAEL HUDSON DISCLAIMS ALL WARRANTIES WITH REGARD TO +# THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +# AND FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, +# INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER +# RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF +# CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN +# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +"""A compatibility wrapper reimplementing the 'readline' standard module +on top of pyrepl. Not all functionalities are supported. Contains +extensions for multiline input. +""" + +from __future__ import annotations + +import warnings +from dataclasses import dataclass, field + +import os +from site import gethistoryfile # type: ignore[attr-defined] +import sys +from rlcompleter import Completer as RLCompleter + +from . import commands, historical_reader +from .completing_reader import CompletingReader +from .console import Console as ConsoleType + +Console: type[ConsoleType] +_error: tuple[type[Exception], ...] | type[Exception] +try: + from .unix_console import UnixConsole as Console, _error +except ImportError: + from .windows_console import WindowsConsole as Console, _error + +ENCODING = sys.getdefaultencoding() or "latin1" + + +# types +Command = commands.Command +from collections.abc import Callable, Collection +from .types import Callback, Completer, KeySpec, CommandName + +TYPE_CHECKING = False + +if TYPE_CHECKING: + from typing import Any, Mapping + + +MoreLinesCallable = Callable[[str], bool] + + +__all__ = [ + "add_history", + "clear_history", + "get_begidx", + "get_completer", + "get_completer_delims", + "get_current_history_length", + "get_endidx", + "get_history_item", + "get_history_length", + "get_line_buffer", + "insert_text", + "parse_and_bind", + "read_history_file", + # "read_init_file", + # "redisplay", + "remove_history_item", + "replace_history_item", + "set_auto_history", + "set_completer", + "set_completer_delims", + "set_history_length", + # "set_pre_input_hook", + "set_startup_hook", + "write_history_file", + # ---- multiline extensions ---- + "multiline_input", +] + +# ____________________________________________________________ + +@dataclass +class ReadlineConfig: + readline_completer: Completer | None = None + completer_delims: frozenset[str] = frozenset(" \t\n`~!@#$%^&*()-=+[{]}\\|;:'\",<>/?") + + +@dataclass(kw_only=True) +class ReadlineAlikeReader(historical_reader.HistoricalReader, CompletingReader): + # Class fields + assume_immutable_completions = False + use_brackets = False + sort_in_column = True + + # Instance fields + config: ReadlineConfig + more_lines: MoreLinesCallable | None = None + last_used_indentation: str | None = None + + def __post_init__(self) -> None: + super().__post_init__() + self.commands["maybe_accept"] = maybe_accept + self.commands["maybe-accept"] = maybe_accept + self.commands["backspace_dedent"] = backspace_dedent + self.commands["backspace-dedent"] = backspace_dedent + + def error(self, msg: str = "none") -> None: + pass # don't show error messages by default + + def get_stem(self) -> str: + b = self.buffer + p = self.pos - 1 + completer_delims = self.config.completer_delims + while p >= 0 and b[p] not in completer_delims: + p -= 1 + return "".join(b[p + 1 : self.pos]) + + def get_completions(self, stem: str) -> list[str]: + if len(stem) == 0 and self.more_lines is not None: + b = self.buffer + p = self.pos + while p > 0 and b[p - 1] != "\n": + p -= 1 + num_spaces = 4 - ((self.pos - p) % 4) + return [" " * num_spaces] + result = [] + function = self.config.readline_completer + if function is not None: + try: + stem = str(stem) # rlcompleter.py seems to not like unicode + except UnicodeEncodeError: + pass # but feed unicode anyway if we have no choice + state = 0 + while True: + try: + next = function(stem, state) + except Exception: + break + if not isinstance(next, str): + break + result.append(next) + state += 1 + # emulate the behavior of the standard readline that sorts + # the completions before displaying them. + result.sort() + return result + + def get_trimmed_history(self, maxlength: int) -> list[str]: + if maxlength >= 0: + cut = len(self.history) - maxlength + if cut < 0: + cut = 0 + else: + cut = 0 + return self.history[cut:] + + def update_last_used_indentation(self) -> None: + indentation = _get_first_indentation(self.buffer) + if indentation is not None: + self.last_used_indentation = indentation + + # --- simplified support for reading multiline Python statements --- + + def collect_keymap(self) -> tuple[tuple[KeySpec, CommandName], ...]: + return super().collect_keymap() + ( + (r"\n", "maybe-accept"), + (r"\", "backspace-dedent"), + ) + + def after_command(self, cmd: Command) -> None: + super().after_command(cmd) + if self.more_lines is None: + # Force single-line input if we are in raw_input() mode. + # Although there is no direct way to add a \n in this mode, + # multiline buffers can still show up using various + # commands, e.g. navigating the history. + try: + index = self.buffer.index("\n") + except ValueError: + pass + else: + self.buffer = self.buffer[:index] + if self.pos > len(self.buffer): + self.pos = len(self.buffer) + + +def set_auto_history(_should_auto_add_history: bool) -> None: + """Enable or disable automatic history""" + historical_reader.should_auto_add_history = bool(_should_auto_add_history) + + +def _get_this_line_indent(buffer: list[str], pos: int) -> int: + indent = 0 + while pos > 0 and buffer[pos - 1] in " \t": + indent += 1 + pos -= 1 + if pos > 0 and buffer[pos - 1] == "\n": + return indent + return 0 + + +def _get_previous_line_indent(buffer: list[str], pos: int) -> tuple[int, int | None]: + prevlinestart = pos + while prevlinestart > 0 and buffer[prevlinestart - 1] != "\n": + prevlinestart -= 1 + prevlinetext = prevlinestart + while prevlinetext < pos and buffer[prevlinetext] in " \t": + prevlinetext += 1 + if prevlinetext == pos: + indent = None + else: + indent = prevlinetext - prevlinestart + return prevlinestart, indent + + +def _get_first_indentation(buffer: list[str]) -> str | None: + indented_line_start = None + for i in range(len(buffer)): + if (i < len(buffer) - 1 + and buffer[i] == "\n" + and buffer[i + 1] in " \t" + ): + indented_line_start = i + 1 + elif indented_line_start is not None and buffer[i] not in " \t\n": + return ''.join(buffer[indented_line_start : i]) + return None + + +def _should_auto_indent(buffer: list[str], pos: int) -> bool: + # check if last character before "pos" is a colon, ignoring + # whitespaces and comments. + last_char = None + while pos > 0: + pos -= 1 + if last_char is None: + if buffer[pos] not in " \t\n#": # ignore whitespaces and comments + last_char = buffer[pos] + else: + # even if we found a non-whitespace character before + # original pos, we keep going back until newline is reached + # to make sure we ignore comments + if buffer[pos] == "\n": + break + if buffer[pos] == "#": + last_char = None + return last_char == ":" + + +class maybe_accept(commands.Command): + def do(self) -> None: + r: ReadlineAlikeReader + r = self.reader # type: ignore[assignment] + r.dirty = True # this is needed to hide the completion menu, if visible + + if self.reader.in_bracketed_paste: + r.insert("\n") + return + + # if there are already several lines and the cursor + # is not on the last one, always insert a new \n. + text = r.get_unicode() + + if "\n" in r.buffer[r.pos :] or ( + r.more_lines is not None and r.more_lines(text) + ): + def _newline_before_pos(): + before_idx = r.pos - 1 + while before_idx > 0 and text[before_idx].isspace(): + before_idx -= 1 + return text[before_idx : r.pos].count("\n") > 0 + + # if there's already a new line before the cursor then + # even if the cursor is followed by whitespace, we assume + # the user is trying to terminate the block + if _newline_before_pos() and text[r.pos:].isspace(): + self.finish = True + return + + # auto-indent the next line like the previous line + prevlinestart, indent = _get_previous_line_indent(r.buffer, r.pos) + r.insert("\n") + if not self.reader.paste_mode: + if indent: + for i in range(prevlinestart, prevlinestart + indent): + r.insert(r.buffer[i]) + r.update_last_used_indentation() + if _should_auto_indent(r.buffer, r.pos): + if r.last_used_indentation is not None: + indentation = r.last_used_indentation + else: + # default + indentation = " " * 4 + r.insert(indentation) + elif not self.reader.paste_mode: + self.finish = True + else: + r.insert("\n") + + +class backspace_dedent(commands.Command): + def do(self) -> None: + r = self.reader + b = r.buffer + if r.pos > 0: + repeat = 1 + if b[r.pos - 1] != "\n": + indent = _get_this_line_indent(b, r.pos) + if indent > 0: + ls = r.pos - indent + while ls > 0: + ls, pi = _get_previous_line_indent(b, ls - 1) + if pi is not None and pi < indent: + repeat = indent - pi + break + r.pos -= repeat + del b[r.pos : r.pos + repeat] + r.dirty = True + else: + self.reader.error("can't backspace at start") + + +# ____________________________________________________________ + + +@dataclass(slots=True) +class _ReadlineWrapper: + f_in: int = -1 + f_out: int = -1 + reader: ReadlineAlikeReader | None = field(default=None, repr=False) + saved_history_length: int = -1 + startup_hook: Callback | None = None + config: ReadlineConfig = field(default_factory=ReadlineConfig, repr=False) + + def __post_init__(self) -> None: + if self.f_in == -1: + self.f_in = os.dup(0) + if self.f_out == -1: + self.f_out = os.dup(1) + + def get_reader(self) -> ReadlineAlikeReader: + if self.reader is None: + console = Console(self.f_in, self.f_out, encoding=ENCODING) + self.reader = ReadlineAlikeReader(console=console, config=self.config) + return self.reader + + def input(self, prompt: object = "") -> str: + try: + reader = self.get_reader() + except _error: + assert raw_input is not None + return raw_input(prompt) + prompt_str = str(prompt) + reader.ps1 = prompt_str + sys.audit("builtins.input", prompt_str) + result = reader.readline(startup_hook=self.startup_hook) + sys.audit("builtins.input/result", result) + return result + + def multiline_input(self, more_lines: MoreLinesCallable, ps1: str, ps2: str) -> str: + """Read an input on possibly multiple lines, asking for more + lines as long as 'more_lines(unicodetext)' returns an object whose + boolean value is true. + """ + reader = self.get_reader() + saved = reader.more_lines + try: + reader.more_lines = more_lines + reader.ps1 = ps1 + reader.ps2 = ps1 + reader.ps3 = ps2 + reader.ps4 = "" + with warnings.catch_warnings(action="ignore"): + return reader.readline() + finally: + reader.more_lines = saved + reader.paste_mode = False + + def parse_and_bind(self, string: str) -> None: + pass # XXX we don't support parsing GNU-readline-style init files + + def set_completer(self, function: Completer | None = None) -> None: + self.config.readline_completer = function + + def get_completer(self) -> Completer | None: + return self.config.readline_completer + + def set_completer_delims(self, delimiters: Collection[str]) -> None: + self.config.completer_delims = frozenset(delimiters) + + def get_completer_delims(self) -> str: + return "".join(sorted(self.config.completer_delims)) + + def _histline(self, line: str) -> str: + line = line.rstrip("\n") + return line + + def get_history_length(self) -> int: + return self.saved_history_length + + def set_history_length(self, length: int) -> None: + self.saved_history_length = length + + def get_current_history_length(self) -> int: + return len(self.get_reader().history) + + def read_history_file(self, filename: str = gethistoryfile()) -> None: + # multiline extension (really a hack) for the end of lines that + # are actually continuations inside a single multiline_input() + # history item: we use \r\n instead of just \n. If the history + # file is passed to GNU readline, the extra \r are just ignored. + history = self.get_reader().history + + with open(os.path.expanduser(filename), 'rb') as f: + is_editline = f.readline().startswith(b"_HiStOrY_V2_") + if is_editline: + encoding = "unicode-escape" + else: + f.seek(0) + encoding = "utf-8" + + lines = [line.decode(encoding, errors='replace') for line in f.read().split(b'\n')] + buffer = [] + for line in lines: + if line.endswith("\r"): + buffer.append(line+'\n') + else: + line = self._histline(line) + if buffer: + line = self._histline("".join(buffer).replace("\r", "") + line) + del buffer[:] + if line: + history.append(line) + + def write_history_file(self, filename: str = gethistoryfile()) -> None: + maxlength = self.saved_history_length + history = self.get_reader().get_trimmed_history(maxlength) + f = open(os.path.expanduser(filename), "w", + encoding="utf-8", newline="\n") + with f: + for entry in history: + entry = entry.replace("\n", "\r\n") # multiline history support + f.write(entry + "\n") + + def clear_history(self) -> None: + del self.get_reader().history[:] + + def get_history_item(self, index: int) -> str | None: + history = self.get_reader().history + if 1 <= index <= len(history): + return history[index - 1] + else: + return None # like readline.c + + def remove_history_item(self, index: int) -> None: + history = self.get_reader().history + if 0 <= index < len(history): + del history[index] + else: + raise ValueError("No history item at position %d" % index) + # like readline.c + + def replace_history_item(self, index: int, line: str) -> None: + history = self.get_reader().history + if 0 <= index < len(history): + history[index] = self._histline(line) + else: + raise ValueError("No history item at position %d" % index) + # like readline.c + + def add_history(self, line: str) -> None: + self.get_reader().history.append(self._histline(line)) + + def set_startup_hook(self, function: Callback | None = None) -> None: + self.startup_hook = function + + def get_line_buffer(self) -> str: + return self.get_reader().get_unicode() + + def _get_idxs(self) -> tuple[int, int]: + start = cursor = self.get_reader().pos + buf = self.get_line_buffer() + for i in range(cursor - 1, -1, -1): + if buf[i] in self.get_completer_delims(): + break + start = i + return start, cursor + + def get_begidx(self) -> int: + return self._get_idxs()[0] + + def get_endidx(self) -> int: + return self._get_idxs()[1] + + def insert_text(self, text: str) -> None: + self.get_reader().insert(text) + + +_wrapper = _ReadlineWrapper() + +# ____________________________________________________________ +# Public API + +parse_and_bind = _wrapper.parse_and_bind +set_completer = _wrapper.set_completer +get_completer = _wrapper.get_completer +set_completer_delims = _wrapper.set_completer_delims +get_completer_delims = _wrapper.get_completer_delims +get_history_length = _wrapper.get_history_length +set_history_length = _wrapper.set_history_length +get_current_history_length = _wrapper.get_current_history_length +read_history_file = _wrapper.read_history_file +write_history_file = _wrapper.write_history_file +clear_history = _wrapper.clear_history +get_history_item = _wrapper.get_history_item +remove_history_item = _wrapper.remove_history_item +replace_history_item = _wrapper.replace_history_item +add_history = _wrapper.add_history +set_startup_hook = _wrapper.set_startup_hook +get_line_buffer = _wrapper.get_line_buffer +get_begidx = _wrapper.get_begidx +get_endidx = _wrapper.get_endidx +insert_text = _wrapper.insert_text + +# Extension +multiline_input = _wrapper.multiline_input + +# Internal hook +_get_reader = _wrapper.get_reader + +# ____________________________________________________________ +# Stubs + + +def _make_stub(_name: str, _ret: object) -> None: + def stub(*args: object, **kwds: object) -> None: + import warnings + + warnings.warn("readline.%s() not implemented" % _name, stacklevel=2) + + stub.__name__ = _name + globals()[_name] = stub + + +for _name, _ret in [ + ("read_init_file", None), + ("redisplay", None), + ("set_pre_input_hook", None), +]: + assert _name not in globals(), _name + _make_stub(_name, _ret) + +# ____________________________________________________________ + + +def _setup(namespace: Mapping[str, Any]) -> None: + global raw_input + if raw_input is not None: + return # don't run _setup twice + + try: + f_in = sys.stdin.fileno() + f_out = sys.stdout.fileno() + except (AttributeError, ValueError): + return + if not os.isatty(f_in) or not os.isatty(f_out): + return + + _wrapper.f_in = f_in + _wrapper.f_out = f_out + + # set up namespace in rlcompleter, which requires it to be a bona fide dict + if not isinstance(namespace, dict): + namespace = dict(namespace) + _wrapper.config.readline_completer = RLCompleter(namespace).complete + + # this is not really what readline.c does. Better than nothing I guess + import builtins + raw_input = builtins.input + builtins.input = _wrapper.input + + +raw_input: Callable[[object], str] | None = None diff --git a/Lib/_pyrepl/simple_interact.py b/Lib/_pyrepl/simple_interact.py new file mode 100644 index 0000000000..66e66eae7e --- /dev/null +++ b/Lib/_pyrepl/simple_interact.py @@ -0,0 +1,167 @@ +# Copyright 2000-2010 Michael Hudson-Doyle +# Armin Rigo +# +# All Rights Reserved +# +# +# Permission to use, copy, modify, and distribute this software and +# its documentation for any purpose is hereby granted without fee, +# provided that the above copyright notice appear in all copies and +# that both that copyright notice and this permission notice appear in +# supporting documentation. +# +# THE AUTHOR MICHAEL HUDSON DISCLAIMS ALL WARRANTIES WITH REGARD TO +# THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +# AND FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, +# INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER +# RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF +# CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN +# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +"""This is an alternative to python_reader which tries to emulate +the CPython prompt as closely as possible, with the exception of +allowing multiline input and multiline history entries. +""" + +from __future__ import annotations + +import _sitebuiltins +import linecache +import functools +import os +import sys +import code + +from .readline import _get_reader, multiline_input + +TYPE_CHECKING = False + +if TYPE_CHECKING: + from typing import Any + + +_error: tuple[type[Exception], ...] | type[Exception] +try: + from .unix_console import _error +except ModuleNotFoundError: + from .windows_console import _error + +def check() -> str: + """Returns the error message if there is a problem initializing the state.""" + try: + _get_reader() + except _error as e: + if term := os.environ.get("TERM", ""): + term = f"; TERM={term}" + return str(str(e) or repr(e) or "unknown error") + term + return "" + + +def _strip_final_indent(text: str) -> str: + # kill spaces and tabs at the end, but only if they follow '\n'. + # meant to remove the auto-indentation only (although it would of + # course also remove explicitly-added indentation). + short = text.rstrip(" \t") + n = len(short) + if n > 0 and text[n - 1] == "\n": + return short + return text + + +def _clear_screen(): + reader = _get_reader() + reader.scheduled_commands.append("clear_screen") + + +REPL_COMMANDS = { + "exit": _sitebuiltins.Quitter('exit', ''), + "quit": _sitebuiltins.Quitter('quit' ,''), + "copyright": _sitebuiltins._Printer('copyright', sys.copyright), + "help": _sitebuiltins._Helper(), + "clear": _clear_screen, + "\x1a": _sitebuiltins.Quitter('\x1a', ''), +} + + +def _more_lines(console: code.InteractiveConsole, unicodetext: str) -> bool: + # ooh, look at the hack: + src = _strip_final_indent(unicodetext) + try: + code = console.compile(src, "", "single") + except (OverflowError, SyntaxError, ValueError): + lines = src.splitlines(keepends=True) + if len(lines) == 1: + return False + + last_line = lines[-1] + was_indented = last_line.startswith((" ", "\t")) + not_empty = last_line.strip() != "" + incomplete = not last_line.endswith("\n") + return (was_indented or not_empty) and incomplete + else: + return code is None + + +def run_multiline_interactive_console( + console: code.InteractiveConsole, + *, + future_flags: int = 0, +) -> None: + from .readline import _setup + _setup(console.locals) + if future_flags: + console.compile.compiler.flags |= future_flags + + more_lines = functools.partial(_more_lines, console) + input_n = 0 + + def maybe_run_command(statement: str) -> bool: + statement = statement.strip() + if statement in console.locals or statement not in REPL_COMMANDS: + return False + + reader = _get_reader() + reader.history.pop() # skip internal commands in history + command = REPL_COMMANDS[statement] + if callable(command): + # Make sure that history does not change because of commands + with reader.suspend_history(): + command() + return True + return False + + while 1: + try: + try: + sys.stdout.flush() + except Exception: + pass + + ps1 = getattr(sys, "ps1", ">>> ") + ps2 = getattr(sys, "ps2", "... ") + try: + statement = multiline_input(more_lines, ps1, ps2) + except EOFError: + break + + if maybe_run_command(statement): + continue + + input_name = f"" + linecache._register_code(input_name, statement, "") # type: ignore[attr-defined] + more = console.push(_strip_final_indent(statement), filename=input_name, _symbol="single") # type: ignore[call-arg] + assert not more + input_n += 1 + except KeyboardInterrupt: + r = _get_reader() + if r.input_trans is r.isearch_trans: + r.do_cmd(("isearch-end", [""])) + r.pos = len(r.get_unicode()) + r.dirty = True + r.refresh() + r.in_bracketed_paste = False + console.write("\nKeyboardInterrupt\n") + console.resetbuffer() + except MemoryError: + console.write("\nMemoryError\n") + console.resetbuffer() diff --git a/Lib/_pyrepl/trace.py b/Lib/_pyrepl/trace.py new file mode 100644 index 0000000000..a8eb2433cd --- /dev/null +++ b/Lib/_pyrepl/trace.py @@ -0,0 +1,21 @@ +from __future__ import annotations + +import os + +# types +if False: + from typing import IO + + +trace_file: IO[str] | None = None +if trace_filename := os.environ.get("PYREPL_TRACE"): + trace_file = open(trace_filename, "a") + + +def trace(line: str, *k: object, **kw: object) -> None: + if trace_file is None: + return + if k or kw: + line = line.format(*k, **kw) + trace_file.write(line + "\n") + trace_file.flush() diff --git a/Lib/_pyrepl/types.py b/Lib/_pyrepl/types.py new file mode 100644 index 0000000000..f9d48b828c --- /dev/null +++ b/Lib/_pyrepl/types.py @@ -0,0 +1,8 @@ +from collections.abc import Callable, Iterator + +Callback = Callable[[], object] +SimpleContextManager = Iterator[None] +KeySpec = str # like r"\C-c" +CommandName = str # like "interrupt" +EventTuple = tuple[CommandName, str] +Completer = Callable[[str, int], str | None] diff --git a/Lib/_pyrepl/unix_console.py b/Lib/_pyrepl/unix_console.py new file mode 100644 index 0000000000..e69c96b115 --- /dev/null +++ b/Lib/_pyrepl/unix_console.py @@ -0,0 +1,810 @@ +# Copyright 2000-2010 Michael Hudson-Doyle +# Antonio Cuni +# Armin Rigo +# +# All Rights Reserved +# +# +# Permission to use, copy, modify, and distribute this software and +# its documentation for any purpose is hereby granted without fee, +# provided that the above copyright notice appear in all copies and +# that both that copyright notice and this permission notice appear in +# supporting documentation. +# +# THE AUTHOR MICHAEL HUDSON DISCLAIMS ALL WARRANTIES WITH REGARD TO +# THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +# AND FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, +# INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER +# RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF +# CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN +# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +from __future__ import annotations + +import errno +import os +import re +import select +import signal +import struct +import termios +import time +import platform +from fcntl import ioctl + +from . import curses +from .console import Console, Event +from .fancy_termios import tcgetattr, tcsetattr +from .trace import trace +from .unix_eventqueue import EventQueue +from .utils import wlen + + +TYPE_CHECKING = False + +# types +if TYPE_CHECKING: + from typing import IO, Literal, overload +else: + overload = lambda func: None + + +class InvalidTerminal(RuntimeError): + pass + + +_error = (termios.error, curses.error, InvalidTerminal) + +SIGWINCH_EVENT = "repaint" + +FIONREAD = getattr(termios, "FIONREAD", None) +TIOCGWINSZ = getattr(termios, "TIOCGWINSZ", None) + +# ------------ start of baudrate definitions ------------ + +# Add (possibly) missing baudrates (check termios man page) to termios + + +def add_baudrate_if_supported(dictionary: dict[int, int], rate: int) -> None: + baudrate_name = "B%d" % rate + if hasattr(termios, baudrate_name): + dictionary[getattr(termios, baudrate_name)] = rate + + +# Check the termios man page (Line speed) to know where these +# values come from. +potential_baudrates = [ + 0, + 110, + 115200, + 1200, + 134, + 150, + 1800, + 19200, + 200, + 230400, + 2400, + 300, + 38400, + 460800, + 4800, + 50, + 57600, + 600, + 75, + 9600, +] + +ratedict: dict[int, int] = {} +for rate in potential_baudrates: + add_baudrate_if_supported(ratedict, rate) + +# Clean up variables to avoid unintended usage +del rate, add_baudrate_if_supported + +# ------------ end of baudrate definitions ------------ + +delayprog = re.compile(b"\\$<([0-9]+)((?:/|\\*){0,2})>") + +try: + poll: type[select.poll] = select.poll +except AttributeError: + # this is exactly the minumum necessary to support what we + # do with poll objects + class MinimalPoll: + def __init__(self): + pass + + def register(self, fd, flag): + self.fd = fd + # note: The 'timeout' argument is received as *milliseconds* + def poll(self, timeout: float | None = None) -> list[int]: + if timeout is None: + r, w, e = select.select([self.fd], [], []) + else: + r, w, e = select.select([self.fd], [], [], timeout/1000) + return r + + poll = MinimalPoll # type: ignore[assignment] + + +class UnixConsole(Console): + def __init__( + self, + f_in: IO[bytes] | int = 0, + f_out: IO[bytes] | int = 1, + term: str = "", + encoding: str = "", + ): + """ + Initialize the UnixConsole. + + Parameters: + - f_in (int or file-like object): Input file descriptor or object. + - f_out (int or file-like object): Output file descriptor or object. + - term (str): Terminal name. + - encoding (str): Encoding to use for I/O operations. + """ + super().__init__(f_in, f_out, term, encoding) + + self.pollob = poll() + self.pollob.register(self.input_fd, select.POLLIN) + self.input_buffer = b"" + self.input_buffer_pos = 0 + curses.setupterm(term or None, self.output_fd) + self.term = term + + @overload + def _my_getstr(cap: str, optional: Literal[False] = False) -> bytes: ... + + @overload + def _my_getstr(cap: str, optional: bool) -> bytes | None: ... + + def _my_getstr(cap: str, optional: bool = False) -> bytes | None: + r = curses.tigetstr(cap) + if not optional and r is None: + raise InvalidTerminal( + f"terminal doesn't have the required {cap} capability" + ) + return r + + self._bel = _my_getstr("bel") + self._civis = _my_getstr("civis", optional=True) + self._clear = _my_getstr("clear") + self._cnorm = _my_getstr("cnorm", optional=True) + self._cub = _my_getstr("cub", optional=True) + self._cub1 = _my_getstr("cub1", optional=True) + self._cud = _my_getstr("cud", optional=True) + self._cud1 = _my_getstr("cud1", optional=True) + self._cuf = _my_getstr("cuf", optional=True) + self._cuf1 = _my_getstr("cuf1", optional=True) + self._cup = _my_getstr("cup") + self._cuu = _my_getstr("cuu", optional=True) + self._cuu1 = _my_getstr("cuu1", optional=True) + self._dch1 = _my_getstr("dch1", optional=True) + self._dch = _my_getstr("dch", optional=True) + self._el = _my_getstr("el") + self._hpa = _my_getstr("hpa", optional=True) + self._ich = _my_getstr("ich", optional=True) + self._ich1 = _my_getstr("ich1", optional=True) + self._ind = _my_getstr("ind", optional=True) + self._pad = _my_getstr("pad", optional=True) + self._ri = _my_getstr("ri", optional=True) + self._rmkx = _my_getstr("rmkx", optional=True) + self._smkx = _my_getstr("smkx", optional=True) + + self.__setup_movement() + + self.event_queue = EventQueue(self.input_fd, self.encoding) + self.cursor_visible = 1 + + def more_in_buffer(self) -> bool: + return bool( + self.input_buffer + and self.input_buffer_pos < len(self.input_buffer) + ) + + def __read(self, n: int) -> bytes: + if not self.more_in_buffer(): + self.input_buffer = os.read(self.input_fd, 10000) + + ret = self.input_buffer[self.input_buffer_pos : self.input_buffer_pos + n] + self.input_buffer_pos += len(ret) + if self.input_buffer_pos >= len(self.input_buffer): + self.input_buffer = b"" + self.input_buffer_pos = 0 + return ret + + + def change_encoding(self, encoding: str) -> None: + """ + Change the encoding used for I/O operations. + + Parameters: + - encoding (str): New encoding to use. + """ + self.encoding = encoding + + def refresh(self, screen, c_xy): + """ + Refresh the console screen. + + Parameters: + - screen (list): List of strings representing the screen contents. + - c_xy (tuple): Cursor position (x, y) on the screen. + """ + cx, cy = c_xy + if not self.__gone_tall: + while len(self.screen) < min(len(screen), self.height): + self.__hide_cursor() + self.__move(0, len(self.screen) - 1) + self.__write("\n") + self.posxy = 0, len(self.screen) + self.screen.append("") + else: + while len(self.screen) < len(screen): + self.screen.append("") + + if len(screen) > self.height: + self.__gone_tall = 1 + self.__move = self.__move_tall + + px, py = self.posxy + old_offset = offset = self.__offset + height = self.height + + # we make sure the cursor is on the screen, and that we're + # using all of the screen if we can + if cy < offset: + offset = cy + elif cy >= offset + height: + offset = cy - height + 1 + elif offset > 0 and len(screen) < offset + height: + offset = max(len(screen) - height, 0) + screen.append("") + + oldscr = self.screen[old_offset : old_offset + height] + newscr = screen[offset : offset + height] + + # use hardware scrolling if we have it. + if old_offset > offset and self._ri: + self.__hide_cursor() + self.__write_code(self._cup, 0, 0) + self.posxy = 0, old_offset + for i in range(old_offset - offset): + self.__write_code(self._ri) + oldscr.pop(-1) + oldscr.insert(0, "") + elif old_offset < offset and self._ind: + self.__hide_cursor() + self.__write_code(self._cup, self.height - 1, 0) + self.posxy = 0, old_offset + self.height - 1 + for i in range(offset - old_offset): + self.__write_code(self._ind) + oldscr.pop(0) + oldscr.append("") + + self.__offset = offset + + for ( + y, + oldline, + newline, + ) in zip(range(offset, offset + height), oldscr, newscr): + if oldline != newline: + self.__write_changed_line(y, oldline, newline, px) + + y = len(newscr) + while y < len(oldscr): + self.__hide_cursor() + self.__move(0, y) + self.posxy = 0, y + self.__write_code(self._el) + y += 1 + + self.__show_cursor() + + self.screen = screen.copy() + self.move_cursor(cx, cy) + self.flushoutput() + + def move_cursor(self, x, y): + """ + Move the cursor to the specified position on the screen. + + Parameters: + - x (int): X coordinate. + - y (int): Y coordinate. + """ + if y < self.__offset or y >= self.__offset + self.height: + self.event_queue.insert(Event("scroll", None)) + else: + self.__move(x, y) + self.posxy = x, y + self.flushoutput() + + def prepare(self): + """ + Prepare the console for input/output operations. + """ + self.__svtermstate = tcgetattr(self.input_fd) + raw = self.__svtermstate.copy() + raw.iflag &= ~(termios.INPCK | termios.ISTRIP | termios.IXON) + raw.oflag &= ~(termios.OPOST) + raw.cflag &= ~(termios.CSIZE | termios.PARENB) + raw.cflag |= termios.CS8 + raw.iflag |= termios.BRKINT + raw.lflag &= ~(termios.ICANON | termios.ECHO | termios.IEXTEN) + raw.lflag |= termios.ISIG + raw.cc[termios.VMIN] = 1 + raw.cc[termios.VTIME] = 0 + tcsetattr(self.input_fd, termios.TCSADRAIN, raw) + + # In macOS terminal we need to deactivate line wrap via ANSI escape code + if platform.system() == "Darwin" and os.getenv("TERM_PROGRAM") == "Apple_Terminal": + os.write(self.output_fd, b"\033[?7l") + + self.screen = [] + self.height, self.width = self.getheightwidth() + + self.__buffer = [] + + self.posxy = 0, 0 + self.__gone_tall = 0 + self.__move = self.__move_short + self.__offset = 0 + + self.__maybe_write_code(self._smkx) + + try: + self.old_sigwinch = signal.signal(signal.SIGWINCH, self.__sigwinch) + except ValueError: + pass + + self.__enable_bracketed_paste() + + def restore(self): + """ + Restore the console to the default state + """ + self.__disable_bracketed_paste() + self.__maybe_write_code(self._rmkx) + self.flushoutput() + tcsetattr(self.input_fd, termios.TCSADRAIN, self.__svtermstate) + + if platform.system() == "Darwin" and os.getenv("TERM_PROGRAM") == "Apple_Terminal": + os.write(self.output_fd, b"\033[?7h") + + if hasattr(self, "old_sigwinch"): + signal.signal(signal.SIGWINCH, self.old_sigwinch) + del self.old_sigwinch + + def push_char(self, char: int | bytes) -> None: + """ + Push a character to the console event queue. + """ + trace("push char {char!r}", char=char) + self.event_queue.push(char) + + def get_event(self, block: bool = True) -> Event | None: + """ + Get an event from the console event queue. + + Parameters: + - block (bool): Whether to block until an event is available. + + Returns: + - Event: Event object from the event queue. + """ + if not block and not self.wait(timeout=0): + return None + + while self.event_queue.empty(): + while True: + try: + self.push_char(self.__read(1)) + except OSError as err: + if err.errno == errno.EINTR: + if not self.event_queue.empty(): + return self.event_queue.get() + else: + continue + else: + raise + else: + break + return self.event_queue.get() + + def wait(self, timeout: float | None = None) -> bool: + """ + Wait for events on the console. + """ + return ( + not self.event_queue.empty() + or self.more_in_buffer() + or bool(self.pollob.poll(timeout)) + ) + + def set_cursor_vis(self, visible): + """ + Set the visibility of the cursor. + + Parameters: + - visible (bool): Visibility flag. + """ + if visible: + self.__show_cursor() + else: + self.__hide_cursor() + + if TIOCGWINSZ: + + def getheightwidth(self): + """ + Get the height and width of the console. + + Returns: + - tuple: Height and width of the console. + """ + try: + return int(os.environ["LINES"]), int(os.environ["COLUMNS"]) + except (KeyError, TypeError, ValueError): + try: + size = ioctl(self.input_fd, TIOCGWINSZ, b"\000" * 8) + except OSError: + return 25, 80 + height, width = struct.unpack("hhhh", size)[0:2] + if not height: + return 25, 80 + return height, width + + else: + + def getheightwidth(self): + """ + Get the height and width of the console. + + Returns: + - tuple: Height and width of the console. + """ + try: + return int(os.environ["LINES"]), int(os.environ["COLUMNS"]) + except (KeyError, TypeError, ValueError): + return 25, 80 + + def forgetinput(self): + """ + Discard any pending input on the console. + """ + termios.tcflush(self.input_fd, termios.TCIFLUSH) + + def flushoutput(self): + """ + Flush the output buffer. + """ + for text, iscode in self.__buffer: + if iscode: + self.__tputs(text) + else: + os.write(self.output_fd, text.encode(self.encoding, "replace")) + del self.__buffer[:] + + def finish(self): + """ + Finish console operations and flush the output buffer. + """ + y = len(self.screen) - 1 + while y >= 0 and not self.screen[y]: + y -= 1 + self.__move(0, min(y, self.height + self.__offset - 1)) + self.__write("\n\r") + self.flushoutput() + + def beep(self): + """ + Emit a beep sound. + """ + self.__maybe_write_code(self._bel) + self.flushoutput() + + if FIONREAD: + + def getpending(self): + """ + Get pending events from the console event queue. + + Returns: + - Event: Pending event from the event queue. + """ + e = Event("key", "", b"") + + while not self.event_queue.empty(): + e2 = self.event_queue.get() + e.data += e2.data + e.raw += e.raw + + amount = struct.unpack("i", ioctl(self.input_fd, FIONREAD, b"\0\0\0\0"))[0] + raw = self.__read(amount) + data = str(raw, self.encoding, "replace") + e.data += data + e.raw += raw + return e + + else: + + def getpending(self): + """ + Get pending events from the console event queue. + + Returns: + - Event: Pending event from the event queue. + """ + e = Event("key", "", b"") + + while not self.event_queue.empty(): + e2 = self.event_queue.get() + e.data += e2.data + e.raw += e.raw + + amount = 10000 + raw = self.__read(amount) + data = str(raw, self.encoding, "replace") + e.data += data + e.raw += raw + return e + + def clear(self): + """ + Clear the console screen. + """ + self.__write_code(self._clear) + self.__gone_tall = 1 + self.__move = self.__move_tall + self.posxy = 0, 0 + self.screen = [] + + @property + def input_hook(self): + try: + import posix + except ImportError: + return None + if posix._is_inputhook_installed(): + return posix._inputhook + + def __enable_bracketed_paste(self) -> None: + os.write(self.output_fd, b"\x1b[?2004h") + + def __disable_bracketed_paste(self) -> None: + os.write(self.output_fd, b"\x1b[?2004l") + + def __setup_movement(self): + """ + Set up the movement functions based on the terminal capabilities. + """ + if 0 and self._hpa: # hpa don't work in windows telnet :-( + self.__move_x = self.__move_x_hpa + elif self._cub and self._cuf: + self.__move_x = self.__move_x_cub_cuf + elif self._cub1 and self._cuf1: + self.__move_x = self.__move_x_cub1_cuf1 + else: + raise RuntimeError("insufficient terminal (horizontal)") + + if self._cuu and self._cud: + self.__move_y = self.__move_y_cuu_cud + elif self._cuu1 and self._cud1: + self.__move_y = self.__move_y_cuu1_cud1 + else: + raise RuntimeError("insufficient terminal (vertical)") + + if self._dch1: + self.dch1 = self._dch1 + elif self._dch: + self.dch1 = curses.tparm(self._dch, 1) + else: + self.dch1 = None + + if self._ich1: + self.ich1 = self._ich1 + elif self._ich: + self.ich1 = curses.tparm(self._ich, 1) + else: + self.ich1 = None + + self.__move = self.__move_short + + def __write_changed_line(self, y, oldline, newline, px_coord): + # this is frustrating; there's no reason to test (say) + # self.dch1 inside the loop -- but alternative ways of + # structuring this function are equally painful (I'm trying to + # avoid writing code generators these days...) + minlen = min(wlen(oldline), wlen(newline)) + x_pos = 0 + x_coord = 0 + + px_pos = 0 + j = 0 + for c in oldline: + if j >= px_coord: + break + j += wlen(c) + px_pos += 1 + + # reuse the oldline as much as possible, but stop as soon as we + # encounter an ESCAPE, because it might be the start of an escape + # sequene + while ( + x_coord < minlen + and oldline[x_pos] == newline[x_pos] + and newline[x_pos] != "\x1b" + ): + x_coord += wlen(newline[x_pos]) + x_pos += 1 + + # if we need to insert a single character right after the first detected change + if oldline[x_pos:] == newline[x_pos + 1 :] and self.ich1: + if ( + y == self.posxy[1] + and x_coord > self.posxy[0] + and oldline[px_pos:x_pos] == newline[px_pos + 1 : x_pos + 1] + ): + x_pos = px_pos + x_coord = px_coord + character_width = wlen(newline[x_pos]) + self.__move(x_coord, y) + self.__write_code(self.ich1) + self.__write(newline[x_pos]) + self.posxy = x_coord + character_width, y + + # if it's a single character change in the middle of the line + elif ( + x_coord < minlen + and oldline[x_pos + 1 :] == newline[x_pos + 1 :] + and wlen(oldline[x_pos]) == wlen(newline[x_pos]) + ): + character_width = wlen(newline[x_pos]) + self.__move(x_coord, y) + self.__write(newline[x_pos]) + self.posxy = x_coord + character_width, y + + # if this is the last character to fit in the line and we edit in the middle of the line + elif ( + self.dch1 + and self.ich1 + and wlen(newline) == self.width + and x_coord < wlen(newline) - 2 + and newline[x_pos + 1 : -1] == oldline[x_pos:-2] + ): + self.__hide_cursor() + self.__move(self.width - 2, y) + self.posxy = self.width - 2, y + self.__write_code(self.dch1) + + character_width = wlen(newline[x_pos]) + self.__move(x_coord, y) + self.__write_code(self.ich1) + self.__write(newline[x_pos]) + self.posxy = character_width + 1, y + + else: + self.__hide_cursor() + self.__move(x_coord, y) + if wlen(oldline) > wlen(newline): + self.__write_code(self._el) + self.__write(newline[x_pos:]) + self.posxy = wlen(newline), y + + if "\x1b" in newline: + # ANSI escape characters are present, so we can't assume + # anything about the position of the cursor. Moving the cursor + # to the left margin should work to get to a known position. + self.move_cursor(0, y) + + def __write(self, text): + self.__buffer.append((text, 0)) + + def __write_code(self, fmt, *args): + self.__buffer.append((curses.tparm(fmt, *args), 1)) + + def __maybe_write_code(self, fmt, *args): + if fmt: + self.__write_code(fmt, *args) + + def __move_y_cuu1_cud1(self, y): + assert self._cud1 is not None + assert self._cuu1 is not None + dy = y - self.posxy[1] + if dy > 0: + self.__write_code(dy * self._cud1) + elif dy < 0: + self.__write_code((-dy) * self._cuu1) + + def __move_y_cuu_cud(self, y): + dy = y - self.posxy[1] + if dy > 0: + self.__write_code(self._cud, dy) + elif dy < 0: + self.__write_code(self._cuu, -dy) + + def __move_x_hpa(self, x: int) -> None: + if x != self.posxy[0]: + self.__write_code(self._hpa, x) + + def __move_x_cub1_cuf1(self, x: int) -> None: + assert self._cuf1 is not None + assert self._cub1 is not None + dx = x - self.posxy[0] + if dx > 0: + self.__write_code(self._cuf1 * dx) + elif dx < 0: + self.__write_code(self._cub1 * (-dx)) + + def __move_x_cub_cuf(self, x: int) -> None: + dx = x - self.posxy[0] + if dx > 0: + self.__write_code(self._cuf, dx) + elif dx < 0: + self.__write_code(self._cub, -dx) + + def __move_short(self, x, y): + self.__move_x(x) + self.__move_y(y) + + def __move_tall(self, x, y): + assert 0 <= y - self.__offset < self.height, y - self.__offset + self.__write_code(self._cup, y - self.__offset, x) + + def __sigwinch(self, signum, frame): + self.height, self.width = self.getheightwidth() + self.event_queue.insert(Event("resize", None)) + + def __hide_cursor(self): + if self.cursor_visible: + self.__maybe_write_code(self._civis) + self.cursor_visible = 0 + + def __show_cursor(self): + if not self.cursor_visible: + self.__maybe_write_code(self._cnorm) + self.cursor_visible = 1 + + def repaint(self): + if not self.__gone_tall: + self.posxy = 0, self.posxy[1] + self.__write("\r") + ns = len(self.screen) * ["\000" * self.width] + self.screen = ns + else: + self.posxy = 0, self.__offset + self.__move(0, self.__offset) + ns = self.height * ["\000" * self.width] + self.screen = ns + + def __tputs(self, fmt, prog=delayprog): + """A Python implementation of the curses tputs function; the + curses one can't really be wrapped in a sane manner. + + I have the strong suspicion that this is complexity that + will never do anyone any good.""" + # using .get() means that things will blow up + # only if the bps is actually needed (which I'm + # betting is pretty unlkely) + bps = ratedict.get(self.__svtermstate.ospeed) + while 1: + m = prog.search(fmt) + if not m: + os.write(self.output_fd, fmt) + break + x, y = m.span() + os.write(self.output_fd, fmt[:x]) + fmt = fmt[y:] + delay = int(m.group(1)) + if b"*" in m.group(2): + delay *= self.height + if self._pad and bps is not None: + nchars = (bps * delay) / 1000 + os.write(self.output_fd, self._pad * nchars) + else: + time.sleep(float(delay) / 1000.0) diff --git a/Lib/_pyrepl/unix_eventqueue.py b/Lib/_pyrepl/unix_eventqueue.py new file mode 100644 index 0000000000..70cfade26e --- /dev/null +++ b/Lib/_pyrepl/unix_eventqueue.py @@ -0,0 +1,152 @@ +# Copyright 2000-2008 Michael Hudson-Doyle +# Armin Rigo +# +# All Rights Reserved +# +# +# Permission to use, copy, modify, and distribute this software and +# its documentation for any purpose is hereby granted without fee, +# provided that the above copyright notice appear in all copies and +# that both that copyright notice and this permission notice appear in +# supporting documentation. +# +# THE AUTHOR MICHAEL HUDSON DISCLAIMS ALL WARRANTIES WITH REGARD TO +# THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +# AND FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, +# INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER +# RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF +# CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN +# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +from collections import deque + +from . import keymap +from .console import Event +from . import curses +from .trace import trace +from termios import tcgetattr, VERASE +import os + + +# Mapping of human-readable key names to their terminal-specific codes +TERMINAL_KEYNAMES = { + "delete": "kdch1", + "down": "kcud1", + "end": "kend", + "enter": "kent", + "home": "khome", + "insert": "kich1", + "left": "kcub1", + "page down": "knp", + "page up": "kpp", + "right": "kcuf1", + "up": "kcuu1", +} + + +# Function keys F1-F20 mapping +TERMINAL_KEYNAMES.update(("f%d" % i, "kf%d" % i) for i in range(1, 21)) + +# Known CTRL-arrow keycodes +CTRL_ARROW_KEYCODES= { + # for xterm, gnome-terminal, xfce terminal, etc. + b'\033[1;5D': 'ctrl left', + b'\033[1;5C': 'ctrl right', + # for rxvt + b'\033Od': 'ctrl left', + b'\033Oc': 'ctrl right', +} + +def get_terminal_keycodes() -> dict[bytes, str]: + """ + Generates a dictionary mapping terminal keycodes to human-readable names. + """ + keycodes = {} + for key, terminal_code in TERMINAL_KEYNAMES.items(): + keycode = curses.tigetstr(terminal_code) + trace('key {key} tiname {terminal_code} keycode {keycode!r}', **locals()) + if keycode: + keycodes[keycode] = key + keycodes.update(CTRL_ARROW_KEYCODES) + return keycodes + +class EventQueue: + def __init__(self, fd: int, encoding: str) -> None: + self.keycodes = get_terminal_keycodes() + if os.isatty(fd): + backspace = tcgetattr(fd)[6][VERASE] + self.keycodes[backspace] = "backspace" + self.compiled_keymap = keymap.compile_keymap(self.keycodes) + self.keymap = self.compiled_keymap + trace("keymap {k!r}", k=self.keymap) + self.encoding = encoding + self.events: deque[Event] = deque() + self.buf = bytearray() + + def get(self) -> Event | None: + """ + Retrieves the next event from the queue. + """ + if self.events: + return self.events.popleft() + else: + return None + + def empty(self) -> bool: + """ + Checks if the queue is empty. + """ + return not self.events + + def flush_buf(self) -> bytearray: + """ + Flushes the buffer and returns its contents. + """ + old = self.buf + self.buf = bytearray() + return old + + def insert(self, event: Event) -> None: + """ + Inserts an event into the queue. + """ + trace('added event {event}', event=event) + self.events.append(event) + + def push(self, char: int | bytes) -> None: + """ + Processes a character by updating the buffer and handling special key mappings. + """ + ord_char = char if isinstance(char, int) else ord(char) + char = bytes(bytearray((ord_char,))) + self.buf.append(ord_char) + if char in self.keymap: + if self.keymap is self.compiled_keymap: + #sanity check, buffer is empty when a special key comes + assert len(self.buf) == 1 + k = self.keymap[char] + trace('found map {k!r}', k=k) + if isinstance(k, dict): + self.keymap = k + else: + self.insert(Event('key', k, self.flush_buf())) + self.keymap = self.compiled_keymap + + elif self.buf and self.buf[0] == 27: # escape + # escape sequence not recognized by our keymap: propagate it + # outside so that i can be recognized as an M-... key (see also + # the docstring in keymap.py + trace('unrecognized escape sequence, propagating...') + self.keymap = self.compiled_keymap + self.insert(Event('key', '\033', bytearray(b'\033'))) + for _c in self.flush_buf()[1:]: + self.push(_c) + + else: + try: + decoded = bytes(self.buf).decode(self.encoding) + except UnicodeError: + return + else: + self.insert(Event('key', decoded, self.flush_buf())) + self.keymap = self.compiled_keymap diff --git a/Lib/_pyrepl/utils.py b/Lib/_pyrepl/utils.py new file mode 100644 index 0000000000..4651717bd7 --- /dev/null +++ b/Lib/_pyrepl/utils.py @@ -0,0 +1,25 @@ +import re +import unicodedata +import functools + +ANSI_ESCAPE_SEQUENCE = re.compile(r"\x1b\[[ -@]*[A-~]") + + +@functools.cache +def str_width(c: str) -> int: + if ord(c) < 128: + return 1 + w = unicodedata.east_asian_width(c) + if w in ('N', 'Na', 'H', 'A'): + return 1 + return 2 + + +def wlen(s: str) -> int: + if len(s) == 1 and s != '\x1a': + return str_width(s) + length = sum(str_width(i) for i in s) + # remove lengths of any escape sequences + sequence = ANSI_ESCAPE_SEQUENCE.findall(s) + ctrl_z_cnt = s.count('\x1a') + return length - sum(len(i) for i in sequence) + ctrl_z_cnt diff --git a/Lib/_pyrepl/windows_console.py b/Lib/_pyrepl/windows_console.py new file mode 100644 index 0000000000..fffadd5e2e --- /dev/null +++ b/Lib/_pyrepl/windows_console.py @@ -0,0 +1,618 @@ +# Copyright 2000-2004 Michael Hudson-Doyle +# +# All Rights Reserved +# +# +# Permission to use, copy, modify, and distribute this software and +# its documentation for any purpose is hereby granted without fee, +# provided that the above copyright notice appear in all copies and +# that both that copyright notice and this permission notice appear in +# supporting documentation. +# +# THE AUTHOR MICHAEL HUDSON DISCLAIMS ALL WARRANTIES WITH REGARD TO +# THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY +# AND FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, +# INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER +# RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF +# CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN +# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +from __future__ import annotations + +import io +import os +import sys +import time +import msvcrt + +from collections import deque +import ctypes +from ctypes.wintypes import ( + _COORD, + WORD, + SMALL_RECT, + BOOL, + HANDLE, + CHAR, + DWORD, + WCHAR, + SHORT, +) +from ctypes import Structure, POINTER, Union +from .console import Event, Console +from .trace import trace +from .utils import wlen + +try: + from ctypes import GetLastError, WinDLL, windll, WinError # type: ignore[attr-defined] +except: + # Keep MyPy happy off Windows + from ctypes import CDLL as WinDLL, cdll as windll + + def GetLastError() -> int: + return 42 + + class WinError(OSError): # type: ignore[no-redef] + def __init__(self, err: int | None, descr: str | None = None) -> None: + self.err = err + self.descr = descr + + +TYPE_CHECKING = False + +if TYPE_CHECKING: + from typing import IO + +# Virtual-Key Codes: https://learn.microsoft.com/en-us/windows/win32/inputdev/virtual-key-codes +VK_MAP: dict[int, str] = { + 0x23: "end", # VK_END + 0x24: "home", # VK_HOME + 0x25: "left", # VK_LEFT + 0x26: "up", # VK_UP + 0x27: "right", # VK_RIGHT + 0x28: "down", # VK_DOWN + 0x2E: "delete", # VK_DELETE + 0x70: "f1", # VK_F1 + 0x71: "f2", # VK_F2 + 0x72: "f3", # VK_F3 + 0x73: "f4", # VK_F4 + 0x74: "f5", # VK_F5 + 0x75: "f6", # VK_F6 + 0x76: "f7", # VK_F7 + 0x77: "f8", # VK_F8 + 0x78: "f9", # VK_F9 + 0x79: "f10", # VK_F10 + 0x7A: "f11", # VK_F11 + 0x7B: "f12", # VK_F12 + 0x7C: "f13", # VK_F13 + 0x7D: "f14", # VK_F14 + 0x7E: "f15", # VK_F15 + 0x7F: "f16", # VK_F16 + 0x80: "f17", # VK_F17 + 0x81: "f18", # VK_F18 + 0x82: "f19", # VK_F19 + 0x83: "f20", # VK_F20 +} + +# Console escape codes: https://learn.microsoft.com/en-us/windows/console/console-virtual-terminal-sequences +ERASE_IN_LINE = "\x1b[K" +MOVE_LEFT = "\x1b[{}D" +MOVE_RIGHT = "\x1b[{}C" +MOVE_UP = "\x1b[{}A" +MOVE_DOWN = "\x1b[{}B" +CLEAR = "\x1b[H\x1b[J" + + +class _error(Exception): + pass + + +class WindowsConsole(Console): + def __init__( + self, + f_in: IO[bytes] | int = 0, + f_out: IO[bytes] | int = 1, + term: str = "", + encoding: str = "", + ): + super().__init__(f_in, f_out, term, encoding) + + SetConsoleMode( + OutHandle, + ENABLE_WRAP_AT_EOL_OUTPUT + | ENABLE_PROCESSED_OUTPUT + | ENABLE_VIRTUAL_TERMINAL_PROCESSING, + ) + self.screen: list[str] = [] + self.width = 80 + self.height = 25 + self.__offset = 0 + self.event_queue: deque[Event] = deque() + try: + self.out = io._WindowsConsoleIO(self.output_fd, "w") # type: ignore[attr-defined] + except ValueError: + # Console I/O is redirected, fallback... + self.out = None + + def refresh(self, screen: list[str], c_xy: tuple[int, int]) -> None: + """ + Refresh the console screen. + + Parameters: + - screen (list): List of strings representing the screen contents. + - c_xy (tuple): Cursor position (x, y) on the screen. + """ + cx, cy = c_xy + + while len(self.screen) < min(len(screen), self.height): + self._hide_cursor() + self._move_relative(0, len(self.screen) - 1) + self.__write("\n") + self.posxy = 0, len(self.screen) + self.screen.append("") + + px, py = self.posxy + old_offset = offset = self.__offset + height = self.height + + # we make sure the cursor is on the screen, and that we're + # using all of the screen if we can + if cy < offset: + offset = cy + elif cy >= offset + height: + offset = cy - height + 1 + scroll_lines = offset - old_offset + + # Scrolling the buffer as the current input is greater than the visible + # portion of the window. We need to scroll the visible portion and the + # entire history + self._scroll(scroll_lines, self._getscrollbacksize()) + self.posxy = self.posxy[0], self.posxy[1] + scroll_lines + self.__offset += scroll_lines + + for i in range(scroll_lines): + self.screen.append("") + elif offset > 0 and len(screen) < offset + height: + offset = max(len(screen) - height, 0) + screen.append("") + + oldscr = self.screen[old_offset : old_offset + height] + newscr = screen[offset : offset + height] + + self.__offset = offset + + self._hide_cursor() + for ( + y, + oldline, + newline, + ) in zip(range(offset, offset + height), oldscr, newscr): + if oldline != newline: + self.__write_changed_line(y, oldline, newline, px) + + y = len(newscr) + while y < len(oldscr): + self._move_relative(0, y) + self.posxy = 0, y + self._erase_to_end() + y += 1 + + self._show_cursor() + + self.screen = screen + self.move_cursor(cx, cy) + + @property + def input_hook(self): + try: + import nt + except ImportError: + return None + if nt._is_inputhook_installed(): + return nt._inputhook + + def __write_changed_line( + self, y: int, oldline: str, newline: str, px_coord: int + ) -> None: + # this is frustrating; there's no reason to test (say) + # self.dch1 inside the loop -- but alternative ways of + # structuring this function are equally painful (I'm trying to + # avoid writing code generators these days...) + minlen = min(wlen(oldline), wlen(newline)) + x_pos = 0 + x_coord = 0 + + px_pos = 0 + j = 0 + for c in oldline: + if j >= px_coord: + break + j += wlen(c) + px_pos += 1 + + # reuse the oldline as much as possible, but stop as soon as we + # encounter an ESCAPE, because it might be the start of an escape + # sequene + while ( + x_coord < minlen + and oldline[x_pos] == newline[x_pos] + and newline[x_pos] != "\x1b" + ): + x_coord += wlen(newline[x_pos]) + x_pos += 1 + + self._hide_cursor() + self._move_relative(x_coord, y) + if wlen(oldline) > wlen(newline): + self._erase_to_end() + + self.__write(newline[x_pos:]) + if wlen(newline) == self.width: + # If we wrapped we want to start at the next line + self._move_relative(0, y + 1) + self.posxy = 0, y + 1 + else: + self.posxy = wlen(newline), y + + if "\x1b" in newline or y != self.posxy[1] or '\x1a' in newline: + # ANSI escape characters are present, so we can't assume + # anything about the position of the cursor. Moving the cursor + # to the left margin should work to get to a known position. + self.move_cursor(0, y) + + def _scroll( + self, top: int, bottom: int, left: int | None = None, right: int | None = None + ) -> None: + scroll_rect = SMALL_RECT() + scroll_rect.Top = SHORT(top) + scroll_rect.Bottom = SHORT(bottom) + scroll_rect.Left = SHORT(0 if left is None else left) + scroll_rect.Right = SHORT( + self.getheightwidth()[1] - 1 if right is None else right + ) + destination_origin = _COORD() + fill_info = CHAR_INFO() + fill_info.UnicodeChar = " " + + if not ScrollConsoleScreenBuffer( + OutHandle, scroll_rect, None, destination_origin, fill_info + ): + raise WinError(GetLastError()) + + def _hide_cursor(self): + self.__write("\x1b[?25l") + + def _show_cursor(self): + self.__write("\x1b[?25h") + + def _enable_blinking(self): + self.__write("\x1b[?12h") + + def _disable_blinking(self): + self.__write("\x1b[?12l") + + def __write(self, text: str) -> None: + if "\x1a" in text: + text = ''.join(["^Z" if x == '\x1a' else x for x in text]) + + if self.out is not None: + self.out.write(text.encode(self.encoding, "replace")) + self.out.flush() + else: + os.write(self.output_fd, text.encode(self.encoding, "replace")) + + @property + def screen_xy(self) -> tuple[int, int]: + info = CONSOLE_SCREEN_BUFFER_INFO() + if not GetConsoleScreenBufferInfo(OutHandle, info): + raise WinError(GetLastError()) + return info.dwCursorPosition.X, info.dwCursorPosition.Y + + def _erase_to_end(self) -> None: + self.__write(ERASE_IN_LINE) + + def prepare(self) -> None: + trace("prepare") + self.screen = [] + self.height, self.width = self.getheightwidth() + + self.posxy = 0, 0 + self.__gone_tall = 0 + self.__offset = 0 + + def restore(self) -> None: + pass + + def _move_relative(self, x: int, y: int) -> None: + """Moves relative to the current posxy""" + dx = x - self.posxy[0] + dy = y - self.posxy[1] + if dx < 0: + self.__write(MOVE_LEFT.format(-dx)) + elif dx > 0: + self.__write(MOVE_RIGHT.format(dx)) + + if dy < 0: + self.__write(MOVE_UP.format(-dy)) + elif dy > 0: + self.__write(MOVE_DOWN.format(dy)) + + def move_cursor(self, x: int, y: int) -> None: + if x < 0 or y < 0: + raise ValueError(f"Bad cursor position {x}, {y}") + + if y < self.__offset or y >= self.__offset + self.height: + self.event_queue.insert(0, Event("scroll", "")) + else: + self._move_relative(x, y) + self.posxy = x, y + + def set_cursor_vis(self, visible: bool) -> None: + if visible: + self._show_cursor() + else: + self._hide_cursor() + + def getheightwidth(self) -> tuple[int, int]: + """Return (height, width) where height and width are the height + and width of the terminal window in characters.""" + info = CONSOLE_SCREEN_BUFFER_INFO() + if not GetConsoleScreenBufferInfo(OutHandle, info): + raise WinError(GetLastError()) + return ( + info.srWindow.Bottom - info.srWindow.Top + 1, + info.srWindow.Right - info.srWindow.Left + 1, + ) + + def _getscrollbacksize(self) -> int: + info = CONSOLE_SCREEN_BUFFER_INFO() + if not GetConsoleScreenBufferInfo(OutHandle, info): + raise WinError(GetLastError()) + + return info.srWindow.Bottom # type: ignore[no-any-return] + + def _read_input(self, block: bool = True) -> INPUT_RECORD | None: + if not block: + events = DWORD() + if not GetNumberOfConsoleInputEvents(InHandle, events): + raise WinError(GetLastError()) + if not events.value: + return None + + rec = INPUT_RECORD() + read = DWORD() + if not ReadConsoleInput(InHandle, rec, 1, read): + raise WinError(GetLastError()) + + return rec + + def get_event(self, block: bool = True) -> Event | None: + """Return an Event instance. Returns None if |block| is false + and there is no event pending, otherwise waits for the + completion of an event.""" + if self.event_queue: + return self.event_queue.pop() + + while True: + rec = self._read_input(block) + if rec is None: + return None + + if rec.EventType == WINDOW_BUFFER_SIZE_EVENT: + return Event("resize", "") + + if rec.EventType != KEY_EVENT or not rec.Event.KeyEvent.bKeyDown: + # Only process keys and keydown events + if block: + continue + return None + + key = rec.Event.KeyEvent.uChar.UnicodeChar + + if rec.Event.KeyEvent.uChar.UnicodeChar == "\r": + # Make enter make unix-like + return Event(evt="key", data="\n", raw=b"\n") + elif rec.Event.KeyEvent.wVirtualKeyCode == 8: + # Turn backspace directly into the command + return Event( + evt="key", + data="backspace", + raw=rec.Event.KeyEvent.uChar.UnicodeChar, + ) + elif rec.Event.KeyEvent.uChar.UnicodeChar == "\x00": + # Handle special keys like arrow keys and translate them into the appropriate command + code = VK_MAP.get(rec.Event.KeyEvent.wVirtualKeyCode) + if code: + return Event( + evt="key", data=code, raw=rec.Event.KeyEvent.uChar.UnicodeChar + ) + if block: + continue + + return None + + return Event(evt="key", data=key, raw=rec.Event.KeyEvent.uChar.UnicodeChar) + + def push_char(self, char: int | bytes) -> None: + """ + Push a character to the console event queue. + """ + raise NotImplementedError("push_char not supported on Windows") + + def beep(self) -> None: + self.__write("\x07") + + def clear(self) -> None: + """Wipe the screen""" + self.__write(CLEAR) + self.posxy = 0, 0 + self.screen = [""] + + def finish(self) -> None: + """Move the cursor to the end of the display and otherwise get + ready for end. XXX could be merged with restore? Hmm.""" + y = len(self.screen) - 1 + while y >= 0 and not self.screen[y]: + y -= 1 + self._move_relative(0, min(y, self.height + self.__offset - 1)) + self.__write("\r\n") + + def flushoutput(self) -> None: + """Flush all output to the screen (assuming there's some + buffering going on somewhere). + + All output on Windows is unbuffered so this is a nop""" + pass + + def forgetinput(self) -> None: + """Forget all pending, but not yet processed input.""" + if not FlushConsoleInputBuffer(InHandle): + raise WinError(GetLastError()) + + def getpending(self) -> Event: + """Return the characters that have been typed but not yet + processed.""" + return Event("key", "", b"") + + def wait(self, timeout: float | None) -> bool: + """Wait for an event.""" + # Poor man's Windows select loop + start_time = time.time() + while True: + if msvcrt.kbhit(): # type: ignore[attr-defined] + return True + if timeout and time.time() - start_time > timeout / 1000: + return False + time.sleep(0.01) + + def repaint(self) -> None: + raise NotImplementedError("No repaint support") + + +# Windows interop +class CONSOLE_SCREEN_BUFFER_INFO(Structure): + _fields_ = [ + ("dwSize", _COORD), + ("dwCursorPosition", _COORD), + ("wAttributes", WORD), + ("srWindow", SMALL_RECT), + ("dwMaximumWindowSize", _COORD), + ] + + +class CONSOLE_CURSOR_INFO(Structure): + _fields_ = [ + ("dwSize", DWORD), + ("bVisible", BOOL), + ] + + +class CHAR_INFO(Structure): + _fields_ = [ + ("UnicodeChar", WCHAR), + ("Attributes", WORD), + ] + + +class Char(Union): + _fields_ = [ + ("UnicodeChar", WCHAR), + ("Char", CHAR), + ] + + +class KeyEvent(ctypes.Structure): + _fields_ = [ + ("bKeyDown", BOOL), + ("wRepeatCount", WORD), + ("wVirtualKeyCode", WORD), + ("wVirtualScanCode", WORD), + ("uChar", Char), + ("dwControlKeyState", DWORD), + ] + + +class WindowsBufferSizeEvent(ctypes.Structure): + _fields_ = [("dwSize", _COORD)] + + +class ConsoleEvent(ctypes.Union): + _fields_ = [ + ("KeyEvent", KeyEvent), + ("WindowsBufferSizeEvent", WindowsBufferSizeEvent), + ] + + +class INPUT_RECORD(Structure): + _fields_ = [("EventType", WORD), ("Event", ConsoleEvent)] + + +KEY_EVENT = 0x01 +FOCUS_EVENT = 0x10 +MENU_EVENT = 0x08 +MOUSE_EVENT = 0x02 +WINDOW_BUFFER_SIZE_EVENT = 0x04 + +ENABLE_PROCESSED_OUTPUT = 0x01 +ENABLE_WRAP_AT_EOL_OUTPUT = 0x02 +ENABLE_VIRTUAL_TERMINAL_PROCESSING = 0x04 + +STD_INPUT_HANDLE = -10 +STD_OUTPUT_HANDLE = -11 + +if sys.platform == "win32": + _KERNEL32 = WinDLL("kernel32", use_last_error=True) + + GetStdHandle = windll.kernel32.GetStdHandle + GetStdHandle.argtypes = [DWORD] + GetStdHandle.restype = HANDLE + + GetConsoleScreenBufferInfo = _KERNEL32.GetConsoleScreenBufferInfo + GetConsoleScreenBufferInfo.argtypes = [ + HANDLE, + ctypes.POINTER(CONSOLE_SCREEN_BUFFER_INFO), + ] + GetConsoleScreenBufferInfo.restype = BOOL + + ScrollConsoleScreenBuffer = _KERNEL32.ScrollConsoleScreenBufferW + ScrollConsoleScreenBuffer.argtypes = [ + HANDLE, + POINTER(SMALL_RECT), + POINTER(SMALL_RECT), + _COORD, + POINTER(CHAR_INFO), + ] + ScrollConsoleScreenBuffer.restype = BOOL + + SetConsoleMode = _KERNEL32.SetConsoleMode + SetConsoleMode.argtypes = [HANDLE, DWORD] + SetConsoleMode.restype = BOOL + + ReadConsoleInput = _KERNEL32.ReadConsoleInputW + ReadConsoleInput.argtypes = [HANDLE, POINTER(INPUT_RECORD), DWORD, POINTER(DWORD)] + ReadConsoleInput.restype = BOOL + + GetNumberOfConsoleInputEvents = _KERNEL32.GetNumberOfConsoleInputEvents + GetNumberOfConsoleInputEvents.argtypes = [HANDLE, POINTER(DWORD)] + GetNumberOfConsoleInputEvents.restype = BOOL + + FlushConsoleInputBuffer = _KERNEL32.FlushConsoleInputBuffer + FlushConsoleInputBuffer.argtypes = [HANDLE] + FlushConsoleInputBuffer.restype = BOOL + + OutHandle = GetStdHandle(STD_OUTPUT_HANDLE) + InHandle = GetStdHandle(STD_INPUT_HANDLE) +else: + + def _win_only(*args, **kwargs): + raise NotImplementedError("Windows only") + + GetStdHandle = _win_only + GetConsoleScreenBufferInfo = _win_only + ScrollConsoleScreenBuffer = _win_only + SetConsoleMode = _win_only + ReadConsoleInput = _win_only + GetNumberOfConsoleInputEvents = _win_only + FlushConsoleInputBuffer = _win_only + OutHandle = 0 + InHandle = 0 diff --git a/Lib/aifc.py b/Lib/aifc.py deleted file mode 100644 index 5254987e22..0000000000 --- a/Lib/aifc.py +++ /dev/null @@ -1,984 +0,0 @@ -"""Stuff to parse AIFF-C and AIFF files. - -Unless explicitly stated otherwise, the description below is true -both for AIFF-C files and AIFF files. - -An AIFF-C file has the following structure. - - +-----------------+ - | FORM | - +-----------------+ - | | - +----+------------+ - | | AIFC | - | +------------+ - | | | - | | . | - | | . | - | | . | - +----+------------+ - -An AIFF file has the string "AIFF" instead of "AIFC". - -A chunk consists of an identifier (4 bytes) followed by a size (4 bytes, -big endian order), followed by the data. The size field does not include -the size of the 8 byte header. - -The following chunk types are recognized. - - FVER - (AIFF-C only). - MARK - <# of markers> (2 bytes) - list of markers: - (2 bytes, must be > 0) - (4 bytes) - ("pstring") - COMM - <# of channels> (2 bytes) - <# of sound frames> (4 bytes) - (2 bytes) - (10 bytes, IEEE 80-bit extended - floating point) - in AIFF-C files only: - (4 bytes) - ("pstring") - SSND - (4 bytes, not used by this program) - (4 bytes, not used by this program) - - -A pstring consists of 1 byte length, a string of characters, and 0 or 1 -byte pad to make the total length even. - -Usage. - -Reading AIFF files: - f = aifc.open(file, 'r') -where file is either the name of a file or an open file pointer. -The open file pointer must have methods read(), seek(), and close(). -In some types of audio files, if the setpos() method is not used, -the seek() method is not necessary. - -This returns an instance of a class with the following public methods: - getnchannels() -- returns number of audio channels (1 for - mono, 2 for stereo) - getsampwidth() -- returns sample width in bytes - getframerate() -- returns sampling frequency - getnframes() -- returns number of audio frames - getcomptype() -- returns compression type ('NONE' for AIFF files) - getcompname() -- returns human-readable version of - compression type ('not compressed' for AIFF files) - getparams() -- returns a namedtuple consisting of all of the - above in the above order - getmarkers() -- get the list of marks in the audio file or None - if there are no marks - getmark(id) -- get mark with the specified id (raises an error - if the mark does not exist) - readframes(n) -- returns at most n frames of audio - rewind() -- rewind to the beginning of the audio stream - setpos(pos) -- seek to the specified position - tell() -- return the current position - close() -- close the instance (make it unusable) -The position returned by tell(), the position given to setpos() and -the position of marks are all compatible and have nothing to do with -the actual position in the file. -The close() method is called automatically when the class instance -is destroyed. - -Writing AIFF files: - f = aifc.open(file, 'w') -where file is either the name of a file or an open file pointer. -The open file pointer must have methods write(), tell(), seek(), and -close(). - -This returns an instance of a class with the following public methods: - aiff() -- create an AIFF file (AIFF-C default) - aifc() -- create an AIFF-C file - setnchannels(n) -- set the number of channels - setsampwidth(n) -- set the sample width - setframerate(n) -- set the frame rate - setnframes(n) -- set the number of frames - setcomptype(type, name) - -- set the compression type and the - human-readable compression type - setparams(tuple) - -- set all parameters at once - setmark(id, pos, name) - -- add specified mark to the list of marks - tell() -- return current position in output file (useful - in combination with setmark()) - writeframesraw(data) - -- write audio frames without pathing up the - file header - writeframes(data) - -- write audio frames and patch up the file header - close() -- patch up the file header and close the - output file -You should set the parameters before the first writeframesraw or -writeframes. The total number of frames does not need to be set, -but when it is set to the correct value, the header does not have to -be patched up. -It is best to first set all parameters, perhaps possibly the -compression type, and then write audio frames using writeframesraw. -When all frames have been written, either call writeframes(b'') or -close() to patch up the sizes in the header. -Marks can be added anytime. If there are any marks, you must call -close() after all frames have been written. -The close() method is called automatically when the class instance -is destroyed. - -When a file is opened with the extension '.aiff', an AIFF file is -written, otherwise an AIFF-C file is written. This default can be -changed by calling aiff() or aifc() before the first writeframes or -writeframesraw. -""" - -import struct -import builtins -import warnings - -__all__ = ["Error", "open"] - - -warnings._deprecated(__name__, remove=(3, 13)) - - -class Error(Exception): - pass - -_AIFC_version = 0xA2805140 # Version 1 of AIFF-C - -def _read_long(file): - try: - return struct.unpack('>l', file.read(4))[0] - except struct.error: - raise EOFError from None - -def _read_ulong(file): - try: - return struct.unpack('>L', file.read(4))[0] - except struct.error: - raise EOFError from None - -def _read_short(file): - try: - return struct.unpack('>h', file.read(2))[0] - except struct.error: - raise EOFError from None - -def _read_ushort(file): - try: - return struct.unpack('>H', file.read(2))[0] - except struct.error: - raise EOFError from None - -def _read_string(file): - length = ord(file.read(1)) - if length == 0: - data = b'' - else: - data = file.read(length) - if length & 1 == 0: - dummy = file.read(1) - return data - -_HUGE_VAL = 1.79769313486231e+308 # See - -def _read_float(f): # 10 bytes - expon = _read_short(f) # 2 bytes - sign = 1 - if expon < 0: - sign = -1 - expon = expon + 0x8000 - himant = _read_ulong(f) # 4 bytes - lomant = _read_ulong(f) # 4 bytes - if expon == himant == lomant == 0: - f = 0.0 - elif expon == 0x7FFF: - f = _HUGE_VAL - else: - expon = expon - 16383 - f = (himant * 0x100000000 + lomant) * pow(2.0, expon - 63) - return sign * f - -def _write_short(f, x): - f.write(struct.pack('>h', x)) - -def _write_ushort(f, x): - f.write(struct.pack('>H', x)) - -def _write_long(f, x): - f.write(struct.pack('>l', x)) - -def _write_ulong(f, x): - f.write(struct.pack('>L', x)) - -def _write_string(f, s): - if len(s) > 255: - raise ValueError("string exceeds maximum pstring length") - f.write(struct.pack('B', len(s))) - f.write(s) - if len(s) & 1 == 0: - f.write(b'\x00') - -def _write_float(f, x): - import math - if x < 0: - sign = 0x8000 - x = x * -1 - else: - sign = 0 - if x == 0: - expon = 0 - himant = 0 - lomant = 0 - else: - fmant, expon = math.frexp(x) - if expon > 16384 or fmant >= 1 or fmant != fmant: # Infinity or NaN - expon = sign|0x7FFF - himant = 0 - lomant = 0 - else: # Finite - expon = expon + 16382 - if expon < 0: # denormalized - fmant = math.ldexp(fmant, expon) - expon = 0 - expon = expon | sign - fmant = math.ldexp(fmant, 32) - fsmant = math.floor(fmant) - himant = int(fsmant) - fmant = math.ldexp(fmant - fsmant, 32) - fsmant = math.floor(fmant) - lomant = int(fsmant) - _write_ushort(f, expon) - _write_ulong(f, himant) - _write_ulong(f, lomant) - -with warnings.catch_warnings(): - warnings.simplefilter("ignore", DeprecationWarning) - from chunk import Chunk -from collections import namedtuple - -_aifc_params = namedtuple('_aifc_params', - 'nchannels sampwidth framerate nframes comptype compname') - -_aifc_params.nchannels.__doc__ = 'Number of audio channels (1 for mono, 2 for stereo)' -_aifc_params.sampwidth.__doc__ = 'Sample width in bytes' -_aifc_params.framerate.__doc__ = 'Sampling frequency' -_aifc_params.nframes.__doc__ = 'Number of audio frames' -_aifc_params.comptype.__doc__ = 'Compression type ("NONE" for AIFF files)' -_aifc_params.compname.__doc__ = ("""\ -A human-readable version of the compression type -('not compressed' for AIFF files)""") - - -class Aifc_read: - # Variables used in this class: - # - # These variables are available to the user though appropriate - # methods of this class: - # _file -- the open file with methods read(), close(), and seek() - # set through the __init__() method - # _nchannels -- the number of audio channels - # available through the getnchannels() method - # _nframes -- the number of audio frames - # available through the getnframes() method - # _sampwidth -- the number of bytes per audio sample - # available through the getsampwidth() method - # _framerate -- the sampling frequency - # available through the getframerate() method - # _comptype -- the AIFF-C compression type ('NONE' if AIFF) - # available through the getcomptype() method - # _compname -- the human-readable AIFF-C compression type - # available through the getcomptype() method - # _markers -- the marks in the audio file - # available through the getmarkers() and getmark() - # methods - # _soundpos -- the position in the audio stream - # available through the tell() method, set through the - # setpos() method - # - # These variables are used internally only: - # _version -- the AIFF-C version number - # _decomp -- the decompressor from builtin module cl - # _comm_chunk_read -- 1 iff the COMM chunk has been read - # _aifc -- 1 iff reading an AIFF-C file - # _ssnd_seek_needed -- 1 iff positioned correctly in audio - # file for readframes() - # _ssnd_chunk -- instantiation of a chunk class for the SSND chunk - # _framesize -- size of one frame in the file - - _file = None # Set here since __del__ checks it - - def initfp(self, file): - self._version = 0 - self._convert = None - self._markers = [] - self._soundpos = 0 - self._file = file - chunk = Chunk(file) - if chunk.getname() != b'FORM': - raise Error('file does not start with FORM id') - formdata = chunk.read(4) - if formdata == b'AIFF': - self._aifc = 0 - elif formdata == b'AIFC': - self._aifc = 1 - else: - raise Error('not an AIFF or AIFF-C file') - self._comm_chunk_read = 0 - self._ssnd_chunk = None - while 1: - self._ssnd_seek_needed = 1 - try: - chunk = Chunk(self._file) - except EOFError: - break - chunkname = chunk.getname() - if chunkname == b'COMM': - self._read_comm_chunk(chunk) - self._comm_chunk_read = 1 - elif chunkname == b'SSND': - self._ssnd_chunk = chunk - dummy = chunk.read(8) - self._ssnd_seek_needed = 0 - elif chunkname == b'FVER': - self._version = _read_ulong(chunk) - elif chunkname == b'MARK': - self._readmark(chunk) - chunk.skip() - if not self._comm_chunk_read or not self._ssnd_chunk: - raise Error('COMM chunk and/or SSND chunk missing') - - def __init__(self, f): - if isinstance(f, str): - file_object = builtins.open(f, 'rb') - try: - self.initfp(file_object) - except: - file_object.close() - raise - else: - # assume it is an open file object already - self.initfp(f) - - def __enter__(self): - return self - - def __exit__(self, *args): - self.close() - - # - # User visible methods. - # - def getfp(self): - return self._file - - def rewind(self): - self._ssnd_seek_needed = 1 - self._soundpos = 0 - - def close(self): - file = self._file - if file is not None: - self._file = None - file.close() - - def tell(self): - return self._soundpos - - def getnchannels(self): - return self._nchannels - - def getnframes(self): - return self._nframes - - def getsampwidth(self): - return self._sampwidth - - def getframerate(self): - return self._framerate - - def getcomptype(self): - return self._comptype - - def getcompname(self): - return self._compname - -## def getversion(self): -## return self._version - - def getparams(self): - return _aifc_params(self.getnchannels(), self.getsampwidth(), - self.getframerate(), self.getnframes(), - self.getcomptype(), self.getcompname()) - - def getmarkers(self): - if len(self._markers) == 0: - return None - return self._markers - - def getmark(self, id): - for marker in self._markers: - if id == marker[0]: - return marker - raise Error('marker {0!r} does not exist'.format(id)) - - def setpos(self, pos): - if pos < 0 or pos > self._nframes: - raise Error('position not in range') - self._soundpos = pos - self._ssnd_seek_needed = 1 - - def readframes(self, nframes): - if self._ssnd_seek_needed: - self._ssnd_chunk.seek(0) - dummy = self._ssnd_chunk.read(8) - pos = self._soundpos * self._framesize - if pos: - self._ssnd_chunk.seek(pos + 8) - self._ssnd_seek_needed = 0 - if nframes == 0: - return b'' - data = self._ssnd_chunk.read(nframes * self._framesize) - if self._convert and data: - data = self._convert(data) - self._soundpos = self._soundpos + len(data) // (self._nchannels - * self._sampwidth) - return data - - # - # Internal methods. - # - - def _alaw2lin(self, data): - with warnings.catch_warnings(): - warnings.simplefilter('ignore', category=DeprecationWarning) - import audioop - return audioop.alaw2lin(data, 2) - - def _ulaw2lin(self, data): - with warnings.catch_warnings(): - warnings.simplefilter('ignore', category=DeprecationWarning) - import audioop - return audioop.ulaw2lin(data, 2) - - def _adpcm2lin(self, data): - with warnings.catch_warnings(): - warnings.simplefilter('ignore', category=DeprecationWarning) - import audioop - if not hasattr(self, '_adpcmstate'): - # first time - self._adpcmstate = None - data, self._adpcmstate = audioop.adpcm2lin(data, 2, self._adpcmstate) - return data - - def _sowt2lin(self, data): - with warnings.catch_warnings(): - warnings.simplefilter('ignore', category=DeprecationWarning) - import audioop - return audioop.byteswap(data, 2) - - def _read_comm_chunk(self, chunk): - self._nchannels = _read_short(chunk) - self._nframes = _read_long(chunk) - self._sampwidth = (_read_short(chunk) + 7) // 8 - self._framerate = int(_read_float(chunk)) - if self._sampwidth <= 0: - raise Error('bad sample width') - if self._nchannels <= 0: - raise Error('bad # of channels') - self._framesize = self._nchannels * self._sampwidth - if self._aifc: - #DEBUG: SGI's soundeditor produces a bad size :-( - kludge = 0 - if chunk.chunksize == 18: - kludge = 1 - warnings.warn('Warning: bad COMM chunk size') - chunk.chunksize = 23 - #DEBUG end - self._comptype = chunk.read(4) - #DEBUG start - if kludge: - length = ord(chunk.file.read(1)) - if length & 1 == 0: - length = length + 1 - chunk.chunksize = chunk.chunksize + length - chunk.file.seek(-1, 1) - #DEBUG end - self._compname = _read_string(chunk) - if self._comptype != b'NONE': - if self._comptype == b'G722': - self._convert = self._adpcm2lin - elif self._comptype in (b'ulaw', b'ULAW'): - self._convert = self._ulaw2lin - elif self._comptype in (b'alaw', b'ALAW'): - self._convert = self._alaw2lin - elif self._comptype in (b'sowt', b'SOWT'): - self._convert = self._sowt2lin - else: - raise Error('unsupported compression type') - self._sampwidth = 2 - else: - self._comptype = b'NONE' - self._compname = b'not compressed' - - def _readmark(self, chunk): - nmarkers = _read_short(chunk) - # Some files appear to contain invalid counts. - # Cope with this by testing for EOF. - try: - for i in range(nmarkers): - id = _read_short(chunk) - pos = _read_long(chunk) - name = _read_string(chunk) - if pos or name: - # some files appear to have - # dummy markers consisting of - # a position 0 and name '' - self._markers.append((id, pos, name)) - except EOFError: - w = ('Warning: MARK chunk contains only %s marker%s instead of %s' % - (len(self._markers), '' if len(self._markers) == 1 else 's', - nmarkers)) - warnings.warn(w) - -class Aifc_write: - # Variables used in this class: - # - # These variables are user settable through appropriate methods - # of this class: - # _file -- the open file with methods write(), close(), tell(), seek() - # set through the __init__() method - # _comptype -- the AIFF-C compression type ('NONE' in AIFF) - # set through the setcomptype() or setparams() method - # _compname -- the human-readable AIFF-C compression type - # set through the setcomptype() or setparams() method - # _nchannels -- the number of audio channels - # set through the setnchannels() or setparams() method - # _sampwidth -- the number of bytes per audio sample - # set through the setsampwidth() or setparams() method - # _framerate -- the sampling frequency - # set through the setframerate() or setparams() method - # _nframes -- the number of audio frames written to the header - # set through the setnframes() or setparams() method - # _aifc -- whether we're writing an AIFF-C file or an AIFF file - # set through the aifc() method, reset through the - # aiff() method - # - # These variables are used internally only: - # _version -- the AIFF-C version number - # _comp -- the compressor from builtin module cl - # _nframeswritten -- the number of audio frames actually written - # _datalength -- the size of the audio samples written to the header - # _datawritten -- the size of the audio samples actually written - - _file = None # Set here since __del__ checks it - - def __init__(self, f): - if isinstance(f, str): - file_object = builtins.open(f, 'wb') - try: - self.initfp(file_object) - except: - file_object.close() - raise - - # treat .aiff file extensions as non-compressed audio - if f.endswith('.aiff'): - self._aifc = 0 - else: - # assume it is an open file object already - self.initfp(f) - - def initfp(self, file): - self._file = file - self._version = _AIFC_version - self._comptype = b'NONE' - self._compname = b'not compressed' - self._convert = None - self._nchannels = 0 - self._sampwidth = 0 - self._framerate = 0 - self._nframes = 0 - self._nframeswritten = 0 - self._datawritten = 0 - self._datalength = 0 - self._markers = [] - self._marklength = 0 - self._aifc = 1 # AIFF-C is default - - def __del__(self): - self.close() - - def __enter__(self): - return self - - def __exit__(self, *args): - self.close() - - # - # User visible methods. - # - def aiff(self): - if self._nframeswritten: - raise Error('cannot change parameters after starting to write') - self._aifc = 0 - - def aifc(self): - if self._nframeswritten: - raise Error('cannot change parameters after starting to write') - self._aifc = 1 - - def setnchannels(self, nchannels): - if self._nframeswritten: - raise Error('cannot change parameters after starting to write') - if nchannels < 1: - raise Error('bad # of channels') - self._nchannels = nchannels - - def getnchannels(self): - if not self._nchannels: - raise Error('number of channels not set') - return self._nchannels - - def setsampwidth(self, sampwidth): - if self._nframeswritten: - raise Error('cannot change parameters after starting to write') - if sampwidth < 1 or sampwidth > 4: - raise Error('bad sample width') - self._sampwidth = sampwidth - - def getsampwidth(self): - if not self._sampwidth: - raise Error('sample width not set') - return self._sampwidth - - def setframerate(self, framerate): - if self._nframeswritten: - raise Error('cannot change parameters after starting to write') - if framerate <= 0: - raise Error('bad frame rate') - self._framerate = framerate - - def getframerate(self): - if not self._framerate: - raise Error('frame rate not set') - return self._framerate - - def setnframes(self, nframes): - if self._nframeswritten: - raise Error('cannot change parameters after starting to write') - self._nframes = nframes - - def getnframes(self): - return self._nframeswritten - - def setcomptype(self, comptype, compname): - if self._nframeswritten: - raise Error('cannot change parameters after starting to write') - if comptype not in (b'NONE', b'ulaw', b'ULAW', - b'alaw', b'ALAW', b'G722', b'sowt', b'SOWT'): - raise Error('unsupported compression type') - self._comptype = comptype - self._compname = compname - - def getcomptype(self): - return self._comptype - - def getcompname(self): - return self._compname - -## def setversion(self, version): -## if self._nframeswritten: -## raise Error, 'cannot change parameters after starting to write' -## self._version = version - - def setparams(self, params): - nchannels, sampwidth, framerate, nframes, comptype, compname = params - if self._nframeswritten: - raise Error('cannot change parameters after starting to write') - if comptype not in (b'NONE', b'ulaw', b'ULAW', - b'alaw', b'ALAW', b'G722', b'sowt', b'SOWT'): - raise Error('unsupported compression type') - self.setnchannels(nchannels) - self.setsampwidth(sampwidth) - self.setframerate(framerate) - self.setnframes(nframes) - self.setcomptype(comptype, compname) - - def getparams(self): - if not self._nchannels or not self._sampwidth or not self._framerate: - raise Error('not all parameters set') - return _aifc_params(self._nchannels, self._sampwidth, self._framerate, - self._nframes, self._comptype, self._compname) - - def setmark(self, id, pos, name): - if id <= 0: - raise Error('marker ID must be > 0') - if pos < 0: - raise Error('marker position must be >= 0') - if not isinstance(name, bytes): - raise Error('marker name must be bytes') - for i in range(len(self._markers)): - if id == self._markers[i][0]: - self._markers[i] = id, pos, name - return - self._markers.append((id, pos, name)) - - def getmark(self, id): - for marker in self._markers: - if id == marker[0]: - return marker - raise Error('marker {0!r} does not exist'.format(id)) - - def getmarkers(self): - if len(self._markers) == 0: - return None - return self._markers - - def tell(self): - return self._nframeswritten - - def writeframesraw(self, data): - if not isinstance(data, (bytes, bytearray)): - data = memoryview(data).cast('B') - self._ensure_header_written(len(data)) - nframes = len(data) // (self._sampwidth * self._nchannels) - if self._convert: - data = self._convert(data) - self._file.write(data) - self._nframeswritten = self._nframeswritten + nframes - self._datawritten = self._datawritten + len(data) - - def writeframes(self, data): - self.writeframesraw(data) - if self._nframeswritten != self._nframes or \ - self._datalength != self._datawritten: - self._patchheader() - - def close(self): - if self._file is None: - return - try: - self._ensure_header_written(0) - if self._datawritten & 1: - # quick pad to even size - self._file.write(b'\x00') - self._datawritten = self._datawritten + 1 - self._writemarkers() - if self._nframeswritten != self._nframes or \ - self._datalength != self._datawritten or \ - self._marklength: - self._patchheader() - finally: - # Prevent ref cycles - self._convert = None - f = self._file - self._file = None - f.close() - - # - # Internal methods. - # - - def _lin2alaw(self, data): - with warnings.catch_warnings(): - warnings.simplefilter('ignore', category=DeprecationWarning) - import audioop - return audioop.lin2alaw(data, 2) - - def _lin2ulaw(self, data): - with warnings.catch_warnings(): - warnings.simplefilter('ignore', category=DeprecationWarning) - import audioop - return audioop.lin2ulaw(data, 2) - - def _lin2adpcm(self, data): - with warnings.catch_warnings(): - warnings.simplefilter('ignore', category=DeprecationWarning) - import audioop - if not hasattr(self, '_adpcmstate'): - self._adpcmstate = None - data, self._adpcmstate = audioop.lin2adpcm(data, 2, self._adpcmstate) - return data - - def _lin2sowt(self, data): - with warnings.catch_warnings(): - warnings.simplefilter('ignore', category=DeprecationWarning) - import audioop - return audioop.byteswap(data, 2) - - def _ensure_header_written(self, datasize): - if not self._nframeswritten: - if self._comptype in (b'ULAW', b'ulaw', - b'ALAW', b'alaw', b'G722', - b'sowt', b'SOWT'): - if not self._sampwidth: - self._sampwidth = 2 - if self._sampwidth != 2: - raise Error('sample width must be 2 when compressing ' - 'with ulaw/ULAW, alaw/ALAW, sowt/SOWT ' - 'or G7.22 (ADPCM)') - if not self._nchannels: - raise Error('# channels not specified') - if not self._sampwidth: - raise Error('sample width not specified') - if not self._framerate: - raise Error('sampling rate not specified') - self._write_header(datasize) - - def _init_compression(self): - if self._comptype == b'G722': - self._convert = self._lin2adpcm - elif self._comptype in (b'ulaw', b'ULAW'): - self._convert = self._lin2ulaw - elif self._comptype in (b'alaw', b'ALAW'): - self._convert = self._lin2alaw - elif self._comptype in (b'sowt', b'SOWT'): - self._convert = self._lin2sowt - - def _write_header(self, initlength): - if self._aifc and self._comptype != b'NONE': - self._init_compression() - self._file.write(b'FORM') - if not self._nframes: - self._nframes = initlength // (self._nchannels * self._sampwidth) - self._datalength = self._nframes * self._nchannels * self._sampwidth - if self._datalength & 1: - self._datalength = self._datalength + 1 - if self._aifc: - if self._comptype in (b'ulaw', b'ULAW', b'alaw', b'ALAW'): - self._datalength = self._datalength // 2 - if self._datalength & 1: - self._datalength = self._datalength + 1 - elif self._comptype == b'G722': - self._datalength = (self._datalength + 3) // 4 - if self._datalength & 1: - self._datalength = self._datalength + 1 - try: - self._form_length_pos = self._file.tell() - except (AttributeError, OSError): - self._form_length_pos = None - commlength = self._write_form_length(self._datalength) - if self._aifc: - self._file.write(b'AIFC') - self._file.write(b'FVER') - _write_ulong(self._file, 4) - _write_ulong(self._file, self._version) - else: - self._file.write(b'AIFF') - self._file.write(b'COMM') - _write_ulong(self._file, commlength) - _write_short(self._file, self._nchannels) - if self._form_length_pos is not None: - self._nframes_pos = self._file.tell() - _write_ulong(self._file, self._nframes) - if self._comptype in (b'ULAW', b'ulaw', b'ALAW', b'alaw', b'G722'): - _write_short(self._file, 8) - else: - _write_short(self._file, self._sampwidth * 8) - _write_float(self._file, self._framerate) - if self._aifc: - self._file.write(self._comptype) - _write_string(self._file, self._compname) - self._file.write(b'SSND') - if self._form_length_pos is not None: - self._ssnd_length_pos = self._file.tell() - _write_ulong(self._file, self._datalength + 8) - _write_ulong(self._file, 0) - _write_ulong(self._file, 0) - - def _write_form_length(self, datalength): - if self._aifc: - commlength = 18 + 5 + len(self._compname) - if commlength & 1: - commlength = commlength + 1 - verslength = 12 - else: - commlength = 18 - verslength = 0 - _write_ulong(self._file, 4 + verslength + self._marklength + \ - 8 + commlength + 16 + datalength) - return commlength - - def _patchheader(self): - curpos = self._file.tell() - if self._datawritten & 1: - datalength = self._datawritten + 1 - self._file.write(b'\x00') - else: - datalength = self._datawritten - if datalength == self._datalength and \ - self._nframes == self._nframeswritten and \ - self._marklength == 0: - self._file.seek(curpos, 0) - return - self._file.seek(self._form_length_pos, 0) - dummy = self._write_form_length(datalength) - self._file.seek(self._nframes_pos, 0) - _write_ulong(self._file, self._nframeswritten) - self._file.seek(self._ssnd_length_pos, 0) - _write_ulong(self._file, datalength + 8) - self._file.seek(curpos, 0) - self._nframes = self._nframeswritten - self._datalength = datalength - - def _writemarkers(self): - if len(self._markers) == 0: - return - self._file.write(b'MARK') - length = 2 - for marker in self._markers: - id, pos, name = marker - length = length + len(name) + 1 + 6 - if len(name) & 1 == 0: - length = length + 1 - _write_ulong(self._file, length) - self._marklength = length + 8 - _write_short(self._file, len(self._markers)) - for marker in self._markers: - id, pos, name = marker - _write_short(self._file, id) - _write_ulong(self._file, pos) - _write_string(self._file, name) - -def open(f, mode=None): - if mode is None: - if hasattr(f, 'mode'): - mode = f.mode - else: - mode = 'rb' - if mode in ('r', 'rb'): - return Aifc_read(f) - elif mode in ('w', 'wb'): - return Aifc_write(f) - else: - raise Error("mode must be 'r', 'rb', 'w', or 'wb'") - - -if __name__ == '__main__': - import sys - if not sys.argv[1:]: - sys.argv.append('/usr/demos/data/audio/bach.aiff') - fn = sys.argv[1] - with open(fn, 'r') as f: - print("Reading", fn) - print("nchannels =", f.getnchannels()) - print("nframes =", f.getnframes()) - print("sampwidth =", f.getsampwidth()) - print("framerate =", f.getframerate()) - print("comptype =", f.getcomptype()) - print("compname =", f.getcompname()) - if sys.argv[2:]: - gn = sys.argv[2] - print("Writing", gn) - with open(gn, 'w') as g: - g.setparams(f.getparams()) - while 1: - data = f.readframes(1024) - if not data: - break - g.writeframes(data) - print("Done.") diff --git a/Lib/asynchat.py b/Lib/asynchat.py deleted file mode 100644 index fc1146adbb..0000000000 --- a/Lib/asynchat.py +++ /dev/null @@ -1,307 +0,0 @@ -# -*- Mode: Python; tab-width: 4 -*- -# Id: asynchat.py,v 2.26 2000/09/07 22:29:26 rushing Exp -# Author: Sam Rushing - -# ====================================================================== -# Copyright 1996 by Sam Rushing -# -# All Rights Reserved -# -# Permission to use, copy, modify, and distribute this software and -# its documentation for any purpose and without fee is hereby -# granted, provided that the above copyright notice appear in all -# copies and that both that copyright notice and this permission -# notice appear in supporting documentation, and that the name of Sam -# Rushing not be used in advertising or publicity pertaining to -# distribution of the software without specific, written prior -# permission. -# -# SAM RUSHING DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -# INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN -# NO EVENT SHALL SAM RUSHING BE LIABLE FOR ANY SPECIAL, INDIRECT OR -# CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS -# OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, -# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN -# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. -# ====================================================================== - -r"""A class supporting chat-style (command/response) protocols. - -This class adds support for 'chat' style protocols - where one side -sends a 'command', and the other sends a response (examples would be -the common internet protocols - smtp, nntp, ftp, etc..). - -The handle_read() method looks at the input stream for the current -'terminator' (usually '\r\n' for single-line responses, '\r\n.\r\n' -for multi-line output), calling self.found_terminator() on its -receipt. - -for example: -Say you build an async nntp client using this class. At the start -of the connection, you'll have self.terminator set to '\r\n', in -order to process the single-line greeting. Just before issuing a -'LIST' command you'll set it to '\r\n.\r\n'. The output of the LIST -command will be accumulated (using your own 'collect_incoming_data' -method) up to the terminator, and then control will be returned to -you - by calling your self.found_terminator() method. -""" -import asyncore -from collections import deque - - -class async_chat(asyncore.dispatcher): - """This is an abstract class. You must derive from this class, and add - the two methods collect_incoming_data() and found_terminator()""" - - # these are overridable defaults - - ac_in_buffer_size = 65536 - ac_out_buffer_size = 65536 - - # we don't want to enable the use of encoding by default, because that is a - # sign of an application bug that we don't want to pass silently - - use_encoding = 0 - encoding = 'latin-1' - - def __init__(self, sock=None, map=None): - # for string terminator matching - self.ac_in_buffer = b'' - - # we use a list here rather than io.BytesIO for a few reasons... - # del lst[:] is faster than bio.truncate(0) - # lst = [] is faster than bio.truncate(0) - self.incoming = [] - - # we toss the use of the "simple producer" and replace it with - # a pure deque, which the original fifo was a wrapping of - self.producer_fifo = deque() - asyncore.dispatcher.__init__(self, sock, map) - - def collect_incoming_data(self, data): - raise NotImplementedError("must be implemented in subclass") - - def _collect_incoming_data(self, data): - self.incoming.append(data) - - def _get_data(self): - d = b''.join(self.incoming) - del self.incoming[:] - return d - - def found_terminator(self): - raise NotImplementedError("must be implemented in subclass") - - def set_terminator(self, term): - """Set the input delimiter. - - Can be a fixed string of any length, an integer, or None. - """ - if isinstance(term, str) and self.use_encoding: - term = bytes(term, self.encoding) - elif isinstance(term, int) and term < 0: - raise ValueError('the number of received bytes must be positive') - self.terminator = term - - def get_terminator(self): - return self.terminator - - # grab some more data from the socket, - # throw it to the collector method, - # check for the terminator, - # if found, transition to the next state. - - def handle_read(self): - - try: - data = self.recv(self.ac_in_buffer_size) - except BlockingIOError: - return - except OSError as why: - self.handle_error() - return - - if isinstance(data, str) and self.use_encoding: - data = bytes(str, self.encoding) - self.ac_in_buffer = self.ac_in_buffer + data - - # Continue to search for self.terminator in self.ac_in_buffer, - # while calling self.collect_incoming_data. The while loop - # is necessary because we might read several data+terminator - # combos with a single recv(4096). - - while self.ac_in_buffer: - lb = len(self.ac_in_buffer) - terminator = self.get_terminator() - if not terminator: - # no terminator, collect it all - self.collect_incoming_data(self.ac_in_buffer) - self.ac_in_buffer = b'' - elif isinstance(terminator, int): - # numeric terminator - n = terminator - if lb < n: - self.collect_incoming_data(self.ac_in_buffer) - self.ac_in_buffer = b'' - self.terminator = self.terminator - lb - else: - self.collect_incoming_data(self.ac_in_buffer[:n]) - self.ac_in_buffer = self.ac_in_buffer[n:] - self.terminator = 0 - self.found_terminator() - else: - # 3 cases: - # 1) end of buffer matches terminator exactly: - # collect data, transition - # 2) end of buffer matches some prefix: - # collect data to the prefix - # 3) end of buffer does not match any prefix: - # collect data - terminator_len = len(terminator) - index = self.ac_in_buffer.find(terminator) - if index != -1: - # we found the terminator - if index > 0: - # don't bother reporting the empty string - # (source of subtle bugs) - self.collect_incoming_data(self.ac_in_buffer[:index]) - self.ac_in_buffer = self.ac_in_buffer[index+terminator_len:] - # This does the Right Thing if the terminator - # is changed here. - self.found_terminator() - else: - # check for a prefix of the terminator - index = find_prefix_at_end(self.ac_in_buffer, terminator) - if index: - if index != lb: - # we found a prefix, collect up to the prefix - self.collect_incoming_data(self.ac_in_buffer[:-index]) - self.ac_in_buffer = self.ac_in_buffer[-index:] - break - else: - # no prefix, collect it all - self.collect_incoming_data(self.ac_in_buffer) - self.ac_in_buffer = b'' - - def handle_write(self): - self.initiate_send() - - def handle_close(self): - self.close() - - def push(self, data): - if not isinstance(data, (bytes, bytearray, memoryview)): - raise TypeError('data argument must be byte-ish (%r)', - type(data)) - sabs = self.ac_out_buffer_size - if len(data) > sabs: - for i in range(0, len(data), sabs): - self.producer_fifo.append(data[i:i+sabs]) - else: - self.producer_fifo.append(data) - self.initiate_send() - - def push_with_producer(self, producer): - self.producer_fifo.append(producer) - self.initiate_send() - - def readable(self): - "predicate for inclusion in the readable for select()" - # cannot use the old predicate, it violates the claim of the - # set_terminator method. - - # return (len(self.ac_in_buffer) <= self.ac_in_buffer_size) - return 1 - - def writable(self): - "predicate for inclusion in the writable for select()" - return self.producer_fifo or (not self.connected) - - def close_when_done(self): - "automatically close this channel once the outgoing queue is empty" - self.producer_fifo.append(None) - - def initiate_send(self): - while self.producer_fifo and self.connected: - first = self.producer_fifo[0] - # handle empty string/buffer or None entry - if not first: - del self.producer_fifo[0] - if first is None: - self.handle_close() - return - - # handle classic producer behavior - obs = self.ac_out_buffer_size - try: - data = first[:obs] - except TypeError: - data = first.more() - if data: - self.producer_fifo.appendleft(data) - else: - del self.producer_fifo[0] - continue - - if isinstance(data, str) and self.use_encoding: - data = bytes(data, self.encoding) - - # send the data - try: - num_sent = self.send(data) - except OSError: - self.handle_error() - return - - if num_sent: - if num_sent < len(data) or obs < len(first): - self.producer_fifo[0] = first[num_sent:] - else: - del self.producer_fifo[0] - # we tried to send some actual data - return - - def discard_buffers(self): - # Emergencies only! - self.ac_in_buffer = b'' - del self.incoming[:] - self.producer_fifo.clear() - - -class simple_producer: - - def __init__(self, data, buffer_size=512): - self.data = data - self.buffer_size = buffer_size - - def more(self): - if len(self.data) > self.buffer_size: - result = self.data[:self.buffer_size] - self.data = self.data[self.buffer_size:] - return result - else: - result = self.data - self.data = b'' - return result - - -# Given 'haystack', see if any prefix of 'needle' is at its end. This -# assumes an exact match has already been checked. Return the number of -# characters matched. -# for example: -# f_p_a_e("qwerty\r", "\r\n") => 1 -# f_p_a_e("qwertydkjf", "\r\n") => 0 -# f_p_a_e("qwerty\r\n", "\r\n") => - -# this could maybe be made faster with a computed regex? -# [answer: no; circa Python-2.0, Jan 2001] -# new python: 28961/s -# old python: 18307/s -# re: 12820/s -# regex: 14035/s - -def find_prefix_at_end(haystack, needle): - l = len(needle) - 1 - while l and not haystack.endswith(needle[:l]): - l -= 1 - return l diff --git a/Lib/asyncore.py b/Lib/asyncore.py deleted file mode 100644 index 0e92be3ad1..0000000000 --- a/Lib/asyncore.py +++ /dev/null @@ -1,642 +0,0 @@ -# -*- Mode: Python -*- -# Id: asyncore.py,v 2.51 2000/09/07 22:29:26 rushing Exp -# Author: Sam Rushing - -# ====================================================================== -# Copyright 1996 by Sam Rushing -# -# All Rights Reserved -# -# Permission to use, copy, modify, and distribute this software and -# its documentation for any purpose and without fee is hereby -# granted, provided that the above copyright notice appear in all -# copies and that both that copyright notice and this permission -# notice appear in supporting documentation, and that the name of Sam -# Rushing not be used in advertising or publicity pertaining to -# distribution of the software without specific, written prior -# permission. -# -# SAM RUSHING DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, -# INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN -# NO EVENT SHALL SAM RUSHING BE LIABLE FOR ANY SPECIAL, INDIRECT OR -# CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS -# OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, -# NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN -# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. -# ====================================================================== - -"""Basic infrastructure for asynchronous socket service clients and servers. - -There are only two ways to have a program on a single processor do "more -than one thing at a time". Multi-threaded programming is the simplest and -most popular way to do it, but there is another very different technique, -that lets you have nearly all the advantages of multi-threading, without -actually using multiple threads. it's really only practical if your program -is largely I/O bound. If your program is CPU bound, then pre-emptive -scheduled threads are probably what you really need. Network servers are -rarely CPU-bound, however. - -If your operating system supports the select() system call in its I/O -library (and nearly all do), then you can use it to juggle multiple -communication channels at once; doing other work while your I/O is taking -place in the "background." Although this strategy can seem strange and -complex, especially at first, it is in many ways easier to understand and -control than multi-threaded programming. The module documented here solves -many of the difficult problems for you, making the task of building -sophisticated high-performance network servers and clients a snap. -""" - -import select -import socket -import sys -import time -import warnings - -import os -from errno import EALREADY, EINPROGRESS, EWOULDBLOCK, ECONNRESET, EINVAL, \ - ENOTCONN, ESHUTDOWN, EISCONN, EBADF, ECONNABORTED, EPIPE, EAGAIN, \ - errorcode - -_DISCONNECTED = frozenset({ECONNRESET, ENOTCONN, ESHUTDOWN, ECONNABORTED, EPIPE, - EBADF}) - -try: - socket_map -except NameError: - socket_map = {} - -def _strerror(err): - try: - return os.strerror(err) - except (ValueError, OverflowError, NameError): - if err in errorcode: - return errorcode[err] - return "Unknown error %s" %err - -class ExitNow(Exception): - pass - -_reraised_exceptions = (ExitNow, KeyboardInterrupt, SystemExit) - -def read(obj): - try: - obj.handle_read_event() - except _reraised_exceptions: - raise - except: - obj.handle_error() - -def write(obj): - try: - obj.handle_write_event() - except _reraised_exceptions: - raise - except: - obj.handle_error() - -def _exception(obj): - try: - obj.handle_expt_event() - except _reraised_exceptions: - raise - except: - obj.handle_error() - -def readwrite(obj, flags): - try: - if flags & select.POLLIN: - obj.handle_read_event() - if flags & select.POLLOUT: - obj.handle_write_event() - if flags & select.POLLPRI: - obj.handle_expt_event() - if flags & (select.POLLHUP | select.POLLERR | select.POLLNVAL): - obj.handle_close() - except OSError as e: - if e.args[0] not in _DISCONNECTED: - obj.handle_error() - else: - obj.handle_close() - except _reraised_exceptions: - raise - except: - obj.handle_error() - -def poll(timeout=0.0, map=None): - if map is None: - map = socket_map - if map: - r = []; w = []; e = [] - for fd, obj in list(map.items()): - is_r = obj.readable() - is_w = obj.writable() - if is_r: - r.append(fd) - # accepting sockets should not be writable - if is_w and not obj.accepting: - w.append(fd) - if is_r or is_w: - e.append(fd) - if [] == r == w == e: - time.sleep(timeout) - return - - r, w, e = select.select(r, w, e, timeout) - - for fd in r: - obj = map.get(fd) - if obj is None: - continue - read(obj) - - for fd in w: - obj = map.get(fd) - if obj is None: - continue - write(obj) - - for fd in e: - obj = map.get(fd) - if obj is None: - continue - _exception(obj) - -def poll2(timeout=0.0, map=None): - # Use the poll() support added to the select module in Python 2.0 - if map is None: - map = socket_map - if timeout is not None: - # timeout is in milliseconds - timeout = int(timeout*1000) - pollster = select.poll() - if map: - for fd, obj in list(map.items()): - flags = 0 - if obj.readable(): - flags |= select.POLLIN | select.POLLPRI - # accepting sockets should not be writable - if obj.writable() and not obj.accepting: - flags |= select.POLLOUT - if flags: - pollster.register(fd, flags) - - r = pollster.poll(timeout) - for fd, flags in r: - obj = map.get(fd) - if obj is None: - continue - readwrite(obj, flags) - -poll3 = poll2 # Alias for backward compatibility - -def loop(timeout=30.0, use_poll=False, map=None, count=None): - if map is None: - map = socket_map - - if use_poll and hasattr(select, 'poll'): - poll_fun = poll2 - else: - poll_fun = poll - - if count is None: - while map: - poll_fun(timeout, map) - - else: - while map and count > 0: - poll_fun(timeout, map) - count = count - 1 - -class dispatcher: - - debug = False - connected = False - accepting = False - connecting = False - closing = False - addr = None - ignore_log_types = frozenset({'warning'}) - - def __init__(self, sock=None, map=None): - if map is None: - self._map = socket_map - else: - self._map = map - - self._fileno = None - - if sock: - # Set to nonblocking just to make sure for cases where we - # get a socket from a blocking source. - sock.setblocking(0) - self.set_socket(sock, map) - self.connected = True - # The constructor no longer requires that the socket - # passed be connected. - try: - self.addr = sock.getpeername() - except OSError as err: - if err.args[0] in (ENOTCONN, EINVAL): - # To handle the case where we got an unconnected - # socket. - self.connected = False - else: - # The socket is broken in some unknown way, alert - # the user and remove it from the map (to prevent - # polling of broken sockets). - self.del_channel(map) - raise - else: - self.socket = None - - def __repr__(self): - status = [self.__class__.__module__+"."+self.__class__.__qualname__] - if self.accepting and self.addr: - status.append('listening') - elif self.connected: - status.append('connected') - if self.addr is not None: - try: - status.append('%s:%d' % self.addr) - except TypeError: - status.append(repr(self.addr)) - return '<%s at %#x>' % (' '.join(status), id(self)) - - def add_channel(self, map=None): - #self.log_info('adding channel %s' % self) - if map is None: - map = self._map - map[self._fileno] = self - - def del_channel(self, map=None): - fd = self._fileno - if map is None: - map = self._map - if fd in map: - #self.log_info('closing channel %d:%s' % (fd, self)) - del map[fd] - self._fileno = None - - def create_socket(self, family=socket.AF_INET, type=socket.SOCK_STREAM): - self.family_and_type = family, type - sock = socket.socket(family, type) - sock.setblocking(0) - self.set_socket(sock) - - def set_socket(self, sock, map=None): - self.socket = sock - self._fileno = sock.fileno() - self.add_channel(map) - - def set_reuse_addr(self): - # try to re-use a server port if possible - try: - self.socket.setsockopt( - socket.SOL_SOCKET, socket.SO_REUSEADDR, - self.socket.getsockopt(socket.SOL_SOCKET, - socket.SO_REUSEADDR) | 1 - ) - except OSError: - pass - - # ================================================== - # predicates for select() - # these are used as filters for the lists of sockets - # to pass to select(). - # ================================================== - - def readable(self): - return True - - def writable(self): - return True - - # ================================================== - # socket object methods. - # ================================================== - - def listen(self, num): - self.accepting = True - if os.name == 'nt' and num > 5: - num = 5 - return self.socket.listen(num) - - def bind(self, addr): - self.addr = addr - return self.socket.bind(addr) - - def connect(self, address): - self.connected = False - self.connecting = True - err = self.socket.connect_ex(address) - if err in (EINPROGRESS, EALREADY, EWOULDBLOCK) \ - or err == EINVAL and os.name == 'nt': - self.addr = address - return - if err in (0, EISCONN): - self.addr = address - self.handle_connect_event() - else: - raise OSError(err, errorcode[err]) - - def accept(self): - # XXX can return either an address pair or None - try: - conn, addr = self.socket.accept() - except TypeError: - return None - except OSError as why: - if why.args[0] in (EWOULDBLOCK, ECONNABORTED, EAGAIN): - return None - else: - raise - else: - return conn, addr - - def send(self, data): - try: - result = self.socket.send(data) - return result - except OSError as why: - if why.args[0] == EWOULDBLOCK: - return 0 - elif why.args[0] in _DISCONNECTED: - self.handle_close() - return 0 - else: - raise - - def recv(self, buffer_size): - try: - data = self.socket.recv(buffer_size) - if not data: - # a closed connection is indicated by signaling - # a read condition, and having recv() return 0. - self.handle_close() - return b'' - else: - return data - except OSError as why: - # winsock sometimes raises ENOTCONN - if why.args[0] in _DISCONNECTED: - self.handle_close() - return b'' - else: - raise - - def close(self): - self.connected = False - self.accepting = False - self.connecting = False - self.del_channel() - if self.socket is not None: - try: - self.socket.close() - except OSError as why: - if why.args[0] not in (ENOTCONN, EBADF): - raise - - # log and log_info may be overridden to provide more sophisticated - # logging and warning methods. In general, log is for 'hit' logging - # and 'log_info' is for informational, warning and error logging. - - def log(self, message): - sys.stderr.write('log: %s\n' % str(message)) - - def log_info(self, message, type='info'): - if type not in self.ignore_log_types: - print('%s: %s' % (type, message)) - - def handle_read_event(self): - if self.accepting: - # accepting sockets are never connected, they "spawn" new - # sockets that are connected - self.handle_accept() - elif not self.connected: - if self.connecting: - self.handle_connect_event() - self.handle_read() - else: - self.handle_read() - - def handle_connect_event(self): - err = self.socket.getsockopt(socket.SOL_SOCKET, socket.SO_ERROR) - if err != 0: - raise OSError(err, _strerror(err)) - self.handle_connect() - self.connected = True - self.connecting = False - - def handle_write_event(self): - if self.accepting: - # Accepting sockets shouldn't get a write event. - # We will pretend it didn't happen. - return - - if not self.connected: - if self.connecting: - self.handle_connect_event() - self.handle_write() - - def handle_expt_event(self): - # handle_expt_event() is called if there might be an error on the - # socket, or if there is OOB data - # check for the error condition first - err = self.socket.getsockopt(socket.SOL_SOCKET, socket.SO_ERROR) - if err != 0: - # we can get here when select.select() says that there is an - # exceptional condition on the socket - # since there is an error, we'll go ahead and close the socket - # like we would in a subclassed handle_read() that received no - # data - self.handle_close() - else: - self.handle_expt() - - def handle_error(self): - nil, t, v, tbinfo = compact_traceback() - - # sometimes a user repr method will crash. - try: - self_repr = repr(self) - except: - self_repr = '<__repr__(self) failed for object at %0x>' % id(self) - - self.log_info( - 'uncaptured python exception, closing channel %s (%s:%s %s)' % ( - self_repr, - t, - v, - tbinfo - ), - 'error' - ) - self.handle_close() - - def handle_expt(self): - self.log_info('unhandled incoming priority event', 'warning') - - def handle_read(self): - self.log_info('unhandled read event', 'warning') - - def handle_write(self): - self.log_info('unhandled write event', 'warning') - - def handle_connect(self): - self.log_info('unhandled connect event', 'warning') - - def handle_accept(self): - pair = self.accept() - if pair is not None: - self.handle_accepted(*pair) - - def handle_accepted(self, sock, addr): - sock.close() - self.log_info('unhandled accepted event', 'warning') - - def handle_close(self): - self.log_info('unhandled close event', 'warning') - self.close() - -# --------------------------------------------------------------------------- -# adds simple buffered output capability, useful for simple clients. -# [for more sophisticated usage use asynchat.async_chat] -# --------------------------------------------------------------------------- - -class dispatcher_with_send(dispatcher): - - def __init__(self, sock=None, map=None): - dispatcher.__init__(self, sock, map) - self.out_buffer = b'' - - def initiate_send(self): - num_sent = 0 - num_sent = dispatcher.send(self, self.out_buffer[:65536]) - self.out_buffer = self.out_buffer[num_sent:] - - def handle_write(self): - self.initiate_send() - - def writable(self): - return (not self.connected) or len(self.out_buffer) - - def send(self, data): - if self.debug: - self.log_info('sending %s' % repr(data)) - self.out_buffer = self.out_buffer + data - self.initiate_send() - -# --------------------------------------------------------------------------- -# used for debugging. -# --------------------------------------------------------------------------- - -def compact_traceback(): - t, v, tb = sys.exc_info() - tbinfo = [] - if not tb: # Must have a traceback - raise AssertionError("traceback does not exist") - while tb: - tbinfo.append(( - tb.tb_frame.f_code.co_filename, - tb.tb_frame.f_code.co_name, - str(tb.tb_lineno) - )) - tb = tb.tb_next - - # just to be safe - del tb - - file, function, line = tbinfo[-1] - info = ' '.join(['[%s|%s|%s]' % x for x in tbinfo]) - return (file, function, line), t, v, info - -def close_all(map=None, ignore_all=False): - if map is None: - map = socket_map - for x in list(map.values()): - try: - x.close() - except OSError as x: - if x.args[0] == EBADF: - pass - elif not ignore_all: - raise - except _reraised_exceptions: - raise - except: - if not ignore_all: - raise - map.clear() - -# Asynchronous File I/O: -# -# After a little research (reading man pages on various unixen, and -# digging through the linux kernel), I've determined that select() -# isn't meant for doing asynchronous file i/o. -# Heartening, though - reading linux/mm/filemap.c shows that linux -# supports asynchronous read-ahead. So _MOST_ of the time, the data -# will be sitting in memory for us already when we go to read it. -# -# What other OS's (besides NT) support async file i/o? [VMS?] -# -# Regardless, this is useful for pipes, and stdin/stdout... - -if os.name == 'posix': - class file_wrapper: - # Here we override just enough to make a file - # look like a socket for the purposes of asyncore. - # The passed fd is automatically os.dup()'d - - def __init__(self, fd): - self.fd = os.dup(fd) - - def __del__(self): - if self.fd >= 0: - warnings.warn("unclosed file %r" % self, ResourceWarning, - source=self) - self.close() - - def recv(self, *args): - return os.read(self.fd, *args) - - def send(self, *args): - return os.write(self.fd, *args) - - def getsockopt(self, level, optname, buflen=None): - if (level == socket.SOL_SOCKET and - optname == socket.SO_ERROR and - not buflen): - return 0 - raise NotImplementedError("Only asyncore specific behaviour " - "implemented.") - - read = recv - write = send - - def close(self): - if self.fd < 0: - return - fd = self.fd - self.fd = -1 - os.close(fd) - - def fileno(self): - return self.fd - - class file_dispatcher(dispatcher): - - def __init__(self, fd, map=None): - dispatcher.__init__(self, None, map) - self.connected = True - try: - fd = fd.fileno() - except AttributeError: - pass - self.set_file(fd) - # set it to non-blocking mode - os.set_blocking(fd, False) - - def set_file(self, fd): - self.socket = file_wrapper(fd) - self._fileno = self.socket.fileno() - self.add_channel() diff --git a/Lib/calendar.py b/Lib/calendar.py index baab52a157..8c1c646da4 100644 --- a/Lib/calendar.py +++ b/Lib/calendar.py @@ -10,7 +10,6 @@ from enum import IntEnum, global_enum import locale as _locale from itertools import repeat -import warnings __all__ = ["IllegalMonthError", "IllegalWeekdayError", "setfirstweekday", "firstweekday", "isleap", "leapdays", "weekday", "monthrange", @@ -28,7 +27,9 @@ error = ValueError # Exceptions raised for bad input -class IllegalMonthError(ValueError): +# This is trick for backward compatibility. Since 3.13, we will raise IllegalMonthError instead of +# IndexError for bad month number(out of 1-12). But we can't remove IndexError for backward compatibility. +class IllegalMonthError(ValueError, IndexError): def __init__(self, month): self.month = month def __str__(self): @@ -44,6 +45,7 @@ def __str__(self): def __getattr__(name): if name in ('January', 'February'): + import warnings warnings.warn(f"The '{name}' attribute is deprecated, use '{name.upper()}' instead", DeprecationWarning, stacklevel=2) if name == 'January': @@ -158,11 +160,14 @@ def weekday(year, month, day): return Day(datetime.date(year, month, day).weekday()) -def monthrange(year, month): - """Return weekday (0-6 ~ Mon-Sun) and number of days (28-31) for - year, month.""" +def _validate_month(month): if not 1 <= month <= 12: raise IllegalMonthError(month) + +def monthrange(year, month): + """Return weekday of first day of month (0-6 ~ Mon-Sun) + and number of days (28-31) for year, month.""" + _validate_month(month) day1 = weekday(year, month, 1) ndays = mdays[month] + (month == FEBRUARY and isleap(year)) return day1, ndays @@ -370,6 +375,8 @@ def formatmonthname(self, theyear, themonth, width, withyear=True): """ Return a formatted month name. """ + _validate_month(themonth) + s = month_name[themonth] if withyear: s = "%s %r" % (s, theyear) @@ -500,6 +507,7 @@ def formatmonthname(self, theyear, themonth, withyear=True): """ Return a month name as a table row. """ + _validate_month(themonth) if withyear: s = '%s %s' % (month_name[themonth], theyear) else: @@ -585,8 +593,6 @@ def __enter__(self): _locale.setlocale(_locale.LC_TIME, self.locale) def __exit__(self, *args): - if self.oldlocale is None: - return _locale.setlocale(_locale.LC_TIME, self.oldlocale) @@ -690,7 +696,7 @@ def timegm(tuple): return seconds -def main(args): +def main(args=None): import argparse parser = argparse.ArgumentParser() textgroup = parser.add_argument_group('text only arguments') @@ -736,10 +742,15 @@ def main(args): choices=("text", "html"), help="output type (text or html)" ) + parser.add_argument( + "-f", "--first-weekday", + type=int, default=0, + help="weekday (0 is Monday, 6 is Sunday) to start each week (default 0)" + ) parser.add_argument( "year", nargs='?', type=int, - help="year number (1-9999)" + help="year number" ) parser.add_argument( "month", @@ -747,7 +758,7 @@ def main(args): help="month number (1-12, text only)" ) - options = parser.parse_args(args[1:]) + options = parser.parse_args(args) if options.locale and not options.encoding: parser.error("if --locale is specified --encoding is required") @@ -756,10 +767,14 @@ def main(args): locale = options.locale, options.encoding if options.type == "html": + if options.month: + parser.error("incorrect number of arguments") + sys.exit(1) if options.locale: cal = LocaleHTMLCalendar(locale=locale) else: cal = HTMLCalendar() + cal.setfirstweekday(options.first_weekday) encoding = options.encoding if encoding is None: encoding = sys.getdefaultencoding() @@ -767,20 +782,20 @@ def main(args): write = sys.stdout.buffer.write if options.year is None: write(cal.formatyearpage(datetime.date.today().year, **optdict)) - elif options.month is None: - write(cal.formatyearpage(options.year, **optdict)) else: - parser.error("incorrect number of arguments") - sys.exit(1) + write(cal.formatyearpage(options.year, **optdict)) else: if options.locale: cal = LocaleTextCalendar(locale=locale) else: cal = TextCalendar() + cal.setfirstweekday(options.first_weekday) optdict = dict(w=options.width, l=options.lines) if options.month is None: optdict["c"] = options.spacing optdict["m"] = options.months + if options.month is not None: + _validate_month(options.month) if options.year is None: result = cal.formatyear(datetime.date.today().year, **optdict) elif options.month is None: @@ -795,4 +810,4 @@ def main(args): if __name__ == "__main__": - main(sys.argv) + main() diff --git a/Lib/cgi.py b/Lib/cgi.py deleted file mode 100755 index 8787567be7..0000000000 --- a/Lib/cgi.py +++ /dev/null @@ -1,1012 +0,0 @@ -#! /usr/local/bin/python - -# NOTE: the above "/usr/local/bin/python" is NOT a mistake. It is -# intentionally NOT "/usr/bin/env python". On many systems -# (e.g. Solaris), /usr/local/bin is not in $PATH as passed to CGI -# scripts, and /usr/local/bin is the default directory where Python is -# installed, so /usr/bin/env would be unable to find python. Granted, -# binary installations by Linux vendors often install Python in -# /usr/bin. So let those vendors patch cgi.py to match their choice -# of installation. - -"""Support module for CGI (Common Gateway Interface) scripts. - -This module defines a number of utilities for use by CGI scripts -written in Python. - -The global variable maxlen can be set to an integer indicating the maximum size -of a POST request. POST requests larger than this size will result in a -ValueError being raised during parsing. The default value of this variable is 0, -meaning the request size is unlimited. -""" - -# History -# ------- -# -# Michael McLay started this module. Steve Majewski changed the -# interface to SvFormContentDict and FormContentDict. The multipart -# parsing was inspired by code submitted by Andreas Paepcke. Guido van -# Rossum rewrote, reformatted and documented the module and is currently -# responsible for its maintenance. -# - -__version__ = "2.6" - - -# Imports -# ======= - -from io import StringIO, BytesIO, TextIOWrapper -from collections.abc import Mapping -import sys -import os -import urllib.parse -from email.parser import FeedParser -from email.message import Message -import html -import locale -import tempfile -import warnings - -__all__ = ["MiniFieldStorage", "FieldStorage", "parse", "parse_multipart", - "parse_header", "test", "print_exception", "print_environ", - "print_form", "print_directory", "print_arguments", - "print_environ_usage"] - - -warnings._deprecated(__name__, remove=(3,13)) - -# Logging support -# =============== - -logfile = "" # Filename to log to, if not empty -logfp = None # File object to log to, if not None - -def initlog(*allargs): - """Write a log message, if there is a log file. - - Even though this function is called initlog(), you should always - use log(); log is a variable that is set either to initlog - (initially), to dolog (once the log file has been opened), or to - nolog (when logging is disabled). - - The first argument is a format string; the remaining arguments (if - any) are arguments to the % operator, so e.g. - log("%s: %s", "a", "b") - will write "a: b" to the log file, followed by a newline. - - If the global logfp is not None, it should be a file object to - which log data is written. - - If the global logfp is None, the global logfile may be a string - giving a filename to open, in append mode. This file should be - world writable!!! If the file can't be opened, logging is - silently disabled (since there is no safe place where we could - send an error message). - - """ - global log, logfile, logfp - warnings.warn("cgi.log() is deprecated as of 3.10. Use logging instead", - DeprecationWarning, stacklevel=2) - if logfile and not logfp: - try: - logfp = open(logfile, "a", encoding="locale") - except OSError: - pass - if not logfp: - log = nolog - else: - log = dolog - log(*allargs) - -def dolog(fmt, *args): - """Write a log message to the log file. See initlog() for docs.""" - logfp.write(fmt%args + "\n") - -def nolog(*allargs): - """Dummy function, assigned to log when logging is disabled.""" - pass - -def closelog(): - """Close the log file.""" - global log, logfile, logfp - logfile = '' - if logfp: - logfp.close() - logfp = None - log = initlog - -log = initlog # The current logging function - - -# Parsing functions -# ================= - -# Maximum input we will accept when REQUEST_METHOD is POST -# 0 ==> unlimited input -maxlen = 0 - -def parse(fp=None, environ=os.environ, keep_blank_values=0, - strict_parsing=0, separator='&'): - """Parse a query in the environment or from a file (default stdin) - - Arguments, all optional: - - fp : file pointer; default: sys.stdin.buffer - - environ : environment dictionary; default: os.environ - - keep_blank_values: flag indicating whether blank values in - percent-encoded forms should be treated as blank strings. - A true value indicates that blanks should be retained as - blank strings. The default false value indicates that - blank values are to be ignored and treated as if they were - not included. - - strict_parsing: flag indicating what to do with parsing errors. - If false (the default), errors are silently ignored. - If true, errors raise a ValueError exception. - - separator: str. The symbol to use for separating the query arguments. - Defaults to &. - """ - if fp is None: - fp = sys.stdin - - # field keys and values (except for files) are returned as strings - # an encoding is required to decode the bytes read from self.fp - if hasattr(fp,'encoding'): - encoding = fp.encoding - else: - encoding = 'latin-1' - - # fp.read() must return bytes - if isinstance(fp, TextIOWrapper): - fp = fp.buffer - - if not 'REQUEST_METHOD' in environ: - environ['REQUEST_METHOD'] = 'GET' # For testing stand-alone - if environ['REQUEST_METHOD'] == 'POST': - ctype, pdict = parse_header(environ['CONTENT_TYPE']) - if ctype == 'multipart/form-data': - return parse_multipart(fp, pdict, separator=separator) - elif ctype == 'application/x-www-form-urlencoded': - clength = int(environ['CONTENT_LENGTH']) - if maxlen and clength > maxlen: - raise ValueError('Maximum content length exceeded') - qs = fp.read(clength).decode(encoding) - else: - qs = '' # Unknown content-type - if 'QUERY_STRING' in environ: - if qs: qs = qs + '&' - qs = qs + environ['QUERY_STRING'] - elif sys.argv[1:]: - if qs: qs = qs + '&' - qs = qs + sys.argv[1] - environ['QUERY_STRING'] = qs # XXX Shouldn't, really - elif 'QUERY_STRING' in environ: - qs = environ['QUERY_STRING'] - else: - if sys.argv[1:]: - qs = sys.argv[1] - else: - qs = "" - environ['QUERY_STRING'] = qs # XXX Shouldn't, really - return urllib.parse.parse_qs(qs, keep_blank_values, strict_parsing, - encoding=encoding, separator=separator) - - -def parse_multipart(fp, pdict, encoding="utf-8", errors="replace", separator='&'): - """Parse multipart input. - - Arguments: - fp : input file - pdict: dictionary containing other parameters of content-type header - encoding, errors: request encoding and error handler, passed to - FieldStorage - - Returns a dictionary just like parse_qs(): keys are the field names, each - value is a list of values for that field. For non-file fields, the value - is a list of strings. - """ - # RFC 2046, Section 5.1 : The "multipart" boundary delimiters are always - # represented as 7bit US-ASCII. - boundary = pdict['boundary'].decode('ascii') - ctype = "multipart/form-data; boundary={}".format(boundary) - headers = Message() - headers.set_type(ctype) - try: - headers['Content-Length'] = pdict['CONTENT-LENGTH'] - except KeyError: - pass - fs = FieldStorage(fp, headers=headers, encoding=encoding, errors=errors, - environ={'REQUEST_METHOD': 'POST'}, separator=separator) - return {k: fs.getlist(k) for k in fs} - -def _parseparam(s): - while s[:1] == ';': - s = s[1:] - end = s.find(';') - while end > 0 and (s.count('"', 0, end) - s.count('\\"', 0, end)) % 2: - end = s.find(';', end + 1) - if end < 0: - end = len(s) - f = s[:end] - yield f.strip() - s = s[end:] - -def parse_header(line): - """Parse a Content-type like header. - - Return the main content-type and a dictionary of options. - - """ - parts = _parseparam(';' + line) - key = parts.__next__() - pdict = {} - for p in parts: - i = p.find('=') - if i >= 0: - name = p[:i].strip().lower() - value = p[i+1:].strip() - if len(value) >= 2 and value[0] == value[-1] == '"': - value = value[1:-1] - value = value.replace('\\\\', '\\').replace('\\"', '"') - pdict[name] = value - return key, pdict - - -# Classes for field storage -# ========================= - -class MiniFieldStorage: - - """Like FieldStorage, for use when no file uploads are possible.""" - - # Dummy attributes - filename = None - list = None - type = None - file = None - type_options = {} - disposition = None - disposition_options = {} - headers = {} - - def __init__(self, name, value): - """Constructor from field name and value.""" - self.name = name - self.value = value - # self.file = StringIO(value) - - def __repr__(self): - """Return printable representation.""" - return "MiniFieldStorage(%r, %r)" % (self.name, self.value) - - -class FieldStorage: - - """Store a sequence of fields, reading multipart/form-data. - - This class provides naming, typing, files stored on disk, and - more. At the top level, it is accessible like a dictionary, whose - keys are the field names. (Note: None can occur as a field name.) - The items are either a Python list (if there's multiple values) or - another FieldStorage or MiniFieldStorage object. If it's a single - object, it has the following attributes: - - name: the field name, if specified; otherwise None - - filename: the filename, if specified; otherwise None; this is the - client side filename, *not* the file name on which it is - stored (that's a temporary file you don't deal with) - - value: the value as a *string*; for file uploads, this - transparently reads the file every time you request the value - and returns *bytes* - - file: the file(-like) object from which you can read the data *as - bytes* ; None if the data is stored a simple string - - type: the content-type, or None if not specified - - type_options: dictionary of options specified on the content-type - line - - disposition: content-disposition, or None if not specified - - disposition_options: dictionary of corresponding options - - headers: a dictionary(-like) object (sometimes email.message.Message or a - subclass thereof) containing *all* headers - - The class is subclassable, mostly for the purpose of overriding - the make_file() method, which is called internally to come up with - a file open for reading and writing. This makes it possible to - override the default choice of storing all files in a temporary - directory and unlinking them as soon as they have been opened. - - """ - def __init__(self, fp=None, headers=None, outerboundary=b'', - environ=os.environ, keep_blank_values=0, strict_parsing=0, - limit=None, encoding='utf-8', errors='replace', - max_num_fields=None, separator='&'): - """Constructor. Read multipart/* until last part. - - Arguments, all optional: - - fp : file pointer; default: sys.stdin.buffer - (not used when the request method is GET) - Can be : - 1. a TextIOWrapper object - 2. an object whose read() and readline() methods return bytes - - headers : header dictionary-like object; default: - taken from environ as per CGI spec - - outerboundary : terminating multipart boundary - (for internal use only) - - environ : environment dictionary; default: os.environ - - keep_blank_values: flag indicating whether blank values in - percent-encoded forms should be treated as blank strings. - A true value indicates that blanks should be retained as - blank strings. The default false value indicates that - blank values are to be ignored and treated as if they were - not included. - - strict_parsing: flag indicating what to do with parsing errors. - If false (the default), errors are silently ignored. - If true, errors raise a ValueError exception. - - limit : used internally to read parts of multipart/form-data forms, - to exit from the reading loop when reached. It is the difference - between the form content-length and the number of bytes already - read - - encoding, errors : the encoding and error handler used to decode the - binary stream to strings. Must be the same as the charset defined - for the page sending the form (content-type : meta http-equiv or - header) - - max_num_fields: int. If set, then __init__ throws a ValueError - if there are more than n fields read by parse_qsl(). - - """ - method = 'GET' - self.keep_blank_values = keep_blank_values - self.strict_parsing = strict_parsing - self.max_num_fields = max_num_fields - self.separator = separator - if 'REQUEST_METHOD' in environ: - method = environ['REQUEST_METHOD'].upper() - self.qs_on_post = None - if method == 'GET' or method == 'HEAD': - if 'QUERY_STRING' in environ: - qs = environ['QUERY_STRING'] - elif sys.argv[1:]: - qs = sys.argv[1] - else: - qs = "" - qs = qs.encode(locale.getpreferredencoding(), 'surrogateescape') - fp = BytesIO(qs) - if headers is None: - headers = {'content-type': - "application/x-www-form-urlencoded"} - if headers is None: - headers = {} - if method == 'POST': - # Set default content-type for POST to what's traditional - headers['content-type'] = "application/x-www-form-urlencoded" - if 'CONTENT_TYPE' in environ: - headers['content-type'] = environ['CONTENT_TYPE'] - if 'QUERY_STRING' in environ: - self.qs_on_post = environ['QUERY_STRING'] - if 'CONTENT_LENGTH' in environ: - headers['content-length'] = environ['CONTENT_LENGTH'] - else: - if not (isinstance(headers, (Mapping, Message))): - raise TypeError("headers must be mapping or an instance of " - "email.message.Message") - self.headers = headers - if fp is None: - self.fp = sys.stdin.buffer - # self.fp.read() must return bytes - elif isinstance(fp, TextIOWrapper): - self.fp = fp.buffer - else: - if not (hasattr(fp, 'read') and hasattr(fp, 'readline')): - raise TypeError("fp must be file pointer") - self.fp = fp - - self.encoding = encoding - self.errors = errors - - if not isinstance(outerboundary, bytes): - raise TypeError('outerboundary must be bytes, not %s' - % type(outerboundary).__name__) - self.outerboundary = outerboundary - - self.bytes_read = 0 - self.limit = limit - - # Process content-disposition header - cdisp, pdict = "", {} - if 'content-disposition' in self.headers: - cdisp, pdict = parse_header(self.headers['content-disposition']) - self.disposition = cdisp - self.disposition_options = pdict - self.name = None - if 'name' in pdict: - self.name = pdict['name'] - self.filename = None - if 'filename' in pdict: - self.filename = pdict['filename'] - self._binary_file = self.filename is not None - - # Process content-type header - # - # Honor any existing content-type header. But if there is no - # content-type header, use some sensible defaults. Assume - # outerboundary is "" at the outer level, but something non-false - # inside a multi-part. The default for an inner part is text/plain, - # but for an outer part it should be urlencoded. This should catch - # bogus clients which erroneously forget to include a content-type - # header. - # - # See below for what we do if there does exist a content-type header, - # but it happens to be something we don't understand. - if 'content-type' in self.headers: - ctype, pdict = parse_header(self.headers['content-type']) - elif self.outerboundary or method != 'POST': - ctype, pdict = "text/plain", {} - else: - ctype, pdict = 'application/x-www-form-urlencoded', {} - self.type = ctype - self.type_options = pdict - if 'boundary' in pdict: - self.innerboundary = pdict['boundary'].encode(self.encoding, - self.errors) - else: - self.innerboundary = b"" - - clen = -1 - if 'content-length' in self.headers: - try: - clen = int(self.headers['content-length']) - except ValueError: - pass - if maxlen and clen > maxlen: - raise ValueError('Maximum content length exceeded') - self.length = clen - if self.limit is None and clen >= 0: - self.limit = clen - - self.list = self.file = None - self.done = 0 - if ctype == 'application/x-www-form-urlencoded': - self.read_urlencoded() - elif ctype[:10] == 'multipart/': - self.read_multi(environ, keep_blank_values, strict_parsing) - else: - self.read_single() - - def __del__(self): - try: - self.file.close() - except AttributeError: - pass - - def __enter__(self): - return self - - def __exit__(self, *args): - self.file.close() - - def __repr__(self): - """Return a printable representation.""" - return "FieldStorage(%r, %r, %r)" % ( - self.name, self.filename, self.value) - - def __iter__(self): - return iter(self.keys()) - - def __getattr__(self, name): - if name != 'value': - raise AttributeError(name) - if self.file: - self.file.seek(0) - value = self.file.read() - self.file.seek(0) - elif self.list is not None: - value = self.list - else: - value = None - return value - - def __getitem__(self, key): - """Dictionary style indexing.""" - if self.list is None: - raise TypeError("not indexable") - found = [] - for item in self.list: - if item.name == key: found.append(item) - if not found: - raise KeyError(key) - if len(found) == 1: - return found[0] - else: - return found - - def getvalue(self, key, default=None): - """Dictionary style get() method, including 'value' lookup.""" - if key in self: - value = self[key] - if isinstance(value, list): - return [x.value for x in value] - else: - return value.value - else: - return default - - def getfirst(self, key, default=None): - """ Return the first value received.""" - if key in self: - value = self[key] - if isinstance(value, list): - return value[0].value - else: - return value.value - else: - return default - - def getlist(self, key): - """ Return list of received values.""" - if key in self: - value = self[key] - if isinstance(value, list): - return [x.value for x in value] - else: - return [value.value] - else: - return [] - - def keys(self): - """Dictionary style keys() method.""" - if self.list is None: - raise TypeError("not indexable") - return list(set(item.name for item in self.list)) - - def __contains__(self, key): - """Dictionary style __contains__ method.""" - if self.list is None: - raise TypeError("not indexable") - return any(item.name == key for item in self.list) - - def __len__(self): - """Dictionary style len(x) support.""" - return len(self.keys()) - - def __bool__(self): - if self.list is None: - raise TypeError("Cannot be converted to bool.") - return bool(self.list) - - def read_urlencoded(self): - """Internal: read data in query string format.""" - qs = self.fp.read(self.length) - if not isinstance(qs, bytes): - raise ValueError("%s should return bytes, got %s" \ - % (self.fp, type(qs).__name__)) - qs = qs.decode(self.encoding, self.errors) - if self.qs_on_post: - qs += '&' + self.qs_on_post - query = urllib.parse.parse_qsl( - qs, self.keep_blank_values, self.strict_parsing, - encoding=self.encoding, errors=self.errors, - max_num_fields=self.max_num_fields, separator=self.separator) - self.list = [MiniFieldStorage(key, value) for key, value in query] - self.skip_lines() - - FieldStorageClass = None - - def read_multi(self, environ, keep_blank_values, strict_parsing): - """Internal: read a part that is itself multipart.""" - ib = self.innerboundary - if not valid_boundary(ib): - raise ValueError('Invalid boundary in multipart form: %r' % (ib,)) - self.list = [] - if self.qs_on_post: - query = urllib.parse.parse_qsl( - self.qs_on_post, self.keep_blank_values, self.strict_parsing, - encoding=self.encoding, errors=self.errors, - max_num_fields=self.max_num_fields, separator=self.separator) - self.list.extend(MiniFieldStorage(key, value) for key, value in query) - - klass = self.FieldStorageClass or self.__class__ - first_line = self.fp.readline() # bytes - if not isinstance(first_line, bytes): - raise ValueError("%s should return bytes, got %s" \ - % (self.fp, type(first_line).__name__)) - self.bytes_read += len(first_line) - - # Ensure that we consume the file until we've hit our inner boundary - while (first_line.strip() != (b"--" + self.innerboundary) and - first_line): - first_line = self.fp.readline() - self.bytes_read += len(first_line) - - # Propagate max_num_fields into the sub class appropriately - max_num_fields = self.max_num_fields - if max_num_fields is not None: - max_num_fields -= len(self.list) - - while True: - parser = FeedParser() - hdr_text = b"" - while True: - data = self.fp.readline() - hdr_text += data - if not data.strip(): - break - if not hdr_text: - break - # parser takes strings, not bytes - self.bytes_read += len(hdr_text) - parser.feed(hdr_text.decode(self.encoding, self.errors)) - headers = parser.close() - - # Some clients add Content-Length for part headers, ignore them - if 'content-length' in headers: - del headers['content-length'] - - limit = None if self.limit is None \ - else self.limit - self.bytes_read - part = klass(self.fp, headers, ib, environ, keep_blank_values, - strict_parsing, limit, - self.encoding, self.errors, max_num_fields, self.separator) - - if max_num_fields is not None: - max_num_fields -= 1 - if part.list: - max_num_fields -= len(part.list) - if max_num_fields < 0: - raise ValueError('Max number of fields exceeded') - - self.bytes_read += part.bytes_read - self.list.append(part) - if part.done or self.bytes_read >= self.length > 0: - break - self.skip_lines() - - def read_single(self): - """Internal: read an atomic part.""" - if self.length >= 0: - self.read_binary() - self.skip_lines() - else: - self.read_lines() - self.file.seek(0) - - bufsize = 8*1024 # I/O buffering size for copy to file - - def read_binary(self): - """Internal: read binary data.""" - self.file = self.make_file() - todo = self.length - if todo >= 0: - while todo > 0: - data = self.fp.read(min(todo, self.bufsize)) # bytes - if not isinstance(data, bytes): - raise ValueError("%s should return bytes, got %s" - % (self.fp, type(data).__name__)) - self.bytes_read += len(data) - if not data: - self.done = -1 - break - self.file.write(data) - todo = todo - len(data) - - def read_lines(self): - """Internal: read lines until EOF or outerboundary.""" - if self._binary_file: - self.file = self.__file = BytesIO() # store data as bytes for files - else: - self.file = self.__file = StringIO() # as strings for other fields - if self.outerboundary: - self.read_lines_to_outerboundary() - else: - self.read_lines_to_eof() - - def __write(self, line): - """line is always bytes, not string""" - if self.__file is not None: - if self.__file.tell() + len(line) > 1000: - self.file = self.make_file() - data = self.__file.getvalue() - self.file.write(data) - self.__file = None - if self._binary_file: - # keep bytes - self.file.write(line) - else: - # decode to string - self.file.write(line.decode(self.encoding, self.errors)) - - def read_lines_to_eof(self): - """Internal: read lines until EOF.""" - while 1: - line = self.fp.readline(1<<16) # bytes - self.bytes_read += len(line) - if not line: - self.done = -1 - break - self.__write(line) - - def read_lines_to_outerboundary(self): - """Internal: read lines until outerboundary. - Data is read as bytes: boundaries and line ends must be converted - to bytes for comparisons. - """ - next_boundary = b"--" + self.outerboundary - last_boundary = next_boundary + b"--" - delim = b"" - last_line_lfend = True - _read = 0 - while 1: - - if self.limit is not None and 0 <= self.limit <= _read: - break - line = self.fp.readline(1<<16) # bytes - self.bytes_read += len(line) - _read += len(line) - if not line: - self.done = -1 - break - if delim == b"\r": - line = delim + line - delim = b"" - if line.startswith(b"--") and last_line_lfend: - strippedline = line.rstrip() - if strippedline == next_boundary: - break - if strippedline == last_boundary: - self.done = 1 - break - odelim = delim - if line.endswith(b"\r\n"): - delim = b"\r\n" - line = line[:-2] - last_line_lfend = True - elif line.endswith(b"\n"): - delim = b"\n" - line = line[:-1] - last_line_lfend = True - elif line.endswith(b"\r"): - # We may interrupt \r\n sequences if they span the 2**16 - # byte boundary - delim = b"\r" - line = line[:-1] - last_line_lfend = False - else: - delim = b"" - last_line_lfend = False - self.__write(odelim + line) - - def skip_lines(self): - """Internal: skip lines until outer boundary if defined.""" - if not self.outerboundary or self.done: - return - next_boundary = b"--" + self.outerboundary - last_boundary = next_boundary + b"--" - last_line_lfend = True - while True: - line = self.fp.readline(1<<16) - self.bytes_read += len(line) - if not line: - self.done = -1 - break - if line.endswith(b"--") and last_line_lfend: - strippedline = line.strip() - if strippedline == next_boundary: - break - if strippedline == last_boundary: - self.done = 1 - break - last_line_lfend = line.endswith(b'\n') - - def make_file(self): - """Overridable: return a readable & writable file. - - The file will be used as follows: - - data is written to it - - seek(0) - - data is read from it - - The file is opened in binary mode for files, in text mode - for other fields - - This version opens a temporary file for reading and writing, - and immediately deletes (unlinks) it. The trick (on Unix!) is - that the file can still be used, but it can't be opened by - another process, and it will automatically be deleted when it - is closed or when the current process terminates. - - If you want a more permanent file, you derive a class which - overrides this method. If you want a visible temporary file - that is nevertheless automatically deleted when the script - terminates, try defining a __del__ method in a derived class - which unlinks the temporary files you have created. - - """ - if self._binary_file: - return tempfile.TemporaryFile("wb+") - else: - return tempfile.TemporaryFile("w+", - encoding=self.encoding, newline = '\n') - - -# Test/debug code -# =============== - -def test(environ=os.environ): - """Robust test CGI script, usable as main program. - - Write minimal HTTP headers and dump all information provided to - the script in HTML form. - - """ - print("Content-type: text/html") - print() - sys.stderr = sys.stdout - try: - form = FieldStorage() # Replace with other classes to test those - print_directory() - print_arguments() - print_form(form) - print_environ(environ) - print_environ_usage() - def f(): - exec("testing print_exception() -- italics?") - def g(f=f): - f() - print("

What follows is a test, not an actual exception:

") - g() - except: - print_exception() - - print("

Second try with a small maxlen...

") - - global maxlen - maxlen = 50 - try: - form = FieldStorage() # Replace with other classes to test those - print_directory() - print_arguments() - print_form(form) - print_environ(environ) - except: - print_exception() - -def print_exception(type=None, value=None, tb=None, limit=None): - if type is None: - type, value, tb = sys.exc_info() - import traceback - print() - print("

Traceback (most recent call last):

") - list = traceback.format_tb(tb, limit) + \ - traceback.format_exception_only(type, value) - print("
%s%s
" % ( - html.escape("".join(list[:-1])), - html.escape(list[-1]), - )) - del tb - -def print_environ(environ=os.environ): - """Dump the shell environment as HTML.""" - keys = sorted(environ.keys()) - print() - print("

Shell Environment:

") - print("
") - for key in keys: - print("
", html.escape(key), "
", html.escape(environ[key])) - print("
") - print() - -def print_form(form): - """Dump the contents of a form as HTML.""" - keys = sorted(form.keys()) - print() - print("

Form Contents:

") - if not keys: - print("

No form fields.") - print("

") - for key in keys: - print("
" + html.escape(key) + ":", end=' ') - value = form[key] - print("" + html.escape(repr(type(value))) + "") - print("
" + html.escape(repr(value))) - print("
") - print() - -def print_directory(): - """Dump the current directory as HTML.""" - print() - print("

Current Working Directory:

") - try: - pwd = os.getcwd() - except OSError as msg: - print("OSError:", html.escape(str(msg))) - else: - print(html.escape(pwd)) - print() - -def print_arguments(): - print() - print("

Command Line Arguments:

") - print() - print(sys.argv) - print() - -def print_environ_usage(): - """Dump a list of environment variables used by CGI as HTML.""" - print(""" -

These environment variables could have been set:

-
    -
  • AUTH_TYPE -
  • CONTENT_LENGTH -
  • CONTENT_TYPE -
  • DATE_GMT -
  • DATE_LOCAL -
  • DOCUMENT_NAME -
  • DOCUMENT_ROOT -
  • DOCUMENT_URI -
  • GATEWAY_INTERFACE -
  • LAST_MODIFIED -
  • PATH -
  • PATH_INFO -
  • PATH_TRANSLATED -
  • QUERY_STRING -
  • REMOTE_ADDR -
  • REMOTE_HOST -
  • REMOTE_IDENT -
  • REMOTE_USER -
  • REQUEST_METHOD -
  • SCRIPT_NAME -
  • SERVER_NAME -
  • SERVER_PORT -
  • SERVER_PROTOCOL -
  • SERVER_ROOT -
  • SERVER_SOFTWARE -
-In addition, HTTP headers sent by the server may be passed in the -environment as well. Here are some common variable names: -
    -
  • HTTP_ACCEPT -
  • HTTP_CONNECTION -
  • HTTP_HOST -
  • HTTP_PRAGMA -
  • HTTP_REFERER -
  • HTTP_USER_AGENT -
-""") - - -# Utilities -# ========= - -def valid_boundary(s): - import re - if isinstance(s, bytes): - _vb_pattern = b"^[ -~]{0,200}[!-~]$" - else: - _vb_pattern = "^[ -~]{0,200}[!-~]$" - return re.match(_vb_pattern, s) - -# Invoke mainline -# =============== - -# Call test() when this file is run as a script (not imported as a module) -if __name__ == '__main__': - test() diff --git a/Lib/cgitb.py b/Lib/cgitb.py deleted file mode 100644 index f6b97f25c5..0000000000 --- a/Lib/cgitb.py +++ /dev/null @@ -1,332 +0,0 @@ -"""More comprehensive traceback formatting for Python scripts. - -To enable this module, do: - - import cgitb; cgitb.enable() - -at the top of your script. The optional arguments to enable() are: - - display - if true, tracebacks are displayed in the web browser - logdir - if set, tracebacks are written to files in this directory - context - number of lines of source code to show for each stack frame - format - 'text' or 'html' controls the output format - -By default, tracebacks are displayed but not saved, the context is 5 lines -and the output format is 'html' (for backwards compatibility with the -original use of this module) - -Alternatively, if you have caught an exception and want cgitb to display it -for you, call cgitb.handler(). The optional argument to handler() is a -3-item tuple (etype, evalue, etb) just like the value of sys.exc_info(). -The default handler displays output as HTML. - -""" -import inspect -import keyword -import linecache -import os -import pydoc -import sys -import tempfile -import time -import tokenize -import traceback -import warnings -from html import escape as html_escape - -warnings._deprecated(__name__, remove=(3, 13)) - - -def reset(): - """Return a string that resets the CGI and browser to a known state.""" - return ''' - --> --> - - ''' - -__UNDEF__ = [] # a special sentinel object -def small(text): - if text: - return '' + text + '' - else: - return '' - -def strong(text): - if text: - return '' + text + '' - else: - return '' - -def grey(text): - if text: - return '' + text + '' - else: - return '' - -def lookup(name, frame, locals): - """Find the value for a given name in the given environment.""" - if name in locals: - return 'local', locals[name] - if name in frame.f_globals: - return 'global', frame.f_globals[name] - if '__builtins__' in frame.f_globals: - builtins = frame.f_globals['__builtins__'] - if isinstance(builtins, dict): - if name in builtins: - return 'builtin', builtins[name] - else: - if hasattr(builtins, name): - return 'builtin', getattr(builtins, name) - return None, __UNDEF__ - -def scanvars(reader, frame, locals): - """Scan one logical line of Python and look up values of variables used.""" - vars, lasttoken, parent, prefix, value = [], None, None, '', __UNDEF__ - for ttype, token, start, end, line in tokenize.generate_tokens(reader): - if ttype == tokenize.NEWLINE: break - if ttype == tokenize.NAME and token not in keyword.kwlist: - if lasttoken == '.': - if parent is not __UNDEF__: - value = getattr(parent, token, __UNDEF__) - vars.append((prefix + token, prefix, value)) - else: - where, value = lookup(token, frame, locals) - vars.append((token, where, value)) - elif token == '.': - prefix += lasttoken + '.' - parent = value - else: - parent, prefix = None, '' - lasttoken = token - return vars - -def html(einfo, context=5): - """Return a nice HTML document describing a given traceback.""" - etype, evalue, etb = einfo - if isinstance(etype, type): - etype = etype.__name__ - pyver = 'Python ' + sys.version.split()[0] + ': ' + sys.executable - date = time.ctime(time.time()) - head = f''' - - - - - -
 
- 
-{html_escape(str(etype))}		 -{pyver}
{date}
-

A problem occurred in a Python script. Here is the sequence of -function calls leading up to the error, in the order they occurred.

''' - - indent = '' + small(' ' * 5) + ' ' - frames = [] - records = inspect.getinnerframes(etb, context) - for frame, file, lnum, func, lines, index in records: - if file: - file = os.path.abspath(file) - link = '%s' % (file, pydoc.html.escape(file)) - else: - file = link = '?' - args, varargs, varkw, locals = inspect.getargvalues(frame) - call = '' - if func != '?': - call = 'in ' + strong(pydoc.html.escape(func)) - if func != "": - call += inspect.formatargvalues(args, varargs, varkw, locals, - formatvalue=lambda value: '=' + pydoc.html.repr(value)) - - highlight = {} - def reader(lnum=[lnum]): - highlight[lnum[0]] = 1 - try: return linecache.getline(file, lnum[0]) - finally: lnum[0] += 1 - vars = scanvars(reader, frame, locals) - - rows = ['%s%s %s' % - (' ', link, call)] - if index is not None: - i = lnum - index - for line in lines: - num = small(' ' * (5-len(str(i))) + str(i)) + ' ' - if i in highlight: - line = '=>%s%s' % (num, pydoc.html.preformat(line)) - rows.append('%s' % line) - else: - line = '  %s%s' % (num, pydoc.html.preformat(line)) - rows.append('%s' % grey(line)) - i += 1 - - done, dump = {}, [] - for name, where, value in vars: - if name in done: continue - done[name] = 1 - if value is not __UNDEF__: - if where in ('global', 'builtin'): - name = ('%s ' % where) + strong(name) - elif where == 'local': - name = strong(name) - else: - name = where + strong(name.split('.')[-1]) - dump.append('%s = %s' % (name, pydoc.html.repr(value))) - else: - dump.append(name + ' undefined') - - rows.append('%s' % small(grey(', '.join(dump)))) - frames.append(''' - -%s
''' % '\n'.join(rows)) - - exception = ['

%s: %s' % (strong(pydoc.html.escape(str(etype))), - pydoc.html.escape(str(evalue)))] - for name in dir(evalue): - if name[:1] == '_': continue - value = pydoc.html.repr(getattr(evalue, name)) - exception.append('\n
%s%s =\n%s' % (indent, name, value)) - - return head + ''.join(frames) + ''.join(exception) + ''' - - - -''' % pydoc.html.escape( - ''.join(traceback.format_exception(etype, evalue, etb))) - -def text(einfo, context=5): - """Return a plain text document describing a given traceback.""" - etype, evalue, etb = einfo - if isinstance(etype, type): - etype = etype.__name__ - pyver = 'Python ' + sys.version.split()[0] + ': ' + sys.executable - date = time.ctime(time.time()) - head = "%s\n%s\n%s\n" % (str(etype), pyver, date) + ''' -A problem occurred in a Python script. Here is the sequence of -function calls leading up to the error, in the order they occurred. -''' - - frames = [] - records = inspect.getinnerframes(etb, context) - for frame, file, lnum, func, lines, index in records: - file = file and os.path.abspath(file) or '?' - args, varargs, varkw, locals = inspect.getargvalues(frame) - call = '' - if func != '?': - call = 'in ' + func - if func != "": - call += inspect.formatargvalues(args, varargs, varkw, locals, - formatvalue=lambda value: '=' + pydoc.text.repr(value)) - - highlight = {} - def reader(lnum=[lnum]): - highlight[lnum[0]] = 1 - try: return linecache.getline(file, lnum[0]) - finally: lnum[0] += 1 - vars = scanvars(reader, frame, locals) - - rows = [' %s %s' % (file, call)] - if index is not None: - i = lnum - index - for line in lines: - num = '%5d ' % i - rows.append(num+line.rstrip()) - i += 1 - - done, dump = {}, [] - for name, where, value in vars: - if name in done: continue - done[name] = 1 - if value is not __UNDEF__: - if where == 'global': name = 'global ' + name - elif where != 'local': name = where + name.split('.')[-1] - dump.append('%s = %s' % (name, pydoc.text.repr(value))) - else: - dump.append(name + ' undefined') - - rows.append('\n'.join(dump)) - frames.append('\n%s\n' % '\n'.join(rows)) - - exception = ['%s: %s' % (str(etype), str(evalue))] - for name in dir(evalue): - value = pydoc.text.repr(getattr(evalue, name)) - exception.append('\n%s%s = %s' % (" "*4, name, value)) - - return head + ''.join(frames) + ''.join(exception) + ''' - -The above is a description of an error in a Python program. Here is -the original traceback: - -%s -''' % ''.join(traceback.format_exception(etype, evalue, etb)) - -class Hook: - """A hook to replace sys.excepthook that shows tracebacks in HTML.""" - - def __init__(self, display=1, logdir=None, context=5, file=None, - format="html"): - self.display = display # send tracebacks to browser if true - self.logdir = logdir # log tracebacks to files if not None - self.context = context # number of source code lines per frame - self.file = file or sys.stdout # place to send the output - self.format = format - - def __call__(self, etype, evalue, etb): - self.handle((etype, evalue, etb)) - - def handle(self, info=None): - info = info or sys.exc_info() - if self.format == "html": - self.file.write(reset()) - - formatter = (self.format=="html") and html or text - plain = False - try: - doc = formatter(info, self.context) - except: # just in case something goes wrong - doc = ''.join(traceback.format_exception(*info)) - plain = True - - if self.display: - if plain: - doc = pydoc.html.escape(doc) - self.file.write('

' + doc + '
\n') - else: - self.file.write(doc + '\n') - else: - self.file.write('

A problem occurred in a Python script.\n') - - if self.logdir is not None: - suffix = ['.txt', '.html'][self.format=="html"] - (fd, path) = tempfile.mkstemp(suffix=suffix, dir=self.logdir) - - try: - with os.fdopen(fd, 'w') as file: - file.write(doc) - msg = '%s contains the description of this error.' % path - except: - msg = 'Tried to save traceback to %s, but failed.' % path - - if self.format == 'html': - self.file.write('

%s

\n' % msg) - else: - self.file.write(msg + '\n') - try: - self.file.flush() - except: pass - -handler = Hook().handle -def enable(display=1, logdir=None, context=5, format="html"): - """Install an exception handler that formats tracebacks as HTML. - - The optional argument 'display' can be set to 0 to suppress sending the - traceback to the browser, and 'logdir' can be set to a directory to cause - tracebacks to be written to files there.""" - sys.excepthook = Hook(display=display, logdir=logdir, - context=context, format=format) diff --git a/Lib/chunk.py b/Lib/chunk.py deleted file mode 100644 index 618781efd1..0000000000 --- a/Lib/chunk.py +++ /dev/null @@ -1,173 +0,0 @@ -"""Simple class to read IFF chunks. - -An IFF chunk (used in formats such as AIFF, TIFF, RMFF (RealMedia File -Format)) has the following structure: - -+----------------+ -| ID (4 bytes) | -+----------------+ -| size (4 bytes) | -+----------------+ -| data | -| ... | -+----------------+ - -The ID is a 4-byte string which identifies the type of chunk. - -The size field (a 32-bit value, encoded using big-endian byte order) -gives the size of the whole chunk, including the 8-byte header. - -Usually an IFF-type file consists of one or more chunks. The proposed -usage of the Chunk class defined here is to instantiate an instance at -the start of each chunk and read from the instance until it reaches -the end, after which a new instance can be instantiated. At the end -of the file, creating a new instance will fail with an EOFError -exception. - -Usage: -while True: - try: - chunk = Chunk(file) - except EOFError: - break - chunktype = chunk.getname() - while True: - data = chunk.read(nbytes) - if not data: - pass - # do something with data - -The interface is file-like. The implemented methods are: -read, close, seek, tell, isatty. -Extra methods are: skip() (called by close, skips to the end of the chunk), -getname() (returns the name (ID) of the chunk) - -The __init__ method has one required argument, a file-like object -(including a chunk instance), and one optional argument, a flag which -specifies whether or not chunks are aligned on 2-byte boundaries. The -default is 1, i.e. aligned. -""" - -import warnings - -warnings._deprecated(__name__, remove=(3, 13)) - -class Chunk: - def __init__(self, file, align=True, bigendian=True, inclheader=False): - import struct - self.closed = False - self.align = align # whether to align to word (2-byte) boundaries - if bigendian: - strflag = '>' - else: - strflag = '<' - self.file = file - self.chunkname = file.read(4) - if len(self.chunkname) < 4: - raise EOFError - try: - self.chunksize = struct.unpack_from(strflag+'L', file.read(4))[0] - except struct.error: - raise EOFError from None - if inclheader: - self.chunksize = self.chunksize - 8 # subtract header - self.size_read = 0 - try: - self.offset = self.file.tell() - except (AttributeError, OSError): - self.seekable = False - else: - self.seekable = True - - def getname(self): - """Return the name (ID) of the current chunk.""" - return self.chunkname - - def getsize(self): - """Return the size of the current chunk.""" - return self.chunksize - - def close(self): - if not self.closed: - try: - self.skip() - finally: - self.closed = True - - def isatty(self): - if self.closed: - raise ValueError("I/O operation on closed file") - return False - - def seek(self, pos, whence=0): - """Seek to specified position into the chunk. - Default position is 0 (start of chunk). - If the file is not seekable, this will result in an error. - """ - - if self.closed: - raise ValueError("I/O operation on closed file") - if not self.seekable: - raise OSError("cannot seek") - if whence == 1: - pos = pos + self.size_read - elif whence == 2: - pos = pos + self.chunksize - if pos < 0 or pos > self.chunksize: - raise RuntimeError - self.file.seek(self.offset + pos, 0) - self.size_read = pos - - def tell(self): - if self.closed: - raise ValueError("I/O operation on closed file") - return self.size_read - - def read(self, size=-1): - """Read at most size bytes from the chunk. - If size is omitted or negative, read until the end - of the chunk. - """ - - if self.closed: - raise ValueError("I/O operation on closed file") - if self.size_read >= self.chunksize: - return b'' - if size < 0: - size = self.chunksize - self.size_read - if size > self.chunksize - self.size_read: - size = self.chunksize - self.size_read - data = self.file.read(size) - self.size_read = self.size_read + len(data) - if self.size_read == self.chunksize and \ - self.align and \ - (self.chunksize & 1): - dummy = self.file.read(1) - self.size_read = self.size_read + len(dummy) - return data - - def skip(self): - """Skip the rest of the chunk. - If you are not interested in the contents of the chunk, - this method should be called so that the file points to - the start of the next chunk. - """ - - if self.closed: - raise ValueError("I/O operation on closed file") - if self.seekable: - try: - n = self.chunksize - self.size_read - # maybe fix alignment - if self.align and (self.chunksize & 1): - n = n + 1 - self.file.seek(n, 1) - self.size_read = self.size_read + n - return - except OSError: - pass - while self.size_read < self.chunksize: - n = min(8192, self.chunksize - self.size_read) - dummy = self.read(n) - if not dummy: - raise EOFError diff --git a/Lib/codeop.py b/Lib/codeop.py index 4dd096574b..96868047cb 100644 --- a/Lib/codeop.py +++ b/Lib/codeop.py @@ -66,7 +66,12 @@ def _maybe_compile(compiler, source, filename, symbol): compiler(source + "\n", filename, symbol) return None except SyntaxError as e: - if "incomplete input" in str(e): + # XXX: RustPython; support multiline definitions in REPL + # See also: https://github.com/RustPython/RustPython/pull/5743 + strerr = str(e) + if source.endswith(":") and "expected an indented block" in strerr: + return None + elif "incomplete input" in str(e): return None # fallthrough diff --git a/Lib/colorsys.py b/Lib/colorsys.py index bc897bd0f9..e97f91718a 100644 --- a/Lib/colorsys.py +++ b/Lib/colorsys.py @@ -24,7 +24,7 @@ __all__ = ["rgb_to_yiq","yiq_to_rgb","rgb_to_hls","hls_to_rgb", "rgb_to_hsv","hsv_to_rgb"] -# Some floating point constants +# Some floating-point constants ONE_THIRD = 1.0/3.0 ONE_SIXTH = 1.0/6.0 diff --git a/Lib/contextlib.py b/Lib/contextlib.py index 58e9a49887..b831d8916c 100644 --- a/Lib/contextlib.py +++ b/Lib/contextlib.py @@ -145,14 +145,17 @@ def __exit__(self, typ, value, traceback): except StopIteration: return False else: - raise RuntimeError("generator didn't stop") + try: + raise RuntimeError("generator didn't stop") + finally: + self.gen.close() else: if value is None: # Need to force instantiation so we can reliably # tell if we get the same exception back value = typ() try: - self.gen.throw(typ, value, traceback) + self.gen.throw(value) except StopIteration as exc: # Suppress StopIteration *unless* it's the same exception that # was passed to throw(). This prevents a StopIteration @@ -187,7 +190,10 @@ def __exit__(self, typ, value, traceback): raise exc.__traceback__ = traceback return False - raise RuntimeError("generator didn't stop after throw()") + try: + raise RuntimeError("generator didn't stop after throw()") + finally: + self.gen.close() class _AsyncGeneratorContextManager( _GeneratorContextManagerBase, @@ -212,14 +218,17 @@ async def __aexit__(self, typ, value, traceback): except StopAsyncIteration: return False else: - raise RuntimeError("generator didn't stop") + try: + raise RuntimeError("generator didn't stop") + finally: + await self.gen.aclose() else: if value is None: # Need to force instantiation so we can reliably # tell if we get the same exception back value = typ() try: - await self.gen.athrow(typ, value, traceback) + await self.gen.athrow(value) except StopAsyncIteration as exc: # Suppress StopIteration *unless* it's the same exception that # was passed to throw(). This prevents a StopIteration @@ -254,7 +263,10 @@ async def __aexit__(self, typ, value, traceback): raise exc.__traceback__ = traceback return False - raise RuntimeError("generator didn't stop after athrow()") + try: + raise RuntimeError("generator didn't stop after athrow()") + finally: + await self.gen.aclose() def contextmanager(func): @@ -441,7 +453,16 @@ def __exit__(self, exctype, excinst, exctb): # exactly reproduce the limitations of the CPython interpreter. # # See http://bugs.python.org/issue12029 for more details - return exctype is not None and issubclass(exctype, self._exceptions) + if exctype is None: + return + if issubclass(exctype, self._exceptions): + return True + if issubclass(exctype, BaseExceptionGroup): + match, rest = excinst.split(self._exceptions) + if rest is None: + return True + raise rest + return False class _BaseExitStack: diff --git a/Lib/ctypes/__init__.py b/Lib/ctypes/__init__.py index 2e9d4c5e72..b8b005061f 100644 --- a/Lib/ctypes/__init__.py +++ b/Lib/ctypes/__init__.py @@ -36,6 +36,9 @@ FUNCFLAG_USE_ERRNO as _FUNCFLAG_USE_ERRNO, \ FUNCFLAG_USE_LASTERROR as _FUNCFLAG_USE_LASTERROR +# TODO: RUSTPYTHON remove this +from _ctypes import _non_existing_function + # WINOLEAPI -> HRESULT # WINOLEAPI_(type) # @@ -296,7 +299,9 @@ def create_unicode_buffer(init, size=None): return buf elif isinstance(init, int): _sys.audit("ctypes.create_unicode_buffer", None, init) - buftype = c_wchar * init + # XXX: RUSTPYTHON + # buftype = c_wchar * init + buftype = c_wchar.__mul__(init) buf = buftype() return buf raise TypeError(init) @@ -495,14 +500,15 @@ def WinError(code=None, descr=None): c_ssize_t = c_longlong # functions - from _ctypes import _memmove_addr, _memset_addr, _string_at_addr, _cast_addr ## void *memmove(void *, const void *, size_t); -memmove = CFUNCTYPE(c_void_p, c_void_p, c_void_p, c_size_t)(_memmove_addr) +# XXX: RUSTPYTHON +# memmove = CFUNCTYPE(c_void_p, c_void_p, c_void_p, c_size_t)(_memmove_addr) ## void *memset(void *, int, size_t) -memset = CFUNCTYPE(c_void_p, c_void_p, c_int, c_size_t)(_memset_addr) +# XXX: RUSTPYTHON +# memset = CFUNCTYPE(c_void_p, c_void_p, c_int, c_size_t)(_memset_addr) def PYFUNCTYPE(restype, *argtypes): class CFunctionType(_CFuncPtr): @@ -511,11 +517,13 @@ class CFunctionType(_CFuncPtr): _flags_ = _FUNCFLAG_CDECL | _FUNCFLAG_PYTHONAPI return CFunctionType -_cast = PYFUNCTYPE(py_object, c_void_p, py_object, py_object)(_cast_addr) +# XXX: RUSTPYTHON +# _cast = PYFUNCTYPE(py_object, c_void_p, py_object, py_object)(_cast_addr) def cast(obj, typ): return _cast(obj, obj, typ) -_string_at = PYFUNCTYPE(py_object, c_void_p, c_int)(_string_at_addr) +# XXX: RUSTPYTHON +# _string_at = PYFUNCTYPE(py_object, c_void_p, c_int)(_string_at_addr) def string_at(ptr, size=-1): """string_at(addr[, size]) -> string @@ -527,7 +535,8 @@ def string_at(ptr, size=-1): except ImportError: pass else: - _wstring_at = PYFUNCTYPE(py_object, c_void_p, c_int)(_wstring_at_addr) + # XXX: RUSTPYTHON + # _wstring_at = PYFUNCTYPE(py_object, c_void_p, c_int)(_wstring_at_addr) def wstring_at(ptr, size=-1): """wstring_at(addr[, size]) -> string diff --git a/Lib/ctypes/test/test_numbers.py b/Lib/ctypes/test/test_numbers.py index db500e812b..a5c661b0e9 100644 --- a/Lib/ctypes/test/test_numbers.py +++ b/Lib/ctypes/test/test_numbers.py @@ -82,14 +82,6 @@ def test_typeerror(self): self.assertRaises(TypeError, t, "") self.assertRaises(TypeError, t, None) - @unittest.skip('test disabled') - def test_valid_ranges(self): - # invalid values of the correct type - # raise ValueError (not OverflowError) - for t, (l, h) in zip(unsigned_types, unsigned_ranges): - self.assertRaises(ValueError, t, l-1) - self.assertRaises(ValueError, t, h+1) - def test_from_param(self): # the from_param class method attribute always # returns PyCArgObject instances @@ -106,7 +98,7 @@ def test_byref(self): def test_floats(self): # c_float and c_double can be created from # Python int and float - class FloatLike(object): + class FloatLike: def __float__(self): return 2.0 f = FloatLike() @@ -117,15 +109,15 @@ def __float__(self): self.assertEqual(t(f).value, 2.0) def test_integers(self): - class FloatLike(object): + class FloatLike: def __float__(self): return 2.0 f = FloatLike() - class IntLike(object): + class IntLike: def __int__(self): return 2 d = IntLike() - class IndexLike(object): + class IndexLike: def __index__(self): return 2 i = IndexLike() @@ -155,10 +147,10 @@ def test_alignments(self): # alignment of the type... self.assertEqual((code, alignment(t)), - (code, align)) + (code, align)) # and alignment of an instance self.assertEqual((code, alignment(t())), - (code, align)) + (code, align)) def test_int_from_address(self): from array import array @@ -205,19 +197,6 @@ def test_char_from_address(self): a[0] = ord('?') self.assertEqual(v.value, b'?') - # array does not support c_bool / 't' - @unittest.skip('test disabled') - def test_bool_from_address(self): - from ctypes import c_bool - from array import array - a = array(c_bool._type_, [True]) - v = t.from_address(a.buffer_info()[0]) - self.assertEqual(v.value, a[0]) - self.assertEqual(type(v) is t) - a[0] = False - self.assertEqual(v.value, a[0]) - self.assertEqual(type(v) is t) - def test_init(self): # c_int() can be initialized from Python's int, and c_int. # Not from c_long or so, which seems strange, abc should @@ -234,62 +213,6 @@ def test_float_overflow(self): if (hasattr(t, "__ctype_le__")): self.assertRaises(OverflowError, t.__ctype_le__, big_int) - @unittest.skip('test disabled') - def test_perf(self): - check_perf() - -from ctypes import _SimpleCData -class c_int_S(_SimpleCData): - _type_ = "i" - __slots__ = [] - -def run_test(rep, msg, func, arg=None): -## items = [None] * rep - items = range(rep) - from time import perf_counter as clock - if arg is not None: - start = clock() - for i in items: - func(arg); func(arg); func(arg); func(arg); func(arg) - stop = clock() - else: - start = clock() - for i in items: - func(); func(); func(); func(); func() - stop = clock() - print("%15s: %.2f us" % (msg, ((stop-start)*1e6/5/rep))) - -def check_perf(): - # Construct 5 objects - from ctypes import c_int - - REP = 200000 - - run_test(REP, "int()", int) - run_test(REP, "int(999)", int) - run_test(REP, "c_int()", c_int) - run_test(REP, "c_int(999)", c_int) - run_test(REP, "c_int_S()", c_int_S) - run_test(REP, "c_int_S(999)", c_int_S) - -# Python 2.3 -OO, win2k, P4 700 MHz: -# -# int(): 0.87 us -# int(999): 0.87 us -# c_int(): 3.35 us -# c_int(999): 3.34 us -# c_int_S(): 3.23 us -# c_int_S(999): 3.24 us - -# Python 2.2 -OO, win2k, P4 700 MHz: -# -# int(): 0.89 us -# int(999): 0.89 us -# c_int(): 9.99 us -# c_int(999): 10.02 us -# c_int_S(): 9.87 us -# c_int_S(999): 9.85 us if __name__ == '__main__': -## check_perf() unittest.main() diff --git a/Lib/difflib.py b/Lib/difflib.py index ba0b256969..3425e438c9 100644 --- a/Lib/difflib.py +++ b/Lib/difflib.py @@ -1200,25 +1200,6 @@ def context_diff(a, b, fromfile='', tofile='', strings for 'fromfile', 'tofile', 'fromfiledate', and 'tofiledate'. The modification times are normally expressed in the ISO 8601 format. If not specified, the strings default to blanks. - - Example: - - >>> print(''.join(context_diff('one\ntwo\nthree\nfour\n'.splitlines(True), - ... 'zero\none\ntree\nfour\n'.splitlines(True), 'Original', 'Current')), - ... end="") - *** Original - --- Current - *************** - *** 1,4 **** - one - ! two - ! three - four - --- 1,4 ---- - + zero - one - ! tree - four """ _check_types(a, b, fromfile, tofile, fromfiledate, tofiledate, lineterm) diff --git a/Lib/doctest.py b/Lib/doctest.py index 65466b4983..387f71b184 100644 --- a/Lib/doctest.py +++ b/Lib/doctest.py @@ -102,7 +102,7 @@ def _test(): import sys import traceback import unittest -from io import StringIO # XXX: RUSTPYTHON; , IncrementalNewlineDecoder +from io import StringIO, IncrementalNewlineDecoder from collections import namedtuple TestResults = namedtuple('TestResults', 'failed attempted') @@ -230,9 +230,7 @@ def _load_testfile(filename, package, module_relative, encoding): # get_data() opens files as 'rb', so one must do the equivalent # conversion as universal newlines would do. - # TODO: RUSTPYTHON; use _newline_convert once io.IncrementalNewlineDecoder is implemented - return file_contents.replace(os.linesep, '\n'), filename - # return _newline_convert(file_contents), filename + return _newline_convert(file_contents), filename with open(filename, encoding=encoding) as f: return f.read(), filename diff --git a/Lib/email/__init__.py b/Lib/email/__init__.py index fae872439e..9fa4778300 100644 --- a/Lib/email/__init__.py +++ b/Lib/email/__init__.py @@ -25,7 +25,6 @@ ] - # Some convenience routines. Don't import Parser and Message as side-effects # of importing email since those cascadingly import most of the rest of the # email package. diff --git a/Lib/email/_encoded_words.py b/Lib/email/_encoded_words.py index 5eaab36ed0..6795a606de 100644 --- a/Lib/email/_encoded_words.py +++ b/Lib/email/_encoded_words.py @@ -62,7 +62,7 @@ # regex based decoder. _q_byte_subber = functools.partial(re.compile(br'=([a-fA-F0-9]{2})').sub, - lambda m: bytes([int(m.group(1), 16)])) + lambda m: bytes.fromhex(m.group(1).decode())) def decode_q(encoded): encoded = encoded.replace(b'_', b' ') @@ -98,30 +98,42 @@ def len_q(bstring): # def decode_b(encoded): - defects = [] + # First try encoding with validate=True, fixing the padding if needed. + # This will succeed only if encoded includes no invalid characters. pad_err = len(encoded) % 4 - if pad_err: - defects.append(errors.InvalidBase64PaddingDefect()) - padded_encoded = encoded + b'==='[:4-pad_err] - else: - padded_encoded = encoded + missing_padding = b'==='[:4-pad_err] if pad_err else b'' try: - return base64.b64decode(padded_encoded, validate=True), defects + return ( + base64.b64decode(encoded + missing_padding, validate=True), + [errors.InvalidBase64PaddingDefect()] if pad_err else [], + ) except binascii.Error: - # Since we had correct padding, this must an invalid char error. - defects = [errors.InvalidBase64CharactersDefect()] + # Since we had correct padding, this is likely an invalid char error. + # # The non-alphabet characters are ignored as far as padding - # goes, but we don't know how many there are. So we'll just - # try various padding lengths until something works. - for i in 0, 1, 2, 3: + # goes, but we don't know how many there are. So try without adding + # padding to see if it works. + try: + return ( + base64.b64decode(encoded, validate=False), + [errors.InvalidBase64CharactersDefect()], + ) + except binascii.Error: + # Add as much padding as could possibly be necessary (extra padding + # is ignored). try: - return base64.b64decode(encoded+b'='*i, validate=False), defects + return ( + base64.b64decode(encoded + b'==', validate=False), + [errors.InvalidBase64CharactersDefect(), + errors.InvalidBase64PaddingDefect()], + ) except binascii.Error: - if i==0: - defects.append(errors.InvalidBase64PaddingDefect()) - else: - # This should never happen. - raise AssertionError("unexpected binascii.Error") + # This only happens when the encoded string's length is 1 more + # than a multiple of 4, which is invalid. + # + # bpo-27397: Just return the encoded string since there's no + # way to decode. + return encoded, [errors.InvalidBase64LengthDefect()] def encode_b(bstring): return base64.b64encode(bstring).decode('ascii') @@ -167,15 +179,15 @@ def decode(ew): # Turn the CTE decoded bytes into unicode. try: string = bstring.decode(charset) - except UnicodeError: + except UnicodeDecodeError: defects.append(errors.UndecodableBytesDefect("Encoded word " - "contains bytes not decodable using {} charset".format(charset))) + f"contains bytes not decodable using {charset!r} charset")) string = bstring.decode(charset, 'surrogateescape') - except LookupError: + except (LookupError, UnicodeEncodeError): string = bstring.decode('ascii', 'surrogateescape') if charset.lower() != 'unknown-8bit': - defects.append(errors.CharsetError("Unknown charset {} " - "in encoded word; decoded as unknown bytes".format(charset))) + defects.append(errors.CharsetError(f"Unknown charset {charset!r} " + f"in encoded word; decoded as unknown bytes")) return string, charset, lang, defects diff --git a/Lib/email/_header_value_parser.py b/Lib/email/_header_value_parser.py index 57d01fbcb0..ec2215a5e5 100644 --- a/Lib/email/_header_value_parser.py +++ b/Lib/email/_header_value_parser.py @@ -68,9 +68,9 @@ """ import re +import sys import urllib # For urllib.parse.unquote from string import hexdigits -from collections import OrderedDict from operator import itemgetter from email import _encoded_words as _ew from email import errors @@ -92,93 +92,23 @@ ASPECIALS = TSPECIALS | set("*'%") ATTRIBUTE_ENDS = ASPECIALS | WSP EXTENDED_ATTRIBUTE_ENDS = ATTRIBUTE_ENDS - set('%') +NLSET = {'\n', '\r'} +SPECIALSNL = SPECIALS | NLSET def quote_string(value): return '"'+str(value).replace('\\', '\\\\').replace('"', r'\"')+'"' -# -# Accumulator for header folding -# - -class _Folded: - - def __init__(self, maxlen, policy): - self.maxlen = maxlen - self.policy = policy - self.lastlen = 0 - self.stickyspace = None - self.firstline = True - self.done = [] - self.current = [] +# Match a RFC 2047 word, looks like =?utf-8?q?someword?= +rfc2047_matcher = re.compile(r''' + =\? # literal =? + [^?]* # charset + \? # literal ? + [qQbB] # literal 'q' or 'b', case insensitive + \? # literal ? + .*? # encoded word + \?= # literal ?= +''', re.VERBOSE | re.MULTILINE) - def newline(self): - self.done.extend(self.current) - self.done.append(self.policy.linesep) - self.current.clear() - self.lastlen = 0 - - def finalize(self): - if self.current: - self.newline() - - def __str__(self): - return ''.join(self.done) - - def append(self, stoken): - self.current.append(stoken) - - def append_if_fits(self, token, stoken=None): - if stoken is None: - stoken = str(token) - l = len(stoken) - if self.stickyspace is not None: - stickyspace_len = len(self.stickyspace) - if self.lastlen + stickyspace_len + l <= self.maxlen: - self.current.append(self.stickyspace) - self.lastlen += stickyspace_len - self.current.append(stoken) - self.lastlen += l - self.stickyspace = None - self.firstline = False - return True - if token.has_fws: - ws = token.pop_leading_fws() - if ws is not None: - self.stickyspace += str(ws) - stickyspace_len += len(ws) - token._fold(self) - return True - if stickyspace_len and l + 1 <= self.maxlen: - margin = self.maxlen - l - if 0 < margin < stickyspace_len: - trim = stickyspace_len - margin - self.current.append(self.stickyspace[:trim]) - self.stickyspace = self.stickyspace[trim:] - stickyspace_len = trim - self.newline() - self.current.append(self.stickyspace) - self.current.append(stoken) - self.lastlen = l + stickyspace_len - self.stickyspace = None - self.firstline = False - return True - if not self.firstline: - self.newline() - self.current.append(self.stickyspace) - self.current.append(stoken) - self.stickyspace = None - self.firstline = False - return True - if self.lastlen + l <= self.maxlen: - self.current.append(stoken) - self.lastlen += l - return True - if l < self.maxlen: - self.newline() - self.current.append(stoken) - self.lastlen = l - return True - return False # # TokenList and its subclasses @@ -187,6 +117,8 @@ def append_if_fits(self, token, stoken=None): class TokenList(list): token_type = None + syntactic_break = True + ew_combine_allowed = True def __init__(self, *args, **kw): super().__init__(*args, **kw) @@ -207,84 +139,13 @@ def value(self): def all_defects(self): return sum((x.all_defects for x in self), self.defects) - # - # Folding API - # - # parts(): - # - # return a list of objects that constitute the "higher level syntactic - # objects" specified by the RFC as the best places to fold a header line. - # The returned objects must include leading folding white space, even if - # this means mutating the underlying parse tree of the object. Each object - # is only responsible for returning *its* parts, and should not drill down - # to any lower level except as required to meet the leading folding white - # space constraint. - # - # _fold(folded): - # - # folded: the result accumulator. This is an instance of _Folded. - # (XXX: I haven't finished factoring this out yet, the folding code - # pretty much uses this as a state object.) When the folded.current - # contains as much text as will fit, the _fold method should call - # folded.newline. - # folded.lastlen: the current length of the test stored in folded.current. - # folded.maxlen: The maximum number of characters that may appear on a - # folded line. Differs from the policy setting in that "no limit" is - # represented by +inf, which means it can be used in the trivially - # logical fashion in comparisons. - # - # Currently no subclasses implement parts, and I think this will remain - # true. A subclass only needs to implement _fold when the generic version - # isn't sufficient. _fold will need to be implemented primarily when it is - # possible for encoded words to appear in the specialized token-list, since - # there is no generic algorithm that can know where exactly the encoded - # words are allowed. A _fold implementation is responsible for filling - # lines in the same general way that the top level _fold does. It may, and - # should, call the _fold method of sub-objects in a similar fashion to that - # of the top level _fold. - # - # XXX: I'm hoping it will be possible to factor the existing code further - # to reduce redundancy and make the logic clearer. - - @property - def parts(self): - klass = self.__class__ - this = [] - for token in self: - if token.startswith_fws(): - if this: - yield this[0] if len(this)==1 else klass(this) - this.clear() - end_ws = token.pop_trailing_ws() - this.append(token) - if end_ws: - yield klass(this) - this = [end_ws] - if this: - yield this[0] if len(this)==1 else klass(this) - def startswith_fws(self): return self[0].startswith_fws() - def pop_leading_fws(self): - if self[0].token_type == 'fws': - return self.pop(0) - return self[0].pop_leading_fws() - - def pop_trailing_ws(self): - if self[-1].token_type == 'cfws': - return self.pop(-1) - return self[-1].pop_trailing_ws() - @property - def has_fws(self): - for part in self: - if part.has_fws: - return True - return False - - def has_leading_comment(self): - return self[0].has_leading_comment() + def as_ew_allowed(self): + """True if all top level tokens of this part may be RFC2047 encoded.""" + return all(part.as_ew_allowed for part in self) @property def comments(self): @@ -294,71 +155,13 @@ def comments(self): return comments def fold(self, *, policy): - # max_line_length 0/None means no limit, ie: infinitely long. - maxlen = policy.max_line_length or float("+inf") - folded = _Folded(maxlen, policy) - self._fold(folded) - folded.finalize() - return str(folded) - - def as_encoded_word(self, charset): - # This works only for things returned by 'parts', which include - # the leading fws, if any, that should be used. - res = [] - ws = self.pop_leading_fws() - if ws: - res.append(ws) - trailer = self.pop(-1) if self[-1].token_type=='fws' else '' - res.append(_ew.encode(str(self), charset)) - res.append(trailer) - return ''.join(res) - - def cte_encode(self, charset, policy): - res = [] - for part in self: - res.append(part.cte_encode(charset, policy)) - return ''.join(res) - - def _fold(self, folded): - encoding = 'utf-8' if folded.policy.utf8 else 'ascii' - for part in self.parts: - tstr = str(part) - tlen = len(tstr) - try: - str(part).encode(encoding) - except UnicodeEncodeError: - if any(isinstance(x, errors.UndecodableBytesDefect) - for x in part.all_defects): - charset = 'unknown-8bit' - else: - # XXX: this should be a policy setting when utf8 is False. - charset = 'utf-8' - tstr = part.cte_encode(charset, folded.policy) - tlen = len(tstr) - if folded.append_if_fits(part, tstr): - continue - # Peel off the leading whitespace if any and make it sticky, to - # avoid infinite recursion. - ws = part.pop_leading_fws() - if ws is not None: - # Peel off the leading whitespace and make it sticky, to - # avoid infinite recursion. - folded.stickyspace = str(part.pop(0)) - if folded.append_if_fits(part): - continue - if part.has_fws: - part._fold(folded) - continue - # There are no fold points in this one; it is too long for a single - # line and can't be split...we just have to put it on its own line. - folded.append(tstr) - folded.newline() + return _refold_parse_tree(self, policy=policy) def pprint(self, indent=''): - print('\n'.join(self._pp(indent=''))) + print(self.ppstr(indent=indent)) def ppstr(self, indent=''): - return '\n'.join(self._pp(indent='')) + return '\n'.join(self._pp(indent=indent)) def _pp(self, indent=''): yield '{}{}/{}('.format( @@ -390,213 +193,35 @@ def comments(self): class UnstructuredTokenList(TokenList): - token_type = 'unstructured' - def _fold(self, folded): - last_ew = None - encoding = 'utf-8' if folded.policy.utf8 else 'ascii' - for part in self.parts: - tstr = str(part) - is_ew = False - try: - str(part).encode(encoding) - except UnicodeEncodeError: - if any(isinstance(x, errors.UndecodableBytesDefect) - for x in part.all_defects): - charset = 'unknown-8bit' - else: - charset = 'utf-8' - if last_ew is not None: - # We've already done an EW, combine this one with it - # if there's room. - chunk = get_unstructured( - ''.join(folded.current[last_ew:]+[tstr])).as_encoded_word(charset) - oldlastlen = sum(len(x) for x in folded.current[:last_ew]) - schunk = str(chunk) - lchunk = len(schunk) - if oldlastlen + lchunk <= folded.maxlen: - del folded.current[last_ew:] - folded.append(schunk) - folded.lastlen = oldlastlen + lchunk - continue - tstr = part.as_encoded_word(charset) - is_ew = True - if folded.append_if_fits(part, tstr): - if is_ew: - last_ew = len(folded.current) - 1 - continue - if is_ew or last_ew: - # It's too big to fit on the line, but since we've - # got encoded words we can use encoded word folding. - part._fold_as_ew(folded) - continue - # Peel off the leading whitespace if any and make it sticky, to - # avoid infinite recursion. - ws = part.pop_leading_fws() - if ws is not None: - folded.stickyspace = str(ws) - if folded.append_if_fits(part): - continue - if part.has_fws: - part._fold(folded) - continue - # It can't be split...we just have to put it on its own line. - folded.append(tstr) - folded.newline() - last_ew = None - - def cte_encode(self, charset, policy): - res = [] - last_ew = None - for part in self: - spart = str(part) - try: - spart.encode('us-ascii') - res.append(spart) - except UnicodeEncodeError: - if last_ew is None: - res.append(part.cte_encode(charset, policy)) - last_ew = len(res) - else: - tl = get_unstructured(''.join(res[last_ew:] + [spart])) - res.append(tl.as_encoded_word(charset)) - return ''.join(res) - class Phrase(TokenList): - token_type = 'phrase' - def _fold(self, folded): - # As with Unstructured, we can have pure ASCII with or without - # surrogateescape encoded bytes, or we could have unicode. But this - # case is more complicated, since we have to deal with the various - # sub-token types and how they can be composed in the face of - # unicode-that-needs-CTE-encoding, and the fact that if a token a - # comment that becomes a barrier across which we can't compose encoded - # words. - last_ew = None - encoding = 'utf-8' if folded.policy.utf8 else 'ascii' - for part in self.parts: - tstr = str(part) - tlen = len(tstr) - has_ew = False - try: - str(part).encode(encoding) - except UnicodeEncodeError: - if any(isinstance(x, errors.UndecodableBytesDefect) - for x in part.all_defects): - charset = 'unknown-8bit' - else: - charset = 'utf-8' - if last_ew is not None and not part.has_leading_comment(): - # We've already done an EW, let's see if we can combine - # this one with it. The last_ew logic ensures that all we - # have at this point is atoms, no comments or quoted - # strings. So we can treat the text between the last - # encoded word and the content of this token as - # unstructured text, and things will work correctly. But - # we have to strip off any trailing comment on this token - # first, and if it is a quoted string we have to pull out - # the content (we're encoding it, so it no longer needs to - # be quoted). - if part[-1].token_type == 'cfws' and part.comments: - remainder = part.pop(-1) - else: - remainder = '' - for i, token in enumerate(part): - if token.token_type == 'bare-quoted-string': - part[i] = UnstructuredTokenList(token[:]) - chunk = get_unstructured( - ''.join(folded.current[last_ew:]+[tstr])).as_encoded_word(charset) - schunk = str(chunk) - lchunk = len(schunk) - if last_ew + lchunk <= folded.maxlen: - del folded.current[last_ew:] - folded.append(schunk) - folded.lastlen = sum(len(x) for x in folded.current) - continue - tstr = part.as_encoded_word(charset) - tlen = len(tstr) - has_ew = True - if folded.append_if_fits(part, tstr): - if has_ew and not part.comments: - last_ew = len(folded.current) - 1 - elif part.comments or part.token_type == 'quoted-string': - # If a comment is involved we can't combine EWs. And if a - # quoted string is involved, it's not worth the effort to - # try to combine them. - last_ew = None - continue - part._fold(folded) - - def cte_encode(self, charset, policy): - res = [] - last_ew = None - is_ew = False - for part in self: - spart = str(part) - try: - spart.encode('us-ascii') - res.append(spart) - except UnicodeEncodeError: - is_ew = True - if last_ew is None: - if not part.comments: - last_ew = len(res) - res.append(part.cte_encode(charset, policy)) - elif not part.has_leading_comment(): - if part[-1].token_type == 'cfws' and part.comments: - remainder = part.pop(-1) - else: - remainder = '' - for i, token in enumerate(part): - if token.token_type == 'bare-quoted-string': - part[i] = UnstructuredTokenList(token[:]) - tl = get_unstructured(''.join(res[last_ew:] + [spart])) - res[last_ew:] = [tl.as_encoded_word(charset)] - if part.comments or (not is_ew and part.token_type == 'quoted-string'): - last_ew = None - return ''.join(res) - class Word(TokenList): - token_type = 'word' class CFWSList(WhiteSpaceTokenList): - token_type = 'cfws' - def has_leading_comment(self): - return bool(self.comments) - class Atom(TokenList): - token_type = 'atom' class Token(TokenList): - token_type = 'token' + encode_as_ew = False class EncodedWord(TokenList): - token_type = 'encoded-word' cte = None charset = None lang = None - @property - def encoded(self): - if self.cte is not None: - return self.cte - _ew.encode(str(self), self.charset) - - class QuotedString(TokenList): @@ -812,7 +437,10 @@ def route(self): def addr_spec(self): for x in self: if x.token_type == 'addr-spec': - return x.addr_spec + if x.local_part: + return x.addr_spec + else: + return quote_string(x.local_part) + x.addr_spec else: return '<>' @@ -867,6 +495,7 @@ def display_name(self): class Domain(TokenList): token_type = 'domain' + as_ew_allowed = False @property def domain(self): @@ -874,18 +503,23 @@ def domain(self): class DotAtom(TokenList): - token_type = 'dot-atom' class DotAtomText(TokenList): - token_type = 'dot-atom-text' + as_ew_allowed = True + + +class NoFoldLiteral(TokenList): + token_type = 'no-fold-literal' + as_ew_allowed = False class AddrSpec(TokenList): token_type = 'addr-spec' + as_ew_allowed = False @property def local_part(self): @@ -918,24 +552,30 @@ def addr_spec(self): class ObsLocalPart(TokenList): token_type = 'obs-local-part' + as_ew_allowed = False class DisplayName(Phrase): token_type = 'display-name' + ew_combine_allowed = False @property def display_name(self): res = TokenList(self) + if len(res) == 0: + return res.value if res[0].token_type == 'cfws': res.pop(0) else: - if res[0][0].token_type == 'cfws': + if (isinstance(res[0], TokenList) and + res[0][0].token_type == 'cfws'): res[0] = TokenList(res[0][1:]) if res[-1].token_type == 'cfws': res.pop() else: - if res[-1][-1].token_type == 'cfws': + if (isinstance(res[-1], TokenList) and + res[-1][-1].token_type == 'cfws'): res[-1] = TokenList(res[-1][:-1]) return res.value @@ -948,11 +588,15 @@ def value(self): for x in self: if x.token_type == 'quoted-string': quote = True - if quote: + if len(self) != 0 and quote: pre = post = '' - if self[0].token_type=='cfws' or self[0][0].token_type=='cfws': + if (self[0].token_type == 'cfws' or + isinstance(self[0], TokenList) and + self[0][0].token_type == 'cfws'): pre = ' ' - if self[-1].token_type=='cfws' or self[-1][-1].token_type=='cfws': + if (self[-1].token_type == 'cfws' or + isinstance(self[-1], TokenList) and + self[-1][-1].token_type == 'cfws'): post = ' ' return pre+quote_string(self.display_name)+post else: @@ -962,6 +606,7 @@ def value(self): class LocalPart(TokenList): token_type = 'local-part' + as_ew_allowed = False @property def value(self): @@ -997,6 +642,7 @@ def local_part(self): class DomainLiteral(TokenList): token_type = 'domain-literal' + as_ew_allowed = False @property def domain(self): @@ -1083,6 +729,7 @@ def stripped_value(self): class MimeParameters(TokenList): token_type = 'mime-parameters' + syntactic_break = False @property def params(self): @@ -1091,7 +738,7 @@ def params(self): # to assume the RFC 2231 pieces can come in any order. However, we # output them in the order that we first see a given name, which gives # us a stable __str__. - params = OrderedDict() + params = {} # Using order preserving dict from Python 3.7+ for token in self: if not token.token_type.endswith('parameter'): continue @@ -1142,7 +789,7 @@ def params(self): else: try: value = value.decode(charset, 'surrogateescape') - except LookupError: + except (LookupError, UnicodeEncodeError): # XXX: there should really be a custom defect for # unknown character set to make it easy to find, # because otherwise unknown charset is a silent @@ -1167,6 +814,10 @@ def __str__(self): class ParameterizedHeaderValue(TokenList): + # Set this false so that the value doesn't wind up on a new line even + # if it and the parameters would fit there but not on the first line. + syntactic_break = False + @property def params(self): for token in reversed(self): @@ -1174,58 +825,50 @@ def params(self): return token.params return {} - @property - def parts(self): - if self and self[-1].token_type == 'mime-parameters': - # We don't want to start a new line if all of the params don't fit - # after the value, so unwrap the parameter list. - return TokenList(self[:-1] + self[-1]) - return TokenList(self).parts - class ContentType(ParameterizedHeaderValue): - token_type = 'content-type' + as_ew_allowed = False maintype = 'text' subtype = 'plain' class ContentDisposition(ParameterizedHeaderValue): - token_type = 'content-disposition' + as_ew_allowed = False content_disposition = None class ContentTransferEncoding(TokenList): - token_type = 'content-transfer-encoding' + as_ew_allowed = False cte = '7bit' class HeaderLabel(TokenList): - token_type = 'header-label' + as_ew_allowed = False -class Header(TokenList): +class MsgID(TokenList): + token_type = 'msg-id' + as_ew_allowed = False - token_type = 'header' + def fold(self, policy): + # message-id tokens may not be folded. + return str(self) + policy.linesep + + +class MessageID(MsgID): + token_type = 'message-id' - def _fold(self, folded): - folded.append(str(self.pop(0))) - folded.lastlen = len(folded.current[0]) - # The first line of the header is different from all others: we don't - # want to start a new object on a new line if it has any fold points in - # it that would allow part of it to be on the first header line. - # Further, if the first fold point would fit on the new line, we want - # to do that, but if it doesn't we want to put it on the first line. - # Folded supports this via the stickyspace attribute. If this - # attribute is not None, it does the special handling. - folded.stickyspace = str(self.pop(0)) if self[0].token_type == 'cfws' else '' - rest = self.pop(0) - if self: - raise ValueError("Malformed Header token list") - rest._fold(folded) + +class InvalidMessageID(MessageID): + token_type = 'invalid-message-id' + + +class Header(TokenList): + token_type = 'header' # @@ -1234,6 +877,10 @@ def _fold(self, folded): class Terminal(str): + as_ew_allowed = True + ew_combine_allowed = True + syntactic_break = True + def __new__(cls, value, token_type): self = super().__new__(cls, value) self.token_type = token_type @@ -1243,6 +890,9 @@ def __new__(cls, value, token_type): def __repr__(self): return "{}({})".format(self.__class__.__name__, super().__repr__()) + def pprint(self): + print(self.__class__.__name__ + '/' + self.token_type) + @property def all_defects(self): return list(self.defects) @@ -1256,29 +906,14 @@ def _pp(self, indent=''): '' if not self.defects else ' {}'.format(self.defects), )] - def cte_encode(self, charset, policy): - value = str(self) - try: - value.encode('us-ascii') - return value - except UnicodeEncodeError: - return _ew.encode(value, charset) - def pop_trailing_ws(self): # This terminates the recursion. return None - def pop_leading_fws(self): - # This terminates the recursion. - return None - @property def comments(self): return [] - def has_leading_comment(self): - return False - def __getnewargs__(self): return(str(self), self.token_type) @@ -1292,8 +927,6 @@ def value(self): def startswith_fws(self): return True - has_fws = True - class ValueTerminal(Terminal): @@ -1304,11 +937,6 @@ def value(self): def startswith_fws(self): return False - has_fws = False - - def as_encoded_word(self, charset): - return _ew.encode(str(self), charset) - class EWWhiteSpaceTerminal(WhiteSpaceTerminal): @@ -1316,14 +944,12 @@ class EWWhiteSpaceTerminal(WhiteSpaceTerminal): def value(self): return '' - @property - def encoded(self): - return self[:] - def __str__(self): return '' - has_fws = True + +class _InvalidEwError(errors.HeaderParseError): + """Invalid encoded word found while parsing headers.""" # XXX these need to become classes and used as instances so @@ -1331,6 +957,8 @@ def __str__(self): # up other parse trees. Maybe should have tests for that, too. DOT = ValueTerminal('.', 'dot') ListSeparator = ValueTerminal(',', 'list-separator') +ListSeparator.as_ew_allowed = False +ListSeparator.syntactic_break = False RouteComponentMarker = ValueTerminal('@', 'route-component-marker') # @@ -1356,15 +984,14 @@ def __str__(self): _wsp_splitter = re.compile(r'([{}]+)'.format(''.join(WSP))).split _non_atom_end_matcher = re.compile(r"[^{}]+".format( - ''.join(ATOM_ENDS).replace('\\','\\\\').replace(']',r'\]'))).match + re.escape(''.join(ATOM_ENDS)))).match _non_printable_finder = re.compile(r"[\x00-\x20\x7F]").findall _non_token_end_matcher = re.compile(r"[^{}]+".format( - ''.join(TOKEN_ENDS).replace('\\','\\\\').replace(']',r'\]'))).match + re.escape(''.join(TOKEN_ENDS)))).match _non_attribute_end_matcher = re.compile(r"[^{}]+".format( - ''.join(ATTRIBUTE_ENDS).replace('\\','\\\\').replace(']',r'\]'))).match + re.escape(''.join(ATTRIBUTE_ENDS)))).match _non_extended_attribute_end_matcher = re.compile(r"[^{}]+".format( - ''.join(EXTENDED_ATTRIBUTE_ENDS).replace( - '\\','\\\\').replace(']',r'\]'))).match + re.escape(''.join(EXTENDED_ATTRIBUTE_ENDS)))).match def _validate_xtext(xtext): """If input token contains ASCII non-printables, register a defect.""" @@ -1431,7 +1058,10 @@ def get_encoded_word(value): raise errors.HeaderParseError( "expected encoded word but found {}".format(value)) remstr = ''.join(remainder) - if len(remstr) > 1 and remstr[0] in hexdigits and remstr[1] in hexdigits: + if (len(remstr) > 1 and + remstr[0] in hexdigits and + remstr[1] in hexdigits and + tok.count('?') < 2): # The ? after the CTE was followed by an encoded word escape (=XX). rest, *remainder = remstr.split('?=', 1) tok = tok + '?=' + rest @@ -1442,8 +1072,8 @@ def get_encoded_word(value): value = ''.join(remainder) try: text, charset, lang, defects = _ew.decode('=?' + tok + '?=') - except ValueError: - raise errors.HeaderParseError( + except (ValueError, KeyError): + raise _InvalidEwError( "encoded word format invalid: '{}'".format(ew.cte)) ew.charset = charset ew.lang = lang @@ -1458,6 +1088,10 @@ def get_encoded_word(value): _validate_xtext(vtext) ew.append(vtext) text = ''.join(remainder) + # Encoded words should be followed by a WS + if value and value[0] not in WSP: + ew.defects.append(errors.InvalidHeaderDefect( + "missing trailing whitespace after encoded-word")) return ew, value def get_unstructured(value): @@ -1489,9 +1123,12 @@ def get_unstructured(value): token, value = get_fws(value) unstructured.append(token) continue + valid_ew = True if value.startswith('=?'): try: token, value = get_encoded_word(value) + except _InvalidEwError: + valid_ew = False except errors.HeaderParseError: # XXX: Need to figure out how to register defects when # appropriate here. @@ -1510,6 +1147,14 @@ def get_unstructured(value): unstructured.append(token) continue tok, *remainder = _wsp_splitter(value, 1) + # Split in the middle of an atom if there is a rfc2047 encoded word + # which does not have WSP on both sides. The defect will be registered + # the next time through the loop. + # This needs to only be performed when the encoded word is valid; + # otherwise, performing it on an invalid encoded word can cause + # the parser to go in an infinite loop. + if valid_ew and rfc2047_matcher.search(tok): + tok, *remainder = value.partition('=?') vtext = ValueTerminal(tok, 'vtext') _validate_xtext(vtext) unstructured.append(vtext) @@ -1571,21 +1216,33 @@ def get_bare_quoted_string(value): value is the text between the quote marks, with whitespace preserved and quoted pairs decoded. """ - if value[0] != '"': + if not value or value[0] != '"': raise errors.HeaderParseError( "expected '\"' but found '{}'".format(value)) bare_quoted_string = BareQuotedString() value = value[1:] + if value and value[0] == '"': + token, value = get_qcontent(value) + bare_quoted_string.append(token) while value and value[0] != '"': if value[0] in WSP: token, value = get_fws(value) elif value[:2] == '=?': + valid_ew = False try: token, value = get_encoded_word(value) bare_quoted_string.defects.append(errors.InvalidHeaderDefect( "encoded word inside quoted string")) + valid_ew = True except errors.HeaderParseError: token, value = get_qcontent(value) + # Collapse the whitespace between two encoded words that occur in a + # bare-quoted-string. + if valid_ew and len(bare_quoted_string) > 1: + if (bare_quoted_string[-1].token_type == 'fws' and + bare_quoted_string[-2].token_type == 'encoded-word'): + bare_quoted_string[-1] = EWWhiteSpaceTerminal( + bare_quoted_string[-1], 'fws') else: token, value = get_qcontent(value) bare_quoted_string.append(token) @@ -1742,6 +1399,9 @@ def get_word(value): leader, value = get_cfws(value) else: leader = None + if not value: + raise errors.HeaderParseError( + "Expected 'atom' or 'quoted-string' but found nothing.") if value[0]=='"': token, value = get_quoted_string(value) elif value[0] in SPECIALS: @@ -1797,7 +1457,7 @@ def get_local_part(value): """ local_part = LocalPart() leader = None - if value[0] in CFWS_LEADER: + if value and value[0] in CFWS_LEADER: leader, value = get_cfws(value) if not value: raise errors.HeaderParseError( @@ -1863,13 +1523,18 @@ def get_obs_local_part(value): raise token, value = get_cfws(value) obs_local_part.append(token) + if not obs_local_part: + raise errors.HeaderParseError( + "expected obs-local-part but found '{}'".format(value)) if (obs_local_part[0].token_type == 'dot' or obs_local_part[0].token_type=='cfws' and + len(obs_local_part) > 1 and obs_local_part[1].token_type=='dot'): obs_local_part.defects.append(errors.InvalidHeaderDefect( "Invalid leading '.' in local part")) if (obs_local_part[-1].token_type == 'dot' or obs_local_part[-1].token_type=='cfws' and + len(obs_local_part) > 1 and obs_local_part[-2].token_type=='dot'): obs_local_part.defects.append(errors.InvalidHeaderDefect( "Invalid trailing '.' in local part")) @@ -1951,7 +1616,7 @@ def get_domain(value): """ domain = Domain() leader = None - if value[0] in CFWS_LEADER: + if value and value[0] in CFWS_LEADER: leader, value = get_cfws(value) if not value: raise errors.HeaderParseError( @@ -1966,6 +1631,8 @@ def get_domain(value): token, value = get_dot_atom(value) except errors.HeaderParseError: token, value = get_atom(value) + if value and value[0] == '@': + raise errors.HeaderParseError('Invalid Domain') if leader is not None: token[:0] = [leader] domain.append(token) @@ -1989,7 +1656,7 @@ def get_addr_spec(value): addr_spec.append(token) if not value or value[0] != '@': addr_spec.defects.append(errors.InvalidHeaderDefect( - "add-spec local part with no domain")) + "addr-spec local part with no domain")) return addr_spec, value addr_spec.append(ValueTerminal('@', 'address-at-symbol')) token, value = get_domain(value[1:]) @@ -2025,6 +1692,8 @@ def get_obs_route(value): if value[0] in CFWS_LEADER: token, value = get_cfws(value) obs_route.append(token) + if not value: + break if value[0] == '@': obs_route.append(RouteComponentMarker) token, value = get_domain(value[1:]) @@ -2043,7 +1712,7 @@ def get_angle_addr(value): """ angle_addr = AngleAddr() - if value[0] in CFWS_LEADER: + if value and value[0] in CFWS_LEADER: token, value = get_cfws(value) angle_addr.append(token) if not value or value[0] != '<': @@ -2053,7 +1722,7 @@ def get_angle_addr(value): value = value[1:] # Although it is not legal per RFC5322, SMTP uses '<>' in certain # circumstances. - if value[0] == '>': + if value and value[0] == '>': angle_addr.append(ValueTerminal('>', 'angle-addr-end')) angle_addr.defects.append(errors.InvalidHeaderDefect( "null addr-spec in angle-addr")) @@ -2105,6 +1774,9 @@ def get_name_addr(value): name_addr = NameAddr() # Both the optional display name and the angle-addr can start with cfws. leader = None + if not value: + raise errors.HeaderParseError( + "expected name-addr but found '{}'".format(value)) if value[0] in CFWS_LEADER: leader, value = get_cfws(value) if not value: @@ -2119,7 +1791,10 @@ def get_name_addr(value): raise errors.HeaderParseError( "expected name-addr but found '{}'".format(token)) if leader is not None: - token[0][:0] = [leader] + if isinstance(token[0], TokenList): + token[0][:0] = [leader] + else: + token[:0] = [leader] leader = None name_addr.append(token) token, value = get_angle_addr(value) @@ -2281,7 +1956,7 @@ def get_group(value): if not value: group.defects.append(errors.InvalidHeaderDefect( "end of header in group")) - if value[0] != ';': + elif value[0] != ';': raise errors.HeaderParseError( "expected ';' at end of group but found {}".format(value)) group.append(ValueTerminal(';', 'group-terminator')) @@ -2335,7 +2010,7 @@ def get_address_list(value): try: token, value = get_address(value) address_list.append(token) - except errors.HeaderParseError as err: + except errors.HeaderParseError: leader = None if value[0] in CFWS_LEADER: leader, value = get_cfws(value) @@ -2370,10 +2045,122 @@ def get_address_list(value): address_list.defects.append(errors.InvalidHeaderDefect( "invalid address in address-list")) if value: # Must be a , at this point. - address_list.append(ValueTerminal(',', 'list-separator')) + address_list.append(ListSeparator) value = value[1:] return address_list, value + +def get_no_fold_literal(value): + """ no-fold-literal = "[" *dtext "]" + """ + no_fold_literal = NoFoldLiteral() + if not value: + raise errors.HeaderParseError( + "expected no-fold-literal but found '{}'".format(value)) + if value[0] != '[': + raise errors.HeaderParseError( + "expected '[' at the start of no-fold-literal " + "but found '{}'".format(value)) + no_fold_literal.append(ValueTerminal('[', 'no-fold-literal-start')) + value = value[1:] + token, value = get_dtext(value) + no_fold_literal.append(token) + if not value or value[0] != ']': + raise errors.HeaderParseError( + "expected ']' at the end of no-fold-literal " + "but found '{}'".format(value)) + no_fold_literal.append(ValueTerminal(']', 'no-fold-literal-end')) + return no_fold_literal, value[1:] + +def get_msg_id(value): + """msg-id = [CFWS] "<" id-left '@' id-right ">" [CFWS] + id-left = dot-atom-text / obs-id-left + id-right = dot-atom-text / no-fold-literal / obs-id-right + no-fold-literal = "[" *dtext "]" + """ + msg_id = MsgID() + if value and value[0] in CFWS_LEADER: + token, value = get_cfws(value) + msg_id.append(token) + if not value or value[0] != '<': + raise errors.HeaderParseError( + "expected msg-id but found '{}'".format(value)) + msg_id.append(ValueTerminal('<', 'msg-id-start')) + value = value[1:] + # Parse id-left. + try: + token, value = get_dot_atom_text(value) + except errors.HeaderParseError: + try: + # obs-id-left is same as local-part of add-spec. + token, value = get_obs_local_part(value) + msg_id.defects.append(errors.ObsoleteHeaderDefect( + "obsolete id-left in msg-id")) + except errors.HeaderParseError: + raise errors.HeaderParseError( + "expected dot-atom-text or obs-id-left" + " but found '{}'".format(value)) + msg_id.append(token) + if not value or value[0] != '@': + msg_id.defects.append(errors.InvalidHeaderDefect( + "msg-id with no id-right")) + # Even though there is no id-right, if the local part + # ends with `>` let's just parse it too and return + # along with the defect. + if value and value[0] == '>': + msg_id.append(ValueTerminal('>', 'msg-id-end')) + value = value[1:] + return msg_id, value + msg_id.append(ValueTerminal('@', 'address-at-symbol')) + value = value[1:] + # Parse id-right. + try: + token, value = get_dot_atom_text(value) + except errors.HeaderParseError: + try: + token, value = get_no_fold_literal(value) + except errors.HeaderParseError: + try: + token, value = get_domain(value) + msg_id.defects.append(errors.ObsoleteHeaderDefect( + "obsolete id-right in msg-id")) + except errors.HeaderParseError: + raise errors.HeaderParseError( + "expected dot-atom-text, no-fold-literal or obs-id-right" + " but found '{}'".format(value)) + msg_id.append(token) + if value and value[0] == '>': + value = value[1:] + else: + msg_id.defects.append(errors.InvalidHeaderDefect( + "missing trailing '>' on msg-id")) + msg_id.append(ValueTerminal('>', 'msg-id-end')) + if value and value[0] in CFWS_LEADER: + token, value = get_cfws(value) + msg_id.append(token) + return msg_id, value + + +def parse_message_id(value): + """message-id = "Message-ID:" msg-id CRLF + """ + message_id = MessageID() + try: + token, value = get_msg_id(value) + message_id.append(token) + except errors.HeaderParseError as ex: + token = get_unstructured(value) + message_id = InvalidMessageID(token) + message_id.defects.append( + errors.InvalidHeaderDefect("Invalid msg-id: {!r}".format(ex))) + else: + # Value after parsing a valid msg_id should be None. + if value: + message_id.defects.append(errors.InvalidHeaderDefect( + "Unexpected {!r}".format(value))) + + return message_id + # # XXX: As I begin to add additional header parsers, I'm realizing we probably # have two level of parser routines: the get_XXX methods that get a token in @@ -2615,8 +2402,8 @@ def get_section(value): digits += value[0] value = value[1:] if digits[0] == '0' and digits != '0': - section.defects.append(errors.InvalidHeaderError("section number" - "has an invalid leading 0")) + section.defects.append(errors.InvalidHeaderDefect( + "section number has an invalid leading 0")) section.number = int(digits) section.append(ValueTerminal(digits, 'digits')) return section, value @@ -2679,7 +2466,6 @@ def get_parameter(value): raise errors.HeaderParseError("Parameter not followed by '='") param.append(ValueTerminal('=', 'parameter-separator')) value = value[1:] - leader = None if value and value[0] in CFWS_LEADER: token, value = get_cfws(value) param.append(token) @@ -2754,7 +2540,7 @@ def get_parameter(value): if value[0] != "'": raise errors.HeaderParseError("Expected RFC2231 char/lang encoding " "delimiter, but found {!r}".format(value)) - appendto.append(ValueTerminal("'", 'RFC2231 delimiter')) + appendto.append(ValueTerminal("'", 'RFC2231-delimiter')) value = value[1:] if value and value[0] != "'": token, value = get_attrtext(value) @@ -2763,7 +2549,7 @@ def get_parameter(value): if not value or value[0] != "'": raise errors.HeaderParseError("Expected RFC2231 char/lang encoding " "delimiter, but found {}".format(value)) - appendto.append(ValueTerminal("'", 'RFC2231 delimiter')) + appendto.append(ValueTerminal("'", 'RFC2231-delimiter')) value = value[1:] if remainder is not None: # Treat the rest of value as bare quoted string content. @@ -2771,6 +2557,9 @@ def get_parameter(value): while value: if value[0] in WSP: token, value = get_fws(value) + elif value[0] == '"': + token = ValueTerminal('"', 'DQUOTE') + value = value[1:] else: token, value = get_qcontent(value) v.append(token) @@ -2791,7 +2580,7 @@ def parse_mime_parameters(value): the formal RFC grammar, but it is more convenient for us for the set of parameters to be treated as its own TokenList. - This is 'parse' routine because it consumes the reminaing value, but it + This is 'parse' routine because it consumes the remaining value, but it would never be called to parse a full header. Instead it is called to parse everything after the non-parameter value of a specific MIME header. @@ -2801,7 +2590,7 @@ def parse_mime_parameters(value): try: token, value = get_parameter(value) mime_parameters.append(token) - except errors.HeaderParseError as err: + except errors.HeaderParseError: leader = None if value[0] in CFWS_LEADER: leader, value = get_cfws(value) @@ -2859,7 +2648,6 @@ def parse_content_type_header(value): don't do that. """ ctype = ContentType() - recover = False if not value: ctype.defects.append(errors.HeaderMissingRequiredValue( "Missing content type specification")) @@ -2968,3 +2756,323 @@ def parse_content_transfer_encoding_header(value): token, value = get_phrase(value) cte_header.append(token) return cte_header + + +# +# Header folding +# +# Header folding is complex, with lots of rules and corner cases. The +# following code does its best to obey the rules and handle the corner +# cases, but you can be sure there are few bugs:) +# +# This folder generally canonicalizes as it goes, preferring the stringified +# version of each token. The tokens contain information that supports the +# folder, including which tokens can be encoded in which ways. +# +# Folded text is accumulated in a simple list of strings ('lines'), each +# one of which should be less than policy.max_line_length ('maxlen'). +# + +def _steal_trailing_WSP_if_exists(lines): + wsp = '' + if lines and lines[-1] and lines[-1][-1] in WSP: + wsp = lines[-1][-1] + lines[-1] = lines[-1][:-1] + return wsp + +def _refold_parse_tree(parse_tree, *, policy): + """Return string of contents of parse_tree folded according to RFC rules. + + """ + # max_line_length 0/None means no limit, ie: infinitely long. + maxlen = policy.max_line_length or sys.maxsize + encoding = 'utf-8' if policy.utf8 else 'us-ascii' + lines = [''] # Folded lines to be output + leading_whitespace = '' # When we have whitespace between two encoded + # words, we may need to encode the whitespace + # at the beginning of the second word. + last_ew = None # Points to the last encoded character if there's an ew on + # the line + last_charset = None + wrap_as_ew_blocked = 0 + want_encoding = False # This is set to True if we need to encode this part + end_ew_not_allowed = Terminal('', 'wrap_as_ew_blocked') + parts = list(parse_tree) + while parts: + part = parts.pop(0) + if part is end_ew_not_allowed: + wrap_as_ew_blocked -= 1 + continue + tstr = str(part) + if not want_encoding: + if part.token_type == 'ptext': + # Encode if tstr contains special characters. + want_encoding = not SPECIALSNL.isdisjoint(tstr) + else: + # Encode if tstr contains newlines. + want_encoding = not NLSET.isdisjoint(tstr) + try: + tstr.encode(encoding) + charset = encoding + except UnicodeEncodeError: + if any(isinstance(x, errors.UndecodableBytesDefect) + for x in part.all_defects): + charset = 'unknown-8bit' + else: + # If policy.utf8 is false this should really be taken from a + # 'charset' property on the policy. + charset = 'utf-8' + want_encoding = True + + if part.token_type == 'mime-parameters': + # Mime parameter folding (using RFC2231) is extra special. + _fold_mime_parameters(part, lines, maxlen, encoding) + continue + + if want_encoding and not wrap_as_ew_blocked: + if not part.as_ew_allowed: + want_encoding = False + last_ew = None + if part.syntactic_break: + encoded_part = part.fold(policy=policy)[:-len(policy.linesep)] + if policy.linesep not in encoded_part: + # It fits on a single line + if len(encoded_part) > maxlen - len(lines[-1]): + # But not on this one, so start a new one. + newline = _steal_trailing_WSP_if_exists(lines) + # XXX what if encoded_part has no leading FWS? + lines.append(newline) + lines[-1] += encoded_part + continue + # Either this is not a major syntactic break, so we don't + # want it on a line by itself even if it fits, or it + # doesn't fit on a line by itself. Either way, fall through + # to unpacking the subparts and wrapping them. + if not hasattr(part, 'encode'): + # It's not a Terminal, do each piece individually. + parts = list(part) + parts + want_encoding = False + continue + elif part.as_ew_allowed: + # It's a terminal, wrap it as an encoded word, possibly + # combining it with previously encoded words if allowed. + if (last_ew is not None and + charset != last_charset and + (last_charset == 'unknown-8bit' or + last_charset == 'utf-8' and charset != 'us-ascii')): + last_ew = None + last_ew = _fold_as_ew(tstr, lines, maxlen, last_ew, + part.ew_combine_allowed, charset, leading_whitespace) + # This whitespace has been added to the lines in _fold_as_ew() + # so clear it now. + leading_whitespace = '' + last_charset = charset + want_encoding = False + continue + else: + # It's a terminal which should be kept non-encoded + # (e.g. a ListSeparator). + last_ew = None + want_encoding = False + # fall through + + if len(tstr) <= maxlen - len(lines[-1]): + lines[-1] += tstr + continue + + # This part is too long to fit. The RFC wants us to break at + # "major syntactic breaks", so unless we don't consider this + # to be one, check if it will fit on the next line by itself. + leading_whitespace = '' + if (part.syntactic_break and + len(tstr) + 1 <= maxlen): + newline = _steal_trailing_WSP_if_exists(lines) + if newline or part.startswith_fws(): + # We're going to fold the data onto a new line here. Due to + # the way encoded strings handle continuation lines, we need to + # be prepared to encode any whitespace if the next line turns + # out to start with an encoded word. + lines.append(newline + tstr) + + whitespace_accumulator = [] + for char in lines[-1]: + if char not in WSP: + break + whitespace_accumulator.append(char) + leading_whitespace = ''.join(whitespace_accumulator) + last_ew = None + continue + if not hasattr(part, 'encode'): + # It's not a terminal, try folding the subparts. + newparts = list(part) + if not part.as_ew_allowed: + wrap_as_ew_blocked += 1 + newparts.append(end_ew_not_allowed) + parts = newparts + parts + continue + if part.as_ew_allowed and not wrap_as_ew_blocked: + # It doesn't need CTE encoding, but encode it anyway so we can + # wrap it. + parts.insert(0, part) + want_encoding = True + continue + # We can't figure out how to wrap, it, so give up. + newline = _steal_trailing_WSP_if_exists(lines) + if newline or part.startswith_fws(): + lines.append(newline + tstr) + else: + # We can't fold it onto the next line either... + lines[-1] += tstr + + return policy.linesep.join(lines) + policy.linesep + +def _fold_as_ew(to_encode, lines, maxlen, last_ew, ew_combine_allowed, charset, leading_whitespace): + """Fold string to_encode into lines as encoded word, combining if allowed. + Return the new value for last_ew, or None if ew_combine_allowed is False. + + If there is already an encoded word in the last line of lines (indicated by + a non-None value for last_ew) and ew_combine_allowed is true, decode the + existing ew, combine it with to_encode, and re-encode. Otherwise, encode + to_encode. In either case, split to_encode as necessary so that the + encoded segments fit within maxlen. + + """ + if last_ew is not None and ew_combine_allowed: + to_encode = str( + get_unstructured(lines[-1][last_ew:] + to_encode)) + lines[-1] = lines[-1][:last_ew] + elif to_encode[0] in WSP: + # We're joining this to non-encoded text, so don't encode + # the leading blank. + leading_wsp = to_encode[0] + to_encode = to_encode[1:] + if (len(lines[-1]) == maxlen): + lines.append(_steal_trailing_WSP_if_exists(lines)) + lines[-1] += leading_wsp + + trailing_wsp = '' + if to_encode[-1] in WSP: + # Likewise for the trailing space. + trailing_wsp = to_encode[-1] + to_encode = to_encode[:-1] + new_last_ew = len(lines[-1]) if last_ew is None else last_ew + + encode_as = 'utf-8' if charset == 'us-ascii' else charset + + # The RFC2047 chrome takes up 7 characters plus the length + # of the charset name. + chrome_len = len(encode_as) + 7 + + if (chrome_len + 1) >= maxlen: + raise errors.HeaderParseError( + "max_line_length is too small to fit an encoded word") + + while to_encode: + remaining_space = maxlen - len(lines[-1]) + text_space = remaining_space - chrome_len - len(leading_whitespace) + if text_space <= 0: + lines.append(' ') + continue + + # If we are at the start of a continuation line, prepend whitespace + # (we only want to do this when the line starts with an encoded word + # but if we're folding in this helper function, then we know that we + # are going to be writing out an encoded word.) + if len(lines) > 1 and len(lines[-1]) == 1 and leading_whitespace: + encoded_word = _ew.encode(leading_whitespace, charset=encode_as) + lines[-1] += encoded_word + leading_whitespace = '' + + to_encode_word = to_encode[:text_space] + encoded_word = _ew.encode(to_encode_word, charset=encode_as) + excess = len(encoded_word) - remaining_space + while excess > 0: + # Since the chunk to encode is guaranteed to fit into less than 100 characters, + # shrinking it by one at a time shouldn't take long. + to_encode_word = to_encode_word[:-1] + encoded_word = _ew.encode(to_encode_word, charset=encode_as) + excess = len(encoded_word) - remaining_space + lines[-1] += encoded_word + to_encode = to_encode[len(to_encode_word):] + leading_whitespace = '' + + if to_encode: + lines.append(' ') + new_last_ew = len(lines[-1]) + lines[-1] += trailing_wsp + return new_last_ew if ew_combine_allowed else None + +def _fold_mime_parameters(part, lines, maxlen, encoding): + """Fold TokenList 'part' into the 'lines' list as mime parameters. + + Using the decoded list of parameters and values, format them according to + the RFC rules, including using RFC2231 encoding if the value cannot be + expressed in 'encoding' and/or the parameter+value is too long to fit + within 'maxlen'. + + """ + # Special case for RFC2231 encoding: start from decoded values and use + # RFC2231 encoding iff needed. + # + # Note that the 1 and 2s being added to the length calculations are + # accounting for the possibly-needed spaces and semicolons we'll be adding. + # + for name, value in part.params: + # XXX What if this ';' puts us over maxlen the first time through the + # loop? We should split the header value onto a newline in that case, + # but to do that we need to recognize the need earlier or reparse the + # header, so I'm going to ignore that bug for now. It'll only put us + # one character over. + if not lines[-1].rstrip().endswith(';'): + lines[-1] += ';' + charset = encoding + error_handler = 'strict' + try: + value.encode(encoding) + encoding_required = False + except UnicodeEncodeError: + encoding_required = True + if utils._has_surrogates(value): + charset = 'unknown-8bit' + error_handler = 'surrogateescape' + else: + charset = 'utf-8' + if encoding_required: + encoded_value = urllib.parse.quote( + value, safe='', errors=error_handler) + tstr = "{}*={}''{}".format(name, charset, encoded_value) + else: + tstr = '{}={}'.format(name, quote_string(value)) + if len(lines[-1]) + len(tstr) + 1 < maxlen: + lines[-1] = lines[-1] + ' ' + tstr + continue + elif len(tstr) + 2 <= maxlen: + lines.append(' ' + tstr) + continue + # We need multiple sections. We are allowed to mix encoded and + # non-encoded sections, but we aren't going to. We'll encode them all. + section = 0 + extra_chrome = charset + "''" + while value: + chrome_len = len(name) + len(str(section)) + 3 + len(extra_chrome) + if maxlen <= chrome_len + 3: + # We need room for the leading blank, the trailing semicolon, + # and at least one character of the value. If we don't + # have that, we'd be stuck, so in that case fall back to + # the RFC standard width. + maxlen = 78 + splitpoint = maxchars = maxlen - chrome_len - 2 + while True: + partial = value[:splitpoint] + encoded_value = urllib.parse.quote( + partial, safe='', errors=error_handler) + if len(encoded_value) <= maxchars: + break + splitpoint -= 1 + lines.append(" {}*{}*={}{}".format( + name, section, extra_chrome, encoded_value)) + extra_chrome = '' + section += 1 + value = value[splitpoint:] + if value: + lines[-1] += ';' diff --git a/Lib/email/_parseaddr.py b/Lib/email/_parseaddr.py index cdfa3729ad..0f1bf8e425 100644 --- a/Lib/email/_parseaddr.py +++ b/Lib/email/_parseaddr.py @@ -13,7 +13,7 @@ 'quote', ] -import time, calendar +import time SPACE = ' ' EMPTYSTRING = '' @@ -65,8 +65,10 @@ def _parsedate_tz(data): """ if not data: - return + return None data = data.split() + if not data: # This happens for whitespace-only input. + return None # The FWS after the comma after the day-of-week is optional, so search and # adjust for this. if data[0].endswith(',') or data[0].lower() in _daynames: @@ -93,6 +95,8 @@ def _parsedate_tz(data): return None data = data[:5] [dd, mm, yy, tm, tz] = data + if not (dd and mm and yy): + return None mm = mm.lower() if mm not in _monthnames: dd, mm = mm, dd.lower() @@ -108,6 +112,8 @@ def _parsedate_tz(data): yy, tm = tm, yy if yy[-1] == ',': yy = yy[:-1] + if not yy: + return None if not yy[0].isdigit(): yy, tz = tz, yy if tm[-1] == ',': @@ -126,6 +132,8 @@ def _parsedate_tz(data): tss = 0 elif len(tm) == 3: [thh, tmm, tss] = tm + else: + return None else: return None try: @@ -186,6 +194,9 @@ def mktime_tz(data): # No zone info, so localtime is better assumption than GMT return time.mktime(data[:8] + (-1,)) else: + # Delay the import, since mktime_tz is rarely used + import calendar + t = calendar.timegm(data) return t - data[9] @@ -379,7 +390,12 @@ def getaddrspec(self): aslist.append('@') self.pos += 1 self.gotonext() - return EMPTYSTRING.join(aslist) + self.getdomain() + domain = self.getdomain() + if not domain: + # Invalid domain, return an empty address instead of returning a + # local part to denote failed parsing. + return EMPTYSTRING + return EMPTYSTRING.join(aslist) + domain def getdomain(self): """Get the complete domain name from an address.""" @@ -394,6 +410,10 @@ def getdomain(self): elif self.field[self.pos] == '.': self.pos += 1 sdlist.append('.') + elif self.field[self.pos] == '@': + # bpo-34155: Don't parse domains with two `@` like + # `a@malicious.org@important.com`. + return EMPTYSTRING elif self.field[self.pos] in self.atomends: break else: diff --git a/Lib/email/_policybase.py b/Lib/email/_policybase.py index df4649676a..c9f0d74309 100644 --- a/Lib/email/_policybase.py +++ b/Lib/email/_policybase.py @@ -152,11 +152,18 @@ class Policy(_PolicyBase, metaclass=abc.ABCMeta): mangle_from_ -- a flag that, when True escapes From_ lines in the body of the message by putting a `>' in front of them. This is used when the message is being - serialized by a generator. Default: True. + serialized by a generator. Default: False. message_factory -- the class to use to create new message objects. If the value is None, the default is Message. + verify_generated_headers + -- if true, the generator verifies that each header + they are properly folded, so that a parser won't + treat it as multiple headers, start-of-body, or + part of another header. + This is a check against custom Header & fold() + implementations. """ raise_on_defect = False @@ -165,6 +172,7 @@ class Policy(_PolicyBase, metaclass=abc.ABCMeta): max_line_length = 78 mangle_from_ = False message_factory = None + verify_generated_headers = True def handle_defect(self, obj, defect): """Based on policy, either raise defect or call register_defect. @@ -294,12 +302,12 @@ def header_source_parse(self, sourcelines): """+ The name is parsed as everything up to the ':' and returned unmodified. The value is determined by stripping leading whitespace off the - remainder of the first line, joining all subsequent lines together, and + remainder of the first line joined with all subsequent lines, and stripping any trailing carriage return or linefeed characters. """ name, value = sourcelines[0].split(':', 1) - value = value.lstrip(' \t') + ''.join(sourcelines[1:]) + value = ''.join((value, *sourcelines[1:])).lstrip(' \t\r\n') return (name, value.rstrip('\r\n')) def header_store_parse(self, name, value): @@ -361,8 +369,12 @@ def _fold(self, name, value, sanitize): # Assume it is a Header-like object. h = value if h is not None: - parts.append(h.encode(linesep=self.linesep, - maxlinelen=self.max_line_length)) + # The Header class interprets a value of None for maxlinelen as the + # default value of 78, as recommended by RFC 2822. + maxlinelen = 0 + if self.max_line_length is not None: + maxlinelen = self.max_line_length + parts.append(h.encode(linesep=self.linesep, maxlinelen=maxlinelen)) parts.append(self.linesep) return ''.join(parts) diff --git a/Lib/email/architecture.rst b/Lib/email/architecture.rst index 78572ae63b..fcd10bde13 100644 --- a/Lib/email/architecture.rst +++ b/Lib/email/architecture.rst @@ -66,7 +66,7 @@ data payloads. Message Lifecycle ----------------- -The general lifecyle of a message is: +The general lifecycle of a message is: Creation A `Message` object can be created by a Parser, or it can be diff --git a/Lib/email/base64mime.py b/Lib/email/base64mime.py index 17f0818f6c..4cdf22666e 100644 --- a/Lib/email/base64mime.py +++ b/Lib/email/base64mime.py @@ -45,7 +45,6 @@ MISC_LEN = 7 - # Helpers def header_length(bytearray): """Return the length of s when it is encoded with base64.""" @@ -57,7 +56,6 @@ def header_length(bytearray): return n - def header_encode(header_bytes, charset='iso-8859-1'): """Encode a single header line with Base64 encoding in a given charset. @@ -72,7 +70,6 @@ def header_encode(header_bytes, charset='iso-8859-1'): return '=?%s?b?%s?=' % (charset, encoded) - def body_encode(s, maxlinelen=76, eol=NL): r"""Encode a string with base64. @@ -84,7 +81,7 @@ def body_encode(s, maxlinelen=76, eol=NL): in an email. """ if not s: - return s + return "" encvec = [] max_unencoded = maxlinelen * 3 // 4 @@ -98,7 +95,6 @@ def body_encode(s, maxlinelen=76, eol=NL): return EMPTYSTRING.join(encvec) - def decode(string): """Decode a raw base64 string, returning a bytes object. diff --git a/Lib/email/charset.py b/Lib/email/charset.py index ee564040c6..043801107b 100644 --- a/Lib/email/charset.py +++ b/Lib/email/charset.py @@ -18,7 +18,6 @@ from email.encoders import encode_7or8bit - # Flags for types of header encodings QP = 1 # Quoted-Printable BASE64 = 2 # Base64 @@ -32,7 +31,6 @@ EMPTYSTRING = '' - # Defaults CHARSETS = { # input header enc body enc output conv @@ -104,7 +102,6 @@ } - # Convenience functions for extending the above mappings def add_charset(charset, header_enc=None, body_enc=None, output_charset=None): """Add character set properties to the global registry. @@ -112,8 +109,8 @@ def add_charset(charset, header_enc=None, body_enc=None, output_charset=None): charset is the input character set, and must be the canonical name of a character set. - Optional header_enc and body_enc is either Charset.QP for - quoted-printable, Charset.BASE64 for base64 encoding, Charset.SHORTEST for + Optional header_enc and body_enc is either charset.QP for + quoted-printable, charset.BASE64 for base64 encoding, charset.SHORTEST for the shortest of qp or base64 encoding, or None for no encoding. SHORTEST is only valid for header_enc. It describes how message headers and message bodies in the input charset are to be encoded. Default is no @@ -153,7 +150,6 @@ def add_codec(charset, codecname): CODEC_MAP[charset] = codecname - # Convenience function for encoding strings, taking into account # that they might be unknown-8bit (ie: have surrogate-escaped bytes) def _encode(string, codec): @@ -163,7 +159,6 @@ def _encode(string, codec): return string.encode(codec) - class Charset: """Map character sets to their email properties. @@ -185,13 +180,13 @@ class Charset: header_encoding: If the character set must be encoded before it can be used in an email header, this attribute will be set to - Charset.QP (for quoted-printable), Charset.BASE64 (for - base64 encoding), or Charset.SHORTEST for the shortest of + charset.QP (for quoted-printable), charset.BASE64 (for + base64 encoding), or charset.SHORTEST for the shortest of QP or BASE64 encoding. Otherwise, it will be None. body_encoding: Same as header_encoding, but describes the encoding for the mail message's body, which indeed may be different than the - header encoding. Charset.SHORTEST is not allowed for + header encoding. charset.SHORTEST is not allowed for body_encoding. output_charset: Some character sets must be converted before they can be @@ -241,11 +236,9 @@ def __init__(self, input_charset=DEFAULT_CHARSET): self.output_codec = CODEC_MAP.get(self.output_charset, self.output_charset) - def __str__(self): + def __repr__(self): return self.input_charset.lower() - __repr__ = __str__ - def __eq__(self, other): return str(self) == str(other).lower() @@ -348,7 +341,6 @@ def header_encode_lines(self, string, maxlengths): if not lines and not current_line: lines.append(None) else: - separator = (' ' if lines else '') joined_line = EMPTYSTRING.join(current_line) header_bytes = _encode(joined_line, codec) lines.append(encoder(header_bytes)) diff --git a/Lib/email/contentmanager.py b/Lib/email/contentmanager.py index b904ded94c..b4f5830bea 100644 --- a/Lib/email/contentmanager.py +++ b/Lib/email/contentmanager.py @@ -72,12 +72,14 @@ def get_non_text_content(msg): return msg.get_payload(decode=True) for maintype in 'audio image video application'.split(): raw_data_manager.add_get_handler(maintype, get_non_text_content) +del maintype def get_message_content(msg): return msg.get_payload(0) for subtype in 'rfc822 external-body'.split(): raw_data_manager.add_get_handler('message/'+subtype, get_message_content) +del subtype def get_and_fixup_unknown_message_content(msg): @@ -144,15 +146,15 @@ def _encode_text(string, charset, cte, policy): linesep = policy.linesep.encode('ascii') def embedded_body(lines): return linesep.join(lines) + linesep def normal_body(lines): return b'\n'.join(lines) + b'\n' - if cte==None: + if cte is None: # Use heuristics to decide on the "best" encoding. - try: - return '7bit', normal_body(lines).decode('ascii') - except UnicodeDecodeError: - pass - if (policy.cte_type == '8bit' and - max(len(x) for x in lines) <= policy.max_line_length): - return '8bit', normal_body(lines).decode('ascii', 'surrogateescape') + if max((len(x) for x in lines), default=0) <= policy.max_line_length: + try: + return '7bit', normal_body(lines).decode('ascii') + except UnicodeDecodeError: + pass + if policy.cte_type == '8bit': + return '8bit', normal_body(lines).decode('ascii', 'surrogateescape') sniff = embedded_body(lines[:10]) sniff_qp = quoprimime.body_encode(sniff.decode('latin-1'), policy.max_line_length) @@ -238,9 +240,7 @@ def set_bytes_content(msg, data, maintype, subtype, cte='base64', data = binascii.b2a_qp(data, istext=False, header=False, quotetabs=True) data = data.decode('ascii') elif cte == '7bit': - # Make sure it really is only ASCII. The early warning here seems - # worth the overhead...if you care write your own content manager :). - data.encode('ascii') + data = data.decode('ascii') elif cte in ('8bit', 'binary'): data = data.decode('ascii', 'surrogateescape') msg.set_payload(data) @@ -248,3 +248,4 @@ def set_bytes_content(msg, data, maintype, subtype, cte='base64', _finalize_set(msg, disposition, filename, cid, params) for typ in (bytes, bytearray, memoryview): raw_data_manager.add_set_handler(typ, set_bytes_content) +del typ diff --git a/Lib/email/encoders.py b/Lib/email/encoders.py index 0a66acb624..17bd1ab7b1 100644 --- a/Lib/email/encoders.py +++ b/Lib/email/encoders.py @@ -16,7 +16,6 @@ from quopri import encodestring as _encodestring - def _qencode(s): enc = _encodestring(s, quotetabs=True) # Must encode spaces, which quopri.encodestring() doesn't do @@ -34,7 +33,6 @@ def encode_base64(msg): msg['Content-Transfer-Encoding'] = 'base64' - def encode_quopri(msg): """Encode the message's payload in quoted-printable. @@ -46,7 +44,6 @@ def encode_quopri(msg): msg['Content-Transfer-Encoding'] = 'quoted-printable' - def encode_7or8bit(msg): """Set the Content-Transfer-Encoding header to 7bit or 8bit.""" orig = msg.get_payload(decode=True) @@ -64,6 +61,5 @@ def encode_7or8bit(msg): msg['Content-Transfer-Encoding'] = '7bit' - def encode_noop(msg): """Do nothing.""" diff --git a/Lib/email/errors.py b/Lib/email/errors.py index 791239fa6a..02aa5eced6 100644 --- a/Lib/email/errors.py +++ b/Lib/email/errors.py @@ -29,6 +29,10 @@ class CharsetError(MessageError): """An illegal charset was given.""" +class HeaderWriteError(MessageError): + """Error while writing headers.""" + + # These are parsing defects which the parser was able to work around. class MessageDefect(ValueError): """Base class for a message defect.""" @@ -73,6 +77,9 @@ class InvalidBase64PaddingDefect(MessageDefect): class InvalidBase64CharactersDefect(MessageDefect): """base64 encoded sequence had characters not in base64 alphabet""" +class InvalidBase64LengthDefect(MessageDefect): + """base64 encoded sequence had invalid length (1 mod 4)""" + # These errors are specific to header parsing. class HeaderDefect(MessageDefect): @@ -105,3 +112,6 @@ class NonASCIILocalPartDefect(HeaderDefect): """local_part contains non-ASCII characters""" # This defect only occurs during unicode parsing, not when # parsing messages decoded from binary. + +class InvalidDateDefect(HeaderDefect): + """Header has unparsable or invalid date""" diff --git a/Lib/email/feedparser.py b/Lib/email/feedparser.py index 7c07ca8645..06d6b4a3af 100644 --- a/Lib/email/feedparser.py +++ b/Lib/email/feedparser.py @@ -37,11 +37,12 @@ headerRE = re.compile(r'^(From |[\041-\071\073-\176]*:|[\t ])') EMPTYSTRING = '' NL = '\n' +boundaryendRE = re.compile( + r'(?P--)?(?P[ \t]*)(?P\r\n|\r|\n)?$') NeedMoreData = object() - class BufferedSubFile(object): """A file-ish object that can have new data loaded into it. @@ -132,7 +133,6 @@ def __next__(self): return line - class FeedParser: """A feed-style parser of email.""" @@ -189,7 +189,7 @@ def close(self): assert not self._msgstack # Look for final set of defects if root.get_content_maintype() == 'multipart' \ - and not root.is_multipart(): + and not root.is_multipart() and not self._headersonly: defect = errors.MultipartInvariantViolationDefect() self.policy.handle_defect(root, defect) return root @@ -266,7 +266,7 @@ def _parsegen(self): yield NeedMoreData continue break - msg = self._pop_message() + self._pop_message() # We need to pop the EOF matcher in order to tell if we're at # the end of the current file, not the end of the last block # of message headers. @@ -320,7 +320,7 @@ def _parsegen(self): self._cur.set_payload(EMPTYSTRING.join(lines)) return # Make sure a valid content type was specified per RFC 2045:6.4. - if (self._cur.get('content-transfer-encoding', '8bit').lower() + if (str(self._cur.get('content-transfer-encoding', '8bit')).lower() not in ('7bit', '8bit', 'binary')): defect = errors.InvalidMultipartContentTransferEncodingDefect() self.policy.handle_defect(self._cur, defect) @@ -329,9 +329,10 @@ def _parsegen(self): # this onto the input stream until we've scanned past the # preamble. separator = '--' + boundary - boundaryre = re.compile( - '(?P' + re.escape(separator) + - r')(?P--)?(?P[ \t]*)(?P\r\n|\r|\n)?$') + def boundarymatch(line): + if not line.startswith(separator): + return None + return boundaryendRE.match(line, len(separator)) capturing_preamble = True preamble = [] linesep = False @@ -343,7 +344,7 @@ def _parsegen(self): continue if line == '': break - mo = boundaryre.match(line) + mo = boundarymatch(line) if mo: # If we're looking at the end boundary, we're done with # this multipart. If there was a newline at the end of @@ -375,13 +376,13 @@ def _parsegen(self): if line is NeedMoreData: yield NeedMoreData continue - mo = boundaryre.match(line) + mo = boundarymatch(line) if not mo: self._input.unreadline(line) break # Recurse to parse this subpart; the input stream points # at the subpart's first line. - self._input.push_eof_matcher(boundaryre.match) + self._input.push_eof_matcher(boundarymatch) for retval in self._parsegen(): if retval is NeedMoreData: yield NeedMoreData diff --git a/Lib/email/generator.py b/Lib/email/generator.py index ae670c2353..47b9df8f4e 100644 --- a/Lib/email/generator.py +++ b/Lib/email/generator.py @@ -14,15 +14,16 @@ from copy import deepcopy from io import StringIO, BytesIO from email.utils import _has_surrogates +from email.errors import HeaderWriteError UNDERSCORE = '_' NL = '\n' # XXX: no longer used by the code below. NLCRE = re.compile(r'\r\n|\r|\n') fcre = re.compile(r'^From ', re.MULTILINE) +NEWLINE_WITHOUT_FWSP = re.compile(r'\r\n[^ \t]|\r[^ \n\t]|\n[^ \t]') - class Generator: """Generates output from a Message object tree. @@ -170,7 +171,7 @@ def _write(self, msg): # parameter. # # The way we do this, so as to make the _handle_*() methods simpler, - # is to cache any subpart writes into a buffer. The we write the + # is to cache any subpart writes into a buffer. Then we write the # headers and the buffer contents. That way, subpart handlers can # Do The Right Thing, and can still modify the Content-Type: header if # necessary. @@ -186,7 +187,11 @@ def _write(self, msg): # If we munged the cte, copy the message again and re-fix the CTE. if munge_cte: msg = deepcopy(msg) - msg.replace_header('content-transfer-encoding', munge_cte[0]) + # Preserve the header order if the CTE header already exists. + if msg.get('content-transfer-encoding') is None: + msg['Content-Transfer-Encoding'] = munge_cte[0] + else: + msg.replace_header('content-transfer-encoding', munge_cte[0]) msg.replace_header('content-type', munge_cte[1]) # Write the headers. First we see if the message object wants to # handle that itself. If not, we'll do it generically. @@ -219,7 +224,16 @@ def _dispatch(self, msg): def _write_headers(self, msg): for h, v in msg.raw_items(): - self.write(self.policy.fold(h, v)) + folded = self.policy.fold(h, v) + if self.policy.verify_generated_headers: + linesep = self.policy.linesep + if not folded.endswith(self.policy.linesep): + raise HeaderWriteError( + f'folded header does not end with {linesep!r}: {folded!r}') + if NEWLINE_WITHOUT_FWSP.search(folded.removesuffix(linesep)): + raise HeaderWriteError( + f'folded header contains newline: {folded!r}') + self.write(folded) # A blank line always separates headers from body self.write(self._NL) @@ -240,7 +254,7 @@ def _handle_text(self, msg): # existing message. msg = deepcopy(msg) del msg['content-transfer-encoding'] - msg.set_payload(payload, charset) + msg.set_payload(msg._payload, charset) payload = msg.get_payload() self._munge_cte = (msg['content-transfer-encoding'], msg['content-type']) @@ -388,7 +402,7 @@ def _make_boundary(cls, text=None): def _compile_re(cls, s, flags): return re.compile(s, flags) - + class BytesGenerator(Generator): """Generates a bytes version of a Message object tree. @@ -439,7 +453,6 @@ def _compile_re(cls, s, flags): return re.compile(s.encode('ascii'), flags) - _FMT = '[Non-text (%(type)s) part of message omitted, filename %(filename)s]' class DecodedGenerator(Generator): @@ -499,7 +512,6 @@ def _dispatch(self, msg): }, file=self) - # Helper used by Generator._make_boundary _width = len(repr(sys.maxsize-1)) _fmt = '%%0%dd' % _width diff --git a/Lib/email/header.py b/Lib/email/header.py index c7b2dd9f31..984851a7d9 100644 --- a/Lib/email/header.py +++ b/Lib/email/header.py @@ -36,11 +36,11 @@ =\? # literal =? (?P[^?]*?) # non-greedy up to the next ? is the charset \? # literal ? - (?P[qb]) # either a "q" or a "b", case insensitive + (?P[qQbB]) # either a "q" or a "b", case insensitive \? # literal ? (?P.*?) # non-greedy up to the next ?= is the encoded string \?= # literal ?= - ''', re.VERBOSE | re.IGNORECASE | re.MULTILINE) + ''', re.VERBOSE | re.MULTILINE) # Field name regexp, including trailing colon, but not separating whitespace, # according to RFC 2822. Character range is from tilde to exclamation mark. @@ -52,12 +52,10 @@ _embedded_header = re.compile(r'\n[^ \t]+:') - # Helpers _max_append = email.quoprimime._max_append - def decode_header(header): """Decode a message header value without converting charset. @@ -152,7 +150,6 @@ def decode_header(header): return collapsed - def make_header(decoded_seq, maxlinelen=None, header_name=None, continuation_ws=' '): """Create a Header from a sequence of pairs as returned by decode_header() @@ -175,7 +172,6 @@ def make_header(decoded_seq, maxlinelen=None, header_name=None, return h - class Header: def __init__(self, s=None, charset=None, maxlinelen=None, header_name=None, @@ -409,7 +405,6 @@ def _normalize(self): self._chunks = chunks - class _ValueFormatter: def __init__(self, headerlen, maxlen, continuation_ws, splitchars): self._maxlen = maxlen @@ -431,7 +426,7 @@ def newline(self): if end_of_line != (' ', ''): self._current_line.push(*end_of_line) if len(self._current_line) > 0: - if self._current_line.is_onlyws(): + if self._current_line.is_onlyws() and self._lines: self._lines[-1] += str(self._current_line) else: self._lines.append(str(self._current_line)) diff --git a/Lib/email/headerregistry.py b/Lib/email/headerregistry.py index 0fc2231e5c..543141dc42 100644 --- a/Lib/email/headerregistry.py +++ b/Lib/email/headerregistry.py @@ -2,10 +2,6 @@ This module provides an implementation of the HeaderRegistry API. The implementation is designed to flexibly follow RFC5322 rules. - -Eventually HeaderRegistry will be a public API, but it isn't yet, -and will probably change some before that happens. - """ from types import MappingProxyType @@ -31,6 +27,11 @@ def __init__(self, display_name='', username='', domain='', addr_spec=None): without any Content Transfer Encoding. """ + + inputs = ''.join(filter(None, (display_name, username, domain, addr_spec))) + if '\r' in inputs or '\n' in inputs: + raise ValueError("invalid arguments; address parts cannot contain CR or LF") + # This clause with its potential 'raise' may only happen when an # application program creates an Address object using an addr_spec # keyword. The email library code itself must always supply username @@ -69,11 +70,9 @@ def addr_spec(self): """The addr_spec (username@domain) portion of the address, quoted according to RFC 5322 rules, but with no Content Transfer Encoding. """ - nameset = set(self.username) - if len(nameset) > len(nameset-parser.DOT_ATOM_ENDS): - lp = parser.quote_string(self.username) - else: - lp = self.username + lp = self.username + if not parser.DOT_ATOM_ENDS.isdisjoint(lp): + lp = parser.quote_string(lp) if self.domain: return lp + '@' + self.domain if not lp: @@ -86,19 +85,17 @@ def __repr__(self): self.display_name, self.username, self.domain) def __str__(self): - nameset = set(self.display_name) - if len(nameset) > len(nameset-parser.SPECIALS): - disp = parser.quote_string(self.display_name) - else: - disp = self.display_name + disp = self.display_name + if not parser.SPECIALS.isdisjoint(disp): + disp = parser.quote_string(disp) if disp: addr_spec = '' if self.addr_spec=='<>' else self.addr_spec return "{} <{}>".format(disp, addr_spec) return self.addr_spec def __eq__(self, other): - if type(other) != type(self): - return False + if not isinstance(other, Address): + return NotImplemented return (self.display_name == other.display_name and self.username == other.username and self.domain == other.domain) @@ -141,17 +138,15 @@ def __str__(self): if self.display_name is None and len(self.addresses)==1: return str(self.addresses[0]) disp = self.display_name - if disp is not None: - nameset = set(disp) - if len(nameset) > len(nameset-parser.SPECIALS): - disp = parser.quote_string(disp) + if disp is not None and not parser.SPECIALS.isdisjoint(disp): + disp = parser.quote_string(disp) adrstr = ", ".join(str(x) for x in self.addresses) adrstr = ' ' + adrstr if adrstr else adrstr return "{}:{};".format(disp, adrstr) def __eq__(self, other): - if type(other) != type(self): - return False + if not isinstance(other, Group): + return NotImplemented return (self.display_name == other.display_name and self.addresses == other.addresses) @@ -223,7 +218,7 @@ def __reduce__(self): self.__class__.__bases__, str(self), ), - self.__dict__) + self.__getstate__()) @classmethod def _reconstruct(cls, value): @@ -245,13 +240,16 @@ def fold(self, *, policy): the header name and the ': ' separator. """ - # At some point we need to only put fws here if it was in the source. + # At some point we need to put fws here if it was in the source. header = parser.Header([ parser.HeaderLabel([ parser.ValueTerminal(self.name, 'header-name'), parser.ValueTerminal(':', 'header-sep')]), - parser.CFWSList([parser.WhiteSpaceTerminal(' ', 'fws')]), - self._parse_tree]) + ]) + if self._parse_tree: + header.append( + parser.CFWSList([parser.WhiteSpaceTerminal(' ', 'fws')])) + header.append(self._parse_tree) return header.fold(policy=policy) @@ -300,7 +298,14 @@ def parse(cls, value, kwds): kwds['parse_tree'] = parser.TokenList() return if isinstance(value, str): - value = utils.parsedate_to_datetime(value) + kwds['decoded'] = value + try: + value = utils.parsedate_to_datetime(value) + except ValueError: + kwds['defects'].append(errors.InvalidDateDefect('Invalid date value or format')) + kwds['datetime'] = None + kwds['parse_tree'] = parser.TokenList() + return kwds['datetime'] = value kwds['decoded'] = utils.format_datetime(kwds['datetime']) kwds['parse_tree'] = cls.value_parser(kwds['decoded']) @@ -369,8 +374,8 @@ def groups(self): @property def addresses(self): if self._addresses is None: - self._addresses = tuple([address for group in self._groups - for address in group.addresses]) + self._addresses = tuple(address for group in self._groups + for address in group.addresses) return self._addresses @@ -517,6 +522,18 @@ def cte(self): return self._cte +class MessageIDHeader: + + max_count = 1 + value_parser = staticmethod(parser.parse_message_id) + + @classmethod + def parse(cls, value, kwds): + kwds['parse_tree'] = parse_tree = cls.value_parser(value) + kwds['decoded'] = str(parse_tree) + kwds['defects'].extend(parse_tree.all_defects) + + # The header factory # _default_header_map = { @@ -539,6 +556,7 @@ def cte(self): 'content-type': ContentTypeHeader, 'content-disposition': ContentDispositionHeader, 'content-transfer-encoding': ContentTransferEncodingHeader, + 'message-id': MessageIDHeader, } class HeaderRegistry: diff --git a/Lib/email/iterators.py b/Lib/email/iterators.py index b5502ee975..3410935e38 100644 --- a/Lib/email/iterators.py +++ b/Lib/email/iterators.py @@ -15,7 +15,6 @@ from io import StringIO - # This function will become a method of the Message class def walk(self): """Walk over the message tree, yielding each subpart. @@ -29,7 +28,6 @@ def walk(self): yield from subpart.walk() - # These two functions are imported into the Iterators.py interface module. def body_line_iterator(msg, decode=False): """Iterate over the parts, returning string payloads line-by-line. @@ -55,7 +53,6 @@ def typed_subpart_iterator(msg, maintype='text', subtype=None): yield subpart - def _structure(msg, fp=None, level=0, include_default=False): """A handy debugging aid""" if fp is None: diff --git a/Lib/email/message.py b/Lib/email/message.py index b6512f2198..46bb8c2194 100644 --- a/Lib/email/message.py +++ b/Lib/email/message.py @@ -6,15 +6,15 @@ __all__ = ['Message', 'EmailMessage'] +import binascii import re -import uu import quopri from io import BytesIO, StringIO # Intrapackage imports from email import utils from email import errors -from email._policybase import Policy, compat32 +from email._policybase import compat32 from email import charset as _charset from email._encoded_words import decode_b Charset = _charset.Charset @@ -35,7 +35,7 @@ def _splitparam(param): if not sep: return a.strip(), None return a.strip(), b.strip() - + def _formatparam(param, value=None, quote=True): """Convenience function to format and return a key=value pair. @@ -101,7 +101,37 @@ def _unquotevalue(value): return utils.unquote(value) - +def _decode_uu(encoded): + """Decode uuencoded data.""" + decoded_lines = [] + encoded_lines_iter = iter(encoded.splitlines()) + for line in encoded_lines_iter: + if line.startswith(b"begin "): + mode, _, path = line.removeprefix(b"begin ").partition(b" ") + try: + int(mode, base=8) + except ValueError: + continue + else: + break + else: + raise ValueError("`begin` line not found") + for line in encoded_lines_iter: + if not line: + raise ValueError("Truncated input") + elif line.strip(b' \t\r\n\f') == b'end': + break + try: + decoded_line = binascii.a2b_uu(line) + except binascii.Error: + # Workaround for broken uuencoders by /Fredrik Lundh + nbytes = (((line[0]-32) & 63) * 4 + 5) // 3 + decoded_line = binascii.a2b_uu(line[:nbytes]) + decoded_lines.append(decoded_line) + + return b''.join(decoded_lines) + + class Message: """Basic message object. @@ -141,7 +171,7 @@ def as_string(self, unixfrom=False, maxheaderlen=0, policy=None): header. For backward compatibility reasons, if maxheaderlen is not specified it defaults to 0, so you must override it explicitly if you want a different maxheaderlen. 'policy' is passed to the - Generator instance used to serialize the mesasge; if it is not + Generator instance used to serialize the message; if it is not specified the policy associated with the message instance is used. If the message object contains binary data that is not encoded @@ -259,25 +289,26 @@ def get_payload(self, i=None, decode=False): # cte might be a Header, so for now stringify it. cte = str(self.get('content-transfer-encoding', '')).lower() # payload may be bytes here. - if isinstance(payload, str): - if utils._has_surrogates(payload): - bpayload = payload.encode('ascii', 'surrogateescape') - if not decode: + if not decode: + if isinstance(payload, str) and utils._has_surrogates(payload): + try: + bpayload = payload.encode('ascii', 'surrogateescape') try: - payload = bpayload.decode(self.get_param('charset', 'ascii'), 'replace') + payload = bpayload.decode(self.get_content_charset('ascii'), 'replace') except LookupError: payload = bpayload.decode('ascii', 'replace') - elif decode: - try: - bpayload = payload.encode('ascii') - except UnicodeError: - # This won't happen for RFC compliant messages (messages - # containing only ASCII code points in the unicode input). - # If it does happen, turn the string into bytes in a way - # guaranteed not to fail. - bpayload = payload.encode('raw-unicode-escape') - if not decode: + except UnicodeEncodeError: + pass return payload + if isinstance(payload, str): + try: + bpayload = payload.encode('ascii', 'surrogateescape') + except UnicodeEncodeError: + # This won't happen for RFC compliant messages (messages + # containing only ASCII code points in the unicode input). + # If it does happen, turn the string into bytes in a way + # guaranteed not to fail. + bpayload = payload.encode('raw-unicode-escape') if cte == 'quoted-printable': return quopri.decodestring(bpayload) elif cte == 'base64': @@ -288,13 +319,10 @@ def get_payload(self, i=None, decode=False): self.policy.handle_defect(self, defect) return value elif cte in ('x-uuencode', 'uuencode', 'uue', 'x-uue'): - in_file = BytesIO(bpayload) - out_file = BytesIO() try: - uu.decode(in_file, out_file, quiet=True) - return out_file.getvalue() - except uu.Error: - # Some decoding problem + return _decode_uu(bpayload) + except ValueError: + # Some decoding problem. return bpayload if isinstance(payload, str): return bpayload @@ -312,7 +340,7 @@ def set_payload(self, payload, charset=None): return if not isinstance(charset, Charset): charset = Charset(charset) - payload = payload.encode(charset.output_charset) + payload = payload.encode(charset.output_charset, 'surrogateescape') if hasattr(payload, 'decode'): self._payload = payload.decode('ascii', 'surrogateescape') else: @@ -421,7 +449,11 @@ def __delitem__(self, name): self._headers = newheaders def __contains__(self, name): - return name.lower() in [k.lower() for k, v in self._headers] + name_lower = name.lower() + for k, v in self._headers: + if name_lower == k.lower(): + return True + return False def __iter__(self): for field, value in self._headers: @@ -948,7 +980,7 @@ def __init__(self, policy=None): if policy is None: from email.policy import default policy = default - Message.__init__(self, policy) + super().__init__(policy) def as_string(self, unixfrom=False, maxheaderlen=None, policy=None): @@ -958,14 +990,14 @@ def as_string(self, unixfrom=False, maxheaderlen=None, policy=None): header. maxheaderlen is retained for backward compatibility with the base Message class, but defaults to None, meaning that the policy value for max_line_length controls the header maximum length. 'policy' is - passed to the Generator instance used to serialize the mesasge; if it + passed to the Generator instance used to serialize the message; if it is not specified the policy associated with the message instance is used. """ policy = self.policy if policy is None else policy if maxheaderlen is None: maxheaderlen = policy.max_line_length - return super().as_string(maxheaderlen=maxheaderlen, policy=policy) + return super().as_string(unixfrom, maxheaderlen, policy) def __str__(self): return self.as_string(policy=self.policy.clone(utf8=True)) @@ -982,7 +1014,7 @@ def _find_body(self, part, preferencelist): if subtype in preferencelist: yield (preferencelist.index(subtype), part) return - if maintype != 'multipart': + if maintype != 'multipart' or not self.is_multipart(): return if subtype != 'related': for subpart in part.iter_parts(): @@ -1041,7 +1073,16 @@ def iter_attachments(self): maintype, subtype = self.get_content_type().split('/') if maintype != 'multipart' or subtype == 'alternative': return - parts = self.get_payload().copy() + payload = self.get_payload() + # Certain malformed messages can have content type set to `multipart/*` + # but still have single part body, in which case payload.copy() can + # fail with AttributeError. + try: + parts = payload.copy() + except AttributeError: + # payload is not a list, it is most probably a string. + return + if maintype == 'multipart' and subtype == 'related': # For related, we treat everything but the root as an attachment. # The root may be indicated by 'start'; if there's no start or we @@ -1078,7 +1119,7 @@ def iter_parts(self): Return an empty iterator for a non-multipart. """ - if self.get_content_maintype() == 'multipart': + if self.is_multipart(): yield from self.get_payload() def get_content(self, *args, content_manager=None, **kw): diff --git a/Lib/email/mime/application.py b/Lib/email/mime/application.py index 6877e554e1..f67cbad3f0 100644 --- a/Lib/email/mime/application.py +++ b/Lib/email/mime/application.py @@ -17,7 +17,7 @@ def __init__(self, _data, _subtype='octet-stream', _encoder=encoders.encode_base64, *, policy=None, **_params): """Create an application/* type MIME document. - _data is a string containing the raw application data. + _data contains the bytes for the raw application data. _subtype is the MIME content type subtype, defaulting to 'octet-stream'. diff --git a/Lib/email/mime/audio.py b/Lib/email/mime/audio.py index 4bcd7b224a..aa0c4905cb 100644 --- a/Lib/email/mime/audio.py +++ b/Lib/email/mime/audio.py @@ -6,39 +6,10 @@ __all__ = ['MIMEAudio'] -import sndhdr - -from io import BytesIO from email import encoders from email.mime.nonmultipart import MIMENonMultipart - -_sndhdr_MIMEmap = {'au' : 'basic', - 'wav' :'x-wav', - 'aiff':'x-aiff', - 'aifc':'x-aiff', - } - -# There are others in sndhdr that don't have MIME types. :( -# Additional ones to be added to sndhdr? midi, mp3, realaudio, wma?? -def _whatsnd(data): - """Try to identify a sound file type. - - sndhdr.what() has a pretty cruddy interface, unfortunately. This is why - we re-do it here. It would be easier to reverse engineer the Unix 'file' - command and use the standard 'magic' file, as shipped with a modern Unix. - """ - hdr = data[:512] - fakefile = BytesIO(hdr) - for testfn in sndhdr.tests: - res = testfn(hdr, fakefile) - if res is not None: - return _sndhdr_MIMEmap.get(res[0]) - return None - - - class MIMEAudio(MIMENonMultipart): """Class for generating audio/* MIME documents.""" @@ -46,8 +17,8 @@ def __init__(self, _audiodata, _subtype=None, _encoder=encoders.encode_base64, *, policy=None, **_params): """Create an audio/* type MIME document. - _audiodata is a string containing the raw audio data. If this data - can be decoded by the standard Python `sndhdr' module, then the + _audiodata contains the bytes for the raw audio data. If this data + can be decoded as au, wav, aiff, or aifc, then the subtype will be automatically included in the Content-Type header. Otherwise, you can specify the specific audio subtype via the _subtype parameter. If _subtype is not given, and no subtype can be @@ -65,10 +36,62 @@ def __init__(self, _audiodata, _subtype=None, header. """ if _subtype is None: - _subtype = _whatsnd(_audiodata) + _subtype = _what(_audiodata) if _subtype is None: raise TypeError('Could not find audio MIME subtype') MIMENonMultipart.__init__(self, 'audio', _subtype, policy=policy, **_params) self.set_payload(_audiodata) _encoder(self) + + +_rules = [] + + +# Originally from the sndhdr module. +# +# There are others in sndhdr that don't have MIME types. :( +# Additional ones to be added to sndhdr? midi, mp3, realaudio, wma?? +def _what(data): + # Try to identify a sound file type. + # + # sndhdr.what() had a pretty cruddy interface, unfortunately. This is why + # we re-do it here. It would be easier to reverse engineer the Unix 'file' + # command and use the standard 'magic' file, as shipped with a modern Unix. + for testfn in _rules: + if res := testfn(data): + return res + else: + return None + + +def rule(rulefunc): + _rules.append(rulefunc) + return rulefunc + + +@rule +def _aiff(h): + if not h.startswith(b'FORM'): + return None + if h[8:12] in {b'AIFC', b'AIFF'}: + return 'x-aiff' + else: + return None + + +@rule +def _au(h): + if h.startswith(b'.snd'): + return 'basic' + else: + return None + + +@rule +def _wav(h): + # 'RIFF' 'WAVE' 'fmt ' + if not h.startswith(b'RIFF') or h[8:12] != b'WAVE' or h[12:16] != b'fmt ': + return None + else: + return "x-wav" diff --git a/Lib/email/mime/base.py b/Lib/email/mime/base.py index 1a3f9b51f6..f601f621ce 100644 --- a/Lib/email/mime/base.py +++ b/Lib/email/mime/base.py @@ -11,7 +11,6 @@ from email import message - class MIMEBase(message.Message): """Base class for MIME specializations.""" diff --git a/Lib/email/mime/image.py b/Lib/email/mime/image.py index 92724643cd..4b7f2f9cba 100644 --- a/Lib/email/mime/image.py +++ b/Lib/email/mime/image.py @@ -6,13 +6,10 @@ __all__ = ['MIMEImage'] -import imghdr - from email import encoders from email.mime.nonmultipart import MIMENonMultipart - class MIMEImage(MIMENonMultipart): """Class for generating image/* type MIME documents.""" @@ -20,11 +17,11 @@ def __init__(self, _imagedata, _subtype=None, _encoder=encoders.encode_base64, *, policy=None, **_params): """Create an image/* type MIME document. - _imagedata is a string containing the raw image data. If this data - can be decoded by the standard Python `imghdr' module, then the - subtype will be automatically included in the Content-Type header. - Otherwise, you can specify the specific image subtype via the _subtype - parameter. + _imagedata contains the bytes for the raw image data. If the data + type can be detected (jpeg, png, gif, tiff, rgb, pbm, pgm, ppm, + rast, xbm, bmp, webp, and exr attempted), then the subtype will be + automatically included in the Content-Type header. Otherwise, you can + specify the specific image subtype via the _subtype parameter. _encoder is a function which will perform the actual encoding for transport of the image data. It takes one argument, which is this @@ -37,11 +34,119 @@ def __init__(self, _imagedata, _subtype=None, constructor, which turns them into parameters on the Content-Type header. """ - if _subtype is None: - _subtype = imghdr.what(None, _imagedata) + _subtype = _what(_imagedata) if _subtype is None else _subtype if _subtype is None: raise TypeError('Could not guess image MIME subtype') MIMENonMultipart.__init__(self, 'image', _subtype, policy=policy, **_params) self.set_payload(_imagedata) _encoder(self) + + +_rules = [] + + +# Originally from the imghdr module. +def _what(data): + for rule in _rules: + if res := rule(data): + return res + else: + return None + + +def rule(rulefunc): + _rules.append(rulefunc) + return rulefunc + + +@rule +def _jpeg(h): + """JPEG data with JFIF or Exif markers; and raw JPEG""" + if h[6:10] in (b'JFIF', b'Exif'): + return 'jpeg' + elif h[:4] == b'\xff\xd8\xff\xdb': + return 'jpeg' + + +@rule +def _png(h): + if h.startswith(b'\211PNG\r\n\032\n'): + return 'png' + + +@rule +def _gif(h): + """GIF ('87 and '89 variants)""" + if h[:6] in (b'GIF87a', b'GIF89a'): + return 'gif' + + +@rule +def _tiff(h): + """TIFF (can be in Motorola or Intel byte order)""" + if h[:2] in (b'MM', b'II'): + return 'tiff' + + +@rule +def _rgb(h): + """SGI image library""" + if h.startswith(b'\001\332'): + return 'rgb' + + +@rule +def _pbm(h): + """PBM (portable bitmap)""" + if len(h) >= 3 and \ + h[0] == ord(b'P') and h[1] in b'14' and h[2] in b' \t\n\r': + return 'pbm' + + +@rule +def _pgm(h): + """PGM (portable graymap)""" + if len(h) >= 3 and \ + h[0] == ord(b'P') and h[1] in b'25' and h[2] in b' \t\n\r': + return 'pgm' + + +@rule +def _ppm(h): + """PPM (portable pixmap)""" + if len(h) >= 3 and \ + h[0] == ord(b'P') and h[1] in b'36' and h[2] in b' \t\n\r': + return 'ppm' + + +@rule +def _rast(h): + """Sun raster file""" + if h.startswith(b'\x59\xA6\x6A\x95'): + return 'rast' + + +@rule +def _xbm(h): + """X bitmap (X10 or X11)""" + if h.startswith(b'#define '): + return 'xbm' + + +@rule +def _bmp(h): + if h.startswith(b'BM'): + return 'bmp' + + +@rule +def _webp(h): + if h.startswith(b'RIFF') and h[8:12] == b'WEBP': + return 'webp' + + +@rule +def _exr(h): + if h.startswith(b'\x76\x2f\x31\x01'): + return 'exr' diff --git a/Lib/email/mime/message.py b/Lib/email/mime/message.py index 07e4f2d119..61836b5a78 100644 --- a/Lib/email/mime/message.py +++ b/Lib/email/mime/message.py @@ -10,7 +10,6 @@ from email.mime.nonmultipart import MIMENonMultipart - class MIMEMessage(MIMENonMultipart): """Class representing message/* MIME documents.""" diff --git a/Lib/email/mime/multipart.py b/Lib/email/mime/multipart.py index 2d3f288810..94d81c771a 100644 --- a/Lib/email/mime/multipart.py +++ b/Lib/email/mime/multipart.py @@ -9,7 +9,6 @@ from email.mime.base import MIMEBase - class MIMEMultipart(MIMEBase): """Base class for MIME multipart/* type messages.""" diff --git a/Lib/email/mime/nonmultipart.py b/Lib/email/mime/nonmultipart.py index e1f51968b5..a41386eb14 100644 --- a/Lib/email/mime/nonmultipart.py +++ b/Lib/email/mime/nonmultipart.py @@ -10,7 +10,6 @@ from email.mime.base import MIMEBase - class MIMENonMultipart(MIMEBase): """Base class for MIME non-multipart type messages.""" diff --git a/Lib/email/mime/text.py b/Lib/email/mime/text.py index 35b4423830..7672b78913 100644 --- a/Lib/email/mime/text.py +++ b/Lib/email/mime/text.py @@ -6,11 +6,9 @@ __all__ = ['MIMEText'] -from email.charset import Charset from email.mime.nonmultipart import MIMENonMultipart - class MIMEText(MIMENonMultipart): """Class for generating text/* type MIME documents.""" @@ -37,6 +35,6 @@ def __init__(self, _text, _subtype='plain', _charset=None, *, policy=None): _charset = 'utf-8' MIMENonMultipart.__init__(self, 'text', _subtype, policy=policy, - **{'charset': str(_charset)}) + charset=str(_charset)) self.set_payload(_text, _charset) diff --git a/Lib/email/parser.py b/Lib/email/parser.py index 555b172560..06d99b17f2 100644 --- a/Lib/email/parser.py +++ b/Lib/email/parser.py @@ -13,7 +13,6 @@ from email._policybase import compat32 - class Parser: def __init__(self, _class=None, *, policy=compat32): """Parser of RFC 2822 and MIME email messages. @@ -50,10 +49,7 @@ def parse(self, fp, headersonly=False): feedparser = FeedParser(self._class, policy=self.policy) if headersonly: feedparser._set_headersonly() - while True: - data = fp.read(8192) - if not data: - break + while data := fp.read(8192): feedparser.feed(data) return feedparser.close() @@ -68,7 +64,6 @@ def parsestr(self, text, headersonly=False): return self.parse(StringIO(text), headersonly=headersonly) - class HeaderParser(Parser): def parse(self, fp, headersonly=True): return Parser.parse(self, fp, True) @@ -76,7 +71,7 @@ def parse(self, fp, headersonly=True): def parsestr(self, text, headersonly=True): return Parser.parsestr(self, text, True) - + class BytesParser: def __init__(self, *args, **kw): diff --git a/Lib/email/policy.py b/Lib/email/policy.py index 5131311ac5..6e109b6501 100644 --- a/Lib/email/policy.py +++ b/Lib/email/policy.py @@ -3,6 +3,7 @@ """ import re +import sys from email._policybase import Policy, Compat32, compat32, _extend_docstrings from email.utils import _has_surrogates from email.headerregistry import HeaderRegistry as HeaderRegistry @@ -20,7 +21,7 @@ 'HTTP', ] -linesep_splitter = re.compile(r'\n|\r') +linesep_splitter = re.compile(r'\n|\r\n?') @_extend_docstrings class EmailPolicy(Policy): @@ -118,13 +119,13 @@ def header_source_parse(self, sourcelines): """+ The name is parsed as everything up to the ':' and returned unmodified. The value is determined by stripping leading whitespace off the - remainder of the first line, joining all subsequent lines together, and + remainder of the first line joined with all subsequent lines, and stripping any trailing carriage return or linefeed characters. (This is the same as Compat32). """ name, value = sourcelines[0].split(':', 1) - value = value.lstrip(' \t') + ''.join(sourcelines[1:]) + value = ''.join((value, *sourcelines[1:])).lstrip(' \t\r\n') return (name, value.rstrip('\r\n')) def header_store_parse(self, name, value): @@ -203,14 +204,22 @@ def fold_binary(self, name, value): def _fold(self, name, value, refold_binary=False): if hasattr(value, 'name'): return value.fold(policy=self) - maxlen = self.max_line_length if self.max_line_length else float('inf') - lines = value.splitlines() + maxlen = self.max_line_length if self.max_line_length else sys.maxsize + # We can't use splitlines here because it splits on more than \r and \n. + lines = linesep_splitter.split(value) refold = (self.refold_source == 'all' or self.refold_source == 'long' and (lines and len(lines[0])+len(name)+2 > maxlen or any(len(x) > maxlen for x in lines[1:]))) - if refold or refold_binary and _has_surrogates(value): + + if not refold: + if not self.utf8: + refold = not value.isascii() + elif refold_binary: + refold = _has_surrogates(value) + if refold: return self.header_factory(name, ''.join(lines)).fold(policy=self) + return name + ': ' + self.linesep.join(lines) + self.linesep diff --git a/Lib/email/quoprimime.py b/Lib/email/quoprimime.py index c543eb59ae..27fcbb5a26 100644 --- a/Lib/email/quoprimime.py +++ b/Lib/email/quoprimime.py @@ -148,6 +148,7 @@ def header_encode(header_bytes, charset='iso-8859-1'): _QUOPRI_BODY_ENCODE_MAP = _QUOPRI_BODY_MAP[:] for c in b'\r\n': _QUOPRI_BODY_ENCODE_MAP[c] = chr(c) +del c def body_encode(body, maxlinelen=76, eol=NL): """Encode with quoted-printable, wrapping at maxlinelen characters. @@ -173,7 +174,7 @@ def body_encode(body, maxlinelen=76, eol=NL): if not body: return body - # quote speacial characters + # quote special characters body = body.translate(_QUOPRI_BODY_ENCODE_MAP) soft_break = '=' + eol diff --git a/Lib/email/utils.py b/Lib/email/utils.py index a759d23308..e42674fa4f 100644 --- a/Lib/email/utils.py +++ b/Lib/email/utils.py @@ -25,8 +25,6 @@ import os import re import time -import random -import socket import datetime import urllib.parse @@ -36,9 +34,6 @@ from email._parseaddr import parsedate, parsedate_tz, _parsedate_tz -# Intrapackage imports -from email.charset import Charset - COMMASPACE = ', ' EMPTYSTRING = '' UEMPTYSTRING = '' @@ -48,11 +43,12 @@ specialsre = re.compile(r'[][\\()<>@,:;".]') escapesre = re.compile(r'[\\"]') + def _has_surrogates(s): - """Return True if s contains surrogate-escaped binary data.""" + """Return True if s may contain surrogate-escaped binary data.""" # This check is based on the fact that unless there are surrogates, utf8 # (Python's default encoding) can encode any string. This is the fastest - # way to check for surrogates, see issue 11454 for timings. + # way to check for surrogates, see bpo-11454 (moved to gh-55663) for timings. try: s.encode() return False @@ -81,7 +77,7 @@ def formataddr(pair, charset='utf-8'): If the first element of pair is false, then the second element is returned unmodified. - Optional charset if given is the character set that is used to encode + The optional charset is the character set that is used to encode realname in case realname is not ASCII safe. Can be an instance of str or a Charset-like object which has a header_encode method. Default is 'utf-8'. @@ -94,6 +90,8 @@ def formataddr(pair, charset='utf-8'): name.encode('ascii') except UnicodeEncodeError: if isinstance(charset, str): + # lazy import to improve module import time + from email.charset import Charset charset = Charset(charset) encoded_name = charset.header_encode(name) return "%s <%s>" % (encoded_name, address) @@ -106,24 +104,127 @@ def formataddr(pair, charset='utf-8'): return address +def _iter_escaped_chars(addr): + pos = 0 + escape = False + for pos, ch in enumerate(addr): + if escape: + yield (pos, '\\' + ch) + escape = False + elif ch == '\\': + escape = True + else: + yield (pos, ch) + if escape: + yield (pos, '\\') + + +def _strip_quoted_realnames(addr): + """Strip real names between quotes.""" + if '"' not in addr: + # Fast path + return addr + + start = 0 + open_pos = None + result = [] + for pos, ch in _iter_escaped_chars(addr): + if ch == '"': + if open_pos is None: + open_pos = pos + else: + if start != open_pos: + result.append(addr[start:open_pos]) + start = pos + 1 + open_pos = None + + if start < len(addr): + result.append(addr[start:]) + + return ''.join(result) -def getaddresses(fieldvalues): - """Return a list of (REALNAME, EMAIL) for each fieldvalue.""" - all = COMMASPACE.join(fieldvalues) - a = _AddressList(all) - return a.addresslist +supports_strict_parsing = True +def getaddresses(fieldvalues, *, strict=True): + """Return a list of (REALNAME, EMAIL) or ('','') for each fieldvalue. -ecre = re.compile(r''' - =\? # literal =? - (?P[^?]*?) # non-greedy up to the next ? is the charset - \? # literal ? - (?P[qb]) # either a "q" or a "b", case insensitive - \? # literal ? - (?P.*?) # non-greedy up to the next ?= is the atom - \?= # literal ?= - ''', re.VERBOSE | re.IGNORECASE) + When parsing fails for a fieldvalue, a 2-tuple of ('', '') is returned in + its place. + + If strict is true, use a strict parser which rejects malformed inputs. + """ + + # If strict is true, if the resulting list of parsed addresses is greater + # than the number of fieldvalues in the input list, a parsing error has + # occurred and consequently a list containing a single empty 2-tuple [('', + # '')] is returned in its place. This is done to avoid invalid output. + # + # Malformed input: getaddresses(['alice@example.com ']) + # Invalid output: [('', 'alice@example.com'), ('', 'bob@example.com')] + # Safe output: [('', '')] + + if not strict: + all = COMMASPACE.join(str(v) for v in fieldvalues) + a = _AddressList(all) + return a.addresslist + + fieldvalues = [str(v) for v in fieldvalues] + fieldvalues = _pre_parse_validation(fieldvalues) + addr = COMMASPACE.join(fieldvalues) + a = _AddressList(addr) + result = _post_parse_validation(a.addresslist) + + # Treat output as invalid if the number of addresses is not equal to the + # expected number of addresses. + n = 0 + for v in fieldvalues: + # When a comma is used in the Real Name part it is not a deliminator. + # So strip those out before counting the commas. + v = _strip_quoted_realnames(v) + # Expected number of addresses: 1 + number of commas + n += 1 + v.count(',') + if len(result) != n: + return [('', '')] + + return result + + +def _check_parenthesis(addr): + # Ignore parenthesis in quoted real names. + addr = _strip_quoted_realnames(addr) + + opens = 0 + for pos, ch in _iter_escaped_chars(addr): + if ch == '(': + opens += 1 + elif ch == ')': + opens -= 1 + if opens < 0: + return False + return (opens == 0) + + +def _pre_parse_validation(email_header_fields): + accepted_values = [] + for v in email_header_fields: + if not _check_parenthesis(v): + v = "('', '')" + accepted_values.append(v) + + return accepted_values + + +def _post_parse_validation(parsed_email_header_tuples): + accepted_values = [] + # The parser would have parsed a correctly formatted domain-literal + # The existence of an [ after parsing indicates a parsing failure + for v in parsed_email_header_tuples: + if '[' in v[1]: + v = ('', '') + accepted_values.append(v) + + return accepted_values def _format_timetuple_and_zone(timetuple, zone): @@ -140,7 +241,7 @@ def formatdate(timeval=None, localtime=False, usegmt=False): Fri, 09 Nov 2001 01:08:47 -0000 - Optional timeval if given is a floating point time value as accepted by + Optional timeval if given is a floating-point time value as accepted by gmtime() and localtime(), otherwise the current time is used. Optional localtime is a flag that when True, interprets timeval, and @@ -155,13 +256,13 @@ def formatdate(timeval=None, localtime=False, usegmt=False): # 2822 requires that day and month names be the English abbreviations. if timeval is None: timeval = time.time() - if localtime or usegmt: - dt = datetime.datetime.fromtimestamp(timeval, datetime.timezone.utc) - else: - dt = datetime.datetime.utcfromtimestamp(timeval) + dt = datetime.datetime.fromtimestamp(timeval, datetime.timezone.utc) + if localtime: dt = dt.astimezone() usegmt = False + elif not usegmt: + dt = dt.replace(tzinfo=None) return format_datetime(dt, usegmt) def format_datetime(dt, usegmt=False): @@ -193,6 +294,11 @@ def make_msgid(idstring=None, domain=None): portion of the message id after the '@'. It defaults to the locally defined hostname. """ + # Lazy imports to speedup module import time + # (no other functions in email.utils need these modules) + import random + import socket + timeval = int(time.time()*100) pid = os.getpid() randint = random.getrandbits(64) @@ -207,17 +313,43 @@ def make_msgid(idstring=None, domain=None): def parsedate_to_datetime(data): - *dtuple, tz = _parsedate_tz(data) + parsed_date_tz = _parsedate_tz(data) + if parsed_date_tz is None: + raise ValueError('Invalid date value or format "%s"' % str(data)) + *dtuple, tz = parsed_date_tz if tz is None: return datetime.datetime(*dtuple[:6]) return datetime.datetime(*dtuple[:6], tzinfo=datetime.timezone(datetime.timedelta(seconds=tz))) -def parseaddr(addr): - addrs = _AddressList(addr).addresslist - if not addrs: - return '', '' +def parseaddr(addr, *, strict=True): + """ + Parse addr into its constituent realname and email address parts. + + Return a tuple of realname and email address, unless the parse fails, in + which case return a 2-tuple of ('', ''). + + If strict is True, use a strict parser which rejects malformed inputs. + """ + if not strict: + addrs = _AddressList(addr).addresslist + if not addrs: + return ('', '') + return addrs[0] + + if isinstance(addr, list): + addr = addr[0] + + if not isinstance(addr, str): + return ('', '') + + addr = _pre_parse_validation([addr])[0] + addrs = _post_parse_validation(_AddressList(addr).addresslist) + + if not addrs or len(addrs) > 1: + return ('', '') + return addrs[0] @@ -265,21 +397,13 @@ def decode_params(params): params is a sequence of 2-tuples containing (param name, string value). """ - # Copy params so we don't mess with the original - params = params[:] - new_params = [] + new_params = [params[0]] # Map parameter's name to a list of continuations. The values are a # 3-tuple of the continuation number, the string value, and a flag # specifying whether a particular segment is %-encoded. rfc2231_params = {} - name, value = params.pop(0) - new_params.append((name, value)) - while params: - name, value = params.pop(0) - if name.endswith('*'): - encoded = True - else: - encoded = False + for name, value in params[1:]: + encoded = name.endswith('*') value = unquote(value) mo = rfc2231_continuation.match(name) if mo: @@ -342,41 +466,23 @@ def collapse_rfc2231_value(value, errors='replace', # better than not having it. # -def localtime(dt=None, isdst=-1): +def localtime(dt=None, isdst=None): """Return local time as an aware datetime object. If called without arguments, return current time. Otherwise *dt* argument should be a datetime instance, and it is converted to the local time zone according to the system time zone database. If *dt* is naive (that is, dt.tzinfo is None), it is assumed to be in local time. - In this case, a positive or zero value for *isdst* causes localtime to - presume initially that summer time (for example, Daylight Saving Time) - is or is not (respectively) in effect for the specified time. A - negative value for *isdst* causes the localtime() function to attempt - to divine whether summer time is in effect for the specified time. + The isdst parameter is ignored. """ + if isdst is not None: + import warnings + warnings._deprecated( + "The 'isdst' parameter to 'localtime'", + message='{name} is deprecated and slated for removal in Python {remove}', + remove=(3, 14), + ) if dt is None: - return datetime.datetime.now(datetime.timezone.utc).astimezone() - if dt.tzinfo is not None: - return dt.astimezone() - # We have a naive datetime. Convert to a (localtime) timetuple and pass to - # system mktime together with the isdst hint. System mktime will return - # seconds since epoch. - tm = dt.timetuple()[:-1] + (isdst,) - seconds = time.mktime(tm) - localtm = time.localtime(seconds) - try: - delta = datetime.timedelta(seconds=localtm.tm_gmtoff) - tz = datetime.timezone(delta, localtm.tm_zone) - except AttributeError: - # Compute UTC offset and compare with the value implied by tm_isdst. - # If the values match, use the zone name implied by tm_isdst. - delta = dt - datetime.datetime(*time.gmtime(seconds)[:6]) - dst = time.daylight and localtm.tm_isdst > 0 - gmtoff = -(time.altzone if dst else time.timezone) - if delta == datetime.timedelta(seconds=gmtoff): - tz = datetime.timezone(delta, time.tzname[dst]) - else: - tz = datetime.timezone(delta) - return dt.replace(tzinfo=tz) + dt = datetime.datetime.now() + return dt.astimezone() diff --git a/Lib/fileinput.py b/Lib/fileinput.py index e234dc9ea6..3dba3d2fbf 100644 --- a/Lib/fileinput.py +++ b/Lib/fileinput.py @@ -53,7 +53,7 @@ sequence must be accessed in strictly sequential order; sequence access and readline() cannot be mixed. -Optional in-place filtering: if the keyword argument inplace=1 is +Optional in-place filtering: if the keyword argument inplace=True is passed to input() or to the FileInput constructor, the file is moved to a backup file and standard output is directed to the input file. This makes it possible to write a filter that rewrites its input file @@ -399,7 +399,7 @@ def isstdin(self): def hook_compressed(filename, mode, *, encoding=None, errors=None): - if encoding is None: # EncodingWarning is emitted in FileInput() already. + if encoding is None and "b" not in mode: # EncodingWarning is emitted in FileInput() already. encoding = "locale" ext = os.path.splitext(filename)[1] if ext == '.gz': diff --git a/Lib/getpass.py b/Lib/getpass.py index 6970d8adfb..bd0097ced9 100644 --- a/Lib/getpass.py +++ b/Lib/getpass.py @@ -18,7 +18,6 @@ import io import os import sys -import warnings __all__ = ["getpass","getuser","GetPassWarning"] @@ -118,6 +117,7 @@ def win_getpass(prompt='Password: ', stream=None): def fallback_getpass(prompt='Password: ', stream=None): + import warnings warnings.warn("Can not control echo on the terminal.", GetPassWarning, stacklevel=2) if not stream: @@ -156,7 +156,11 @@ def getuser(): First try various environment variables, then the password database. This works on Windows as long as USERNAME is set. + Any failure to find a username raises OSError. + .. versionchanged:: 3.13 + Previously, various exceptions beyond just :exc:`OSError` + were raised. """ for name in ('LOGNAME', 'USER', 'LNAME', 'USERNAME'): @@ -164,9 +168,12 @@ def getuser(): if user: return user - # If this fails, the exception will "explain" why - import pwd - return pwd.getpwuid(os.getuid())[0] + try: + import pwd + return pwd.getpwuid(os.getuid())[0] + except (ImportError, KeyError) as e: + raise OSError('No username set in the environment') from e + # Bind the name getpass to the appropriate function try: diff --git a/Lib/graphlib.py b/Lib/graphlib.py index 636545648e..9512865a8e 100644 --- a/Lib/graphlib.py +++ b/Lib/graphlib.py @@ -154,7 +154,7 @@ def done(self, *nodes): This method unblocks any successor of each node in *nodes* for being returned in the future by a call to "get_ready". - Raises :exec:`ValueError` if any node in *nodes* has already been marked as + Raises ValueError if any node in *nodes* has already been marked as processed by a previous call to this method, if a node was not added to the graph by using "add" or if called without calling "prepare" previously or if node has not yet been returned by "get_ready". diff --git a/Lib/gzip.py b/Lib/gzip.py index 5b20e5ba69..1a3c82ce7e 100644 --- a/Lib/gzip.py +++ b/Lib/gzip.py @@ -15,12 +15,16 @@ FTEXT, FHCRC, FEXTRA, FNAME, FCOMMENT = 1, 2, 4, 8, 16 -READ, WRITE = 1, 2 +READ = 'rb' +WRITE = 'wb' _COMPRESS_LEVEL_FAST = 1 _COMPRESS_LEVEL_TRADEOFF = 6 _COMPRESS_LEVEL_BEST = 9 +READ_BUFFER_SIZE = 128 * 1024 +_WRITE_BUFFER_SIZE = 4 * io.DEFAULT_BUFFER_SIZE + def open(filename, mode="rb", compresslevel=_COMPRESS_LEVEL_BEST, encoding=None, errors=None, newline=None): @@ -118,6 +122,21 @@ class BadGzipFile(OSError): """Exception raised in some cases for invalid gzip files.""" +class _WriteBufferStream(io.RawIOBase): + """Minimal object to pass WriteBuffer flushes into GzipFile""" + def __init__(self, gzip_file): + self.gzip_file = gzip_file + + def write(self, data): + return self.gzip_file._write_raw(data) + + def seekable(self): + return False + + def writable(self): + return True + + class GzipFile(_compression.BaseStream): """The GzipFile class simulates most of the methods of a file object with the exception of the truncate() method. @@ -160,9 +179,10 @@ def __init__(self, filename=None, mode=None, and 9 is slowest and produces the most compression. 0 is no compression at all. The default is 9. - The mtime argument is an optional numeric timestamp to be written - to the last modification time field in the stream when compressing. - If omitted or None, the current time is used. + The optional mtime argument is the timestamp requested by gzip. The time + is in Unix format, i.e., seconds since 00:00:00 UTC, January 1, 1970. + If mtime is omitted or None, the current time is used. Use mtime = 0 + to generate a compressed stream that does not depend on creation time. """ @@ -182,6 +202,7 @@ def __init__(self, filename=None, mode=None, if mode is None: mode = getattr(fileobj, 'mode', 'rb') + if mode.startswith('r'): self.mode = READ raw = _GzipReader(fileobj) @@ -204,6 +225,9 @@ def __init__(self, filename=None, mode=None, zlib.DEF_MEM_LEVEL, 0) self._write_mtime = mtime + self._buffer_size = _WRITE_BUFFER_SIZE + self._buffer = io.BufferedWriter(_WriteBufferStream(self), + buffer_size=self._buffer_size) else: raise ValueError("Invalid mode: {!r}".format(mode)) @@ -212,14 +236,6 @@ def __init__(self, filename=None, mode=None, if self.mode == WRITE: self._write_gzip_header(compresslevel) - @property - def filename(self): - import warnings - warnings.warn("use the name attribute", DeprecationWarning, 2) - if self.mode == WRITE and self.name[-3:] != ".gz": - return self.name + ".gz" - return self.name - @property def mtime(self): """Last modification time read from stream, or None""" @@ -237,6 +253,11 @@ def _init_write(self, filename): self.bufsize = 0 self.offset = 0 # Current file offset for seek(), tell(), etc + def tell(self): + self._check_not_closed() + self._buffer.flush() + return super().tell() + def _write_gzip_header(self, compresslevel): self.fileobj.write(b'\037\213') # magic header self.fileobj.write(b'\010') # compression method @@ -278,6 +299,10 @@ def write(self,data): if self.fileobj is None: raise ValueError("write() on closed GzipFile object") + return self._buffer.write(data) + + def _write_raw(self, data): + # Called by our self._buffer underlying WriteBufferStream. if isinstance(data, (bytes, bytearray)): length = len(data) else: @@ -326,11 +351,11 @@ def closed(self): def close(self): fileobj = self.fileobj - if fileobj is None: + if fileobj is None or self._buffer.closed: return - self.fileobj = None try: if self.mode == WRITE: + self._buffer.flush() fileobj.write(self.compress.flush()) write32u(fileobj, self.crc) # self.size may exceed 2 GiB, or even 4 GiB @@ -338,6 +363,7 @@ def close(self): elif self.mode == READ: self._buffer.close() finally: + self.fileobj = None myfileobj = self.myfileobj if myfileobj: self.myfileobj = None @@ -346,6 +372,7 @@ def close(self): def flush(self,zlib_mode=zlib.Z_SYNC_FLUSH): self._check_not_closed() if self.mode == WRITE: + self._buffer.flush() # Ensure the compressor's buffer is flushed self.fileobj.write(self.compress.flush(zlib_mode)) self.fileobj.flush() @@ -376,6 +403,9 @@ def seekable(self): def seek(self, offset, whence=io.SEEK_SET): if self.mode == WRITE: + self._check_not_closed() + # Flush buffer to ensure validity of self.offset + self._buffer.flush() if whence != io.SEEK_SET: if whence == io.SEEK_CUR: offset = self.offset + offset @@ -384,10 +414,10 @@ def seek(self, offset, whence=io.SEEK_SET): if offset < self.offset: raise OSError('Negative seek in write mode') count = offset - self.offset - chunk = b'\0' * 1024 - for i in range(count // 1024): + chunk = b'\0' * self._buffer_size + for i in range(count // self._buffer_size): self.write(chunk) - self.write(b'\0' * (count % 1024)) + self.write(b'\0' * (count % self._buffer_size)) elif self.mode == READ: self._check_not_closed() return self._buffer.seek(offset, whence) @@ -454,7 +484,7 @@ def _read_gzip_header(fp): class _GzipReader(_compression.DecompressReader): def __init__(self, fp): - super().__init__(_PaddedFile(fp), zlib.decompressobj, + super().__init__(_PaddedFile(fp), zlib._ZlibDecompressor, wbits=-zlib.MAX_WBITS) # Set flag indicating start of a new member self._new_member = True @@ -502,12 +532,13 @@ def read(self, size=-1): self._new_member = False # Read a chunk of data from the file - buf = self._fp.read(io.DEFAULT_BUFFER_SIZE) + if self._decompressor.needs_input: + buf = self._fp.read(READ_BUFFER_SIZE) + uncompress = self._decompressor.decompress(buf, size) + else: + uncompress = self._decompressor.decompress(b"", size) - uncompress = self._decompressor.decompress(buf, size) - if self._decompressor.unconsumed_tail != b"": - self._fp.prepend(self._decompressor.unconsumed_tail) - elif self._decompressor.unused_data != b"": + if self._decompressor.unused_data != b"": # Prepend the already read bytes to the fileobj so they can # be seen by _read_eof() and _read_gzip_header() self._fp.prepend(self._decompressor.unused_data) @@ -518,14 +549,11 @@ def read(self, size=-1): raise EOFError("Compressed file ended before the " "end-of-stream marker was reached") - self._add_read_data( uncompress ) + self._crc = zlib.crc32(uncompress, self._crc) + self._stream_size += len(uncompress) self._pos += len(uncompress) return uncompress - def _add_read_data(self, data): - self._crc = zlib.crc32(data, self._crc) - self._stream_size = self._stream_size + len(data) - def _read_eof(self): # We've read to the end of the file # We check that the computed CRC and size of the @@ -552,43 +580,21 @@ def _rewind(self): self._new_member = True -def _create_simple_gzip_header(compresslevel: int, - mtime = None) -> bytes: - """ - Write a simple gzip header with no extra fields. - :param compresslevel: Compresslevel used to determine the xfl bytes. - :param mtime: The mtime (must support conversion to a 32-bit integer). - :return: A bytes object representing the gzip header. - """ - if mtime is None: - mtime = time.time() - if compresslevel == _COMPRESS_LEVEL_BEST: - xfl = 2 - elif compresslevel == _COMPRESS_LEVEL_FAST: - xfl = 4 - else: - xfl = 0 - # Pack ID1 and ID2 magic bytes, method (8=deflate), header flags (no extra - # fields added to header), mtime, xfl and os (255 for unknown OS). - return struct.pack("= 3 and \ - h[0] == ord(b'P') and h[1] in b'14' and h[2] in b' \t\n\r': - return 'pbm' - -tests.append(test_pbm) - -def test_pgm(h, f): - """PGM (portable graymap)""" - if len(h) >= 3 and \ - h[0] == ord(b'P') and h[1] in b'25' and h[2] in b' \t\n\r': - return 'pgm' - -tests.append(test_pgm) - -def test_ppm(h, f): - """PPM (portable pixmap)""" - if len(h) >= 3 and \ - h[0] == ord(b'P') and h[1] in b'36' and h[2] in b' \t\n\r': - return 'ppm' - -tests.append(test_ppm) - -def test_rast(h, f): - """Sun raster file""" - if h.startswith(b'\x59\xA6\x6A\x95'): - return 'rast' - -tests.append(test_rast) - -def test_xbm(h, f): - """X bitmap (X10 or X11)""" - if h.startswith(b'#define '): - return 'xbm' - -tests.append(test_xbm) - -def test_bmp(h, f): - if h.startswith(b'BM'): - return 'bmp' - -tests.append(test_bmp) - -def test_webp(h, f): - if h.startswith(b'RIFF') and h[8:12] == b'WEBP': - return 'webp' - -tests.append(test_webp) - -def test_exr(h, f): - if h.startswith(b'\x76\x2f\x31\x01'): - return 'exr' - -tests.append(test_exr) - -#--------------------# -# Small test program # -#--------------------# - -def test(): - import sys - recursive = 0 - if sys.argv[1:] and sys.argv[1] == '-r': - del sys.argv[1:2] - recursive = 1 - try: - if sys.argv[1:]: - testall(sys.argv[1:], recursive, 1) - else: - testall(['.'], recursive, 1) - except KeyboardInterrupt: - sys.stderr.write('\n[Interrupted]\n') - sys.exit(1) - -def testall(list, recursive, toplevel): - import sys - import os - for filename in list: - if os.path.isdir(filename): - print(filename + '/:', end=' ') - if recursive or toplevel: - print('recursing down:') - import glob - names = glob.glob(os.path.join(glob.escape(filename), '*')) - testall(names, recursive, 0) - else: - print('*** directory (use -r) ***') - else: - print(filename + ':', end=' ') - sys.stdout.flush() - try: - print(what(filename)) - except OSError: - print('*** not found ***') - -if __name__ == '__main__': - test() diff --git a/Lib/imp.py b/Lib/imp.py deleted file mode 100644 index fc42c15765..0000000000 --- a/Lib/imp.py +++ /dev/null @@ -1,346 +0,0 @@ -"""This module provides the components needed to build your own __import__ -function. Undocumented functions are obsolete. - -In most cases it is preferred you consider using the importlib module's -functionality over this module. - -""" -# (Probably) need to stay in _imp -from _imp import (lock_held, acquire_lock, release_lock, - get_frozen_object, is_frozen_package, - init_frozen, is_builtin, is_frozen, - _fix_co_filename, _frozen_module_names) -try: - from _imp import create_dynamic -except ImportError: - # Platform doesn't support dynamic loading. - create_dynamic = None - -from importlib._bootstrap import _ERR_MSG, _exec, _load, _builtin_from_name -from importlib._bootstrap_external import SourcelessFileLoader - -from importlib import machinery -from importlib import util -import importlib -import os -import sys -import tokenize -import types -import warnings - -warnings.warn("the imp module is deprecated in favour of importlib and slated " - "for removal in Python 3.12; " - "see the module's documentation for alternative uses", - DeprecationWarning, stacklevel=2) - -# DEPRECATED -SEARCH_ERROR = 0 -PY_SOURCE = 1 -PY_COMPILED = 2 -C_EXTENSION = 3 -PY_RESOURCE = 4 -PKG_DIRECTORY = 5 -C_BUILTIN = 6 -PY_FROZEN = 7 -PY_CODERESOURCE = 8 -IMP_HOOK = 9 - - -def new_module(name): - """**DEPRECATED** - - Create a new module. - - The module is not entered into sys.modules. - - """ - return types.ModuleType(name) - - -def get_magic(): - """**DEPRECATED** - - Return the magic number for .pyc files. - """ - return util.MAGIC_NUMBER - - -def get_tag(): - """Return the magic tag for .pyc files.""" - return sys.implementation.cache_tag - - -def cache_from_source(path, debug_override=None): - """**DEPRECATED** - - Given the path to a .py file, return the path to its .pyc file. - - The .py file does not need to exist; this simply returns the path to the - .pyc file calculated as if the .py file were imported. - - If debug_override is not None, then it must be a boolean and is used in - place of sys.flags.optimize. - - If sys.implementation.cache_tag is None then NotImplementedError is raised. - - """ - with warnings.catch_warnings(): - warnings.simplefilter('ignore') - return util.cache_from_source(path, debug_override) - - -def source_from_cache(path): - """**DEPRECATED** - - Given the path to a .pyc. file, return the path to its .py file. - - The .pyc file does not need to exist; this simply returns the path to - the .py file calculated to correspond to the .pyc file. If path does - not conform to PEP 3147 format, ValueError will be raised. If - sys.implementation.cache_tag is None then NotImplementedError is raised. - - """ - return util.source_from_cache(path) - - -def get_suffixes(): - """**DEPRECATED**""" - extensions = [(s, 'rb', C_EXTENSION) for s in machinery.EXTENSION_SUFFIXES] - source = [(s, 'r', PY_SOURCE) for s in machinery.SOURCE_SUFFIXES] - bytecode = [(s, 'rb', PY_COMPILED) for s in machinery.BYTECODE_SUFFIXES] - - return extensions + source + bytecode - - -class NullImporter: - - """**DEPRECATED** - - Null import object. - - """ - - def __init__(self, path): - if path == '': - raise ImportError('empty pathname', path='') - elif os.path.isdir(path): - raise ImportError('existing directory', path=path) - - def find_module(self, fullname): - """Always returns None.""" - return None - - -class _HackedGetData: - - """Compatibility support for 'file' arguments of various load_*() - functions.""" - - def __init__(self, fullname, path, file=None): - super().__init__(fullname, path) - self.file = file - - def get_data(self, path): - """Gross hack to contort loader to deal w/ load_*()'s bad API.""" - if self.file and path == self.path: - # The contract of get_data() requires us to return bytes. Reopen the - # file in binary mode if needed. - if not self.file.closed: - file = self.file - if 'b' not in file.mode: - file.close() - if self.file.closed: - self.file = file = open(self.path, 'rb') - - with file: - return file.read() - else: - return super().get_data(path) - - -class _LoadSourceCompatibility(_HackedGetData, machinery.SourceFileLoader): - - """Compatibility support for implementing load_source().""" - - -def load_source(name, pathname, file=None): - loader = _LoadSourceCompatibility(name, pathname, file) - spec = util.spec_from_file_location(name, pathname, loader=loader) - if name in sys.modules: - module = _exec(spec, sys.modules[name]) - else: - module = _load(spec) - # To allow reloading to potentially work, use a non-hacked loader which - # won't rely on a now-closed file object. - module.__loader__ = machinery.SourceFileLoader(name, pathname) - module.__spec__.loader = module.__loader__ - return module - - -class _LoadCompiledCompatibility(_HackedGetData, SourcelessFileLoader): - - """Compatibility support for implementing load_compiled().""" - - -def load_compiled(name, pathname, file=None): - """**DEPRECATED**""" - loader = _LoadCompiledCompatibility(name, pathname, file) - spec = util.spec_from_file_location(name, pathname, loader=loader) - if name in sys.modules: - module = _exec(spec, sys.modules[name]) - else: - module = _load(spec) - # To allow reloading to potentially work, use a non-hacked loader which - # won't rely on a now-closed file object. - module.__loader__ = SourcelessFileLoader(name, pathname) - module.__spec__.loader = module.__loader__ - return module - - -def load_package(name, path): - """**DEPRECATED**""" - if os.path.isdir(path): - extensions = (machinery.SOURCE_SUFFIXES[:] + - machinery.BYTECODE_SUFFIXES[:]) - for extension in extensions: - init_path = os.path.join(path, '__init__' + extension) - if os.path.exists(init_path): - path = init_path - break - else: - raise ValueError('{!r} is not a package'.format(path)) - spec = util.spec_from_file_location(name, path, - submodule_search_locations=[]) - if name in sys.modules: - return _exec(spec, sys.modules[name]) - else: - return _load(spec) - - -def load_module(name, file, filename, details): - """**DEPRECATED** - - Load a module, given information returned by find_module(). - - The module name must include the full package name, if any. - - """ - suffix, mode, type_ = details - if mode and (not mode.startswith('r') or '+' in mode): - raise ValueError('invalid file open mode {!r}'.format(mode)) - elif file is None and type_ in {PY_SOURCE, PY_COMPILED}: - msg = 'file object required for import (type code {})'.format(type_) - raise ValueError(msg) - elif type_ == PY_SOURCE: - return load_source(name, filename, file) - elif type_ == PY_COMPILED: - return load_compiled(name, filename, file) - elif type_ == C_EXTENSION and load_dynamic is not None: - if file is None: - with open(filename, 'rb') as opened_file: - return load_dynamic(name, filename, opened_file) - else: - return load_dynamic(name, filename, file) - elif type_ == PKG_DIRECTORY: - return load_package(name, filename) - elif type_ == C_BUILTIN: - return init_builtin(name) - elif type_ == PY_FROZEN: - return init_frozen(name) - else: - msg = "Don't know how to import {} (type code {})".format(name, type_) - raise ImportError(msg, name=name) - - -def find_module(name, path=None): - """**DEPRECATED** - - Search for a module. - - If path is omitted or None, search for a built-in, frozen or special - module and continue search in sys.path. The module name cannot - contain '.'; to search for a submodule of a package, pass the - submodule name and the package's __path__. - - """ - if not isinstance(name, str): - raise TypeError("'name' must be a str, not {}".format(type(name))) - elif not isinstance(path, (type(None), list)): - # Backwards-compatibility - raise RuntimeError("'path' must be None or a list, " - "not {}".format(type(path))) - - if path is None: - if is_builtin(name): - return None, None, ('', '', C_BUILTIN) - elif is_frozen(name): - return None, None, ('', '', PY_FROZEN) - else: - path = sys.path - - for entry in path: - package_directory = os.path.join(entry, name) - for suffix in ['.py', machinery.BYTECODE_SUFFIXES[0]]: - package_file_name = '__init__' + suffix - file_path = os.path.join(package_directory, package_file_name) - if os.path.isfile(file_path): - return None, package_directory, ('', '', PKG_DIRECTORY) - for suffix, mode, type_ in get_suffixes(): - file_name = name + suffix - file_path = os.path.join(entry, file_name) - if os.path.isfile(file_path): - break - else: - continue - break # Break out of outer loop when breaking out of inner loop. - else: - raise ImportError(_ERR_MSG.format(name), name=name) - - encoding = None - if 'b' not in mode: - with open(file_path, 'rb') as file: - encoding = tokenize.detect_encoding(file.readline)[0] - file = open(file_path, mode, encoding=encoding) - return file, file_path, (suffix, mode, type_) - - -def reload(module): - """**DEPRECATED** - - Reload the module and return it. - - The module must have been successfully imported before. - - """ - return importlib.reload(module) - - -def init_builtin(name): - """**DEPRECATED** - - Load and return a built-in module by name, or None is such module doesn't - exist - """ - try: - return _builtin_from_name(name) - except ImportError: - return None - - -if create_dynamic: - def load_dynamic(name, path, file=None): - """**DEPRECATED** - - Load an extension module. - """ - import importlib.machinery - loader = importlib.machinery.ExtensionFileLoader(name, path) - - # Issue #24748: Skip the sys.modules check in _load_module_shim; - # always load new extension - spec = importlib.machinery.ModuleSpec( - name=name, loader=loader, origin=path) - return _load(spec) - -else: - load_dynamic = None diff --git a/Lib/io.py b/Lib/io.py index e37e81c2bf..c2812876d3 100644 --- a/Lib/io.py +++ b/Lib/io.py @@ -55,11 +55,14 @@ import abc from _io import (DEFAULT_BUFFER_SIZE, BlockingIOError, UnsupportedOperation, - open, open_code, FileIO, BytesIO, StringIO, BufferedReader, + open, open_code, BytesIO, StringIO, BufferedReader, BufferedWriter, BufferedRWPair, BufferedRandom, - # XXX RUSTPYTHON TODO: IncrementalNewlineDecoder - # IncrementalNewlineDecoder, - text_encoding, TextIOWrapper) + IncrementalNewlineDecoder, text_encoding, TextIOWrapper) + +try: + from _io import FileIO +except ImportError: + pass # Pretend this exception was created here. UnsupportedOperation.__module__ = "io" @@ -84,7 +87,10 @@ class BufferedIOBase(_io._BufferedIOBase, IOBase): class TextIOBase(_io._TextIOBase, IOBase): __doc__ = _io._TextIOBase.__doc__ -RawIOBase.register(FileIO) +try: + RawIOBase.register(FileIO) +except NameError: + pass for klass in (BytesIO, BufferedReader, BufferedWriter, BufferedRandom, BufferedRWPair): @@ -100,10 +106,3 @@ class TextIOBase(_io._TextIOBase, IOBase): pass else: RawIOBase.register(_WindowsConsoleIO) - - -# XXX: RUSTPYTHON; borrow IncrementalNewlineDecoder from _pyio -try: - from _pyio import IncrementalNewlineDecoder -except ImportError: - pass diff --git a/Lib/linecache.py b/Lib/linecache.py index 97644a8e37..dc02de19eb 100644 --- a/Lib/linecache.py +++ b/Lib/linecache.py @@ -5,17 +5,13 @@ that name. """ -import functools -import sys -import os -import tokenize - __all__ = ["getline", "clearcache", "checkcache", "lazycache"] # The cache. Maps filenames to either a thunk which will provide source code, # or a tuple (size, mtime, lines, fullname) once loaded. cache = {} +_interactive_cache = {} def clearcache(): @@ -49,28 +45,54 @@ def getlines(filename, module_globals=None): return [] +def _getline_from_code(filename, lineno): + lines = _getlines_from_code(filename) + if 1 <= lineno <= len(lines): + return lines[lineno - 1] + return '' + +def _make_key(code): + return (code.co_filename, code.co_qualname, code.co_firstlineno) + +def _getlines_from_code(code): + code_id = _make_key(code) + if code_id in _interactive_cache: + entry = _interactive_cache[code_id] + if len(entry) != 1: + return _interactive_cache[code_id][2] + return [] + + def checkcache(filename=None): """Discard cache entries that are out of date. (This is not checked upon each call!)""" if filename is None: - filenames = list(cache.keys()) - elif filename in cache: - filenames = [filename] + # get keys atomically + filenames = cache.copy().keys() else: - return + filenames = [filename] for filename in filenames: - entry = cache[filename] + try: + entry = cache[filename] + except KeyError: + continue + if len(entry) == 1: # lazy cache entry, leave it lazy. continue size, mtime, lines, fullname = entry if mtime is None: continue # no-op for files loaded via a __loader__ + try: + # This import can fail if the interpreter is shutting down + import os + except ImportError: + return try: stat = os.stat(fullname) - except OSError: + except (OSError, ValueError): cache.pop(filename, None) continue if size != stat.st_size or mtime != stat.st_mtime: @@ -82,6 +104,17 @@ def updatecache(filename, module_globals=None): If something's wrong, print a message, discard the cache entry, and return an empty list.""" + # These imports are not at top level because linecache is in the critical + # path of the interpreter startup and importing os and sys take a lot of time + # and slows down the startup sequence. + try: + import os + import sys + import tokenize + except ImportError: + # These import can fail if the interpreter is shutting down + return [] + if filename in cache: if len(cache[filename]) != 1: cache.pop(filename, None) @@ -128,16 +161,20 @@ def updatecache(filename, module_globals=None): try: stat = os.stat(fullname) break - except OSError: + except (OSError, ValueError): pass else: return [] + except ValueError: # may be raised by os.stat() + return [] try: with tokenize.open(fullname) as fp: lines = fp.readlines() except (OSError, UnicodeDecodeError, SyntaxError): return [] - if lines and not lines[-1].endswith('\n'): + if not lines: + lines = ['\n'] + elif not lines[-1].endswith('\n'): lines[-1] += '\n' size, mtime = stat.st_size, stat.st_mtime cache[filename] = size, mtime, lines, fullname @@ -166,17 +203,29 @@ def lazycache(filename, module_globals): return False # Try for a __loader__, if available if module_globals and '__name__' in module_globals: - name = module_globals['__name__'] - if (loader := module_globals.get('__loader__')) is None: - if spec := module_globals.get('__spec__'): - try: - loader = spec.loader - except AttributeError: - pass + spec = module_globals.get('__spec__') + name = getattr(spec, 'name', None) or module_globals['__name__'] + loader = getattr(spec, 'loader', None) + if loader is None: + loader = module_globals.get('__loader__') get_source = getattr(loader, 'get_source', None) if name and get_source: - get_lines = functools.partial(get_source, name) + def get_lines(name=name, *args, **kwargs): + return get_source(name, *args, **kwargs) cache[filename] = (get_lines,) return True return False + +def _register_code(code, string, name): + entry = (len(string), + None, + [line + '\n' for line in string.splitlines()], + name) + stack = [code] + while stack: + code = stack.pop() + for const in code.co_consts: + if isinstance(const, type(code)): + stack.append(const) + _interactive_cache[_make_key(code)] = entry diff --git a/Lib/logging/__init__.py b/Lib/logging/__init__.py index 19bd2bc20b..28df075dcd 100644 --- a/Lib/logging/__init__.py +++ b/Lib/logging/__init__.py @@ -1,4 +1,4 @@ -# Copyright 2001-2019 by Vinay Sajip. All Rights Reserved. +# Copyright 2001-2022 by Vinay Sajip. All Rights Reserved. # # Permission to use, copy, modify, and distribute this software and its # documentation for any purpose and without fee is hereby granted, @@ -18,13 +18,14 @@ Logging package for Python. Based on PEP 282 and comments thereto in comp.lang.python. -Copyright (C) 2001-2019 Vinay Sajip. All Rights Reserved. +Copyright (C) 2001-2022 Vinay Sajip. All Rights Reserved. To use, simply 'import logging' and log away! """ import sys, os, time, io, re, traceback, warnings, weakref, collections.abc +from types import GenericAlias from string import Template from string import Formatter as StrFormatter @@ -37,7 +38,8 @@ 'exception', 'fatal', 'getLevelName', 'getLogger', 'getLoggerClass', 'info', 'log', 'makeLogRecord', 'setLoggerClass', 'shutdown', 'warn', 'warning', 'getLogRecordFactory', 'setLogRecordFactory', - 'lastResort', 'raiseExceptions'] + 'lastResort', 'raiseExceptions', 'getLevelNamesMapping', + 'getHandlerByName', 'getHandlerNames'] import threading @@ -63,20 +65,25 @@ raiseExceptions = True # -# If you don't want threading information in the log, set this to zero +# If you don't want threading information in the log, set this to False # logThreads = True # -# If you don't want multiprocessing information in the log, set this to zero +# If you don't want multiprocessing information in the log, set this to False # logMultiprocessing = True # -# If you don't want process information in the log, set this to zero +# If you don't want process information in the log, set this to False # logProcesses = True +# +# If you don't want asyncio task information in the log, set this to False +# +logAsyncioTasks = True + #--------------------------------------------------------------------------- # Level related stuff #--------------------------------------------------------------------------- @@ -116,6 +123,9 @@ 'NOTSET': NOTSET, } +def getLevelNamesMapping(): + return _nameToLevel.copy() + def getLevelName(level): """ Return the textual or numeric representation of logging level 'level'. @@ -156,15 +166,15 @@ def addLevelName(level, levelName): finally: _releaseLock() -if hasattr(sys, '_getframe'): - currentframe = lambda: sys._getframe(3) +if hasattr(sys, "_getframe"): + currentframe = lambda: sys._getframe(1) else: #pragma: no cover def currentframe(): """Return the frame object for the caller's stack frame.""" try: raise Exception - except Exception: - return sys.exc_info()[2].tb_frame.f_back + except Exception as exc: + return exc.__traceback__.tb_frame.f_back # # _srcfile is used when walking the stack to check when we've got the first @@ -181,13 +191,18 @@ def currentframe(): _srcfile = os.path.normcase(addLevelName.__code__.co_filename) # _srcfile is only used in conjunction with sys._getframe(). -# To provide compatibility with older versions of Python, set _srcfile -# to None if _getframe() is not available; this value will prevent -# findCaller() from being called. You can also do this if you want to avoid -# the overhead of fetching caller information, even when _getframe() is -# available. -#if not hasattr(sys, '_getframe'): -# _srcfile = None +# Setting _srcfile to None will prevent findCaller() from being called. This +# way, you can avoid the overhead of fetching caller information. + +# The following is based on warnings._is_internal_frame. It makes sure that +# frames of the import mechanism are skipped when logging at module level and +# using a stacklevel value greater than one. +def _is_internal_frame(frame): + """Signal whether the frame is a CPython or logging module internal.""" + filename = os.path.normcase(frame.f_code.co_filename) + return filename == _srcfile or ( + "importlib" in filename and "_bootstrap" in filename + ) def _checkLevel(level): @@ -307,7 +322,7 @@ def __init__(self, name, level, pathname, lineno, # Thus, while not removing the isinstance check, it does now look # for collections.abc.Mapping rather than, as before, dict. if (args and len(args) == 1 and isinstance(args[0], collections.abc.Mapping) - and args[0]): + and args[0]): args = args[0] self.args = args self.levelname = getLevelName(level) @@ -325,7 +340,7 @@ def __init__(self, name, level, pathname, lineno, self.lineno = lineno self.funcName = func self.created = ct - self.msecs = (ct - int(ct)) * 1000 + self.msecs = int((ct - int(ct)) * 1000) + 0.0 # see gh-89047 self.relativeCreated = (self.created - _startTime) * 1000 if logThreads: self.thread = threading.get_ident() @@ -352,9 +367,18 @@ def __init__(self, name, level, pathname, lineno, else: self.process = None + self.taskName = None + if logAsyncioTasks: + asyncio = sys.modules.get('asyncio') + if asyncio: + try: + self.taskName = asyncio.current_task().get_name() + except Exception: + pass + def __repr__(self): return ''%(self.name, self.levelno, - self.pathname, self.lineno, self.msg) + self.pathname, self.lineno, self.msg) def getMessage(self): """ @@ -487,7 +511,7 @@ def __init__(self, *args, **kwargs): def usesTime(self): fmt = self._fmt - return fmt.find('$asctime') >= 0 or fmt.find(self.asctime_format) >= 0 + return fmt.find('$asctime') >= 0 or fmt.find(self.asctime_search) >= 0 def validate(self): pattern = Template.pattern @@ -557,6 +581,7 @@ class Formatter(object): (typically at application startup time) %(thread)d Thread ID (if available) %(threadName)s Thread name (if available) + %(taskName)s Task name (if available) %(process)d Process ID (if available) %(message)s The result of record.getMessage(), computed just as the record is emitted @@ -583,7 +608,7 @@ def __init__(self, fmt=None, datefmt=None, style='%', validate=True, *, """ if style not in _STYLES: raise ValueError('Style must be one of: %s' % ','.join( - _STYLES.keys())) + _STYLES.keys())) self._style = _STYLES[style][0](fmt, defaults=defaults) if validate: self._style.validate() @@ -808,23 +833,36 @@ def filter(self, record): Determine if a record is loggable by consulting all the filters. The default is to allow the record to be logged; any filter can veto - this and the record is then dropped. Returns a zero value if a record - is to be dropped, else non-zero. + this by returning a false value. + If a filter attached to a handler returns a log record instance, + then that instance is used in place of the original log record in + any further processing of the event by that handler. + If a filter returns any other true value, the original log record + is used in any further processing of the event by that handler. + + If none of the filters return false values, this method returns + a log record. + If any of the filters return a false value, this method returns + a false value. .. versionchanged:: 3.2 Allow filters to be just callables. + + .. versionchanged:: 3.12 + Allow filters to return a LogRecord instead of + modifying it in place. """ - rv = True for f in self.filters: if hasattr(f, 'filter'): result = f.filter(record) else: result = f(record) # assume callable - will raise if not if not result: - rv = False - break - return rv + return False + if isinstance(result, LogRecord): + record = result + return record #--------------------------------------------------------------------------- # Handler classes and functions @@ -845,8 +883,9 @@ def _removeHandlerRef(wr): if acquire and release and handlers: acquire() try: - if wr in handlers: - handlers.remove(wr) + handlers.remove(wr) + except ValueError: + pass finally: release() @@ -860,6 +899,23 @@ def _addHandlerRef(handler): finally: _releaseLock() + +def getHandlerByName(name): + """ + Get a handler with the specified *name*, or None if there isn't one with + that name. + """ + return _handlers.get(name) + + +def getHandlerNames(): + """ + Return all known handler names as an immutable set. + """ + result = set(_handlers.keys()) + return frozenset(result) + + class Handler(Filterer): """ Handler instances dispatch logging events to specific destinations. @@ -958,10 +1014,14 @@ def handle(self, record): Emission depends on filters which may have been added to the handler. Wrap the actual emission of the record with acquisition/release of - the I/O thread lock. Returns whether the filter passed the record for - emission. + the I/O thread lock. + + Returns an instance of the log record that was emitted + if it passed all filters, otherwise a false value is returned. """ rv = self.filter(record) + if isinstance(rv, LogRecord): + record = rv if rv: self.acquire() try: @@ -1032,7 +1092,7 @@ def handleError(self, record): else: # couldn't find the right stack frame, for some reason sys.stderr.write('Logged from file %s, line %s\n' % ( - record.filename, record.lineno)) + record.filename, record.lineno)) # Issue 18671: output logging message and arguments try: sys.stderr.write('Message: %r\n' @@ -1044,7 +1104,7 @@ def handleError(self, record): sys.stderr.write('Unable to print the message and arguments' ' - possible formatting error.\nUse the' ' traceback above to help find the error.\n' - ) + ) except OSError: #pragma: no cover pass # see issue 5971 finally: @@ -1136,6 +1196,8 @@ def __repr__(self): name += ' ' return '<%s %s(%s)>' % (self.__class__.__name__, name, level) + __class_getitem__ = classmethod(GenericAlias) + class FileHandler(StreamHandler): """ @@ -1459,7 +1521,7 @@ def debug(self, msg, *args, **kwargs): To pass exception information, use the keyword argument exc_info with a true value, e.g. - logger.debug("Houston, we have a %s", "thorny problem", exc_info=1) + logger.debug("Houston, we have a %s", "thorny problem", exc_info=True) """ if self.isEnabledFor(DEBUG): self._log(DEBUG, msg, args, **kwargs) @@ -1471,7 +1533,7 @@ def info(self, msg, *args, **kwargs): To pass exception information, use the keyword argument exc_info with a true value, e.g. - logger.info("Houston, we have a %s", "interesting problem", exc_info=1) + logger.info("Houston, we have a %s", "notable problem", exc_info=True) """ if self.isEnabledFor(INFO): self._log(INFO, msg, args, **kwargs) @@ -1483,14 +1545,14 @@ def warning(self, msg, *args, **kwargs): To pass exception information, use the keyword argument exc_info with a true value, e.g. - logger.warning("Houston, we have a %s", "bit of a problem", exc_info=1) + logger.warning("Houston, we have a %s", "bit of a problem", exc_info=True) """ if self.isEnabledFor(WARNING): self._log(WARNING, msg, args, **kwargs) def warn(self, msg, *args, **kwargs): warnings.warn("The 'warn' method is deprecated, " - "use 'warning' instead", DeprecationWarning, 2) + "use 'warning' instead", DeprecationWarning, 2) self.warning(msg, *args, **kwargs) def error(self, msg, *args, **kwargs): @@ -1500,7 +1562,7 @@ def error(self, msg, *args, **kwargs): To pass exception information, use the keyword argument exc_info with a true value, e.g. - logger.error("Houston, we have a %s", "major problem", exc_info=1) + logger.error("Houston, we have a %s", "major problem", exc_info=True) """ if self.isEnabledFor(ERROR): self._log(ERROR, msg, args, **kwargs) @@ -1518,7 +1580,7 @@ def critical(self, msg, *args, **kwargs): To pass exception information, use the keyword argument exc_info with a true value, e.g. - logger.critical("Houston, we have a %s", "major disaster", exc_info=1) + logger.critical("Houston, we have a %s", "major disaster", exc_info=True) """ if self.isEnabledFor(CRITICAL): self._log(CRITICAL, msg, args, **kwargs) @@ -1536,7 +1598,7 @@ def log(self, level, msg, *args, **kwargs): To pass exception information, use the keyword argument exc_info with a true value, e.g. - logger.log(level, "We have a %s", "mysterious problem", exc_info=1) + logger.log(level, "We have a %s", "mysterious problem", exc_info=True) """ if not isinstance(level, int): if raiseExceptions: @@ -1554,33 +1616,31 @@ def findCaller(self, stack_info=False, stacklevel=1): f = currentframe() #On some versions of IronPython, currentframe() returns None if #IronPython isn't run with -X:Frames. - if f is not None: - f = f.f_back - orig_f = f - while f and stacklevel > 1: - f = f.f_back - stacklevel -= 1 - if not f: - f = orig_f - rv = "(unknown file)", 0, "(unknown function)", None - while hasattr(f, "f_code"): - co = f.f_code - filename = os.path.normcase(co.co_filename) - if filename == _srcfile: - f = f.f_back - continue - sinfo = None - if stack_info: - sio = io.StringIO() - sio.write('Stack (most recent call last):\n') + if f is None: + return "(unknown file)", 0, "(unknown function)", None + while stacklevel > 0: + next_f = f.f_back + if next_f is None: + ## We've got options here. + ## If we want to use the last (deepest) frame: + break + ## If we want to mimic the warnings module: + #return ("sys", 1, "(unknown function)", None) + ## If we want to be pedantic: + #raise ValueError("call stack is not deep enough") + f = next_f + if not _is_internal_frame(f): + stacklevel -= 1 + co = f.f_code + sinfo = None + if stack_info: + with io.StringIO() as sio: + sio.write("Stack (most recent call last):\n") traceback.print_stack(f, file=sio) sinfo = sio.getvalue() if sinfo[-1] == '\n': sinfo = sinfo[:-1] - sio.close() - rv = (co.co_filename, f.f_lineno, co.co_name, sinfo) - break - return rv + return co.co_filename, f.f_lineno, co.co_name, sinfo def makeRecord(self, name, level, fn, lno, msg, args, exc_info, func=None, extra=None, sinfo=None): @@ -1589,7 +1649,7 @@ def makeRecord(self, name, level, fn, lno, msg, args, exc_info, specialized LogRecords. """ rv = _logRecordFactory(name, level, fn, lno, msg, args, exc_info, func, - sinfo) + sinfo) if extra is not None: for key in extra: if (key in ["message", "asctime"]) or (key in rv.__dict__): @@ -1630,8 +1690,14 @@ def handle(self, record): This method is used for unpickled records received from a socket, as well as those created locally. Logger-level filtering is applied. """ - if (not self.disabled) and self.filter(record): - self.callHandlers(record) + if self.disabled: + return + maybe_record = self.filter(record) + if not maybe_record: + return + if isinstance(maybe_record, LogRecord): + record = maybe_record + self.callHandlers(record) def addHandler(self, hdlr): """ @@ -1737,7 +1803,7 @@ def isEnabledFor(self, level): is_enabled = self._cache[level] = False else: is_enabled = self._cache[level] = ( - level >= self.getEffectiveLevel() + level >= self.getEffectiveLevel() ) finally: _releaseLock() @@ -1762,13 +1828,30 @@ def getChild(self, suffix): suffix = '.'.join((self.name, suffix)) return self.manager.getLogger(suffix) + def getChildren(self): + + def _hierlevel(logger): + if logger is logger.manager.root: + return 0 + return 1 + logger.name.count('.') + + d = self.manager.loggerDict + _acquireLock() + try: + # exclude PlaceHolders - the last check is to ensure that lower-level + # descendants aren't returned - if there are placeholders, a logger's + # parent field might point to a grandparent or ancestor thereof. + return set(item for item in d.values() + if isinstance(item, Logger) and item.parent is self and + _hierlevel(item) == 1 + _hierlevel(item.parent)) + finally: + _releaseLock() + def __repr__(self): level = getLevelName(self.getEffectiveLevel()) return '<%s %s (%s)>' % (self.__class__.__name__, self.name, level) def __reduce__(self): - # In general, only the root logger will not be accessible via its name. - # However, the root logger's class has its own __reduce__ method. if getLogger(self.name) is not self: import pickle raise pickle.PicklingError('logger cannot be pickled') @@ -1848,7 +1931,7 @@ def warning(self, msg, *args, **kwargs): def warn(self, msg, *args, **kwargs): warnings.warn("The 'warn' method is deprecated, " - "use 'warning' instead", DeprecationWarning, 2) + "use 'warning' instead", DeprecationWarning, 2) self.warning(msg, *args, **kwargs) def error(self, msg, *args, **kwargs): @@ -1902,18 +1985,11 @@ def hasHandlers(self): """ return self.logger.hasHandlers() - def _log(self, level, msg, args, exc_info=None, extra=None, stack_info=False): + def _log(self, level, msg, args, **kwargs): """ Low-level log implementation, proxied to allow nested logger adapters. """ - return self.logger._log( - level, - msg, - args, - exc_info=exc_info, - extra=extra, - stack_info=stack_info, - ) + return self.logger._log(level, msg, args, **kwargs) @property def manager(self): @@ -1932,6 +2008,8 @@ def __repr__(self): level = getLevelName(logger.getEffectiveLevel()) return '<%s %s (%s)>' % (self.__class__.__name__, logger.name, level) + __class_getitem__ = classmethod(GenericAlias) + root = RootLogger(WARNING) Logger.root = root Logger.manager = Manager(Logger.root) @@ -1971,7 +2049,7 @@ def basicConfig(**kwargs): that this argument is incompatible with 'filename' - if both are present, 'stream' is ignored. handlers If specified, this should be an iterable of already created - handlers, which will be added to the root handler. Any handler + handlers, which will be added to the root logger. Any handler in the list which does not have a formatter assigned will be assigned the formatter created in this function. force If this keyword is specified as true, any existing handlers @@ -2047,7 +2125,7 @@ def basicConfig(**kwargs): style = kwargs.pop("style", '%') if style not in _STYLES: raise ValueError('Style must be one of: %s' % ','.join( - _STYLES.keys())) + _STYLES.keys())) fs = kwargs.pop("format", _STYLES[style][1]) fmt = Formatter(fs, dfs, style) for h in handlers: @@ -2124,7 +2202,7 @@ def warning(msg, *args, **kwargs): def warn(msg, *args, **kwargs): warnings.warn("The 'warn' function is deprecated, " - "use 'warning' instead", DeprecationWarning, 2) + "use 'warning' instead", DeprecationWarning, 2) warning(msg, *args, **kwargs) def info(msg, *args, **kwargs): @@ -2179,7 +2257,11 @@ def shutdown(handlerList=_handlerList): if h: try: h.acquire() - h.flush() + # MemoryHandlers might not want to be flushed on close, + # but circular imports prevent us scoping this to just + # those handlers. hence the default to True. + if getattr(h, 'flushOnClose', True): + h.flush() h.close() except (OSError, ValueError): # Ignore errors which might be caused @@ -2242,7 +2324,9 @@ def _showwarning(message, category, filename, lineno, file=None, line=None): logger = getLogger("py.warnings") if not logger.handlers: logger.addHandler(NullHandler()) - logger.warning("%s", s) + # bpo-46557: Log str(s) as msg instead of logger.warning("%s", s) + # since some log aggregation tools group logs by the msg arg + logger.warning(str(s)) def captureWarnings(capture): """ diff --git a/Lib/logging/config.py b/Lib/logging/config.py index 3bc63b7862..ef04a35168 100644 --- a/Lib/logging/config.py +++ b/Lib/logging/config.py @@ -1,4 +1,4 @@ -# Copyright 2001-2019 by Vinay Sajip. All Rights Reserved. +# Copyright 2001-2023 by Vinay Sajip. All Rights Reserved. # # Permission to use, copy, modify, and distribute this software and its # documentation for any purpose and without fee is hereby granted, @@ -19,18 +19,20 @@ is based on PEP 282 and comments thereto in comp.lang.python, and influenced by Apache's log4j system. -Copyright (C) 2001-2019 Vinay Sajip. All Rights Reserved. +Copyright (C) 2001-2022 Vinay Sajip. All Rights Reserved. To use, simply 'import logging' and log away! """ import errno +import functools import io import logging import logging.handlers +import os +import queue import re import struct -import sys import threading import traceback @@ -59,15 +61,24 @@ def fileConfig(fname, defaults=None, disable_existing_loggers=True, encoding=Non """ import configparser + if isinstance(fname, str): + if not os.path.exists(fname): + raise FileNotFoundError(f"{fname} doesn't exist") + elif not os.path.getsize(fname): + raise RuntimeError(f'{fname} is an empty file') + if isinstance(fname, configparser.RawConfigParser): cp = fname else: - cp = configparser.ConfigParser(defaults) - if hasattr(fname, 'readline'): - cp.read_file(fname) - else: - encoding = io.text_encoding(encoding) - cp.read(fname, encoding=encoding) + try: + cp = configparser.ConfigParser(defaults) + if hasattr(fname, 'readline'): + cp.read_file(fname) + else: + encoding = io.text_encoding(encoding) + cp.read(fname, encoding=encoding) + except configparser.ParsingError as e: + raise RuntimeError(f'{fname} is invalid: {e}') formatters = _create_formatters(cp) @@ -113,11 +124,18 @@ def _create_formatters(cp): fs = cp.get(sectname, "format", raw=True, fallback=None) dfs = cp.get(sectname, "datefmt", raw=True, fallback=None) stl = cp.get(sectname, "style", raw=True, fallback='%') + defaults = cp.get(sectname, "defaults", raw=True, fallback=None) + c = logging.Formatter class_name = cp[sectname].get("class") if class_name: c = _resolve(class_name) - f = c(fs, dfs, stl) + + if defaults is not None: + defaults = eval(defaults, vars(logging)) + f = c(fs, dfs, stl, defaults=defaults) + else: + f = c(fs, dfs, stl) formatters[form] = f return formatters @@ -296,7 +314,7 @@ def convert_with_key(self, key, value, replace=True): if replace: self[key] = result if type(result) in (ConvertingDict, ConvertingList, - ConvertingTuple): + ConvertingTuple): result.parent = self result.key = key return result @@ -305,7 +323,7 @@ def convert(self, value): result = self.configurator.convert(value) if value is not result: if type(result) in (ConvertingDict, ConvertingList, - ConvertingTuple): + ConvertingTuple): result.parent = self return result @@ -392,11 +410,9 @@ def resolve(self, s): self.importer(used) found = getattr(found, frag) return found - except ImportError: - e, tb = sys.exc_info()[1:] + except ImportError as e: v = ValueError('Cannot resolve %r: %s' % (s, e)) - v.__cause__, v.__traceback__ = e, tb - raise v + raise v from e def ext_convert(self, value): """Default converter for the ext:// protocol.""" @@ -448,8 +464,8 @@ def convert(self, value): elif not isinstance(value, ConvertingList) and isinstance(value, list): value = ConvertingList(value) value.configurator = self - elif not isinstance(value, ConvertingTuple) and\ - isinstance(value, tuple) and not hasattr(value, '_fields'): + elif not isinstance(value, ConvertingTuple) and \ + isinstance(value, tuple) and not hasattr(value, '_fields'): value = ConvertingTuple(value) value.configurator = self elif isinstance(value, str): # str for py3k @@ -469,10 +485,10 @@ def configure_custom(self, config): c = config.pop('()') if not callable(c): c = self.resolve(c) - props = config.pop('.', None) # Check for valid identifiers - kwargs = {k: config[k] for k in config if valid_ident(k)} + kwargs = {k: config[k] for k in config if (k != '.' and valid_ident(k))} result = c(**kwargs) + props = config.pop('.', None) if props: for name, value in props.items(): setattr(result, name, value) @@ -484,6 +500,33 @@ def as_tuple(self, value): value = tuple(value) return value +def _is_queue_like_object(obj): + """Check that *obj* implements the Queue API.""" + if isinstance(obj, (queue.Queue, queue.SimpleQueue)): + return True + # defer importing multiprocessing as much as possible + from multiprocessing.queues import Queue as MPQueue + if isinstance(obj, MPQueue): + return True + # Depending on the multiprocessing start context, we cannot create + # a multiprocessing.managers.BaseManager instance 'mm' to get the + # runtime type of mm.Queue() or mm.JoinableQueue() (see gh-119819). + # + # Since we only need an object implementing the Queue API, we only + # do a protocol check, but we do not use typing.runtime_checkable() + # and typing.Protocol to reduce import time (see gh-121723). + # + # Ideally, we would have wanted to simply use strict type checking + # instead of a protocol-based type checking since the latter does + # not check the method signatures. + # + # Note that only 'put_nowait' and 'get' are required by the logging + # queue handler and queue listener (see gh-124653) and that other + # methods are either optional or unused. + minimal_queue_interface = ['put_nowait', 'get'] + return all(callable(getattr(obj, method, None)) + for method in minimal_queue_interface) + class DictConfigurator(BaseConfigurator): """ Configure logging using a dictionary-like object to describe the @@ -542,7 +585,7 @@ def configure(self): for name in formatters: try: formatters[name] = self.configure_formatter( - formatters[name]) + formatters[name]) except Exception as e: raise ValueError('Unable to configure ' 'formatter %r' % name) from e @@ -566,7 +609,7 @@ def configure(self): handler.name = name handlers[name] = handler except Exception as e: - if 'target not configured yet' in str(e.__cause__): + if ' not configured yet' in str(e.__cause__): deferred.append(name) else: raise ValueError('Unable to configure handler ' @@ -669,18 +712,27 @@ def configure_formatter(self, config): dfmt = config.get('datefmt', None) style = config.get('style', '%') cname = config.get('class', None) + defaults = config.get('defaults', None) if not cname: c = logging.Formatter else: c = _resolve(cname) + kwargs = {} + + # Add defaults only if it exists. + # Prevents TypeError in custom formatter callables that do not + # accept it. + if defaults is not None: + kwargs['defaults'] = defaults + # A TypeError would be raised if "validate" key is passed in with a formatter callable # that does not accept "validate" as a parameter if 'validate' in config: # if user hasn't mentioned it, the default will be fine - result = c(fmt, dfmt, style, config['validate']) + result = c(fmt, dfmt, style, config['validate'], **kwargs) else: - result = c(fmt, dfmt, style) + result = c(fmt, dfmt, style, **kwargs) return result @@ -697,10 +749,29 @@ def add_filters(self, filterer, filters): """Add filters to a filterer from a list of names.""" for f in filters: try: - filterer.addFilter(self.config['filters'][f]) + if callable(f) or callable(getattr(f, 'filter', None)): + filter_ = f + else: + filter_ = self.config['filters'][f] + filterer.addFilter(filter_) except Exception as e: raise ValueError('Unable to add filter %r' % f) from e + def _configure_queue_handler(self, klass, **kwargs): + if 'queue' in kwargs: + q = kwargs.pop('queue') + else: + q = queue.Queue() # unbounded + + rhl = kwargs.pop('respect_handler_level', False) + lklass = kwargs.pop('listener', logging.handlers.QueueListener) + handlers = kwargs.pop('handlers', []) + + listener = lklass(q, *handlers, respect_handler_level=rhl) + handler = klass(q, **kwargs) + handler.listener = listener + return handler + def configure_handler(self, config): """Configure a handler from a dictionary.""" config_copy = dict(config) # for restoring in case of error @@ -720,28 +791,87 @@ def configure_handler(self, config): factory = c else: cname = config.pop('class') - klass = self.resolve(cname) - #Special case for handler which refers to another handler - if issubclass(klass, logging.handlers.MemoryHandler) and\ - 'target' in config: - try: - th = self.config['handlers'][config['target']] - if not isinstance(th, logging.Handler): - config.update(config_copy) # restore for deferred cfg - raise TypeError('target not configured yet') - config['target'] = th - except Exception as e: - raise ValueError('Unable to set target handler ' - '%r' % config['target']) from e - elif issubclass(klass, logging.handlers.SMTPHandler) and\ - 'mailhost' in config: + if callable(cname): + klass = cname + else: + klass = self.resolve(cname) + if issubclass(klass, logging.handlers.MemoryHandler): + if 'flushLevel' in config: + config['flushLevel'] = logging._checkLevel(config['flushLevel']) + if 'target' in config: + # Special case for handler which refers to another handler + try: + tn = config['target'] + th = self.config['handlers'][tn] + if not isinstance(th, logging.Handler): + config.update(config_copy) # restore for deferred cfg + raise TypeError('target not configured yet') + config['target'] = th + except Exception as e: + raise ValueError('Unable to set target handler %r' % tn) from e + elif issubclass(klass, logging.handlers.QueueHandler): + # Another special case for handler which refers to other handlers + # if 'handlers' not in config: + # raise ValueError('No handlers specified for a QueueHandler') + if 'queue' in config: + qspec = config['queue'] + + if isinstance(qspec, str): + q = self.resolve(qspec) + if not callable(q): + raise TypeError('Invalid queue specifier %r' % qspec) + config['queue'] = q() + elif isinstance(qspec, dict): + if '()' not in qspec: + raise TypeError('Invalid queue specifier %r' % qspec) + config['queue'] = self.configure_custom(dict(qspec)) + elif not _is_queue_like_object(qspec): + raise TypeError('Invalid queue specifier %r' % qspec) + + if 'listener' in config: + lspec = config['listener'] + if isinstance(lspec, type): + if not issubclass(lspec, logging.handlers.QueueListener): + raise TypeError('Invalid listener specifier %r' % lspec) + else: + if isinstance(lspec, str): + listener = self.resolve(lspec) + if isinstance(listener, type) and \ + not issubclass(listener, logging.handlers.QueueListener): + raise TypeError('Invalid listener specifier %r' % lspec) + elif isinstance(lspec, dict): + if '()' not in lspec: + raise TypeError('Invalid listener specifier %r' % lspec) + listener = self.configure_custom(dict(lspec)) + else: + raise TypeError('Invalid listener specifier %r' % lspec) + if not callable(listener): + raise TypeError('Invalid listener specifier %r' % lspec) + config['listener'] = listener + if 'handlers' in config: + hlist = [] + try: + for hn in config['handlers']: + h = self.config['handlers'][hn] + if not isinstance(h, logging.Handler): + config.update(config_copy) # restore for deferred cfg + raise TypeError('Required handler %r ' + 'is not configured yet' % hn) + hlist.append(h) + except Exception as e: + raise ValueError('Unable to set required handler %r' % hn) from e + config['handlers'] = hlist + elif issubclass(klass, logging.handlers.SMTPHandler) and \ + 'mailhost' in config: config['mailhost'] = self.as_tuple(config['mailhost']) - elif issubclass(klass, logging.handlers.SysLogHandler) and\ - 'address' in config: + elif issubclass(klass, logging.handlers.SysLogHandler) and \ + 'address' in config: config['address'] = self.as_tuple(config['address']) - factory = klass - props = config.pop('.', None) - kwargs = {k: config[k] for k in config if valid_ident(k)} + if issubclass(klass, logging.handlers.QueueHandler): + factory = functools.partial(self._configure_queue_handler, klass) + else: + factory = klass + kwargs = {k: config[k] for k in config if (k != '.' and valid_ident(k))} try: result = factory(**kwargs) except TypeError as te: @@ -759,6 +889,7 @@ def configure_handler(self, config): result.setLevel(logging._checkLevel(level)) if filters: self.add_filters(result, filters) + props = config.pop('.', None) if props: for name, value in props.items(): setattr(result, name, value) @@ -794,6 +925,7 @@ def configure_logger(self, name, config, incremental=False): """Configure a non-root logger from a dictionary.""" logger = logging.getLogger(name) self.common_logger_config(logger, config, incremental) + logger.disabled = False propagate = config.get('propagate', None) if propagate is not None: logger.propagate = propagate diff --git a/Lib/logging/handlers.py b/Lib/logging/handlers.py index 61a39958c0..bf42ea1103 100644 --- a/Lib/logging/handlers.py +++ b/Lib/logging/handlers.py @@ -187,15 +187,18 @@ def shouldRollover(self, record): Basically, see if the supplied record would cause the file to exceed the size limit we have. """ - # See bpo-45401: Never rollover anything other than regular files - if os.path.exists(self.baseFilename) and not os.path.isfile(self.baseFilename): - return False if self.stream is None: # delay was set... self.stream = self._open() if self.maxBytes > 0: # are we rolling over? + pos = self.stream.tell() + if not pos: + # gh-116263: Never rollover an empty file + return False msg = "%s\n" % self.format(record) - self.stream.seek(0, 2) #due to non-posix-compliant Windows feature - if self.stream.tell() + len(msg) >= self.maxBytes: + if pos + len(msg) >= self.maxBytes: + # See bpo-45401: Never rollover anything other than regular files + if os.path.exists(self.baseFilename) and not os.path.isfile(self.baseFilename): + return False return True return False @@ -232,19 +235,19 @@ def __init__(self, filename, when='h', interval=1, backupCount=0, if self.when == 'S': self.interval = 1 # one second self.suffix = "%Y-%m-%d_%H-%M-%S" - self.extMatch = r"^\d{4}-\d{2}-\d{2}_\d{2}-\d{2}-\d{2}(\.\w+)?$" + extMatch = r"(?= self.rolloverAt: + # See #89564: Never rollover anything other than regular files + if os.path.exists(self.baseFilename) and not os.path.isfile(self.baseFilename): + # The file is not a regular file, so do not rollover, but do + # set the next rollover time to avoid repeated checks. + self.rolloverAt = self.computeRollover(t) + return False + return True return False @@ -365,32 +382,28 @@ def getFilesToDelete(self): dirName, baseName = os.path.split(self.baseFilename) fileNames = os.listdir(dirName) result = [] - # See bpo-44753: Don't use the extension when computing the prefix. - n, e = os.path.splitext(baseName) - prefix = n + '.' - plen = len(prefix) - for fileName in fileNames: - if self.namer is None: - # Our files will always start with baseName - if not fileName.startswith(baseName): - continue - else: - # Our files could be just about anything after custom naming, but - # likely candidates are of the form - # foo.log.DATETIME_SUFFIX or foo.DATETIME_SUFFIX.log - if (not fileName.startswith(baseName) and fileName.endswith(e) and - len(fileName) > (plen + 1) and not fileName[plen+1].isdigit()): - continue - - if fileName[:plen] == prefix: - suffix = fileName[plen:] - # See bpo-45628: The date/time suffix could be anywhere in the - # filename - parts = suffix.split('.') - for part in parts: - if self.extMatch.match(part): + if self.namer is None: + prefix = baseName + '.' + plen = len(prefix) + for fileName in fileNames: + if fileName[:plen] == prefix: + suffix = fileName[plen:] + if self.extMatch.fullmatch(suffix): + result.append(os.path.join(dirName, fileName)) + else: + for fileName in fileNames: + # Our files could be just about anything after custom naming, + # but they should contain the datetime suffix. + # Try to find the datetime suffix in the file name and verify + # that the file name can be generated by this handler. + m = self.extMatch.search(fileName) + while m: + dfn = self.namer(self.baseFilename + "." + m[0]) + if os.path.basename(dfn) == fileName: result.append(os.path.join(dirName, fileName)) break + m = self.extMatch.search(fileName, m.start() + 1) + if len(result) < self.backupCount: result = [] else: @@ -406,17 +419,14 @@ def doRollover(self): then we have to get a list of matching filenames, sort them and remove the one with the oldest suffix. """ - if self.stream: - self.stream.close() - self.stream = None # get the time that this sequence started at and make it a TimeTuple currentTime = int(time.time()) - dstNow = time.localtime(currentTime)[-1] t = self.rolloverAt - self.interval if self.utc: timeTuple = time.gmtime(t) else: timeTuple = time.localtime(t) + dstNow = time.localtime(currentTime)[-1] dstThen = timeTuple[-1] if dstNow != dstThen: if dstNow: @@ -427,26 +437,19 @@ def doRollover(self): dfn = self.rotation_filename(self.baseFilename + "." + time.strftime(self.suffix, timeTuple)) if os.path.exists(dfn): - os.remove(dfn) + # Already rolled over. + return + + if self.stream: + self.stream.close() + self.stream = None self.rotate(self.baseFilename, dfn) if self.backupCount > 0: for s in self.getFilesToDelete(): os.remove(s) if not self.delay: self.stream = self._open() - newRolloverAt = self.computeRollover(currentTime) - while newRolloverAt <= currentTime: - newRolloverAt = newRolloverAt + self.interval - #If DST changes and midnight or weekly rollover, adjust for this. - if (self.when == 'MIDNIGHT' or self.when.startswith('W')) and not self.utc: - dstAtRollover = time.localtime(newRolloverAt)[-1] - if dstNow != dstAtRollover: - if not dstNow: # DST kicks in before next rollover, so we need to deduct an hour - addend = -3600 - else: # DST bows out before next rollover, so we need to add an hour - addend = 3600 - newRolloverAt += addend - self.rolloverAt = newRolloverAt + self.rolloverAt = self.computeRollover(currentTime) class WatchedFileHandler(logging.FileHandler): """ @@ -800,7 +803,7 @@ class SysLogHandler(logging.Handler): "panic": LOG_EMERG, # DEPRECATED "warn": LOG_WARNING, # DEPRECATED "warning": LOG_WARNING, - } + } facility_names = { "auth": LOG_AUTH, @@ -827,12 +830,10 @@ class SysLogHandler(logging.Handler): "local5": LOG_LOCAL5, "local6": LOG_LOCAL6, "local7": LOG_LOCAL7, - } + } - #The map below appears to be trivially lowercasing the key. However, - #there's more to it than meets the eye - in some locales, lowercasing - #gives unexpected results. See SF #1524081: in the Turkish locale, - #"INFO".lower() != "info" + # Originally added to work around GH-43683. Unnecessary since GH-50043 but kept + # for backwards compatibility. priority_map = { "DEBUG" : "debug", "INFO" : "info", @@ -859,12 +860,49 @@ def __init__(self, address=('localhost', SYSLOG_UDP_PORT), self.address = address self.facility = facility self.socktype = socktype + self.socket = None + self.createSocket() + + def _connect_unixsocket(self, address): + use_socktype = self.socktype + if use_socktype is None: + use_socktype = socket.SOCK_DGRAM + self.socket = socket.socket(socket.AF_UNIX, use_socktype) + try: + self.socket.connect(address) + # it worked, so set self.socktype to the used type + self.socktype = use_socktype + except OSError: + self.socket.close() + if self.socktype is not None: + # user didn't specify falling back, so fail + raise + use_socktype = socket.SOCK_STREAM + self.socket = socket.socket(socket.AF_UNIX, use_socktype) + try: + self.socket.connect(address) + # it worked, so set self.socktype to the used type + self.socktype = use_socktype + except OSError: + self.socket.close() + raise + + def createSocket(self): + """ + Try to create a socket and, if it's not a datagram socket, connect it + to the other end. This method is called during handler initialization, + but it's not regarded as an error if the other end isn't listening yet + --- the method will be called again when emitting an event, + if there is no socket at that point. + """ + address = self.address + socktype = self.socktype if isinstance(address, str): self.unixsocket = True # Syslog server may be unavailable during handler initialisation. # C's openlog() function also ignores connection errors. - # Moreover, we ignore these errors while logging, so it not worse + # Moreover, we ignore these errors while logging, so it's not worse # to ignore it also here. try: self._connect_unixsocket(address) @@ -895,30 +933,6 @@ def __init__(self, address=('localhost', SYSLOG_UDP_PORT), self.socket = sock self.socktype = socktype - def _connect_unixsocket(self, address): - use_socktype = self.socktype - if use_socktype is None: - use_socktype = socket.SOCK_DGRAM - self.socket = socket.socket(socket.AF_UNIX, use_socktype) - try: - self.socket.connect(address) - # it worked, so set self.socktype to the used type - self.socktype = use_socktype - except OSError: - self.socket.close() - if self.socktype is not None: - # user didn't specify falling back, so fail - raise - use_socktype = socket.SOCK_STREAM - self.socket = socket.socket(socket.AF_UNIX, use_socktype) - try: - self.socket.connect(address) - # it worked, so set self.socktype to the used type - self.socktype = use_socktype - except OSError: - self.socket.close() - raise - def encodePriority(self, facility, priority): """ Encode the facility and priority. You can pass in strings or @@ -938,7 +952,10 @@ def close(self): """ self.acquire() try: - self.socket.close() + sock = self.socket + if sock: + self.socket = None + sock.close() logging.Handler.close(self) finally: self.release() @@ -978,6 +995,10 @@ def emit(self, record): # Message is a string. Convert to bytes as required by RFC 5424 msg = msg.encode('utf-8') msg = prio + msg + + if not self.socket: + self.createSocket() + if self.unixsocket: try: self.socket.send(msg) @@ -1094,7 +1115,16 @@ def __init__(self, appname, dllname=None, logtype="Application"): dllname = os.path.join(dllname[0], r'win32service.pyd') self.dllname = dllname self.logtype = logtype - self._welu.AddSourceToRegistry(appname, dllname, logtype) + # Administrative privileges are required to add a source to the registry. + # This may not be available for a user that just wants to add to an + # existing source - handle this specific case. + try: + self._welu.AddSourceToRegistry(appname, dllname, logtype) + except Exception as e: + # This will probably be a pywintypes.error. Only raise if it's not + # an "access denied" error, else let it pass + if getattr(e, 'winerror', None) != 5: # not access denied + raise self.deftype = win32evtlog.EVENTLOG_ERROR_TYPE self.typemap = { logging.DEBUG : win32evtlog.EVENTLOG_INFORMATION_TYPE, @@ -1102,10 +1132,10 @@ def __init__(self, appname, dllname=None, logtype="Application"): logging.WARNING : win32evtlog.EVENTLOG_WARNING_TYPE, logging.ERROR : win32evtlog.EVENTLOG_ERROR_TYPE, logging.CRITICAL: win32evtlog.EVENTLOG_ERROR_TYPE, - } + } except ImportError: - print("The Python Win32 extensions for NT (service, event "\ - "logging) appear not to be available.") + print("The Python Win32 extensions for NT (service, event " \ + "logging) appear not to be available.") self._welu = None def getMessageID(self, record): @@ -1348,7 +1378,7 @@ def shouldFlush(self, record): Check for buffer full or a record at the flushLevel or higher. """ return (len(self.buffer) >= self.capacity) or \ - (record.levelno >= self.flushLevel) + (record.levelno >= self.flushLevel) def setTarget(self, target): """ @@ -1366,7 +1396,7 @@ def flush(self): records to the target, if there is one. Override if you want different behaviour. - The record buffer is also cleared by this operation. + The record buffer is only cleared if a target has been set. """ self.acquire() try: @@ -1411,6 +1441,7 @@ def __init__(self, queue): """ logging.Handler.__init__(self) self.queue = queue + self.listener = None # will be set to listener if configured via dictConfig() def enqueue(self, record): """ @@ -1424,12 +1455,15 @@ def enqueue(self, record): def prepare(self, record): """ - Prepares a record for queuing. The object returned by this method is + Prepare a record for queuing. The object returned by this method is enqueued. - The base implementation formats the record to merge the message - and arguments, and removes unpickleable items from the record - in-place. + The base implementation formats the record to merge the message and + arguments, and removes unpickleable items from the record in-place. + Specifically, it overwrites the record's `msg` and + `message` attributes with the merged message (obtained by + calling the handler's `format` method), and sets the `args`, + `exc_info` and `exc_text` attributes to None. You might want to override this method if you want to convert the record to a dict or JSON string, or send a modified copy @@ -1439,7 +1473,7 @@ def prepare(self, record): # (if there's exception data), and also returns the formatted # message. We can then use this to replace the original # msg + args, as these might be unpickleable. We also zap the - # exc_info and exc_text attributes, as they are no longer + # exc_info, exc_text and stack_info attributes, as they are no longer # needed and, if not None, will typically not be pickleable. msg = self.format(record) # bpo-35726: make copy of record to avoid affecting other handlers in the chain. @@ -1449,6 +1483,7 @@ def prepare(self, record): record.args = None record.exc_info = None record.exc_text = None + record.stack_info = None return record def emit(self, record): diff --git a/Lib/lzma.py b/Lib/lzma.py new file mode 100644 index 0000000000..6668921f00 --- /dev/null +++ b/Lib/lzma.py @@ -0,0 +1,364 @@ +"""Interface to the liblzma compression library. + +This module provides a class for reading and writing compressed files, +classes for incremental (de)compression, and convenience functions for +one-shot (de)compression. + +These classes and functions support both the XZ and legacy LZMA +container formats, as well as raw compressed data streams. +""" + +__all__ = [ + "CHECK_NONE", "CHECK_CRC32", "CHECK_CRC64", "CHECK_SHA256", + "CHECK_ID_MAX", "CHECK_UNKNOWN", + "FILTER_LZMA1", "FILTER_LZMA2", "FILTER_DELTA", "FILTER_X86", "FILTER_IA64", + "FILTER_ARM", "FILTER_ARMTHUMB", "FILTER_POWERPC", "FILTER_SPARC", + "FORMAT_AUTO", "FORMAT_XZ", "FORMAT_ALONE", "FORMAT_RAW", + "MF_HC3", "MF_HC4", "MF_BT2", "MF_BT3", "MF_BT4", + "MODE_FAST", "MODE_NORMAL", "PRESET_DEFAULT", "PRESET_EXTREME", + + "LZMACompressor", "LZMADecompressor", "LZMAFile", "LZMAError", + "open", "compress", "decompress", "is_check_supported", +] + +import builtins +import io +import os +from _lzma import * +from _lzma import _encode_filter_properties, _decode_filter_properties +import _compression + + +# Value 0 no longer used +_MODE_READ = 1 +# Value 2 no longer used +_MODE_WRITE = 3 + + +class LZMAFile(_compression.BaseStream): + + """A file object providing transparent LZMA (de)compression. + + An LZMAFile can act as a wrapper for an existing file object, or + refer directly to a named file on disk. + + Note that LZMAFile provides a *binary* file interface - data read + is returned as bytes, and data to be written must be given as bytes. + """ + + def __init__(self, filename=None, mode="r", *, + format=None, check=-1, preset=None, filters=None): + """Open an LZMA-compressed file in binary mode. + + filename can be either an actual file name (given as a str, + bytes, or PathLike object), in which case the named file is + opened, or it can be an existing file object to read from or + write to. + + mode can be "r" for reading (default), "w" for (over)writing, + "x" for creating exclusively, or "a" for appending. These can + equivalently be given as "rb", "wb", "xb" and "ab" respectively. + + format specifies the container format to use for the file. + If mode is "r", this defaults to FORMAT_AUTO. Otherwise, the + default is FORMAT_XZ. + + check specifies the integrity check to use. This argument can + only be used when opening a file for writing. For FORMAT_XZ, + the default is CHECK_CRC64. FORMAT_ALONE and FORMAT_RAW do not + support integrity checks - for these formats, check must be + omitted, or be CHECK_NONE. + + When opening a file for reading, the *preset* argument is not + meaningful, and should be omitted. The *filters* argument should + also be omitted, except when format is FORMAT_RAW (in which case + it is required). + + When opening a file for writing, the settings used by the + compressor can be specified either as a preset compression + level (with the *preset* argument), or in detail as a custom + filter chain (with the *filters* argument). For FORMAT_XZ and + FORMAT_ALONE, the default is to use the PRESET_DEFAULT preset + level. For FORMAT_RAW, the caller must always specify a filter + chain; the raw compressor does not support preset compression + levels. + + preset (if provided) should be an integer in the range 0-9, + optionally OR-ed with the constant PRESET_EXTREME. + + filters (if provided) should be a sequence of dicts. Each dict + should have an entry for "id" indicating ID of the filter, plus + additional entries for options to the filter. + """ + self._fp = None + self._closefp = False + self._mode = None + + if mode in ("r", "rb"): + if check != -1: + raise ValueError("Cannot specify an integrity check " + "when opening a file for reading") + if preset is not None: + raise ValueError("Cannot specify a preset compression " + "level when opening a file for reading") + if format is None: + format = FORMAT_AUTO + mode_code = _MODE_READ + elif mode in ("w", "wb", "a", "ab", "x", "xb"): + if format is None: + format = FORMAT_XZ + mode_code = _MODE_WRITE + self._compressor = LZMACompressor(format=format, check=check, + preset=preset, filters=filters) + self._pos = 0 + else: + raise ValueError("Invalid mode: {!r}".format(mode)) + + if isinstance(filename, (str, bytes, os.PathLike)): + if "b" not in mode: + mode += "b" + self._fp = builtins.open(filename, mode) + self._closefp = True + self._mode = mode_code + elif hasattr(filename, "read") or hasattr(filename, "write"): + self._fp = filename + self._mode = mode_code + else: + raise TypeError("filename must be a str, bytes, file or PathLike object") + + if self._mode == _MODE_READ: + raw = _compression.DecompressReader(self._fp, LZMADecompressor, + trailing_error=LZMAError, format=format, filters=filters) + self._buffer = io.BufferedReader(raw) + + def close(self): + """Flush and close the file. + + May be called more than once without error. Once the file is + closed, any other operation on it will raise a ValueError. + """ + if self.closed: + return + try: + if self._mode == _MODE_READ: + self._buffer.close() + self._buffer = None + elif self._mode == _MODE_WRITE: + self._fp.write(self._compressor.flush()) + self._compressor = None + finally: + try: + if self._closefp: + self._fp.close() + finally: + self._fp = None + self._closefp = False + + @property + def closed(self): + """True if this file is closed.""" + return self._fp is None + + @property + def name(self): + self._check_not_closed() + return self._fp.name + + @property + def mode(self): + return 'wb' if self._mode == _MODE_WRITE else 'rb' + + def fileno(self): + """Return the file descriptor for the underlying file.""" + self._check_not_closed() + return self._fp.fileno() + + def seekable(self): + """Return whether the file supports seeking.""" + return self.readable() and self._buffer.seekable() + + def readable(self): + """Return whether the file was opened for reading.""" + self._check_not_closed() + return self._mode == _MODE_READ + + def writable(self): + """Return whether the file was opened for writing.""" + self._check_not_closed() + return self._mode == _MODE_WRITE + + def peek(self, size=-1): + """Return buffered data without advancing the file position. + + Always returns at least one byte of data, unless at EOF. + The exact number of bytes returned is unspecified. + """ + self._check_can_read() + # Relies on the undocumented fact that BufferedReader.peek() always + # returns at least one byte (except at EOF) + return self._buffer.peek(size) + + def read(self, size=-1): + """Read up to size uncompressed bytes from the file. + + If size is negative or omitted, read until EOF is reached. + Returns b"" if the file is already at EOF. + """ + self._check_can_read() + return self._buffer.read(size) + + def read1(self, size=-1): + """Read up to size uncompressed bytes, while trying to avoid + making multiple reads from the underlying stream. Reads up to a + buffer's worth of data if size is negative. + + Returns b"" if the file is at EOF. + """ + self._check_can_read() + if size < 0: + size = io.DEFAULT_BUFFER_SIZE + return self._buffer.read1(size) + + def readline(self, size=-1): + """Read a line of uncompressed bytes from the file. + + The terminating newline (if present) is retained. If size is + non-negative, no more than size bytes will be read (in which + case the line may be incomplete). Returns b'' if already at EOF. + """ + self._check_can_read() + return self._buffer.readline(size) + + def write(self, data): + """Write a bytes object to the file. + + Returns the number of uncompressed bytes written, which is + always the length of data in bytes. Note that due to buffering, + the file on disk may not reflect the data written until close() + is called. + """ + self._check_can_write() + if isinstance(data, (bytes, bytearray)): + length = len(data) + else: + # accept any data that supports the buffer protocol + data = memoryview(data) + length = data.nbytes + + compressed = self._compressor.compress(data) + self._fp.write(compressed) + self._pos += length + return length + + def seek(self, offset, whence=io.SEEK_SET): + """Change the file position. + + The new position is specified by offset, relative to the + position indicated by whence. Possible values for whence are: + + 0: start of stream (default): offset must not be negative + 1: current stream position + 2: end of stream; offset must not be positive + + Returns the new file position. + + Note that seeking is emulated, so depending on the parameters, + this operation may be extremely slow. + """ + self._check_can_seek() + return self._buffer.seek(offset, whence) + + def tell(self): + """Return the current file position.""" + self._check_not_closed() + if self._mode == _MODE_READ: + return self._buffer.tell() + return self._pos + + +def open(filename, mode="rb", *, + format=None, check=-1, preset=None, filters=None, + encoding=None, errors=None, newline=None): + """Open an LZMA-compressed file in binary or text mode. + + filename can be either an actual file name (given as a str, bytes, + or PathLike object), in which case the named file is opened, or it + can be an existing file object to read from or write to. + + The mode argument can be "r", "rb" (default), "w", "wb", "x", "xb", + "a", or "ab" for binary mode, or "rt", "wt", "xt", or "at" for text + mode. + + The format, check, preset and filters arguments specify the + compression settings, as for LZMACompressor, LZMADecompressor and + LZMAFile. + + For binary mode, this function is equivalent to the LZMAFile + constructor: LZMAFile(filename, mode, ...). In this case, the + encoding, errors and newline arguments must not be provided. + + For text mode, an LZMAFile object is created, and wrapped in an + io.TextIOWrapper instance with the specified encoding, error + handling behavior, and line ending(s). + + """ + if "t" in mode: + if "b" in mode: + raise ValueError("Invalid mode: %r" % (mode,)) + else: + if encoding is not None: + raise ValueError("Argument 'encoding' not supported in binary mode") + if errors is not None: + raise ValueError("Argument 'errors' not supported in binary mode") + if newline is not None: + raise ValueError("Argument 'newline' not supported in binary mode") + + lz_mode = mode.replace("t", "") + binary_file = LZMAFile(filename, lz_mode, format=format, check=check, + preset=preset, filters=filters) + + if "t" in mode: + encoding = io.text_encoding(encoding) + return io.TextIOWrapper(binary_file, encoding, errors, newline) + else: + return binary_file + + +def compress(data, format=FORMAT_XZ, check=-1, preset=None, filters=None): + """Compress a block of data. + + Refer to LZMACompressor's docstring for a description of the + optional arguments *format*, *check*, *preset* and *filters*. + + For incremental compression, use an LZMACompressor instead. + """ + comp = LZMACompressor(format, check, preset, filters) + return comp.compress(data) + comp.flush() + + +def decompress(data, format=FORMAT_AUTO, memlimit=None, filters=None): + """Decompress a block of data. + + Refer to LZMADecompressor's docstring for a description of the + optional arguments *format*, *check* and *filters*. + + For incremental decompression, use an LZMADecompressor instead. + """ + results = [] + while True: + decomp = LZMADecompressor(format, memlimit, filters) + try: + res = decomp.decompress(data) + except LZMAError: + if results: + break # Leftover data is not a valid LZMA/XZ stream; ignore it. + else: + raise # Error on the first iteration; bail out. + results.append(res) + if not decomp.eof: + raise LZMAError("Compressed data ended before the " + "end-of-stream marker was reached") + data = decomp.unused_data + if not data: + break + return b"".join(results) diff --git a/Lib/nntplib.py b/Lib/nntplib.py deleted file mode 100644 index dddea05998..0000000000 --- a/Lib/nntplib.py +++ /dev/null @@ -1,1093 +0,0 @@ -"""An NNTP client class based on: -- RFC 977: Network News Transfer Protocol -- RFC 2980: Common NNTP Extensions -- RFC 3977: Network News Transfer Protocol (version 2) - -Example: - ->>> from nntplib import NNTP ->>> s = NNTP('news') ->>> resp, count, first, last, name = s.group('comp.lang.python') ->>> print('Group', name, 'has', count, 'articles, range', first, 'to', last) -Group comp.lang.python has 51 articles, range 5770 to 5821 ->>> resp, subs = s.xhdr('subject', '{0}-{1}'.format(first, last)) ->>> resp = s.quit() ->>> - -Here 'resp' is the server response line. -Error responses are turned into exceptions. - -To post an article from a file: ->>> f = open(filename, 'rb') # file containing article, including header ->>> resp = s.post(f) ->>> - -For descriptions of all methods, read the comments in the code below. -Note that all arguments and return values representing article numbers -are strings, not numbers, since they are rarely used for calculations. -""" - -# RFC 977 by Brian Kantor and Phil Lapsley. -# xover, xgtitle, xpath, date methods by Kevan Heydon - -# Incompatible changes from the 2.x nntplib: -# - all commands are encoded as UTF-8 data (using the "surrogateescape" -# error handler), except for raw message data (POST, IHAVE) -# - all responses are decoded as UTF-8 data (using the "surrogateescape" -# error handler), except for raw message data (ARTICLE, HEAD, BODY) -# - the `file` argument to various methods is keyword-only -# -# - NNTP.date() returns a datetime object -# - NNTP.newgroups() and NNTP.newnews() take a datetime (or date) object, -# rather than a pair of (date, time) strings. -# - NNTP.newgroups() and NNTP.list() return a list of GroupInfo named tuples -# - NNTP.descriptions() returns a dict mapping group names to descriptions -# - NNTP.xover() returns a list of dicts mapping field names (header or metadata) -# to field values; each dict representing a message overview. -# - NNTP.article(), NNTP.head() and NNTP.body() return a (response, ArticleInfo) -# tuple. -# - the "internal" methods have been marked private (they now start with -# an underscore) - -# Other changes from the 2.x/3.1 nntplib: -# - automatic querying of capabilities at connect -# - New method NNTP.getcapabilities() -# - New method NNTP.over() -# - New helper function decode_header() -# - NNTP.post() and NNTP.ihave() accept file objects, bytes-like objects and -# arbitrary iterables yielding lines. -# - An extensive test suite :-) - -# TODO: -# - return structured data (GroupInfo etc.) everywhere -# - support HDR - -# Imports -import re -import socket -import collections -import datetime -import sys -import warnings - -try: - import ssl -except ImportError: - _have_ssl = False -else: - _have_ssl = True - -from email.header import decode_header as _email_decode_header -from socket import _GLOBAL_DEFAULT_TIMEOUT - -__all__ = ["NNTP", - "NNTPError", "NNTPReplyError", "NNTPTemporaryError", - "NNTPPermanentError", "NNTPProtocolError", "NNTPDataError", - "decode_header", - ] - -warnings._deprecated(__name__, remove=(3, 13)) - -# maximal line length when calling readline(). This is to prevent -# reading arbitrary length lines. RFC 3977 limits NNTP line length to -# 512 characters, including CRLF. We have selected 2048 just to be on -# the safe side. -_MAXLINE = 2048 - - -# Exceptions raised when an error or invalid response is received -class NNTPError(Exception): - """Base class for all nntplib exceptions""" - def __init__(self, *args): - Exception.__init__(self, *args) - try: - self.response = args[0] - except IndexError: - self.response = 'No response given' - -class NNTPReplyError(NNTPError): - """Unexpected [123]xx reply""" - pass - -class NNTPTemporaryError(NNTPError): - """4xx errors""" - pass - -class NNTPPermanentError(NNTPError): - """5xx errors""" - pass - -class NNTPProtocolError(NNTPError): - """Response does not begin with [1-5]""" - pass - -class NNTPDataError(NNTPError): - """Error in response data""" - pass - - -# Standard port used by NNTP servers -NNTP_PORT = 119 -NNTP_SSL_PORT = 563 - -# Response numbers that are followed by additional text (e.g. article) -_LONGRESP = { - '100', # HELP - '101', # CAPABILITIES - '211', # LISTGROUP (also not multi-line with GROUP) - '215', # LIST - '220', # ARTICLE - '221', # HEAD, XHDR - '222', # BODY - '224', # OVER, XOVER - '225', # HDR - '230', # NEWNEWS - '231', # NEWGROUPS - '282', # XGTITLE -} - -# Default decoded value for LIST OVERVIEW.FMT if not supported -_DEFAULT_OVERVIEW_FMT = [ - "subject", "from", "date", "message-id", "references", ":bytes", ":lines"] - -# Alternative names allowed in LIST OVERVIEW.FMT response -_OVERVIEW_FMT_ALTERNATIVES = { - 'bytes': ':bytes', - 'lines': ':lines', -} - -# Line terminators (we always output CRLF, but accept any of CRLF, CR, LF) -_CRLF = b'\r\n' - -GroupInfo = collections.namedtuple('GroupInfo', - ['group', 'last', 'first', 'flag']) - -ArticleInfo = collections.namedtuple('ArticleInfo', - ['number', 'message_id', 'lines']) - - -# Helper function(s) -def decode_header(header_str): - """Takes a unicode string representing a munged header value - and decodes it as a (possibly non-ASCII) readable value.""" - parts = [] - for v, enc in _email_decode_header(header_str): - if isinstance(v, bytes): - parts.append(v.decode(enc or 'ascii')) - else: - parts.append(v) - return ''.join(parts) - -def _parse_overview_fmt(lines): - """Parse a list of string representing the response to LIST OVERVIEW.FMT - and return a list of header/metadata names. - Raises NNTPDataError if the response is not compliant - (cf. RFC 3977, section 8.4).""" - fmt = [] - for line in lines: - if line[0] == ':': - # Metadata name (e.g. ":bytes") - name, _, suffix = line[1:].partition(':') - name = ':' + name - else: - # Header name (e.g. "Subject:" or "Xref:full") - name, _, suffix = line.partition(':') - name = name.lower() - name = _OVERVIEW_FMT_ALTERNATIVES.get(name, name) - # Should we do something with the suffix? - fmt.append(name) - defaults = _DEFAULT_OVERVIEW_FMT - if len(fmt) < len(defaults): - raise NNTPDataError("LIST OVERVIEW.FMT response too short") - if fmt[:len(defaults)] != defaults: - raise NNTPDataError("LIST OVERVIEW.FMT redefines default fields") - return fmt - -def _parse_overview(lines, fmt, data_process_func=None): - """Parse the response to an OVER or XOVER command according to the - overview format `fmt`.""" - n_defaults = len(_DEFAULT_OVERVIEW_FMT) - overview = [] - for line in lines: - fields = {} - article_number, *tokens = line.split('\t') - article_number = int(article_number) - for i, token in enumerate(tokens): - if i >= len(fmt): - # XXX should we raise an error? Some servers might not - # support LIST OVERVIEW.FMT and still return additional - # headers. - continue - field_name = fmt[i] - is_metadata = field_name.startswith(':') - if i >= n_defaults and not is_metadata: - # Non-default header names are included in full in the response - # (unless the field is totally empty) - h = field_name + ": " - if token and token[:len(h)].lower() != h: - raise NNTPDataError("OVER/XOVER response doesn't include " - "names of additional headers") - token = token[len(h):] if token else None - fields[fmt[i]] = token - overview.append((article_number, fields)) - return overview - -def _parse_datetime(date_str, time_str=None): - """Parse a pair of (date, time) strings, and return a datetime object. - If only the date is given, it is assumed to be date and time - concatenated together (e.g. response to the DATE command). - """ - if time_str is None: - time_str = date_str[-6:] - date_str = date_str[:-6] - hours = int(time_str[:2]) - minutes = int(time_str[2:4]) - seconds = int(time_str[4:]) - year = int(date_str[:-4]) - month = int(date_str[-4:-2]) - day = int(date_str[-2:]) - # RFC 3977 doesn't say how to interpret 2-char years. Assume that - # there are no dates before 1970 on Usenet. - if year < 70: - year += 2000 - elif year < 100: - year += 1900 - return datetime.datetime(year, month, day, hours, minutes, seconds) - -def _unparse_datetime(dt, legacy=False): - """Format a date or datetime object as a pair of (date, time) strings - in the format required by the NEWNEWS and NEWGROUPS commands. If a - date object is passed, the time is assumed to be midnight (00h00). - - The returned representation depends on the legacy flag: - * if legacy is False (the default): - date has the YYYYMMDD format and time the HHMMSS format - * if legacy is True: - date has the YYMMDD format and time the HHMMSS format. - RFC 3977 compliant servers should understand both formats; therefore, - legacy is only needed when talking to old servers. - """ - if not isinstance(dt, datetime.datetime): - time_str = "000000" - else: - time_str = "{0.hour:02d}{0.minute:02d}{0.second:02d}".format(dt) - y = dt.year - if legacy: - y = y % 100 - date_str = "{0:02d}{1.month:02d}{1.day:02d}".format(y, dt) - else: - date_str = "{0:04d}{1.month:02d}{1.day:02d}".format(y, dt) - return date_str, time_str - - -if _have_ssl: - - def _encrypt_on(sock, context, hostname): - """Wrap a socket in SSL/TLS. Arguments: - - sock: Socket to wrap - - context: SSL context to use for the encrypted connection - Returns: - - sock: New, encrypted socket. - """ - # Generate a default SSL context if none was passed. - if context is None: - context = ssl._create_stdlib_context() - return context.wrap_socket(sock, server_hostname=hostname) - - -# The classes themselves -class NNTP: - # UTF-8 is the character set for all NNTP commands and responses: they - # are automatically encoded (when sending) and decoded (and receiving) - # by this class. - # However, some multi-line data blocks can contain arbitrary bytes (for - # example, latin-1 or utf-16 data in the body of a message). Commands - # taking (POST, IHAVE) or returning (HEAD, BODY, ARTICLE) raw message - # data will therefore only accept and produce bytes objects. - # Furthermore, since there could be non-compliant servers out there, - # we use 'surrogateescape' as the error handler for fault tolerance - # and easy round-tripping. This could be useful for some applications - # (e.g. NNTP gateways). - - encoding = 'utf-8' - errors = 'surrogateescape' - - def __init__(self, host, port=NNTP_PORT, user=None, password=None, - readermode=None, usenetrc=False, - timeout=_GLOBAL_DEFAULT_TIMEOUT): - """Initialize an instance. Arguments: - - host: hostname to connect to - - port: port to connect to (default the standard NNTP port) - - user: username to authenticate with - - password: password to use with username - - readermode: if true, send 'mode reader' command after - connecting. - - usenetrc: allow loading username and password from ~/.netrc file - if not specified explicitly - - timeout: timeout (in seconds) used for socket connections - - readermode is sometimes necessary if you are connecting to an - NNTP server on the local machine and intend to call - reader-specific commands, such as `group'. If you get - unexpected NNTPPermanentErrors, you might need to set - readermode. - """ - self.host = host - self.port = port - self.sock = self._create_socket(timeout) - self.file = None - try: - self.file = self.sock.makefile("rwb") - self._base_init(readermode) - if user or usenetrc: - self.login(user, password, usenetrc) - except: - if self.file: - self.file.close() - self.sock.close() - raise - - def _base_init(self, readermode): - """Partial initialization for the NNTP protocol. - This instance method is extracted for supporting the test code. - """ - self.debugging = 0 - self.welcome = self._getresp() - - # Inquire about capabilities (RFC 3977). - self._caps = None - self.getcapabilities() - - # 'MODE READER' is sometimes necessary to enable 'reader' mode. - # However, the order in which 'MODE READER' and 'AUTHINFO' need to - # arrive differs between some NNTP servers. If _setreadermode() fails - # with an authorization failed error, it will set this to True; - # the login() routine will interpret that as a request to try again - # after performing its normal function. - # Enable only if we're not already in READER mode anyway. - self.readermode_afterauth = False - if readermode and 'READER' not in self._caps: - self._setreadermode() - if not self.readermode_afterauth: - # Capabilities might have changed after MODE READER - self._caps = None - self.getcapabilities() - - # RFC 4642 2.2.2: Both the client and the server MUST know if there is - # a TLS session active. A client MUST NOT attempt to start a TLS - # session if a TLS session is already active. - self.tls_on = False - - # Log in and encryption setup order is left to subclasses. - self.authenticated = False - - def __enter__(self): - return self - - def __exit__(self, *args): - is_connected = lambda: hasattr(self, "file") - if is_connected(): - try: - self.quit() - except (OSError, EOFError): - pass - finally: - if is_connected(): - self._close() - - def _create_socket(self, timeout): - if timeout is not None and not timeout: - raise ValueError('Non-blocking socket (timeout=0) is not supported') - sys.audit("nntplib.connect", self, self.host, self.port) - return socket.create_connection((self.host, self.port), timeout) - - def getwelcome(self): - """Get the welcome message from the server - (this is read and squirreled away by __init__()). - If the response code is 200, posting is allowed; - if it 201, posting is not allowed.""" - - if self.debugging: print('*welcome*', repr(self.welcome)) - return self.welcome - - def getcapabilities(self): - """Get the server capabilities, as read by __init__(). - If the CAPABILITIES command is not supported, an empty dict is - returned.""" - if self._caps is None: - self.nntp_version = 1 - self.nntp_implementation = None - try: - resp, caps = self.capabilities() - except (NNTPPermanentError, NNTPTemporaryError): - # Server doesn't support capabilities - self._caps = {} - else: - self._caps = caps - if 'VERSION' in caps: - # The server can advertise several supported versions, - # choose the highest. - self.nntp_version = max(map(int, caps['VERSION'])) - if 'IMPLEMENTATION' in caps: - self.nntp_implementation = ' '.join(caps['IMPLEMENTATION']) - return self._caps - - def set_debuglevel(self, level): - """Set the debugging level. Argument 'level' means: - 0: no debugging output (default) - 1: print commands and responses but not body text etc. - 2: also print raw lines read and sent before stripping CR/LF""" - - self.debugging = level - debug = set_debuglevel - - def _putline(self, line): - """Internal: send one line to the server, appending CRLF. - The `line` must be a bytes-like object.""" - sys.audit("nntplib.putline", self, line) - line = line + _CRLF - if self.debugging > 1: print('*put*', repr(line)) - self.file.write(line) - self.file.flush() - - def _putcmd(self, line): - """Internal: send one command to the server (through _putline()). - The `line` must be a unicode string.""" - if self.debugging: print('*cmd*', repr(line)) - line = line.encode(self.encoding, self.errors) - self._putline(line) - - def _getline(self, strip_crlf=True): - """Internal: return one line from the server, stripping _CRLF. - Raise EOFError if the connection is closed. - Returns a bytes object.""" - line = self.file.readline(_MAXLINE +1) - if len(line) > _MAXLINE: - raise NNTPDataError('line too long') - if self.debugging > 1: - print('*get*', repr(line)) - if not line: raise EOFError - if strip_crlf: - if line[-2:] == _CRLF: - line = line[:-2] - elif line[-1:] in _CRLF: - line = line[:-1] - return line - - def _getresp(self): - """Internal: get a response from the server. - Raise various errors if the response indicates an error. - Returns a unicode string.""" - resp = self._getline() - if self.debugging: print('*resp*', repr(resp)) - resp = resp.decode(self.encoding, self.errors) - c = resp[:1] - if c == '4': - raise NNTPTemporaryError(resp) - if c == '5': - raise NNTPPermanentError(resp) - if c not in '123': - raise NNTPProtocolError(resp) - return resp - - def _getlongresp(self, file=None): - """Internal: get a response plus following text from the server. - Raise various errors if the response indicates an error. - - Returns a (response, lines) tuple where `response` is a unicode - string and `lines` is a list of bytes objects. - If `file` is a file-like object, it must be open in binary mode. - """ - - openedFile = None - try: - # If a string was passed then open a file with that name - if isinstance(file, (str, bytes)): - openedFile = file = open(file, "wb") - - resp = self._getresp() - if resp[:3] not in _LONGRESP: - raise NNTPReplyError(resp) - - lines = [] - if file is not None: - # XXX lines = None instead? - terminators = (b'.' + _CRLF, b'.\n') - while 1: - line = self._getline(False) - if line in terminators: - break - if line.startswith(b'..'): - line = line[1:] - file.write(line) - else: - terminator = b'.' - while 1: - line = self._getline() - if line == terminator: - break - if line.startswith(b'..'): - line = line[1:] - lines.append(line) - finally: - # If this method created the file, then it must close it - if openedFile: - openedFile.close() - - return resp, lines - - def _shortcmd(self, line): - """Internal: send a command and get the response. - Same return value as _getresp().""" - self._putcmd(line) - return self._getresp() - - def _longcmd(self, line, file=None): - """Internal: send a command and get the response plus following text. - Same return value as _getlongresp().""" - self._putcmd(line) - return self._getlongresp(file) - - def _longcmdstring(self, line, file=None): - """Internal: send a command and get the response plus following text. - Same as _longcmd() and _getlongresp(), except that the returned `lines` - are unicode strings rather than bytes objects. - """ - self._putcmd(line) - resp, list = self._getlongresp(file) - return resp, [line.decode(self.encoding, self.errors) - for line in list] - - def _getoverviewfmt(self): - """Internal: get the overview format. Queries the server if not - already done, else returns the cached value.""" - try: - return self._cachedoverviewfmt - except AttributeError: - pass - try: - resp, lines = self._longcmdstring("LIST OVERVIEW.FMT") - except NNTPPermanentError: - # Not supported by server? - fmt = _DEFAULT_OVERVIEW_FMT[:] - else: - fmt = _parse_overview_fmt(lines) - self._cachedoverviewfmt = fmt - return fmt - - def _grouplist(self, lines): - # Parse lines into "group last first flag" - return [GroupInfo(*line.split()) for line in lines] - - def capabilities(self): - """Process a CAPABILITIES command. Not supported by all servers. - Return: - - resp: server response if successful - - caps: a dictionary mapping capability names to lists of tokens - (for example {'VERSION': ['2'], 'OVER': [], LIST: ['ACTIVE', 'HEADERS'] }) - """ - caps = {} - resp, lines = self._longcmdstring("CAPABILITIES") - for line in lines: - name, *tokens = line.split() - caps[name] = tokens - return resp, caps - - def newgroups(self, date, *, file=None): - """Process a NEWGROUPS command. Arguments: - - date: a date or datetime object - Return: - - resp: server response if successful - - list: list of newsgroup names - """ - if not isinstance(date, (datetime.date, datetime.date)): - raise TypeError( - "the date parameter must be a date or datetime object, " - "not '{:40}'".format(date.__class__.__name__)) - date_str, time_str = _unparse_datetime(date, self.nntp_version < 2) - cmd = 'NEWGROUPS {0} {1}'.format(date_str, time_str) - resp, lines = self._longcmdstring(cmd, file) - return resp, self._grouplist(lines) - - def newnews(self, group, date, *, file=None): - """Process a NEWNEWS command. Arguments: - - group: group name or '*' - - date: a date or datetime object - Return: - - resp: server response if successful - - list: list of message ids - """ - if not isinstance(date, (datetime.date, datetime.date)): - raise TypeError( - "the date parameter must be a date or datetime object, " - "not '{:40}'".format(date.__class__.__name__)) - date_str, time_str = _unparse_datetime(date, self.nntp_version < 2) - cmd = 'NEWNEWS {0} {1} {2}'.format(group, date_str, time_str) - return self._longcmdstring(cmd, file) - - def list(self, group_pattern=None, *, file=None): - """Process a LIST or LIST ACTIVE command. Arguments: - - group_pattern: a pattern indicating which groups to query - - file: Filename string or file object to store the result in - Returns: - - resp: server response if successful - - list: list of (group, last, first, flag) (strings) - """ - if group_pattern is not None: - command = 'LIST ACTIVE ' + group_pattern - else: - command = 'LIST' - resp, lines = self._longcmdstring(command, file) - return resp, self._grouplist(lines) - - def _getdescriptions(self, group_pattern, return_all): - line_pat = re.compile('^(?P[^ \t]+)[ \t]+(.*)$') - # Try the more std (acc. to RFC2980) LIST NEWSGROUPS first - resp, lines = self._longcmdstring('LIST NEWSGROUPS ' + group_pattern) - if not resp.startswith('215'): - # Now the deprecated XGTITLE. This either raises an error - # or succeeds with the same output structure as LIST - # NEWSGROUPS. - resp, lines = self._longcmdstring('XGTITLE ' + group_pattern) - groups = {} - for raw_line in lines: - match = line_pat.search(raw_line.strip()) - if match: - name, desc = match.group(1, 2) - if not return_all: - return desc - groups[name] = desc - if return_all: - return resp, groups - else: - # Nothing found - return '' - - def description(self, group): - """Get a description for a single group. If more than one - group matches ('group' is a pattern), return the first. If no - group matches, return an empty string. - - This elides the response code from the server, since it can - only be '215' or '285' (for xgtitle) anyway. If the response - code is needed, use the 'descriptions' method. - - NOTE: This neither checks for a wildcard in 'group' nor does - it check whether the group actually exists.""" - return self._getdescriptions(group, False) - - def descriptions(self, group_pattern): - """Get descriptions for a range of groups.""" - return self._getdescriptions(group_pattern, True) - - def group(self, name): - """Process a GROUP command. Argument: - - group: the group name - Returns: - - resp: server response if successful - - count: number of articles - - first: first article number - - last: last article number - - name: the group name - """ - resp = self._shortcmd('GROUP ' + name) - if not resp.startswith('211'): - raise NNTPReplyError(resp) - words = resp.split() - count = first = last = 0 - n = len(words) - if n > 1: - count = words[1] - if n > 2: - first = words[2] - if n > 3: - last = words[3] - if n > 4: - name = words[4].lower() - return resp, int(count), int(first), int(last), name - - def help(self, *, file=None): - """Process a HELP command. Argument: - - file: Filename string or file object to store the result in - Returns: - - resp: server response if successful - - list: list of strings returned by the server in response to the - HELP command - """ - return self._longcmdstring('HELP', file) - - def _statparse(self, resp): - """Internal: parse the response line of a STAT, NEXT, LAST, - ARTICLE, HEAD or BODY command.""" - if not resp.startswith('22'): - raise NNTPReplyError(resp) - words = resp.split() - art_num = int(words[1]) - message_id = words[2] - return resp, art_num, message_id - - def _statcmd(self, line): - """Internal: process a STAT, NEXT or LAST command.""" - resp = self._shortcmd(line) - return self._statparse(resp) - - def stat(self, message_spec=None): - """Process a STAT command. Argument: - - message_spec: article number or message id (if not specified, - the current article is selected) - Returns: - - resp: server response if successful - - art_num: the article number - - message_id: the message id - """ - if message_spec: - return self._statcmd('STAT {0}'.format(message_spec)) - else: - return self._statcmd('STAT') - - def next(self): - """Process a NEXT command. No arguments. Return as for STAT.""" - return self._statcmd('NEXT') - - def last(self): - """Process a LAST command. No arguments. Return as for STAT.""" - return self._statcmd('LAST') - - def _artcmd(self, line, file=None): - """Internal: process a HEAD, BODY or ARTICLE command.""" - resp, lines = self._longcmd(line, file) - resp, art_num, message_id = self._statparse(resp) - return resp, ArticleInfo(art_num, message_id, lines) - - def head(self, message_spec=None, *, file=None): - """Process a HEAD command. Argument: - - message_spec: article number or message id - - file: filename string or file object to store the headers in - Returns: - - resp: server response if successful - - ArticleInfo: (article number, message id, list of header lines) - """ - if message_spec is not None: - cmd = 'HEAD {0}'.format(message_spec) - else: - cmd = 'HEAD' - return self._artcmd(cmd, file) - - def body(self, message_spec=None, *, file=None): - """Process a BODY command. Argument: - - message_spec: article number or message id - - file: filename string or file object to store the body in - Returns: - - resp: server response if successful - - ArticleInfo: (article number, message id, list of body lines) - """ - if message_spec is not None: - cmd = 'BODY {0}'.format(message_spec) - else: - cmd = 'BODY' - return self._artcmd(cmd, file) - - def article(self, message_spec=None, *, file=None): - """Process an ARTICLE command. Argument: - - message_spec: article number or message id - - file: filename string or file object to store the article in - Returns: - - resp: server response if successful - - ArticleInfo: (article number, message id, list of article lines) - """ - if message_spec is not None: - cmd = 'ARTICLE {0}'.format(message_spec) - else: - cmd = 'ARTICLE' - return self._artcmd(cmd, file) - - def slave(self): - """Process a SLAVE command. Returns: - - resp: server response if successful - """ - return self._shortcmd('SLAVE') - - def xhdr(self, hdr, str, *, file=None): - """Process an XHDR command (optional server extension). Arguments: - - hdr: the header type (e.g. 'subject') - - str: an article nr, a message id, or a range nr1-nr2 - - file: Filename string or file object to store the result in - Returns: - - resp: server response if successful - - list: list of (nr, value) strings - """ - pat = re.compile('^([0-9]+) ?(.*)\n?') - resp, lines = self._longcmdstring('XHDR {0} {1}'.format(hdr, str), file) - def remove_number(line): - m = pat.match(line) - return m.group(1, 2) if m else line - return resp, [remove_number(line) for line in lines] - - def xover(self, start, end, *, file=None): - """Process an XOVER command (optional server extension) Arguments: - - start: start of range - - end: end of range - - file: Filename string or file object to store the result in - Returns: - - resp: server response if successful - - list: list of dicts containing the response fields - """ - resp, lines = self._longcmdstring('XOVER {0}-{1}'.format(start, end), - file) - fmt = self._getoverviewfmt() - return resp, _parse_overview(lines, fmt) - - def over(self, message_spec, *, file=None): - """Process an OVER command. If the command isn't supported, fall - back to XOVER. Arguments: - - message_spec: - - either a message id, indicating the article to fetch - information about - - or a (start, end) tuple, indicating a range of article numbers; - if end is None, information up to the newest message will be - retrieved - - or None, indicating the current article number must be used - - file: Filename string or file object to store the result in - Returns: - - resp: server response if successful - - list: list of dicts containing the response fields - - NOTE: the "message id" form isn't supported by XOVER - """ - cmd = 'OVER' if 'OVER' in self._caps else 'XOVER' - if isinstance(message_spec, (tuple, list)): - start, end = message_spec - cmd += ' {0}-{1}'.format(start, end or '') - elif message_spec is not None: - cmd = cmd + ' ' + message_spec - resp, lines = self._longcmdstring(cmd, file) - fmt = self._getoverviewfmt() - return resp, _parse_overview(lines, fmt) - - def date(self): - """Process the DATE command. - Returns: - - resp: server response if successful - - date: datetime object - """ - resp = self._shortcmd("DATE") - if not resp.startswith('111'): - raise NNTPReplyError(resp) - elem = resp.split() - if len(elem) != 2: - raise NNTPDataError(resp) - date = elem[1] - if len(date) != 14: - raise NNTPDataError(resp) - return resp, _parse_datetime(date, None) - - def _post(self, command, f): - resp = self._shortcmd(command) - # Raises a specific exception if posting is not allowed - if not resp.startswith('3'): - raise NNTPReplyError(resp) - if isinstance(f, (bytes, bytearray)): - f = f.splitlines() - # We don't use _putline() because: - # - we don't want additional CRLF if the file or iterable is already - # in the right format - # - we don't want a spurious flush() after each line is written - for line in f: - if not line.endswith(_CRLF): - line = line.rstrip(b"\r\n") + _CRLF - if line.startswith(b'.'): - line = b'.' + line - self.file.write(line) - self.file.write(b".\r\n") - self.file.flush() - return self._getresp() - - def post(self, data): - """Process a POST command. Arguments: - - data: bytes object, iterable or file containing the article - Returns: - - resp: server response if successful""" - return self._post('POST', data) - - def ihave(self, message_id, data): - """Process an IHAVE command. Arguments: - - message_id: message-id of the article - - data: file containing the article - Returns: - - resp: server response if successful - Note that if the server refuses the article an exception is raised.""" - return self._post('IHAVE {0}'.format(message_id), data) - - def _close(self): - try: - if self.file: - self.file.close() - del self.file - finally: - self.sock.close() - - def quit(self): - """Process a QUIT command and close the socket. Returns: - - resp: server response if successful""" - try: - resp = self._shortcmd('QUIT') - finally: - self._close() - return resp - - def login(self, user=None, password=None, usenetrc=True): - if self.authenticated: - raise ValueError("Already logged in.") - if not user and not usenetrc: - raise ValueError( - "At least one of `user` and `usenetrc` must be specified") - # If no login/password was specified but netrc was requested, - # try to get them from ~/.netrc - # Presume that if .netrc has an entry, NNRP authentication is required. - try: - if usenetrc and not user: - import netrc - credentials = netrc.netrc() - auth = credentials.authenticators(self.host) - if auth: - user = auth[0] - password = auth[2] - except OSError: - pass - # Perform NNTP authentication if needed. - if not user: - return - resp = self._shortcmd('authinfo user ' + user) - if resp.startswith('381'): - if not password: - raise NNTPReplyError(resp) - else: - resp = self._shortcmd('authinfo pass ' + password) - if not resp.startswith('281'): - raise NNTPPermanentError(resp) - # Capabilities might have changed after login - self._caps = None - self.getcapabilities() - # Attempt to send mode reader if it was requested after login. - # Only do so if we're not in reader mode already. - if self.readermode_afterauth and 'READER' not in self._caps: - self._setreadermode() - # Capabilities might have changed after MODE READER - self._caps = None - self.getcapabilities() - - def _setreadermode(self): - try: - self.welcome = self._shortcmd('mode reader') - except NNTPPermanentError: - # Error 5xx, probably 'not implemented' - pass - except NNTPTemporaryError as e: - if e.response.startswith('480'): - # Need authorization before 'mode reader' - self.readermode_afterauth = True - else: - raise - - if _have_ssl: - def starttls(self, context=None): - """Process a STARTTLS command. Arguments: - - context: SSL context to use for the encrypted connection - """ - # Per RFC 4642, STARTTLS MUST NOT be sent after authentication or if - # a TLS session already exists. - if self.tls_on: - raise ValueError("TLS is already enabled.") - if self.authenticated: - raise ValueError("TLS cannot be started after authentication.") - resp = self._shortcmd('STARTTLS') - if resp.startswith('382'): - self.file.close() - self.sock = _encrypt_on(self.sock, context, self.host) - self.file = self.sock.makefile("rwb") - self.tls_on = True - # Capabilities may change after TLS starts up, so ask for them - # again. - self._caps = None - self.getcapabilities() - else: - raise NNTPError("TLS failed to start.") - - -if _have_ssl: - class NNTP_SSL(NNTP): - - def __init__(self, host, port=NNTP_SSL_PORT, - user=None, password=None, ssl_context=None, - readermode=None, usenetrc=False, - timeout=_GLOBAL_DEFAULT_TIMEOUT): - """This works identically to NNTP.__init__, except for the change - in default port and the `ssl_context` argument for SSL connections. - """ - self.ssl_context = ssl_context - super().__init__(host, port, user, password, readermode, - usenetrc, timeout) - - def _create_socket(self, timeout): - sock = super()._create_socket(timeout) - try: - sock = _encrypt_on(sock, self.ssl_context, self.host) - except: - sock.close() - raise - else: - return sock - - __all__.append("NNTP_SSL") - - -# Test retrieval when run as a script. -if __name__ == '__main__': - import argparse - - parser = argparse.ArgumentParser(description="""\ - nntplib built-in demo - display the latest articles in a newsgroup""") - parser.add_argument('-g', '--group', default='gmane.comp.python.general', - help='group to fetch messages from (default: %(default)s)') - parser.add_argument('-s', '--server', default='news.gmane.io', - help='NNTP server hostname (default: %(default)s)') - parser.add_argument('-p', '--port', default=-1, type=int, - help='NNTP port number (default: %s / %s)' % (NNTP_PORT, NNTP_SSL_PORT)) - parser.add_argument('-n', '--nb-articles', default=10, type=int, - help='number of articles to fetch (default: %(default)s)') - parser.add_argument('-S', '--ssl', action='store_true', default=False, - help='use NNTP over SSL') - args = parser.parse_args() - - port = args.port - if not args.ssl: - if port == -1: - port = NNTP_PORT - s = NNTP(host=args.server, port=port) - else: - if port == -1: - port = NNTP_SSL_PORT - s = NNTP_SSL(host=args.server, port=port) - - caps = s.getcapabilities() - if 'STARTTLS' in caps: - s.starttls() - resp, count, first, last, name = s.group(args.group) - print('Group', name, 'has', count, 'articles, range', first, 'to', last) - - def cut(s, lim): - if len(s) > lim: - s = s[:lim - 4] + "..." - return s - - first = str(int(last) - args.nb_articles + 1) - resp, overviews = s.xover(first, last) - for artnum, over in overviews: - author = decode_header(over['from']).split('<', 1)[0] - subject = decode_header(over['subject']) - lines = int(over[':lines']) - print("{:7} {:20} {:42} ({})".format( - artnum, cut(author, 20), cut(subject, 42), lines) - ) - - s.quit() diff --git a/Lib/numbers.py b/Lib/numbers.py index 0985dd85f6..a2913e32cf 100644 --- a/Lib/numbers.py +++ b/Lib/numbers.py @@ -5,6 +5,31 @@ TODO: Fill out more detailed documentation on the operators.""" +############ Maintenance notes ######################################### +# +# ABCs are different from other standard library modules in that they +# specify compliance tests. In general, once an ABC has been published, +# new methods (either abstract or concrete) cannot be added. +# +# Though classes that inherit from an ABC would automatically receive a +# new mixin method, registered classes would become non-compliant and +# violate the contract promised by ``isinstance(someobj, SomeABC)``. +# +# Though irritating, the correct procedure for adding new abstract or +# mixin methods is to create a new ABC as a subclass of the previous +# ABC. +# +# Because they are so hard to change, new ABCs should have their APIs +# carefully thought through prior to publication. +# +# Since ABCMeta only checks for the presence of methods, it is possible +# to alter the signature of a method by adding optional arguments +# or changing parameter names. This is still a bit dubious but at +# least it won't cause isinstance() to return an incorrect result. +# +# +####################################################################### + from abc import ABCMeta, abstractmethod __all__ = ["Number", "Complex", "Real", "Rational", "Integral"] @@ -118,7 +143,7 @@ def __rtruediv__(self, other): @abstractmethod def __pow__(self, exponent): - """self**exponent; should promote to float or complex when necessary.""" + """self ** exponent; should promote to float or complex when necessary.""" raise NotImplementedError @abstractmethod @@ -167,7 +192,7 @@ def __trunc__(self): """trunc(self): Truncates self to an Integral. Returns an Integral i such that: - * i>0 iff self>0; + * i > 0 iff self > 0; * abs(i) <= abs(self); * for any Integral j satisfying the first two conditions, abs(i) >= abs(j) [i.e. i has "maximal" abs among those]. @@ -203,7 +228,7 @@ def __divmod__(self, other): return (self // other, self % other) def __rdivmod__(self, other): - """divmod(other, self): The pair (self // other, self % other). + """divmod(other, self): The pair (other // self, other % self). Sometimes this can be computed faster than the pair of operations. diff --git a/Lib/pkgutil.py b/Lib/pkgutil.py index 8e010c79c1..a4c474006b 100644 --- a/Lib/pkgutil.py +++ b/Lib/pkgutil.py @@ -184,188 +184,6 @@ def _iter_file_finder_modules(importer, prefix=''): iter_importer_modules.register( importlib.machinery.FileFinder, _iter_file_finder_modules) - -def _import_imp(): - global imp - with warnings.catch_warnings(): - warnings.simplefilter('ignore', DeprecationWarning) - imp = importlib.import_module('imp') - -class ImpImporter: - """PEP 302 Finder that wraps Python's "classic" import algorithm - - ImpImporter(dirname) produces a PEP 302 finder that searches that - directory. ImpImporter(None) produces a PEP 302 finder that searches - the current sys.path, plus any modules that are frozen or built-in. - - Note that ImpImporter does not currently support being used by placement - on sys.meta_path. - """ - - def __init__(self, path=None): - global imp - warnings.warn("This emulation is deprecated and slated for removal " - "in Python 3.12; use 'importlib' instead", - DeprecationWarning) - _import_imp() - self.path = path - - def find_module(self, fullname, path=None): - # Note: we ignore 'path' argument since it is only used via meta_path - subname = fullname.split(".")[-1] - if subname != fullname and self.path is None: - return None - if self.path is None: - path = None - else: - path = [os.path.realpath(self.path)] - try: - file, filename, etc = imp.find_module(subname, path) - except ImportError: - return None - return ImpLoader(fullname, file, filename, etc) - - def iter_modules(self, prefix=''): - if self.path is None or not os.path.isdir(self.path): - return - - yielded = {} - import inspect - try: - filenames = os.listdir(self.path) - except OSError: - # ignore unreadable directories like import does - filenames = [] - filenames.sort() # handle packages before same-named modules - - for fn in filenames: - modname = inspect.getmodulename(fn) - if modname=='__init__' or modname in yielded: - continue - - path = os.path.join(self.path, fn) - ispkg = False - - if not modname and os.path.isdir(path) and '.' not in fn: - modname = fn - try: - dircontents = os.listdir(path) - except OSError: - # ignore unreadable directories like import does - dircontents = [] - for fn in dircontents: - subname = inspect.getmodulename(fn) - if subname=='__init__': - ispkg = True - break - else: - continue # not a package - - if modname and '.' not in modname: - yielded[modname] = 1 - yield prefix + modname, ispkg - - -class ImpLoader: - """PEP 302 Loader that wraps Python's "classic" import algorithm - """ - code = source = None - - def __init__(self, fullname, file, filename, etc): - warnings.warn("This emulation is deprecated and slated for removal in " - "Python 3.12; use 'importlib' instead", - DeprecationWarning) - _import_imp() - self.file = file - self.filename = filename - self.fullname = fullname - self.etc = etc - - def load_module(self, fullname): - self._reopen() - try: - mod = imp.load_module(fullname, self.file, self.filename, self.etc) - finally: - if self.file: - self.file.close() - # Note: we don't set __loader__ because we want the module to look - # normal; i.e. this is just a wrapper for standard import machinery - return mod - - def get_data(self, pathname): - with open(pathname, "rb") as file: - return file.read() - - def _reopen(self): - if self.file and self.file.closed: - mod_type = self.etc[2] - if mod_type==imp.PY_SOURCE: - self.file = open(self.filename, 'r') - elif mod_type in (imp.PY_COMPILED, imp.C_EXTENSION): - self.file = open(self.filename, 'rb') - - def _fix_name(self, fullname): - if fullname is None: - fullname = self.fullname - elif fullname != self.fullname: - raise ImportError("Loader for module %s cannot handle " - "module %s" % (self.fullname, fullname)) - return fullname - - def is_package(self, fullname): - fullname = self._fix_name(fullname) - return self.etc[2]==imp.PKG_DIRECTORY - - def get_code(self, fullname=None): - fullname = self._fix_name(fullname) - if self.code is None: - mod_type = self.etc[2] - if mod_type==imp.PY_SOURCE: - source = self.get_source(fullname) - self.code = compile(source, self.filename, 'exec') - elif mod_type==imp.PY_COMPILED: - self._reopen() - try: - self.code = read_code(self.file) - finally: - self.file.close() - elif mod_type==imp.PKG_DIRECTORY: - self.code = self._get_delegate().get_code() - return self.code - - def get_source(self, fullname=None): - fullname = self._fix_name(fullname) - if self.source is None: - mod_type = self.etc[2] - if mod_type==imp.PY_SOURCE: - self._reopen() - try: - self.source = self.file.read() - finally: - self.file.close() - elif mod_type==imp.PY_COMPILED: - if os.path.exists(self.filename[:-1]): - with open(self.filename[:-1], 'r') as f: - self.source = f.read() - elif mod_type==imp.PKG_DIRECTORY: - self.source = self._get_delegate().get_source() - return self.source - - def _get_delegate(self): - finder = ImpImporter(self.filename) - spec = _get_spec(finder, '__init__') - return spec.loader - - def get_filename(self, fullname=None): - fullname = self._fix_name(fullname) - mod_type = self.etc[2] - if mod_type==imp.PKG_DIRECTORY: - return self._get_delegate().get_filename() - elif mod_type in (imp.PY_SOURCE, imp.PY_COMPILED, imp.C_EXTENSION): - return self.filename - return None - - try: import zipimport from zipimport import zipimporter diff --git a/Lib/pprint.py b/Lib/pprint.py index 34ed12637e..9314701db3 100644 --- a/Lib/pprint.py +++ b/Lib/pprint.py @@ -128,6 +128,9 @@ def __init__(self, indent=1, width=80, depth=None, stream=None, *, sort_dicts If true, dict keys are sorted. + underscore_numbers + If true, digit groups are separated with underscores. + """ indent = int(indent) width = int(width) diff --git a/Lib/queue.py b/Lib/queue.py index 55f5008846..25beb46e30 100644 --- a/Lib/queue.py +++ b/Lib/queue.py @@ -10,7 +10,15 @@ except ImportError: SimpleQueue = None -__all__ = ['Empty', 'Full', 'Queue', 'PriorityQueue', 'LifoQueue', 'SimpleQueue'] +__all__ = [ + 'Empty', + 'Full', + 'ShutDown', + 'Queue', + 'PriorityQueue', + 'LifoQueue', + 'SimpleQueue', +] try: @@ -25,6 +33,10 @@ class Full(Exception): pass +class ShutDown(Exception): + '''Raised when put/get with shut-down queue.''' + + class Queue: '''Create a queue object with a given maximum size. @@ -54,6 +66,9 @@ def __init__(self, maxsize=0): self.all_tasks_done = threading.Condition(self.mutex) self.unfinished_tasks = 0 + # Queue shutdown state + self.is_shutdown = False + def task_done(self): '''Indicate that a formerly enqueued task is complete. @@ -65,6 +80,9 @@ def task_done(self): have been processed (meaning that a task_done() call was received for every item that had been put() into the queue). + shutdown(immediate=True) calls task_done() for each remaining item in + the queue. + Raises a ValueError if called more times than there were items placed in the queue. ''' @@ -129,8 +147,12 @@ def put(self, item, block=True, timeout=None): Otherwise ('block' is false), put an item on the queue if a free slot is immediately available, else raise the Full exception ('timeout' is ignored in that case). + + Raises ShutDown if the queue has been shut down. ''' with self.not_full: + if self.is_shutdown: + raise ShutDown if self.maxsize > 0: if not block: if self._qsize() >= self.maxsize: @@ -138,6 +160,8 @@ def put(self, item, block=True, timeout=None): elif timeout is None: while self._qsize() >= self.maxsize: self.not_full.wait() + if self.is_shutdown: + raise ShutDown elif timeout < 0: raise ValueError("'timeout' must be a non-negative number") else: @@ -147,6 +171,8 @@ def put(self, item, block=True, timeout=None): if remaining <= 0.0: raise Full self.not_full.wait(remaining) + if self.is_shutdown: + raise ShutDown self._put(item) self.unfinished_tasks += 1 self.not_empty.notify() @@ -161,14 +187,21 @@ def get(self, block=True, timeout=None): Otherwise ('block' is false), return an item if one is immediately available, else raise the Empty exception ('timeout' is ignored in that case). + + Raises ShutDown if the queue has been shut down and is empty, + or if the queue has been shut down immediately. ''' with self.not_empty: + if self.is_shutdown and not self._qsize(): + raise ShutDown if not block: if not self._qsize(): raise Empty elif timeout is None: while not self._qsize(): self.not_empty.wait() + if self.is_shutdown and not self._qsize(): + raise ShutDown elif timeout < 0: raise ValueError("'timeout' must be a non-negative number") else: @@ -178,6 +211,8 @@ def get(self, block=True, timeout=None): if remaining <= 0.0: raise Empty self.not_empty.wait(remaining) + if self.is_shutdown and not self._qsize(): + raise ShutDown item = self._get() self.not_full.notify() return item @@ -198,6 +233,29 @@ def get_nowait(self): ''' return self.get(block=False) + def shutdown(self, immediate=False): + '''Shut-down the queue, making queue gets and puts raise ShutDown. + + By default, gets will only raise once the queue is empty. Set + 'immediate' to True to make gets raise immediately instead. + + All blocked callers of put() and get() will be unblocked. If + 'immediate', a task is marked as done for each item remaining in + the queue, which may unblock callers of join(). + ''' + with self.mutex: + self.is_shutdown = True + if immediate: + while self._qsize(): + self._get() + if self.unfinished_tasks > 0: + self.unfinished_tasks -= 1 + # release all blocked threads in `join()` + self.all_tasks_done.notify_all() + # All getters need to re-check queue-empty to raise ShutDown + self.not_empty.notify_all() + self.not_full.notify_all() + # Override these methods to implement other queue organizations # (e.g. stack or priority queue). # These will only be called with appropriate locks held diff --git a/Lib/random.py b/Lib/random.py index 85bad08d57..36e3925811 100644 --- a/Lib/random.py +++ b/Lib/random.py @@ -32,6 +32,11 @@ circular uniform von Mises + discrete distributions + ---------------------- + binomial + + General notes on the underlying Mersenne Twister core generator: * The period is 2**19937-1. @@ -49,6 +54,7 @@ from math import log as _log, exp as _exp, pi as _pi, e as _e, ceil as _ceil from math import sqrt as _sqrt, acos as _acos, cos as _cos, sin as _sin from math import tau as TWOPI, floor as _floor, isfinite as _isfinite +from math import lgamma as _lgamma, fabs as _fabs, log2 as _log2 try: from os import urandom as _urandom except ImportError: @@ -72,7 +78,7 @@ def _urandom(*args, **kwargs): try: # hashlib is pretty heavy to load, try lean internal module first - from _sha512 import sha512 as _sha512 + from _sha2 import sha512 as _sha512 except ImportError: # fallback to official implementation from hashlib import sha512 as _sha512 @@ -81,6 +87,7 @@ def _urandom(*args, **kwargs): "Random", "SystemRandom", "betavariate", + "binomialvariate", "choice", "choices", "expovariate", @@ -249,7 +256,7 @@ def _randbelow_with_getrandbits(self, n): "Return a random int in the range [0,n). Defined for n > 0." getrandbits = self.getrandbits - k = n.bit_length() # don't use (n-1) here because n can be 1 + k = n.bit_length() r = getrandbits(k) # 0 <= r < 2**k while r >= n: r = getrandbits(k) @@ -304,58 +311,25 @@ def randrange(self, start, stop=None, step=_ONE): # This code is a bit messy to make it fast for the # common case while still doing adequate error checking. - try: - istart = _index(start) - except TypeError: - istart = int(start) - if istart != start: - _warn('randrange() will raise TypeError in the future', - DeprecationWarning, 2) - raise ValueError("non-integer arg 1 for randrange()") - _warn('non-integer arguments to randrange() have been deprecated ' - 'since Python 3.10 and will be removed in a subsequent ' - 'version', - DeprecationWarning, 2) + istart = _index(start) if stop is None: # We don't check for "step != 1" because it hasn't been # type checked and converted to an integer yet. if step is not _ONE: - raise TypeError('Missing a non-None stop argument') + raise TypeError("Missing a non-None stop argument") if istart > 0: return self._randbelow(istart) raise ValueError("empty range for randrange()") - # stop argument supplied. - try: - istop = _index(stop) - except TypeError: - istop = int(stop) - if istop != stop: - _warn('randrange() will raise TypeError in the future', - DeprecationWarning, 2) - raise ValueError("non-integer stop for randrange()") - _warn('non-integer arguments to randrange() have been deprecated ' - 'since Python 3.10 and will be removed in a subsequent ' - 'version', - DeprecationWarning, 2) + # Stop argument supplied. + istop = _index(stop) width = istop - istart - try: - istep = _index(step) - except TypeError: - istep = int(step) - if istep != step: - _warn('randrange() will raise TypeError in the future', - DeprecationWarning, 2) - raise ValueError("non-integer step for randrange()") - _warn('non-integer arguments to randrange() have been deprecated ' - 'since Python 3.10 and will be removed in a subsequent ' - 'version', - DeprecationWarning, 2) + istep = _index(step) # Fast path. if istep == 1: if width > 0: return istart + self._randbelow(width) - raise ValueError("empty range for randrange() (%d, %d, %d)" % (istart, istop, width)) + raise ValueError(f"empty range in randrange({start}, {stop})") # Non-unit step argument supplied. if istep > 0: @@ -365,7 +339,7 @@ def randrange(self, start, stop=None, step=_ONE): else: raise ValueError("zero step for randrange()") if n <= 0: - raise ValueError("empty range for randrange()") + raise ValueError(f"empty range in randrange({start}, {stop}, {step})") return istart + istep * self._randbelow(n) def randint(self, a, b): @@ -531,7 +505,14 @@ def choices(self, population, weights=None, *, cum_weights=None, k=1): ## -------------------- real-valued distributions ------------------- def uniform(self, a, b): - "Get a random number in the range [a, b) or [a, b] depending on rounding." + """Get a random number in the range [a, b) or [a, b] depending on rounding. + + The mean (expected value) and variance of the random variable are: + + E[X] = (a + b) / 2 + Var[X] = (b - a) ** 2 / 12 + + """ return a + (b - a) * self.random() def triangular(self, low=0.0, high=1.0, mode=None): @@ -542,6 +523,11 @@ def triangular(self, low=0.0, high=1.0, mode=None): http://en.wikipedia.org/wiki/Triangular_distribution + The mean (expected value) and variance of the random variable are: + + E[X] = (low + high + mode) / 3 + Var[X] = (low**2 + high**2 + mode**2 - low*high - low*mode - high*mode) / 18 + """ u = self.random() try: @@ -623,7 +609,7 @@ def lognormvariate(self, mu, sigma): """ return _exp(self.normalvariate(mu, sigma)) - def expovariate(self, lambd): + def expovariate(self, lambd=1.0): """Exponential distribution. lambd is 1.0 divided by the desired mean. It should be @@ -632,12 +618,15 @@ def expovariate(self, lambd): positive infinity if lambd is positive, and from negative infinity to 0 if lambd is negative. - """ - # lambd: rate lambd = 1/mean - # ('lambda' is a Python reserved word) + The mean (expected value) and variance of the random variable are: + E[X] = 1 / lambd + Var[X] = 1 / lambd ** 2 + + """ # we use 1-random() instead of random() to preclude the # possibility of taking the log of zero. + return -_log(1.0 - self.random()) / lambd def vonmisesvariate(self, mu, kappa): @@ -693,8 +682,12 @@ def gammavariate(self, alpha, beta): pdf(x) = -------------------------------------- math.gamma(alpha) * beta ** alpha + The mean (expected value) and variance of the random variable are: + + E[X] = alpha * beta + Var[X] = alpha * beta ** 2 + """ - # alpha > 0, beta > 0, mean is alpha*beta, variance is alpha*beta**2 # Warning: a few older sources define the gamma distribution in terms # of alpha > -1.0 @@ -753,6 +746,11 @@ def betavariate(self, alpha, beta): Conditions on the parameters are alpha > 0 and beta > 0. Returned values range between 0 and 1. + The mean (expected value) and variance of the random variable are: + + E[X] = alpha / (alpha + beta) + Var[X] = alpha * beta / ((alpha + beta)**2 * (alpha + beta + 1)) + """ ## See ## http://mail.python.org/pipermail/python-bugs-list/2001-January/003752.html @@ -793,6 +791,97 @@ def weibullvariate(self, alpha, beta): return alpha * (-_log(u)) ** (1.0 / beta) + ## -------------------- discrete distributions --------------------- + + def binomialvariate(self, n=1, p=0.5): + """Binomial random variable. + + Gives the number of successes for *n* independent trials + with the probability of success in each trial being *p*: + + sum(random() < p for i in range(n)) + + Returns an integer in the range: 0 <= X <= n + + The mean (expected value) and variance of the random variable are: + + E[X] = n * p + Var[x] = n * p * (1 - p) + + """ + # Error check inputs and handle edge cases + if n < 0: + raise ValueError("n must be non-negative") + if p <= 0.0 or p >= 1.0: + if p == 0.0: + return 0 + if p == 1.0: + return n + raise ValueError("p must be in the range 0.0 <= p <= 1.0") + + random = self.random + + # Fast path for a common case + if n == 1: + return _index(random() < p) + + # Exploit symmetry to establish: p <= 0.5 + if p > 0.5: + return n - self.binomialvariate(n, 1.0 - p) + + if n * p < 10.0: + # BG: Geometric method by Devroye with running time of O(np). + # https://dl.acm.org/doi/pdf/10.1145/42372.42381 + x = y = 0 + c = _log2(1.0 - p) + if not c: + return x + while True: + y += _floor(_log2(random()) / c) + 1 + if y > n: + return x + x += 1 + + # BTRS: Transformed rejection with squeeze method by Wolfgang Hörmann + # https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.47.8407&rep=rep1&type=pdf + assert n*p >= 10.0 and p <= 0.5 + setup_complete = False + + spq = _sqrt(n * p * (1.0 - p)) # Standard deviation of the distribution + b = 1.15 + 2.53 * spq + a = -0.0873 + 0.0248 * b + 0.01 * p + c = n * p + 0.5 + vr = 0.92 - 4.2 / b + + while True: + + u = random() + u -= 0.5 + us = 0.5 - _fabs(u) + k = _floor((2.0 * a / us + b) * u + c) + if k < 0 or k > n: + continue + + # The early-out "squeeze" test substantially reduces + # the number of acceptance condition evaluations. + v = random() + if us >= 0.07 and v <= vr: + return k + + # Acceptance-rejection test. + # Note, the original paper erroneously omits the call to log(v) + # when comparing to the log of the rescaled binomial distribution. + if not setup_complete: + alpha = (2.83 + 5.1 / b) * spq + lpq = _log(p / (1.0 - p)) + m = _floor((n + 1) * p) # Mode of the distribution + h = _lgamma(m + 1) + _lgamma(n - m + 1) + setup_complete = True # Only needs to be done once + v *= alpha / (a / (us * us) + b) + if _log(v) <= h - _lgamma(k + 1) - _lgamma(n - k + 1) + (k - m) * lpq: + return k + + ## ------------------------------------------------------------------ ## --------------- Operating System Random Source ------------------ @@ -859,6 +948,7 @@ def _notimplemented(self, *args, **kwds): gammavariate = _inst.gammavariate gauss = _inst.gauss betavariate = _inst.betavariate +binomialvariate = _inst.binomialvariate paretovariate = _inst.paretovariate weibullvariate = _inst.weibullvariate getstate = _inst.getstate @@ -883,15 +973,17 @@ def _test_generator(n, func, args): low = min(data) high = max(data) - print(f'{t1 - t0:.3f} sec, {n} times {func.__name__}') + print(f'{t1 - t0:.3f} sec, {n} times {func.__name__}{args!r}') print('avg %g, stddev %g, min %g, max %g\n' % (xbar, sigma, low, high)) -def _test(N=2000): +def _test(N=10_000): _test_generator(N, random, ()) _test_generator(N, normalvariate, (0.0, 1.0)) _test_generator(N, lognormvariate, (0.0, 1.0)) _test_generator(N, vonmisesvariate, (0.0, 1.0)) + _test_generator(N, binomialvariate, (15, 0.60)) + _test_generator(N, binomialvariate, (100, 0.75)) _test_generator(N, gammavariate, (0.01, 1.0)) _test_generator(N, gammavariate, (0.1, 1.0)) _test_generator(N, gammavariate, (0.1, 2.0)) diff --git a/Lib/reprlib.py b/Lib/reprlib.py index 616b3439b5..19dbe3a07e 100644 --- a/Lib/reprlib.py +++ b/Lib/reprlib.py @@ -29,49 +29,100 @@ def wrapper(self): wrapper.__name__ = getattr(user_function, '__name__') wrapper.__qualname__ = getattr(user_function, '__qualname__') wrapper.__annotations__ = getattr(user_function, '__annotations__', {}) + wrapper.__type_params__ = getattr(user_function, '__type_params__', ()) + wrapper.__wrapped__ = user_function return wrapper return decorating_function class Repr: - - def __init__(self): - self.maxlevel = 6 - self.maxtuple = 6 - self.maxlist = 6 - self.maxarray = 5 - self.maxdict = 4 - self.maxset = 6 - self.maxfrozenset = 6 - self.maxdeque = 6 - self.maxstring = 30 - self.maxlong = 40 - self.maxother = 30 + _lookup = { + 'tuple': 'builtins', + 'list': 'builtins', + 'array': 'array', + 'set': 'builtins', + 'frozenset': 'builtins', + 'deque': 'collections', + 'dict': 'builtins', + 'str': 'builtins', + 'int': 'builtins' + } + + def __init__( + self, *, maxlevel=6, maxtuple=6, maxlist=6, maxarray=5, maxdict=4, + maxset=6, maxfrozenset=6, maxdeque=6, maxstring=30, maxlong=40, + maxother=30, fillvalue='...', indent=None, + ): + self.maxlevel = maxlevel + self.maxtuple = maxtuple + self.maxlist = maxlist + self.maxarray = maxarray + self.maxdict = maxdict + self.maxset = maxset + self.maxfrozenset = maxfrozenset + self.maxdeque = maxdeque + self.maxstring = maxstring + self.maxlong = maxlong + self.maxother = maxother + self.fillvalue = fillvalue + self.indent = indent def repr(self, x): return self.repr1(x, self.maxlevel) def repr1(self, x, level): - typename = type(x).__name__ + cls = type(x) + typename = cls.__name__ + if ' ' in typename: parts = typename.split() typename = '_'.join(parts) - if hasattr(self, 'repr_' + typename): - return getattr(self, 'repr_' + typename)(x, level) - else: - return self.repr_instance(x, level) + + method = getattr(self, 'repr_' + typename, None) + if method: + # not defined in this class + if typename not in self._lookup: + return method(x, level) + module = getattr(cls, '__module__', None) + # defined in this class and is the module intended + if module == self._lookup[typename]: + return method(x, level) + + return self.repr_instance(x, level) + + def _join(self, pieces, level): + if self.indent is None: + return ', '.join(pieces) + if not pieces: + return '' + indent = self.indent + if isinstance(indent, int): + if indent < 0: + raise ValueError( + f'Repr.indent cannot be negative int (was {indent!r})' + ) + indent *= ' ' + try: + sep = ',\n' + (self.maxlevel - level + 1) * indent + except TypeError as error: + raise TypeError( + f'Repr.indent must be a str, int or None, not {type(indent)}' + ) from error + return sep.join(('', *pieces, ''))[1:-len(indent) or None] def _repr_iterable(self, x, level, left, right, maxiter, trail=''): n = len(x) if level <= 0 and n: - s = '...' + s = self.fillvalue else: newlevel = level - 1 repr1 = self.repr1 pieces = [repr1(elem, newlevel) for elem in islice(x, maxiter)] - if n > maxiter: pieces.append('...') - s = ', '.join(pieces) - if n == 1 and trail: right = trail + right + if n > maxiter: + pieces.append(self.fillvalue) + s = self._join(pieces, level) + if n == 1 and trail and self.indent is None: + right = trail + right return '%s%s%s' % (left, s, right) def repr_tuple(self, x, level): @@ -104,8 +155,10 @@ def repr_deque(self, x, level): def repr_dict(self, x, level): n = len(x) - if n == 0: return '{}' - if level <= 0: return '{...}' + if n == 0: + return '{}' + if level <= 0: + return '{' + self.fillvalue + '}' newlevel = level - 1 repr1 = self.repr1 pieces = [] @@ -113,8 +166,9 @@ def repr_dict(self, x, level): keyrepr = repr1(key, newlevel) valrepr = repr1(x[key], newlevel) pieces.append('%s: %s' % (keyrepr, valrepr)) - if n > self.maxdict: pieces.append('...') - s = ', '.join(pieces) + if n > self.maxdict: + pieces.append(self.fillvalue) + s = self._join(pieces, level) return '{%s}' % (s,) def repr_str(self, x, level): @@ -123,7 +177,7 @@ def repr_str(self, x, level): i = max(0, (self.maxstring-3)//2) j = max(0, self.maxstring-3-i) s = builtins.repr(x[:i] + x[len(x)-j:]) - s = s[:i] + '...' + s[len(s)-j:] + s = s[:i] + self.fillvalue + s[len(s)-j:] return s def repr_int(self, x, level): @@ -131,7 +185,7 @@ def repr_int(self, x, level): if len(s) > self.maxlong: i = max(0, (self.maxlong-3)//2) j = max(0, self.maxlong-3-i) - s = s[:i] + '...' + s[len(s)-j:] + s = s[:i] + self.fillvalue + s[len(s)-j:] return s def repr_instance(self, x, level): @@ -144,7 +198,7 @@ def repr_instance(self, x, level): if len(s) > self.maxother: i = max(0, (self.maxother-3)//2) j = max(0, self.maxother-3-i) - s = s[:i] + '...' + s[len(s)-j:] + s = s[:i] + self.fillvalue + s[len(s)-j:] return s diff --git a/Lib/sched.py b/Lib/sched.py index 14613cf298..fb20639d45 100644 --- a/Lib/sched.py +++ b/Lib/sched.py @@ -11,7 +11,7 @@ implement simulated time by writing your own functions. This can also be used to integrate scheduling with STDWIN events; the delay function is allowed to modify the queue. Time can be expressed as -integers or floating point numbers, as long as it is consistent. +integers or floating-point numbers, as long as it is consistent. Events are specified by tuples (time, priority, action, argument, kwargs). As in UNIX, lower priority numbers mean higher priority; in this diff --git a/Lib/site.py b/Lib/site.py index 271524c0cf..acc8481b13 100644 --- a/Lib/site.py +++ b/Lib/site.py @@ -679,5 +679,17 @@ def exists(path): print(textwrap.dedent(help % (sys.argv[0], os.pathsep))) sys.exit(10) +def gethistoryfile(): + """Check if the PYTHON_HISTORY environment variable is set and define + it as the .python_history file. If PYTHON_HISTORY is not set, use the + default .python_history file. + """ + if not sys.flags.ignore_environment: + history = os.environ.get("PYTHON_HISTORY") + if history: + return history + return os.path.join(os.path.expanduser('~'), + '.python_history') + if __name__ == '__main__': _script() diff --git a/Lib/smtplib.py b/Lib/smtplib.py new file mode 100644 index 0000000000..912233d817 --- /dev/null +++ b/Lib/smtplib.py @@ -0,0 +1,1109 @@ +#! /usr/bin/env python3 + +'''SMTP/ESMTP client class. + +This should follow RFC 821 (SMTP), RFC 1869 (ESMTP), RFC 2554 (SMTP +Authentication) and RFC 2487 (Secure SMTP over TLS). + +Notes: + +Please remember, when doing ESMTP, that the names of the SMTP service +extensions are NOT the same thing as the option keywords for the RCPT +and MAIL commands! + +Example: + + >>> import smtplib + >>> s=smtplib.SMTP("localhost") + >>> print(s.help()) + This is Sendmail version 8.8.4 + Topics: + HELO EHLO MAIL RCPT DATA + RSET NOOP QUIT HELP VRFY + EXPN VERB ETRN DSN + For more info use "HELP ". + To report bugs in the implementation send email to + sendmail-bugs@sendmail.org. + For local information send email to Postmaster at your site. + End of HELP info + >>> s.putcmd("vrfy","someone@here") + >>> s.getreply() + (250, "Somebody OverHere ") + >>> s.quit() +''' + +# Author: The Dragon De Monsyne +# ESMTP support, test code and doc fixes added by +# Eric S. Raymond +# Better RFC 821 compliance (MAIL and RCPT, and CRLF in data) +# by Carey Evans , for picky mail servers. +# RFC 2554 (authentication) support by Gerhard Haering . +# +# This was modified from the Python 1.5 library HTTP lib. + +import socket +import io +import re +import email.utils +import email.message +import email.generator +import base64 +import hmac +import copy +import datetime +import sys +from email.base64mime import body_encode as encode_base64 + +__all__ = ["SMTPException", "SMTPNotSupportedError", "SMTPServerDisconnected", "SMTPResponseException", + "SMTPSenderRefused", "SMTPRecipientsRefused", "SMTPDataError", + "SMTPConnectError", "SMTPHeloError", "SMTPAuthenticationError", + "quoteaddr", "quotedata", "SMTP"] + +SMTP_PORT = 25 +SMTP_SSL_PORT = 465 +CRLF = "\r\n" +bCRLF = b"\r\n" +_MAXLINE = 8192 # more than 8 times larger than RFC 821, 4.5.3 +_MAXCHALLENGE = 5 # Maximum number of AUTH challenges sent + +OLDSTYLE_AUTH = re.compile(r"auth=(.*)", re.I) + +# Exception classes used by this module. +class SMTPException(OSError): + """Base class for all exceptions raised by this module.""" + +class SMTPNotSupportedError(SMTPException): + """The command or option is not supported by the SMTP server. + + This exception is raised when an attempt is made to run a command or a + command with an option which is not supported by the server. + """ + +class SMTPServerDisconnected(SMTPException): + """Not connected to any SMTP server. + + This exception is raised when the server unexpectedly disconnects, + or when an attempt is made to use the SMTP instance before + connecting it to a server. + """ + +class SMTPResponseException(SMTPException): + """Base class for all exceptions that include an SMTP error code. + + These exceptions are generated in some instances when the SMTP + server returns an error code. The error code is stored in the + `smtp_code' attribute of the error, and the `smtp_error' attribute + is set to the error message. + """ + + def __init__(self, code, msg): + self.smtp_code = code + self.smtp_error = msg + self.args = (code, msg) + +class SMTPSenderRefused(SMTPResponseException): + """Sender address refused. + + In addition to the attributes set by on all SMTPResponseException + exceptions, this sets `sender' to the string that the SMTP refused. + """ + + def __init__(self, code, msg, sender): + self.smtp_code = code + self.smtp_error = msg + self.sender = sender + self.args = (code, msg, sender) + +class SMTPRecipientsRefused(SMTPException): + """All recipient addresses refused. + + The errors for each recipient are accessible through the attribute + 'recipients', which is a dictionary of exactly the same sort as + SMTP.sendmail() returns. + """ + + def __init__(self, recipients): + self.recipients = recipients + self.args = (recipients,) + + +class SMTPDataError(SMTPResponseException): + """The SMTP server didn't accept the data.""" + +class SMTPConnectError(SMTPResponseException): + """Error during connection establishment.""" + +class SMTPHeloError(SMTPResponseException): + """The server refused our HELO reply.""" + +class SMTPAuthenticationError(SMTPResponseException): + """Authentication error. + + Most probably the server didn't accept the username/password + combination provided. + """ + +def quoteaddr(addrstring): + """Quote a subset of the email addresses defined by RFC 821. + + Should be able to handle anything email.utils.parseaddr can handle. + """ + displayname, addr = email.utils.parseaddr(addrstring) + if (displayname, addr) == ('', ''): + # parseaddr couldn't parse it, use it as is and hope for the best. + if addrstring.strip().startswith('<'): + return addrstring + return "<%s>" % addrstring + return "<%s>" % addr + +def _addr_only(addrstring): + displayname, addr = email.utils.parseaddr(addrstring) + if (displayname, addr) == ('', ''): + # parseaddr couldn't parse it, so use it as is. + return addrstring + return addr + +# Legacy method kept for backward compatibility. +def quotedata(data): + """Quote data for email. + + Double leading '.', and change Unix newline '\\n', or Mac '\\r' into + internet CRLF end-of-line. + """ + return re.sub(r'(?m)^\.', '..', + re.sub(r'(?:\r\n|\n|\r(?!\n))', CRLF, data)) + +def _quote_periods(bindata): + return re.sub(br'(?m)^\.', b'..', bindata) + +def _fix_eols(data): + return re.sub(r'(?:\r\n|\n|\r(?!\n))', CRLF, data) + +try: + import ssl +except ImportError: + _have_ssl = False +else: + _have_ssl = True + + +class SMTP: + """This class manages a connection to an SMTP or ESMTP server. + SMTP Objects: + SMTP objects have the following attributes: + helo_resp + This is the message given by the server in response to the + most recent HELO command. + + ehlo_resp + This is the message given by the server in response to the + most recent EHLO command. This is usually multiline. + + does_esmtp + This is a True value _after you do an EHLO command_, if the + server supports ESMTP. + + esmtp_features + This is a dictionary, which, if the server supports ESMTP, + will _after you do an EHLO command_, contain the names of the + SMTP service extensions this server supports, and their + parameters (if any). + + Note, all extension names are mapped to lower case in the + dictionary. + + See each method's docstrings for details. In general, there is a + method of the same name to perform each SMTP command. There is also a + method called 'sendmail' that will do an entire mail transaction. + """ + debuglevel = 0 + + sock = None + file = None + helo_resp = None + ehlo_msg = "ehlo" + ehlo_resp = None + does_esmtp = False + default_port = SMTP_PORT + + def __init__(self, host='', port=0, local_hostname=None, + timeout=socket._GLOBAL_DEFAULT_TIMEOUT, + source_address=None): + """Initialize a new instance. + + If specified, `host` is the name of the remote host to which to + connect. If specified, `port` specifies the port to which to connect. + By default, smtplib.SMTP_PORT is used. If a host is specified the + connect method is called, and if it returns anything other than a + success code an SMTPConnectError is raised. If specified, + `local_hostname` is used as the FQDN of the local host in the HELO/EHLO + command. Otherwise, the local hostname is found using + socket.getfqdn(). The `source_address` parameter takes a 2-tuple (host, + port) for the socket to bind to as its source address before + connecting. If the host is '' and port is 0, the OS default behavior + will be used. + + """ + self._host = host + self.timeout = timeout + self.esmtp_features = {} + self.command_encoding = 'ascii' + self.source_address = source_address + self._auth_challenge_count = 0 + + if host: + (code, msg) = self.connect(host, port) + if code != 220: + self.close() + raise SMTPConnectError(code, msg) + if local_hostname is not None: + self.local_hostname = local_hostname + else: + # RFC 2821 says we should use the fqdn in the EHLO/HELO verb, and + # if that can't be calculated, that we should use a domain literal + # instead (essentially an encoded IP address like [A.B.C.D]). + fqdn = socket.getfqdn() + if '.' in fqdn: + self.local_hostname = fqdn + else: + # We can't find an fqdn hostname, so use a domain literal + addr = '127.0.0.1' + try: + addr = socket.gethostbyname(socket.gethostname()) + except socket.gaierror: + pass + self.local_hostname = '[%s]' % addr + + def __enter__(self): + return self + + def __exit__(self, *args): + try: + code, message = self.docmd("QUIT") + if code != 221: + raise SMTPResponseException(code, message) + except SMTPServerDisconnected: + pass + finally: + self.close() + + def set_debuglevel(self, debuglevel): + """Set the debug output level. + + A non-false value results in debug messages for connection and for all + messages sent to and received from the server. + + """ + self.debuglevel = debuglevel + + def _print_debug(self, *args): + if self.debuglevel > 1: + print(datetime.datetime.now().time(), *args, file=sys.stderr) + else: + print(*args, file=sys.stderr) + + def _get_socket(self, host, port, timeout): + # This makes it simpler for SMTP_SSL to use the SMTP connect code + # and just alter the socket connection bit. + if timeout is not None and not timeout: + raise ValueError('Non-blocking socket (timeout=0) is not supported') + if self.debuglevel > 0: + self._print_debug('connect: to', (host, port), self.source_address) + return socket.create_connection((host, port), timeout, + self.source_address) + + def connect(self, host='localhost', port=0, source_address=None): + """Connect to a host on a given port. + + If the hostname ends with a colon (`:') followed by a number, and + there is no port specified, that suffix will be stripped off and the + number interpreted as the port number to use. + + Note: This method is automatically invoked by __init__, if a host is + specified during instantiation. + + """ + + if source_address: + self.source_address = source_address + + if not port and (host.find(':') == host.rfind(':')): + i = host.rfind(':') + if i >= 0: + host, port = host[:i], host[i + 1:] + try: + port = int(port) + except ValueError: + raise OSError("nonnumeric port") + if not port: + port = self.default_port + sys.audit("smtplib.connect", self, host, port) + self.sock = self._get_socket(host, port, self.timeout) + self.file = None + (code, msg) = self.getreply() + if self.debuglevel > 0: + self._print_debug('connect:', repr(msg)) + return (code, msg) + + def send(self, s): + """Send `s' to the server.""" + if self.debuglevel > 0: + self._print_debug('send:', repr(s)) + if self.sock: + if isinstance(s, str): + # send is used by the 'data' command, where command_encoding + # should not be used, but 'data' needs to convert the string to + # binary itself anyway, so that's not a problem. + s = s.encode(self.command_encoding) + sys.audit("smtplib.send", self, s) + try: + self.sock.sendall(s) + except OSError: + self.close() + raise SMTPServerDisconnected('Server not connected') + else: + raise SMTPServerDisconnected('please run connect() first') + + def putcmd(self, cmd, args=""): + """Send a command to the server.""" + if args == "": + s = cmd + else: + s = f'{cmd} {args}' + if '\r' in s or '\n' in s: + s = s.replace('\n', '\\n').replace('\r', '\\r') + raise ValueError( + f'command and arguments contain prohibited newline characters: {s}' + ) + self.send(f'{s}{CRLF}') + + def getreply(self): + """Get a reply from the server. + + Returns a tuple consisting of: + + - server response code (e.g. '250', or such, if all goes well) + Note: returns -1 if it can't read response code. + + - server response string corresponding to response code (multiline + responses are converted to a single, multiline string). + + Raises SMTPServerDisconnected if end-of-file is reached. + """ + resp = [] + if self.file is None: + self.file = self.sock.makefile('rb') + while 1: + try: + line = self.file.readline(_MAXLINE + 1) + except OSError as e: + self.close() + raise SMTPServerDisconnected("Connection unexpectedly closed: " + + str(e)) + if not line: + self.close() + raise SMTPServerDisconnected("Connection unexpectedly closed") + if self.debuglevel > 0: + self._print_debug('reply:', repr(line)) + if len(line) > _MAXLINE: + self.close() + raise SMTPResponseException(500, "Line too long.") + resp.append(line[4:].strip(b' \t\r\n')) + code = line[:3] + # Check that the error code is syntactically correct. + # Don't attempt to read a continuation line if it is broken. + try: + errcode = int(code) + except ValueError: + errcode = -1 + break + # Check if multiline response. + if line[3:4] != b"-": + break + + errmsg = b"\n".join(resp) + if self.debuglevel > 0: + self._print_debug('reply: retcode (%s); Msg: %a' % (errcode, errmsg)) + return errcode, errmsg + + def docmd(self, cmd, args=""): + """Send a command, and return its response code.""" + self.putcmd(cmd, args) + return self.getreply() + + # std smtp commands + def helo(self, name=''): + """SMTP 'helo' command. + Hostname to send for this command defaults to the FQDN of the local + host. + """ + self.putcmd("helo", name or self.local_hostname) + (code, msg) = self.getreply() + self.helo_resp = msg + return (code, msg) + + def ehlo(self, name=''): + """ SMTP 'ehlo' command. + Hostname to send for this command defaults to the FQDN of the local + host. + """ + self.esmtp_features = {} + self.putcmd(self.ehlo_msg, name or self.local_hostname) + (code, msg) = self.getreply() + # According to RFC1869 some (badly written) + # MTA's will disconnect on an ehlo. Toss an exception if + # that happens -ddm + if code == -1 and len(msg) == 0: + self.close() + raise SMTPServerDisconnected("Server not connected") + self.ehlo_resp = msg + if code != 250: + return (code, msg) + self.does_esmtp = True + #parse the ehlo response -ddm + assert isinstance(self.ehlo_resp, bytes), repr(self.ehlo_resp) + resp = self.ehlo_resp.decode("latin-1").split('\n') + del resp[0] + for each in resp: + # To be able to communicate with as many SMTP servers as possible, + # we have to take the old-style auth advertisement into account, + # because: + # 1) Else our SMTP feature parser gets confused. + # 2) There are some servers that only advertise the auth methods we + # support using the old style. + auth_match = OLDSTYLE_AUTH.match(each) + if auth_match: + # This doesn't remove duplicates, but that's no problem + self.esmtp_features["auth"] = self.esmtp_features.get("auth", "") \ + + " " + auth_match.groups(0)[0] + continue + + # RFC 1869 requires a space between ehlo keyword and parameters. + # It's actually stricter, in that only spaces are allowed between + # parameters, but were not going to check for that here. Note + # that the space isn't present if there are no parameters. + m = re.match(r'(?P[A-Za-z0-9][A-Za-z0-9\-]*) ?', each) + if m: + feature = m.group("feature").lower() + params = m.string[m.end("feature"):].strip() + if feature == "auth": + self.esmtp_features[feature] = self.esmtp_features.get(feature, "") \ + + " " + params + else: + self.esmtp_features[feature] = params + return (code, msg) + + def has_extn(self, opt): + """Does the server support a given SMTP service extension?""" + return opt.lower() in self.esmtp_features + + def help(self, args=''): + """SMTP 'help' command. + Returns help text from server.""" + self.putcmd("help", args) + return self.getreply()[1] + + def rset(self): + """SMTP 'rset' command -- resets session.""" + self.command_encoding = 'ascii' + return self.docmd("rset") + + def _rset(self): + """Internal 'rset' command which ignores any SMTPServerDisconnected error. + + Used internally in the library, since the server disconnected error + should appear to the application when the *next* command is issued, if + we are doing an internal "safety" reset. + """ + try: + self.rset() + except SMTPServerDisconnected: + pass + + def noop(self): + """SMTP 'noop' command -- doesn't do anything :>""" + return self.docmd("noop") + + def mail(self, sender, options=()): + """SMTP 'mail' command -- begins mail xfer session. + + This method may raise the following exceptions: + + SMTPNotSupportedError The options parameter includes 'SMTPUTF8' + but the SMTPUTF8 extension is not supported by + the server. + """ + optionlist = '' + if options and self.does_esmtp: + if any(x.lower()=='smtputf8' for x in options): + if self.has_extn('smtputf8'): + self.command_encoding = 'utf-8' + else: + raise SMTPNotSupportedError( + 'SMTPUTF8 not supported by server') + optionlist = ' ' + ' '.join(options) + self.putcmd("mail", "FROM:%s%s" % (quoteaddr(sender), optionlist)) + return self.getreply() + + def rcpt(self, recip, options=()): + """SMTP 'rcpt' command -- indicates 1 recipient for this mail.""" + optionlist = '' + if options and self.does_esmtp: + optionlist = ' ' + ' '.join(options) + self.putcmd("rcpt", "TO:%s%s" % (quoteaddr(recip), optionlist)) + return self.getreply() + + def data(self, msg): + """SMTP 'DATA' command -- sends message data to server. + + Automatically quotes lines beginning with a period per rfc821. + Raises SMTPDataError if there is an unexpected reply to the + DATA command; the return value from this method is the final + response code received when the all data is sent. If msg + is a string, lone '\\r' and '\\n' characters are converted to + '\\r\\n' characters. If msg is bytes, it is transmitted as is. + """ + self.putcmd("data") + (code, repl) = self.getreply() + if self.debuglevel > 0: + self._print_debug('data:', (code, repl)) + if code != 354: + raise SMTPDataError(code, repl) + else: + if isinstance(msg, str): + msg = _fix_eols(msg).encode('ascii') + q = _quote_periods(msg) + if q[-2:] != bCRLF: + q = q + bCRLF + q = q + b"." + bCRLF + self.send(q) + (code, msg) = self.getreply() + if self.debuglevel > 0: + self._print_debug('data:', (code, msg)) + return (code, msg) + + def verify(self, address): + """SMTP 'verify' command -- checks for address validity.""" + self.putcmd("vrfy", _addr_only(address)) + return self.getreply() + # a.k.a. + vrfy = verify + + def expn(self, address): + """SMTP 'expn' command -- expands a mailing list.""" + self.putcmd("expn", _addr_only(address)) + return self.getreply() + + # some useful methods + + def ehlo_or_helo_if_needed(self): + """Call self.ehlo() and/or self.helo() if needed. + + If there has been no previous EHLO or HELO command this session, this + method tries ESMTP EHLO first. + + This method may raise the following exceptions: + + SMTPHeloError The server didn't reply properly to + the helo greeting. + """ + if self.helo_resp is None and self.ehlo_resp is None: + if not (200 <= self.ehlo()[0] <= 299): + (code, resp) = self.helo() + if not (200 <= code <= 299): + raise SMTPHeloError(code, resp) + + def auth(self, mechanism, authobject, *, initial_response_ok=True): + """Authentication command - requires response processing. + + 'mechanism' specifies which authentication mechanism is to + be used - the valid values are those listed in the 'auth' + element of 'esmtp_features'. + + 'authobject' must be a callable object taking a single argument: + + data = authobject(challenge) + + It will be called to process the server's challenge response; the + challenge argument it is passed will be a bytes. It should return + an ASCII string that will be base64 encoded and sent to the server. + + Keyword arguments: + - initial_response_ok: Allow sending the RFC 4954 initial-response + to the AUTH command, if the authentication methods supports it. + """ + # RFC 4954 allows auth methods to provide an initial response. Not all + # methods support it. By definition, if they return something other + # than None when challenge is None, then they do. See issue #15014. + mechanism = mechanism.upper() + initial_response = (authobject() if initial_response_ok else None) + if initial_response is not None: + response = encode_base64(initial_response.encode('ascii'), eol='') + (code, resp) = self.docmd("AUTH", mechanism + " " + response) + self._auth_challenge_count = 1 + else: + (code, resp) = self.docmd("AUTH", mechanism) + self._auth_challenge_count = 0 + # If server responds with a challenge, send the response. + while code == 334: + self._auth_challenge_count += 1 + challenge = base64.decodebytes(resp) + response = encode_base64( + authobject(challenge).encode('ascii'), eol='') + (code, resp) = self.docmd(response) + # If server keeps sending challenges, something is wrong. + if self._auth_challenge_count > _MAXCHALLENGE: + raise SMTPException( + "Server AUTH mechanism infinite loop. Last response: " + + repr((code, resp)) + ) + if code in (235, 503): + return (code, resp) + raise SMTPAuthenticationError(code, resp) + + def auth_cram_md5(self, challenge=None): + """ Authobject to use with CRAM-MD5 authentication. Requires self.user + and self.password to be set.""" + # CRAM-MD5 does not support initial-response. + if challenge is None: + return None + return self.user + " " + hmac.HMAC( + self.password.encode('ascii'), challenge, 'md5').hexdigest() + + def auth_plain(self, challenge=None): + """ Authobject to use with PLAIN authentication. Requires self.user and + self.password to be set.""" + return "\0%s\0%s" % (self.user, self.password) + + def auth_login(self, challenge=None): + """ Authobject to use with LOGIN authentication. Requires self.user and + self.password to be set.""" + if challenge is None or self._auth_challenge_count < 2: + return self.user + else: + return self.password + + def login(self, user, password, *, initial_response_ok=True): + """Log in on an SMTP server that requires authentication. + + The arguments are: + - user: The user name to authenticate with. + - password: The password for the authentication. + + Keyword arguments: + - initial_response_ok: Allow sending the RFC 4954 initial-response + to the AUTH command, if the authentication methods supports it. + + If there has been no previous EHLO or HELO command this session, this + method tries ESMTP EHLO first. + + This method will return normally if the authentication was successful. + + This method may raise the following exceptions: + + SMTPHeloError The server didn't reply properly to + the helo greeting. + SMTPAuthenticationError The server didn't accept the username/ + password combination. + SMTPNotSupportedError The AUTH command is not supported by the + server. + SMTPException No suitable authentication method was + found. + """ + + self.ehlo_or_helo_if_needed() + if not self.has_extn("auth"): + raise SMTPNotSupportedError( + "SMTP AUTH extension not supported by server.") + + # Authentication methods the server claims to support + advertised_authlist = self.esmtp_features["auth"].split() + + # Authentication methods we can handle in our preferred order: + preferred_auths = ['CRAM-MD5', 'PLAIN', 'LOGIN'] + + # We try the supported authentications in our preferred order, if + # the server supports them. + authlist = [auth for auth in preferred_auths + if auth in advertised_authlist] + if not authlist: + raise SMTPException("No suitable authentication method found.") + + # Some servers advertise authentication methods they don't really + # support, so if authentication fails, we continue until we've tried + # all methods. + self.user, self.password = user, password + for authmethod in authlist: + method_name = 'auth_' + authmethod.lower().replace('-', '_') + try: + (code, resp) = self.auth( + authmethod, getattr(self, method_name), + initial_response_ok=initial_response_ok) + # 235 == 'Authentication successful' + # 503 == 'Error: already authenticated' + if code in (235, 503): + return (code, resp) + except SMTPAuthenticationError as e: + last_exception = e + + # We could not login successfully. Return result of last attempt. + raise last_exception + + def starttls(self, *, context=None): + """Puts the connection to the SMTP server into TLS mode. + + If there has been no previous EHLO or HELO command this session, this + method tries ESMTP EHLO first. + + If the server supports TLS, this will encrypt the rest of the SMTP + session. If you provide the context parameter, + the identity of the SMTP server and client can be checked. This, + however, depends on whether the socket module really checks the + certificates. + + This method may raise the following exceptions: + + SMTPHeloError The server didn't reply properly to + the helo greeting. + """ + self.ehlo_or_helo_if_needed() + if not self.has_extn("starttls"): + raise SMTPNotSupportedError( + "STARTTLS extension not supported by server.") + (resp, reply) = self.docmd("STARTTLS") + if resp == 220: + if not _have_ssl: + raise RuntimeError("No SSL support included in this Python") + if context is None: + context = ssl._create_stdlib_context() + self.sock = context.wrap_socket(self.sock, + server_hostname=self._host) + self.file = None + # RFC 3207: + # The client MUST discard any knowledge obtained from + # the server, such as the list of SMTP service extensions, + # which was not obtained from the TLS negotiation itself. + self.helo_resp = None + self.ehlo_resp = None + self.esmtp_features = {} + self.does_esmtp = False + else: + # RFC 3207: + # 501 Syntax error (no parameters allowed) + # 454 TLS not available due to temporary reason + raise SMTPResponseException(resp, reply) + return (resp, reply) + + def sendmail(self, from_addr, to_addrs, msg, mail_options=(), + rcpt_options=()): + """This command performs an entire mail transaction. + + The arguments are: + - from_addr : The address sending this mail. + - to_addrs : A list of addresses to send this mail to. A bare + string will be treated as a list with 1 address. + - msg : The message to send. + - mail_options : List of ESMTP options (such as 8bitmime) for the + mail command. + - rcpt_options : List of ESMTP options (such as DSN commands) for + all the rcpt commands. + + msg may be a string containing characters in the ASCII range, or a byte + string. A string is encoded to bytes using the ascii codec, and lone + \\r and \\n characters are converted to \\r\\n characters. + + If there has been no previous EHLO or HELO command this session, this + method tries ESMTP EHLO first. If the server does ESMTP, message size + and each of the specified options will be passed to it. If EHLO + fails, HELO will be tried and ESMTP options suppressed. + + This method will return normally if the mail is accepted for at least + one recipient. It returns a dictionary, with one entry for each + recipient that was refused. Each entry contains a tuple of the SMTP + error code and the accompanying error message sent by the server. + + This method may raise the following exceptions: + + SMTPHeloError The server didn't reply properly to + the helo greeting. + SMTPRecipientsRefused The server rejected ALL recipients + (no mail was sent). + SMTPSenderRefused The server didn't accept the from_addr. + SMTPDataError The server replied with an unexpected + error code (other than a refusal of + a recipient). + SMTPNotSupportedError The mail_options parameter includes 'SMTPUTF8' + but the SMTPUTF8 extension is not supported by + the server. + + Note: the connection will be open even after an exception is raised. + + Example: + + >>> import smtplib + >>> s=smtplib.SMTP("localhost") + >>> tolist=["one@one.org","two@two.org","three@three.org","four@four.org"] + >>> msg = '''\\ + ... From: Me@my.org + ... Subject: testin'... + ... + ... This is a test ''' + >>> s.sendmail("me@my.org",tolist,msg) + { "three@three.org" : ( 550 ,"User unknown" ) } + >>> s.quit() + + In the above example, the message was accepted for delivery to three + of the four addresses, and one was rejected, with the error code + 550. If all addresses are accepted, then the method will return an + empty dictionary. + + """ + self.ehlo_or_helo_if_needed() + esmtp_opts = [] + if isinstance(msg, str): + msg = _fix_eols(msg).encode('ascii') + if self.does_esmtp: + if self.has_extn('size'): + esmtp_opts.append("size=%d" % len(msg)) + for option in mail_options: + esmtp_opts.append(option) + (code, resp) = self.mail(from_addr, esmtp_opts) + if code != 250: + if code == 421: + self.close() + else: + self._rset() + raise SMTPSenderRefused(code, resp, from_addr) + senderrs = {} + if isinstance(to_addrs, str): + to_addrs = [to_addrs] + for each in to_addrs: + (code, resp) = self.rcpt(each, rcpt_options) + if (code != 250) and (code != 251): + senderrs[each] = (code, resp) + if code == 421: + self.close() + raise SMTPRecipientsRefused(senderrs) + if len(senderrs) == len(to_addrs): + # the server refused all our recipients + self._rset() + raise SMTPRecipientsRefused(senderrs) + (code, resp) = self.data(msg) + if code != 250: + if code == 421: + self.close() + else: + self._rset() + raise SMTPDataError(code, resp) + #if we got here then somebody got our mail + return senderrs + + def send_message(self, msg, from_addr=None, to_addrs=None, + mail_options=(), rcpt_options=()): + """Converts message to a bytestring and passes it to sendmail. + + The arguments are as for sendmail, except that msg is an + email.message.Message object. If from_addr is None or to_addrs is + None, these arguments are taken from the headers of the Message as + described in RFC 2822 (a ValueError is raised if there is more than + one set of 'Resent-' headers). Regardless of the values of from_addr and + to_addr, any Bcc field (or Resent-Bcc field, when the Message is a + resent) of the Message object won't be transmitted. The Message + object is then serialized using email.generator.BytesGenerator and + sendmail is called to transmit the message. If the sender or any of + the recipient addresses contain non-ASCII and the server advertises the + SMTPUTF8 capability, the policy is cloned with utf8 set to True for the + serialization, and SMTPUTF8 and BODY=8BITMIME are asserted on the send. + If the server does not support SMTPUTF8, an SMTPNotSupported error is + raised. Otherwise the generator is called without modifying the + policy. + + """ + # 'Resent-Date' is a mandatory field if the Message is resent (RFC 2822 + # Section 3.6.6). In such a case, we use the 'Resent-*' fields. However, + # if there is more than one 'Resent-' block there's no way to + # unambiguously determine which one is the most recent in all cases, + # so rather than guess we raise a ValueError in that case. + # + # TODO implement heuristics to guess the correct Resent-* block with an + # option allowing the user to enable the heuristics. (It should be + # possible to guess correctly almost all of the time.) + + self.ehlo_or_helo_if_needed() + resent = msg.get_all('Resent-Date') + if resent is None: + header_prefix = '' + elif len(resent) == 1: + header_prefix = 'Resent-' + else: + raise ValueError("message has more than one 'Resent-' header block") + if from_addr is None: + # Prefer the sender field per RFC 2822:3.6.2. + from_addr = (msg[header_prefix + 'Sender'] + if (header_prefix + 'Sender') in msg + else msg[header_prefix + 'From']) + from_addr = email.utils.getaddresses([from_addr])[0][1] + if to_addrs is None: + addr_fields = [f for f in (msg[header_prefix + 'To'], + msg[header_prefix + 'Bcc'], + msg[header_prefix + 'Cc']) + if f is not None] + to_addrs = [a[1] for a in email.utils.getaddresses(addr_fields)] + # Make a local copy so we can delete the bcc headers. + msg_copy = copy.copy(msg) + del msg_copy['Bcc'] + del msg_copy['Resent-Bcc'] + international = False + try: + ''.join([from_addr, *to_addrs]).encode('ascii') + except UnicodeEncodeError: + if not self.has_extn('smtputf8'): + raise SMTPNotSupportedError( + "One or more source or delivery addresses require" + " internationalized email support, but the server" + " does not advertise the required SMTPUTF8 capability") + international = True + with io.BytesIO() as bytesmsg: + if international: + g = email.generator.BytesGenerator( + bytesmsg, policy=msg.policy.clone(utf8=True)) + mail_options = (*mail_options, 'SMTPUTF8', 'BODY=8BITMIME') + else: + g = email.generator.BytesGenerator(bytesmsg) + g.flatten(msg_copy, linesep='\r\n') + flatmsg = bytesmsg.getvalue() + return self.sendmail(from_addr, to_addrs, flatmsg, mail_options, + rcpt_options) + + def close(self): + """Close the connection to the SMTP server.""" + try: + file = self.file + self.file = None + if file: + file.close() + finally: + sock = self.sock + self.sock = None + if sock: + sock.close() + + def quit(self): + """Terminate the SMTP session.""" + res = self.docmd("quit") + # A new EHLO is required after reconnecting with connect() + self.ehlo_resp = self.helo_resp = None + self.esmtp_features = {} + self.does_esmtp = False + self.close() + return res + +if _have_ssl: + + class SMTP_SSL(SMTP): + """ This is a subclass derived from SMTP that connects over an SSL + encrypted socket (to use this class you need a socket module that was + compiled with SSL support). If host is not specified, '' (the local + host) is used. If port is omitted, the standard SMTP-over-SSL port + (465) is used. local_hostname and source_address have the same meaning + as they do in the SMTP class. context also optional, can contain a + SSLContext. + + """ + + default_port = SMTP_SSL_PORT + + def __init__(self, host='', port=0, local_hostname=None, + *, timeout=socket._GLOBAL_DEFAULT_TIMEOUT, + source_address=None, context=None): + if context is None: + context = ssl._create_stdlib_context() + self.context = context + SMTP.__init__(self, host, port, local_hostname, timeout, + source_address) + + def _get_socket(self, host, port, timeout): + if self.debuglevel > 0: + self._print_debug('connect:', (host, port)) + new_socket = super()._get_socket(host, port, timeout) + new_socket = self.context.wrap_socket(new_socket, + server_hostname=self._host) + return new_socket + + __all__.append("SMTP_SSL") + +# +# LMTP extension +# +LMTP_PORT = 2003 + +class LMTP(SMTP): + """LMTP - Local Mail Transfer Protocol + + The LMTP protocol, which is very similar to ESMTP, is heavily based + on the standard SMTP client. It's common to use Unix sockets for + LMTP, so our connect() method must support that as well as a regular + host:port server. local_hostname and source_address have the same + meaning as they do in the SMTP class. To specify a Unix socket, + you must use an absolute path as the host, starting with a '/'. + + Authentication is supported, using the regular SMTP mechanism. When + using a Unix socket, LMTP generally don't support or require any + authentication, but your mileage might vary.""" + + ehlo_msg = "lhlo" + + def __init__(self, host='', port=LMTP_PORT, local_hostname=None, + source_address=None, timeout=socket._GLOBAL_DEFAULT_TIMEOUT): + """Initialize a new instance.""" + super().__init__(host, port, local_hostname=local_hostname, + source_address=source_address, timeout=timeout) + + def connect(self, host='localhost', port=0, source_address=None): + """Connect to the LMTP daemon, on either a Unix or a TCP socket.""" + if host[0] != '/': + return super().connect(host, port, source_address=source_address) + + if self.timeout is not None and not self.timeout: + raise ValueError('Non-blocking socket (timeout=0) is not supported') + + # Handle Unix-domain sockets. + try: + self.sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) + if self.timeout is not socket._GLOBAL_DEFAULT_TIMEOUT: + self.sock.settimeout(self.timeout) + self.file = None + self.sock.connect(host) + except OSError: + if self.debuglevel > 0: + self._print_debug('connect fail:', host) + if self.sock: + self.sock.close() + self.sock = None + raise + (code, msg) = self.getreply() + if self.debuglevel > 0: + self._print_debug('connect:', msg) + return (code, msg) + + +# Test the sendmail method, which tests most of the others. +# Note: This always sends to localhost. +if __name__ == '__main__': + def prompt(prompt): + sys.stdout.write(prompt + ": ") + sys.stdout.flush() + return sys.stdin.readline().strip() + + fromaddr = prompt("From") + toaddrs = prompt("To").split(',') + print("Enter message, end with ^D:") + msg = '' + while line := sys.stdin.readline(): + msg = msg + line + print("Message length is %d" % len(msg)) + + server = SMTP('localhost') + server.set_debuglevel(1) + server.sendmail(fromaddr, toaddrs, msg) + server.quit() diff --git a/Lib/sndhdr.py b/Lib/sndhdr.py deleted file mode 100644 index 594353136f..0000000000 --- a/Lib/sndhdr.py +++ /dev/null @@ -1,257 +0,0 @@ -"""Routines to help recognizing sound files. - -Function whathdr() recognizes various types of sound file headers. -It understands almost all headers that SOX can decode. - -The return tuple contains the following items, in this order: -- file type (as SOX understands it) -- sampling rate (0 if unknown or hard to decode) -- number of channels (0 if unknown or hard to decode) -- number of frames in the file (-1 if unknown or hard to decode) -- number of bits/sample, or 'U' for U-LAW, or 'A' for A-LAW - -If the file doesn't have a recognizable type, it returns None. -If the file can't be opened, OSError is raised. - -To compute the total time, divide the number of frames by the -sampling rate (a frame contains a sample for each channel). - -Function what() calls whathdr(). (It used to also use some -heuristics for raw data, but this doesn't work very well.) - -Finally, the function test() is a simple main program that calls -what() for all files mentioned on the argument list. For directory -arguments it calls what() for all files in that directory. Default -argument is "." (testing all files in the current directory). The -option -r tells it to recurse down directories found inside -explicitly given directories. -""" - -# The file structure is top-down except that the test program and its -# subroutine come last. - -__all__ = ['what', 'whathdr'] - -from collections import namedtuple - -SndHeaders = namedtuple('SndHeaders', - 'filetype framerate nchannels nframes sampwidth') - -SndHeaders.filetype.__doc__ = ("""The value for type indicates the data type -and will be one of the strings 'aifc', 'aiff', 'au','hcom', -'sndr', 'sndt', 'voc', 'wav', '8svx', 'sb', 'ub', or 'ul'.""") -SndHeaders.framerate.__doc__ = ("""The sampling_rate will be either the actual -value or 0 if unknown or difficult to decode.""") -SndHeaders.nchannels.__doc__ = ("""The number of channels or 0 if it cannot be -determined or if the value is difficult to decode.""") -SndHeaders.nframes.__doc__ = ("""The value for frames will be either the number -of frames or -1.""") -SndHeaders.sampwidth.__doc__ = ("""Either the sample size in bits or -'A' for A-LAW or 'U' for u-LAW.""") - -def what(filename): - """Guess the type of a sound file.""" - res = whathdr(filename) - return res - - -def whathdr(filename): - """Recognize sound headers.""" - with open(filename, 'rb') as f: - h = f.read(512) - for tf in tests: - res = tf(h, f) - if res: - return SndHeaders(*res) - return None - - -#-----------------------------------# -# Subroutines per sound header type # -#-----------------------------------# - -tests = [] - -def test_aifc(h, f): - import aifc - if not h.startswith(b'FORM'): - return None - if h[8:12] == b'AIFC': - fmt = 'aifc' - elif h[8:12] == b'AIFF': - fmt = 'aiff' - else: - return None - f.seek(0) - try: - a = aifc.open(f, 'r') - except (EOFError, aifc.Error): - return None - return (fmt, a.getframerate(), a.getnchannels(), - a.getnframes(), 8 * a.getsampwidth()) - -tests.append(test_aifc) - - -def test_au(h, f): - if h.startswith(b'.snd'): - func = get_long_be - elif h[:4] in (b'\0ds.', b'dns.'): - func = get_long_le - else: - return None - filetype = 'au' - hdr_size = func(h[4:8]) - data_size = func(h[8:12]) - encoding = func(h[12:16]) - rate = func(h[16:20]) - nchannels = func(h[20:24]) - sample_size = 1 # default - if encoding == 1: - sample_bits = 'U' - elif encoding == 2: - sample_bits = 8 - elif encoding == 3: - sample_bits = 16 - sample_size = 2 - else: - sample_bits = '?' - frame_size = sample_size * nchannels - if frame_size: - nframe = data_size / frame_size - else: - nframe = -1 - return filetype, rate, nchannels, nframe, sample_bits - -tests.append(test_au) - - -def test_hcom(h, f): - if h[65:69] != b'FSSD' or h[128:132] != b'HCOM': - return None - divisor = get_long_be(h[144:148]) - if divisor: - rate = 22050 / divisor - else: - rate = 0 - return 'hcom', rate, 1, -1, 8 - -tests.append(test_hcom) - - -def test_voc(h, f): - if not h.startswith(b'Creative Voice File\032'): - return None - sbseek = get_short_le(h[20:22]) - rate = 0 - if 0 <= sbseek < 500 and h[sbseek] == 1: - ratecode = 256 - h[sbseek+4] - if ratecode: - rate = int(1000000.0 / ratecode) - return 'voc', rate, 1, -1, 8 - -tests.append(test_voc) - - -def test_wav(h, f): - import wave - # 'RIFF' 'WAVE' 'fmt ' - if not h.startswith(b'RIFF') or h[8:12] != b'WAVE' or h[12:16] != b'fmt ': - return None - f.seek(0) - try: - w = wave.open(f, 'r') - except (EOFError, wave.Error): - return None - return ('wav', w.getframerate(), w.getnchannels(), - w.getnframes(), 8*w.getsampwidth()) - -tests.append(test_wav) - - -def test_8svx(h, f): - if not h.startswith(b'FORM') or h[8:12] != b'8SVX': - return None - # Should decode it to get #channels -- assume always 1 - return '8svx', 0, 1, 0, 8 - -tests.append(test_8svx) - - -def test_sndt(h, f): - if h.startswith(b'SOUND'): - nsamples = get_long_le(h[8:12]) - rate = get_short_le(h[20:22]) - return 'sndt', rate, 1, nsamples, 8 - -tests.append(test_sndt) - - -def test_sndr(h, f): - if h.startswith(b'\0\0'): - rate = get_short_le(h[2:4]) - if 4000 <= rate <= 25000: - return 'sndr', rate, 1, -1, 8 - -tests.append(test_sndr) - - -#-------------------------------------------# -# Subroutines to extract numbers from bytes # -#-------------------------------------------# - -def get_long_be(b): - return (b[0] << 24) | (b[1] << 16) | (b[2] << 8) | b[3] - -def get_long_le(b): - return (b[3] << 24) | (b[2] << 16) | (b[1] << 8) | b[0] - -def get_short_be(b): - return (b[0] << 8) | b[1] - -def get_short_le(b): - return (b[1] << 8) | b[0] - - -#--------------------# -# Small test program # -#--------------------# - -def test(): - import sys - recursive = 0 - if sys.argv[1:] and sys.argv[1] == '-r': - del sys.argv[1:2] - recursive = 1 - try: - if sys.argv[1:]: - testall(sys.argv[1:], recursive, 1) - else: - testall(['.'], recursive, 1) - except KeyboardInterrupt: - sys.stderr.write('\n[Interrupted]\n') - sys.exit(1) - -def testall(list, recursive, toplevel): - import sys - import os - for filename in list: - if os.path.isdir(filename): - print(filename + '/:', end=' ') - if recursive or toplevel: - print('recursing down:') - import glob - names = glob.glob(os.path.join(filename, '*')) - testall(names, recursive, 0) - else: - print('*** directory (use -r) ***') - else: - print(filename + ':', end=' ') - sys.stdout.flush() - try: - print(what(filename)) - except OSError: - print('*** not found ***') - -if __name__ == '__main__': - test() diff --git a/Lib/socket.py b/Lib/socket.py index 63ba0acc90..42ee130773 100644 --- a/Lib/socket.py +++ b/Lib/socket.py @@ -13,7 +13,7 @@ socketpair() -- create a pair of new socket objects [*] fromfd() -- create a socket object from an open file descriptor [*] send_fds() -- Send file descriptor to the socket. -recv_fds() -- Recieve file descriptors from the socket. +recv_fds() -- Receive file descriptors from the socket. fromshare() -- create a socket object from data received from socket.share() [*] gethostname() -- return the current hostname gethostbyname() -- map a hostname to its IP number @@ -28,6 +28,7 @@ socket.setdefaulttimeout() -- set the default timeout value create_connection() -- connects to an address, with an optional timeout and optional source address. +create_server() -- create a TCP socket and bind it to a specified address. [*] not available on all platforms! @@ -122,7 +123,7 @@ def _intenum_converter(value, enum_klass): errorTab[10014] = "A fault occurred on the network??" # WSAEFAULT errorTab[10022] = "An invalid operation was attempted." errorTab[10024] = "Too many open files." - errorTab[10035] = "The socket operation would block" + errorTab[10035] = "The socket operation would block." errorTab[10036] = "A blocking operation is already in progress." errorTab[10037] = "Operation already in progress." errorTab[10038] = "Socket operation on nonsocket." @@ -254,17 +255,18 @@ def __repr__(self): self.type, self.proto) if not closed: + # getsockname and getpeername may not be available on WASI. try: laddr = self.getsockname() if laddr: s += ", laddr=%s" % str(laddr) - except error: + except (error, AttributeError): pass try: raddr = self.getpeername() if raddr: s += ", raddr=%s" % str(raddr) - except error: + except (error, AttributeError): pass s += '>' return s @@ -380,7 +382,7 @@ def _sendfile_use_sendfile(self, file, offset=0, count=None): if timeout and not selector_select(timeout): raise TimeoutError('timed out') if count: - blocksize = count - total_sent + blocksize = min(count - total_sent, blocksize) if blocksize <= 0: break try: @@ -783,11 +785,11 @@ def getfqdn(name=''): First the hostname returned by gethostbyaddr() is checked, then possibly existing aliases. In case no FQDN is available and `name` - was given, it is returned unchanged. If `name` was empty or '0.0.0.0', + was given, it is returned unchanged. If `name` was empty, '0.0.0.0' or '::', hostname from gethostname() is returned. """ name = name.strip() - if not name or name == '0.0.0.0': + if not name or name in ('0.0.0.0', '::'): name = gethostname() try: hostname, aliases, ipaddrs = gethostbyaddr(name) @@ -806,7 +808,7 @@ def getfqdn(name=''): _GLOBAL_DEFAULT_TIMEOUT = object() def create_connection(address, timeout=_GLOBAL_DEFAULT_TIMEOUT, - source_address=None): + source_address=None, *, all_errors=False): """Connect to *address* and return the socket object. Convenience function. Connect to *address* (a 2-tuple ``(host, @@ -816,11 +818,13 @@ def create_connection(address, timeout=_GLOBAL_DEFAULT_TIMEOUT, global default timeout setting returned by :func:`getdefaulttimeout` is used. If *source_address* is set it must be a tuple of (host, port) for the socket to bind as a source address before making the connection. - A host of '' or port 0 tells the OS to use the default. + A host of '' or port 0 tells the OS to use the default. When a connection + cannot be created, raises the last error if *all_errors* is False, + and an ExceptionGroup of all errors if *all_errors* is True. """ host, port = address - err = None + exceptions = [] for res in getaddrinfo(host, port, 0, SOCK_STREAM): af, socktype, proto, canonname, sa = res sock = None @@ -832,20 +836,24 @@ def create_connection(address, timeout=_GLOBAL_DEFAULT_TIMEOUT, sock.bind(source_address) sock.connect(sa) # Break explicitly a reference cycle - err = None + exceptions.clear() return sock - except error as _: - err = _ + except error as exc: + if not all_errors: + exceptions.clear() # raise only the last error + exceptions.append(exc) if sock is not None: sock.close() - if err is not None: + if len(exceptions): try: - raise err + if not all_errors: + raise exceptions[0] + raise ExceptionGroup("create_connection failed", exceptions) finally: # Break explicitly a reference cycle - err = None + exceptions.clear() else: raise error("getaddrinfo returns an empty list") @@ -902,7 +910,7 @@ def create_server(address, *, family=AF_INET, backlog=None, reuse_port=False, # address, effectively preventing this one from accepting # connections. Also, it may set the process in a state where # it'll no longer respond to any signals or graceful kills. - # See: msdn2.microsoft.com/en-us/library/ms740621(VS.85).aspx + # See: https://learn.microsoft.com/windows/win32/winsock/using-so-reuseaddr-and-so-exclusiveaddruse if os.name not in ('nt', 'cygwin') and \ hasattr(_socket, 'SO_REUSEADDR'): try: diff --git a/Lib/sunau.py b/Lib/sunau.py deleted file mode 100644 index 129502b0b4..0000000000 --- a/Lib/sunau.py +++ /dev/null @@ -1,531 +0,0 @@ -"""Stuff to parse Sun and NeXT audio files. - -An audio file consists of a header followed by the data. The structure -of the header is as follows. - - +---------------+ - | magic word | - +---------------+ - | header size | - +---------------+ - | data size | - +---------------+ - | encoding | - +---------------+ - | sample rate | - +---------------+ - | # of channels | - +---------------+ - | info | - | | - +---------------+ - -The magic word consists of the 4 characters '.snd'. Apart from the -info field, all header fields are 4 bytes in size. They are all -32-bit unsigned integers encoded in big-endian byte order. - -The header size really gives the start of the data. -The data size is the physical size of the data. From the other -parameters the number of frames can be calculated. -The encoding gives the way in which audio samples are encoded. -Possible values are listed below. -The info field currently consists of an ASCII string giving a -human-readable description of the audio file. The info field is -padded with NUL bytes to the header size. - -Usage. - -Reading audio files: - f = sunau.open(file, 'r') -where file is either the name of a file or an open file pointer. -The open file pointer must have methods read(), seek(), and close(). -When the setpos() and rewind() methods are not used, the seek() -method is not necessary. - -This returns an instance of a class with the following public methods: - getnchannels() -- returns number of audio channels (1 for - mono, 2 for stereo) - getsampwidth() -- returns sample width in bytes - getframerate() -- returns sampling frequency - getnframes() -- returns number of audio frames - getcomptype() -- returns compression type ('NONE' or 'ULAW') - getcompname() -- returns human-readable version of - compression type ('not compressed' matches 'NONE') - getparams() -- returns a namedtuple consisting of all of the - above in the above order - getmarkers() -- returns None (for compatibility with the - aifc module) - getmark(id) -- raises an error since the mark does not - exist (for compatibility with the aifc module) - readframes(n) -- returns at most n frames of audio - rewind() -- rewind to the beginning of the audio stream - setpos(pos) -- seek to the specified position - tell() -- return the current position - close() -- close the instance (make it unusable) -The position returned by tell() and the position given to setpos() -are compatible and have nothing to do with the actual position in the -file. -The close() method is called automatically when the class instance -is destroyed. - -Writing audio files: - f = sunau.open(file, 'w') -where file is either the name of a file or an open file pointer. -The open file pointer must have methods write(), tell(), seek(), and -close(). - -This returns an instance of a class with the following public methods: - setnchannels(n) -- set the number of channels - setsampwidth(n) -- set the sample width - setframerate(n) -- set the frame rate - setnframes(n) -- set the number of frames - setcomptype(type, name) - -- set the compression type and the - human-readable compression type - setparams(tuple)-- set all parameters at once - tell() -- return current position in output file - writeframesraw(data) - -- write audio frames without pathing up the - file header - writeframes(data) - -- write audio frames and patch up the file header - close() -- patch up the file header and close the - output file -You should set the parameters before the first writeframesraw or -writeframes. The total number of frames does not need to be set, -but when it is set to the correct value, the header does not have to -be patched up. -It is best to first set all parameters, perhaps possibly the -compression type, and then write audio frames using writeframesraw. -When all frames have been written, either call writeframes(b'') or -close() to patch up the sizes in the header. -The close() method is called automatically when the class instance -is destroyed. -""" - -from collections import namedtuple -import warnings - -_sunau_params = namedtuple('_sunau_params', - 'nchannels sampwidth framerate nframes comptype compname') - -# from -AUDIO_FILE_MAGIC = 0x2e736e64 -AUDIO_FILE_ENCODING_MULAW_8 = 1 -AUDIO_FILE_ENCODING_LINEAR_8 = 2 -AUDIO_FILE_ENCODING_LINEAR_16 = 3 -AUDIO_FILE_ENCODING_LINEAR_24 = 4 -AUDIO_FILE_ENCODING_LINEAR_32 = 5 -AUDIO_FILE_ENCODING_FLOAT = 6 -AUDIO_FILE_ENCODING_DOUBLE = 7 -AUDIO_FILE_ENCODING_ADPCM_G721 = 23 -AUDIO_FILE_ENCODING_ADPCM_G722 = 24 -AUDIO_FILE_ENCODING_ADPCM_G723_3 = 25 -AUDIO_FILE_ENCODING_ADPCM_G723_5 = 26 -AUDIO_FILE_ENCODING_ALAW_8 = 27 - -# from -AUDIO_UNKNOWN_SIZE = 0xFFFFFFFF # ((unsigned)(~0)) - -_simple_encodings = [AUDIO_FILE_ENCODING_MULAW_8, - AUDIO_FILE_ENCODING_LINEAR_8, - AUDIO_FILE_ENCODING_LINEAR_16, - AUDIO_FILE_ENCODING_LINEAR_24, - AUDIO_FILE_ENCODING_LINEAR_32, - AUDIO_FILE_ENCODING_ALAW_8] - -class Error(Exception): - pass - -def _read_u32(file): - x = 0 - for i in range(4): - byte = file.read(1) - if not byte: - raise EOFError - x = x*256 + ord(byte) - return x - -def _write_u32(file, x): - data = [] - for i in range(4): - d, m = divmod(x, 256) - data.insert(0, int(m)) - x = d - file.write(bytes(data)) - -class Au_read: - - def __init__(self, f): - if type(f) == type(''): - import builtins - f = builtins.open(f, 'rb') - self._opened = True - else: - self._opened = False - self.initfp(f) - - def __del__(self): - if self._file: - self.close() - - def __enter__(self): - return self - - def __exit__(self, *args): - self.close() - - def initfp(self, file): - self._file = file - self._soundpos = 0 - magic = int(_read_u32(file)) - if magic != AUDIO_FILE_MAGIC: - raise Error('bad magic number') - self._hdr_size = int(_read_u32(file)) - if self._hdr_size < 24: - raise Error('header size too small') - if self._hdr_size > 100: - raise Error('header size ridiculously large') - self._data_size = _read_u32(file) - if self._data_size != AUDIO_UNKNOWN_SIZE: - self._data_size = int(self._data_size) - self._encoding = int(_read_u32(file)) - if self._encoding not in _simple_encodings: - raise Error('encoding not (yet) supported') - if self._encoding in (AUDIO_FILE_ENCODING_MULAW_8, - AUDIO_FILE_ENCODING_ALAW_8): - self._sampwidth = 2 - self._framesize = 1 - elif self._encoding == AUDIO_FILE_ENCODING_LINEAR_8: - self._framesize = self._sampwidth = 1 - elif self._encoding == AUDIO_FILE_ENCODING_LINEAR_16: - self._framesize = self._sampwidth = 2 - elif self._encoding == AUDIO_FILE_ENCODING_LINEAR_24: - self._framesize = self._sampwidth = 3 - elif self._encoding == AUDIO_FILE_ENCODING_LINEAR_32: - self._framesize = self._sampwidth = 4 - else: - raise Error('unknown encoding') - self._framerate = int(_read_u32(file)) - self._nchannels = int(_read_u32(file)) - if not self._nchannels: - raise Error('bad # of channels') - self._framesize = self._framesize * self._nchannels - if self._hdr_size > 24: - self._info = file.read(self._hdr_size - 24) - self._info, _, _ = self._info.partition(b'\0') - else: - self._info = b'' - try: - self._data_pos = file.tell() - except (AttributeError, OSError): - self._data_pos = None - - def getfp(self): - return self._file - - def getnchannels(self): - return self._nchannels - - def getsampwidth(self): - return self._sampwidth - - def getframerate(self): - return self._framerate - - def getnframes(self): - if self._data_size == AUDIO_UNKNOWN_SIZE: - return AUDIO_UNKNOWN_SIZE - if self._encoding in _simple_encodings: - return self._data_size // self._framesize - return 0 # XXX--must do some arithmetic here - - def getcomptype(self): - if self._encoding == AUDIO_FILE_ENCODING_MULAW_8: - return 'ULAW' - elif self._encoding == AUDIO_FILE_ENCODING_ALAW_8: - return 'ALAW' - else: - return 'NONE' - - def getcompname(self): - if self._encoding == AUDIO_FILE_ENCODING_MULAW_8: - return 'CCITT G.711 u-law' - elif self._encoding == AUDIO_FILE_ENCODING_ALAW_8: - return 'CCITT G.711 A-law' - else: - return 'not compressed' - - def getparams(self): - return _sunau_params(self.getnchannels(), self.getsampwidth(), - self.getframerate(), self.getnframes(), - self.getcomptype(), self.getcompname()) - - def getmarkers(self): - return None - - def getmark(self, id): - raise Error('no marks') - - def readframes(self, nframes): - if self._encoding in _simple_encodings: - if nframes == AUDIO_UNKNOWN_SIZE: - data = self._file.read() - else: - data = self._file.read(nframes * self._framesize) - self._soundpos += len(data) // self._framesize - if self._encoding == AUDIO_FILE_ENCODING_MULAW_8: - import audioop - data = audioop.ulaw2lin(data, self._sampwidth) - return data - return None # XXX--not implemented yet - - def rewind(self): - if self._data_pos is None: - raise OSError('cannot seek') - self._file.seek(self._data_pos) - self._soundpos = 0 - - def tell(self): - return self._soundpos - - def setpos(self, pos): - if pos < 0 or pos > self.getnframes(): - raise Error('position not in range') - if self._data_pos is None: - raise OSError('cannot seek') - self._file.seek(self._data_pos + pos * self._framesize) - self._soundpos = pos - - def close(self): - file = self._file - if file: - self._file = None - if self._opened: - file.close() - -class Au_write: - - def __init__(self, f): - if type(f) == type(''): - import builtins - f = builtins.open(f, 'wb') - self._opened = True - else: - self._opened = False - self.initfp(f) - - def __del__(self): - if self._file: - self.close() - self._file = None - - def __enter__(self): - return self - - def __exit__(self, *args): - self.close() - - def initfp(self, file): - self._file = file - self._framerate = 0 - self._nchannels = 0 - self._sampwidth = 0 - self._framesize = 0 - self._nframes = AUDIO_UNKNOWN_SIZE - self._nframeswritten = 0 - self._datawritten = 0 - self._datalength = 0 - self._info = b'' - self._comptype = 'ULAW' # default is U-law - - def setnchannels(self, nchannels): - if self._nframeswritten: - raise Error('cannot change parameters after starting to write') - if nchannels not in (1, 2, 4): - raise Error('only 1, 2, or 4 channels supported') - self._nchannels = nchannels - - def getnchannels(self): - if not self._nchannels: - raise Error('number of channels not set') - return self._nchannels - - def setsampwidth(self, sampwidth): - if self._nframeswritten: - raise Error('cannot change parameters after starting to write') - if sampwidth not in (1, 2, 3, 4): - raise Error('bad sample width') - self._sampwidth = sampwidth - - def getsampwidth(self): - if not self._framerate: - raise Error('sample width not specified') - return self._sampwidth - - def setframerate(self, framerate): - if self._nframeswritten: - raise Error('cannot change parameters after starting to write') - self._framerate = framerate - - def getframerate(self): - if not self._framerate: - raise Error('frame rate not set') - return self._framerate - - def setnframes(self, nframes): - if self._nframeswritten: - raise Error('cannot change parameters after starting to write') - if nframes < 0: - raise Error('# of frames cannot be negative') - self._nframes = nframes - - def getnframes(self): - return self._nframeswritten - - def setcomptype(self, type, name): - if type in ('NONE', 'ULAW'): - self._comptype = type - else: - raise Error('unknown compression type') - - def getcomptype(self): - return self._comptype - - def getcompname(self): - if self._comptype == 'ULAW': - return 'CCITT G.711 u-law' - elif self._comptype == 'ALAW': - return 'CCITT G.711 A-law' - else: - return 'not compressed' - - def setparams(self, params): - nchannels, sampwidth, framerate, nframes, comptype, compname = params - self.setnchannels(nchannels) - self.setsampwidth(sampwidth) - self.setframerate(framerate) - self.setnframes(nframes) - self.setcomptype(comptype, compname) - - def getparams(self): - return _sunau_params(self.getnchannels(), self.getsampwidth(), - self.getframerate(), self.getnframes(), - self.getcomptype(), self.getcompname()) - - def tell(self): - return self._nframeswritten - - def writeframesraw(self, data): - if not isinstance(data, (bytes, bytearray)): - data = memoryview(data).cast('B') - self._ensure_header_written() - if self._comptype == 'ULAW': - import audioop - data = audioop.lin2ulaw(data, self._sampwidth) - nframes = len(data) // self._framesize - self._file.write(data) - self._nframeswritten = self._nframeswritten + nframes - self._datawritten = self._datawritten + len(data) - - def writeframes(self, data): - self.writeframesraw(data) - if self._nframeswritten != self._nframes or \ - self._datalength != self._datawritten: - self._patchheader() - - def close(self): - if self._file: - try: - self._ensure_header_written() - if self._nframeswritten != self._nframes or \ - self._datalength != self._datawritten: - self._patchheader() - self._file.flush() - finally: - file = self._file - self._file = None - if self._opened: - file.close() - - # - # private methods - # - - def _ensure_header_written(self): - if not self._nframeswritten: - if not self._nchannels: - raise Error('# of channels not specified') - if not self._sampwidth: - raise Error('sample width not specified') - if not self._framerate: - raise Error('frame rate not specified') - self._write_header() - - def _write_header(self): - if self._comptype == 'NONE': - if self._sampwidth == 1: - encoding = AUDIO_FILE_ENCODING_LINEAR_8 - self._framesize = 1 - elif self._sampwidth == 2: - encoding = AUDIO_FILE_ENCODING_LINEAR_16 - self._framesize = 2 - elif self._sampwidth == 3: - encoding = AUDIO_FILE_ENCODING_LINEAR_24 - self._framesize = 3 - elif self._sampwidth == 4: - encoding = AUDIO_FILE_ENCODING_LINEAR_32 - self._framesize = 4 - else: - raise Error('internal error') - elif self._comptype == 'ULAW': - encoding = AUDIO_FILE_ENCODING_MULAW_8 - self._framesize = 1 - else: - raise Error('internal error') - self._framesize = self._framesize * self._nchannels - _write_u32(self._file, AUDIO_FILE_MAGIC) - header_size = 25 + len(self._info) - header_size = (header_size + 7) & ~7 - _write_u32(self._file, header_size) - if self._nframes == AUDIO_UNKNOWN_SIZE: - length = AUDIO_UNKNOWN_SIZE - else: - length = self._nframes * self._framesize - try: - self._form_length_pos = self._file.tell() - except (AttributeError, OSError): - self._form_length_pos = None - _write_u32(self._file, length) - self._datalength = length - _write_u32(self._file, encoding) - _write_u32(self._file, self._framerate) - _write_u32(self._file, self._nchannels) - self._file.write(self._info) - self._file.write(b'\0'*(header_size - len(self._info) - 24)) - - def _patchheader(self): - if self._form_length_pos is None: - raise OSError('cannot seek') - self._file.seek(self._form_length_pos) - _write_u32(self._file, self._datawritten) - self._datalength = self._datawritten - self._file.seek(0, 2) - -def open(f, mode=None): - if mode is None: - if hasattr(f, 'mode'): - mode = f.mode - else: - mode = 'rb' - if mode in ('r', 'rb'): - return Au_read(f) - elif mode in ('w', 'wb'): - return Au_write(f) - else: - raise Error("mode must be 'r', 'rb', 'w', or 'wb'") - -def openfp(f, mode=None): - warnings.warn("sunau.openfp is deprecated since Python 3.7. " - "Use sunau.open instead.", DeprecationWarning, stacklevel=2) - return open(f, mode=mode) diff --git a/Lib/tarfile.py b/Lib/tarfile.py index dea150e8db..04fda11597 100755 --- a/Lib/tarfile.py +++ b/Lib/tarfile.py @@ -46,6 +46,7 @@ import struct import copy import re +import warnings try: import pwd @@ -57,19 +58,19 @@ grp = None # os.symlink on Windows prior to 6.0 raises NotImplementedError -symlink_exception = (AttributeError, NotImplementedError) -try: - # OSError (winerror=1314) will be raised if the caller does not hold the - # SeCreateSymbolicLinkPrivilege privilege - symlink_exception += (OSError,) -except NameError: - pass +# OSError (winerror=1314) will be raised if the caller does not hold the +# SeCreateSymbolicLinkPrivilege privilege +symlink_exception = (AttributeError, NotImplementedError, OSError) # from tarfile import * __all__ = ["TarFile", "TarInfo", "is_tarfile", "TarError", "ReadError", "CompressionError", "StreamError", "ExtractError", "HeaderError", "ENCODING", "USTAR_FORMAT", "GNU_FORMAT", "PAX_FORMAT", - "DEFAULT_FORMAT", "open"] + "DEFAULT_FORMAT", "open","fully_trusted_filter", "data_filter", + "tar_filter", "FilterError", "AbsoluteLinkError", + "OutsideDestinationError", "SpecialFileError", "AbsolutePathError", + "LinkOutsideDestinationError"] + #--------------------------------------------------------- # tar constants @@ -158,6 +159,8 @@ def stn(s, length, encoding, errors): """Convert a string to a null-terminated bytes object. """ + if s is None: + raise ValueError("metadata cannot contain None") s = s.encode(encoding, errors) return s[:length] + (length - len(s)) * NUL @@ -328,15 +331,17 @@ def write(self, s): class _Stream: """Class that serves as an adapter between TarFile and a stream-like object. The stream-like object only - needs to have a read() or write() method and is accessed - blockwise. Use of gzip or bzip2 compression is possible. - A stream-like object could be for example: sys.stdin, - sys.stdout, a socket, a tape device etc. + needs to have a read() or write() method that works with bytes, + and the method is accessed blockwise. + Use of gzip or bzip2 compression is possible. + A stream-like object could be for example: sys.stdin.buffer, + sys.stdout.buffer, a socket, a tape device etc. _Stream is intended to be used only internally. """ - def __init__(self, name, mode, comptype, fileobj, bufsize): + def __init__(self, name, mode, comptype, fileobj, bufsize, + compresslevel): """Construct a _Stream object. """ self._extfileobj = True @@ -368,10 +373,10 @@ def __init__(self, name, mode, comptype, fileobj, bufsize): self.zlib = zlib self.crc = zlib.crc32(b"") if mode == "r": - self._init_read_gz() self.exception = zlib.error + self._init_read_gz() else: - self._init_write_gz() + self._init_write_gz(compresslevel) elif comptype == "bz2": try: @@ -383,13 +388,17 @@ def __init__(self, name, mode, comptype, fileobj, bufsize): self.cmp = bz2.BZ2Decompressor() self.exception = OSError else: - self.cmp = bz2.BZ2Compressor() + self.cmp = bz2.BZ2Compressor(compresslevel) elif comptype == "xz": try: import lzma except ImportError: raise CompressionError("lzma module is not available") from None + + # XXX: RUSTPYTHON; xz is not supported yet + raise CompressionError("lzma module is not available") from None + if mode == "r": self.dbuf = b"" self.cmp = lzma.LZMADecompressor() @@ -410,13 +419,14 @@ def __del__(self): if hasattr(self, "closed") and not self.closed: self.close() - def _init_write_gz(self): + def _init_write_gz(self, compresslevel): """Initialize for writing with gzip compression. """ - self.cmp = self.zlib.compressobj(9, self.zlib.DEFLATED, - -self.zlib.MAX_WBITS, - self.zlib.DEF_MEM_LEVEL, - 0) + self.cmp = self.zlib.compressobj(compresslevel, + self.zlib.DEFLATED, + -self.zlib.MAX_WBITS, + self.zlib.DEF_MEM_LEVEL, + 0) timestamp = struct.pack("" % (self.__class__.__name__,self.name,id(self)) + def replace(self, *, + name=_KEEP, mtime=_KEEP, mode=_KEEP, linkname=_KEEP, + uid=_KEEP, gid=_KEEP, uname=_KEEP, gname=_KEEP, + deep=True, _KEEP=_KEEP): + """Return a deep copy of self with the given attributes replaced. + """ + if deep: + result = copy.deepcopy(self) + else: + result = copy.copy(self) + if name is not _KEEP: + result.name = name + if mtime is not _KEEP: + result.mtime = mtime + if mode is not _KEEP: + result.mode = mode + if linkname is not _KEEP: + result.linkname = linkname + if uid is not _KEEP: + result.uid = uid + if gid is not _KEEP: + result.gid = gid + if uname is not _KEEP: + result.uname = uname + if gname is not _KEEP: + result.gname = gname + return result + def get_info(self): """Return the TarInfo's attributes as a dictionary. """ + if self.mode is None: + mode = None + else: + mode = self.mode & 0o7777 info = { "name": self.name, - "mode": self.mode & 0o7777, + "mode": mode, "uid": self.uid, "gid": self.gid, "size": self.size, @@ -820,6 +987,9 @@ def tobuf(self, format=DEFAULT_FORMAT, encoding=ENCODING, errors="surrogateescap """Return a tar header as a string of 512 byte blocks. """ info = self.get_info() + for name, value in info.items(): + if value is None: + raise ValueError("%s may not be None" % name) if format == USTAR_FORMAT: return self.create_ustar_header(info, encoding, errors) @@ -950,6 +1120,12 @@ def _create_header(info, format, encoding, errors): devmajor = stn("", 8, encoding, errors) devminor = stn("", 8, encoding, errors) + # None values in metadata should cause ValueError. + # itn()/stn() do this for all fields except type. + filetype = info.get("type", REGTYPE) + if filetype is None: + raise ValueError("TarInfo.type must not be None") + parts = [ stn(info.get("name", ""), 100, encoding, errors), itn(info.get("mode", 0) & 0o7777, 8, format), @@ -958,7 +1134,7 @@ def _create_header(info, format, encoding, errors): itn(info.get("size", 0), 12, format), itn(info.get("mtime", 0), 12, format), b" ", # checksum field - info.get("type", REGTYPE), + filetype, stn(info.get("linkname", ""), 100, encoding, errors), info.get("magic", POSIX_MAGIC), stn(info.get("uname", ""), 32, encoding, errors), @@ -1264,11 +1440,7 @@ def _proc_pax(self, tarfile): # the newline. keyword and value are both UTF-8 encoded strings. regex = re.compile(br"(\d+) ([^=]+)=") pos = 0 - while True: - match = regex.match(buf, pos) - if not match: - break - + while match := regex.match(buf, pos): length, keyword = match.groups() length = int(length) if length == 0: @@ -1468,6 +1640,8 @@ class TarFile(object): fileobject = ExFileObject # The file-object for extractfile(). + extraction_filter = None # The default filter for extraction. + def __init__(self, name=None, mode="r", fileobj=None, format=None, tarinfo=None, dereference=None, ignore_zeros=None, encoding=None, errors="surrogateescape", pax_headers=None, debug=None, @@ -1659,7 +1833,9 @@ def not_compressed(comptype): if filemode not in ("r", "w"): raise ValueError("mode must be 'r' or 'w'") - stream = _Stream(name, filemode, comptype, fileobj, bufsize) + compresslevel = kwargs.pop("compresslevel", 9) + stream = _Stream(name, filemode, comptype, fileobj, bufsize, + compresslevel) try: t = cls(name, filemode, stream, **kwargs) except: @@ -1755,6 +1931,9 @@ def xzopen(cls, name, mode="r", fileobj=None, preset=None, **kwargs): except ImportError: raise CompressionError("lzma module is not available") from None + # XXX: RUSTPYTHON; xz is not supported yet + raise CompressionError("lzma module is not available") from None + fileobj = LZMAFile(fileobj or name, mode, preset=preset) try: @@ -1940,7 +2119,10 @@ def list(self, verbose=True, *, members=None): members = self for tarinfo in members: if verbose: - _safe_print(stat.filemode(tarinfo.mode)) + if tarinfo.mode is None: + _safe_print("??????????") + else: + _safe_print(stat.filemode(tarinfo.mode)) _safe_print("%s/%s" % (tarinfo.uname or tarinfo.uid, tarinfo.gname or tarinfo.gid)) if tarinfo.ischr() or tarinfo.isblk(): @@ -1948,8 +2130,11 @@ def list(self, verbose=True, *, members=None): ("%d,%d" % (tarinfo.devmajor, tarinfo.devminor))) else: _safe_print("%10d" % tarinfo.size) - _safe_print("%d-%02d-%02d %02d:%02d:%02d" \ - % time.localtime(tarinfo.mtime)[:6]) + if tarinfo.mtime is None: + _safe_print("????-??-?? ??:??:??") + else: + _safe_print("%d-%02d-%02d %02d:%02d:%02d" \ + % time.localtime(tarinfo.mtime)[:6]) _safe_print(tarinfo.name + ("/" if tarinfo.isdir() else "")) @@ -2036,32 +2221,63 @@ def addfile(self, tarinfo, fileobj=None): self.members.append(tarinfo) - def extractall(self, path=".", members=None, *, numeric_owner=False): + def _get_filter_function(self, filter): + if filter is None: + filter = self.extraction_filter + if filter is None: + warnings.warn( + 'Python 3.14 will, by default, filter extracted tar ' + + 'archives and reject files or modify their metadata. ' + + 'Use the filter argument to control this behavior.', + DeprecationWarning) + return fully_trusted_filter + if isinstance(filter, str): + raise TypeError( + 'String names are not supported for ' + + 'TarFile.extraction_filter. Use a function such as ' + + 'tarfile.data_filter directly.') + return filter + if callable(filter): + return filter + try: + return _NAMED_FILTERS[filter] + except KeyError: + raise ValueError(f"filter {filter!r} not found") from None + + def extractall(self, path=".", members=None, *, numeric_owner=False, + filter=None): """Extract all members from the archive to the current working directory and set owner, modification time and permissions on directories afterwards. `path' specifies a different directory to extract to. `members' is optional and must be a subset of the list returned by getmembers(). If `numeric_owner` is True, only the numbers for user/group names are used and not the names. + + The `filter` function will be called on each member just + before extraction. + It can return a changed TarInfo or None to skip the member. + String names of common filters are accepted. """ directories = [] + filter_function = self._get_filter_function(filter) if members is None: members = self - for tarinfo in members: + for member in members: + tarinfo = self._get_extract_tarinfo(member, filter_function, path) + if tarinfo is None: + continue if tarinfo.isdir(): - # Extract directories with a safe mode. + # For directories, delay setting attributes until later, + # since permissions can interfere with extraction and + # extracting contents can reset mtime. directories.append(tarinfo) - tarinfo = copy.copy(tarinfo) - tarinfo.mode = 0o700 - # Do not set_attrs directories, as we will do that further down - self.extract(tarinfo, path, set_attrs=not tarinfo.isdir(), - numeric_owner=numeric_owner) + self._extract_one(tarinfo, path, set_attrs=not tarinfo.isdir(), + numeric_owner=numeric_owner) # Reverse sort directories. - directories.sort(key=lambda a: a.name) - directories.reverse() + directories.sort(key=lambda a: a.name, reverse=True) # Set correct owner, mtime and filemode on directories. for tarinfo in directories: @@ -2071,12 +2287,10 @@ def extractall(self, path=".", members=None, *, numeric_owner=False): self.utime(tarinfo, dirpath) self.chmod(tarinfo, dirpath) except ExtractError as e: - if self.errorlevel > 1: - raise - else: - self._dbg(1, "tarfile: %s" % e) + self._handle_nonfatal_error(e) - def extract(self, member, path="", set_attrs=True, *, numeric_owner=False): + def extract(self, member, path="", set_attrs=True, *, numeric_owner=False, + filter=None): """Extract a member from the archive to the current working directory, using its full name. Its file information is extracted as accurately as possible. `member' may be a filename or a TarInfo object. You can @@ -2084,35 +2298,70 @@ def extract(self, member, path="", set_attrs=True, *, numeric_owner=False): mtime, mode) are set unless `set_attrs' is False. If `numeric_owner` is True, only the numbers for user/group names are used and not the names. + + The `filter` function will be called before extraction. + It can return a changed TarInfo or None to skip the member. + String names of common filters are accepted. """ - self._check("r") + filter_function = self._get_filter_function(filter) + tarinfo = self._get_extract_tarinfo(member, filter_function, path) + if tarinfo is not None: + self._extract_one(tarinfo, path, set_attrs, numeric_owner) + def _get_extract_tarinfo(self, member, filter_function, path): + """Get filtered TarInfo (or None) from member, which might be a str""" if isinstance(member, str): tarinfo = self.getmember(member) else: tarinfo = member + unfiltered = tarinfo + try: + tarinfo = filter_function(tarinfo, path) + except (OSError, FilterError) as e: + self._handle_fatal_error(e) + except ExtractError as e: + self._handle_nonfatal_error(e) + if tarinfo is None: + self._dbg(2, "tarfile: Excluded %r" % unfiltered.name) + return None # Prepare the link target for makelink(). if tarinfo.islnk(): + tarinfo = copy.copy(tarinfo) tarinfo._link_target = os.path.join(path, tarinfo.linkname) + return tarinfo + + def _extract_one(self, tarinfo, path, set_attrs, numeric_owner): + """Extract from filtered tarinfo to disk""" + self._check("r") try: self._extract_member(tarinfo, os.path.join(path, tarinfo.name), set_attrs=set_attrs, numeric_owner=numeric_owner) except OSError as e: - if self.errorlevel > 0: - raise - else: - if e.filename is None: - self._dbg(1, "tarfile: %s" % e.strerror) - else: - self._dbg(1, "tarfile: %s %r" % (e.strerror, e.filename)) + self._handle_fatal_error(e) except ExtractError as e: - if self.errorlevel > 1: - raise + self._handle_nonfatal_error(e) + + def _handle_nonfatal_error(self, e): + """Handle non-fatal error (ExtractError) according to errorlevel""" + if self.errorlevel > 1: + raise + else: + self._dbg(1, "tarfile: %s" % e) + + def _handle_fatal_error(self, e): + """Handle "fatal" error according to self.errorlevel""" + if self.errorlevel > 0: + raise + elif isinstance(e, OSError): + if e.filename is None: + self._dbg(1, "tarfile: %s" % e.strerror) else: - self._dbg(1, "tarfile: %s" % e) + self._dbg(1, "tarfile: %s %r" % (e.strerror, e.filename)) + else: + self._dbg(1, "tarfile: %s %s" % (type(e).__name__, e)) def extractfile(self, member): """Extract a member from the archive as a file object. `member' may be @@ -2199,11 +2448,16 @@ def makedir(self, tarinfo, targetpath): """Make a directory called targetpath. """ try: - # Use a safe mode for the directory, the real mode is set - # later in _extract_member(). - os.mkdir(targetpath, 0o700) + if tarinfo.mode is None: + # Use the system's default mode + os.mkdir(targetpath) + else: + # Use a safe mode for the directory, the real mode is set + # later in _extract_member(). + os.mkdir(targetpath, 0o700) except FileExistsError: - pass + if not os.path.isdir(targetpath): + raise def makefile(self, tarinfo, targetpath): """Make a file called targetpath. @@ -2244,6 +2498,9 @@ def makedev(self, tarinfo, targetpath): raise ExtractError("special devices not supported by system") mode = tarinfo.mode + if mode is None: + # Use mknod's default + mode = 0o600 if tarinfo.isblk(): mode |= stat.S_IFBLK else: @@ -2265,7 +2522,6 @@ def makelink(self, tarinfo, targetpath): os.unlink(targetpath) os.symlink(tarinfo.linkname, targetpath) else: - # See extract(). if os.path.exists(tarinfo._link_target): os.link(tarinfo._link_target, targetpath) else: @@ -2290,15 +2546,19 @@ def chown(self, tarinfo, targetpath, numeric_owner): u = tarinfo.uid if not numeric_owner: try: - if grp: + if grp and tarinfo.gname: g = grp.getgrnam(tarinfo.gname)[2] except KeyError: pass try: - if pwd: + if pwd and tarinfo.uname: u = pwd.getpwnam(tarinfo.uname)[2] except KeyError: pass + if g is None: + g = -1 + if u is None: + u = -1 try: if tarinfo.issym() and hasattr(os, "lchown"): os.lchown(targetpath, u, g) @@ -2310,6 +2570,8 @@ def chown(self, tarinfo, targetpath, numeric_owner): def chmod(self, tarinfo, targetpath): """Set file permissions of targetpath according to tarinfo. """ + if tarinfo.mode is None: + return try: os.chmod(targetpath, tarinfo.mode) except OSError as e: @@ -2318,10 +2580,13 @@ def chmod(self, tarinfo, targetpath): def utime(self, tarinfo, targetpath): """Set modification time of targetpath according to tarinfo. """ + mtime = tarinfo.mtime + if mtime is None: + return if not hasattr(os, 'utime'): return try: - os.utime(targetpath, (tarinfo.mtime, tarinfo.mtime)) + os.utime(targetpath, (mtime, mtime)) except OSError as e: raise ExtractError("could not change modification time") from e @@ -2339,6 +2604,8 @@ def next(self): # Advance the file pointer. if self.offset != self.fileobj.tell(): + if self.offset == 0: + return None self.fileobj.seek(self.offset - 1) if not self.fileobj.read(1): raise ReadError("unexpected end of data") @@ -2397,13 +2664,26 @@ def _getmember(self, name, tarinfo=None, normalize=False): members = self.getmembers() # Limit the member search list up to tarinfo. + skipping = False if tarinfo is not None: - members = members[:members.index(tarinfo)] + try: + index = members.index(tarinfo) + except ValueError: + # The given starting point might be a (modified) copy. + # We'll later skip members until we find an equivalent. + skipping = True + else: + # Happy fast path + members = members[:index] if normalize: name = os.path.normpath(name) for member in reversed(members): + if skipping: + if tarinfo.offset == member.offset: + skipping = False + continue if normalize: member_name = os.path.normpath(member.name) else: @@ -2412,14 +2692,16 @@ def _getmember(self, name, tarinfo=None, normalize=False): if name == member_name: return member + if skipping: + # Starting point was not found + raise ValueError(tarinfo) + def _load(self): """Read through the entire archive file and look for readable members. """ - while True: - tarinfo = self.next() - if tarinfo is None: - break + while self.next() is not None: + pass self._loaded = True def _check(self, mode=None): @@ -2504,6 +2786,7 @@ def __exit__(self, type, value, traceback): #-------------------- # exported functions #-------------------- + def is_tarfile(name): """Return True if name points to a tar archive that we are able to handle, else return False. @@ -2512,7 +2795,9 @@ def is_tarfile(name): """ try: if hasattr(name, "read"): + pos = name.tell() t = open(fileobj=name) + name.seek(pos) else: t = open(name) t.close() @@ -2530,6 +2815,10 @@ def main(): parser = argparse.ArgumentParser(description=description) parser.add_argument('-v', '--verbose', action='store_true', default=False, help='Verbose output') + parser.add_argument('--filter', metavar='', + choices=_NAMED_FILTERS, + help='Filter for extraction') + group = parser.add_mutually_exclusive_group(required=True) group.add_argument('-l', '--list', metavar='', help='Show listing of a tarfile') @@ -2541,8 +2830,12 @@ def main(): help='Create tarfile from sources') group.add_argument('-t', '--test', metavar='', help='Test if a tarfile is valid') + args = parser.parse_args() + if args.filter and args.extract is None: + parser.exit(1, '--filter is only valid for extraction\n') + if args.test is not None: src = args.test if is_tarfile(src): @@ -2573,7 +2866,7 @@ def main(): if is_tarfile(src): with TarFile.open(src, 'r:*') as tf: - tf.extractall(path=curdir) + tf.extractall(path=curdir, filter=args.filter) if args.verbose: if curdir == '.': msg = '{!r} file is extracted.'.format(src) diff --git a/Lib/telnetlib.py b/Lib/telnetlib.py deleted file mode 100644 index 8ce053e881..0000000000 --- a/Lib/telnetlib.py +++ /dev/null @@ -1,677 +0,0 @@ -r"""TELNET client class. - -Based on RFC 854: TELNET Protocol Specification, by J. Postel and -J. Reynolds - -Example: - ->>> from telnetlib import Telnet ->>> tn = Telnet('www.python.org', 79) # connect to finger port ->>> tn.write(b'guido\r\n') ->>> print(tn.read_all()) -Login Name TTY Idle When Where -guido Guido van Rossum pts/2 snag.cnri.reston.. - ->>> - -Note that read_all() won't read until eof -- it just reads some data --- but it guarantees to read at least one byte unless EOF is hit. - -It is possible to pass a Telnet object to a selector in order to wait until -more data is available. Note that in this case, read_eager() may return b'' -even if there was data on the socket, because the protocol negotiation may have -eaten the data. This is why EOFError is needed in some cases to distinguish -between "no data" and "connection closed" (since the socket also appears ready -for reading when it is closed). - -To do: -- option negotiation -- timeout should be intrinsic to the connection object instead of an - option on one of the read calls only - -""" - - -# Imported modules -import sys -import socket -import selectors -from time import monotonic as _time - -__all__ = ["Telnet"] - -# Tunable parameters -DEBUGLEVEL = 0 - -# Telnet protocol defaults -TELNET_PORT = 23 - -# Telnet protocol characters (don't change) -IAC = bytes([255]) # "Interpret As Command" -DONT = bytes([254]) -DO = bytes([253]) -WONT = bytes([252]) -WILL = bytes([251]) -theNULL = bytes([0]) - -SE = bytes([240]) # Subnegotiation End -NOP = bytes([241]) # No Operation -DM = bytes([242]) # Data Mark -BRK = bytes([243]) # Break -IP = bytes([244]) # Interrupt process -AO = bytes([245]) # Abort output -AYT = bytes([246]) # Are You There -EC = bytes([247]) # Erase Character -EL = bytes([248]) # Erase Line -GA = bytes([249]) # Go Ahead -SB = bytes([250]) # Subnegotiation Begin - - -# Telnet protocol options code (don't change) -# These ones all come from arpa/telnet.h -BINARY = bytes([0]) # 8-bit data path -ECHO = bytes([1]) # echo -RCP = bytes([2]) # prepare to reconnect -SGA = bytes([3]) # suppress go ahead -NAMS = bytes([4]) # approximate message size -STATUS = bytes([5]) # give status -TM = bytes([6]) # timing mark -RCTE = bytes([7]) # remote controlled transmission and echo -NAOL = bytes([8]) # negotiate about output line width -NAOP = bytes([9]) # negotiate about output page size -NAOCRD = bytes([10]) # negotiate about CR disposition -NAOHTS = bytes([11]) # negotiate about horizontal tabstops -NAOHTD = bytes([12]) # negotiate about horizontal tab disposition -NAOFFD = bytes([13]) # negotiate about formfeed disposition -NAOVTS = bytes([14]) # negotiate about vertical tab stops -NAOVTD = bytes([15]) # negotiate about vertical tab disposition -NAOLFD = bytes([16]) # negotiate about output LF disposition -XASCII = bytes([17]) # extended ascii character set -LOGOUT = bytes([18]) # force logout -BM = bytes([19]) # byte macro -DET = bytes([20]) # data entry terminal -SUPDUP = bytes([21]) # supdup protocol -SUPDUPOUTPUT = bytes([22]) # supdup output -SNDLOC = bytes([23]) # send location -TTYPE = bytes([24]) # terminal type -EOR = bytes([25]) # end or record -TUID = bytes([26]) # TACACS user identification -OUTMRK = bytes([27]) # output marking -TTYLOC = bytes([28]) # terminal location number -VT3270REGIME = bytes([29]) # 3270 regime -X3PAD = bytes([30]) # X.3 PAD -NAWS = bytes([31]) # window size -TSPEED = bytes([32]) # terminal speed -LFLOW = bytes([33]) # remote flow control -LINEMODE = bytes([34]) # Linemode option -XDISPLOC = bytes([35]) # X Display Location -OLD_ENVIRON = bytes([36]) # Old - Environment variables -AUTHENTICATION = bytes([37]) # Authenticate -ENCRYPT = bytes([38]) # Encryption option -NEW_ENVIRON = bytes([39]) # New - Environment variables -# the following ones come from -# http://www.iana.org/assignments/telnet-options -# Unfortunately, that document does not assign identifiers -# to all of them, so we are making them up -TN3270E = bytes([40]) # TN3270E -XAUTH = bytes([41]) # XAUTH -CHARSET = bytes([42]) # CHARSET -RSP = bytes([43]) # Telnet Remote Serial Port -COM_PORT_OPTION = bytes([44]) # Com Port Control Option -SUPPRESS_LOCAL_ECHO = bytes([45]) # Telnet Suppress Local Echo -TLS = bytes([46]) # Telnet Start TLS -KERMIT = bytes([47]) # KERMIT -SEND_URL = bytes([48]) # SEND-URL -FORWARD_X = bytes([49]) # FORWARD_X -PRAGMA_LOGON = bytes([138]) # TELOPT PRAGMA LOGON -SSPI_LOGON = bytes([139]) # TELOPT SSPI LOGON -PRAGMA_HEARTBEAT = bytes([140]) # TELOPT PRAGMA HEARTBEAT -EXOPL = bytes([255]) # Extended-Options-List -NOOPT = bytes([0]) - - -# poll/select have the advantage of not requiring any extra file descriptor, -# contrarily to epoll/kqueue (also, they require a single syscall). -if hasattr(selectors, 'PollSelector'): - _TelnetSelector = selectors.PollSelector -else: - _TelnetSelector = selectors.SelectSelector - - -class Telnet: - - """Telnet interface class. - - An instance of this class represents a connection to a telnet - server. The instance is initially not connected; the open() - method must be used to establish a connection. Alternatively, the - host name and optional port number can be passed to the - constructor, too. - - Don't try to reopen an already connected instance. - - This class has many read_*() methods. Note that some of them - raise EOFError when the end of the connection is read, because - they can return an empty string for other reasons. See the - individual doc strings. - - read_until(expected, [timeout]) - Read until the expected string has been seen, or a timeout is - hit (default is no timeout); may block. - - read_all() - Read all data until EOF; may block. - - read_some() - Read at least one byte or EOF; may block. - - read_very_eager() - Read all data available already queued or on the socket, - without blocking. - - read_eager() - Read either data already queued or some data available on the - socket, without blocking. - - read_lazy() - Read all data in the raw queue (processing it first), without - doing any socket I/O. - - read_very_lazy() - Reads all data in the cooked queue, without doing any socket - I/O. - - read_sb_data() - Reads available data between SB ... SE sequence. Don't block. - - set_option_negotiation_callback(callback) - Each time a telnet option is read on the input flow, this callback - (if set) is called with the following parameters : - callback(telnet socket, command, option) - option will be chr(0) when there is no option. - No other action is done afterwards by telnetlib. - - """ - - def __init__(self, host=None, port=0, - timeout=socket._GLOBAL_DEFAULT_TIMEOUT): - """Constructor. - - When called without arguments, create an unconnected instance. - With a hostname argument, it connects the instance; port number - and timeout are optional. - """ - self.debuglevel = DEBUGLEVEL - self.host = host - self.port = port - self.timeout = timeout - self.sock = None - self.rawq = b'' - self.irawq = 0 - self.cookedq = b'' - self.eof = 0 - self.iacseq = b'' # Buffer for IAC sequence. - self.sb = 0 # flag for SB and SE sequence. - self.sbdataq = b'' - self.option_callback = None - if host is not None: - self.open(host, port, timeout) - - def open(self, host, port=0, timeout=socket._GLOBAL_DEFAULT_TIMEOUT): - """Connect to a host. - - The optional second argument is the port number, which - defaults to the standard telnet port (23). - - Don't try to reopen an already connected instance. - """ - self.eof = 0 - if not port: - port = TELNET_PORT - self.host = host - self.port = port - self.timeout = timeout - sys.audit("telnetlib.Telnet.open", self, host, port) - self.sock = socket.create_connection((host, port), timeout) - - def __del__(self): - """Destructor -- close the connection.""" - self.close() - - def msg(self, msg, *args): - """Print a debug message, when the debug level is > 0. - - If extra arguments are present, they are substituted in the - message using the standard string formatting operator. - - """ - if self.debuglevel > 0: - print('Telnet(%s,%s):' % (self.host, self.port), end=' ') - if args: - print(msg % args) - else: - print(msg) - - def set_debuglevel(self, debuglevel): - """Set the debug level. - - The higher it is, the more debug output you get (on sys.stdout). - - """ - self.debuglevel = debuglevel - - def close(self): - """Close the connection.""" - sock = self.sock - self.sock = None - self.eof = True - self.iacseq = b'' - self.sb = 0 - if sock: - sock.close() - - def get_socket(self): - """Return the socket object used internally.""" - return self.sock - - def fileno(self): - """Return the fileno() of the socket object used internally.""" - return self.sock.fileno() - - def write(self, buffer): - """Write a string to the socket, doubling any IAC characters. - - Can block if the connection is blocked. May raise - OSError if the connection is closed. - - """ - if IAC in buffer: - buffer = buffer.replace(IAC, IAC+IAC) - sys.audit("telnetlib.Telnet.write", self, buffer) - self.msg("send %r", buffer) - self.sock.sendall(buffer) - - def read_until(self, match, timeout=None): - """Read until a given string is encountered or until timeout. - - When no match is found, return whatever is available instead, - possibly the empty string. Raise EOFError if the connection - is closed and no cooked data is available. - - """ - n = len(match) - self.process_rawq() - i = self.cookedq.find(match) - if i >= 0: - i = i+n - buf = self.cookedq[:i] - self.cookedq = self.cookedq[i:] - return buf - if timeout is not None: - deadline = _time() + timeout - with _TelnetSelector() as selector: - selector.register(self, selectors.EVENT_READ) - while not self.eof: - if selector.select(timeout): - i = max(0, len(self.cookedq)-n) - self.fill_rawq() - self.process_rawq() - i = self.cookedq.find(match, i) - if i >= 0: - i = i+n - buf = self.cookedq[:i] - self.cookedq = self.cookedq[i:] - return buf - if timeout is not None: - timeout = deadline - _time() - if timeout < 0: - break - return self.read_very_lazy() - - def read_all(self): - """Read all data until EOF; block until connection closed.""" - self.process_rawq() - while not self.eof: - self.fill_rawq() - self.process_rawq() - buf = self.cookedq - self.cookedq = b'' - return buf - - def read_some(self): - """Read at least one byte of cooked data unless EOF is hit. - - Return b'' if EOF is hit. Block if no data is immediately - available. - - """ - self.process_rawq() - while not self.cookedq and not self.eof: - self.fill_rawq() - self.process_rawq() - buf = self.cookedq - self.cookedq = b'' - return buf - - def read_very_eager(self): - """Read everything that's possible without blocking in I/O (eager). - - Raise EOFError if connection closed and no cooked data - available. Return b'' if no cooked data available otherwise. - Don't block unless in the midst of an IAC sequence. - - """ - self.process_rawq() - while not self.eof and self.sock_avail(): - self.fill_rawq() - self.process_rawq() - return self.read_very_lazy() - - def read_eager(self): - """Read readily available data. - - Raise EOFError if connection closed and no cooked data - available. Return b'' if no cooked data available otherwise. - Don't block unless in the midst of an IAC sequence. - - """ - self.process_rawq() - while not self.cookedq and not self.eof and self.sock_avail(): - self.fill_rawq() - self.process_rawq() - return self.read_very_lazy() - - def read_lazy(self): - """Process and return data that's already in the queues (lazy). - - Raise EOFError if connection closed and no data available. - Return b'' if no cooked data available otherwise. Don't block - unless in the midst of an IAC sequence. - - """ - self.process_rawq() - return self.read_very_lazy() - - def read_very_lazy(self): - """Return any data available in the cooked queue (very lazy). - - Raise EOFError if connection closed and no data available. - Return b'' if no cooked data available otherwise. Don't block. - - """ - buf = self.cookedq - self.cookedq = b'' - if not buf and self.eof and not self.rawq: - raise EOFError('telnet connection closed') - return buf - - def read_sb_data(self): - """Return any data available in the SB ... SE queue. - - Return b'' if no SB ... SE available. Should only be called - after seeing a SB or SE command. When a new SB command is - found, old unread SB data will be discarded. Don't block. - - """ - buf = self.sbdataq - self.sbdataq = b'' - return buf - - def set_option_negotiation_callback(self, callback): - """Provide a callback function called after each receipt of a telnet option.""" - self.option_callback = callback - - def process_rawq(self): - """Transfer from raw queue to cooked queue. - - Set self.eof when connection is closed. Don't block unless in - the midst of an IAC sequence. - - """ - buf = [b'', b''] - try: - while self.rawq: - c = self.rawq_getchar() - if not self.iacseq: - if c == theNULL: - continue - if c == b"\021": - continue - if c != IAC: - buf[self.sb] = buf[self.sb] + c - continue - else: - self.iacseq += c - elif len(self.iacseq) == 1: - # 'IAC: IAC CMD [OPTION only for WILL/WONT/DO/DONT]' - if c in (DO, DONT, WILL, WONT): - self.iacseq += c - continue - - self.iacseq = b'' - if c == IAC: - buf[self.sb] = buf[self.sb] + c - else: - if c == SB: # SB ... SE start. - self.sb = 1 - self.sbdataq = b'' - elif c == SE: - self.sb = 0 - self.sbdataq = self.sbdataq + buf[1] - buf[1] = b'' - if self.option_callback: - # Callback is supposed to look into - # the sbdataq - self.option_callback(self.sock, c, NOOPT) - else: - # We can't offer automatic processing of - # suboptions. Alas, we should not get any - # unless we did a WILL/DO before. - self.msg('IAC %d not recognized' % ord(c)) - elif len(self.iacseq) == 2: - cmd = self.iacseq[1:2] - self.iacseq = b'' - opt = c - if cmd in (DO, DONT): - self.msg('IAC %s %d', - cmd == DO and 'DO' or 'DONT', ord(opt)) - if self.option_callback: - self.option_callback(self.sock, cmd, opt) - else: - self.sock.sendall(IAC + WONT + opt) - elif cmd in (WILL, WONT): - self.msg('IAC %s %d', - cmd == WILL and 'WILL' or 'WONT', ord(opt)) - if self.option_callback: - self.option_callback(self.sock, cmd, opt) - else: - self.sock.sendall(IAC + DONT + opt) - except EOFError: # raised by self.rawq_getchar() - self.iacseq = b'' # Reset on EOF - self.sb = 0 - pass - self.cookedq = self.cookedq + buf[0] - self.sbdataq = self.sbdataq + buf[1] - - def rawq_getchar(self): - """Get next char from raw queue. - - Block if no data is immediately available. Raise EOFError - when connection is closed. - - """ - if not self.rawq: - self.fill_rawq() - if self.eof: - raise EOFError - c = self.rawq[self.irawq:self.irawq+1] - self.irawq = self.irawq + 1 - if self.irawq >= len(self.rawq): - self.rawq = b'' - self.irawq = 0 - return c - - def fill_rawq(self): - """Fill raw queue from exactly one recv() system call. - - Block if no data is immediately available. Set self.eof when - connection is closed. - - """ - if self.irawq >= len(self.rawq): - self.rawq = b'' - self.irawq = 0 - # The buffer size should be fairly small so as to avoid quadratic - # behavior in process_rawq() above - buf = self.sock.recv(50) - self.msg("recv %r", buf) - self.eof = (not buf) - self.rawq = self.rawq + buf - - def sock_avail(self): - """Test whether data is available on the socket.""" - with _TelnetSelector() as selector: - selector.register(self, selectors.EVENT_READ) - return bool(selector.select(0)) - - def interact(self): - """Interaction function, emulates a very dumb telnet client.""" - if sys.platform == "win32": - self.mt_interact() - return - with _TelnetSelector() as selector: - selector.register(self, selectors.EVENT_READ) - selector.register(sys.stdin, selectors.EVENT_READ) - - while True: - for key, events in selector.select(): - if key.fileobj is self: - try: - text = self.read_eager() - except EOFError: - print('*** Connection closed by remote host ***') - return - if text: - sys.stdout.write(text.decode('ascii')) - sys.stdout.flush() - elif key.fileobj is sys.stdin: - line = sys.stdin.readline().encode('ascii') - if not line: - return - self.write(line) - - def mt_interact(self): - """Multithreaded version of interact().""" - import _thread - _thread.start_new_thread(self.listener, ()) - while 1: - line = sys.stdin.readline() - if not line: - break - self.write(line.encode('ascii')) - - def listener(self): - """Helper for mt_interact() -- this executes in the other thread.""" - while 1: - try: - data = self.read_eager() - except EOFError: - print('*** Connection closed by remote host ***') - return - if data: - sys.stdout.write(data.decode('ascii')) - else: - sys.stdout.flush() - - def expect(self, list, timeout=None): - """Read until one from a list of a regular expressions matches. - - The first argument is a list of regular expressions, either - compiled (re.Pattern instances) or uncompiled (strings). - The optional second argument is a timeout, in seconds; default - is no timeout. - - Return a tuple of three items: the index in the list of the - first regular expression that matches; the re.Match object - returned; and the text read up till and including the match. - - If EOF is read and no text was read, raise EOFError. - Otherwise, when nothing matches, return (-1, None, text) where - text is the text received so far (may be the empty string if a - timeout happened). - - If a regular expression ends with a greedy match (e.g. '.*') - or if more than one expression can match the same input, the - results are undeterministic, and may depend on the I/O timing. - - """ - re = None - list = list[:] - indices = range(len(list)) - for i in indices: - if not hasattr(list[i], "search"): - if not re: import re - list[i] = re.compile(list[i]) - if timeout is not None: - deadline = _time() + timeout - with _TelnetSelector() as selector: - selector.register(self, selectors.EVENT_READ) - while not self.eof: - self.process_rawq() - for i in indices: - m = list[i].search(self.cookedq) - if m: - e = m.end() - text = self.cookedq[:e] - self.cookedq = self.cookedq[e:] - return (i, m, text) - if timeout is not None: - ready = selector.select(timeout) - timeout = deadline - _time() - if not ready: - if timeout < 0: - break - else: - continue - self.fill_rawq() - text = self.read_very_lazy() - if not text and self.eof: - raise EOFError - return (-1, None, text) - - def __enter__(self): - return self - - def __exit__(self, type, value, traceback): - self.close() - - -def test(): - """Test program for telnetlib. - - Usage: python telnetlib.py [-d] ... [host [port]] - - Default host is localhost; default port is 23. - - """ - debuglevel = 0 - while sys.argv[1:] and sys.argv[1] == '-d': - debuglevel = debuglevel+1 - del sys.argv[1] - host = 'localhost' - if sys.argv[1:]: - host = sys.argv[1] - port = 0 - if sys.argv[2:]: - portstr = sys.argv[2] - try: - port = int(portstr) - except ValueError: - port = socket.getservbyname(portstr, 'tcp') - with Telnet() as tn: - tn.set_debuglevel(debuglevel) - tn.open(host, port, timeout=0.5) - tn.interact() - -if __name__ == '__main__': - test() diff --git a/Lib/test/cmath_testcases.txt b/Lib/test/mathdata/cmath_testcases.txt similarity index 99% rename from Lib/test/cmath_testcases.txt rename to Lib/test/mathdata/cmath_testcases.txt index dd7e458ddc..0165e17634 100644 --- a/Lib/test/cmath_testcases.txt +++ b/Lib/test/mathdata/cmath_testcases.txt @@ -1536,6 +1536,7 @@ sqrt0141 sqrt -1.797e+308 -9.9999999999999999e+306 -> 3.7284476432057307e+152 -1 sqrt0150 sqrt 1.7976931348623157e+308 0.0 -> 1.3407807929942596355e+154 0.0 sqrt0151 sqrt 2.2250738585072014e-308 0.0 -> 1.4916681462400413487e-154 0.0 sqrt0152 sqrt 5e-324 0.0 -> 2.2227587494850774834e-162 0.0 +sqrt0153 sqrt 5e-324 1.0 -> 0.7071067811865476 0.7071067811865476 -- special values sqrt1000 sqrt 0.0 0.0 -> 0.0 0.0 @@ -1744,6 +1745,7 @@ cosh0023 cosh 2.218885944363501 2.0015727395883687 -> -1.94294321081968 4.129026 -- large real part cosh0030 cosh 710.5 2.3519999999999999 -> -1.2967465239355998e+308 1.3076707908857333e+308 cosh0031 cosh -710.5 0.69999999999999996 -> 1.4085466381392499e+308 -1.1864024666450239e+308 +cosh0032 cosh 720.0 0.0 -> inf 0.0 overflow -- Additional real values (mpmath) cosh0050 cosh 1e-150 0.0 -> 1.0 0.0 @@ -1853,6 +1855,7 @@ sinh0023 sinh 0.043713693678420068 0.22512549887532657 -> 0.042624198673416713 0 -- large real part sinh0030 sinh 710.5 -2.3999999999999999 -> -1.3579970564885919e+308 -1.24394470907798e+308 sinh0031 sinh -710.5 0.80000000000000004 -> -1.2830671601735164e+308 1.3210954193997678e+308 +sinh0032 sinh 720.0 0.0 -> inf 0.0 overflow -- Additional real values (mpmath) sinh0050 sinh 1e-100 0.0 -> 1.00000000000000002e-100 0.0 diff --git a/Lib/test/mathdata/ieee754.txt b/Lib/test/mathdata/ieee754.txt new file mode 100644 index 0000000000..3e986cdb10 --- /dev/null +++ b/Lib/test/mathdata/ieee754.txt @@ -0,0 +1,183 @@ +====================================== +Python IEEE 754 floating point support +====================================== + +>>> from sys import float_info as FI +>>> from math import * +>>> PI = pi +>>> E = e + +You must never compare two floats with == because you are not going to get +what you expect. We treat two floats as equal if the difference between them +is small than epsilon. +>>> EPS = 1E-15 +>>> def equal(x, y): +... """Almost equal helper for floats""" +... return abs(x - y) < EPS + + +NaNs and INFs +============= + +In Python 2.6 and newer NaNs (not a number) and infinity can be constructed +from the strings 'inf' and 'nan'. + +>>> INF = float('inf') +>>> NINF = float('-inf') +>>> NAN = float('nan') + +>>> INF +inf +>>> NINF +-inf +>>> NAN +nan + +The math module's ``isnan`` and ``isinf`` functions can be used to detect INF +and NAN: +>>> isinf(INF), isinf(NINF), isnan(NAN) +(True, True, True) +>>> INF == -NINF +True + +Infinity +-------- + +Ambiguous operations like ``0 * inf`` or ``inf - inf`` result in NaN. +>>> INF * 0 +nan +>>> INF - INF +nan +>>> INF / INF +nan + +However unambiguous operations with inf return inf: +>>> INF * INF +inf +>>> 1.5 * INF +inf +>>> 0.5 * INF +inf +>>> INF / 1000 +inf + +Not a Number +------------ + +NaNs are never equal to another number, even itself +>>> NAN == NAN +False +>>> NAN < 0 +False +>>> NAN >= 0 +False + +All operations involving a NaN return a NaN except for nan**0 and 1**nan. +>>> 1 + NAN +nan +>>> 1 * NAN +nan +>>> 0 * NAN +nan +>>> 1 ** NAN +1.0 +>>> NAN ** 0 +1.0 +>>> 0 ** NAN +nan +>>> (1.0 + FI.epsilon) * NAN +nan + +Misc Functions +============== + +The power of 1 raised to x is always 1.0, even for special values like 0, +infinity and NaN. + +>>> pow(1, 0) +1.0 +>>> pow(1, INF) +1.0 +>>> pow(1, -INF) +1.0 +>>> pow(1, NAN) +1.0 + +The power of 0 raised to x is defined as 0, if x is positive. Negative +finite values are a domain error or zero division error and NaN result in a +silent NaN. + +>>> pow(0, 0) +1.0 +>>> pow(0, INF) +0.0 +>>> pow(0, -INF) +inf +>>> 0 ** -1 +Traceback (most recent call last): +... +ZeroDivisionError: 0.0 cannot be raised to a negative power +>>> pow(0, NAN) +nan + + +Trigonometric Functions +======================= + +>>> sin(INF) +Traceback (most recent call last): +... +ValueError: math domain error +>>> sin(NINF) +Traceback (most recent call last): +... +ValueError: math domain error +>>> sin(NAN) +nan +>>> cos(INF) +Traceback (most recent call last): +... +ValueError: math domain error +>>> cos(NINF) +Traceback (most recent call last): +... +ValueError: math domain error +>>> cos(NAN) +nan +>>> tan(INF) +Traceback (most recent call last): +... +ValueError: math domain error +>>> tan(NINF) +Traceback (most recent call last): +... +ValueError: math domain error +>>> tan(NAN) +nan + +Neither pi nor tan are exact, but you can assume that tan(pi/2) is a large value +and tan(pi) is a very small value: +>>> tan(PI/2) > 1E10 +True +>>> -tan(-PI/2) > 1E10 +True +>>> tan(PI) < 1E-15 +True + +>>> asin(NAN), acos(NAN), atan(NAN) +(nan, nan, nan) +>>> asin(INF), asin(NINF) +Traceback (most recent call last): +... +ValueError: math domain error +>>> acos(INF), acos(NINF) +Traceback (most recent call last): +... +ValueError: math domain error +>>> equal(atan(INF), PI/2), equal(atan(NINF), -PI/2) +(True, True) + + +Hyberbolic Functions +==================== + diff --git a/Lib/test/math_testcases.txt b/Lib/test/mathdata/math_testcases.txt similarity index 100% rename from Lib/test/math_testcases.txt rename to Lib/test/mathdata/math_testcases.txt diff --git a/Lib/test/string_tests.py b/Lib/test/string_tests.py index ea82b0166c..6f402513fd 100644 --- a/Lib/test/string_tests.py +++ b/Lib/test/string_tests.py @@ -1066,8 +1066,6 @@ def test_hash(self): hash(b) self.assertEqual(hash(a), hash(b)) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_capitalize_nonascii(self): # check that titlecased chars are lowered correctly # \u1ffc is the titlecased char diff --git a/Lib/test/support/__init__.py b/Lib/test/support/__init__.py index b49ffbd536..3768a979b2 100644 --- a/Lib/test/support/__init__.py +++ b/Lib/test/support/__init__.py @@ -74,13 +74,7 @@ # # The timeout should be long enough for connect(), recv() and send() methods # of socket.socket. -LOOPBACK_TIMEOUT = 5.0 -if sys.platform == 'win32' and ' 32 bit (ARM)' in sys.version: - # bpo-37553: test_socket.SendfileUsingSendTest is taking longer than 2 - # seconds on Windows ARM32 buildbot - LOOPBACK_TIMEOUT = 10 -elif sys.platform == 'vxworks': - LOOPBACK_TIMEOUT = 10 +LOOPBACK_TIMEOUT = 10.0 # Timeout in seconds for network requests going to the internet. The timeout is # short enough to prevent a test to wait for too long if the internet request @@ -113,7 +107,6 @@ STDLIB_DIR = os.path.dirname(TEST_HOME_DIR) REPO_ROOT = os.path.dirname(STDLIB_DIR) - class Error(Exception): """Base class for regression test exceptions.""" @@ -259,22 +252,16 @@ class USEROBJECTFLAGS(ctypes.Structure): # process not running under the same user id as the current console # user. To avoid that, raise an exception if the window manager # connection is not available. - from ctypes import cdll, c_int, pointer, Structure - from ctypes.util import find_library - - app_services = cdll.LoadLibrary(find_library("ApplicationServices")) - - if app_services.CGMainDisplayID() == 0: - reason = "gui tests cannot run without OS X window manager" + import subprocess + try: + rc = subprocess.run(["launchctl", "managername"], + capture_output=True, check=True) + managername = rc.stdout.decode("utf-8").strip() + except subprocess.CalledProcessError: + reason = "unable to detect macOS launchd job manager" else: - class ProcessSerialNumber(Structure): - _fields_ = [("highLongOfPSN", c_int), - ("lowLongOfPSN", c_int)] - psn = ProcessSerialNumber() - psn_p = pointer(psn) - if ( (app_services.GetCurrentProcess(psn_p) < 0) or - (app_services.SetFrontProcess(psn_p) < 0) ): - reason = "cannot run without OS X gui process" + if managername != "Aqua": + reason = f"{managername=} -- can only run in a macOS GUI session" # check on every platform whether tkinter can actually do anything if not reason: @@ -391,39 +378,45 @@ def wrapper(*args, **kw): def skip_if_buildbot(reason=None): """Decorator raising SkipTest if running on a buildbot.""" + import getpass if not reason: reason = 'not suitable for buildbots' try: isbuildbot = getpass.getuser().lower() == 'buildbot' - except (KeyError, EnvironmentError) as err: + except (KeyError, OSError) as err: warnings.warn(f'getpass.getuser() failed {err}.', RuntimeWarning) isbuildbot = False return unittest.skipIf(isbuildbot, reason) -def check_sanitizer(*, address=False, memory=False, ub=False): +def check_sanitizer(*, address=False, memory=False, ub=False, thread=False): """Returns True if Python is compiled with sanitizer support""" - if not (address or memory or ub): - raise ValueError('At least one of address, memory, or ub must be True') + if not (address or memory or ub or thread): + raise ValueError('At least one of address, memory, ub or thread must be True') - _cflags = sysconfig.get_config_var('CFLAGS') or '' - _config_args = sysconfig.get_config_var('CONFIG_ARGS') or '' + cflags = sysconfig.get_config_var('CFLAGS') or '' + config_args = sysconfig.get_config_var('CONFIG_ARGS') or '' memory_sanitizer = ( - '-fsanitize=memory' in _cflags or - '--with-memory-sanitizer' in _config_args + '-fsanitize=memory' in cflags or + '--with-memory-sanitizer' in config_args ) address_sanitizer = ( - '-fsanitize=address' in _cflags or - '--with-address-sanitizer' in _config_args + '-fsanitize=address' in cflags or + '--with-address-sanitizer' in config_args ) ub_sanitizer = ( - '-fsanitize=undefined' in _cflags or - '--with-undefined-behavior-sanitizer' in _config_args + '-fsanitize=undefined' in cflags or + '--with-undefined-behavior-sanitizer' in config_args + ) + thread_sanitizer = ( + '-fsanitize=thread' in cflags or + '--with-thread-sanitizer' in config_args ) return ( (memory and memory_sanitizer) or (address and address_sanitizer) or - (ub and ub_sanitizer) + (ub and ub_sanitizer) or + (thread and thread_sanitizer) ) @@ -431,9 +424,21 @@ def skip_if_sanitizer(reason=None, *, address=False, memory=False, ub=False, thr """Decorator raising SkipTest if running with a sanitizer active.""" if not reason: reason = 'not working with sanitizers active' - skip = check_sanitizer(address=address, memory=memory, ub=ub) + skip = check_sanitizer(address=address, memory=memory, ub=ub, thread=thread) return unittest.skipIf(skip, reason) +# gh-89363: True if fork() can hang if Python is built with Address Sanitizer +# (ASAN): libasan race condition, dead lock in pthread_create(). +HAVE_ASAN_FORK_BUG = check_sanitizer(address=True) + + +def set_sanitizer_env_var(env, option): + for name in ('ASAN_OPTIONS', 'MSAN_OPTIONS', 'UBSAN_OPTIONS', 'TSAN_OPTIONS'): + if name in env: + env[name] += f':{option}' + else: + env[name] = option + def system_must_validate_cert(f): """Skip the test on TLS certificate validation failures.""" @@ -493,6 +498,8 @@ def requires_lzma(reason='requires lzma'): import lzma except ImportError: lzma = None + # XXX: RUSTPYTHON; xz is not supported yet + lzma = None return unittest.skipUnless(lzma, reason) def has_no_debug_ranges(): @@ -506,21 +513,42 @@ def has_no_debug_ranges(): def requires_debug_ranges(reason='requires co_positions / debug_ranges'): return unittest.skipIf(has_no_debug_ranges(), reason) -def requires_legacy_unicode_capi(): +@contextlib.contextmanager +def suppress_immortalization(suppress=True): + """Suppress immortalization of deferred objects.""" try: - from _testcapi import unicode_legacy_string + import _testinternalcapi except ImportError: - unicode_legacy_string = None + yield + return - return unittest.skipUnless(unicode_legacy_string, - 'requires legacy Unicode C API') + if not suppress: + yield + return + + _testinternalcapi.suppress_immortalization(True) + try: + yield + finally: + _testinternalcapi.suppress_immortalization(False) + +def skip_if_suppress_immortalization(): + try: + import _testinternalcapi + except ImportError: + return + return unittest.skipUnless(_testinternalcapi.get_immortalize_deferred(), + "requires immortalization of deferred objects") + + +MS_WINDOWS = (sys.platform == 'win32') # Is not actually used in tests, but is kept for compatibility. is_jython = sys.platform.startswith('java') -is_android = hasattr(sys, 'getandroidapilevel') +is_android = sys.platform == "android" -if sys.platform not in ('win32', 'vxworks'): +if sys.platform not in {"win32", "vxworks", "ios", "tvos", "watchos"}: unix_shell = '/system/bin/sh' if is_android else '/bin/sh' else: unix_shell = None @@ -530,19 +558,44 @@ def requires_legacy_unicode_capi(): is_emscripten = sys.platform == "emscripten" is_wasi = sys.platform == "wasi" -has_fork_support = hasattr(os, "fork") and not is_emscripten and not is_wasi +is_apple_mobile = sys.platform in {"ios", "tvos", "watchos"} +is_apple = is_apple_mobile or sys.platform == "darwin" + +has_fork_support = hasattr(os, "fork") and not ( + # WASM and Apple mobile platforms do not support subprocesses. + is_emscripten + or is_wasi + or is_apple_mobile + + # Although Android supports fork, it's unsafe to call it from Python because + # all Android apps are multi-threaded. + or is_android +) def requires_fork(): return unittest.skipUnless(has_fork_support, "requires working os.fork()") -has_subprocess_support = not is_emscripten and not is_wasi +has_subprocess_support = not ( + # WASM and Apple mobile platforms do not support subprocesses. + is_emscripten + or is_wasi + or is_apple_mobile + + # Although Android supports subproceses, they're almost never useful in + # practice (see PEP 738). And most of the tests that use them are calling + # sys.executable, which won't work when Python is embedded in an Android app. + or is_android +) def requires_subprocess(): """Used for subprocess, os.spawn calls, fd inheritance""" return unittest.skipUnless(has_subprocess_support, "requires subprocess support") # Emscripten's socket emulation and WASI sockets have limitations. -has_socket_support = not is_emscripten and not is_wasi +has_socket_support = not ( + is_emscripten + or is_wasi +) def requires_working_socket(*, module=False): """Skip tests or modules that require working sockets @@ -2543,6 +2596,25 @@ def adjust_int_max_str_digits(max_digits): # The default C recursion limit (from Include/cpython/pystate.h). C_RECURSION_LIMIT = 1500 -#Windows doesn't have os.uname() but it doesn't support s390x. +# Windows doesn't have os.uname() but it doesn't support s390x. +is_s390x = hasattr(os, 'uname') and os.uname().machine == 's390x' skip_on_s390x = unittest.skipIf(hasattr(os, 'uname') and os.uname().machine == 's390x', 'skipped on s390x') +HAVE_ASAN_FORK_BUG = check_sanitizer(address=True) + +# From python 3.12.8 +class BrokenIter: + def __init__(self, init_raises=False, next_raises=False, iter_raises=False): + if init_raises: + 1/0 + self.next_raises = next_raises + self.iter_raises = iter_raises + + def __next__(self): + if self.next_raises: + 1/0 + + def __iter__(self): + if self.iter_raises: + 1/0 + return self diff --git a/Lib/test/support/i18n_helper.py b/Lib/test/support/i18n_helper.py new file mode 100644 index 0000000000..2e304f29e8 --- /dev/null +++ b/Lib/test/support/i18n_helper.py @@ -0,0 +1,63 @@ +import re +import subprocess +import sys +import unittest +from pathlib import Path +from test.support import REPO_ROOT, TEST_HOME_DIR, requires_subprocess +from test.test_tools import skip_if_missing + + +pygettext = Path(REPO_ROOT) / 'Tools' / 'i18n' / 'pygettext.py' + +msgid_pattern = re.compile(r'msgid(.*?)(?:msgid_plural|msgctxt|msgstr)', + re.DOTALL) +msgid_string_pattern = re.compile(r'"((?:\\"|[^"])*)"') + + +def _generate_po_file(path, *, stdout_only=True): + res = subprocess.run([sys.executable, pygettext, + '--no-location', '-o', '-', path], + stdout=subprocess.PIPE, stderr=subprocess.PIPE, + text=True) + if stdout_only: + return res.stdout + return res + + +def _extract_msgids(po): + msgids = [] + for msgid in msgid_pattern.findall(po): + msgid_string = ''.join(msgid_string_pattern.findall(msgid)) + msgid_string = msgid_string.replace(r'\"', '"') + if msgid_string: + msgids.append(msgid_string) + return sorted(msgids) + + +def _get_snapshot_path(module_name): + return Path(TEST_HOME_DIR) / 'translationdata' / module_name / 'msgids.txt' + + +@requires_subprocess() +class TestTranslationsBase(unittest.TestCase): + + def assertMsgidsEqual(self, module): + '''Assert that msgids extracted from a given module match a + snapshot. + + ''' + skip_if_missing('i18n') + res = _generate_po_file(module.__file__, stdout_only=False) + self.assertEqual(res.returncode, 0) + self.assertEqual(res.stderr, '') + msgids = _extract_msgids(res.stdout) + snapshot_path = _get_snapshot_path(module.__name__) + snapshot = snapshot_path.read_text().splitlines() + self.assertListEqual(msgids, snapshot) + + +def update_translation_snapshots(module): + contents = _generate_po_file(module.__file__) + msgids = _extract_msgids(contents) + snapshot_path = _get_snapshot_path(module.__name__) + snapshot_path.write_text('\n'.join(msgids)) diff --git a/Lib/smtpd.py b/Lib/test/support/smtpd.py old mode 100755 new mode 100644 similarity index 83% rename from Lib/smtpd.py rename to Lib/test/support/smtpd.py index 963e0a7689..ec4e7d2f4c --- a/Lib/smtpd.py +++ b/Lib/test/support/smtpd.py @@ -60,13 +60,6 @@ # SMTP errors from the backend server at all. This should be fixed # (contributions are welcome!). # -# MailmanProxy - An experimental hack to work with GNU Mailman -# . Using this server as your real incoming smtpd, your -# mailhost will automatically recognize and accept mail destined to Mailman -# lists when those lists are created. Every message not destined for a list -# gets forwarded to a real backend smtpd, as with PureProxy. Again, errors -# are not handled correctly yet. -# # # Author: Barry Warsaw # @@ -84,28 +77,14 @@ import time import socket import collections +from test.support import asyncore, asynchat from warnings import warn from email._header_value_parser import get_addr_spec, get_angle_addr __all__ = [ "SMTPChannel", "SMTPServer", "DebuggingServer", "PureProxy", - "MailmanProxy", ] -warn( - 'The smtpd module is deprecated and unmaintained and will be removed ' - 'in Python 3.12. Please see aiosmtpd ' - '(https://aiosmtpd.readthedocs.io/) for the recommended replacement.', - DeprecationWarning, - stacklevel=2) - - -# These are imported after the above warning so that users get the correct -# deprecation warning. -import asyncore -import asynchat - - program = sys.argv[0] __version__ = 'Python SMTP proxy version 0.3' @@ -201,122 +180,122 @@ def _set_rset_state(self): @property def __server(self): warn("Access to __server attribute on SMTPChannel is deprecated, " - "use 'smtp_server' instead", DeprecationWarning, 2) + "use 'smtp_server' instead", DeprecationWarning, 2) return self.smtp_server @__server.setter def __server(self, value): warn("Setting __server attribute on SMTPChannel is deprecated, " - "set 'smtp_server' instead", DeprecationWarning, 2) + "set 'smtp_server' instead", DeprecationWarning, 2) self.smtp_server = value @property def __line(self): warn("Access to __line attribute on SMTPChannel is deprecated, " - "use 'received_lines' instead", DeprecationWarning, 2) + "use 'received_lines' instead", DeprecationWarning, 2) return self.received_lines @__line.setter def __line(self, value): warn("Setting __line attribute on SMTPChannel is deprecated, " - "set 'received_lines' instead", DeprecationWarning, 2) + "set 'received_lines' instead", DeprecationWarning, 2) self.received_lines = value @property def __state(self): warn("Access to __state attribute on SMTPChannel is deprecated, " - "use 'smtp_state' instead", DeprecationWarning, 2) + "use 'smtp_state' instead", DeprecationWarning, 2) return self.smtp_state @__state.setter def __state(self, value): warn("Setting __state attribute on SMTPChannel is deprecated, " - "set 'smtp_state' instead", DeprecationWarning, 2) + "set 'smtp_state' instead", DeprecationWarning, 2) self.smtp_state = value @property def __greeting(self): warn("Access to __greeting attribute on SMTPChannel is deprecated, " - "use 'seen_greeting' instead", DeprecationWarning, 2) + "use 'seen_greeting' instead", DeprecationWarning, 2) return self.seen_greeting @__greeting.setter def __greeting(self, value): warn("Setting __greeting attribute on SMTPChannel is deprecated, " - "set 'seen_greeting' instead", DeprecationWarning, 2) + "set 'seen_greeting' instead", DeprecationWarning, 2) self.seen_greeting = value @property def __mailfrom(self): warn("Access to __mailfrom attribute on SMTPChannel is deprecated, " - "use 'mailfrom' instead", DeprecationWarning, 2) + "use 'mailfrom' instead", DeprecationWarning, 2) return self.mailfrom @__mailfrom.setter def __mailfrom(self, value): warn("Setting __mailfrom attribute on SMTPChannel is deprecated, " - "set 'mailfrom' instead", DeprecationWarning, 2) + "set 'mailfrom' instead", DeprecationWarning, 2) self.mailfrom = value @property def __rcpttos(self): warn("Access to __rcpttos attribute on SMTPChannel is deprecated, " - "use 'rcpttos' instead", DeprecationWarning, 2) + "use 'rcpttos' instead", DeprecationWarning, 2) return self.rcpttos @__rcpttos.setter def __rcpttos(self, value): warn("Setting __rcpttos attribute on SMTPChannel is deprecated, " - "set 'rcpttos' instead", DeprecationWarning, 2) + "set 'rcpttos' instead", DeprecationWarning, 2) self.rcpttos = value @property def __data(self): warn("Access to __data attribute on SMTPChannel is deprecated, " - "use 'received_data' instead", DeprecationWarning, 2) + "use 'received_data' instead", DeprecationWarning, 2) return self.received_data @__data.setter def __data(self, value): warn("Setting __data attribute on SMTPChannel is deprecated, " - "set 'received_data' instead", DeprecationWarning, 2) + "set 'received_data' instead", DeprecationWarning, 2) self.received_data = value @property def __fqdn(self): warn("Access to __fqdn attribute on SMTPChannel is deprecated, " - "use 'fqdn' instead", DeprecationWarning, 2) + "use 'fqdn' instead", DeprecationWarning, 2) return self.fqdn @__fqdn.setter def __fqdn(self, value): warn("Setting __fqdn attribute on SMTPChannel is deprecated, " - "set 'fqdn' instead", DeprecationWarning, 2) + "set 'fqdn' instead", DeprecationWarning, 2) self.fqdn = value @property def __peer(self): warn("Access to __peer attribute on SMTPChannel is deprecated, " - "use 'peer' instead", DeprecationWarning, 2) + "use 'peer' instead", DeprecationWarning, 2) return self.peer @__peer.setter def __peer(self, value): warn("Setting __peer attribute on SMTPChannel is deprecated, " - "set 'peer' instead", DeprecationWarning, 2) + "set 'peer' instead", DeprecationWarning, 2) self.peer = value @property def __conn(self): warn("Access to __conn attribute on SMTPChannel is deprecated, " - "use 'conn' instead", DeprecationWarning, 2) + "use 'conn' instead", DeprecationWarning, 2) return self.conn @__conn.setter def __conn(self, value): warn("Setting __conn attribute on SMTPChannel is deprecated, " - "set 'conn' instead", DeprecationWarning, 2) + "set 'conn' instead", DeprecationWarning, 2) self.conn = value @property def __addr(self): warn("Access to __addr attribute on SMTPChannel is deprecated, " - "use 'addr' instead", DeprecationWarning, 2) + "use 'addr' instead", DeprecationWarning, 2) return self.addr @__addr.setter def __addr(self, value): warn("Setting __addr attribute on SMTPChannel is deprecated, " - "set 'addr' instead", DeprecationWarning, 2) + "set 'addr' instead", DeprecationWarning, 2) self.addr = value # Overrides base class for convenience. @@ -360,7 +339,7 @@ def found_terminator(self): command = line[:i].upper() arg = line[i+1:].strip() max_sz = (self.command_size_limits[command] - if self.extended_smtp else self.command_size_limit) + if self.extended_smtp else self.command_size_limit) if sz > max_sz: self.push('500 Error: line too long') return @@ -789,91 +768,6 @@ def _deliver(self, mailfrom, rcpttos, data): return refused -class MailmanProxy(PureProxy): - def __init__(self, *args, **kwargs): - warn('MailmanProxy is deprecated and will be removed ' - 'in future', DeprecationWarning, 2) - if 'enable_SMTPUTF8' in kwargs and kwargs['enable_SMTPUTF8']: - raise ValueError("MailmanProxy does not support SMTPUTF8.") - super(PureProxy, self).__init__(*args, **kwargs) - - def process_message(self, peer, mailfrom, rcpttos, data): - from io import StringIO - from Mailman import Utils - from Mailman import Message - from Mailman import MailList - # If the message is to a Mailman mailing list, then we'll invoke the - # Mailman script directly, without going through the real smtpd. - # Otherwise we'll forward it to the local proxy for disposition. - listnames = [] - for rcpt in rcpttos: - local = rcpt.lower().split('@')[0] - # We allow the following variations on the theme - # listname - # listname-admin - # listname-owner - # listname-request - # listname-join - # listname-leave - parts = local.split('-') - if len(parts) > 2: - continue - listname = parts[0] - if len(parts) == 2: - command = parts[1] - else: - command = '' - if not Utils.list_exists(listname) or command not in ( - '', 'admin', 'owner', 'request', 'join', 'leave'): - continue - listnames.append((rcpt, listname, command)) - # Remove all list recipients from rcpttos and forward what we're not - # going to take care of ourselves. Linear removal should be fine - # since we don't expect a large number of recipients. - for rcpt, listname, command in listnames: - rcpttos.remove(rcpt) - # If there's any non-list destined recipients left, - print('forwarding recips:', ' '.join(rcpttos), file=DEBUGSTREAM) - if rcpttos: - refused = self._deliver(mailfrom, rcpttos, data) - # TBD: what to do with refused addresses? - print('we got refusals:', refused, file=DEBUGSTREAM) - # Now deliver directly to the list commands - mlists = {} - s = StringIO(data) - msg = Message.Message(s) - # These headers are required for the proper execution of Mailman. All - # MTAs in existence seem to add these if the original message doesn't - # have them. - if not msg.get('from'): - msg['From'] = mailfrom - if not msg.get('date'): - msg['Date'] = time.ctime(time.time()) - for rcpt, listname, command in listnames: - print('sending message to', rcpt, file=DEBUGSTREAM) - mlist = mlists.get(listname) - if not mlist: - mlist = MailList.MailList(listname, lock=0) - mlists[listname] = mlist - # dispatch on the type of command - if command == '': - # post - msg.Enqueue(mlist, tolist=1) - elif command == 'admin': - msg.Enqueue(mlist, toadmin=1) - elif command == 'owner': - msg.Enqueue(mlist, toowner=1) - elif command == 'request': - msg.Enqueue(mlist, torequest=1) - elif command in ('join', 'leave'): - # TBD: this is a hack! - if command == 'join': - msg['Subject'] = 'subscribe' - else: - msg['Subject'] = 'unsubscribe' - msg.Enqueue(mlist, torequest=1) - - class Options: setuid = True classname = 'PureProxy' diff --git a/Lib/test/support/socket_helper.py b/Lib/test/support/socket_helper.py index d9c087c251..87941ee179 100644 --- a/Lib/test/support/socket_helper.py +++ b/Lib/test/support/socket_helper.py @@ -8,7 +8,6 @@ import unittest from .. import support -from . import warnings_helper HOST = "localhost" HOSTv4 = "127.0.0.1" @@ -196,7 +195,6 @@ def get_socket_conn_refused_errs(): def transient_internet(resource_name, *, timeout=_NOT_SET, errnos=()): """Return a context manager that raises ResourceDenied when various issues with the internet connection manifest themselves as exceptions.""" - nntplib = warnings_helper.import_deprecated("nntplib") import urllib.error if timeout is _NOT_SET: timeout = support.INTERNET_TIMEOUT @@ -249,10 +247,6 @@ def filter_error(err): if timeout is not None: socket.setdefaulttimeout(timeout) yield - except nntplib.NNTPTemporaryError as err: - if support.verbose: - sys.stderr.write(denied.args[0] + "\n") - raise denied from err except OSError as err: # urllib can wrap original socket errors multiple times (!), we must # unwrap to get at the original error. @@ -303,7 +297,7 @@ def _get_sysctl(name): stderr=subprocess.STDOUT, text=True) if proc.returncode: - support.print_warning(f'{" ".join(cmd)!r} command failed with ' + support.print_warning(f'{' '.join(cmd)!r} command failed with ' f'exit code {proc.returncode}') # cache the error to only log the warning once _sysctl_cache[name] = None @@ -314,7 +308,7 @@ def _get_sysctl(name): try: value = int(output.strip()) except Exception as exc: - support.print_warning(f'Failed to parse {" ".join(cmd)!r} ' + support.print_warning(f'Failed to parse {' '.join(cmd)!r} ' f'command output {output!r}: {exc!r}') # cache the error to only log the warning once _sysctl_cache[name] = None diff --git a/Lib/test/support/testcase.py b/Lib/test/support/testcase.py new file mode 100644 index 0000000000..fd32457d14 --- /dev/null +++ b/Lib/test/support/testcase.py @@ -0,0 +1,122 @@ +from math import copysign, isnan + + +class ExtraAssertions: + + def assertIsSubclass(self, cls, superclass, msg=None): + if issubclass(cls, superclass): + return + standardMsg = f'{cls!r} is not a subclass of {superclass!r}' + self.fail(self._formatMessage(msg, standardMsg)) + + def assertNotIsSubclass(self, cls, superclass, msg=None): + if not issubclass(cls, superclass): + return + standardMsg = f'{cls!r} is a subclass of {superclass!r}' + self.fail(self._formatMessage(msg, standardMsg)) + + def assertHasAttr(self, obj, name, msg=None): + if not hasattr(obj, name): + if isinstance(obj, types.ModuleType): + standardMsg = f'module {obj.__name__!r} has no attribute {name!r}' + elif isinstance(obj, type): + standardMsg = f'type object {obj.__name__!r} has no attribute {name!r}' + else: + standardMsg = f'{type(obj).__name__!r} object has no attribute {name!r}' + self.fail(self._formatMessage(msg, standardMsg)) + + def assertNotHasAttr(self, obj, name, msg=None): + if hasattr(obj, name): + if isinstance(obj, types.ModuleType): + standardMsg = f'module {obj.__name__!r} has unexpected attribute {name!r}' + elif isinstance(obj, type): + standardMsg = f'type object {obj.__name__!r} has unexpected attribute {name!r}' + else: + standardMsg = f'{type(obj).__name__!r} object has unexpected attribute {name!r}' + self.fail(self._formatMessage(msg, standardMsg)) + + def assertStartsWith(self, s, prefix, msg=None): + if s.startswith(prefix): + return + standardMsg = f"{s!r} doesn't start with {prefix!r}" + self.fail(self._formatMessage(msg, standardMsg)) + + def assertNotStartsWith(self, s, prefix, msg=None): + if not s.startswith(prefix): + return + self.fail(self._formatMessage(msg, f"{s!r} starts with {prefix!r}")) + + def assertEndsWith(self, s, suffix, msg=None): + if s.endswith(suffix): + return + standardMsg = f"{s!r} doesn't end with {suffix!r}" + self.fail(self._formatMessage(msg, standardMsg)) + + def assertNotEndsWith(self, s, suffix, msg=None): + if not s.endswith(suffix): + return + self.fail(self._formatMessage(msg, f"{s!r} ends with {suffix!r}")) + + +class ExceptionIsLikeMixin: + def assertExceptionIsLike(self, exc, template): + """ + Passes when the provided `exc` matches the structure of `template`. + Individual exceptions don't have to be the same objects or even pass + an equality test: they only need to be the same type and contain equal + `exc_obj.args`. + """ + if exc is None and template is None: + return + + if template is None: + self.fail(f"unexpected exception: {exc}") + + if exc is None: + self.fail(f"expected an exception like {template!r}, got None") + + if not isinstance(exc, ExceptionGroup): + self.assertEqual(exc.__class__, template.__class__) + self.assertEqual(exc.args[0], template.args[0]) + else: + self.assertEqual(exc.message, template.message) + self.assertEqual(len(exc.exceptions), len(template.exceptions)) + for e, t in zip(exc.exceptions, template.exceptions): + self.assertExceptionIsLike(e, t) + + +class FloatsAreIdenticalMixin: + def assertFloatsAreIdentical(self, x, y): + """Fail unless floats x and y are identical, in the sense that: + (1) both x and y are nans, or + (2) both x and y are infinities, with the same sign, or + (3) both x and y are zeros, with the same sign, or + (4) x and y are both finite and nonzero, and x == y + + """ + msg = 'floats {!r} and {!r} are not identical' + + if isnan(x) or isnan(y): + if isnan(x) and isnan(y): + return + elif x == y: + if x != 0.0: + return + # both zero; check that signs match + elif copysign(1.0, x) == copysign(1.0, y): + return + else: + msg += ': zeros have different signs' + self.fail(msg.format(x, y)) + + +class ComplexesAreIdenticalMixin(FloatsAreIdenticalMixin): + def assertComplexesAreIdentical(self, x, y): + """Fail unless complex numbers x and y have equal values and signs. + + In particular, if x and y both have real (or imaginary) part + zero, but the zeros have different signs, this test will fail. + + """ + self.assertFloatsAreIdentical(x.real, y.real) + self.assertFloatsAreIdentical(x.imag, y.imag) diff --git a/Lib/test/test___all__.py b/Lib/test/test___all__.py index a620dd5b4c..7b5356ea02 100644 --- a/Lib/test/test___all__.py +++ b/Lib/test/test___all__.py @@ -5,17 +5,21 @@ import sys import types -try: - import _multiprocessing -except ModuleNotFoundError: - _multiprocessing = None - if support.check_sanitizer(address=True, memory=True): - # bpo-46633: test___all__ is skipped because importing some modules - # directly can trigger known problems with ASAN (like tk or crypt). - raise unittest.SkipTest("workaround ASAN build issues on loading tests " - "like tk or crypt") + SKIP_MODULES = frozenset(( + # gh-90791: Tests involving libX11 can SEGFAULT on ASAN/MSAN builds. + # Skip modules, packages and tests using '_tkinter'. + '_tkinter', + 'tkinter', + 'test_tkinter', + 'test_ttk', + 'test_ttk_textonly', + 'idlelib', + 'test_idle', + )) +else: + SKIP_MODULES = () class NoAll(RuntimeError): @@ -27,17 +31,6 @@ class FailedImport(RuntimeError): class AllTest(unittest.TestCase): - def setUp(self): - # concurrent.futures uses a __getattr__ hook. Its __all__ triggers - # import of a submodule, which fails when _multiprocessing is not - # available. - if _multiprocessing is None: - sys.modules["_multiprocessing"] = types.ModuleType("_multiprocessing") - - def tearDown(self): - if _multiprocessing is None: - sys.modules.pop("_multiprocessing") - def check_all(self, modname): names = {} with warnings_helper.check_warnings( @@ -83,16 +76,24 @@ def walk_modules(self, basedir, modpath): for fn in sorted(os.listdir(basedir)): path = os.path.join(basedir, fn) if os.path.isdir(path): + if fn in SKIP_MODULES: + continue pkg_init = os.path.join(path, '__init__.py') if os.path.exists(pkg_init): yield pkg_init, modpath + fn for p, m in self.walk_modules(path, modpath + fn + "."): yield p, m continue - if not fn.endswith('.py') or fn == '__init__.py': + + if fn == '__init__.py': continue - yield path, modpath + fn[:-3] - + if not fn.endswith('.py'): + continue + modname = fn.removesuffix('.py') + if modname in SKIP_MODULES: + continue + yield path, modpath + modname + # TODO: RUSTPYTHON @unittest.expectedFailure def test_all(self): @@ -103,7 +104,8 @@ def test_all(self): ]) # In case _socket fails to build, make this test fail more gracefully - # than an AttributeError somewhere deep in CGIHTTPServer. + # than an AttributeError somewhere deep in concurrent.futures, email + # or unittest. import _socket ignored = [] @@ -120,14 +122,14 @@ def test_all(self): if denied: continue if support.verbose: - print(modname) + print(f"Check {modname}", flush=True) try: # This heuristic speeds up the process by removing, de facto, # most test modules (and avoiding the auto-executing ones). with open(path, "rb") as f: if b"__all__" not in f.read(): raise NoAll(modname) - self.check_all(modname) + self.check_all(modname) except NoAll: ignored.append(modname) except FailedImport: diff --git a/Lib/test/test__colorize.py b/Lib/test/test__colorize.py new file mode 100644 index 0000000000..056a5306ce --- /dev/null +++ b/Lib/test/test__colorize.py @@ -0,0 +1,135 @@ +import contextlib +import io +import sys +import unittest +import unittest.mock +import _colorize +from test.support.os_helper import EnvironmentVarGuard + + +@contextlib.contextmanager +def clear_env(): + with EnvironmentVarGuard() as mock_env: + for var in "FORCE_COLOR", "NO_COLOR", "PYTHON_COLORS": + mock_env.unset(var) + yield mock_env + + +def supports_virtual_terminal(): + if sys.platform == "win32": + return unittest.mock.patch("nt._supports_virtual_terminal", return_value=True) + else: + return contextlib.nullcontext() + + +class TestColorizeFunction(unittest.TestCase): + def test_colorized_detection_checks_for_environment_variables(self): + def check(env, fallback, expected): + with (self.subTest(env=env, fallback=fallback), + clear_env() as mock_env): + mock_env.update(env) + isatty_mock.return_value = fallback + stdout_mock.isatty.return_value = fallback + self.assertEqual(_colorize.can_colorize(), expected) + + with (unittest.mock.patch("os.isatty") as isatty_mock, + unittest.mock.patch("sys.stdout") as stdout_mock, + supports_virtual_terminal()): + stdout_mock.fileno.return_value = 1 + + for fallback in False, True: + check({}, fallback, fallback) + check({'TERM': 'dumb'}, fallback, False) + check({'TERM': 'xterm'}, fallback, fallback) + check({'TERM': ''}, fallback, fallback) + check({'FORCE_COLOR': '1'}, fallback, True) + check({'FORCE_COLOR': '0'}, fallback, True) + check({'FORCE_COLOR': ''}, fallback, fallback) + check({'NO_COLOR': '1'}, fallback, False) + check({'NO_COLOR': '0'}, fallback, False) + check({'NO_COLOR': ''}, fallback, fallback) + + check({'TERM': 'dumb', 'FORCE_COLOR': '1'}, False, True) + check({'FORCE_COLOR': '1', 'NO_COLOR': '1'}, True, False) + + for ignore_environment in False, True: + # Simulate running with or without `-E`. + flags = unittest.mock.MagicMock(ignore_environment=ignore_environment) + with unittest.mock.patch("sys.flags", flags): + check({'PYTHON_COLORS': '1'}, True, True) + check({'PYTHON_COLORS': '1'}, False, not ignore_environment) + check({'PYTHON_COLORS': '0'}, True, ignore_environment) + check({'PYTHON_COLORS': '0'}, False, False) + for fallback in False, True: + check({'PYTHON_COLORS': 'x'}, fallback, fallback) + check({'PYTHON_COLORS': ''}, fallback, fallback) + + check({'TERM': 'dumb', 'PYTHON_COLORS': '1'}, False, not ignore_environment) + check({'NO_COLOR': '1', 'PYTHON_COLORS': '1'}, False, not ignore_environment) + check({'FORCE_COLOR': '1', 'PYTHON_COLORS': '0'}, True, ignore_environment) + + @unittest.skipUnless(sys.platform == "win32", "requires Windows") + def test_colorized_detection_checks_on_windows(self): + with (clear_env(), + unittest.mock.patch("os.isatty") as isatty_mock, + unittest.mock.patch("sys.stdout") as stdout_mock, + supports_virtual_terminal() as vt_mock): + stdout_mock.fileno.return_value = 1 + isatty_mock.return_value = True + stdout_mock.isatty.return_value = True + + vt_mock.return_value = True + self.assertEqual(_colorize.can_colorize(), True) + vt_mock.return_value = False + self.assertEqual(_colorize.can_colorize(), False) + import nt + del nt._supports_virtual_terminal + self.assertEqual(_colorize.can_colorize(), False) + + def test_colorized_detection_checks_for_std_streams(self): + with (clear_env(), + unittest.mock.patch("os.isatty") as isatty_mock, + unittest.mock.patch("sys.stdout") as stdout_mock, + unittest.mock.patch("sys.stderr") as stderr_mock, + supports_virtual_terminal()): + stdout_mock.fileno.return_value = 1 + stderr_mock.fileno.side_effect = ZeroDivisionError + stderr_mock.isatty.side_effect = ZeroDivisionError + + isatty_mock.return_value = True + stdout_mock.isatty.return_value = True + self.assertEqual(_colorize.can_colorize(), True) + + isatty_mock.return_value = False + stdout_mock.isatty.return_value = False + self.assertEqual(_colorize.can_colorize(), False) + + def test_colorized_detection_checks_for_file(self): + with clear_env(), supports_virtual_terminal(): + + with unittest.mock.patch("os.isatty") as isatty_mock: + file = unittest.mock.MagicMock() + file.fileno.return_value = 1 + isatty_mock.return_value = True + self.assertEqual(_colorize.can_colorize(file=file), True) + isatty_mock.return_value = False + self.assertEqual(_colorize.can_colorize(file=file), False) + + # No file.fileno. + with unittest.mock.patch("os.isatty", side_effect=ZeroDivisionError): + file = unittest.mock.MagicMock(spec=['isatty']) + file.isatty.return_value = True + self.assertEqual(_colorize.can_colorize(file=file), False) + + # file.fileno() raises io.UnsupportedOperation. + with unittest.mock.patch("os.isatty", side_effect=ZeroDivisionError): + file = unittest.mock.MagicMock() + file.fileno.side_effect = io.UnsupportedOperation + file.isatty.return_value = True + self.assertEqual(_colorize.can_colorize(file=file), True) + file.isatty.return_value = False + self.assertEqual(_colorize.can_colorize(file=file), False) + + +if __name__ == "__main__": + unittest.main() diff --git a/Lib/test/test_abstract_numbers.py b/Lib/test/test_abstract_numbers.py index 2e06f0d16f..72232b670c 100644 --- a/Lib/test/test_abstract_numbers.py +++ b/Lib/test/test_abstract_numbers.py @@ -1,14 +1,34 @@ """Unit tests for numbers.py.""" +import abc import math import operator import unittest -from numbers import Complex, Real, Rational, Integral +from numbers import Complex, Real, Rational, Integral, Number + + +def concretize(cls): + def not_implemented(*args, **kwargs): + raise NotImplementedError() + + for name in dir(cls): + try: + value = getattr(cls, name) + if value.__isabstractmethod__: + setattr(cls, name, not_implemented) + except AttributeError: + pass + abc.update_abstractmethods(cls) + return cls + class TestNumbers(unittest.TestCase): def test_int(self): self.assertTrue(issubclass(int, Integral)) + self.assertTrue(issubclass(int, Rational)) + self.assertTrue(issubclass(int, Real)) self.assertTrue(issubclass(int, Complex)) + self.assertTrue(issubclass(int, Number)) self.assertEqual(7, int(7).real) self.assertEqual(0, int(7).imag) @@ -18,8 +38,11 @@ def test_int(self): self.assertEqual(1, int(7).denominator) def test_float(self): + self.assertFalse(issubclass(float, Integral)) self.assertFalse(issubclass(float, Rational)) self.assertTrue(issubclass(float, Real)) + self.assertTrue(issubclass(float, Complex)) + self.assertTrue(issubclass(float, Number)) self.assertEqual(7.3, float(7.3).real) self.assertEqual(0, float(7.3).imag) @@ -27,8 +50,11 @@ def test_float(self): self.assertEqual(-7.3, float(-7.3).conjugate()) def test_complex(self): + self.assertFalse(issubclass(complex, Integral)) + self.assertFalse(issubclass(complex, Rational)) self.assertFalse(issubclass(complex, Real)) self.assertTrue(issubclass(complex, Complex)) + self.assertTrue(issubclass(complex, Number)) c1, c2 = complex(3, 2), complex(4,1) # XXX: This is not ideal, but see the comment in math_trunc(). @@ -40,5 +66,135 @@ def test_complex(self): self.assertRaises(TypeError, int, c1) +class TestNumbersDefaultMethods(unittest.TestCase): + def test_complex(self): + @concretize + class MyComplex(Complex): + def __init__(self, real, imag): + self.r = real + self.i = imag + + @property + def real(self): + return self.r + + @property + def imag(self): + return self.i + + def __add__(self, other): + if isinstance(other, Complex): + return MyComplex(self.imag + other.imag, + self.real + other.real) + raise NotImplementedError + + def __neg__(self): + return MyComplex(-self.real, -self.imag) + + def __eq__(self, other): + if isinstance(other, Complex): + return self.imag == other.imag and self.real == other.real + if isinstance(other, Number): + return self.imag == 0 and self.real == other.real + + # test __bool__ + self.assertTrue(bool(MyComplex(1, 1))) + self.assertTrue(bool(MyComplex(0, 1))) + self.assertTrue(bool(MyComplex(1, 0))) + self.assertFalse(bool(MyComplex(0, 0))) + + # test __sub__ + self.assertEqual(MyComplex(2, 3) - complex(1, 2), MyComplex(1, 1)) + + # test __rsub__ + self.assertEqual(complex(2, 3) - MyComplex(1, 2), MyComplex(1, 1)) + + def test_real(self): + @concretize + class MyReal(Real): + def __init__(self, n): + self.n = n + + def __pos__(self): + return self.n + + def __float__(self): + return float(self.n) + + def __floordiv__(self, other): + return self.n // other + + def __rfloordiv__(self, other): + return other // self.n + + def __mod__(self, other): + return self.n % other + + def __rmod__(self, other): + return other % self.n + + # test __divmod__ + self.assertEqual(divmod(MyReal(3), 2), (1, 1)) + + # test __rdivmod__ + self.assertEqual(divmod(3, MyReal(2)), (1, 1)) + + # test __complex__ + self.assertEqual(complex(MyReal(1)), 1+0j) + + # test real + self.assertEqual(MyReal(3).real, 3) + + # test imag + self.assertEqual(MyReal(3).imag, 0) + + # test conjugate + self.assertEqual(MyReal(123).conjugate(), 123) + + + def test_rational(self): + @concretize + class MyRational(Rational): + def __init__(self, numerator, denominator): + self.n = numerator + self.d = denominator + + @property + def numerator(self): + return self.n + + @property + def denominator(self): + return self.d + + # test__float__ + self.assertEqual(float(MyRational(5, 2)), 2.5) + + + def test_integral(self): + @concretize + class MyIntegral(Integral): + def __init__(self, n): + self.n = n + + def __pos__(self): + return self.n + + def __int__(self): + return self.n + + # test __index__ + self.assertEqual(operator.index(MyIntegral(123)), 123) + + # test __float__ + self.assertEqual(float(MyIntegral(123)), 123.0) + + # test numerator + self.assertEqual(MyIntegral(123).numerator, 123) + + # test denominator + self.assertEqual(MyIntegral(123).denominator, 1) + + if __name__ == "__main__": unittest.main() diff --git a/Lib/test/test_android.py b/Lib/test/test_android.py new file mode 100644 index 0000000000..076190f757 --- /dev/null +++ b/Lib/test/test_android.py @@ -0,0 +1,448 @@ +import io +import platform +import queue +import re +import subprocess +import sys +import unittest +from _android_support import TextLogStream +from array import array +from contextlib import ExitStack, contextmanager +from threading import Thread +from test.support import LOOPBACK_TIMEOUT +from time import time +from unittest.mock import patch + + +if sys.platform != "android": + raise unittest.SkipTest("Android-specific") + +api_level = platform.android_ver().api_level + +# (name, level, fileno) +STREAM_INFO = [("stdout", "I", 1), ("stderr", "W", 2)] + + +# Test redirection of stdout and stderr to the Android log. +@unittest.skipIf( + api_level < 23 and platform.machine() == "aarch64", + "SELinux blocks reading logs on older ARM64 emulators" +) +class TestAndroidOutput(unittest.TestCase): + maxDiff = None + + def setUp(self): + self.logcat_process = subprocess.Popen( + ["logcat", "-v", "tag"], stdout=subprocess.PIPE, + errors="backslashreplace" + ) + self.logcat_queue = queue.Queue() + + def logcat_thread(): + for line in self.logcat_process.stdout: + self.logcat_queue.put(line.rstrip("\n")) + self.logcat_process.stdout.close() + self.logcat_thread = Thread(target=logcat_thread) + self.logcat_thread.start() + + from ctypes import CDLL, c_char_p, c_int + android_log_write = getattr(CDLL("liblog.so"), "__android_log_write") + android_log_write.argtypes = (c_int, c_char_p, c_char_p) + ANDROID_LOG_INFO = 4 + + # Separate tests using a marker line with a different tag. + tag, message = "python.test", f"{self.id()} {time()}" + android_log_write( + ANDROID_LOG_INFO, tag.encode("UTF-8"), message.encode("UTF-8")) + self.assert_log("I", tag, message, skip=True, timeout=5) + + def assert_logs(self, level, tag, expected, **kwargs): + for line in expected: + self.assert_log(level, tag, line, **kwargs) + + def assert_log(self, level, tag, expected, *, skip=False, timeout=0.5): + deadline = time() + timeout + while True: + try: + line = self.logcat_queue.get(timeout=(deadline - time())) + except queue.Empty: + self.fail(f"line not found: {expected!r}") + if match := re.fullmatch(fr"(.)/{tag}: (.*)", line): + try: + self.assertEqual(level, match[1]) + self.assertEqual(expected, match[2]) + break + except AssertionError: + if not skip: + raise + + def tearDown(self): + self.logcat_process.terminate() + self.logcat_process.wait(LOOPBACK_TIMEOUT) + self.logcat_thread.join(LOOPBACK_TIMEOUT) + + @contextmanager + def unbuffered(self, stream): + stream.reconfigure(write_through=True) + try: + yield + finally: + stream.reconfigure(write_through=False) + + # In --verbose3 mode, sys.stdout and sys.stderr are captured, so we can't + # test them directly. Detect this mode and use some temporary streams with + # the same properties. + def stream_context(self, stream_name, level): + # https://developer.android.com/ndk/reference/group/logging + prio = {"I": 4, "W": 5}[level] + + stack = ExitStack() + stack.enter_context(self.subTest(stream_name)) + stream = getattr(sys, stream_name) + native_stream = getattr(sys, f"__{stream_name}__") + if isinstance(stream, io.StringIO): + stack.enter_context( + patch( + f"sys.{stream_name}", + TextLogStream( + prio, f"python.{stream_name}", native_stream.fileno(), + errors="backslashreplace" + ), + ) + ) + return stack + + def test_str(self): + for stream_name, level, fileno in STREAM_INFO: + with self.stream_context(stream_name, level): + stream = getattr(sys, stream_name) + tag = f"python.{stream_name}" + self.assertEqual(f"", repr(stream)) + + self.assertIs(stream.writable(), True) + self.assertIs(stream.readable(), False) + self.assertEqual(stream.fileno(), fileno) + self.assertEqual("UTF-8", stream.encoding) + self.assertEqual("backslashreplace", stream.errors) + self.assertIs(stream.line_buffering, True) + self.assertIs(stream.write_through, False) + + def write(s, lines=None, *, write_len=None): + if write_len is None: + write_len = len(s) + self.assertEqual(write_len, stream.write(s)) + if lines is None: + lines = [s] + self.assert_logs(level, tag, lines) + + # Single-line messages, + with self.unbuffered(stream): + write("", []) + + write("a") + write("Hello") + write("Hello world") + write(" ") + write(" ") + + # Non-ASCII text + write("ol\u00e9") # Spanish + write("\u4e2d\u6587") # Chinese + + # Non-BMP emoji + write("\U0001f600") + + # Non-encodable surrogates + write("\ud800\udc00", [r"\ud800\udc00"]) + + # Code used by surrogateescape (which isn't enabled here) + write("\udc80", [r"\udc80"]) + + # Null characters are logged using "modified UTF-8". + write("\u0000", [r"\xc0\x80"]) + write("a\u0000", [r"a\xc0\x80"]) + write("\u0000b", [r"\xc0\x80b"]) + write("a\u0000b", [r"a\xc0\x80b"]) + + # Multi-line messages. Avoid identical consecutive lines, as + # they may activate "chatty" filtering and break the tests. + write("\nx", [""]) + write("\na\n", ["x", "a"]) + write("\n", [""]) + write("b\n", ["b"]) + write("c\n\n", ["c", ""]) + write("d\ne", ["d"]) + write("xx", []) + write("f\n\ng", ["exxf", ""]) + write("\n", ["g"]) + + # Since this is a line-based logging system, line buffering + # cannot be turned off, i.e. a newline always causes a flush. + stream.reconfigure(line_buffering=False) + self.assertIs(stream.line_buffering, True) + + # However, buffering can be turned off completely if you want a + # flush after every write. + with self.unbuffered(stream): + write("\nx", ["", "x"]) + write("\na\n", ["", "a"]) + write("\n", [""]) + write("b\n", ["b"]) + write("c\n\n", ["c", ""]) + write("d\ne", ["d", "e"]) + write("xx", ["xx"]) + write("f\n\ng", ["f", "", "g"]) + write("\n", [""]) + + # "\r\n" should be translated into "\n". + write("hello\r\n", ["hello"]) + write("hello\r\nworld\r\n", ["hello", "world"]) + write("\r\n", [""]) + + # Non-standard line separators should be preserved. + write("before form feed\x0cafter form feed\n", + ["before form feed\x0cafter form feed"]) + write("before line separator\u2028after line separator\n", + ["before line separator\u2028after line separator"]) + + # String subclasses are accepted, but they should be converted + # to a standard str without calling any of their methods. + class CustomStr(str): + def splitlines(self, *args, **kwargs): + raise AssertionError() + + def __len__(self): + raise AssertionError() + + def __str__(self): + raise AssertionError() + + write(CustomStr("custom\n"), ["custom"], write_len=7) + + # Non-string classes are not accepted. + for obj in [b"", b"hello", None, 42]: + with self.subTest(obj=obj): + with self.assertRaisesRegex( + TypeError, + fr"write\(\) argument must be str, not " + fr"{type(obj).__name__}" + ): + stream.write(obj) + + # Manual flushing is supported. + write("hello", []) + stream.flush() + self.assert_log(level, tag, "hello") + write("hello", []) + write("world", []) + stream.flush() + self.assert_log(level, tag, "helloworld") + + # Long lines are split into blocks of 1000 characters + # (MAX_CHARS_PER_WRITE in _android_support.py), but + # TextIOWrapper should then join them back together as much as + # possible without exceeding 4000 UTF-8 bytes + # (MAX_BYTES_PER_WRITE). + # + # ASCII (1 byte per character) + write(("foobar" * 700) + "\n", # 4200 bytes in + [("foobar" * 666) + "foob", # 4000 bytes out + "ar" + ("foobar" * 33)]) # 200 bytes out + + # "Full-width" digits 0-9 (3 bytes per character) + s = "\uff10\uff11\uff12\uff13\uff14\uff15\uff16\uff17\uff18\uff19" + write((s * 150) + "\n", # 4500 bytes in + [s * 100, # 3000 bytes out + s * 50]) # 1500 bytes out + + s = "0123456789" + write(s * 200, []) # 2000 bytes in + write(s * 150, []) # 1500 bytes in + write(s * 51, [s * 350]) # 510 bytes in, 3500 bytes out + write("\n", [s * 51]) # 0 bytes in, 510 bytes out + + def test_bytes(self): + for stream_name, level, fileno in STREAM_INFO: + with self.stream_context(stream_name, level): + stream = getattr(sys, stream_name).buffer + tag = f"python.{stream_name}" + self.assertEqual(f"", repr(stream)) + self.assertIs(stream.writable(), True) + self.assertIs(stream.readable(), False) + self.assertEqual(stream.fileno(), fileno) + + def write(b, lines=None, *, write_len=None): + if write_len is None: + write_len = len(b) + self.assertEqual(write_len, stream.write(b)) + if lines is None: + lines = [b.decode()] + self.assert_logs(level, tag, lines) + + # Single-line messages, + write(b"", []) + + write(b"a") + write(b"Hello") + write(b"Hello world") + write(b" ") + write(b" ") + + # Non-ASCII text + write(b"ol\xc3\xa9") # Spanish + write(b"\xe4\xb8\xad\xe6\x96\x87") # Chinese + + # Non-BMP emoji + write(b"\xf0\x9f\x98\x80") + + # Null bytes are logged using "modified UTF-8". + write(b"\x00", [r"\xc0\x80"]) + write(b"a\x00", [r"a\xc0\x80"]) + write(b"\x00b", [r"\xc0\x80b"]) + write(b"a\x00b", [r"a\xc0\x80b"]) + + # Invalid UTF-8 + write(b"\xff", [r"\xff"]) + write(b"a\xff", [r"a\xff"]) + write(b"\xffb", [r"\xffb"]) + write(b"a\xffb", [r"a\xffb"]) + + # Log entries containing newlines are shown differently by + # `logcat -v tag`, `logcat -v long`, and Android Studio. We + # currently use `logcat -v tag`, which shows each line as if it + # was a separate log entry, but strips a single trailing + # newline. + # + # On newer versions of Android, all three of the above tools (or + # maybe Logcat itself) will also strip any number of leading + # newlines. + write(b"\nx", ["", "x"] if api_level < 30 else ["x"]) + write(b"\na\n", ["", "a"] if api_level < 30 else ["a"]) + write(b"\n", [""]) + write(b"b\n", ["b"]) + write(b"c\n\n", ["c", ""]) + write(b"d\ne", ["d", "e"]) + write(b"xx", ["xx"]) + write(b"f\n\ng", ["f", "", "g"]) + write(b"\n", [""]) + + # "\r\n" should be translated into "\n". + write(b"hello\r\n", ["hello"]) + write(b"hello\r\nworld\r\n", ["hello", "world"]) + write(b"\r\n", [""]) + + # Other bytes-like objects are accepted. + write(bytearray(b"bytearray")) + + mv = memoryview(b"memoryview") + write(mv, ["memoryview"]) # Continuous + write(mv[::2], ["mmrve"]) # Discontinuous + + write( + # Android only supports little-endian architectures, so the + # bytes representation is as follows: + array("H", [ + 0, # 00 00 + 1, # 01 00 + 65534, # FE FF + 65535, # FF FF + ]), + + # After encoding null bytes with modified UTF-8, the only + # valid UTF-8 sequence is \x01. All other bytes are handled + # by backslashreplace. + ["\\xc0\\x80\\xc0\\x80" + "\x01\\xc0\\x80" + "\\xfe\\xff" + "\\xff\\xff"], + write_len=8, + ) + + # Non-bytes-like classes are not accepted. + for obj in ["", "hello", None, 42]: + with self.subTest(obj=obj): + with self.assertRaisesRegex( + TypeError, + fr"write\(\) argument must be bytes-like, not " + fr"{type(obj).__name__}" + ): + stream.write(obj) + + +class TestAndroidRateLimit(unittest.TestCase): + def test_rate_limit(self): + # https://cs.android.com/android/platform/superproject/+/android-14.0.0_r1:system/logging/liblog/include/log/log_read.h;l=39 + PER_MESSAGE_OVERHEAD = 28 + + # https://developer.android.com/ndk/reference/group/logging + ANDROID_LOG_DEBUG = 3 + + # To avoid flooding the test script output, use a different tag rather + # than stdout or stderr. + tag = "python.rate_limit" + stream = TextLogStream(ANDROID_LOG_DEBUG, tag) + + # Make a test message which consumes 1 KB of the logcat buffer. + message = "Line {:03d} " + message += "." * ( + 1024 - PER_MESSAGE_OVERHEAD - len(tag) - len(message.format(0)) + ) + "\n" + + # To avoid depending on the performance of the test device, we mock the + # passage of time. + mock_now = time() + + def mock_time(): + # Avoid division by zero by simulating a small delay. + mock_sleep(0.0001) + return mock_now + + def mock_sleep(duration): + nonlocal mock_now + mock_now += duration + + # See _android_support.py. The default values of these parameters work + # well across a wide range of devices, but we'll use smaller values to + # ensure a quick and reliable test that doesn't flood the log too much. + MAX_KB_PER_SECOND = 100 + BUCKET_KB = 10 + with ( + patch("_android_support.MAX_BYTES_PER_SECOND", MAX_KB_PER_SECOND * 1024), + patch("_android_support.BUCKET_SIZE", BUCKET_KB * 1024), + patch("_android_support.sleep", mock_sleep), + patch("_android_support.time", mock_time), + ): + # Make sure the token bucket is full. + stream.write("Initial message to reset _prev_write_time") + mock_sleep(BUCKET_KB / MAX_KB_PER_SECOND) + line_num = 0 + + # Write BUCKET_KB messages, and return the rate at which they were + # accepted in KB per second. + def write_bucketful(): + nonlocal line_num + start = mock_time() + max_line_num = line_num + BUCKET_KB + while line_num < max_line_num: + stream.write(message.format(line_num)) + line_num += 1 + return BUCKET_KB / (mock_time() - start) + + # The first bucketful should be written with minimal delay. The + # factor of 2 here is not arbitrary: it verifies that the system can + # write fast enough to empty the bucket within two bucketfuls, which + # the next part of the test depends on. + self.assertGreater(write_bucketful(), MAX_KB_PER_SECOND * 2) + + # Write another bucketful to empty the token bucket completely. + write_bucketful() + + # The next bucketful should be written at the rate limit. + self.assertAlmostEqual( + write_bucketful(), MAX_KB_PER_SECOND, + delta=MAX_KB_PER_SECOND * 0.1 + ) + + # Once the token bucket refills, we should go back to full speed. + mock_sleep(BUCKET_KB / MAX_KB_PER_SECOND) + self.assertGreater(write_bucketful(), MAX_KB_PER_SECOND * 2) diff --git a/Lib/test/test_ast.py b/Lib/test/test_ast.py index af3e2bb5eb..8b28686fd6 100644 --- a/Lib/test/test_ast.py +++ b/Lib/test/test_ast.py @@ -388,6 +388,8 @@ def test_invalid_position_information(self): with self.assertRaises(ValueError): compile(tree, '', 'exec') + # XXX RUSTPYTHON: we always require that end ranges be present + @unittest.expectedFailure def test_compilation_of_ast_nodes_with_default_end_position_values(self): tree = ast.Module(body=[ ast.Import(names=[ast.alias(name='builtins', lineno=1, col_offset=0)], lineno=1, col_offset=0), @@ -1531,6 +1533,8 @@ def test_literal_eval_malformed_dict_nodes(self): malformed = ast.Dict(keys=[ast.Constant(1)], values=[ast.Constant(2), ast.Constant(3)]) self.assertRaises(ValueError, ast.literal_eval, malformed) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_literal_eval_trailing_ws(self): self.assertEqual(ast.literal_eval(" -1"), -1) self.assertEqual(ast.literal_eval("\t\t-1"), -1) @@ -1549,6 +1553,8 @@ def test_literal_eval_malformed_lineno(self): with self.assertRaisesRegex(ValueError, msg): ast.literal_eval(node) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_literal_eval_syntax_errors(self): with self.assertRaisesRegex(SyntaxError, "unexpected indent"): ast.literal_eval(r''' @@ -1569,6 +1575,8 @@ def test_bad_integer(self): compile(mod, 'test', 'exec') self.assertIn("invalid integer value: None", str(cm.exception)) + # XXX RUSTPYTHON: we always require that end ranges be present + @unittest.expectedFailure def test_level_as_none(self): body = [ast.ImportFrom(module='time', names=[ast.alias(name='sleep', @@ -2034,8 +2042,6 @@ def test_call(self): call = ast.Call(func, args, bad_keywords) self.expr(call, "must have Load context") - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_num(self): with warnings.catch_warnings(record=True) as wlog: warnings.filterwarnings('ignore', '', DeprecationWarning) @@ -2733,8 +2739,6 @@ def test_source_segment_multi(self): binop = self._parse_value(s_orig) self.assertEqual(ast.get_source_segment(s_orig, binop.left), s_tuple) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_source_segment_padded(self): s_orig = dedent(''' class C: @@ -2756,8 +2760,6 @@ def test_source_segment_endings(self): self._check_content(s, y, 'y = 1') self._check_content(s, z, 'z = 1') - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_source_segment_tabs(self): s = dedent(''' class C: diff --git a/Lib/test/test_asynchat.py b/Lib/test/test_asynchat.py deleted file mode 100644 index 1fcc882ce6..0000000000 --- a/Lib/test/test_asynchat.py +++ /dev/null @@ -1,290 +0,0 @@ -# test asynchat - -from test import support -from test.support import socket_helper -from test.support import threading_helper - - -import asynchat -import asyncore -import errno -import socket -import sys -import threading -import time -import unittest -import unittest.mock - -HOST = socket_helper.HOST -SERVER_QUIT = b'QUIT\n' -TIMEOUT = 3.0 - - -class echo_server(threading.Thread): - # parameter to determine the number of bytes passed back to the - # client each send - chunk_size = 1 - - def __init__(self, event): - threading.Thread.__init__(self) - self.event = event - self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) - self.port = socket_helper.bind_port(self.sock) - # This will be set if the client wants us to wait before echoing - # data back. - self.start_resend_event = None - - def run(self): - self.sock.listen() - self.event.set() - conn, client = self.sock.accept() - self.buffer = b"" - # collect data until quit message is seen - while SERVER_QUIT not in self.buffer: - data = conn.recv(1) - if not data: - break - self.buffer = self.buffer + data - - # remove the SERVER_QUIT message - self.buffer = self.buffer.replace(SERVER_QUIT, b'') - - if self.start_resend_event: - self.start_resend_event.wait() - - # re-send entire set of collected data - try: - # this may fail on some tests, such as test_close_when_done, - # since the client closes the channel when it's done sending - while self.buffer: - n = conn.send(self.buffer[:self.chunk_size]) - time.sleep(0.001) - self.buffer = self.buffer[n:] - except: - pass - - conn.close() - self.sock.close() - -class echo_client(asynchat.async_chat): - - def __init__(self, terminator, server_port): - asynchat.async_chat.__init__(self) - self.contents = [] - self.create_socket(socket.AF_INET, socket.SOCK_STREAM) - self.connect((HOST, server_port)) - self.set_terminator(terminator) - self.buffer = b"" - - def handle_connect(self): - pass - - if sys.platform == 'darwin': - # select.poll returns a select.POLLHUP at the end of the tests - # on darwin, so just ignore it - def handle_expt(self): - pass - - def collect_incoming_data(self, data): - self.buffer += data - - def found_terminator(self): - self.contents.append(self.buffer) - self.buffer = b"" - -def start_echo_server(): - event = threading.Event() - s = echo_server(event) - s.start() - event.wait() - event.clear() - time.sleep(0.01) # Give server time to start accepting. - return s, event - - -class TestAsynchat(unittest.TestCase): - usepoll = False - - def setUp(self): - self._threads = threading_helper.threading_setup() - - def tearDown(self): - threading_helper.threading_cleanup(*self._threads) - - def line_terminator_check(self, term, server_chunk): - event = threading.Event() - s = echo_server(event) - s.chunk_size = server_chunk - s.start() - event.wait() - event.clear() - time.sleep(0.01) # Give server time to start accepting. - c = echo_client(term, s.port) - c.push(b"hello ") - c.push(b"world" + term) - c.push(b"I'm not dead yet!" + term) - c.push(SERVER_QUIT) - asyncore.loop(use_poll=self.usepoll, count=300, timeout=.01) - threading_helper.join_thread(s) - - self.assertEqual(c.contents, [b"hello world", b"I'm not dead yet!"]) - - # the line terminator tests below check receiving variously-sized - # chunks back from the server in order to exercise all branches of - # async_chat.handle_read - - def test_line_terminator1(self): - # test one-character terminator - for l in (1, 2, 3): - self.line_terminator_check(b'\n', l) - - def test_line_terminator2(self): - # test two-character terminator - for l in (1, 2, 3): - self.line_terminator_check(b'\r\n', l) - - def test_line_terminator3(self): - # test three-character terminator - for l in (1, 2, 3): - self.line_terminator_check(b'qqq', l) - - def numeric_terminator_check(self, termlen): - # Try reading a fixed number of bytes - s, event = start_echo_server() - c = echo_client(termlen, s.port) - data = b"hello world, I'm not dead yet!\n" - c.push(data) - c.push(SERVER_QUIT) - asyncore.loop(use_poll=self.usepoll, count=300, timeout=.01) - threading_helper.join_thread(s) - - self.assertEqual(c.contents, [data[:termlen]]) - - def test_numeric_terminator1(self): - # check that ints & longs both work (since type is - # explicitly checked in async_chat.handle_read) - self.numeric_terminator_check(1) - - def test_numeric_terminator2(self): - self.numeric_terminator_check(6) - - def test_none_terminator(self): - # Try reading a fixed number of bytes - s, event = start_echo_server() - c = echo_client(None, s.port) - data = b"hello world, I'm not dead yet!\n" - c.push(data) - c.push(SERVER_QUIT) - asyncore.loop(use_poll=self.usepoll, count=300, timeout=.01) - threading_helper.join_thread(s) - - self.assertEqual(c.contents, []) - self.assertEqual(c.buffer, data) - - def test_simple_producer(self): - s, event = start_echo_server() - c = echo_client(b'\n', s.port) - data = b"hello world\nI'm not dead yet!\n" - p = asynchat.simple_producer(data+SERVER_QUIT, buffer_size=8) - c.push_with_producer(p) - asyncore.loop(use_poll=self.usepoll, count=300, timeout=.01) - threading_helper.join_thread(s) - - self.assertEqual(c.contents, [b"hello world", b"I'm not dead yet!"]) - - def test_string_producer(self): - s, event = start_echo_server() - c = echo_client(b'\n', s.port) - data = b"hello world\nI'm not dead yet!\n" - c.push_with_producer(data+SERVER_QUIT) - asyncore.loop(use_poll=self.usepoll, count=300, timeout=.01) - threading_helper.join_thread(s) - - self.assertEqual(c.contents, [b"hello world", b"I'm not dead yet!"]) - - def test_empty_line(self): - # checks that empty lines are handled correctly - s, event = start_echo_server() - c = echo_client(b'\n', s.port) - c.push(b"hello world\n\nI'm not dead yet!\n") - c.push(SERVER_QUIT) - asyncore.loop(use_poll=self.usepoll, count=300, timeout=.01) - threading_helper.join_thread(s) - - self.assertEqual(c.contents, - [b"hello world", b"", b"I'm not dead yet!"]) - - def test_close_when_done(self): - s, event = start_echo_server() - s.start_resend_event = threading.Event() - c = echo_client(b'\n', s.port) - c.push(b"hello world\nI'm not dead yet!\n") - c.push(SERVER_QUIT) - c.close_when_done() - asyncore.loop(use_poll=self.usepoll, count=300, timeout=.01) - - # Only allow the server to start echoing data back to the client after - # the client has closed its connection. This prevents a race condition - # where the server echoes all of its data before we can check that it - # got any down below. - s.start_resend_event.set() - threading_helper.join_thread(s) - - self.assertEqual(c.contents, []) - # the server might have been able to send a byte or two back, but this - # at least checks that it received something and didn't just fail - # (which could still result in the client not having received anything) - self.assertGreater(len(s.buffer), 0) - - def test_push(self): - # Issue #12523: push() should raise a TypeError if it doesn't get - # a bytes string - s, event = start_echo_server() - c = echo_client(b'\n', s.port) - data = b'bytes\n' - c.push(data) - c.push(bytearray(data)) - c.push(memoryview(data)) - self.assertRaises(TypeError, c.push, 10) - self.assertRaises(TypeError, c.push, 'unicode') - c.push(SERVER_QUIT) - asyncore.loop(use_poll=self.usepoll, count=300, timeout=.01) - threading_helper.join_thread(s) - self.assertEqual(c.contents, [b'bytes', b'bytes', b'bytes']) - - -class TestAsynchat_WithPoll(TestAsynchat): - usepoll = True - - -class TestAsynchatMocked(unittest.TestCase): - def test_blockingioerror(self): - # Issue #16133: handle_read() must ignore BlockingIOError - sock = unittest.mock.Mock() - sock.recv.side_effect = BlockingIOError(errno.EAGAIN) - - dispatcher = asynchat.async_chat() - dispatcher.set_socket(sock) - self.addCleanup(dispatcher.del_channel) - - with unittest.mock.patch.object(dispatcher, 'handle_error') as error: - dispatcher.handle_read() - self.assertFalse(error.called) - - -class TestHelperFunctions(unittest.TestCase): - def test_find_prefix_at_end(self): - self.assertEqual(asynchat.find_prefix_at_end("qwerty\r", "\r\n"), 1) - self.assertEqual(asynchat.find_prefix_at_end("qwertydkjf", "\r\n"), 0) - - -class TestNotConnected(unittest.TestCase): - def test_disallow_negative_terminator(self): - # Issue #11259 - client = asynchat.async_chat() - self.assertRaises(ValueError, client.set_terminator, -1) - - - -if __name__ == "__main__": - unittest.main() diff --git a/Lib/test/test_asyncore.py b/Lib/test/test_asyncore.py deleted file mode 100644 index bd43463da3..0000000000 --- a/Lib/test/test_asyncore.py +++ /dev/null @@ -1,838 +0,0 @@ -import asyncore -import unittest -import select -import os -import socket -import sys -import time -import errno -import struct -import threading - -from test import support -from test.support import os_helper -from test.support import socket_helper -from test.support import threading_helper -from test.support import warnings_helper -from io import BytesIO - -if support.PGO: - raise unittest.SkipTest("test is not helpful for PGO") - - -TIMEOUT = 3 -HAS_UNIX_SOCKETS = hasattr(socket, 'AF_UNIX') - -class dummysocket: - def __init__(self): - self.closed = False - - def close(self): - self.closed = True - - def fileno(self): - return 42 - -class dummychannel: - def __init__(self): - self.socket = dummysocket() - - def close(self): - self.socket.close() - -class exitingdummy: - def __init__(self): - pass - - def handle_read_event(self): - raise asyncore.ExitNow() - - handle_write_event = handle_read_event - handle_close = handle_read_event - handle_expt_event = handle_read_event - -class crashingdummy: - def __init__(self): - self.error_handled = False - - def handle_read_event(self): - raise Exception() - - handle_write_event = handle_read_event - handle_close = handle_read_event - handle_expt_event = handle_read_event - - def handle_error(self): - self.error_handled = True - -# used when testing senders; just collects what it gets until newline is sent -def capture_server(evt, buf, serv): - try: - serv.listen() - conn, addr = serv.accept() - except socket.timeout: - pass - else: - n = 200 - start = time.monotonic() - while n > 0 and time.monotonic() - start < 3.0: - r, w, e = select.select([conn], [], [], 0.1) - if r: - n -= 1 - data = conn.recv(10) - # keep everything except for the newline terminator - buf.write(data.replace(b'\n', b'')) - if b'\n' in data: - break - time.sleep(0.01) - - conn.close() - finally: - serv.close() - evt.set() - -def bind_af_aware(sock, addr): - """Helper function to bind a socket according to its family.""" - if HAS_UNIX_SOCKETS and sock.family == socket.AF_UNIX: - # Make sure the path doesn't exist. - os_helper.unlink(addr) - socket_helper.bind_unix_socket(sock, addr) - else: - sock.bind(addr) - - -class HelperFunctionTests(unittest.TestCase): - def test_readwriteexc(self): - # Check exception handling behavior of read, write and _exception - - # check that ExitNow exceptions in the object handler method - # bubbles all the way up through asyncore read/write/_exception calls - tr1 = exitingdummy() - self.assertRaises(asyncore.ExitNow, asyncore.read, tr1) - self.assertRaises(asyncore.ExitNow, asyncore.write, tr1) - self.assertRaises(asyncore.ExitNow, asyncore._exception, tr1) - - # check that an exception other than ExitNow in the object handler - # method causes the handle_error method to get called - tr2 = crashingdummy() - asyncore.read(tr2) - self.assertEqual(tr2.error_handled, True) - - tr2 = crashingdummy() - asyncore.write(tr2) - self.assertEqual(tr2.error_handled, True) - - tr2 = crashingdummy() - asyncore._exception(tr2) - self.assertEqual(tr2.error_handled, True) - - # asyncore.readwrite uses constants in the select module that - # are not present in Windows systems (see this thread: - # http://mail.python.org/pipermail/python-list/2001-October/109973.html) - # These constants should be present as long as poll is available - - @unittest.skipUnless(hasattr(select, 'poll'), 'select.poll required') - def test_readwrite(self): - # Check that correct methods are called by readwrite() - - attributes = ('read', 'expt', 'write', 'closed', 'error_handled') - - expected = ( - (select.POLLIN, 'read'), - (select.POLLPRI, 'expt'), - (select.POLLOUT, 'write'), - (select.POLLERR, 'closed'), - (select.POLLHUP, 'closed'), - (select.POLLNVAL, 'closed'), - ) - - class testobj: - def __init__(self): - self.read = False - self.write = False - self.closed = False - self.expt = False - self.error_handled = False - - def handle_read_event(self): - self.read = True - - def handle_write_event(self): - self.write = True - - def handle_close(self): - self.closed = True - - def handle_expt_event(self): - self.expt = True - - def handle_error(self): - self.error_handled = True - - for flag, expectedattr in expected: - tobj = testobj() - self.assertEqual(getattr(tobj, expectedattr), False) - asyncore.readwrite(tobj, flag) - - # Only the attribute modified by the routine we expect to be - # called should be True. - for attr in attributes: - self.assertEqual(getattr(tobj, attr), attr==expectedattr) - - # check that ExitNow exceptions in the object handler method - # bubbles all the way up through asyncore readwrite call - tr1 = exitingdummy() - self.assertRaises(asyncore.ExitNow, asyncore.readwrite, tr1, flag) - - # check that an exception other than ExitNow in the object handler - # method causes the handle_error method to get called - tr2 = crashingdummy() - self.assertEqual(tr2.error_handled, False) - asyncore.readwrite(tr2, flag) - self.assertEqual(tr2.error_handled, True) - - def test_closeall(self): - self.closeall_check(False) - - def test_closeall_default(self): - self.closeall_check(True) - - def closeall_check(self, usedefault): - # Check that close_all() closes everything in a given map - - l = [] - testmap = {} - for i in range(10): - c = dummychannel() - l.append(c) - self.assertEqual(c.socket.closed, False) - testmap[i] = c - - if usedefault: - socketmap = asyncore.socket_map - try: - asyncore.socket_map = testmap - asyncore.close_all() - finally: - testmap, asyncore.socket_map = asyncore.socket_map, socketmap - else: - asyncore.close_all(testmap) - - self.assertEqual(len(testmap), 0) - - for c in l: - self.assertEqual(c.socket.closed, True) - - def test_compact_traceback(self): - try: - raise Exception("I don't like spam!") - except: - real_t, real_v, real_tb = sys.exc_info() - r = asyncore.compact_traceback() - else: - self.fail("Expected exception") - - (f, function, line), t, v, info = r - self.assertEqual(os.path.split(f)[-1], 'test_asyncore.py') - self.assertEqual(function, 'test_compact_traceback') - self.assertEqual(t, real_t) - self.assertEqual(v, real_v) - self.assertEqual(info, '[%s|%s|%s]' % (f, function, line)) - - -class DispatcherTests(unittest.TestCase): - def setUp(self): - pass - - def tearDown(self): - asyncore.close_all() - - def test_basic(self): - d = asyncore.dispatcher() - self.assertEqual(d.readable(), True) - self.assertEqual(d.writable(), True) - - def test_repr(self): - d = asyncore.dispatcher() - self.assertEqual(repr(d), '' % id(d)) - - def test_log(self): - d = asyncore.dispatcher() - - # capture output of dispatcher.log() (to stderr) - l1 = "Lovely spam! Wonderful spam!" - l2 = "I don't like spam!" - with support.captured_stderr() as stderr: - d.log(l1) - d.log(l2) - - lines = stderr.getvalue().splitlines() - self.assertEqual(lines, ['log: %s' % l1, 'log: %s' % l2]) - - def test_log_info(self): - d = asyncore.dispatcher() - - # capture output of dispatcher.log_info() (to stdout via print) - l1 = "Have you got anything without spam?" - l2 = "Why can't she have egg bacon spam and sausage?" - l3 = "THAT'S got spam in it!" - with support.captured_stdout() as stdout: - d.log_info(l1, 'EGGS') - d.log_info(l2) - d.log_info(l3, 'SPAM') - - lines = stdout.getvalue().splitlines() - expected = ['EGGS: %s' % l1, 'info: %s' % l2, 'SPAM: %s' % l3] - self.assertEqual(lines, expected) - - def test_unhandled(self): - d = asyncore.dispatcher() - d.ignore_log_types = () - - # capture output of dispatcher.log_info() (to stdout via print) - with support.captured_stdout() as stdout: - d.handle_expt() - d.handle_read() - d.handle_write() - d.handle_connect() - - lines = stdout.getvalue().splitlines() - expected = ['warning: unhandled incoming priority event', - 'warning: unhandled read event', - 'warning: unhandled write event', - 'warning: unhandled connect event'] - self.assertEqual(lines, expected) - - def test_strerror(self): - # refers to bug #8573 - err = asyncore._strerror(errno.EPERM) - if hasattr(os, 'strerror'): - self.assertEqual(err, os.strerror(errno.EPERM)) - err = asyncore._strerror(-1) - self.assertTrue(err != "") - - -class dispatcherwithsend_noread(asyncore.dispatcher_with_send): - def readable(self): - return False - - def handle_connect(self): - pass - - -class DispatcherWithSendTests(unittest.TestCase): - def setUp(self): - pass - - def tearDown(self): - asyncore.close_all() - - @threading_helper.reap_threads - def test_send(self): - evt = threading.Event() - sock = socket.socket() - sock.settimeout(3) - port = socket_helper.bind_port(sock) - - cap = BytesIO() - args = (evt, cap, sock) - t = threading.Thread(target=capture_server, args=args) - t.start() - try: - # wait a little longer for the server to initialize (it sometimes - # refuses connections on slow machines without this wait) - time.sleep(0.2) - - data = b"Suppose there isn't a 16-ton weight?" - d = dispatcherwithsend_noread() - d.create_socket() - d.connect((socket_helper.HOST, port)) - - # give time for socket to connect - time.sleep(0.1) - - d.send(data) - d.send(data) - d.send(b'\n') - - n = 1000 - while d.out_buffer and n > 0: - asyncore.poll() - n -= 1 - - evt.wait() - - self.assertEqual(cap.getvalue(), data*2) - finally: - threading_helper.join_thread(t) - - -@unittest.skipUnless(hasattr(asyncore, 'file_wrapper'), - 'asyncore.file_wrapper required') -class FileWrapperTest(unittest.TestCase): - def setUp(self): - self.d = b"It's not dead, it's sleeping!" - with open(os_helper.TESTFN, 'wb') as file: - file.write(self.d) - - def tearDown(self): - os_helper.unlink(os_helper.TESTFN) - - def test_recv(self): - fd = os.open(os_helper.TESTFN, os.O_RDONLY) - w = asyncore.file_wrapper(fd) - os.close(fd) - - self.assertNotEqual(w.fd, fd) - self.assertNotEqual(w.fileno(), fd) - self.assertEqual(w.recv(13), b"It's not dead") - self.assertEqual(w.read(6), b", it's") - w.close() - self.assertRaises(OSError, w.read, 1) - - def test_send(self): - d1 = b"Come again?" - d2 = b"I want to buy some cheese." - fd = os.open(os_helper.TESTFN, os.O_WRONLY | os.O_APPEND) - w = asyncore.file_wrapper(fd) - os.close(fd) - - w.write(d1) - w.send(d2) - w.close() - with open(os_helper.TESTFN, 'rb') as file: - self.assertEqual(file.read(), self.d + d1 + d2) - - @unittest.skipUnless(hasattr(asyncore, 'file_dispatcher'), - 'asyncore.file_dispatcher required') - def test_dispatcher(self): - fd = os.open(os_helper.TESTFN, os.O_RDONLY) - data = [] - class FileDispatcher(asyncore.file_dispatcher): - def handle_read(self): - data.append(self.recv(29)) - s = FileDispatcher(fd) - os.close(fd) - asyncore.loop(timeout=0.01, use_poll=True, count=2) - self.assertEqual(b"".join(data), self.d) - - def test_resource_warning(self): - # Issue #11453 - fd = os.open(os_helper.TESTFN, os.O_RDONLY) - f = asyncore.file_wrapper(fd) - - os.close(fd) - with warnings_helper.check_warnings(('', ResourceWarning)): - f = None - support.gc_collect() - - def test_close_twice(self): - fd = os.open(os_helper.TESTFN, os.O_RDONLY) - f = asyncore.file_wrapper(fd) - os.close(fd) - - os.close(f.fd) # file_wrapper dupped fd - with self.assertRaises(OSError): - f.close() - - self.assertEqual(f.fd, -1) - # calling close twice should not fail - f.close() - - -class BaseTestHandler(asyncore.dispatcher): - - def __init__(self, sock=None): - asyncore.dispatcher.__init__(self, sock) - self.flag = False - - def handle_accept(self): - raise Exception("handle_accept not supposed to be called") - - def handle_accepted(self): - raise Exception("handle_accepted not supposed to be called") - - def handle_connect(self): - raise Exception("handle_connect not supposed to be called") - - def handle_expt(self): - raise Exception("handle_expt not supposed to be called") - - def handle_close(self): - raise Exception("handle_close not supposed to be called") - - def handle_error(self): - raise - - -class BaseServer(asyncore.dispatcher): - """A server which listens on an address and dispatches the - connection to a handler. - """ - - def __init__(self, family, addr, handler=BaseTestHandler): - asyncore.dispatcher.__init__(self) - self.create_socket(family) - self.set_reuse_addr() - bind_af_aware(self.socket, addr) - self.listen(5) - self.handler = handler - - @property - def address(self): - return self.socket.getsockname() - - def handle_accepted(self, sock, addr): - self.handler(sock) - - def handle_error(self): - raise - - -class BaseClient(BaseTestHandler): - - def __init__(self, family, address): - BaseTestHandler.__init__(self) - self.create_socket(family) - self.connect(address) - - def handle_connect(self): - pass - - -class BaseTestAPI: - - def tearDown(self): - asyncore.close_all(ignore_all=True) - - def loop_waiting_for_flag(self, instance, timeout=5): - timeout = float(timeout) / 100 - count = 100 - while asyncore.socket_map and count > 0: - asyncore.loop(timeout=0.01, count=1, use_poll=self.use_poll) - if instance.flag: - return - count -= 1 - time.sleep(timeout) - self.fail("flag not set") - - def test_handle_connect(self): - # make sure handle_connect is called on connect() - - class TestClient(BaseClient): - def handle_connect(self): - self.flag = True - - server = BaseServer(self.family, self.addr) - client = TestClient(self.family, server.address) - self.loop_waiting_for_flag(client) - - def test_handle_accept(self): - # make sure handle_accept() is called when a client connects - - class TestListener(BaseTestHandler): - - def __init__(self, family, addr): - BaseTestHandler.__init__(self) - self.create_socket(family) - bind_af_aware(self.socket, addr) - self.listen(5) - self.address = self.socket.getsockname() - - def handle_accept(self): - self.flag = True - - server = TestListener(self.family, self.addr) - client = BaseClient(self.family, server.address) - self.loop_waiting_for_flag(server) - - def test_handle_accepted(self): - # make sure handle_accepted() is called when a client connects - - class TestListener(BaseTestHandler): - - def __init__(self, family, addr): - BaseTestHandler.__init__(self) - self.create_socket(family) - bind_af_aware(self.socket, addr) - self.listen(5) - self.address = self.socket.getsockname() - - def handle_accept(self): - asyncore.dispatcher.handle_accept(self) - - def handle_accepted(self, sock, addr): - sock.close() - self.flag = True - - server = TestListener(self.family, self.addr) - client = BaseClient(self.family, server.address) - self.loop_waiting_for_flag(server) - - - def test_handle_read(self): - # make sure handle_read is called on data received - - class TestClient(BaseClient): - def handle_read(self): - self.flag = True - - class TestHandler(BaseTestHandler): - def __init__(self, conn): - BaseTestHandler.__init__(self, conn) - self.send(b'x' * 1024) - - server = BaseServer(self.family, self.addr, TestHandler) - client = TestClient(self.family, server.address) - self.loop_waiting_for_flag(client) - - def test_handle_write(self): - # make sure handle_write is called - - class TestClient(BaseClient): - def handle_write(self): - self.flag = True - - server = BaseServer(self.family, self.addr) - client = TestClient(self.family, server.address) - self.loop_waiting_for_flag(client) - - def test_handle_close(self): - # make sure handle_close is called when the other end closes - # the connection - - class TestClient(BaseClient): - - def handle_read(self): - # in order to make handle_close be called we are supposed - # to make at least one recv() call - self.recv(1024) - - def handle_close(self): - self.flag = True - self.close() - - class TestHandler(BaseTestHandler): - def __init__(self, conn): - BaseTestHandler.__init__(self, conn) - self.close() - - server = BaseServer(self.family, self.addr, TestHandler) - client = TestClient(self.family, server.address) - self.loop_waiting_for_flag(client) - - def test_handle_close_after_conn_broken(self): - # Check that ECONNRESET/EPIPE is correctly handled (issues #5661 and - # #11265). - - data = b'\0' * 128 - - class TestClient(BaseClient): - - def handle_write(self): - self.send(data) - - def handle_close(self): - self.flag = True - self.close() - - def handle_expt(self): - self.flag = True - self.close() - - class TestHandler(BaseTestHandler): - - def handle_read(self): - self.recv(len(data)) - self.close() - - def writable(self): - return False - - server = BaseServer(self.family, self.addr, TestHandler) - client = TestClient(self.family, server.address) - self.loop_waiting_for_flag(client) - - @unittest.skipIf(sys.platform.startswith("sunos"), - "OOB support is broken on Solaris") - def test_handle_expt(self): - # Make sure handle_expt is called on OOB data received. - # Note: this might fail on some platforms as OOB data is - # tenuously supported and rarely used. - if HAS_UNIX_SOCKETS and self.family == socket.AF_UNIX: - self.skipTest("Not applicable to AF_UNIX sockets.") - - if sys.platform == "darwin" and self.use_poll: - self.skipTest("poll may fail on macOS; see issue #28087") - - class TestClient(BaseClient): - def handle_expt(self): - self.socket.recv(1024, socket.MSG_OOB) - self.flag = True - - class TestHandler(BaseTestHandler): - def __init__(self, conn): - BaseTestHandler.__init__(self, conn) - self.socket.send(bytes(chr(244), 'latin-1'), socket.MSG_OOB) - - server = BaseServer(self.family, self.addr, TestHandler) - client = TestClient(self.family, server.address) - self.loop_waiting_for_flag(client) - - def test_handle_error(self): - - class TestClient(BaseClient): - def handle_write(self): - 1.0 / 0 - def handle_error(self): - self.flag = True - try: - raise - except ZeroDivisionError: - pass - else: - raise Exception("exception not raised") - - server = BaseServer(self.family, self.addr) - client = TestClient(self.family, server.address) - self.loop_waiting_for_flag(client) - - def test_connection_attributes(self): - server = BaseServer(self.family, self.addr) - client = BaseClient(self.family, server.address) - - # we start disconnected - self.assertFalse(server.connected) - self.assertTrue(server.accepting) - # this can't be taken for granted across all platforms - #self.assertFalse(client.connected) - self.assertFalse(client.accepting) - - # execute some loops so that client connects to server - asyncore.loop(timeout=0.01, use_poll=self.use_poll, count=100) - self.assertFalse(server.connected) - self.assertTrue(server.accepting) - self.assertTrue(client.connected) - self.assertFalse(client.accepting) - - # disconnect the client - client.close() - self.assertFalse(server.connected) - self.assertTrue(server.accepting) - self.assertFalse(client.connected) - self.assertFalse(client.accepting) - - # stop serving - server.close() - self.assertFalse(server.connected) - self.assertFalse(server.accepting) - - def test_create_socket(self): - s = asyncore.dispatcher() - s.create_socket(self.family) - self.assertEqual(s.socket.type, socket.SOCK_STREAM) - self.assertEqual(s.socket.family, self.family) - self.assertEqual(s.socket.gettimeout(), 0) - self.assertFalse(s.socket.get_inheritable()) - - def test_bind(self): - if HAS_UNIX_SOCKETS and self.family == socket.AF_UNIX: - self.skipTest("Not applicable to AF_UNIX sockets.") - s1 = asyncore.dispatcher() - s1.create_socket(self.family) - s1.bind(self.addr) - s1.listen(5) - port = s1.socket.getsockname()[1] - - s2 = asyncore.dispatcher() - s2.create_socket(self.family) - # EADDRINUSE indicates the socket was correctly bound - self.assertRaises(OSError, s2.bind, (self.addr[0], port)) - - def test_set_reuse_addr(self): - if HAS_UNIX_SOCKETS and self.family == socket.AF_UNIX: - self.skipTest("Not applicable to AF_UNIX sockets.") - - with socket.socket(self.family) as sock: - try: - sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) - except OSError: - unittest.skip("SO_REUSEADDR not supported on this platform") - else: - # if SO_REUSEADDR succeeded for sock we expect asyncore - # to do the same - s = asyncore.dispatcher(socket.socket(self.family)) - self.assertFalse(s.socket.getsockopt(socket.SOL_SOCKET, - socket.SO_REUSEADDR)) - s.socket.close() - s.create_socket(self.family) - s.set_reuse_addr() - self.assertTrue(s.socket.getsockopt(socket.SOL_SOCKET, - socket.SO_REUSEADDR)) - - @threading_helper.reap_threads - def test_quick_connect(self): - # see: http://bugs.python.org/issue10340 - if self.family not in (socket.AF_INET, getattr(socket, "AF_INET6", object())): - self.skipTest("test specific to AF_INET and AF_INET6") - - server = BaseServer(self.family, self.addr) - # run the thread 500 ms: the socket should be connected in 200 ms - t = threading.Thread(target=lambda: asyncore.loop(timeout=0.1, - count=5)) - t.start() - try: - with socket.socket(self.family, socket.SOCK_STREAM) as s: - s.settimeout(.2) - s.setsockopt(socket.SOL_SOCKET, socket.SO_LINGER, - struct.pack('ii', 1, 0)) - - try: - s.connect(server.address) - except OSError: - pass - finally: - threading_helper.join_thread(t) - -class TestAPI_UseIPv4Sockets(BaseTestAPI): - family = socket.AF_INET - addr = (socket_helper.HOST, 0) - -@unittest.skipUnless(socket_helper.IPV6_ENABLED, 'IPv6 support required') -class TestAPI_UseIPv6Sockets(BaseTestAPI): - family = socket.AF_INET6 - addr = (socket_helper.HOSTv6, 0) - -@unittest.skipUnless(HAS_UNIX_SOCKETS, 'Unix sockets required') -class TestAPI_UseUnixSockets(BaseTestAPI): - if HAS_UNIX_SOCKETS: - family = socket.AF_UNIX - addr = os_helper.TESTFN - - def tearDown(self): - os_helper.unlink(self.addr) - BaseTestAPI.tearDown(self) - -class TestAPI_UseIPv4Select(TestAPI_UseIPv4Sockets, unittest.TestCase): - use_poll = False - -@unittest.skipUnless(hasattr(select, 'poll'), 'select.poll required') -class TestAPI_UseIPv4Poll(TestAPI_UseIPv4Sockets, unittest.TestCase): - use_poll = True - -class TestAPI_UseIPv6Select(TestAPI_UseIPv6Sockets, unittest.TestCase): - use_poll = False - -@unittest.skipUnless(hasattr(select, 'poll'), 'select.poll required') -class TestAPI_UseIPv6Poll(TestAPI_UseIPv6Sockets, unittest.TestCase): - use_poll = True - -class TestAPI_UseUnixSocketsSelect(TestAPI_UseUnixSockets, unittest.TestCase): - use_poll = False - -@unittest.skipUnless(hasattr(select, 'poll'), 'select.poll required') -class TestAPI_UseUnixSocketsPoll(TestAPI_UseUnixSockets, unittest.TestCase): - use_poll = True - -if __name__ == "__main__": - unittest.main() diff --git a/Lib/test/test_audit.py b/Lib/test/test_audit.py new file mode 100644 index 0000000000..ddd9f95114 --- /dev/null +++ b/Lib/test/test_audit.py @@ -0,0 +1,318 @@ +"""Tests for sys.audit and sys.addaudithook +""" + +import subprocess +import sys +import unittest +from test import support +from test.support import import_helper +from test.support import os_helper + + +if not hasattr(sys, "addaudithook") or not hasattr(sys, "audit"): + raise unittest.SkipTest("test only relevant when sys.audit is available") + +AUDIT_TESTS_PY = support.findfile("audit-tests.py") + + +class AuditTest(unittest.TestCase): + maxDiff = None + + @support.requires_subprocess() + def run_test_in_subprocess(self, *args): + with subprocess.Popen( + [sys.executable, "-X utf8", AUDIT_TESTS_PY, *args], + encoding="utf-8", + stdout=subprocess.PIPE, + stderr=subprocess.PIPE, + ) as p: + p.wait() + return p, p.stdout.read(), p.stderr.read() + + def do_test(self, *args): + proc, stdout, stderr = self.run_test_in_subprocess(*args) + + sys.stdout.write(stdout) + sys.stderr.write(stderr) + if proc.returncode: + self.fail(stderr) + + def run_python(self, *args, expect_stderr=False): + events = [] + proc, stdout, stderr = self.run_test_in_subprocess(*args) + if not expect_stderr or support.verbose: + sys.stderr.write(stderr) + return ( + proc.returncode, + [line.strip().partition(" ") for line in stdout.splitlines()], + stderr, + ) + + def test_basic(self): + self.do_test("test_basic") + + def test_block_add_hook(self): + self.do_test("test_block_add_hook") + + def test_block_add_hook_baseexception(self): + self.do_test("test_block_add_hook_baseexception") + + def test_marshal(self): + import_helper.import_module("marshal") + + self.do_test("test_marshal") + + def test_pickle(self): + import_helper.import_module("pickle") + + self.do_test("test_pickle") + + def test_monkeypatch(self): + self.do_test("test_monkeypatch") + + def test_open(self): + self.do_test("test_open", os_helper.TESTFN) + + def test_cantrace(self): + self.do_test("test_cantrace") + + def test_mmap(self): + self.do_test("test_mmap") + + def test_excepthook(self): + returncode, events, stderr = self.run_python("test_excepthook") + if not returncode: + self.fail(f"Expected fatal exception\n{stderr}") + + self.assertSequenceEqual( + [("sys.excepthook", " ", "RuntimeError('fatal-error')")], events + ) + + def test_unraisablehook(self): + import_helper.import_module("_testcapi") + returncode, events, stderr = self.run_python("test_unraisablehook") + if returncode: + self.fail(stderr) + + self.assertEqual(events[0][0], "sys.unraisablehook") + self.assertEqual( + events[0][2], + "RuntimeError('nonfatal-error') Exception ignored for audit hook test", + ) + + def test_winreg(self): + import_helper.import_module("winreg") + returncode, events, stderr = self.run_python("test_winreg") + if returncode: + self.fail(stderr) + + self.assertEqual(events[0][0], "winreg.OpenKey") + self.assertEqual(events[1][0], "winreg.OpenKey/result") + expected = events[1][2] + self.assertTrue(expected) + self.assertSequenceEqual(["winreg.EnumKey", " ", f"{expected} 0"], events[2]) + self.assertSequenceEqual(["winreg.EnumKey", " ", f"{expected} 10000"], events[3]) + self.assertSequenceEqual(["winreg.PyHKEY.Detach", " ", expected], events[4]) + + def test_socket(self): + import_helper.import_module("socket") + returncode, events, stderr = self.run_python("test_socket") + if returncode: + self.fail(stderr) + + if support.verbose: + print(*events, sep='\n') + self.assertEqual(events[0][0], "socket.gethostname") + self.assertEqual(events[1][0], "socket.__new__") + self.assertEqual(events[2][0], "socket.bind") + self.assertTrue(events[2][2].endswith("('127.0.0.1', 8080)")) + + def test_gc(self): + returncode, events, stderr = self.run_python("test_gc") + if returncode: + self.fail(stderr) + + if support.verbose: + print(*events, sep='\n') + self.assertEqual( + [event[0] for event in events], + ["gc.get_objects", "gc.get_referrers", "gc.get_referents"] + ) + + + @support.requires_resource('network') + def test_http(self): + import_helper.import_module("http.client") + returncode, events, stderr = self.run_python("test_http_client") + if returncode: + self.fail(stderr) + + if support.verbose: + print(*events, sep='\n') + self.assertEqual(events[0][0], "http.client.connect") + self.assertEqual(events[0][2], "www.python.org 80") + self.assertEqual(events[1][0], "http.client.send") + if events[1][2] != '[cannot send]': + self.assertIn('HTTP', events[1][2]) + + + def test_sqlite3(self): + sqlite3 = import_helper.import_module("sqlite3") + returncode, events, stderr = self.run_python("test_sqlite3") + if returncode: + self.fail(stderr) + + if support.verbose: + print(*events, sep='\n') + actual = [ev[0] for ev in events] + expected = ["sqlite3.connect", "sqlite3.connect/handle"] * 2 + + if hasattr(sqlite3.Connection, "enable_load_extension"): + expected += [ + "sqlite3.enable_load_extension", + "sqlite3.load_extension", + ] + self.assertEqual(actual, expected) + + + def test_sys_getframe(self): + returncode, events, stderr = self.run_python("test_sys_getframe") + if returncode: + self.fail(stderr) + + if support.verbose: + print(*events, sep='\n') + actual = [(ev[0], ev[2]) for ev in events] + expected = [("sys._getframe", "test_sys_getframe")] + + self.assertEqual(actual, expected) + + def test_sys_getframemodulename(self): + returncode, events, stderr = self.run_python("test_sys_getframemodulename") + if returncode: + self.fail(stderr) + + if support.verbose: + print(*events, sep='\n') + actual = [(ev[0], ev[2]) for ev in events] + expected = [("sys._getframemodulename", "0")] + + self.assertEqual(actual, expected) + + + def test_threading(self): + returncode, events, stderr = self.run_python("test_threading") + if returncode: + self.fail(stderr) + + if support.verbose: + print(*events, sep='\n') + actual = [(ev[0], ev[2]) for ev in events] + expected = [ + ("_thread.start_new_thread", "(, (), None)"), + ("test.test_func", "()"), + ("_thread.start_joinable_thread", "(, 1, None)"), + ("test.test_func", "()"), + ] + + self.assertEqual(actual, expected) + + + def test_wmi_exec_query(self): + import_helper.import_module("_wmi") + returncode, events, stderr = self.run_python("test_wmi_exec_query") + if returncode: + self.fail(stderr) + + if support.verbose: + print(*events, sep='\n') + actual = [(ev[0], ev[2]) for ev in events] + expected = [("_wmi.exec_query", "SELECT * FROM Win32_OperatingSystem")] + + self.assertEqual(actual, expected) + + def test_syslog(self): + syslog = import_helper.import_module("syslog") + + returncode, events, stderr = self.run_python("test_syslog") + if returncode: + self.fail(stderr) + + if support.verbose: + print('Events:', *events, sep='\n ') + + self.assertSequenceEqual( + events, + [('syslog.openlog', ' ', f'python 0 {syslog.LOG_USER}'), + ('syslog.syslog', ' ', f'{syslog.LOG_INFO} test'), + ('syslog.setlogmask', ' ', f'{syslog.LOG_DEBUG}'), + ('syslog.closelog', '', ''), + ('syslog.syslog', ' ', f'{syslog.LOG_INFO} test2'), + ('syslog.openlog', ' ', f'audit-tests.py 0 {syslog.LOG_USER}'), + ('syslog.openlog', ' ', f'audit-tests.py {syslog.LOG_NDELAY} {syslog.LOG_LOCAL0}'), + ('syslog.openlog', ' ', f'None 0 {syslog.LOG_USER}'), + ('syslog.closelog', '', '')] + ) + + def test_not_in_gc(self): + returncode, _, stderr = self.run_python("test_not_in_gc") + if returncode: + self.fail(stderr) + + def test_time(self): + returncode, events, stderr = self.run_python("test_time", "print") + if returncode: + self.fail(stderr) + + if support.verbose: + print(*events, sep='\n') + + actual = [(ev[0], ev[2]) for ev in events] + expected = [("time.sleep", "0"), + ("time.sleep", "0.0625"), + ("time.sleep", "-1")] + + self.assertEqual(actual, expected) + + def test_time_fail(self): + returncode, events, stderr = self.run_python("test_time", "fail", + expect_stderr=True) + self.assertNotEqual(returncode, 0) + self.assertIn('hook failed', stderr.splitlines()[-1]) + + def test_sys_monitoring_register_callback(self): + returncode, events, stderr = self.run_python("test_sys_monitoring_register_callback") + if returncode: + self.fail(stderr) + + if support.verbose: + print(*events, sep='\n') + actual = [(ev[0], ev[2]) for ev in events] + expected = [("sys.monitoring.register_callback", "(None,)")] + + self.assertEqual(actual, expected) + + def test_winapi_createnamedpipe(self): + winapi = import_helper.import_module("_winapi") + + pipe_name = r"\\.\pipe\LOCAL\test_winapi_createnamed_pipe" + returncode, events, stderr = self.run_python("test_winapi_createnamedpipe", pipe_name) + if returncode: + self.fail(stderr) + + if support.verbose: + print(*events, sep='\n') + actual = [(ev[0], ev[2]) for ev in events] + expected = [("_winapi.CreateNamedPipe", f"({pipe_name!r}, 3, 8)")] + + self.assertEqual(actual, expected) + + def test_assert_unicode(self): + # See gh-126018 + returncode, _, stderr = self.run_python("test_assert_unicode") + if returncode: + self.fail(stderr) + + +if __name__ == "__main__": + unittest.main() diff --git a/Lib/test/test_baseexception.py b/Lib/test/test_baseexception.py index a7a20dc415..e19162a6ab 100644 --- a/Lib/test/test_baseexception.py +++ b/Lib/test/test_baseexception.py @@ -18,8 +18,6 @@ def verify_instance_interface(self, ins): "%s missing %s attribute" % (ins.__class__.__name__, attr)) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_inheritance(self): # Make sure the inheritance hierarchy matches the documentation exc_set = set() @@ -81,9 +79,10 @@ def test_inheritance(self): finally: inheritance_tree.close() + # Underscore-prefixed (private) exceptions don't need to be documented + exc_set = set(e for e in exc_set if not e.startswith('_')) # RUSTPYTHON specific exc_set.discard("JitError") - self.assertEqual(len(exc_set), 0, "%s not accounted for" % exc_set) interface_tests = ("length", "args", "str", "repr") @@ -137,7 +136,7 @@ class Value(str): d[HashThisKeyWillClearTheDict()] = Value() # refcount of Value() is 1 now - # Exception.__setstate__ should aquire a strong reference of key and + # Exception.__setstate__ should acquire a strong reference of key and # value in the dict. Otherwise, Value()'s refcount would go below # zero in the tp_hash call in PyObject_SetAttr(), and it would cause # crash in GC. diff --git a/Lib/test/test_bigmem.py b/Lib/test/test_bigmem.py index e360ec15a8..aaa9972bc4 100644 --- a/Lib/test/test_bigmem.py +++ b/Lib/test/test_bigmem.py @@ -710,8 +710,6 @@ def test_repr_large(self, size): # original (Py_UCS2) one # There's also some overallocation when resizing the ascii() result # that isn't taken into account here. - # TODO: RUSTPYTHON - @unittest.expectedFailure @bigmemtest(size=_2G // 5 + 1, memuse=ucs2_char_size + ucs4_char_size + ascii_char_size * 6) def test_unicode_repr(self, size): diff --git a/Lib/test/test_bool.py b/Lib/test/test_bool.py index 09eefd422b..34ecb45f16 100644 --- a/Lib/test/test_bool.py +++ b/Lib/test/test_bool.py @@ -46,8 +46,6 @@ def test_complex(self): self.assertEqual(complex(True), 1+0j) self.assertEqual(complex(True), True) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_math(self): self.assertEqual(+False, 0) self.assertIsNot(+False, False) diff --git a/Lib/test/test_builtin.py b/Lib/test/test_builtin.py index 13d67e1855..b4119305f9 100644 --- a/Lib/test/test_builtin.py +++ b/Lib/test/test_builtin.py @@ -226,8 +226,6 @@ def test_any(self): S = [10, 20, 30] self.assertEqual(any(x > 42 for x in S), False) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_ascii(self): self.assertEqual(ascii(''), '\'\'') self.assertEqual(ascii(0), '0') diff --git a/Lib/test/test_bytes.py b/Lib/test/test_bytes.py index baf84642ee..cc1affc669 100644 --- a/Lib/test/test_bytes.py +++ b/Lib/test/test_bytes.py @@ -1992,7 +1992,7 @@ def test_join(self): s3 = s1.join([b"abcd"]) self.assertIs(type(s3), self.basetype) - @unittest.skip("TODO: RUSTPYHON, Fails on ByteArraySubclassWithSlotsTest") + @unittest.skip("TODO: RUSTPYTHON, Fails on ByteArraySubclassWithSlotsTest") def test_pickle(self): a = self.type2test(b"abcd") a.x = 10 @@ -2007,7 +2007,7 @@ def test_pickle(self): self.assertEqual(type(a.z), type(b.z)) self.assertFalse(hasattr(b, 'y')) - @unittest.skip("TODO: RUSTPYHON, Fails on ByteArraySubclassWithSlotsTest") + @unittest.skip("TODO: RUSTPYTHON, Fails on ByteArraySubclassWithSlotsTest") def test_copy(self): a = self.type2test(b"abcd") a.x = 10 diff --git a/Lib/test/test_bz2.py b/Lib/test/test_bz2.py index 1f0b9adc36..b716d6016b 100644 --- a/Lib/test/test_bz2.py +++ b/Lib/test/test_bz2.py @@ -676,6 +676,8 @@ def testCompress4G(self, size): finally: data = None + # TODO: RUSTPYTHON + @unittest.expectedFailure def testPickle(self): for proto in range(pickle.HIGHEST_PROTOCOL + 1): with self.assertRaises(TypeError): @@ -734,6 +736,8 @@ def testDecompress4G(self, size): compressed = None decompressed = None + # TODO: RUSTPYTHON + @unittest.expectedFailure def testPickle(self): for proto in range(pickle.HIGHEST_PROTOCOL + 1): with self.assertRaises(TypeError): @@ -1001,6 +1005,8 @@ def test_encoding_error_handler(self): as f: self.assertEqual(f.read(), "foobar") + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_newline(self): # Test with explicit newline (universal newline mode disabled). text = self.TEXT.decode("ascii") diff --git a/Lib/test/test_calendar.py b/Lib/test/test_calendar.py index a53766d455..df102fe198 100644 --- a/Lib/test/test_calendar.py +++ b/Lib/test/test_calendar.py @@ -3,12 +3,13 @@ from test import support from test.support.script_helper import assert_python_ok, assert_python_failure -import time -import locale -import sys +import contextlib import datetime +import io +import locale import os -import warnings +import sys +import time # From https://en.wikipedia.org/wiki/Leap_year_starting_on_Saturday result_0_02_text = """\ @@ -456,6 +457,11 @@ def test_formatmonth(self): calendar.TextCalendar().formatmonth(0, 2), result_0_02_text ) + def test_formatmonth_with_invalid_month(self): + with self.assertRaises(calendar.IllegalMonthError): + calendar.TextCalendar().formatmonth(2017, 13) + with self.assertRaises(calendar.IllegalMonthError): + calendar.TextCalendar().formatmonth(2017, -1) def test_formatmonthname_with_year(self): self.assertEqual( @@ -550,26 +556,92 @@ def test_months(self): # verify it "acts like a sequence" in two forms of iteration self.assertEqual(value[::-1], list(reversed(value))) - def test_locale_calendars(self): + def test_locale_text_calendar(self): + try: + cal = calendar.LocaleTextCalendar(locale='') + local_weekday = cal.formatweekday(1, 10) + local_weekday_abbr = cal.formatweekday(1, 3) + local_month = cal.formatmonthname(2010, 10, 10) + except locale.Error: + # cannot set the system default locale -- skip rest of test + raise unittest.SkipTest('cannot set the system default locale') + self.assertIsInstance(local_weekday, str) + self.assertIsInstance(local_weekday_abbr, str) + self.assertIsInstance(local_month, str) + self.assertEqual(len(local_weekday), 10) + self.assertEqual(len(local_weekday_abbr), 3) + self.assertGreaterEqual(len(local_month), 10) + + cal = calendar.LocaleTextCalendar(locale=None) + local_weekday = cal.formatweekday(1, 10) + local_weekday_abbr = cal.formatweekday(1, 3) + local_month = cal.formatmonthname(2010, 10, 10) + self.assertIsInstance(local_weekday, str) + self.assertIsInstance(local_weekday_abbr, str) + self.assertIsInstance(local_month, str) + self.assertEqual(len(local_weekday), 10) + self.assertEqual(len(local_weekday_abbr), 3) + self.assertGreaterEqual(len(local_month), 10) + + cal = calendar.LocaleTextCalendar(locale='C') + local_weekday = cal.formatweekday(1, 10) + local_weekday_abbr = cal.formatweekday(1, 3) + local_month = cal.formatmonthname(2010, 10, 10) + self.assertIsInstance(local_weekday, str) + self.assertIsInstance(local_weekday_abbr, str) + self.assertIsInstance(local_month, str) + self.assertEqual(len(local_weekday), 10) + self.assertEqual(len(local_weekday_abbr), 3) + self.assertGreaterEqual(len(local_month), 10) + + def test_locale_html_calendar(self): + try: + cal = calendar.LocaleHTMLCalendar(locale='') + local_weekday = cal.formatweekday(1) + local_month = cal.formatmonthname(2010, 10) + except locale.Error: + # cannot set the system default locale -- skip rest of test + raise unittest.SkipTest('cannot set the system default locale') + self.assertIsInstance(local_weekday, str) + self.assertIsInstance(local_month, str) + + cal = calendar.LocaleHTMLCalendar(locale=None) + local_weekday = cal.formatweekday(1) + local_month = cal.formatmonthname(2010, 10) + self.assertIsInstance(local_weekday, str) + self.assertIsInstance(local_month, str) + + cal = calendar.LocaleHTMLCalendar(locale='C') + local_weekday = cal.formatweekday(1) + local_month = cal.formatmonthname(2010, 10) + self.assertIsInstance(local_weekday, str) + self.assertIsInstance(local_month, str) + + def test_locale_calendars_reset_locale_properly(self): # ensure that Locale{Text,HTML}Calendar resets the locale properly # (it is still not thread-safe though) old_october = calendar.TextCalendar().formatmonthname(2010, 10, 10) try: cal = calendar.LocaleTextCalendar(locale='') local_weekday = cal.formatweekday(1, 10) + local_weekday_abbr = cal.formatweekday(1, 3) local_month = cal.formatmonthname(2010, 10, 10) except locale.Error: # cannot set the system default locale -- skip rest of test raise unittest.SkipTest('cannot set the system default locale') self.assertIsInstance(local_weekday, str) + self.assertIsInstance(local_weekday_abbr, str) self.assertIsInstance(local_month, str) self.assertEqual(len(local_weekday), 10) + self.assertEqual(len(local_weekday_abbr), 3) self.assertGreaterEqual(len(local_month), 10) + cal = calendar.LocaleHTMLCalendar(locale='') local_weekday = cal.formatweekday(1) local_month = cal.formatmonthname(2010, 10) self.assertIsInstance(local_weekday, str) self.assertIsInstance(local_month, str) + new_october = calendar.TextCalendar().formatmonthname(2010, 10, 10) self.assertEqual(old_october, new_october) @@ -590,6 +662,21 @@ def test_locale_calendar_formatweekday(self): except locale.Error: raise unittest.SkipTest('cannot set the en_US locale') + def test_locale_calendar_formatmonthname(self): + try: + # formatmonthname uses the same month names regardless of the width argument. + cal = calendar.LocaleTextCalendar(locale='en_US') + # For too short widths, a full name (with year) is used. + self.assertEqual(cal.formatmonthname(2022, 6, 2, withyear=False), "June") + self.assertEqual(cal.formatmonthname(2022, 6, 2, withyear=True), "June 2022") + self.assertEqual(cal.formatmonthname(2022, 6, 3, withyear=False), "June") + self.assertEqual(cal.formatmonthname(2022, 6, 3, withyear=True), "June 2022") + # For long widths, a centered name is used. + self.assertEqual(cal.formatmonthname(2022, 6, 10, withyear=False), " June ") + self.assertEqual(cal.formatmonthname(2022, 6, 15, withyear=True), " June 2022 ") + except locale.Error: + raise unittest.SkipTest('cannot set the en_US locale') + def test_locale_html_calendar_custom_css_class_month_name(self): try: cal = calendar.LocaleHTMLCalendar(locale='') @@ -845,51 +932,107 @@ def test_several_leapyears_in_range(self): def conv(s): - # XXX RUSTPYTHON TODO: TextIOWrapper newline translation - return s.encode() - # return s.replace('\n', os.linesep).encode() + return s.replace('\n', os.linesep).encode() class CommandLineTestCase(unittest.TestCase): - def run_ok(self, *args): + def setUp(self): + self.runners = [self.run_cli_ok, self.run_cmd_ok] + + @contextlib.contextmanager + def captured_stdout_with_buffer(self): + orig_stdout = sys.stdout + buffer = io.BytesIO() + sys.stdout = io.TextIOWrapper(buffer) + try: + yield sys.stdout + finally: + sys.stdout.flush() + sys.stdout.buffer.seek(0) + sys.stdout = orig_stdout + + @contextlib.contextmanager + def captured_stderr_with_buffer(self): + orig_stderr = sys.stderr + buffer = io.BytesIO() + sys.stderr = io.TextIOWrapper(buffer) + try: + yield sys.stderr + finally: + sys.stderr.flush() + sys.stderr.buffer.seek(0) + sys.stderr = orig_stderr + + def run_cli_ok(self, *args): + with self.captured_stdout_with_buffer() as stdout: + calendar.main(args) + return stdout.buffer.read() + + def run_cmd_ok(self, *args): return assert_python_ok('-m', 'calendar', *args)[1] - def assertFailure(self, *args): + def assertCLIFails(self, *args): + with self.captured_stderr_with_buffer() as stderr: + self.assertRaises(SystemExit, calendar.main, args) + stderr = stderr.buffer.read() + self.assertIn(b'usage:', stderr) + return stderr + + def assertCmdFails(self, *args): rc, stdout, stderr = assert_python_failure('-m', 'calendar', *args) self.assertIn(b'usage:', stderr) self.assertEqual(rc, 2) + return rc, stdout, stderr + + def assertFailure(self, *args): + self.assertCLIFails(*args) + self.assertCmdFails(*args) def test_help(self): - stdout = self.run_ok('-h') + stdout = self.run_cmd_ok('-h') self.assertIn(b'usage:', stdout) self.assertIn(b'calendar.py', stdout) self.assertIn(b'--help', stdout) + # special case: stdout but sys.exit() + with self.captured_stdout_with_buffer() as output: + self.assertRaises(SystemExit, calendar.main, ['-h']) + output = output.buffer.read() + self.assertIn(b'usage:', output) + self.assertIn(b'--help', output) + def test_illegal_arguments(self): self.assertFailure('-z') self.assertFailure('spam') self.assertFailure('2004', 'spam') + self.assertFailure('2004', '1', 'spam') + self.assertFailure('2004', '1', '1') + self.assertFailure('2004', '1', '1', 'spam') self.assertFailure('-t', 'html', '2004', '1') def test_output_current_year(self): - stdout = self.run_ok() - year = datetime.datetime.now().year - self.assertIn((' %s' % year).encode(), stdout) - self.assertIn(b'January', stdout) - self.assertIn(b'Mo Tu We Th Fr Sa Su', stdout) + for run in self.runners: + output = run() + year = datetime.datetime.now().year + self.assertIn(conv(' %s' % year), output) + self.assertIn(b'January', output) + self.assertIn(b'Mo Tu We Th Fr Sa Su', output) def test_output_year(self): - stdout = self.run_ok('2004') - self.assertEqual(stdout, conv(result_2004_text)) + for run in self.runners: + output = run('2004') + self.assertEqual(output, conv(result_2004_text)) def test_output_month(self): - stdout = self.run_ok('2004', '1') - self.assertEqual(stdout, conv(result_2004_01_text)) + for run in self.runners: + output = run('2004', '1') + self.assertEqual(output, conv(result_2004_01_text)) def test_option_encoding(self): self.assertFailure('-e') self.assertFailure('--encoding') - stdout = self.run_ok('--encoding', 'utf-16-le', '2004') - self.assertEqual(stdout, result_2004_text.encode('utf-16-le')) + for run in self.runners: + output = run('--encoding', 'utf-16-le', '2004') + self.assertEqual(output, result_2004_text.encode('utf-16-le')) def test_option_locale(self): self.assertFailure('-L') @@ -907,66 +1050,75 @@ def test_option_locale(self): locale.setlocale(locale.LC_TIME, oldlocale) except (locale.Error, ValueError): self.skipTest('cannot set the system default locale') - stdout = self.run_ok('--locale', lang, '--encoding', enc, '2004') - self.assertIn('2004'.encode(enc), stdout) + for run in self.runners: + for type in ('text', 'html'): + output = run( + '--type', type, '--locale', lang, '--encoding', enc, '2004' + ) + self.assertIn('2004'.encode(enc), output) def test_option_width(self): self.assertFailure('-w') self.assertFailure('--width') self.assertFailure('-w', 'spam') - stdout = self.run_ok('--width', '3', '2004') - self.assertIn(b'Mon Tue Wed Thu Fri Sat Sun', stdout) + for run in self.runners: + output = run('--width', '3', '2004') + self.assertIn(b'Mon Tue Wed Thu Fri Sat Sun', output) def test_option_lines(self): self.assertFailure('-l') self.assertFailure('--lines') self.assertFailure('-l', 'spam') - stdout = self.run_ok('--lines', '2', '2004') - self.assertIn(conv('December\n\nMo Tu We'), stdout) + for run in self.runners: + output = run('--lines', '2', '2004') + self.assertIn(conv('December\n\nMo Tu We'), output) def test_option_spacing(self): self.assertFailure('-s') self.assertFailure('--spacing') self.assertFailure('-s', 'spam') - stdout = self.run_ok('--spacing', '8', '2004') - self.assertIn(b'Su Mo', stdout) + for run in self.runners: + output = run('--spacing', '8', '2004') + self.assertIn(b'Su Mo', output) def test_option_months(self): self.assertFailure('-m') self.assertFailure('--month') self.assertFailure('-m', 'spam') - stdout = self.run_ok('--months', '1', '2004') - self.assertIn(conv('\nMo Tu We Th Fr Sa Su\n'), stdout) + for run in self.runners: + output = run('--months', '1', '2004') + self.assertIn(conv('\nMo Tu We Th Fr Sa Su\n'), output) def test_option_type(self): self.assertFailure('-t') self.assertFailure('--type') self.assertFailure('-t', 'spam') - stdout = self.run_ok('--type', 'text', '2004') - self.assertEqual(stdout, conv(result_2004_text)) - stdout = self.run_ok('--type', 'html', '2004') - self.assertEqual(stdout[:6], b'Calendar for 2004', stdout) + for run in self.runners: + output = run('--type', 'text', '2004') + self.assertEqual(output, conv(result_2004_text)) + output = run('--type', 'html', '2004') + self.assertEqual(output[:6], b'Calendar for 2004', output) def test_html_output_current_year(self): - stdout = self.run_ok('--type', 'html') - year = datetime.datetime.now().year - self.assertIn(('Calendar for %s' % year).encode(), - stdout) - self.assertIn(b'January', - stdout) + for run in self.runners: + output = run('--type', 'html') + year = datetime.datetime.now().year + self.assertIn(('Calendar for %s' % year).encode(), output) + self.assertIn(b'January', output) def test_html_output_year_encoding(self): - stdout = self.run_ok('-t', 'html', '--encoding', 'ascii', '2004') - self.assertEqual(stdout, - result_2004_html.format(**default_format).encode('ascii')) + for run in self.runners: + output = run('-t', 'html', '--encoding', 'ascii', '2004') + self.assertEqual(output, result_2004_html.format(**default_format).encode('ascii')) def test_html_output_year_css(self): self.assertFailure('-t', 'html', '-c') self.assertFailure('-t', 'html', '--css') - stdout = self.run_ok('-t', 'html', '--css', 'custom.css', '2004') - self.assertIn(b'', stdout) + for run in self.runners: + output = run('-t', 'html', '--css', 'custom.css', '2004') + self.assertIn(b'', output) class MiscTestCase(unittest.TestCase): @@ -974,7 +1126,7 @@ def test__all__(self): not_exported = { 'mdays', 'January', 'February', 'EPOCH', 'different_locale', 'c', 'prweek', 'week', 'format', - 'formatstring', 'main', 'monthlen', 'prevmonth', 'nextmonth'} + 'formatstring', 'main', 'monthlen', 'prevmonth', 'nextmonth', ""} support.check__all__(self, calendar, not_exported=not_exported) @@ -1002,6 +1154,13 @@ def test_formatmonth(self): self.assertIn('class="text-center month"', self.cal.formatmonth(2017, 5)) + def test_formatmonth_with_invalid_month(self): + with self.assertRaises(calendar.IllegalMonthError): + self.cal.formatmonth(2017, 13) + with self.assertRaises(calendar.IllegalMonthError): + self.cal.formatmonth(2017, -1) + + def test_formatweek(self): weeks = self.cal.monthdays2calendar(2017, 5) self.assertIn('class="wed text-nowrap"', self.cal.formatweek(weeks[0])) diff --git a/Lib/test/test_cgi.py b/Lib/test/test_cgi.py deleted file mode 100644 index 43164cff31..0000000000 --- a/Lib/test/test_cgi.py +++ /dev/null @@ -1,645 +0,0 @@ -import os -import sys -import tempfile -import unittest -from collections import namedtuple -from io import StringIO, BytesIO -from test import support -from test.support import warnings_helper - -cgi = warnings_helper.import_deprecated("cgi") - - -class HackedSysModule: - # The regression test will have real values in sys.argv, which - # will completely confuse the test of the cgi module - argv = [] - stdin = sys.stdin - -cgi.sys = HackedSysModule() - -class ComparableException: - def __init__(self, err): - self.err = err - - def __str__(self): - return str(self.err) - - def __eq__(self, anExc): - if not isinstance(anExc, Exception): - return NotImplemented - return (self.err.__class__ == anExc.__class__ and - self.err.args == anExc.args) - - def __getattr__(self, attr): - return getattr(self.err, attr) - -def do_test(buf, method): - env = {} - if method == "GET": - fp = None - env['REQUEST_METHOD'] = 'GET' - env['QUERY_STRING'] = buf - elif method == "POST": - fp = BytesIO(buf.encode('latin-1')) # FieldStorage expects bytes - env['REQUEST_METHOD'] = 'POST' - env['CONTENT_TYPE'] = 'application/x-www-form-urlencoded' - env['CONTENT_LENGTH'] = str(len(buf)) - else: - raise ValueError("unknown method: %s" % method) - try: - return cgi.parse(fp, env, strict_parsing=1) - except Exception as err: - return ComparableException(err) - -parse_strict_test_cases = [ - ("", {}), - ("&", ValueError("bad query field: ''")), - ("&&", ValueError("bad query field: ''")), - # Should the next few really be valid? - ("=", {}), - ("=&=", {}), - # This rest seem to make sense - ("=a", {'': ['a']}), - ("&=a", ValueError("bad query field: ''")), - ("=a&", ValueError("bad query field: ''")), - ("=&a", ValueError("bad query field: 'a'")), - ("b=a", {'b': ['a']}), - ("b+=a", {'b ': ['a']}), - ("a=b=a", {'a': ['b=a']}), - ("a=+b=a", {'a': [' b=a']}), - ("&b=a", ValueError("bad query field: ''")), - ("b&=a", ValueError("bad query field: 'b'")), - ("a=a+b&b=b+c", {'a': ['a b'], 'b': ['b c']}), - ("a=a+b&a=b+a", {'a': ['a b', 'b a']}), - ("x=1&y=2.0&z=2-3.%2b0", {'x': ['1'], 'y': ['2.0'], 'z': ['2-3.+0']}), - ("Hbc5161168c542333633315dee1182227:key_store_seqid=400006&cuyer=r&view=bustomer&order_id=0bb2e248638833d48cb7fed300000f1b&expire=964546263&lobale=en-US&kid=130003.300038&ss=env", - {'Hbc5161168c542333633315dee1182227:key_store_seqid': ['400006'], - 'cuyer': ['r'], - 'expire': ['964546263'], - 'kid': ['130003.300038'], - 'lobale': ['en-US'], - 'order_id': ['0bb2e248638833d48cb7fed300000f1b'], - 'ss': ['env'], - 'view': ['bustomer'], - }), - - ("group_id=5470&set=custom&_assigned_to=31392&_status=1&_category=100&SUBMIT=Browse", - {'SUBMIT': ['Browse'], - '_assigned_to': ['31392'], - '_category': ['100'], - '_status': ['1'], - 'group_id': ['5470'], - 'set': ['custom'], - }) - ] - -def norm(seq): - return sorted(seq, key=repr) - -def first_elts(list): - return [p[0] for p in list] - -def first_second_elts(list): - return [(p[0], p[1][0]) for p in list] - -def gen_result(data, environ): - encoding = 'latin-1' - fake_stdin = BytesIO(data.encode(encoding)) - fake_stdin.seek(0) - form = cgi.FieldStorage(fp=fake_stdin, environ=environ, encoding=encoding) - - result = {} - for k, v in dict(form).items(): - result[k] = isinstance(v, list) and form.getlist(k) or v.value - - return result - -class CgiTests(unittest.TestCase): - - def test_parse_multipart(self): - fp = BytesIO(POSTDATA.encode('latin1')) - env = {'boundary': BOUNDARY.encode('latin1'), - 'CONTENT-LENGTH': '558'} - result = cgi.parse_multipart(fp, env) - expected = {'submit': [' Add '], 'id': ['1234'], - 'file': [b'Testing 123.\n'], 'title': ['']} - self.assertEqual(result, expected) - - def test_parse_multipart_without_content_length(self): - POSTDATA = '''--JfISa01 -Content-Disposition: form-data; name="submit-name" - -just a string - ---JfISa01-- -''' - fp = BytesIO(POSTDATA.encode('latin1')) - env = {'boundary': 'JfISa01'.encode('latin1')} - result = cgi.parse_multipart(fp, env) - expected = {'submit-name': ['just a string\n']} - self.assertEqual(result, expected) - - # TODO RUSTPYTHON - see https://github.com/RustPython/RustPython/issues/935 - @unittest.expectedFailure - def test_parse_multipart_invalid_encoding(self): - BOUNDARY = "JfISa01" - POSTDATA = """--JfISa01 -Content-Disposition: form-data; name="submit-name" -Content-Length: 3 - -\u2603 ---JfISa01""" - fp = BytesIO(POSTDATA.encode('utf8')) - env = {'boundary': BOUNDARY.encode('latin1'), - 'CONTENT-LENGTH': str(len(POSTDATA.encode('utf8')))} - result = cgi.parse_multipart(fp, env, encoding="ascii", - errors="surrogateescape") - expected = {'submit-name': ["\udce2\udc98\udc83"]} - self.assertEqual(result, expected) - self.assertEqual("\u2603".encode('utf8'), - result["submit-name"][0].encode('utf8', 'surrogateescape')) - - def test_fieldstorage_properties(self): - fs = cgi.FieldStorage() - self.assertFalse(fs) - self.assertIn("FieldStorage", repr(fs)) - self.assertEqual(list(fs), list(fs.keys())) - fs.list.append(namedtuple('MockFieldStorage', 'name')('fieldvalue')) - self.assertTrue(fs) - - def test_fieldstorage_invalid(self): - self.assertRaises(TypeError, cgi.FieldStorage, "not-a-file-obj", - environ={"REQUEST_METHOD":"PUT"}) - self.assertRaises(TypeError, cgi.FieldStorage, "foo", "bar") - fs = cgi.FieldStorage(headers={'content-type':'text/plain'}) - self.assertRaises(TypeError, bool, fs) - - # TODO: RUSTPYTHON - @unittest.expectedFailure - def test_strict(self): - for orig, expect in parse_strict_test_cases: - # Test basic parsing - d = do_test(orig, "GET") - self.assertEqual(d, expect, "Error parsing %s method GET" % repr(orig)) - d = do_test(orig, "POST") - self.assertEqual(d, expect, "Error parsing %s method POST" % repr(orig)) - - env = {'QUERY_STRING': orig} - fs = cgi.FieldStorage(environ=env) - if isinstance(expect, dict): - # test dict interface - self.assertEqual(len(expect), len(fs)) - self.assertCountEqual(expect.keys(), fs.keys()) - ##self.assertEqual(norm(expect.values()), norm(fs.values())) - ##self.assertEqual(norm(expect.items()), norm(fs.items())) - self.assertEqual(fs.getvalue("nonexistent field", "default"), "default") - # test individual fields - for key in expect.keys(): - expect_val = expect[key] - self.assertIn(key, fs) - if len(expect_val) > 1: - self.assertEqual(fs.getvalue(key), expect_val) - else: - self.assertEqual(fs.getvalue(key), expect_val[0]) - - def test_separator(self): - parse_semicolon = [ - ("x=1;y=2.0", {'x': ['1'], 'y': ['2.0']}), - ("x=1;y=2.0;z=2-3.%2b0", {'x': ['1'], 'y': ['2.0'], 'z': ['2-3.+0']}), - (";", ValueError("bad query field: ''")), - (";;", ValueError("bad query field: ''")), - ("=;a", ValueError("bad query field: 'a'")), - (";b=a", ValueError("bad query field: ''")), - ("b;=a", ValueError("bad query field: 'b'")), - ("a=a+b;b=b+c", {'a': ['a b'], 'b': ['b c']}), - ("a=a+b;a=b+a", {'a': ['a b', 'b a']}), - ] - for orig, expect in parse_semicolon: - env = {'QUERY_STRING': orig} - fs = cgi.FieldStorage(separator=';', environ=env) - if isinstance(expect, dict): - for key in expect.keys(): - expect_val = expect[key] - self.assertIn(key, fs) - if len(expect_val) > 1: - self.assertEqual(fs.getvalue(key), expect_val) - else: - self.assertEqual(fs.getvalue(key), expect_val[0]) - - @warnings_helper.ignore_warnings(category=DeprecationWarning) - def test_log(self): - cgi.log("Testing") - - cgi.logfp = StringIO() - cgi.initlog("%s", "Testing initlog 1") - cgi.log("%s", "Testing log 2") - self.assertEqual(cgi.logfp.getvalue(), "Testing initlog 1\nTesting log 2\n") - if os.path.exists(os.devnull): - cgi.logfp = None - cgi.logfile = os.devnull - cgi.initlog("%s", "Testing log 3") - self.addCleanup(cgi.closelog) - cgi.log("Testing log 4") - - def test_fieldstorage_readline(self): - # FieldStorage uses readline, which has the capacity to read all - # contents of the input file into memory; we use readline's size argument - # to prevent that for files that do not contain any newlines in - # non-GET/HEAD requests - class TestReadlineFile: - def __init__(self, file): - self.file = file - self.numcalls = 0 - - def readline(self, size=None): - self.numcalls += 1 - if size: - return self.file.readline(size) - else: - return self.file.readline() - - def __getattr__(self, name): - file = self.__dict__['file'] - a = getattr(file, name) - if not isinstance(a, int): - setattr(self, name, a) - return a - - f = TestReadlineFile(tempfile.TemporaryFile("wb+")) - self.addCleanup(f.close) - f.write(b'x' * 256 * 1024) - f.seek(0) - env = {'REQUEST_METHOD':'PUT'} - fs = cgi.FieldStorage(fp=f, environ=env) - self.addCleanup(fs.file.close) - # if we're not chunking properly, readline is only called twice - # (by read_binary); if we are chunking properly, it will be called 5 times - # as long as the chunksize is 1 << 16. - self.assertGreater(f.numcalls, 2) - f.close() - - def test_fieldstorage_multipart(self): - #Test basic FieldStorage multipart parsing - env = { - 'REQUEST_METHOD': 'POST', - 'CONTENT_TYPE': 'multipart/form-data; boundary={}'.format(BOUNDARY), - 'CONTENT_LENGTH': '558'} - fp = BytesIO(POSTDATA.encode('latin-1')) - fs = cgi.FieldStorage(fp, environ=env, encoding="latin-1") - self.assertEqual(len(fs.list), 4) - expect = [{'name':'id', 'filename':None, 'value':'1234'}, - {'name':'title', 'filename':None, 'value':''}, - {'name':'file', 'filename':'test.txt', 'value':b'Testing 123.\n'}, - {'name':'submit', 'filename':None, 'value':' Add '}] - for x in range(len(fs.list)): - for k, exp in expect[x].items(): - got = getattr(fs.list[x], k) - self.assertEqual(got, exp) - - def test_fieldstorage_multipart_leading_whitespace(self): - env = { - 'REQUEST_METHOD': 'POST', - 'CONTENT_TYPE': 'multipart/form-data; boundary={}'.format(BOUNDARY), - 'CONTENT_LENGTH': '560'} - # Add some leading whitespace to our post data that will cause the - # first line to not be the innerboundary. - fp = BytesIO(b"\r\n" + POSTDATA.encode('latin-1')) - fs = cgi.FieldStorage(fp, environ=env, encoding="latin-1") - self.assertEqual(len(fs.list), 4) - expect = [{'name':'id', 'filename':None, 'value':'1234'}, - {'name':'title', 'filename':None, 'value':''}, - {'name':'file', 'filename':'test.txt', 'value':b'Testing 123.\n'}, - {'name':'submit', 'filename':None, 'value':' Add '}] - for x in range(len(fs.list)): - for k, exp in expect[x].items(): - got = getattr(fs.list[x], k) - self.assertEqual(got, exp) - - def test_fieldstorage_multipart_non_ascii(self): - #Test basic FieldStorage multipart parsing - env = {'REQUEST_METHOD':'POST', - 'CONTENT_TYPE': 'multipart/form-data; boundary={}'.format(BOUNDARY), - 'CONTENT_LENGTH':'558'} - for encoding in ['iso-8859-1','utf-8']: - fp = BytesIO(POSTDATA_NON_ASCII.encode(encoding)) - fs = cgi.FieldStorage(fp, environ=env,encoding=encoding) - self.assertEqual(len(fs.list), 1) - expect = [{'name':'id', 'filename':None, 'value':'\xe7\xf1\x80'}] - for x in range(len(fs.list)): - for k, exp in expect[x].items(): - got = getattr(fs.list[x], k) - self.assertEqual(got, exp) - - def test_fieldstorage_multipart_maxline(self): - # Issue #18167 - maxline = 1 << 16 - self.maxDiff = None - def check(content): - data = """---123 -Content-Disposition: form-data; name="upload"; filename="fake.txt" -Content-Type: text/plain - -%s ----123-- -""".replace('\n', '\r\n') % content - environ = { - 'CONTENT_LENGTH': str(len(data)), - 'CONTENT_TYPE': 'multipart/form-data; boundary=-123', - 'REQUEST_METHOD': 'POST', - } - self.assertEqual(gen_result(data, environ), - {'upload': content.encode('latin1')}) - check('x' * (maxline - 1)) - check('x' * (maxline - 1) + '\r') - check('x' * (maxline - 1) + '\r' + 'y' * (maxline - 1)) - - def test_fieldstorage_multipart_w3c(self): - # Test basic FieldStorage multipart parsing (W3C sample) - env = { - 'REQUEST_METHOD': 'POST', - 'CONTENT_TYPE': 'multipart/form-data; boundary={}'.format(BOUNDARY_W3), - 'CONTENT_LENGTH': str(len(POSTDATA_W3))} - fp = BytesIO(POSTDATA_W3.encode('latin-1')) - fs = cgi.FieldStorage(fp, environ=env, encoding="latin-1") - self.assertEqual(len(fs.list), 2) - self.assertEqual(fs.list[0].name, 'submit-name') - self.assertEqual(fs.list[0].value, 'Larry') - self.assertEqual(fs.list[1].name, 'files') - files = fs.list[1].value - self.assertEqual(len(files), 2) - expect = [{'name': None, 'filename': 'file1.txt', 'value': b'... contents of file1.txt ...'}, - {'name': None, 'filename': 'file2.gif', 'value': b'...contents of file2.gif...'}] - for x in range(len(files)): - for k, exp in expect[x].items(): - got = getattr(files[x], k) - self.assertEqual(got, exp) - - def test_fieldstorage_part_content_length(self): - BOUNDARY = "JfISa01" - POSTDATA = """--JfISa01 -Content-Disposition: form-data; name="submit-name" -Content-Length: 5 - -Larry ---JfISa01""" - env = { - 'REQUEST_METHOD': 'POST', - 'CONTENT_TYPE': 'multipart/form-data; boundary={}'.format(BOUNDARY), - 'CONTENT_LENGTH': str(len(POSTDATA))} - fp = BytesIO(POSTDATA.encode('latin-1')) - fs = cgi.FieldStorage(fp, environ=env, encoding="latin-1") - self.assertEqual(len(fs.list), 1) - self.assertEqual(fs.list[0].name, 'submit-name') - self.assertEqual(fs.list[0].value, 'Larry') - - def test_field_storage_multipart_no_content_length(self): - fp = BytesIO(b"""--MyBoundary -Content-Disposition: form-data; name="my-arg"; filename="foo" - -Test - ---MyBoundary-- -""") - env = { - "REQUEST_METHOD": "POST", - "CONTENT_TYPE": "multipart/form-data; boundary=MyBoundary", - "wsgi.input": fp, - } - fields = cgi.FieldStorage(fp, environ=env) - - self.assertEqual(len(fields["my-arg"].file.read()), 5) - - def test_fieldstorage_as_context_manager(self): - fp = BytesIO(b'x' * 10) - env = {'REQUEST_METHOD': 'PUT'} - with cgi.FieldStorage(fp=fp, environ=env) as fs: - content = fs.file.read() - self.assertFalse(fs.file.closed) - self.assertTrue(fs.file.closed) - self.assertEqual(content, 'x' * 10) - with self.assertRaisesRegex(ValueError, 'I/O operation on closed file'): - fs.file.read() - - _qs_result = { - 'key1': 'value1', - 'key2': ['value2x', 'value2y'], - 'key3': 'value3', - 'key4': 'value4' - } - def testQSAndUrlEncode(self): - data = "key2=value2x&key3=value3&key4=value4" - environ = { - 'CONTENT_LENGTH': str(len(data)), - 'CONTENT_TYPE': 'application/x-www-form-urlencoded', - 'QUERY_STRING': 'key1=value1&key2=value2y', - 'REQUEST_METHOD': 'POST', - } - v = gen_result(data, environ) - self.assertEqual(self._qs_result, v) - - def test_max_num_fields(self): - # For application/x-www-form-urlencoded - data = '&'.join(['a=a']*11) - environ = { - 'CONTENT_LENGTH': str(len(data)), - 'CONTENT_TYPE': 'application/x-www-form-urlencoded', - 'REQUEST_METHOD': 'POST', - } - - with self.assertRaises(ValueError): - cgi.FieldStorage( - fp=BytesIO(data.encode()), - environ=environ, - max_num_fields=10, - ) - - # For multipart/form-data - data = """---123 -Content-Disposition: form-data; name="a" - -3 ----123 -Content-Type: application/x-www-form-urlencoded - -a=4 ----123 -Content-Type: application/x-www-form-urlencoded - -a=5 ----123-- -""" - environ = { - 'CONTENT_LENGTH': str(len(data)), - 'CONTENT_TYPE': 'multipart/form-data; boundary=-123', - 'QUERY_STRING': 'a=1&a=2', - 'REQUEST_METHOD': 'POST', - } - - # 2 GET entities - # 1 top level POST entities - # 1 entity within the second POST entity - # 1 entity within the third POST entity - with self.assertRaises(ValueError): - cgi.FieldStorage( - fp=BytesIO(data.encode()), - environ=environ, - max_num_fields=4, - ) - cgi.FieldStorage( - fp=BytesIO(data.encode()), - environ=environ, - max_num_fields=5, - ) - - def testQSAndFormData(self): - data = """---123 -Content-Disposition: form-data; name="key2" - -value2y ----123 -Content-Disposition: form-data; name="key3" - -value3 ----123 -Content-Disposition: form-data; name="key4" - -value4 ----123-- -""" - environ = { - 'CONTENT_LENGTH': str(len(data)), - 'CONTENT_TYPE': 'multipart/form-data; boundary=-123', - 'QUERY_STRING': 'key1=value1&key2=value2x', - 'REQUEST_METHOD': 'POST', - } - v = gen_result(data, environ) - self.assertEqual(self._qs_result, v) - - def testQSAndFormDataFile(self): - data = """---123 -Content-Disposition: form-data; name="key2" - -value2y ----123 -Content-Disposition: form-data; name="key3" - -value3 ----123 -Content-Disposition: form-data; name="key4" - -value4 ----123 -Content-Disposition: form-data; name="upload"; filename="fake.txt" -Content-Type: text/plain - -this is the content of the fake file - ----123-- -""" - environ = { - 'CONTENT_LENGTH': str(len(data)), - 'CONTENT_TYPE': 'multipart/form-data; boundary=-123', - 'QUERY_STRING': 'key1=value1&key2=value2x', - 'REQUEST_METHOD': 'POST', - } - result = self._qs_result.copy() - result.update({ - 'upload': b'this is the content of the fake file\n' - }) - v = gen_result(data, environ) - self.assertEqual(result, v) - - def test_parse_header(self): - self.assertEqual( - cgi.parse_header("text/plain"), - ("text/plain", {})) - self.assertEqual( - cgi.parse_header("text/vnd.just.made.this.up ; "), - ("text/vnd.just.made.this.up", {})) - self.assertEqual( - cgi.parse_header("text/plain;charset=us-ascii"), - ("text/plain", {"charset": "us-ascii"})) - self.assertEqual( - cgi.parse_header('text/plain ; charset="us-ascii"'), - ("text/plain", {"charset": "us-ascii"})) - self.assertEqual( - cgi.parse_header('text/plain ; charset="us-ascii"; another=opt'), - ("text/plain", {"charset": "us-ascii", "another": "opt"})) - self.assertEqual( - cgi.parse_header('attachment; filename="silly.txt"'), - ("attachment", {"filename": "silly.txt"})) - self.assertEqual( - cgi.parse_header('attachment; filename="strange;name"'), - ("attachment", {"filename": "strange;name"})) - self.assertEqual( - cgi.parse_header('attachment; filename="strange;name";size=123;'), - ("attachment", {"filename": "strange;name", "size": "123"})) - self.assertEqual( - cgi.parse_header('form-data; name="files"; filename="fo\\"o;bar"'), - ("form-data", {"name": "files", "filename": 'fo"o;bar'})) - - def test_all(self): - not_exported = { - "logfile", "logfp", "initlog", "dolog", "nolog", "closelog", "log", - "maxlen", "valid_boundary"} - support.check__all__(self, cgi, not_exported=not_exported) - - -BOUNDARY = "---------------------------721837373350705526688164684" - -POSTDATA = """-----------------------------721837373350705526688164684 -Content-Disposition: form-data; name="id" - -1234 ------------------------------721837373350705526688164684 -Content-Disposition: form-data; name="title" - - ------------------------------721837373350705526688164684 -Content-Disposition: form-data; name="file"; filename="test.txt" -Content-Type: text/plain - -Testing 123. - ------------------------------721837373350705526688164684 -Content-Disposition: form-data; name="submit" - - Add\x20 ------------------------------721837373350705526688164684-- -""" - -POSTDATA_NON_ASCII = """-----------------------------721837373350705526688164684 -Content-Disposition: form-data; name="id" - -\xe7\xf1\x80 ------------------------------721837373350705526688164684 -""" - -# http://www.w3.org/TR/html401/interact/forms.html#h-17.13.4 -BOUNDARY_W3 = "AaB03x" -POSTDATA_W3 = """--AaB03x -Content-Disposition: form-data; name="submit-name" - -Larry ---AaB03x -Content-Disposition: form-data; name="files" -Content-Type: multipart/mixed; boundary=BbC04y - ---BbC04y -Content-Disposition: file; filename="file1.txt" -Content-Type: text/plain - -... contents of file1.txt ... ---BbC04y -Content-Disposition: file; filename="file2.gif" -Content-Type: image/gif -Content-Transfer-Encoding: binary - -...contents of file2.gif... ---BbC04y-- ---AaB03x-- -""" - -if __name__ == '__main__': - unittest.main() diff --git a/Lib/test/test_cgitb.py b/Lib/test/test_cgitb.py deleted file mode 100644 index 501c7fcce2..0000000000 --- a/Lib/test/test_cgitb.py +++ /dev/null @@ -1,71 +0,0 @@ -from test.support.os_helper import temp_dir -from test.support.script_helper import assert_python_failure -from test.support.warnings_helper import import_deprecated -import unittest -import sys -cgitb = import_deprecated("cgitb") - -class TestCgitb(unittest.TestCase): - - def test_fonts(self): - text = "Hello Robbie!" - self.assertEqual(cgitb.small(text), "{}".format(text)) - self.assertEqual(cgitb.strong(text), "{}".format(text)) - self.assertEqual(cgitb.grey(text), - '{}'.format(text)) - - def test_blanks(self): - self.assertEqual(cgitb.small(""), "") - self.assertEqual(cgitb.strong(""), "") - self.assertEqual(cgitb.grey(""), "") - - def test_html(self): - try: - raise ValueError("Hello World") - except ValueError as err: - # If the html was templated we could do a bit more here. - # At least check that we get details on what we just raised. - html = cgitb.html(sys.exc_info()) - self.assertIn("ValueError", html) - self.assertIn(str(err), html) - - def test_text(self): - try: - raise ValueError("Hello World") - except ValueError: - text = cgitb.text(sys.exc_info()) - self.assertIn("ValueError", text) - self.assertIn("Hello World", text) - - def test_syshook_no_logdir_default_format(self): - with temp_dir() as tracedir: - rc, out, err = assert_python_failure( - '-c', - ('import cgitb; cgitb.enable(logdir=%s); ' - 'raise ValueError("Hello World")') % repr(tracedir), - PYTHONIOENCODING='utf-8') - out = out.decode() - self.assertIn("ValueError", out) - self.assertIn("Hello World", out) - self.assertIn("<module>", out) - # By default we emit HTML markup. - self.assertIn('

', out) - self.assertIn('

', out) - - def test_syshook_no_logdir_text_format(self): - # Issue 12890: we were emitting the

tag in text mode. - with temp_dir() as tracedir: - rc, out, err = assert_python_failure( - '-c', - ('import cgitb; cgitb.enable(format="text", logdir=%s); ' - 'raise ValueError("Hello World")') % repr(tracedir), - PYTHONIOENCODING='utf-8') - out = out.decode() - self.assertIn("ValueError", out) - self.assertIn("Hello World", out) - self.assertNotIn('

', out) - self.assertNotIn('

', out) - - -if __name__ == "__main__": - unittest.main() diff --git a/Lib/test/test_charmapcodec.py b/Lib/test/test_charmapcodec.py index e69f1c6e4b..0d4594d8c0 100644 --- a/Lib/test/test_charmapcodec.py +++ b/Lib/test/test_charmapcodec.py @@ -26,7 +26,6 @@ def codec_search_function(encoding): codecname = 'testcodec' class CharmapCodecTest(unittest.TestCase): - @unittest.expectedFailureIfWindows("TODO: RUSTPYTHON") def test_constructorx(self): self.assertEqual(str(b'abc', codecname), 'abc') self.assertEqual(str(b'xdef', codecname), 'abcdef') @@ -34,8 +33,6 @@ def test_constructorx(self): self.assertEqual(str(b'dxf', codecname), 'dabcf') self.assertEqual(str(b'dxfx', codecname), 'dabcfabc') - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_encodex(self): self.assertEqual('abc'.encode(codecname), b'abc') self.assertEqual('xdef'.encode(codecname), b'abcdef') @@ -43,14 +40,12 @@ def test_encodex(self): self.assertEqual('dxf'.encode(codecname), b'dabcf') self.assertEqual('dxfx'.encode(codecname), b'dabcfabc') - @unittest.expectedFailureIfWindows("TODO: RUSTPYTHON") def test_constructory(self): self.assertEqual(str(b'ydef', codecname), 'def') self.assertEqual(str(b'defy', codecname), 'def') self.assertEqual(str(b'dyf', codecname), 'df') self.assertEqual(str(b'dyfy', codecname), 'df') - @unittest.expectedFailureIfWindows("TODO: RUSTPYTHON") def test_maptoundefined(self): self.assertRaises(UnicodeError, str, b'abc\001', codecname) diff --git a/Lib/test/test_class.py b/Lib/test/test_class.py index 1bb761238b..29215f0600 100644 --- a/Lib/test/test_class.py +++ b/Lib/test/test_class.py @@ -1,7 +1,7 @@ "Test the functionality of Python classes implementing operators." import unittest - +from test.support import cpython_only, import_helper, script_helper testmeths = [ @@ -448,15 +448,15 @@ def __delattr__(self, *args): def testHasAttrString(self): import sys from test.support import import_helper - _testcapi = import_helper.import_module('_testcapi') + _testlimitedcapi = import_helper.import_module('_testlimitedcapi') class A: def __init__(self): self.attr = 1 a = A() - self.assertEqual(_testcapi.object_hasattrstring(a, b"attr"), 1) - self.assertEqual(_testcapi.object_hasattrstring(a, b"noattr"), 0) + self.assertEqual(_testlimitedcapi.object_hasattrstring(a, b"attr"), 1) + self.assertEqual(_testlimitedcapi.object_hasattrstring(a, b"noattr"), 0) self.assertIsNone(sys.exception()) def testDel(self): @@ -503,6 +503,56 @@ def __eq__(self, other): return 1 self.assertRaises(TypeError, hash, C2()) + def testPredefinedAttrs(self): + o = object() + + class Custom: + pass + + c = Custom() + + methods = ( + '__class__', '__delattr__', '__dir__', '__eq__', '__format__', + '__ge__', '__getattribute__', '__getstate__', '__gt__', '__hash__', + '__init__', '__init_subclass__', '__le__', '__lt__', '__ne__', + '__new__', '__reduce__', '__reduce_ex__', '__repr__', + '__setattr__', '__sizeof__', '__str__', '__subclasshook__' + ) + for name in methods: + with self.subTest(name): + self.assertTrue(callable(getattr(object, name, None))) + self.assertTrue(callable(getattr(o, name, None))) + self.assertTrue(callable(getattr(Custom, name, None))) + self.assertTrue(callable(getattr(c, name, None))) + + not_defined = [ + '__abs__', '__aenter__', '__aexit__', '__aiter__', '__anext__', + '__await__', '__bool__', '__bytes__', '__ceil__', + '__complex__', '__contains__', '__del__', '__delete__', + '__delitem__', '__divmod__', '__enter__', '__exit__', + '__float__', '__floor__', '__get__', '__getattr__', '__getitem__', + '__index__', '__int__', '__invert__', '__iter__', '__len__', + '__length_hint__', '__missing__', '__neg__', '__next__', + '__objclass__', '__pos__', '__rdivmod__', '__reversed__', + '__round__', '__set__', '__setitem__', '__trunc__' + ] + augment = ( + 'add', 'and', 'floordiv', 'lshift', 'matmul', 'mod', 'mul', 'pow', + 'rshift', 'sub', 'truediv', 'xor' + ) + not_defined.extend(map("__{}__".format, augment)) + not_defined.extend(map("__r{}__".format, augment)) + not_defined.extend(map("__i{}__".format, augment)) + for name in not_defined: + with self.subTest(name): + self.assertFalse(hasattr(object, name)) + self.assertFalse(hasattr(o, name)) + self.assertFalse(hasattr(Custom, name)) + self.assertFalse(hasattr(c, name)) + + # __call__() is defined on the metaclass but not the class + self.assertFalse(hasattr(o, "__call__")) + self.assertFalse(hasattr(c, "__call__")) @unittest.skip("TODO: RUSTPYTHON, segmentation fault") def testSFBug532646(self): @@ -647,6 +697,14 @@ class A: class B: y = 0 __slots__ = ('z',) + class C: + __slots__ = ("y",) + + def __setattr__(self, name, value) -> None: + if name == "z": + super().__setattr__("y", 1) + else: + super().__setattr__(name, value) error_msg = "'A' object has no attribute 'x'" with self.assertRaisesRegex(AttributeError, error_msg): @@ -659,8 +717,16 @@ class B: B().x with self.assertRaisesRegex(AttributeError, error_msg): del B().x - with self.assertRaisesRegex(AttributeError, error_msg): + with self.assertRaisesRegex( + AttributeError, + "'B' object has no attribute 'x' and no __dict__ for setting new attributes" + ): B().x = 0 + with self.assertRaisesRegex( + AttributeError, + "'C' object has no attribute 'x'" + ): + C().x = 0 error_msg = "'B' object attribute 'y' is read-only" with self.assertRaisesRegex(AttributeError, error_msg): @@ -748,6 +814,221 @@ class A(0, 1, 2, 3, 4, 5, 6, 7, **d): pass class A(0, *range(1, 8), **d, foo='bar'): pass self.assertEqual(A, (tuple(range(8)), {'foo': 'bar'})) + def testClassCallRecursionLimit(self): + class C: + def __init__(self): + self.c = C() + + with self.assertRaises(RecursionError): + C() + + def add_one_level(): + #Each call to C() consumes 2 levels, so offset by 1. + C() + + with self.assertRaises(RecursionError): + add_one_level() + + def testMetaclassCallOptimization(self): + calls = 0 + + class TypeMetaclass(type): + def __call__(cls, *args, **kwargs): + nonlocal calls + calls += 1 + return type.__call__(cls, *args, **kwargs) + + class Type(metaclass=TypeMetaclass): + def __init__(self, obj): + self._obj = obj + + for i in range(100): + Type(i) + self.assertEqual(calls, 100) + +try: + from _testinternalcapi import has_inline_values +except ImportError: + has_inline_values = None + +Py_TPFLAGS_MANAGED_DICT = (1 << 2) + +class Plain: + pass + + +class WithAttrs: + + def __init__(self): + self.a = 1 + self.b = 2 + self.c = 3 + self.d = 4 + + +class TestInlineValues(unittest.TestCase): + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_flags(self): + self.assertEqual(Plain.__flags__ & Py_TPFLAGS_MANAGED_DICT, Py_TPFLAGS_MANAGED_DICT) + self.assertEqual(WithAttrs.__flags__ & Py_TPFLAGS_MANAGED_DICT, Py_TPFLAGS_MANAGED_DICT) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_has_inline_values(self): + c = Plain() + self.assertTrue(has_inline_values(c)) + del c.__dict__ + self.assertFalse(has_inline_values(c)) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_instances(self): + self.assertTrue(has_inline_values(Plain())) + self.assertTrue(has_inline_values(WithAttrs())) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_inspect_dict(self): + for cls in (Plain, WithAttrs): + c = cls() + c.__dict__ + self.assertTrue(has_inline_values(c)) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_update_dict(self): + d = { "e": 5, "f": 6 } + for cls in (Plain, WithAttrs): + c = cls() + c.__dict__.update(d) + self.assertTrue(has_inline_values(c)) + + @staticmethod + def set_100(obj): + for i in range(100): + setattr(obj, f"a{i}", i) + + def check_100(self, obj): + for i in range(100): + self.assertEqual(getattr(obj, f"a{i}"), i) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_many_attributes(self): + class C: pass + c = C() + self.assertTrue(has_inline_values(c)) + self.set_100(c) + self.assertFalse(has_inline_values(c)) + self.check_100(c) + c = C() + self.assertTrue(has_inline_values(c)) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_many_attributes_with_dict(self): + class C: pass + c = C() + d = c.__dict__ + self.assertTrue(has_inline_values(c)) + self.set_100(c) + self.assertFalse(has_inline_values(c)) + self.check_100(c) + + def test_bug_117750(self): + "Aborted on 3.13a6" + class C: + def __init__(self): + self.__dict__.clear() + + obj = C() + self.assertEqual(obj.__dict__, {}) + obj.foo = None # Aborted here + self.assertEqual(obj.__dict__, {"foo":None}) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_store_attr_deleted_dict(self): + class Foo: + pass + + f = Foo() + del f.__dict__ + f.a = 3 + self.assertEqual(f.a, 3) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_rematerialize_object_dict(self): + # gh-121860: rematerializing an object's managed dictionary after it + # had been deleted caused a crash. + class Foo: pass + f = Foo() + f.__dict__["attr"] = 1 + del f.__dict__ + + # Using a str subclass is a way to trigger the re-materialization + class StrSubclass(str): pass + self.assertFalse(hasattr(f, StrSubclass("attr"))) + + # Changing the __class__ also triggers the re-materialization + class Bar: pass + f.__class__ = Bar + self.assertIsInstance(f, Bar) + self.assertEqual(f.__dict__, {}) + + @unittest.skip("TODO: RUSTPYTHON, unexpectedly long runtime") + def test_store_attr_type_cache(self): + """Verifies that the type cache doesn't provide a value which is + inconsistent from the dict.""" + class X: + def __del__(inner_self): + v = C.a + self.assertEqual(v, C.__dict__['a']) + + class C: + a = X() + + # prime the cache + C.a + C.a + + # destructor shouldn't be able to see inconsistent state + C.a = X() + C.a = X() + + @cpython_only + def test_detach_materialized_dict_no_memory(self): + # Skip test if _testcapi is not available: + import_helper.import_module('_testcapi') + + code = """if 1: + import test.support + import _testcapi + + class A: + def __init__(self): + self.a = 1 + self.b = 2 + a = A() + d = a.__dict__ + with test.support.catch_unraisable_exception() as ex: + _testcapi.set_nomemory(0, 1) + del a + assert ex.unraisable.exc_type is MemoryError + try: + d["a"] + except KeyError: + pass + else: + assert False, "KeyError not raised" + """ + rc, out, err = script_helper.assert_python_ok("-c", code) + self.assertEqual(rc, 0) + self.assertFalse(out, msg=out.decode('utf-8')) + self.assertFalse(err, msg=err.decode('utf-8')) if __name__ == '__main__': unittest.main() diff --git a/Lib/test/test_cmd_line.py b/Lib/test/test_cmd_line.py index bda1f78223..da53f085a5 100644 --- a/Lib/test/test_cmd_line.py +++ b/Lib/test/test_cmd_line.py @@ -38,8 +38,6 @@ def verify_valid_flag(self, cmd_line): self.assertNotIn(b'Traceback', err) return out - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_help(self): self.verify_valid_flag('-h') self.verify_valid_flag('-?') @@ -82,8 +80,6 @@ def test_optimize(self): def test_site_flag(self): self.verify_valid_flag('-S') - # NOTE: RUSTPYTHON version never starts with Python - @unittest.expectedFailure def test_version(self): version = ('Python %d.%d' % sys.version_info[:2]).encode("ascii") for switch in '-V', '--version', '-VV': @@ -177,8 +173,6 @@ def test_run_module(self): # All good if module is located and run successfully assert_python_ok('-m', 'timeit', '-n', '1') - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_run_module_bug1764407(self): # -m and -i need to play well together # Runs the timeit module and checks the __main__ @@ -335,8 +329,6 @@ def test_osx_android_utf8(self): self.assertEqual(stdout, expected) self.assertEqual(p.returncode, 0) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_non_interactive_output_buffering(self): code = textwrap.dedent(""" import sys @@ -352,8 +344,6 @@ def test_non_interactive_output_buffering(self): 'False False False\n' 'False False True\n') - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_unbuffered_output(self): # Test expected operation of the '-u' switch for stream in ('stdout', 'stderr'): @@ -447,8 +437,6 @@ def check_input(self, code, expected): stdout, stderr = proc.communicate() self.assertEqual(stdout.rstrip(), expected) - # TODO: RUSTPYTHON - @unittest.skipIf(sys.platform.startswith('win'), "TODO: RUSTPYTHON windows has \n troubles") def test_stdin_readline(self): # Issue #11272: check that sys.stdin.readline() replaces '\r\n' by '\n' # on Windows (sys.stdin is opened in binary mode) @@ -456,16 +444,12 @@ def test_stdin_readline(self): "import sys; print(repr(sys.stdin.readline()))", b"'abc\\n'") - # TODO: RUSTPYTHON - @unittest.skipIf(sys.platform.startswith('win'), "TODO: RUSTPYTHON windows has \n troubles") def test_builtin_input(self): # Issue #11272: check that input() strips newlines ('\n' or '\r\n') self.check_input( "print(repr(input()))", b"'abc'") - # TODO: RUSTPYTHON - @unittest.skipIf(sys.platform.startswith('win'), "TODO: RUSTPYTHON windows has \n troubles") def test_output_newline(self): # Issue 13119 Newline for print() should be \r\n on Windows. code = """if 1: @@ -562,8 +546,6 @@ def test_no_stderr(self): def test_no_std_streams(self): self._test_no_stdio(['stdin', 'stdout', 'stderr']) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_hash_randomization(self): # Verify that -R enables hash randomization: self.verify_valid_flag('-R') @@ -632,8 +614,6 @@ def test_unknown_options(self): self.assertEqual(err.splitlines().count(b'Unknown option: -a'), 1) self.assertEqual(b'', out) - # TODO: RUSTPYTHON - @unittest.expectedFailure @unittest.skipIf(interpreter_requires_environment(), 'Cannot run -I tests when PYTHON env vars are required.') def test_isolatedmode(self): @@ -662,8 +642,6 @@ def test_isolatedmode(self): cwd=tmpdir) self.assertEqual(out.strip(), b"ok") - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_sys_flags_set(self): # Issue 31845: a startup refactoring broke reading flags from env vars for value, expected in (("", 0), ("1", 1), ("text", 1), ("2", 2)): @@ -982,8 +960,6 @@ def test_ignore_PYTHONPATH(self): self.run_ignoring_vars("'{}' not in sys.path".format(path), PYTHONPATH=path) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_ignore_PYTHONHASHSEED(self): self.run_ignoring_vars("sys.flags.hash_randomization == 1", PYTHONHASHSEED="0") diff --git a/Lib/test/test_cmd_line_script.py b/Lib/test/test_cmd_line_script.py index e40069d780..833dc6b15d 100644 --- a/Lib/test/test_cmd_line_script.py +++ b/Lib/test/test_cmd_line_script.py @@ -574,6 +574,7 @@ def test_pep_409_verbiage(self): self.assertTrue(text[1].startswith(' File ')) self.assertTrue(text[3].startswith('NameError')) + @unittest.expectedFailureIf(sys.platform == "linux", "TODO: RUSTPYTHON") def test_non_ascii(self): # Mac OS X denies the creation of a file with an invalid UTF-8 name. # Windows allows creating a name with an arbitrary bytes name, but diff --git a/Lib/test/test_codeccallbacks.py b/Lib/test/test_codeccallbacks.py index 293b75a866..bd1dbcd626 100644 --- a/Lib/test/test_codeccallbacks.py +++ b/Lib/test/test_codeccallbacks.py @@ -203,8 +203,6 @@ def relaxedutf8(exc): self.assertRaises(UnicodeDecodeError, sin.decode, "utf-8", "test.relaxedutf8") - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_charmapencode(self): # For charmap encodings the replacement string will be # mapped through the encoding again. This means, that @@ -329,8 +327,6 @@ def check_exceptionobjectargs(self, exctype, args, msg): exc = exctype(*args) self.assertEqual(str(exc), msg) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_unicodeencodeerror(self): self.check_exceptionobjectargs( UnicodeEncodeError, @@ -363,8 +359,6 @@ def test_unicodeencodeerror(self): "'ascii' codec can't encode character '\\U00010000' in position 0: ouch" ) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_unicodedecodeerror(self): self.check_exceptionobjectargs( UnicodeDecodeError, @@ -377,8 +371,6 @@ def test_unicodedecodeerror(self): "'ascii' codec can't decode bytes in position 1-2: ouch" ) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_unicodetranslateerror(self): self.check_exceptionobjectargs( UnicodeTranslateError, @@ -467,8 +459,6 @@ def test_badandgoodignoreexceptions(self): ("", 2) ) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_badandgoodreplaceexceptions(self): # "replace" complains about a non-exception passed in self.assertRaises( @@ -509,8 +499,6 @@ def test_badandgoodreplaceexceptions(self): ("\ufffd", 2) ) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_badandgoodxmlcharrefreplaceexceptions(self): # "xmlcharrefreplace" complains about a non-exception passed in self.assertRaises( @@ -548,8 +536,6 @@ def test_badandgoodxmlcharrefreplaceexceptions(self): ("".join("&#%d;" % c for c in cs), 1 + len(s)) ) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_badandgoodbackslashreplaceexceptions(self): # "backslashreplace" complains about a non-exception passed in self.assertRaises( @@ -608,8 +594,6 @@ def test_badandgoodbackslashreplaceexceptions(self): (r, 2) ) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_badandgoodnamereplaceexceptions(self): # "namereplace" complains about a non-exception passed in self.assertRaises( @@ -656,8 +640,6 @@ def test_badandgoodnamereplaceexceptions(self): (r, 1 + len(s)) ) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_badandgoodsurrogateescapeexceptions(self): surrogateescape_errors = codecs.lookup_error('surrogateescape') # "surrogateescape" complains about a non-exception passed in @@ -1017,8 +999,6 @@ def __getitem__(self, key): self.assertRaises(ValueError, codecs.charmap_decode, b"\xff", "strict", D()) self.assertRaises(TypeError, codecs.charmap_decode, b"\xff", "strict", {0xff: sys.maxunicode+1}) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_encodehelper(self): # enhance coverage of: # Objects/unicodeobject.c::unicode_encode_call_errorhandler() diff --git a/Lib/test/test_codecs.py b/Lib/test/test_codecs.py index 085b800b6d..a12e5893dc 100644 --- a/Lib/test/test_codecs.py +++ b/Lib/test/test_codecs.py @@ -869,6 +869,11 @@ def test_bug691291(self): with reader: self.assertEqual(reader.read(), s1) + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_incremental_surrogatepass(self): + super().test_incremental_surrogatepass() + class UTF16LETest(ReadTest, unittest.TestCase): encoding = "utf-16-le" ill_formed_sequence = b"\x80\xdc" @@ -917,6 +922,11 @@ def test_nonbmp(self): self.assertEqual(b'\x00\xd8\x03\xde'.decode(self.encoding), "\U00010203") + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_incremental_surrogatepass(self): + super().test_incremental_surrogatepass() + class UTF16BETest(ReadTest, unittest.TestCase): encoding = "utf-16-be" ill_formed_sequence = b"\xdc\x80" @@ -965,6 +975,11 @@ def test_nonbmp(self): self.assertEqual(b'\xd8\x00\xde\x03'.decode(self.encoding), "\U00010203") + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_incremental_surrogatepass(self): + super().test_incremental_surrogatepass() + class UTF8Test(ReadTest, unittest.TestCase): encoding = "utf-8" ill_formed_sequence = b"\xed\xb2\x80" @@ -998,8 +1013,6 @@ def test_decoder_state(self): self.check_state_handling_decode(self.encoding, u, u.encode(self.encoding)) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_decode_error(self): for data, error_handler, expected in ( (b'[\x80\xff]', 'ignore', '[]'), @@ -1026,8 +1039,6 @@ def test_lone_surrogates(self): exc = cm.exception self.assertEqual(exc.object[exc.start:exc.end], '\uD800\uDFFF') - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_surrogatepass_handler(self): self.assertEqual("abc\ud800def".encode(self.encoding, "surrogatepass"), self.BOM + b"abc\xed\xa0\x80def") @@ -1698,8 +1709,6 @@ def test_decode_invalid(self): class NameprepTest(unittest.TestCase): - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_nameprep(self): from encodings.idna import nameprep for pos, (orig, prepped) in enumerate(nameprep_tests): @@ -1827,7 +1836,6 @@ def test_decode(self): self.assertEqual(codecs.decode(b'[\xff]', 'ascii', errors='ignore'), '[]') - @unittest.expectedFailureIfWindows("TODO: RUSTPYTHON") def test_encode(self): self.assertEqual(codecs.encode('\xe4\xf6\xfc', 'latin-1'), b'\xe4\xf6\xfc') @@ -1846,7 +1854,6 @@ def test_register(self): self.assertRaises(TypeError, codecs.register) self.assertRaises(TypeError, codecs.register, 42) - @unittest.expectedFailureIfWindows("TODO: RUSTPYTHON; AttributeError: module '_winapi' has no attribute 'GetACP'") def test_unregister(self): name = "nonexistent_codec_name" search_function = mock.Mock() @@ -1859,28 +1866,23 @@ def test_unregister(self): self.assertRaises(LookupError, codecs.lookup, name) search_function.assert_not_called() - @unittest.expectedFailureIfWindows("TODO: RUSTPYTHON") def test_lookup(self): self.assertRaises(TypeError, codecs.lookup) self.assertRaises(LookupError, codecs.lookup, "__spam__") self.assertRaises(LookupError, codecs.lookup, " ") - @unittest.expectedFailureIfWindows("TODO: RUSTPYTHON") def test_getencoder(self): self.assertRaises(TypeError, codecs.getencoder) self.assertRaises(LookupError, codecs.getencoder, "__spam__") - @unittest.expectedFailureIfWindows("TODO: RUSTPYTHON") def test_getdecoder(self): self.assertRaises(TypeError, codecs.getdecoder) self.assertRaises(LookupError, codecs.getdecoder, "__spam__") - @unittest.expectedFailureIfWindows("TODO: RUSTPYTHON") def test_getreader(self): self.assertRaises(TypeError, codecs.getreader) self.assertRaises(LookupError, codecs.getreader, "__spam__") - @unittest.expectedFailureIfWindows("TODO: RUSTPYTHON") def test_getwriter(self): self.assertRaises(TypeError, codecs.getwriter) self.assertRaises(LookupError, codecs.getwriter, "__spam__") @@ -1939,7 +1941,6 @@ def test_undefined(self): self.assertRaises(UnicodeError, codecs.decode, b'abc', 'undefined', errors) - @unittest.expectedFailureIfWindows("TODO: RUSTPYTHON") def test_file_closes_if_lookup_error_raised(self): mock_open = mock.mock_open() with mock.patch('builtins.open', mock_open) as file: @@ -2894,8 +2895,6 @@ def test_escape_encode(self): class SurrogateEscapeTest(unittest.TestCase): - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_utf8(self): # Bad byte self.assertEqual(b"foo\x80bar".decode("utf-8", "surrogateescape"), @@ -2908,8 +2907,6 @@ def test_utf8(self): self.assertEqual("\udced\udcb0\udc80".encode("utf-8", "surrogateescape"), b"\xed\xb0\x80") - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_ascii(self): # bad byte self.assertEqual(b"foo\x80bar".decode("ascii", "surrogateescape"), @@ -2926,8 +2923,6 @@ def test_charmap(self): self.assertEqual("foo\udca5bar".encode("iso-8859-3", "surrogateescape"), b"foo\xa5bar") - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_latin1(self): # Issue6373 self.assertEqual("\udce4\udceb\udcef\udcf6\udcfc".encode("latin-1", "surrogateescape"), @@ -3287,7 +3282,6 @@ def test_multiple_args(self): self.check_note(RuntimeError('a', 'b', 'c'), msg_re) # http://bugs.python.org/issue19609 - @unittest.expectedFailureIfWindows("TODO: RUSTPYTHON") def test_codec_lookup_failure(self): msg = "^unknown encoding: {}$".format(self.codec_name) with self.assertRaisesRegex(LookupError, msg): @@ -3523,8 +3517,6 @@ def test_incremental(self): False) self.assertEqual(decoded, ('abc', 3)) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_mbcs_alias(self): # Check that looking up our 'default' codepage will return # mbcs when we don't have a more specific one available @@ -3574,8 +3566,6 @@ class ASCIITest(unittest.TestCase): def test_encode(self): self.assertEqual('abc123'.encode('ascii'), b'abc123') - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_encode_error(self): for data, error_handler, expected in ( ('[\x80\xff\u20ac]', 'ignore', b'[]'), @@ -3598,8 +3588,6 @@ def test_encode_surrogateescape_error(self): def test_decode(self): self.assertEqual(b'abc'.decode('ascii'), 'abc') - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_decode_error(self): for data, error_handler, expected in ( (b'[\x80\xff]', 'ignore', '[]'), @@ -3622,8 +3610,6 @@ def test_encode(self): with self.subTest(data=data, expected=expected): self.assertEqual(data.encode('latin1'), expected) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_encode_errors(self): for data, error_handler, expected in ( ('[\u20ac\udc80]', 'ignore', b'[]'), diff --git a/Lib/test/test_codeop.py b/Lib/test/test_codeop.py index 19117fa409..1036b970cd 100644 --- a/Lib/test/test_codeop.py +++ b/Lib/test/test_codeop.py @@ -323,6 +323,8 @@ def assertSyntaxErrorMatches(self, code, message): with self.assertRaisesRegex(SyntaxError, message): compile_command(code, symbol='exec') + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_syntax_errors(self): self.assertSyntaxErrorMatches( dedent("""\ diff --git a/Lib/test/test_contextlib.py b/Lib/test/test_contextlib.py index 71215ecf5d..91764696ba 100644 --- a/Lib/test/test_contextlib.py +++ b/Lib/test/test_contextlib.py @@ -10,6 +10,7 @@ from contextlib import * # Tests __all__ from test import support from test.support import os_helper +from test.support.testcase import ExceptionIsLikeMixin import weakref @@ -158,9 +159,45 @@ def whoo(): yield ctx = whoo() ctx.__enter__() - self.assertRaises( - RuntimeError, ctx.__exit__, TypeError, TypeError("foo"), None - ) + with self.assertRaises(RuntimeError): + ctx.__exit__(TypeError, TypeError("foo"), None) + if support.check_impl_detail(cpython=True): + # The "gen" attribute is an implementation detail. + self.assertFalse(ctx.gen.gi_suspended) + + def test_contextmanager_trap_no_yield(self): + @contextmanager + def whoo(): + if False: + yield + ctx = whoo() + with self.assertRaises(RuntimeError): + ctx.__enter__() + + def test_contextmanager_trap_second_yield(self): + @contextmanager + def whoo(): + yield + yield + ctx = whoo() + ctx.__enter__() + with self.assertRaises(RuntimeError): + ctx.__exit__(None, None, None) + if support.check_impl_detail(cpython=True): + # The "gen" attribute is an implementation detail. + self.assertFalse(ctx.gen.gi_suspended) + + def test_contextmanager_non_normalised(self): + @contextmanager + def whoo(): + try: + yield + except RuntimeError: + raise SyntaxError + ctx = whoo() + ctx.__enter__() + with self.assertRaises(SyntaxError): + ctx.__exit__(RuntimeError, None, None) def test_contextmanager_except(self): state = [] @@ -241,6 +278,23 @@ def test_issue29692(): self.assertEqual(ex.args[0], 'issue29692:Unchained') self.assertIsNone(ex.__cause__) + def test_contextmanager_wrap_runtimeerror(self): + @contextmanager + def woohoo(): + try: + yield + except Exception as exc: + raise RuntimeError(f'caught {exc}') from exc + with self.assertRaises(RuntimeError): + with woohoo(): + 1 / 0 + # If the context manager wrapped StopIteration in a RuntimeError, + # we also unwrap it, because we can't tell whether the wrapping was + # done by the generator machinery or by the generator itself. + with self.assertRaises(StopIteration): + with woohoo(): + raise StopIteration + def _create_contextmanager_attribs(self): def attribs(**kw): def decorate(func): @@ -252,6 +306,7 @@ def decorate(func): @attribs(foo='bar') def baz(spam): """Whee!""" + yield return baz def test_contextmanager_attribs(self): @@ -308,8 +363,11 @@ def woohoo(a, *, b): def test_recursive(self): depth = 0 + ncols = 0 @contextmanager def woohoo(): + nonlocal ncols + ncols += 1 nonlocal depth before = depth depth += 1 @@ -323,6 +381,7 @@ def recursive(): recursive() recursive() + self.assertEqual(ncols, 10) self.assertEqual(depth, 0) @@ -374,12 +433,10 @@ class FileContextTestCase(unittest.TestCase): def testWithOpen(self): tfn = tempfile.mktemp() try: - f = None with open(tfn, "w", encoding="utf-8") as f: self.assertFalse(f.closed) f.write("Booh\n") self.assertTrue(f.closed) - f = None with self.assertRaises(ZeroDivisionError): with open(tfn, "r", encoding="utf-8") as f: self.assertFalse(f.closed) @@ -1160,7 +1217,7 @@ class TestRedirectStderr(TestRedirectStream, unittest.TestCase): orig_stream = "stderr" -class TestSuppress(unittest.TestCase): +class TestSuppress(ExceptionIsLikeMixin, unittest.TestCase): @support.requires_docstrings def test_instance_docs(self): @@ -1214,6 +1271,49 @@ def test_cm_is_reentrant(self): 1/0 self.assertTrue(outer_continued) + def test_exception_groups(self): + eg_ve = lambda: ExceptionGroup( + "EG with ValueErrors only", + [ValueError("ve1"), ValueError("ve2"), ValueError("ve3")], + ) + eg_all = lambda: ExceptionGroup( + "EG with many types of exceptions", + [ValueError("ve1"), KeyError("ke1"), ValueError("ve2"), KeyError("ke2")], + ) + with suppress(ValueError): + raise eg_ve() + with suppress(ValueError, KeyError): + raise eg_all() + with self.assertRaises(ExceptionGroup) as eg1: + with suppress(ValueError): + raise eg_all() + self.assertExceptionIsLike( + eg1.exception, + ExceptionGroup( + "EG with many types of exceptions", + [KeyError("ke1"), KeyError("ke2")], + ), + ) + + # Check handling of BaseExceptionGroup, using GeneratorExit so that + # we don't accidentally discard a ctrl-c with KeyboardInterrupt. + with suppress(GeneratorExit): + raise BaseExceptionGroup("message", [GeneratorExit()]) + # If we raise a BaseException group, we can still suppress parts + with self.assertRaises(BaseExceptionGroup) as eg1: + with suppress(KeyError): + raise BaseExceptionGroup("message", [GeneratorExit("g"), KeyError("k")]) + self.assertExceptionIsLike( + eg1.exception, BaseExceptionGroup("message", [GeneratorExit("g")]), + ) + # If we suppress all the leaf BaseExceptions, we get a non-base ExceptionGroup + with self.assertRaises(ExceptionGroup) as eg1: + with suppress(GeneratorExit): + raise BaseExceptionGroup("message", [GeneratorExit("g"), KeyError("k")]) + self.assertExceptionIsLike( + eg1.exception, ExceptionGroup("message", [KeyError("k")]), + ) + class TestChdir(unittest.TestCase): def make_relative_path(self, *parts): diff --git a/Lib/test/test_csv.py b/Lib/test/test_csv.py index 2646be086c..9a1743da6d 100644 --- a/Lib/test/test_csv.py +++ b/Lib/test/test_csv.py @@ -291,18 +291,6 @@ def test_writerows_errors(self): self.assertRaises(TypeError, writer.writerows, None) self.assertRaises(OSError, writer.writerows, BadIterable()) - @support.cpython_only - @support.requires_legacy_unicode_capi() - @warnings_helper.ignore_warnings(category=DeprecationWarning) - def test_writerows_legacy_strings(self): - import _testcapi - c = _testcapi.unicode_legacy_string('a') - with TemporaryFile("w+", encoding="utf-8", newline='') as fileobj: - writer = csv.writer(fileobj) - writer.writerows([[c]]) - fileobj.seek(0) - self.assertEqual(fileobj.read(), "a\r\n") - def _read_test(self, input, expect, **kwargs): reader = csv.reader(input, **kwargs) result = list(reader) diff --git a/Lib/test/test_dataclasses.py b/Lib/test/test_dataclasses.py index 62ae5622a8..8094962ccf 100644 --- a/Lib/test/test_dataclasses.py +++ b/Lib/test/test_dataclasses.py @@ -1906,6 +1906,8 @@ def new_method(self): c = Alias(10, 1.0) self.assertEqual(c.new_method(), 1.0) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_generic_dynamic(self): T = TypeVar('T') @@ -3250,6 +3252,8 @@ def test_classvar_module_level_import(self): # won't exist on the instance. self.assertNotIn('not_iv4', c.__dict__) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_text_annotations(self): from test import dataclass_textanno diff --git a/Lib/test/test_decimal.py b/Lib/test/test_decimal.py index 04f4fc4a01..0493d6a41d 100644 --- a/Lib/test/test_decimal.py +++ b/Lib/test/test_decimal.py @@ -34,10 +34,10 @@ import locale from test.support import (is_resource_enabled, requires_IEEE_754, requires_docstrings, - requires_legacy_unicode_capi, check_sanitizer) + check_disallow_instantiation) from test.support import (TestFailed, run_with_locale, cpython_only, - darwin_malloc_err_warning, is_emscripten) + darwin_malloc_err_warning) from test.support.import_helper import import_fresh_module from test.support import threading_helper from test.support import warnings_helper @@ -586,18 +586,6 @@ def test_explicit_from_string(self): # underscores don't prevent errors self.assertRaises(InvalidOperation, Decimal, "1_2_\u00003") - @cpython_only - @requires_legacy_unicode_capi() - @warnings_helper.ignore_warnings(category=DeprecationWarning) - def test_from_legacy_strings(self): - import _testcapi - Decimal = self.decimal.Decimal - context = self.decimal.Context() - - s = _testcapi.unicode_legacy_string('9.999999') - self.assertEqual(str(Decimal(s)), '9.999999') - self.assertEqual(str(context.create_decimal(s)), '9.999999') - def test_explicit_from_tuples(self): Decimal = self.decimal.Decimal @@ -2928,23 +2916,6 @@ def test_none_args(self): assert_signals(self, c, 'traps', [InvalidOperation, DivisionByZero, Overflow]) - @cpython_only - @requires_legacy_unicode_capi() - @warnings_helper.ignore_warnings(category=DeprecationWarning) - def test_from_legacy_strings(self): - import _testcapi - c = self.decimal.Context() - - for rnd in RoundingModes: - c.rounding = _testcapi.unicode_legacy_string(rnd) - self.assertEqual(c.rounding, rnd) - - s = _testcapi.unicode_legacy_string('') - self.assertRaises(TypeError, setattr, c, 'rounding', s) - - s = _testcapi.unicode_legacy_string('ROUND_\x00UP') - self.assertRaises(TypeError, setattr, c, 'rounding', s) - def test_pickle(self): for proto in range(pickle.HIGHEST_PROTOCOL + 1): @@ -5654,48 +5625,6 @@ def __abs__(self): self.assertEqual(Decimal.from_float(cls(101.1)), Decimal.from_float(101.1)) - # Issue 41540: - @unittest.skipIf(sys.platform.startswith("aix"), - "AIX: default ulimit: test is flaky because of extreme over-allocation") - @unittest.skipIf(is_emscripten, "Test is unstable on Emscripten") - @unittest.skipIf(check_sanitizer(address=True, memory=True), - "ASAN/MSAN sanitizer defaults to crashing " - "instead of returning NULL for malloc failure.") - def test_maxcontext_exact_arith(self): - - # Make sure that exact operations do not raise MemoryError due - # to huge intermediate values when the context precision is very - # large. - - # The following functions fill the available precision and are - # therefore not suitable for large precisions (by design of the - # specification). - MaxContextSkip = ['logical_invert', 'next_minus', 'next_plus', - 'logical_and', 'logical_or', 'logical_xor', - 'next_toward', 'rotate', 'shift'] - - Decimal = C.Decimal - Context = C.Context - localcontext = C.localcontext - - # Here only some functions that are likely candidates for triggering a - # MemoryError are tested. deccheck.py has an exhaustive test. - maxcontext = Context(prec=C.MAX_PREC, Emin=C.MIN_EMIN, Emax=C.MAX_EMAX) - with localcontext(maxcontext): - self.assertEqual(Decimal(0).exp(), 1) - self.assertEqual(Decimal(1).ln(), 0) - self.assertEqual(Decimal(1).log10(), 0) - self.assertEqual(Decimal(10**2).log10(), 2) - self.assertEqual(Decimal(10**223).log10(), 223) - self.assertEqual(Decimal(10**19).logb(), 19) - self.assertEqual(Decimal(4).sqrt(), 2) - self.assertEqual(Decimal("40E9").sqrt(), Decimal('2.0E+5')) - self.assertEqual(divmod(Decimal(10), 3), (3, 1)) - self.assertEqual(Decimal(10) // 3, 3) - self.assertEqual(Decimal(4) / 2, 2) - self.assertEqual(Decimal(400) ** -1, Decimal('0.0025')) - - def test_c_signaldict_segfault(self): # See gh-106263 for details. SignalDict = type(C.Context().flags) diff --git a/Lib/test/test_difflib.py b/Lib/test/test_difflib.py index ed41074f7e..0d669afe61 100644 --- a/Lib/test/test_difflib.py +++ b/Lib/test/test_difflib.py @@ -186,7 +186,6 @@ def test_mdiff_catch_stop_iteration(self): the end""" class TestSFpatches(unittest.TestCase): - @unittest.expectedFailureIfWindows("TODO: RUSTPYTHON") def test_html_diff(self): # Check SF patch 914575 for generating HTML differences f1a = ((patch914575_from1 + '123\n'*10)*3) @@ -374,8 +373,6 @@ def test_byte_content(self): check(difflib.diff_bytes(context, a, a, b'a', b'a', b'2005', b'2013')) check(difflib.diff_bytes(context, a, b, b'a', b'b', b'2005', b'2013')) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_byte_filenames(self): # somebody renamed a file from ISO-8859-2 to UTF-8 fna = b'\xb3odz.txt' # "łodz.txt" diff --git a/Lib/test/test_enum.py b/Lib/test/test_enum.py index 3989b7d674..bff85a7ec2 100644 --- a/Lib/test/test_enum.py +++ b/Lib/test/test_enum.py @@ -1369,10 +1369,12 @@ class Inner(Enum): [Outer.a, Outer.b, Outer.Inner], ) + # TODO: RUSTPYTHON + @unittest.expectedFailure @unittest.skipIf( - python_version < (3, 13), - 'inner classes are still members', - ) + python_version < (3, 13), + 'inner classes are still members', + ) def test_nested_classes_in_enum_are_not_members(self): """Support locally-defined nested classes.""" class Outer(Enum): @@ -4555,20 +4557,24 @@ class Color(Enum): self.assertEqual(Color.green.value, 3) self.assertEqual(Color.yellow.value, 4) + # TODO: RUSTPYTHON + @unittest.expectedFailure @unittest.skipIf( - python_version < (3, 13), - 'mixed types with auto() will raise in 3.13', - ) + python_version < (3, 13), + 'inner classes are still members', + ) def test_auto_garbage_fail(self): with self.assertRaisesRegex(TypeError, 'will require all values to be sortable'): class Color(Enum): red = 'red' blue = auto() + # TODO: RUSTPYTHON + @unittest.expectedFailure @unittest.skipIf( - python_version < (3, 13), - 'mixed types with auto() will raise in 3.13', - ) + python_version < (3, 13), + 'inner classes are still members', + ) def test_auto_garbage_corrected_fail(self): with self.assertRaisesRegex(TypeError, 'will require all values to be sortable'): class Color(Enum): @@ -4598,9 +4604,9 @@ def _generate_next_value_(name, start, count, last): self.assertEqual(Color.blue.value, 'blue') @unittest.skipIf( - python_version < (3, 13), - 'auto() will return highest value + 1 in 3.13', - ) + python_version < (3, 13), + 'inner classes are still members', + ) def test_auto_with_aliases(self): class Color(Enum): red = auto() diff --git a/Lib/test/test_eof.py b/Lib/test/test_eof.py index cf12dd3d5d..082103b338 100644 --- a/Lib/test/test_eof.py +++ b/Lib/test/test_eof.py @@ -7,9 +7,9 @@ from test.support import warnings_helper import unittest -# TODO: RUSTPYTHON -@unittest.expectedFailure class EOFTestCase(unittest.TestCase): + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_EOF_single_quote(self): expect = "unterminated string literal (detected at line 1) (, line 1)" for quote in ("'", "\""): @@ -22,6 +22,8 @@ def test_EOF_single_quote(self): else: raise support.TestFailed + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_EOFS(self): expect = ("unterminated triple-quoted string literal (detected at line 1) (, line 1)") try: @@ -32,6 +34,8 @@ def test_EOFS(self): else: raise support.TestFailed + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_EOFS_with_file(self): expect = ("(, line 1)") with os_helper.temp_dir() as temp_dir: @@ -39,6 +43,8 @@ def test_EOFS_with_file(self): rc, out, err = script_helper.assert_python_failure(file_name) self.assertIn(b'unterminated triple-quoted string literal (detected at line 3)', err) + # TODO: RUSTPYTHON + @unittest.expectedFailure @warnings_helper.ignore_warnings(category=SyntaxWarning) def test_eof_with_line_continuation(self): expect = "unexpected EOF while parsing (, line 1)" @@ -49,6 +55,8 @@ def test_eof_with_line_continuation(self): else: raise support.TestFailed + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_line_continuation_EOF(self): """A continuation at the end of input must be an error; bpo2180.""" expect = 'unexpected EOF while parsing (, line 1)' diff --git a/Lib/test/test_exception_group.py b/Lib/test/test_exception_group.py index 03c721d56f..9d156a160c 100644 --- a/Lib/test/test_exception_group.py +++ b/Lib/test/test_exception_group.py @@ -1,12 +1,9 @@ import collections.abc -import traceback import types import unittest - +from test.support import C_RECURSION_LIMIT class TestExceptionGroupTypeHierarchy(unittest.TestCase): - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_exception_group_types(self): self.assertTrue(issubclass(ExceptionGroup, Exception)) self.assertTrue(issubclass(ExceptionGroup, BaseExceptionGroup)) @@ -18,8 +15,6 @@ def test_exception_is_not_generic_type(self): with self.assertRaisesRegex(TypeError, 'Exception'): Exception[OSError] - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_exception_group_is_generic_type(self): E = OSError self.assertIsInstance(ExceptionGroup[E], types.GenericAlias) @@ -38,8 +33,6 @@ def test_bad_EG_construction__too_many_args(self): with self.assertRaisesRegex(TypeError, MSG): ExceptionGroup('eg', [ValueError('too')], [TypeError('many')]) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_bad_EG_construction__bad_message(self): MSG = 'argument 1 must be str, not ' with self.assertRaisesRegex(TypeError, MSG): @@ -47,8 +40,6 @@ def test_bad_EG_construction__bad_message(self): with self.assertRaisesRegex(TypeError, MSG): ExceptionGroup(None, [ValueError(12)]) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_bad_EG_construction__bad_excs_sequence(self): MSG = r'second argument \(exceptions\) must be a sequence' with self.assertRaisesRegex(TypeError, MSG): @@ -60,8 +51,6 @@ def test_bad_EG_construction__bad_excs_sequence(self): with self.assertRaisesRegex(ValueError, MSG): ExceptionGroup("eg", []) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_bad_EG_construction__nested_non_exceptions(self): MSG = (r'Item [0-9]+ of second argument \(exceptions\)' ' is not an exception') @@ -78,16 +67,12 @@ def test_EG_wraps_Exceptions__creates_EG(self): type(ExceptionGroup("eg", excs)), ExceptionGroup) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_BEG_wraps_Exceptions__creates_EG(self): excs = [ValueError(1), TypeError(2)] self.assertIs( type(BaseExceptionGroup("beg", excs)), ExceptionGroup) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_EG_wraps_BaseException__raises_TypeError(self): MSG= "Cannot nest BaseExceptions in an ExceptionGroup" with self.assertRaisesRegex(TypeError, MSG): @@ -105,8 +90,6 @@ class MyEG(ExceptionGroup): type(MyEG("eg", [ValueError(12), TypeError(42)])), MyEG) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_EG_subclass_does_not_wrap_base_exceptions(self): class MyEG(ExceptionGroup): pass @@ -115,8 +98,6 @@ class MyEG(ExceptionGroup): with self.assertRaisesRegex(TypeError, msg): MyEG("eg", [ValueError(12), KeyboardInterrupt(42)]) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_BEG_and_E_subclass_does_not_wrap_base_exceptions(self): class MyEG(BaseExceptionGroup, ValueError): pass @@ -125,6 +106,21 @@ class MyEG(BaseExceptionGroup, ValueError): with self.assertRaisesRegex(TypeError, msg): MyEG("eg", [ValueError(12), KeyboardInterrupt(42)]) + def test_EG_and_specific_subclass_can_wrap_any_nonbase_exception(self): + class MyEG(ExceptionGroup, ValueError): + pass + + # The restriction is specific to Exception, not "the other base class" + MyEG("eg", [ValueError(12), Exception()]) + + def test_BEG_and_specific_subclass_can_wrap_any_nonbase_exception(self): + class MyEG(BaseExceptionGroup, ValueError): + pass + + # The restriction is specific to Exception, not "the other base class" + MyEG("eg", [ValueError(12), Exception()]) + + def test_BEG_subclass_wraps_anything(self): class MyBEG(BaseExceptionGroup): pass @@ -138,8 +134,6 @@ class MyBEG(BaseExceptionGroup): class StrAndReprTests(unittest.TestCase): - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_ExceptionGroup(self): eg = BaseExceptionGroup( 'flat', [ValueError(1), TypeError(2)]) @@ -160,8 +154,6 @@ def test_ExceptionGroup(self): "ExceptionGroup('flat', " "[ValueError(1), TypeError(2)]), TypeError(2)])") - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_BaseExceptionGroup(self): eg = BaseExceptionGroup( 'flat', [ValueError(1), KeyboardInterrupt(2)]) @@ -184,8 +176,6 @@ def test_BaseExceptionGroup(self): "BaseExceptionGroup('flat', " "[ValueError(1), KeyboardInterrupt(2)])])") - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_custom_exception(self): class MyEG(ExceptionGroup): pass @@ -270,8 +260,6 @@ def test_basics_ExceptionGroup_fields(self): self.assertIsNone(tb.tb_next) self.assertEqual(tb.tb_lineno, tb_linenos[1][i]) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_fields_are_readonly(self): eg = ExceptionGroup('eg', [TypeError(1), OSError(2)]) @@ -287,8 +275,6 @@ def test_fields_are_readonly(self): class ExceptionGroupTestBase(unittest.TestCase): - # TODO: RUSTPYTHON - @unittest.expectedFailure def assertMatchesTemplate(self, exc, exc_type, template): """ Assert that the exception matches the template @@ -318,7 +304,6 @@ def setUp(self): self.eg = create_simple_eg() self.eg_template = [ValueError(1), TypeError(int), ValueError(2)] - @unittest.skip("TODO: RUSTPYTHON") def test_basics_subgroup_split__bad_arg_type(self): bad_args = ["bad arg", OSError('instance not type'), @@ -330,8 +315,6 @@ def test_basics_subgroup_split__bad_arg_type(self): with self.assertRaises(TypeError): self.eg.split(arg) - - @unittest.skip("TODO: RUSTPYTHON") def test_basics_subgroup_by_type__passthrough(self): eg = self.eg self.assertIs(eg, eg.subgroup(BaseException)) @@ -339,11 +322,9 @@ def test_basics_subgroup_by_type__passthrough(self): self.assertIs(eg, eg.subgroup(BaseExceptionGroup)) self.assertIs(eg, eg.subgroup(ExceptionGroup)) - @unittest.skip("TODO: RUSTPYTHON") def test_basics_subgroup_by_type__no_match(self): self.assertIsNone(self.eg.subgroup(OSError)) - @unittest.skip("TODO: RUSTPYTHON") def test_basics_subgroup_by_type__match(self): eg = self.eg testcases = [ @@ -358,15 +339,12 @@ def test_basics_subgroup_by_type__match(self): self.assertEqual(subeg.message, eg.message) self.assertMatchesTemplate(subeg, ExceptionGroup, template) - @unittest.skip("TODO: RUSTPYTHON") def test_basics_subgroup_by_predicate__passthrough(self): self.assertIs(self.eg, self.eg.subgroup(lambda e: True)) - @unittest.skip("TODO: RUSTPYTHON") def test_basics_subgroup_by_predicate__no_match(self): self.assertIsNone(self.eg.subgroup(lambda e: False)) - @unittest.skip("TODO: RUSTPYTHON") def test_basics_subgroup_by_predicate__match(self): eg = self.eg testcases = [ @@ -386,7 +364,6 @@ def setUp(self): self.eg = create_simple_eg() self.eg_template = [ValueError(1), TypeError(int), ValueError(2)] - @unittest.skip("TODO: RUSTPYTHON") def test_basics_split_by_type__passthrough(self): for E in [BaseException, Exception, BaseExceptionGroup, ExceptionGroup]: @@ -395,14 +372,12 @@ def test_basics_split_by_type__passthrough(self): match, ExceptionGroup, self.eg_template) self.assertIsNone(rest) - @unittest.skip("TODO: RUSTPYTHON") def test_basics_split_by_type__no_match(self): match, rest = self.eg.split(OSError) self.assertIsNone(match) self.assertMatchesTemplate( rest, ExceptionGroup, self.eg_template) - @unittest.skip("TODO: RUSTPYTHON") def test_basics_split_by_type__match(self): eg = self.eg VE = ValueError @@ -427,19 +402,16 @@ def test_basics_split_by_type__match(self): else: self.assertIsNone(rest) - @unittest.skip("TODO: RUSTPYTHON") def test_basics_split_by_predicate__passthrough(self): match, rest = self.eg.split(lambda e: True) self.assertMatchesTemplate(match, ExceptionGroup, self.eg_template) self.assertIsNone(rest) - @unittest.skip("TODO: RUSTPYTHON") def test_basics_split_by_predicate__no_match(self): match, rest = self.eg.split(lambda e: False) self.assertIsNone(match) self.assertMatchesTemplate(rest, ExceptionGroup, self.eg_template) - @unittest.skip("TODO: RUSTPYTHON") def test_basics_split_by_predicate__match(self): eg = self.eg VE = ValueError @@ -465,19 +437,15 @@ def test_basics_split_by_predicate__match(self): class DeepRecursionInSplitAndSubgroup(unittest.TestCase): def make_deep_eg(self): e = TypeError(1) - for i in range(2000): + for i in range(C_RECURSION_LIMIT + 1): e = ExceptionGroup('eg', [e]) return e - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_deep_split(self): e = self.make_deep_eg() with self.assertRaises(RecursionError): e.split(TypeError) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_deep_subgroup(self): e = self.make_deep_eg() with self.assertRaises(RecursionError): @@ -501,7 +469,7 @@ def leaf_generator(exc, tbs=None): class LeafGeneratorTest(unittest.TestCase): # The leaf_generator is mentioned in PEP 654 as a suggestion - # on how to iterate over leaf nodes of an EG. It is also + # on how to iterate over leaf nodes of an EG. Is is also # used below as a test utility. So we test it here. def test_leaf_generator(self): @@ -654,8 +622,6 @@ def tb_linenos(tbs): class NestedExceptionGroupSplitTest(ExceptionGroupSplitTestBase): - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_split_by_type(self): class MyExceptionGroup(ExceptionGroup): pass @@ -755,8 +721,6 @@ def level3(i): self.assertMatchesTemplate(match, ExceptionGroup, [eg_template[0]]) self.assertMatchesTemplate(rest, ExceptionGroup, [eg_template[1]]) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_split_BaseExceptionGroup(self): def exc(ex): try: @@ -797,8 +761,6 @@ def exc(ex): self.assertMatchesTemplate( rest, ExceptionGroup, [ValueError(1)]) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_split_copies_notes(self): # make sure each exception group after a split has its own __notes__ list eg = ExceptionGroup("eg", [ValueError(1), TypeError(2)]) @@ -830,11 +792,23 @@ def test_split_does_not_copy_non_sequence_notes(self): self.assertFalse(hasattr(match, '__notes__')) self.assertFalse(hasattr(rest, '__notes__')) + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_drive_invalid_return_value(self): + class MyEg(ExceptionGroup): + def derive(self, excs): + return 42 + + eg = MyEg('eg', [TypeError(1), ValueError(2)]) + msg = "derive must return an instance of BaseExceptionGroup" + with self.assertRaisesRegex(TypeError, msg): + eg.split(TypeError) + with self.assertRaisesRegex(TypeError, msg): + eg.subgroup(TypeError) + class NestedExceptionGroupSubclassSplitTest(ExceptionGroupSplitTestBase): - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_split_ExceptionGroup_subclass_no_derive_no_new_override(self): class EG(ExceptionGroup): pass @@ -877,8 +851,6 @@ class EG(ExceptionGroup): self.assertMatchesTemplate(match, ExceptionGroup, [[TypeError(2)]]) self.assertMatchesTemplate(rest, ExceptionGroup, [ValueError(1)]) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_split_BaseExceptionGroup_subclass_no_derive_new_override(self): class EG(BaseExceptionGroup): def __new__(cls, message, excs, unused): @@ -921,8 +893,6 @@ def __new__(cls, message, excs, unused): match, BaseExceptionGroup, [KeyboardInterrupt(2)]) self.assertMatchesTemplate(rest, ExceptionGroup, [ValueError(1)]) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_split_ExceptionGroup_subclass_derive_and_new_overrides(self): class EG(ExceptionGroup): def __new__(cls, message, excs, code): diff --git a/Lib/test/test_exceptions.py b/Lib/test/test_exceptions.py index 000ef02d91..8be8122507 100644 --- a/Lib/test/test_exceptions.py +++ b/Lib/test/test_exceptions.py @@ -50,6 +50,8 @@ def raise_catch(self, exc, excname): self.assertEqual(buf1, buf2) self.assertEqual(exc.__name__, excname) + # TODO: RUSTPYTHON + @unittest.expectedFailure def testRaising(self): self.raise_catch(AttributeError, "AttributeError") self.assertRaises(AttributeError, getattr, sys, "undefined_attribute") @@ -668,8 +670,6 @@ def testChainingDescriptors(self): e.__suppress_context__ = False self.assertFalse(e.__suppress_context__) - # TODO: RUSTPYTHON - @unittest.expectedFailure def testKeywordArgs(self): # test that builtin exception don't take keyword args, # but user-defined subclasses can if they want diff --git a/Lib/test/test_fileinput.py b/Lib/test/test_fileinput.py index df894c5b2a..1a6ef3cd27 100644 --- a/Lib/test/test_fileinput.py +++ b/Lib/test/test_fileinput.py @@ -23,10 +23,9 @@ from io import BytesIO, StringIO from fileinput import FileInput, hook_encoded -from pathlib import Path from test.support import verbose -from test.support.os_helper import TESTFN +from test.support.os_helper import TESTFN, FakePath from test.support.os_helper import unlink as safe_unlink from test.support import os_helper from test import support @@ -151,7 +150,7 @@ def test_buffer_sizes(self): print('6. Inplace') savestdout = sys.stdout try: - fi = FileInput(files=(t1, t2, t3, t4), inplace=1, encoding="utf-8") + fi = FileInput(files=(t1, t2, t3, t4), inplace=True, encoding="utf-8") for line in fi: line = line[:-1].upper() print(line) @@ -256,7 +255,7 @@ def test_detached_stdin_binary_mode(self): def test_file_opening_hook(self): try: # cannot use openhook and inplace mode - fi = FileInput(inplace=1, openhook=lambda f, m: None) + fi = FileInput(inplace=True, openhook=lambda f, m: None) self.fail("FileInput should raise if both inplace " "and openhook arguments are given") except ValueError: @@ -280,8 +279,6 @@ def __call__(self, *args, **kargs): fi.readline() self.assertTrue(custom_open_hook.invoked, "openhook not invoked") - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_readline(self): with open(TESTFN, 'wb') as f: f.write(b'A\nB\r\nC\r') @@ -480,23 +477,23 @@ def test_iteration_buffering(self): self.assertRaises(StopIteration, next, fi) self.assertEqual(src.linesread, []) - def test_pathlib_file(self): - t1 = Path(self.writeTmp("Pathlib file.")) + def test_pathlike_file(self): + t1 = FakePath(self.writeTmp("Path-like file.")) with FileInput(t1, encoding="utf-8") as fi: line = fi.readline() - self.assertEqual(line, 'Pathlib file.') + self.assertEqual(line, 'Path-like file.') self.assertEqual(fi.lineno(), 1) self.assertEqual(fi.filelineno(), 1) self.assertEqual(fi.filename(), os.fspath(t1)) - def test_pathlib_file_inplace(self): - t1 = Path(self.writeTmp('Pathlib file.')) + def test_pathlike_file_inplace(self): + t1 = FakePath(self.writeTmp('Path-like file.')) with FileInput(t1, inplace=True, encoding="utf-8") as fi: line = fi.readline() - self.assertEqual(line, 'Pathlib file.') + self.assertEqual(line, 'Path-like file.') print('Modified %s' % line) with open(t1, encoding="utf-8") as f: - self.assertEqual(f.read(), 'Modified Pathlib file.\n') + self.assertEqual(f.read(), 'Modified Path-like file.\n') class MockFileInput: @@ -857,29 +854,29 @@ def setUp(self): self.fake_open = InvocationRecorder() def test_empty_string(self): - self.do_test_use_builtin_open("", 1) + self.do_test_use_builtin_open_text("", "r") def test_no_ext(self): - self.do_test_use_builtin_open("abcd", 2) + self.do_test_use_builtin_open_text("abcd", "r") @unittest.skipUnless(gzip, "Requires gzip and zlib") def test_gz_ext_fake(self): original_open = gzip.open gzip.open = self.fake_open try: - result = fileinput.hook_compressed("test.gz", "3") + result = fileinput.hook_compressed("test.gz", "r") finally: gzip.open = original_open self.assertEqual(self.fake_open.invocation_count, 1) - self.assertEqual(self.fake_open.last_invocation, (("test.gz", "3"), {})) + self.assertEqual(self.fake_open.last_invocation, (("test.gz", "r"), {})) @unittest.skipUnless(gzip, "Requires gzip and zlib") def test_gz_with_encoding_fake(self): original_open = gzip.open gzip.open = lambda filename, mode: io.BytesIO(b'Ex-binary string') try: - result = fileinput.hook_compressed("test.gz", "3", encoding="utf-8") + result = fileinput.hook_compressed("test.gz", "r", encoding="utf-8") finally: gzip.open = original_open self.assertEqual(list(result), ['Ex-binary string']) @@ -889,23 +886,40 @@ def test_bz2_ext_fake(self): original_open = bz2.BZ2File bz2.BZ2File = self.fake_open try: - result = fileinput.hook_compressed("test.bz2", "4") + result = fileinput.hook_compressed("test.bz2", "r") finally: bz2.BZ2File = original_open self.assertEqual(self.fake_open.invocation_count, 1) - self.assertEqual(self.fake_open.last_invocation, (("test.bz2", "4"), {})) + self.assertEqual(self.fake_open.last_invocation, (("test.bz2", "r"), {})) def test_blah_ext(self): - self.do_test_use_builtin_open("abcd.blah", "5") + self.do_test_use_builtin_open_binary("abcd.blah", "rb") def test_gz_ext_builtin(self): - self.do_test_use_builtin_open("abcd.Gz", "6") + self.do_test_use_builtin_open_binary("abcd.Gz", "rb") def test_bz2_ext_builtin(self): - self.do_test_use_builtin_open("abcd.Bz2", "7") + self.do_test_use_builtin_open_binary("abcd.Bz2", "rb") + + def test_binary_mode_encoding(self): + self.do_test_use_builtin_open_binary("abcd", "rb") + + def test_text_mode_encoding(self): + self.do_test_use_builtin_open_text("abcd", "r") + + def do_test_use_builtin_open_binary(self, filename, mode): + original_open = self.replace_builtin_open(self.fake_open) + try: + result = fileinput.hook_compressed(filename, mode) + finally: + self.replace_builtin_open(original_open) + + self.assertEqual(self.fake_open.invocation_count, 1) + self.assertEqual(self.fake_open.last_invocation, + ((filename, mode), {'encoding': None, 'errors': None})) - def do_test_use_builtin_open(self, filename, mode): + def do_test_use_builtin_open_text(self, filename, mode): original_open = self.replace_builtin_open(self.fake_open) try: result = fileinput.hook_compressed(filename, mode) diff --git a/Lib/test/test_float.py b/Lib/test/test_float.py index b37c3ed32e..f65eb55ca5 100644 --- a/Lib/test/test_float.py +++ b/Lib/test/test_float.py @@ -8,7 +8,7 @@ import unittest from test import support -from test.support import import_helper +from test.support.testcase import FloatsAreIdenticalMixin from test.test_grammar import (VALID_UNDERSCORE_LITERALS, INVALID_UNDERSCORE_LITERALS) from math import isinf, isnan, copysign, ldexp @@ -19,14 +19,13 @@ except ImportError: _testcapi = None -HAVE_IEEE_754 = float.__getformat__("double").startswith("IEEE") INF = float("inf") NAN = float("nan") #locate file with float format test values test_dir = os.path.dirname(__file__) or os.curdir -format_testfile = os.path.join(test_dir, 'formatfloat_testcases.txt') +format_testfile = os.path.join(test_dir, 'mathdata', 'formatfloat_testcases.txt') class FloatSubclass(float): pass @@ -36,8 +35,6 @@ class OtherFloatSubclass(float): class GeneralFloatCases(unittest.TestCase): - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_float(self): self.assertEqual(float(3.14), 3.14) self.assertEqual(float(314), 314.0) @@ -156,7 +153,9 @@ def check(s): # non-UTF-8 byte string check(b'123\xa0') - @support.run_with_locale('LC_NUMERIC', 'fr_FR', 'de_DE') + # TODO: RUSTPYTHON + @unittest.skip("RustPython panics on this") + @support.run_with_locale('LC_NUMERIC', 'fr_FR', 'de_DE', '') def test_float_with_comma(self): # set locale to something that doesn't use '.' for the decimal point # float must not accept the locale specific decimal point but @@ -401,9 +400,9 @@ def test_float_mod(self): self.assertEqualAndEqualSign(mod(1e-100, -1.0), -1.0) self.assertEqualAndEqualSign(mod(1.0, -1.0), -0.0) + @support.requires_IEEE_754 # TODO: RUSTPYTHON @unittest.expectedFailure - @support.requires_IEEE_754 def test_float_pow(self): # test builtin pow and ** operator for IEEE 754 special cases. # Special cases taken from section F.9.4.4 of the C99 specification @@ -668,8 +667,6 @@ def test_float_specials_do_unpack(self): ('')) fmt, arg = lhs.split() - self.assertEqual(fmt % float(arg), rhs) - self.assertEqual(fmt % -float(arg), '-' + rhs) + f = float(arg) + self.assertEqual(fmt % f, rhs) + self.assertEqual(fmt % -f, '-' + rhs) + if fmt != '%r': + fmt2 = fmt[1:] + self.assertEqual(format(f, fmt2), rhs) + self.assertEqual(format(-f, fmt2), '-' + rhs) def test_issue5864(self): self.assertEqual(format(123.456, '.4'), '123.5') @@ -770,8 +774,11 @@ def test_issue35560(self): self.assertEqual(format(-123.34, '00.10g'), '-123.34') class ReprTestCase(unittest.TestCase): + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_repr(self): with open(os.path.join(os.path.split(__file__)[0], + 'mathdata', 'floating_points.txt'), encoding="utf-8") as floats_file: for line in floats_file: line = line.strip() @@ -833,7 +840,7 @@ def test_short_repr(self): self.assertEqual(repr(float(negs)), str(float(negs))) @support.requires_IEEE_754 -class RoundTestCase(unittest.TestCase): +class RoundTestCase(unittest.TestCase, FloatsAreIdenticalMixin): def test_inf_nan(self): self.assertRaises(OverflowError, round, INF) @@ -863,19 +870,19 @@ def test_large_n(self): def test_small_n(self): for n in [-308, -309, -400, 1-2**31, -2**31, -2**31-1, -2**100]: - self.assertEqual(round(123.456, n), 0.0) - self.assertEqual(round(-123.456, n), -0.0) - self.assertEqual(round(1e300, n), 0.0) - self.assertEqual(round(1e-320, n), 0.0) + self.assertFloatsAreIdentical(round(123.456, n), 0.0) + self.assertFloatsAreIdentical(round(-123.456, n), -0.0) + self.assertFloatsAreIdentical(round(1e300, n), 0.0) + self.assertFloatsAreIdentical(round(1e-320, n), 0.0) def test_overflow(self): self.assertRaises(OverflowError, round, 1.6e308, -308) self.assertRaises(OverflowError, round, -1.7e308, -308) - # TODO: RUSTPYTHON - @unittest.expectedFailure @unittest.skipUnless(getattr(sys, 'float_repr_style', '') == 'short', "applies only when using short float repr style") + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_previous_round_bugs(self): # particular cases that have occurred in bug reports self.assertEqual(round(562949953421312.5, 1), @@ -892,10 +899,10 @@ def test_previous_round_bugs(self): self.assertEqual(round(85.0, -1), 80.0) self.assertEqual(round(95.0, -1), 100.0) - # TODO: RUSTPYTHON - @unittest.expectedFailure @unittest.skipUnless(getattr(sys, 'float_repr_style', '') == 'short', "applies only when using short float repr style") + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_matches_float_format(self): # round should give the same results as float formatting for i in range(500): @@ -1053,32 +1060,22 @@ def test_inf_signs(self): self.assertEqual(copysign(1.0, float('inf')), 1.0) self.assertEqual(copysign(1.0, float('-inf')), -1.0) - @unittest.skipUnless(getattr(sys, 'float_repr_style', '') == 'short', - "applies only when using short float repr style") def test_nan_signs(self): - # When using the dtoa.c code, the sign of float('nan') should - # be predictable. + # The sign of float('nan') should be predictable. self.assertEqual(copysign(1.0, float('nan')), 1.0) self.assertEqual(copysign(1.0, float('-nan')), -1.0) fromHex = float.fromhex toHex = float.hex -class HexFloatTestCase(unittest.TestCase): +class HexFloatTestCase(FloatsAreIdenticalMixin, unittest.TestCase): MAX = fromHex('0x.fffffffffffff8p+1024') # max normal MIN = fromHex('0x1p-1022') # min normal TINY = fromHex('0x0.0000000000001p-1022') # min subnormal EPS = fromHex('0x0.0000000000001p0') # diff between 1.0 and next float up def identical(self, x, y): - # check that floats x and y are identical, or that both - # are NaNs - if isnan(x) or isnan(y): - if isnan(x) == isnan(y): - return - elif x == y and (x != 0.0 or copysign(1.0, x) == copysign(1.0, y)): - return - self.fail('%r not identical to %r' % (x, y)) + self.assertFloatsAreIdentical(x, y) def test_ends(self): self.identical(self.MIN, ldexp(1.0, -1022)) @@ -1517,69 +1514,5 @@ def __init__(self, value): self.assertEqual(getattr(f, 'foo', 'none'), 'bar') -# Test PyFloat_Pack2(), PyFloat_Pack4() and PyFloat_Pack8() -# Test PyFloat_Unpack2(), PyFloat_Unpack4() and PyFloat_Unpack8() -BIG_ENDIAN = 0 -LITTLE_ENDIAN = 1 -EPSILON = { - 2: 2.0 ** -11, # binary16 - 4: 2.0 ** -24, # binary32 - 8: 2.0 ** -53, # binary64 -} - -@unittest.skipIf(_testcapi is None, 'needs _testcapi') -class PackTests(unittest.TestCase): - def test_pack(self): - self.assertEqual(_testcapi.float_pack(2, 1.5, BIG_ENDIAN), - b'>\x00') - self.assertEqual(_testcapi.float_pack(4, 1.5, BIG_ENDIAN), - b'?\xc0\x00\x00') - self.assertEqual(_testcapi.float_pack(8, 1.5, BIG_ENDIAN), - b'?\xf8\x00\x00\x00\x00\x00\x00') - self.assertEqual(_testcapi.float_pack(2, 1.5, LITTLE_ENDIAN), - b'\x00>') - self.assertEqual(_testcapi.float_pack(4, 1.5, LITTLE_ENDIAN), - b'\x00\x00\xc0?') - self.assertEqual(_testcapi.float_pack(8, 1.5, LITTLE_ENDIAN), - b'\x00\x00\x00\x00\x00\x00\xf8?') - - def test_unpack(self): - self.assertEqual(_testcapi.float_unpack(b'>\x00', BIG_ENDIAN), - 1.5) - self.assertEqual(_testcapi.float_unpack(b'?\xc0\x00\x00', BIG_ENDIAN), - 1.5) - self.assertEqual(_testcapi.float_unpack(b'?\xf8\x00\x00\x00\x00\x00\x00', BIG_ENDIAN), - 1.5) - self.assertEqual(_testcapi.float_unpack(b'\x00>', LITTLE_ENDIAN), - 1.5) - self.assertEqual(_testcapi.float_unpack(b'\x00\x00\xc0?', LITTLE_ENDIAN), - 1.5) - self.assertEqual(_testcapi.float_unpack(b'\x00\x00\x00\x00\x00\x00\xf8?', LITTLE_ENDIAN), - 1.5) - - def test_roundtrip(self): - large = 2.0 ** 100 - values = [1.0, 1.5, large, 1.0/7, math.pi] - if HAVE_IEEE_754: - values.extend((INF, NAN)) - for value in values: - for size in (2, 4, 8,): - if size == 2 and value == large: - # too large for 16-bit float - continue - rel_tol = EPSILON[size] - for endian in (BIG_ENDIAN, LITTLE_ENDIAN): - with self.subTest(value=value, size=size, endian=endian): - data = _testcapi.float_pack(size, value, endian) - value2 = _testcapi.float_unpack(data, endian) - if isnan(value): - self.assertTrue(isnan(value2), (value, value2)) - elif size < 8: - self.assertTrue(math.isclose(value2, value, rel_tol=rel_tol), - (value, value2)) - else: - self.assertEqual(value2, value) - - if __name__ == '__main__': - unittest.main() + unittest.main() \ No newline at end of file diff --git a/Lib/test/test_fstring.py b/Lib/test/test_fstring.py index b1cd9b1604..c727b5b22c 100644 --- a/Lib/test/test_fstring.py +++ b/Lib/test/test_fstring.py @@ -8,15 +8,18 @@ # Unicode identifiers in tests is allowed by PEP 3131. import ast +import datetime import os import re import types import decimal import unittest +import warnings +from test import support from test.support.os_helper import temp_cwd -from test.support.script_helper import assert_python_failure +from test.support.script_helper import assert_python_failure, assert_python_ok -a_global = 'global variable' +a_global = "global variable" # You could argue that I'm too strict in looking for specific error # values with assertRaisesRegex, but without it it's way too easy to @@ -25,6 +28,7 @@ # worthwhile tradeoff. When I switched to this method, I found many # examples where I wasn't testing what I thought I was. + class TestCase(unittest.TestCase): def assertAllRaise(self, exception_type, regex, error_strings): for str in error_strings: @@ -36,43 +40,45 @@ def test__format__lookup(self): # Make sure __format__ is looked up on the type, not the instance. class X: def __format__(self, spec): - return 'class' + return "class" x = X() # Add a bound __format__ method to the 'y' instance, but not # the 'x' instance. y = X() - y.__format__ = types.MethodType(lambda self, spec: 'instance', y) + y.__format__ = types.MethodType(lambda self, spec: "instance", y) - self.assertEqual(f'{y}', format(y)) - self.assertEqual(f'{y}', 'class') + self.assertEqual(f"{y}", format(y)) + self.assertEqual(f"{y}", "class") self.assertEqual(format(x), format(y)) # __format__ is not called this way, but still make sure it # returns what we expect (so we can make sure we're bypassing # it). - self.assertEqual(x.__format__(''), 'class') - self.assertEqual(y.__format__(''), 'instance') + self.assertEqual(x.__format__(""), "class") + self.assertEqual(y.__format__(""), "instance") # This is how __format__ is actually called. - self.assertEqual(type(x).__format__(x, ''), 'class') - self.assertEqual(type(y).__format__(y, ''), 'class') + self.assertEqual(type(x).__format__(x, ""), "class") + self.assertEqual(type(y).__format__(y, ""), "class") def test_ast(self): # Inspired by http://bugs.python.org/issue24975 class X: def __init__(self): self.called = False + def __call__(self): self.called = True return 4 + x = X() expr = """ a = 10 f'{a * x()}'""" t = ast.parse(expr) - c = compile(t, '', 'exec') + c = compile(t, "", "exec") # Make sure x was not called. self.assertFalse(x.called) @@ -278,7 +284,6 @@ def test_ast_line_numbers_duplicate_expression(self): self.assertEqual(binop.right.col_offset, 27) def test_ast_numbers_fstring_with_formatting(self): - t = ast.parse('f"Here is that pesky {xxx:.3f} again"') self.assertEqual(len(t.body), 1) self.assertEqual(t.body[0].lineno, 1) @@ -329,13 +334,13 @@ def test_ast_line_numbers_multiline_fstring(self): self.assertEqual(t.body[1].lineno, 3) self.assertEqual(t.body[1].value.lineno, 3) self.assertEqual(t.body[1].value.values[0].lineno, 3) - self.assertEqual(t.body[1].value.values[1].lineno, 3) - self.assertEqual(t.body[1].value.values[2].lineno, 3) + self.assertEqual(t.body[1].value.values[1].lineno, 4) + self.assertEqual(t.body[1].value.values[2].lineno, 6) self.assertEqual(t.body[1].col_offset, 0) self.assertEqual(t.body[1].value.col_offset, 0) - self.assertEqual(t.body[1].value.values[0].col_offset, 0) - self.assertEqual(t.body[1].value.values[1].col_offset, 0) - self.assertEqual(t.body[1].value.values[2].col_offset, 0) + self.assertEqual(t.body[1].value.values[0].col_offset, 4) + self.assertEqual(t.body[1].value.values[1].col_offset, 2) + self.assertEqual(t.body[1].value.values[2].col_offset, 11) # NOTE: the following lineno information and col_offset is correct for # expressions within FormattedValues. binop = t.body[1].value.values[1].value @@ -366,19 +371,21 @@ def test_ast_line_numbers_multiline_fstring(self): self.assertEqual(t.body[0].lineno, 2) self.assertEqual(t.body[0].value.lineno, 2) self.assertEqual(t.body[0].value.values[0].lineno, 2) - self.assertEqual(t.body[0].value.values[1].lineno, 2) - self.assertEqual(t.body[0].value.values[2].lineno, 2) + self.assertEqual(t.body[0].value.values[1].lineno, 3) + self.assertEqual(t.body[0].value.values[2].lineno, 3) self.assertEqual(t.body[0].col_offset, 0) self.assertEqual(t.body[0].value.col_offset, 4) - self.assertEqual(t.body[0].value.values[0].col_offset, 4) - self.assertEqual(t.body[0].value.values[1].col_offset, 4) - self.assertEqual(t.body[0].value.values[2].col_offset, 4) + self.assertEqual(t.body[0].value.values[0].col_offset, 8) + self.assertEqual(t.body[0].value.values[1].col_offset, 10) + self.assertEqual(t.body[0].value.values[2].col_offset, 17) # Check {blech} self.assertEqual(t.body[0].value.values[1].value.lineno, 3) self.assertEqual(t.body[0].value.values[1].value.end_lineno, 3) self.assertEqual(t.body[0].value.values[1].value.col_offset, 11) self.assertEqual(t.body[0].value.values[1].value.end_col_offset, 16) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_ast_line_numbers_with_parentheses(self): expr = """ x = ( @@ -387,6 +394,20 @@ def test_ast_line_numbers_with_parentheses(self): t = ast.parse(expr) self.assertEqual(type(t), ast.Module) self.assertEqual(len(t.body), 1) + # check the joinedstr location + joinedstr = t.body[0].value + self.assertEqual(type(joinedstr), ast.JoinedStr) + self.assertEqual(joinedstr.lineno, 3) + self.assertEqual(joinedstr.end_lineno, 3) + self.assertEqual(joinedstr.col_offset, 4) + self.assertEqual(joinedstr.end_col_offset, 17) + # check the formatted value location + fv = t.body[0].value.values[1] + self.assertEqual(type(fv), ast.FormattedValue) + self.assertEqual(fv.lineno, 3) + self.assertEqual(fv.end_lineno, 3) + self.assertEqual(fv.col_offset, 7) + self.assertEqual(fv.end_col_offset, 16) # check the test(t) location call = t.body[0].value.values[1].value self.assertEqual(type(call), ast.Call) @@ -397,6 +418,38 @@ def test_ast_line_numbers_with_parentheses(self): expr = """ x = ( + u'wat', + u"wat", + b'wat', + b"wat", + f'wat', + f"wat", +) + +y = ( + u'''wat''', + u\"\"\"wat\"\"\", + b'''wat''', + b\"\"\"wat\"\"\", + f'''wat''', + f\"\"\"wat\"\"\", +) + """ + t = ast.parse(expr) + self.assertEqual(type(t), ast.Module) + self.assertEqual(len(t.body), 2) + x, y = t.body + + # Check the single quoted string offsets first. + offsets = [(elt.col_offset, elt.end_col_offset) for elt in x.value.elts] + self.assertTrue(all(offset == (4, 10) for offset in offsets)) + + # Check the triple quoted string offsets. + offsets = [(elt.col_offset, elt.end_col_offset) for elt in y.value.elts] + self.assertTrue(all(offset == (4, 14) for offset in offsets)) + + expr = """ +x = ( 'PERL_MM_OPT', ( f'wat' f'some_string={f(x)} ' @@ -415,9 +468,9 @@ def test_ast_line_numbers_with_parentheses(self): # check the first wat self.assertEqual(type(wat1), ast.Constant) self.assertEqual(wat1.lineno, 4) - self.assertEqual(wat1.end_lineno, 6) - self.assertEqual(wat1.col_offset, 12) - self.assertEqual(wat1.end_col_offset, 18) + self.assertEqual(wat1.end_lineno, 5) + self.assertEqual(wat1.col_offset, 14) + self.assertEqual(wat1.end_col_offset, 26) # check the call call = middle.value self.assertEqual(type(call), ast.Call) @@ -427,427 +480,679 @@ def test_ast_line_numbers_with_parentheses(self): self.assertEqual(call.end_col_offset, 31) # check the second wat self.assertEqual(type(wat2), ast.Constant) - self.assertEqual(wat2.lineno, 4) + self.assertEqual(wat2.lineno, 5) self.assertEqual(wat2.end_lineno, 6) - self.assertEqual(wat2.col_offset, 12) - self.assertEqual(wat2.end_col_offset, 18) + self.assertEqual(wat2.col_offset, 32) + # wat ends at the offset 17, but the whole f-string + # ends at the offset 18 (since the quote is part of the + # f-string but not the wat string) + self.assertEqual(wat2.end_col_offset, 17) + self.assertEqual(fstring.end_col_offset, 18) + + def test_ast_fstring_empty_format_spec(self): + expr = "f'{expr:}'" + + mod = ast.parse(expr) + self.assertEqual(type(mod), ast.Module) + self.assertEqual(len(mod.body), 1) + + fstring = mod.body[0].value + self.assertEqual(type(fstring), ast.JoinedStr) + self.assertEqual(len(fstring.values), 1) + + fv = fstring.values[0] + self.assertEqual(type(fv), ast.FormattedValue) + + format_spec = fv.format_spec + self.assertEqual(type(format_spec), ast.JoinedStr) + self.assertEqual(len(format_spec.values), 0) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_docstring(self): def f(): - f'''Not a docstring''' + f"""Not a docstring""" + self.assertIsNone(f.__doc__) + def g(): - '''Not a docstring''' \ - f'' + """Not a docstring""" f"" + self.assertIsNone(g.__doc__) def test_literal_eval(self): - with self.assertRaisesRegex(ValueError, 'malformed node or string'): + with self.assertRaisesRegex(ValueError, "malformed node or string"): ast.literal_eval("f'x'") def test_ast_compile_time_concat(self): - x = [''] + x = [""] expr = """x[0] = 'foo' f'{3}'""" t = ast.parse(expr) - c = compile(t, '', 'exec') + c = compile(t, "", "exec") exec(c) - self.assertEqual(x[0], 'foo3') + self.assertEqual(x[0], "foo3") + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_compile_time_concat_errors(self): - self.assertAllRaise(SyntaxError, - 'cannot mix bytes and nonbytes literals', - [r"""f'' b''""", - r"""b'' f''""", - ]) + self.assertAllRaise( + SyntaxError, + "cannot mix bytes and nonbytes literals", + [ + r"""f'' b''""", + r"""b'' f''""", + ], + ) def test_literal(self): - self.assertEqual(f'', '') - self.assertEqual(f'a', 'a') - self.assertEqual(f' ', ' ') + self.assertEqual(f"", "") + self.assertEqual(f"a", "a") + self.assertEqual(f" ", " ") + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_unterminated_string(self): - self.assertAllRaise(SyntaxError, 'f-string: unterminated string', - [r"""f'{"x'""", - r"""f'{"x}'""", - r"""f'{("x'""", - r"""f'{("x}'""", - ]) + self.assertAllRaise( + SyntaxError, + "unterminated string", + [ + r"""f'{"x'""", + r"""f'{"x}'""", + r"""f'{("x'""", + r"""f'{("x}'""", + ], + ) + # TODO: RUSTPYTHON + @unittest.expectedFailure + @unittest.skipIf(support.is_wasi, "exhausts limited stack on WASI") def test_mismatched_parens(self): - self.assertAllRaise(SyntaxError, r"f-string: closing parenthesis '\}' " - r"does not match opening parenthesis '\('", - ["f'{((}'", - ]) - self.assertAllRaise(SyntaxError, r"f-string: closing parenthesis '\)' " - r"does not match opening parenthesis '\['", - ["f'{a[4)}'", - ]) - self.assertAllRaise(SyntaxError, r"f-string: closing parenthesis '\]' " - r"does not match opening parenthesis '\('", - ["f'{a(4]}'", - ]) - self.assertAllRaise(SyntaxError, r"f-string: closing parenthesis '\}' " - r"does not match opening parenthesis '\['", - ["f'{a[4}'", - ]) - self.assertAllRaise(SyntaxError, r"f-string: closing parenthesis '\}' " - r"does not match opening parenthesis '\('", - ["f'{a(4}'", - ]) - self.assertRaises(SyntaxError, eval, "f'{" + "("*500 + "}'") + self.assertAllRaise( + SyntaxError, + r"closing parenthesis '\}' " r"does not match opening parenthesis '\('", + [ + "f'{((}'", + ], + ) + self.assertAllRaise( + SyntaxError, + r"closing parenthesis '\)' " r"does not match opening parenthesis '\['", + [ + "f'{a[4)}'", + ], + ) + self.assertAllRaise( + SyntaxError, + r"closing parenthesis '\]' " r"does not match opening parenthesis '\('", + [ + "f'{a(4]}'", + ], + ) + self.assertAllRaise( + SyntaxError, + r"closing parenthesis '\}' " r"does not match opening parenthesis '\['", + [ + "f'{a[4}'", + ], + ) + self.assertAllRaise( + SyntaxError, + r"closing parenthesis '\}' " r"does not match opening parenthesis '\('", + [ + "f'{a(4}'", + ], + ) + self.assertRaises(SyntaxError, eval, "f'{" + "(" * 500 + "}'") + + # TODO: RUSTPYTHON + @unittest.expectedFailure + @unittest.skipIf(support.is_wasi, "exhausts limited stack on WASI") + def test_fstring_nested_too_deeply(self): + self.assertAllRaise( + SyntaxError, + "f-string: expressions nested too deeply", + ['f"{1+2:{1+2:{1+1:{1}}}}"'], + ) + + def create_nested_fstring(n): + if n == 0: + return "1+1" + prev = create_nested_fstring(n - 1) + return f'f"{{{prev}}}"' + + self.assertAllRaise( + SyntaxError, "too many nested f-strings", [create_nested_fstring(160)] + ) + + def test_syntax_error_in_nested_fstring(self): + # See gh-104016 for more information on this crash + self.assertAllRaise( + SyntaxError, "invalid syntax", ['f"{1 1:' + ('{f"1:' * 199)] + ) def test_double_braces(self): - self.assertEqual(f'{{', '{') - self.assertEqual(f'a{{', 'a{') - self.assertEqual(f'{{b', '{b') - self.assertEqual(f'a{{b', 'a{b') - self.assertEqual(f'}}', '}') - self.assertEqual(f'a}}', 'a}') - self.assertEqual(f'}}b', '}b') - self.assertEqual(f'a}}b', 'a}b') - self.assertEqual(f'{{}}', '{}') - self.assertEqual(f'a{{}}', 'a{}') - self.assertEqual(f'{{b}}', '{b}') - self.assertEqual(f'{{}}c', '{}c') - self.assertEqual(f'a{{b}}', 'a{b}') - self.assertEqual(f'a{{}}c', 'a{}c') - self.assertEqual(f'{{b}}c', '{b}c') - self.assertEqual(f'a{{b}}c', 'a{b}c') - - self.assertEqual(f'{{{10}', '{10') - self.assertEqual(f'}}{10}', '}10') - self.assertEqual(f'}}{{{10}', '}{10') - self.assertEqual(f'}}a{{{10}', '}a{10') - - self.assertEqual(f'{10}{{', '10{') - self.assertEqual(f'{10}}}', '10}') - self.assertEqual(f'{10}}}{{', '10}{') - self.assertEqual(f'{10}}}a{{' '}', '10}a{}') + self.assertEqual(f"{{", "{") + self.assertEqual(f"a{{", "a{") + self.assertEqual(f"{{b", "{b") + self.assertEqual(f"a{{b", "a{b") + self.assertEqual(f"}}", "}") + self.assertEqual(f"a}}", "a}") + self.assertEqual(f"}}b", "}b") + self.assertEqual(f"a}}b", "a}b") + self.assertEqual(f"{{}}", "{}") + self.assertEqual(f"a{{}}", "a{}") + self.assertEqual(f"{{b}}", "{b}") + self.assertEqual(f"{{}}c", "{}c") + self.assertEqual(f"a{{b}}", "a{b}") + self.assertEqual(f"a{{}}c", "a{}c") + self.assertEqual(f"{{b}}c", "{b}c") + self.assertEqual(f"a{{b}}c", "a{b}c") + + self.assertEqual(f"{{{10}", "{10") + self.assertEqual(f"}}{10}", "}10") + self.assertEqual(f"}}{{{10}", "}{10") + self.assertEqual(f"}}a{{{10}", "}a{10") + + self.assertEqual(f"{10}{{", "10{") + self.assertEqual(f"{10}}}", "10}") + self.assertEqual(f"{10}}}{{", "10}{") + self.assertEqual(f"{10}}}a{{" "}", "10}a{}") # Inside of strings, don't interpret doubled brackets. - self.assertEqual(f'{"{{}}"}', '{{}}') + self.assertEqual(f'{"{{}}"}', "{{}}") - self.assertAllRaise(TypeError, 'unhashable type', - ["f'{ {{}} }'", # dict in a set - ]) + self.assertAllRaise( + TypeError, + "unhashable type", + [ + "f'{ {{}} }'", # dict in a set + ], + ) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_compile_time_concat(self): - x = 'def' - self.assertEqual('abc' f'## {x}ghi', 'abc## defghi') - self.assertEqual('abc' f'{x}' 'ghi', 'abcdefghi') - self.assertEqual('abc' f'{x}' 'gh' f'i{x:4}', 'abcdefghidef ') - self.assertEqual('{x}' f'{x}', '{x}def') - self.assertEqual('{x' f'{x}', '{xdef') - self.assertEqual('{x}' f'{x}', '{x}def') - self.assertEqual('{{x}}' f'{x}', '{{x}}def') - self.assertEqual('{{x' f'{x}', '{{xdef') - self.assertEqual('x}}' f'{x}', 'x}}def') - self.assertEqual(f'{x}' 'x}}', 'defx}}') - self.assertEqual(f'{x}' '', 'def') - self.assertEqual('' f'{x}' '', 'def') - self.assertEqual('' f'{x}', 'def') - self.assertEqual(f'{x}' '2', 'def2') - self.assertEqual('1' f'{x}' '2', '1def2') - self.assertEqual('1' f'{x}', '1def') - self.assertEqual(f'{x}' f'-{x}', 'def-def') - self.assertEqual('' f'', '') - self.assertEqual('' f'' '', '') - self.assertEqual('' f'' '' f'', '') - self.assertEqual(f'', '') - self.assertEqual(f'' '', '') - self.assertEqual(f'' '' f'', '') - self.assertEqual(f'' '' f'' '', '') - - self.assertAllRaise(SyntaxError, "f-string: expecting '}'", - ["f'{3' f'}'", # can't concat to get a valid f-string - ]) + x = "def" + self.assertEqual("abc" f"## {x}ghi", "abc## defghi") + self.assertEqual("abc" f"{x}" "ghi", "abcdefghi") + self.assertEqual("abc" f"{x}" "gh" f"i{x:4}", "abcdefghidef ") + self.assertEqual("{x}" f"{x}", "{x}def") + self.assertEqual("{x" f"{x}", "{xdef") + self.assertEqual("{x}" f"{x}", "{x}def") + self.assertEqual("{{x}}" f"{x}", "{{x}}def") + self.assertEqual("{{x" f"{x}", "{{xdef") + self.assertEqual("x}}" f"{x}", "x}}def") + self.assertEqual(f"{x}" "x}}", "defx}}") + self.assertEqual(f"{x}" "", "def") + self.assertEqual("" f"{x}" "", "def") + self.assertEqual("" f"{x}", "def") + self.assertEqual(f"{x}" "2", "def2") + self.assertEqual("1" f"{x}" "2", "1def2") + self.assertEqual("1" f"{x}", "1def") + self.assertEqual(f"{x}" f"-{x}", "def-def") + self.assertEqual("" f"", "") + self.assertEqual("" f"" "", "") + self.assertEqual("" f"" "" f"", "") + self.assertEqual(f"", "") + self.assertEqual(f"" "", "") + self.assertEqual(f"" "" f"", "") + self.assertEqual(f"" "" f"" "", "") + + # This is not really [f'{'] + [f'}'] since we treat the inside + # of braces as a purely new context, so it is actually f'{ and + # then eval(' f') (a valid expression) and then }' which would + # constitute a valid f-string. + # TODO: RUSTPYTHON SyntaxError + # self.assertEqual(f'{' f'}', " f") + + self.assertAllRaise( + SyntaxError, + "expecting '}'", + [ + '''f'{3' f"}"''', # can't concat to get a valid f-string + ], + ) # TODO: RUSTPYTHON @unittest.expectedFailure def test_comments(self): # These aren't comments, since they're in strings. - d = {'#': 'hash'} - self.assertEqual(f'{"#"}', '#') - self.assertEqual(f'{d["#"]}', 'hash') - - self.assertAllRaise(SyntaxError, "f-string expression part cannot include '#'", - ["f'{1#}'", # error because the expression becomes "(1#)" - "f'{3(#)}'", - "f'{#}'", - ]) - self.assertAllRaise(SyntaxError, r"f-string: unmatched '\)'", - ["f'{)#}'", # When wrapped in parens, this becomes - # '()#)'. Make sure that doesn't compile. - ]) + d = {"#": "hash"} + self.assertEqual(f'{"#"}', "#") + self.assertEqual(f'{d["#"]}', "hash") + + self.assertAllRaise( + SyntaxError, + "'{' was never closed", + [ + "f'{1#}'", # error because everything after '#' is a comment + "f'{#}'", + "f'one: {1#}'", + "f'{1# one} {2 this is a comment still#}'", + ], + ) + self.assertAllRaise( + SyntaxError, + r"f-string: unmatched '\)'", + [ + "f'{)#}'", # When wrapped in parens, this becomes + # '()#)'. Make sure that doesn't compile. + ], + ) + self.assertEqual( + f"""A complex trick: { +2 # two +}""", + "A complex trick: 2", + ) + self.assertEqual( + f""" +{ +40 # forty ++ # plus +2 # two +}""", + "\n42", + ) + self.assertEqual( + f""" +{ +40 # forty ++ # plus +2 # two +}""", + "\n42", + ) +# TODO: RUSTPYTHON SyntaxError +# self.assertEqual( +# f""" +# # this is not a comment +# { # the following operation it's +# 3 # this is a number +# * 2}""", +# "\n# this is not a comment\n6", +# ) + self.assertEqual( + f""" +{# f'a {comment}' +86 # constant +# nothing more +}""", + "\n86", + ) + + self.assertAllRaise( + SyntaxError, + r"f-string: valid expression required before '}'", + [ + """f''' +{ +# only a comment +}''' +""", # this is equivalent to f'{}' + ], + ) def test_many_expressions(self): # Create a string with many expressions in it. Note that # because we have a space in here as a literal, we're actually # going to use twice as many ast nodes: one for each literal # plus one for each expression. - def build_fstr(n, extra=''): - return "f'" + ('{x} ' * n) + extra + "'" + def build_fstr(n, extra=""): + return "f'" + ("{x} " * n) + extra + "'" - x = 'X' + x = "X" width = 1 # Test around 256. for i in range(250, 260): - self.assertEqual(eval(build_fstr(i)), (x+' ')*i) + self.assertEqual(eval(build_fstr(i)), (x + " ") * i) # Test concatenating 2 largs fstrings. - self.assertEqual(eval(build_fstr(255)*256), (x+' ')*(255*256)) + self.assertEqual(eval(build_fstr(255) * 256), (x + " ") * (255 * 256)) - s = build_fstr(253, '{x:{width}} ') - self.assertEqual(eval(s), (x+' ')*254) + s = build_fstr(253, "{x:{width}} ") + self.assertEqual(eval(s), (x + " ") * 254) # Test lots of expressions and constants, concatenated. s = "f'{1}' 'x' 'y'" * 1024 - self.assertEqual(eval(s), '1xy' * 1024) + self.assertEqual(eval(s), "1xy" * 1024) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_format_specifier_expressions(self): width = 10 precision = 4 - value = decimal.Decimal('12.34567') - self.assertEqual(f'result: {value:{width}.{precision}}', 'result: 12.35') - self.assertEqual(f'result: {value:{width!r}.{precision}}', 'result: 12.35') - self.assertEqual(f'result: {value:{width:0}.{precision:1}}', 'result: 12.35') - self.assertEqual(f'result: {value:{1}{0:0}.{precision:1}}', 'result: 12.35') - self.assertEqual(f'result: {value:{ 1}{ 0:0}.{ precision:1}}', 'result: 12.35') - self.assertEqual(f'{10:#{1}0x}', ' 0xa') - self.assertEqual(f'{10:{"#"}1{0}{"x"}}', ' 0xa') - self.assertEqual(f'{-10:-{"#"}1{0}x}', ' -0xa') - self.assertEqual(f'{-10:{"-"}#{1}0{"x"}}', ' -0xa') - self.assertEqual(f'{10:#{3 != {4:5} and width}x}', ' 0xa') - - self.assertAllRaise(SyntaxError, "f-string: expecting '}'", - ["""f'{"s"!r{":10"}}'""", - - # This looks like a nested format spec. - ]) - - self.assertAllRaise(SyntaxError, "f-string: invalid syntax", - [# Invalid syntax inside a nested spec. - "f'{4:{/5}}'", - ]) - - self.assertAllRaise(SyntaxError, "f-string: expressions nested too deeply", - [# Can't nest format specifiers. - "f'result: {value:{width:{0}}.{precision:1}}'", - ]) - - self.assertAllRaise(SyntaxError, 'f-string: invalid conversion character', - [# No expansion inside conversion or for - # the : or ! itself. - """f'{"s"!{"r"}}'""", - ]) + value = decimal.Decimal("12.34567") + self.assertEqual(f"result: {value:{width}.{precision}}", "result: 12.35") + self.assertEqual(f"result: {value:{width!r}.{precision}}", "result: 12.35") + self.assertEqual( + f"result: {value:{width:0}.{precision:1}}", "result: 12.35" + ) + self.assertEqual( + f"result: {value:{1}{0:0}.{precision:1}}", "result: 12.35" + ) + self.assertEqual( + f"result: {value:{ 1}{ 0:0}.{ precision:1}}", "result: 12.35" + ) + self.assertEqual(f"{10:#{1}0x}", " 0xa") + self.assertEqual(f'{10:{"#"}1{0}{"x"}}', " 0xa") + self.assertEqual(f'{-10:-{"#"}1{0}x}', " -0xa") + self.assertEqual(f'{-10:{"-"}#{1}0{"x"}}', " -0xa") + self.assertEqual(f"{10:#{3 != {4:5} and width}x}", " 0xa") + + # TODO: RUSTPYTHON SyntaxError + # self.assertEqual( + # f"result: {value:{width:{0}}.{precision:1}}", "result: 12.35" + # ) + + + self.assertAllRaise( + SyntaxError, + "f-string: expecting ':' or '}'", + [ + """f'{"s"!r{":10"}}'""", + # This looks like a nested format spec. + ], + ) + + + self.assertAllRaise( + SyntaxError, + "f-string: expecting a valid expression after '{'", + [ # Invalid syntax inside a nested spec. + "f'{4:{/5}}'", + ], + ) + + self.assertAllRaise( + SyntaxError, + "f-string: invalid conversion character", + [ # No expansion inside conversion or for + # the : or ! itself. + """f'{"s"!{"r"}}'""", + ], + ) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_custom_format_specifier(self): + class CustomFormat: + def __format__(self, format_spec): + return format_spec + + self.assertEqual(f"{CustomFormat():\n}", "\n") + self.assertEqual(f"{CustomFormat():\u2603}", "☃") + with self.assertWarns(SyntaxWarning): + exec(r'f"{F():¯\_(ツ)_/¯}"', {"F": CustomFormat}) def test_side_effect_order(self): class X: def __init__(self): self.i = 0 + def __format__(self, spec): self.i += 1 return str(self.i) x = X() - self.assertEqual(f'{x} {x}', '1 2') + self.assertEqual(f"{x} {x}", "1 2") # TODO: RUSTPYTHON @unittest.expectedFailure def test_missing_expression(self): - self.assertAllRaise(SyntaxError, 'f-string: empty expression not allowed', - ["f'{}'", - "f'{ }'" - "f' {} '", - "f'{10:{ }}'", - "f' { } '", - - # The Python parser ignores also the following - # whitespace characters in additional to a space. - "f'''{\t\f\r\n}'''", - ]) - - # Different error messeges are raised when a specfier ('!', ':' or '=') is used after an empty expression - self.assertAllRaise(SyntaxError, "f-string: expression required before '!'", - ["f'{!r}'", - "f'{ !r}'", - "f'{!}'", - "f'''{\t\f\r\n!a}'''", - - # Catch empty expression before the - # missing closing brace. - "f'{!'", - "f'{!s:'", - - # Catch empty expression before the - # invalid conversion. - "f'{!x}'", - "f'{ !xr}'", - "f'{!x:}'", - "f'{!x:a}'", - "f'{ !xr:}'", - "f'{ !xr:a}'", - ]) - - self.assertAllRaise(SyntaxError, "f-string: expression required before ':'", - ["f'{:}'", - "f'{ :!}'", - "f'{:2}'", - "f'''{\t\f\r\n:a}'''", - "f'{:'", - ]) - - self.assertAllRaise(SyntaxError, "f-string: expression required before '='", - ["f'{=}'", - "f'{ =}'", - "f'{ =:}'", - "f'{ =!}'", - "f'''{\t\f\r\n=}'''", - "f'{='", - ]) + self.assertAllRaise( + SyntaxError, + "f-string: valid expression required before '}'", + [ + "f'{}'", + "f'{ }'" "f' {} '", + "f'{10:{ }}'", + "f' { } '", + # The Python parser ignores also the following + # whitespace characters in additional to a space. + "f'''{\t\f\r\n}'''", + ], + ) + + self.assertAllRaise( + SyntaxError, + "f-string: valid expression required before '!'", + [ + "f'{!r}'", + "f'{ !r}'", + "f'{!}'", + "f'''{\t\f\r\n!a}'''", + # Catch empty expression before the + # missing closing brace. + "f'{!'", + "f'{!s:'", + # Catch empty expression before the + # invalid conversion. + "f'{!x}'", + "f'{ !xr}'", + "f'{!x:}'", + "f'{!x:a}'", + "f'{ !xr:}'", + "f'{ !xr:a}'", + ], + ) + + self.assertAllRaise( + SyntaxError, + "f-string: valid expression required before ':'", + [ + "f'{:}'", + "f'{ :!}'", + "f'{:2}'", + "f'''{\t\f\r\n:a}'''", + "f'{:'", + "F'{[F'{:'}[F'{:'}]]]", + ], + ) + + self.assertAllRaise( + SyntaxError, + "f-string: valid expression required before '='", + [ + "f'{=}'", + "f'{ =}'", + "f'{ =:}'", + "f'{ =!}'", + "f'''{\t\f\r\n=}'''", + "f'{='", + ], + ) # Different error message is raised for other whitespace characters. - self.assertAllRaise(SyntaxError, r"invalid non-printable character U\+00A0", - ["f'''{\xa0}'''", - "\xa0", - ]) + self.assertAllRaise( + SyntaxError, + r"invalid non-printable character U\+00A0", + [ + "f'''{\xa0}'''", + "\xa0", + ], + ) # TODO: RUSTPYTHON @unittest.expectedFailure def test_parens_in_expressions(self): - self.assertEqual(f'{3,}', '(3,)') - - # Add these because when an expression is evaluated, parens - # are added around it. But we shouldn't go from an invalid - # expression to a valid one. The added parens are just - # supposed to allow whitespace (including newlines). - self.assertAllRaise(SyntaxError, 'f-string: invalid syntax', - ["f'{,}'", - "f'{,}'", # this is (,), which is an error - ]) - - self.assertAllRaise(SyntaxError, r"f-string: unmatched '\)'", - ["f'{3)+(4}'", - ]) - - self.assertAllRaise(SyntaxError, 'unterminated string literal', - ["f'{\n}'", - ]) + self.assertEqual(f"{3,}", "(3,)") + + self.assertAllRaise( + SyntaxError, + "f-string: expecting a valid expression after '{'", + [ + "f'{,}'", + ], + ) + + self.assertAllRaise( + SyntaxError, + r"f-string: unmatched '\)'", + [ + "f'{3)+(4}'", + ], + ) + + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_newlines_before_syntax_error(self): - self.assertAllRaise(SyntaxError, "invalid syntax", - ["f'{.}'", "\nf'{.}'", "\n\nf'{.}'"]) + self.assertAllRaise( + SyntaxError, + "f-string: expecting a valid expression after '{'", + ["f'{.}'", "\nf'{.}'", "\n\nf'{.}'"], + ) # TODO: RUSTPYTHON @unittest.expectedFailure def test_backslashes_in_string_part(self): - self.assertEqual(f'\t', '\t') - self.assertEqual(r'\t', '\\t') - self.assertEqual(rf'\t', '\\t') - self.assertEqual(f'{2}\t', '2\t') - self.assertEqual(f'{2}\t{3}', '2\t3') - self.assertEqual(f'\t{3}', '\t3') - - self.assertEqual(f'\u0394', '\u0394') - self.assertEqual(r'\u0394', '\\u0394') - self.assertEqual(rf'\u0394', '\\u0394') - self.assertEqual(f'{2}\u0394', '2\u0394') - self.assertEqual(f'{2}\u0394{3}', '2\u03943') - self.assertEqual(f'\u0394{3}', '\u03943') - - self.assertEqual(f'\U00000394', '\u0394') - self.assertEqual(r'\U00000394', '\\U00000394') - self.assertEqual(rf'\U00000394', '\\U00000394') - self.assertEqual(f'{2}\U00000394', '2\u0394') - self.assertEqual(f'{2}\U00000394{3}', '2\u03943') - self.assertEqual(f'\U00000394{3}', '\u03943') - - self.assertEqual(f'\N{GREEK CAPITAL LETTER DELTA}', '\u0394') - self.assertEqual(f'{2}\N{GREEK CAPITAL LETTER DELTA}', '2\u0394') - self.assertEqual(f'{2}\N{GREEK CAPITAL LETTER DELTA}{3}', '2\u03943') - self.assertEqual(f'\N{GREEK CAPITAL LETTER DELTA}{3}', '\u03943') - self.assertEqual(f'2\N{GREEK CAPITAL LETTER DELTA}', '2\u0394') - self.assertEqual(f'2\N{GREEK CAPITAL LETTER DELTA}3', '2\u03943') - self.assertEqual(f'\N{GREEK CAPITAL LETTER DELTA}3', '\u03943') - - self.assertEqual(f'\x20', ' ') - self.assertEqual(r'\x20', '\\x20') - self.assertEqual(rf'\x20', '\\x20') - self.assertEqual(f'{2}\x20', '2 ') - self.assertEqual(f'{2}\x20{3}', '2 3') - self.assertEqual(f'\x20{3}', ' 3') - - self.assertEqual(f'2\x20', '2 ') - self.assertEqual(f'2\x203', '2 3') - self.assertEqual(f'\x203', ' 3') - - with self.assertWarns(DeprecationWarning): # invalid escape sequence + self.assertEqual(f"\t", "\t") + self.assertEqual(r"\t", "\\t") + self.assertEqual(rf"\t", "\\t") + self.assertEqual(f"{2}\t", "2\t") + self.assertEqual(f"{2}\t{3}", "2\t3") + self.assertEqual(f"\t{3}", "\t3") + + self.assertEqual(f"\u0394", "\u0394") + self.assertEqual(r"\u0394", "\\u0394") + self.assertEqual(rf"\u0394", "\\u0394") + self.assertEqual(f"{2}\u0394", "2\u0394") + self.assertEqual(f"{2}\u0394{3}", "2\u03943") + self.assertEqual(f"\u0394{3}", "\u03943") + + self.assertEqual(f"\U00000394", "\u0394") + self.assertEqual(r"\U00000394", "\\U00000394") + self.assertEqual(rf"\U00000394", "\\U00000394") + self.assertEqual(f"{2}\U00000394", "2\u0394") + self.assertEqual(f"{2}\U00000394{3}", "2\u03943") + self.assertEqual(f"\U00000394{3}", "\u03943") + + self.assertEqual(f"\N{GREEK CAPITAL LETTER DELTA}", "\u0394") + self.assertEqual(f"{2}\N{GREEK CAPITAL LETTER DELTA}", "2\u0394") + self.assertEqual(f"{2}\N{GREEK CAPITAL LETTER DELTA}{3}", "2\u03943") + self.assertEqual(f"\N{GREEK CAPITAL LETTER DELTA}{3}", "\u03943") + self.assertEqual(f"2\N{GREEK CAPITAL LETTER DELTA}", "2\u0394") + self.assertEqual(f"2\N{GREEK CAPITAL LETTER DELTA}3", "2\u03943") + self.assertEqual(f"\N{GREEK CAPITAL LETTER DELTA}3", "\u03943") + + self.assertEqual(f"\x20", " ") + self.assertEqual(r"\x20", "\\x20") + self.assertEqual(rf"\x20", "\\x20") + self.assertEqual(f"{2}\x20", "2 ") + self.assertEqual(f"{2}\x20{3}", "2 3") + self.assertEqual(f"\x20{3}", " 3") + + self.assertEqual(f"2\x20", "2 ") + self.assertEqual(f"2\x203", "2 3") + self.assertEqual(f"\x203", " 3") + + with self.assertWarns(SyntaxWarning): # invalid escape sequence value = eval(r"f'\{6*7}'") - self.assertEqual(value, '\\42') - self.assertEqual(f'\\{6*7}', '\\42') - self.assertEqual(fr'\{6*7}', '\\42') - - AMPERSAND = 'spam' + self.assertEqual(value, "\\42") + with self.assertWarns(SyntaxWarning): # invalid escape sequence + value = eval(r"f'\g'") + self.assertEqual(value, "\\g") + self.assertEqual(f"\\{6*7}", "\\42") + self.assertEqual(rf"\{6*7}", "\\42") + + AMPERSAND = "spam" # Get the right unicode character (&), or pick up local variable # depending on the number of backslashes. - self.assertEqual(f'\N{AMPERSAND}', '&') - self.assertEqual(f'\\N{AMPERSAND}', '\\Nspam') - self.assertEqual(fr'\N{AMPERSAND}', '\\Nspam') - self.assertEqual(f'\\\N{AMPERSAND}', '\\&') + self.assertEqual(f"\N{AMPERSAND}", "&") + self.assertEqual(f"\\N{AMPERSAND}", "\\Nspam") + self.assertEqual(rf"\N{AMPERSAND}", "\\Nspam") + self.assertEqual(f"\\\N{AMPERSAND}", "\\&") # TODO: RUSTPYTHON @unittest.expectedFailure def test_misformed_unicode_character_name(self): # These test are needed because unicode names are parsed # differently inside f-strings. - self.assertAllRaise(SyntaxError, r"\(unicode error\) 'unicodeescape' codec can't decode bytes in position .*: malformed \\N character escape", - [r"f'\N'", - r"f'\N '", - r"f'\N '", # See bpo-46503. - r"f'\N{'", - r"f'\N{GREEK CAPITAL LETTER DELTA'", - - # Here are the non-f-string versions, - # which should give the same errors. - r"'\N'", - r"'\N '", - r"'\N '", - r"'\N{'", - r"'\N{GREEK CAPITAL LETTER DELTA'", - ]) + self.assertAllRaise( + SyntaxError, + r"\(unicode error\) 'unicodeescape' codec can't decode bytes in position .*: malformed \\N character escape", + [ + r"f'\N'", + r"f'\N '", + r"f'\N '", # See bpo-46503. + r"f'\N{'", + r"f'\N{GREEK CAPITAL LETTER DELTA'", + # Here are the non-f-string versions, + # which should give the same errors. + r"'\N'", + r"'\N '", + r"'\N '", + r"'\N{'", + r"'\N{GREEK CAPITAL LETTER DELTA'", + ], + ) # TODO: RUSTPYTHON @unittest.expectedFailure - def test_no_backslashes_in_expression_part(self): - self.assertAllRaise(SyntaxError, 'f-string expression part cannot include a backslash', - [r"f'{\'a\'}'", - r"f'{\t3}'", - r"f'{\}'", - r"rf'{\'a\'}'", - r"rf'{\t3}'", - r"rf'{\}'", - r"""rf'{"\N{LEFT CURLY BRACKET}"}'""", - r"f'{\n}'", - ]) + def test_backslashes_in_expression_part(self): + # TODO: RUSTPYTHON SyntaxError + # self.assertEqual( + # f"{( + # 1 + + # 2 + # )}", + # "3", + # ) + + self.assertEqual("\N{LEFT CURLY BRACKET}", "{") + self.assertEqual(f'{"\N{LEFT CURLY BRACKET}"}', "{") + self.assertEqual(rf'{"\N{LEFT CURLY BRACKET}"}', "{") + + self.assertAllRaise( + SyntaxError, + "f-string: valid expression required before '}'", + [ + "f'{\n}'", + ], + ) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_invalid_backslashes_inside_fstring_context(self): + # All of these variations are invalid python syntax, + # so they are also invalid in f-strings as well. + cases = [ + formatting.format(expr=expr) + for formatting in [ + "{expr}", + "f'{{{expr}}}'", + "rf'{{{expr}}}'", + ] + for expr in [ + r"\'a\'", + r"\t3", + r"\\"[0], + ] + ] + self.assertAllRaise( + SyntaxError, "unexpected character after line continuation", cases + ) def test_no_escapes_for_braces(self): """ Only literal curly braces begin an expression. """ # \x7b is '{'. - self.assertEqual(f'\x7b1+1}}', '{1+1}') - self.assertEqual(f'\x7b1+1', '{1+1') - self.assertEqual(f'\u007b1+1', '{1+1') - self.assertEqual(f'\N{LEFT CURLY BRACKET}1+1\N{RIGHT CURLY BRACKET}', '{1+1}') + self.assertEqual(f"\x7b1+1}}", "{1+1}") + self.assertEqual(f"\x7b1+1", "{1+1") + self.assertEqual(f"\u007b1+1", "{1+1") + self.assertEqual(f"\N{LEFT CURLY BRACKET}1+1\N{RIGHT CURLY BRACKET}", "{1+1}") def test_newlines_in_expressions(self): - self.assertEqual(f'{0}', '0') - self.assertEqual(rf'''{3+ -4}''', '7') + self.assertEqual(f"{0}", "0") + self.assertEqual( + rf"""{3+ +4}""", + "7", + ) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_lambda(self): x = 5 self.assertEqual(f'{(lambda y:x*y)("8")!r}', "'88888'") @@ -855,17 +1160,99 @@ def test_lambda(self): self.assertEqual(f'{(lambda y:x*y)("8"):10}', "88888 ") # lambda doesn't work without parens, because the colon - # makes the parser think it's a format_spec - self.assertAllRaise(SyntaxError, 'f-string: invalid syntax', - ["f'{lambda x:x}'", - ]) + # makes the parser think it's a format_spec + # emit warning if we can match a format_spec + self.assertAllRaise( + SyntaxError, + "f-string: lambda expressions are not allowed " "without parentheses", + [ + "f'{lambda x:x}'", + "f'{lambda :x}'", + "f'{lambda *arg, :x}'", + "f'{1, lambda:x}'", + "f'{lambda x:}'", + "f'{lambda :}'", + ], + ) + # Ensure the detection of invalid lambdas doesn't trigger detection + # for valid lambdas in the second error pass + with self.assertRaisesRegex(SyntaxError, "invalid syntax"): + compile("lambda name_3=f'{name_4}': {name_3}\n1 $ 1", "", "exec") + + # but don't emit the paren warning in general cases + with self.assertRaisesRegex( + SyntaxError, "f-string: expecting a valid expression after '{'" + ): + eval("f'{+ lambda:None}'") + + def test_valid_prefixes(self): + self.assertEqual(f"{1}", "1") + self.assertEqual(Rf"{2}", "2") + self.assertEqual(Rf"{3}", "3") + + def test_roundtrip_raw_quotes(self): + self.assertEqual(rf"\'", "\\'") + self.assertEqual(rf"\"", '\\"') + self.assertEqual(rf"\"\'", "\\\"\\'") + self.assertEqual(rf"\'\"", "\\'\\\"") + self.assertEqual(rf"\"\'\"", '\\"\\\'\\"') + self.assertEqual(rf"\'\"\'", "\\'\\\"\\'") + self.assertEqual(rf"\"\'\"\'", "\\\"\\'\\\"\\'") + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_fstring_backslash_before_double_bracket(self): + deprecated_cases = [ + (r"f'\{{\}}'", "\\{\\}"), + (r"f'\{{'", "\\{"), + (r"f'\{{{1+1}'", "\\{2"), + (r"f'\}}{1+1}'", "\\}2"), + (r"f'{1+1}\}}'", "2\\}"), + ] + + for case, expected_result in deprecated_cases: + with self.subTest(case=case, expected_result=expected_result): + with self.assertWarns(SyntaxWarning): + result = eval(case) + self.assertEqual(result, expected_result) + self.assertEqual(rf"\{{\}}", "\\{\\}") + self.assertEqual(rf"\{{", "\\{") + self.assertEqual(rf"\{{{1+1}", "\\{2") + self.assertEqual(rf"\}}{1+1}", "\\}2") + self.assertEqual(rf"{1+1}\}}", "2\\}") + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_fstring_backslash_before_double_bracket_warns_once(self): + with self.assertWarns(SyntaxWarning) as w: + eval(r"f'\{{'") + self.assertEqual(len(w.warnings), 1) + self.assertEqual(w.warnings[0].category, SyntaxWarning) + + def test_fstring_backslash_prefix_raw(self): + self.assertEqual(f"\\", "\\") + self.assertEqual(f"\\\\", "\\\\") + self.assertEqual(rf"\\", r"\\") + self.assertEqual(rf"\\\\", r"\\\\") + self.assertEqual(rf"\\", r"\\") + self.assertEqual(rf"\\\\", r"\\\\") + self.assertEqual(Rf"\\", R"\\") + self.assertEqual(Rf"\\\\", R"\\\\") + self.assertEqual(Rf"\\", R"\\") + self.assertEqual(Rf"\\\\", R"\\\\") + self.assertEqual(Rf"\\", R"\\") + self.assertEqual(Rf"\\\\", R"\\\\") + + def test_fstring_format_spec_greedy_matching(self): + self.assertEqual(f"{1:}}}", "1}") + self.assertEqual(f"{1:>3{5}}}}", " 1}") def test_yield(self): # Not terribly useful, but make sure the yield turns # a function into a generator def fn(y): - f'y:{yield y*2}' - f'{yield}' + f"y:{yield y*2}" + f"{yield}" g = fn(4) self.assertEqual(next(g), 8) @@ -873,257 +1260,331 @@ def fn(y): def test_yield_send(self): def fn(x): - yield f'x:{yield (lambda i: x * i)}' + yield f"x:{yield (lambda i: x * i)}" g = fn(10) the_lambda = next(g) self.assertEqual(the_lambda(4), 40) - self.assertEqual(g.send('string'), 'x:string') + self.assertEqual(g.send("string"), "x:string") - def test_expressions_with_triple_quoted_strings(self): - self.assertEqual(f"{'''x'''}", 'x') - # TODO: RUSTPYTHON self.assertEqual(f"{'''eric's'''}", "eric's") + # TODO: RUSTPYTHON SyntaxError + # def test_expressions_with_triple_quoted_strings(self): + # self.assertEqual(f"{'''x'''}", 'x') + # self.assertEqual(f"{'''eric's'''}", "eric's") - # Test concatenation within an expression - # TODO: RUSTPYTHON self.assertEqual(f'{"x" """eric"s""" "y"}', 'xeric"sy') - # TODO: RUSTPYTHON self.assertEqual(f'{"x" """eric"s"""}', 'xeric"s') - # TODO: RUSTPYTHON self.assertEqual(f'{"""eric"s""" "y"}', 'eric"sy') - # TODO: RUSTPYTHON self.assertEqual(f'{"""x""" """eric"s""" "y"}', 'xeric"sy') - # TODO: RUSTPYTHON self.assertEqual(f'{"""x""" """eric"s""" """y"""}', 'xeric"sy') - # TODO: RUSTPYTHON self.assertEqual(f'{r"""x""" """eric"s""" """y"""}', 'xeric"sy') + # # Test concatenation within an expression + # self.assertEqual(f'{"x" """eric"s""" "y"}', 'xeric"sy') + # self.assertEqual(f'{"x" """eric"s"""}', 'xeric"s') + # self.assertEqual(f'{"""eric"s""" "y"}', 'eric"sy') + # self.assertEqual(f'{"""x""" """eric"s""" "y"}', 'xeric"sy') + # self.assertEqual(f'{"""x""" """eric"s""" """y"""}', 'xeric"sy') + # self.assertEqual(f'{r"""x""" """eric"s""" """y"""}', 'xeric"sy') def test_multiple_vars(self): x = 98 - y = 'abc' - self.assertEqual(f'{x}{y}', '98abc') + y = "abc" + self.assertEqual(f"{x}{y}", "98abc") - self.assertEqual(f'X{x}{y}', 'X98abc') - self.assertEqual(f'{x}X{y}', '98Xabc') - self.assertEqual(f'{x}{y}X', '98abcX') + self.assertEqual(f"X{x}{y}", "X98abc") + self.assertEqual(f"{x}X{y}", "98Xabc") + self.assertEqual(f"{x}{y}X", "98abcX") - self.assertEqual(f'X{x}Y{y}', 'X98Yabc') - self.assertEqual(f'X{x}{y}Y', 'X98abcY') - self.assertEqual(f'{x}X{y}Y', '98XabcY') + self.assertEqual(f"X{x}Y{y}", "X98Yabc") + self.assertEqual(f"X{x}{y}Y", "X98abcY") + self.assertEqual(f"{x}X{y}Y", "98XabcY") - self.assertEqual(f'X{x}Y{y}Z', 'X98YabcZ') + self.assertEqual(f"X{x}Y{y}Z", "X98YabcZ") def test_closure(self): def outer(x): def inner(): - return f'x:{x}' + return f"x:{x}" + return inner - self.assertEqual(outer('987')(), 'x:987') - self.assertEqual(outer(7)(), 'x:7') + self.assertEqual(outer("987")(), "x:987") + self.assertEqual(outer(7)(), "x:7") def test_arguments(self): y = 2 + def f(x, width): - return f'x={x*y:{width}}' + return f"x={x*y:{width}}" - self.assertEqual(f('foo', 10), 'x=foofoo ') - x = 'bar' - self.assertEqual(f(10, 10), 'x= 20') + self.assertEqual(f("foo", 10), "x=foofoo ") + x = "bar" + self.assertEqual(f(10, 10), "x= 20") def test_locals(self): value = 123 - self.assertEqual(f'v:{value}', 'v:123') + self.assertEqual(f"v:{value}", "v:123") def test_missing_variable(self): with self.assertRaises(NameError): - f'v:{value}' + f"v:{value}" def test_missing_format_spec(self): class O: def __format__(self, spec): if not spec: - return '*' + return "*" return spec - self.assertEqual(f'{O():x}', 'x') - self.assertEqual(f'{O()}', '*') - self.assertEqual(f'{O():}', '*') + self.assertEqual(f"{O():x}", "x") + self.assertEqual(f"{O()}", "*") + self.assertEqual(f"{O():}", "*") - self.assertEqual(f'{3:}', '3') - self.assertEqual(f'{3!s:}', '3') + self.assertEqual(f"{3:}", "3") + self.assertEqual(f"{3!s:}", "3") def test_global(self): - self.assertEqual(f'g:{a_global}', 'g:global variable') - self.assertEqual(f'g:{a_global!r}', "g:'global variable'") + self.assertEqual(f"g:{a_global}", "g:global variable") + self.assertEqual(f"g:{a_global!r}", "g:'global variable'") - a_local = 'local variable' - self.assertEqual(f'g:{a_global} l:{a_local}', - 'g:global variable l:local variable') - self.assertEqual(f'g:{a_global!r}', - "g:'global variable'") - self.assertEqual(f'g:{a_global} l:{a_local!r}', - "g:global variable l:'local variable'") + a_local = "local variable" + self.assertEqual( + f"g:{a_global} l:{a_local}", "g:global variable l:local variable" + ) + self.assertEqual(f"g:{a_global!r}", "g:'global variable'") + self.assertEqual( + f"g:{a_global} l:{a_local!r}", "g:global variable l:'local variable'" + ) - self.assertIn("module 'unittest' from", f'{unittest}') + self.assertIn("module 'unittest' from", f"{unittest}") def test_shadowed_global(self): - a_global = 'really a local' - self.assertEqual(f'g:{a_global}', 'g:really a local') - self.assertEqual(f'g:{a_global!r}', "g:'really a local'") - - a_local = 'local variable' - self.assertEqual(f'g:{a_global} l:{a_local}', - 'g:really a local l:local variable') - self.assertEqual(f'g:{a_global!r}', - "g:'really a local'") - self.assertEqual(f'g:{a_global} l:{a_local!r}', - "g:really a local l:'local variable'") + a_global = "really a local" + self.assertEqual(f"g:{a_global}", "g:really a local") + self.assertEqual(f"g:{a_global!r}", "g:'really a local'") + + a_local = "local variable" + self.assertEqual( + f"g:{a_global} l:{a_local}", "g:really a local l:local variable" + ) + self.assertEqual(f"g:{a_global!r}", "g:'really a local'") + self.assertEqual( + f"g:{a_global} l:{a_local!r}", "g:really a local l:'local variable'" + ) def test_call(self): def foo(x): - return 'x=' + str(x) + return "x=" + str(x) - self.assertEqual(f'{foo(10)}', 'x=10') + self.assertEqual(f"{foo(10)}", "x=10") def test_nested_fstrings(self): y = 5 - self.assertEqual(f'{f"{0}"*3}', '000') - self.assertEqual(f'{f"{y}"*3}', '555') + self.assertEqual(f'{f"{0}"*3}', "000") + self.assertEqual(f'{f"{y}"*3}', "555") def test_invalid_string_prefixes(self): - single_quote_cases = ["fu''", - "uf''", - "Fu''", - "fU''", - "Uf''", - "uF''", - "ufr''", - "urf''", - "fur''", - "fru''", - "rfu''", - "ruf''", - "FUR''", - "Fur''", - "fb''", - "fB''", - "Fb''", - "FB''", - "bf''", - "bF''", - "Bf''", - "BF''",] + single_quote_cases = [ + "fu''", + "uf''", + "Fu''", + "fU''", + "Uf''", + "uF''", + "ufr''", + "urf''", + "fur''", + "fru''", + "rfu''", + "ruf''", + "FUR''", + "Fur''", + "fb''", + "fB''", + "Fb''", + "FB''", + "bf''", + "bF''", + "Bf''", + "BF''", + ] double_quote_cases = [case.replace("'", '"') for case in single_quote_cases] - self.assertAllRaise(SyntaxError, 'invalid syntax', - single_quote_cases + double_quote_cases) + self.assertAllRaise( + SyntaxError, "invalid syntax", single_quote_cases + double_quote_cases + ) def test_leading_trailing_spaces(self): - self.assertEqual(f'{ 3}', '3') - self.assertEqual(f'{ 3}', '3') - self.assertEqual(f'{3 }', '3') - self.assertEqual(f'{3 }', '3') + self.assertEqual(f"{ 3}", "3") + self.assertEqual(f"{ 3}", "3") + self.assertEqual(f"{3 }", "3") + self.assertEqual(f"{3 }", "3") - self.assertEqual(f'expr={ {x: y for x, y in [(1, 2), ]}}', - 'expr={1: 2}') - self.assertEqual(f'expr={ {x: y for x, y in [(1, 2), ]} }', - 'expr={1: 2}') + self.assertEqual(f"expr={ {x: y for x, y in [(1, 2), ]}}", "expr={1: 2}") + self.assertEqual(f"expr={ {x: y for x, y in [(1, 2), ]} }", "expr={1: 2}") def test_not_equal(self): # There's a special test for this because there's a special # case in the f-string parser to look for != as not ending an # expression. Normally it would, while looking for !s or !r. - self.assertEqual(f'{3!=4}', 'True') - self.assertEqual(f'{3!=4:}', 'True') - self.assertEqual(f'{3!=4!s}', 'True') - self.assertEqual(f'{3!=4!s:.3}', 'Tru') + self.assertEqual(f"{3!=4}", "True") + self.assertEqual(f"{3!=4:}", "True") + self.assertEqual(f"{3!=4!s}", "True") + self.assertEqual(f"{3!=4!s:.3}", "Tru") def test_equal_equal(self): # Because an expression ending in = has special meaning, # there's a special test for ==. Make sure it works. - self.assertEqual(f'{0==1}', 'False') + self.assertEqual(f"{0==1}", "False") + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_conversions(self): - self.assertEqual(f'{3.14:10.10}', ' 3.14') - self.assertEqual(f'{3.14!s:10.10}', '3.14 ') - self.assertEqual(f'{3.14!r:10.10}', '3.14 ') - self.assertEqual(f'{3.14!a:10.10}', '3.14 ') + self.assertEqual(f"{3.14:10.10}", " 3.14") + self.assertEqual(f"{3.14!s:10.10}", "3.14 ") + self.assertEqual(f"{3.14!r:10.10}", "3.14 ") + self.assertEqual(f"{3.14!a:10.10}", "3.14 ") - self.assertEqual(f'{"a"}', 'a') + self.assertEqual(f'{"a"}', "a") self.assertEqual(f'{"a"!r}', "'a'") self.assertEqual(f'{"a"!a}', "'a'") + # Conversions can have trailing whitespace after them since it + # does not provide any significance + # TODO: RUSTPYTHON SyntaxError + # self.assertEqual(f"{3!s }", "3") + # self.assertEqual(f"{3.14!s :10.10}", "3.14 ") + # Not a conversion. self.assertEqual(f'{"a!r"}', "a!r") # Not a conversion, but show that ! is allowed in a format spec. - self.assertEqual(f'{3.14:!<10.10}', '3.14!!!!!!') - - self.assertAllRaise(SyntaxError, 'f-string: invalid conversion character', - ["f'{3!g}'", - "f'{3!A}'", - "f'{3!3}'", - "f'{3!G}'", - "f'{3!!}'", - "f'{3!:}'", - "f'{3! s}'", # no space before conversion char - ]) - - self.assertAllRaise(SyntaxError, "f-string: expecting '}'", - ["f'{x!s{y}}'", - "f'{3!ss}'", - "f'{3!ss:}'", - "f'{3!ss:s}'", - ]) + self.assertEqual(f"{3.14:!<10.10}", "3.14!!!!!!") + + self.assertAllRaise( + SyntaxError, + "f-string: expecting '}'", + [ + "f'{3!'", + "f'{3!s'", + "f'{3!g'", + ], + ) + + self.assertAllRaise( + SyntaxError, + "f-string: missing conversion character", + [ + "f'{3!}'", + "f'{3!:'", + "f'{3!:}'", + ], + ) + + for conv_identifier in "g", "A", "G", "ä", "ɐ": + self.assertAllRaise( + SyntaxError, + "f-string: invalid conversion character %r: " + "expected 's', 'r', or 'a'" % conv_identifier, + ["f'{3!" + conv_identifier + "}'"], + ) + + for conv_non_identifier in "3", "!": + self.assertAllRaise( + SyntaxError, + "f-string: invalid conversion character", + ["f'{3!" + conv_non_identifier + "}'"], + ) + + for conv in " s", " s ": + self.assertAllRaise( + SyntaxError, + "f-string: conversion type must come right after the" + " exclamanation mark", + ["f'{3!" + conv + "}'"], + ) + + self.assertAllRaise( + SyntaxError, + "f-string: invalid conversion character 'ss': " "expected 's', 'r', or 'a'", + [ + "f'{3!ss}'", + "f'{3!ss:}'", + "f'{3!ss:s}'", + ], + ) def test_assignment(self): - self.assertAllRaise(SyntaxError, r'invalid syntax', - ["f'' = 3", - "f'{0}' = x", - "f'{x}' = x", - ]) + self.assertAllRaise( + SyntaxError, + r"invalid syntax", + [ + "f'' = 3", + "f'{0}' = x", + "f'{x}' = x", + ], + ) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_del(self): - self.assertAllRaise(SyntaxError, 'invalid syntax', - ["del f''", - "del '' f''", - ]) + self.assertAllRaise( + SyntaxError, + "invalid syntax", + [ + "del f''", + "del '' f''", + ], + ) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_mismatched_braces(self): - self.assertAllRaise(SyntaxError, "f-string: single '}' is not allowed", - ["f'{{}'", - "f'{{}}}'", - "f'}'", - "f'x}'", - "f'x}x'", - r"f'\u007b}'", - - # Can't have { or } in a format spec. - "f'{3:}>10}'", - "f'{3:}}>10}'", - ]) - - self.assertAllRaise(SyntaxError, "f-string: expecting '}'", - ["f'{3:{{>10}'", - "f'{3'", - "f'{3!'", - "f'{3:'", - "f'{3!s'", - "f'{3!s:'", - "f'{3!s:3'", - "f'x{'", - "f'x{x'", - "f'{x'", - "f'{3:s'", - "f'{{{'", - "f'{{}}{'", - "f'{'", - "f'x{<'", # See bpo-46762. - "f'x{>'", - "f'{i='", # See gh-93418. - ]) + self.assertAllRaise( + SyntaxError, + "f-string: single '}' is not allowed", + [ + "f'{{}'", + "f'{{}}}'", + "f'}'", + "f'x}'", + "f'x}x'", + r"f'\u007b}'", + # Can't have { or } in a format spec. + "f'{3:}>10}'", + "f'{3:}}>10}'", + ], + ) + + self.assertAllRaise( + SyntaxError, + "f-string: expecting '}'", + [ + "f'{3'", + "f'{3!'", + "f'{3:'", + "f'{3!s'", + "f'{3!s:'", + "f'{3!s:3'", + "f'x{'", + "f'x{x'", + "f'{x'", + "f'{3:s'", + "f'{{{'", + "f'{{}}{'", + "f'{'", + "f'{i='", # See gh-93418. + ], + ) + + self.assertAllRaise( + SyntaxError, + "f-string: expecting a valid expression after '{'", + [ + "f'{3:{{>10}'", + ], + ) # But these are just normal strings. - self.assertEqual(f'{"{"}', '{') - self.assertEqual(f'{"}"}', '}') - self.assertEqual(f'{3:{"}"}>10}', '}}}}}}}}}3') - self.assertEqual(f'{2:{"{"}>10}', '{{{{{{{{{2') + self.assertEqual(f'{"{"}', "{") + self.assertEqual(f'{"}"}', "}") + self.assertEqual(f'{3:{"}"}>10}', "}}}}}}}}}3") + self.assertEqual(f'{2:{"{"}>10}', "{{{{{{{{{2") def test_if_conditional(self): # There's special logic in compile.c to test if the @@ -1132,7 +1593,7 @@ def test_if_conditional(self): def test_fstring(x, expected): flag = 0 - if f'{x}': + if f"{x}": flag = 1 else: flag = 2 @@ -1140,7 +1601,7 @@ def test_fstring(x, expected): def test_concat_empty(x, expected): flag = 0 - if '' f'{x}': + if "" f"{x}": flag = 1 else: flag = 2 @@ -1148,141 +1609,151 @@ def test_concat_empty(x, expected): def test_concat_non_empty(x, expected): flag = 0 - if ' ' f'{x}': + if " " f"{x}": flag = 1 else: flag = 2 self.assertEqual(flag, expected) - test_fstring('', 2) - test_fstring(' ', 1) + test_fstring("", 2) + test_fstring(" ", 1) - test_concat_empty('', 2) - test_concat_empty(' ', 1) + test_concat_empty("", 2) + test_concat_empty(" ", 1) - test_concat_non_empty('', 1) - test_concat_non_empty(' ', 1) + test_concat_non_empty("", 1) + test_concat_non_empty(" ", 1) def test_empty_format_specifier(self): - x = 'test' - self.assertEqual(f'{x}', 'test') - self.assertEqual(f'{x:}', 'test') - self.assertEqual(f'{x!s:}', 'test') - self.assertEqual(f'{x!r:}', "'test'") + x = "test" + self.assertEqual(f"{x}", "test") + self.assertEqual(f"{x:}", "test") + self.assertEqual(f"{x!s:}", "test") + self.assertEqual(f"{x!r:}", "'test'") - # TODO: RUSTPYTHON d[0] error - @unittest.expectedFailure def test_str_format_differences(self): - d = {'a': 'string', - 0: 'integer', - } + d = { + "a": "string", + 0: "integer", + } a = 0 - self.assertEqual(f'{d[0]}', 'integer') - self.assertEqual(f'{d["a"]}', 'string') - self.assertEqual(f'{d[a]}', 'integer') - self.assertEqual('{d[a]}'.format(d=d), 'string') - self.assertEqual('{d[0]}'.format(d=d), 'integer') + self.assertEqual(f"{d[0]}", "integer") + self.assertEqual(f'{d["a"]}', "string") + self.assertEqual(f"{d[a]}", "integer") + self.assertEqual("{d[a]}".format(d=d), "string") + self.assertEqual("{d[0]}".format(d=d), "integer") # TODO: RUSTPYTHON @unittest.expectedFailure def test_errors(self): # see issue 26287 - self.assertAllRaise(TypeError, 'unsupported', - [r"f'{(lambda: 0):x}'", - r"f'{(0,):x}'", - ]) - self.assertAllRaise(ValueError, 'Unknown format code', - [r"f'{1000:j}'", - r"f'{1000:j}'", - ]) + self.assertAllRaise( + TypeError, + "unsupported", + [ + r"f'{(lambda: 0):x}'", + r"f'{(0,):x}'", + ], + ) + self.assertAllRaise( + ValueError, + "Unknown format code", + [ + r"f'{1000:j}'", + r"f'{1000:j}'", + ], + ) def test_filename_in_syntaxerror(self): # see issue 38964 with temp_cwd() as cwd: - file_path = os.path.join(cwd, 't.py') - with open(file_path, 'w', encoding="utf-8") as f: - f.write('f"{a b}"') # This generates a SyntaxError - _, _, stderr = assert_python_failure(file_path, - PYTHONIOENCODING='ascii') - self.assertIn(file_path.encode('ascii', 'backslashreplace'), stderr) + file_path = os.path.join(cwd, "t.py") + with open(file_path, "w", encoding="utf-8") as f: + f.write('f"{a b}"') # This generates a SyntaxError + _, _, stderr = assert_python_failure(file_path, PYTHONIOENCODING="ascii") + self.assertIn(file_path.encode("ascii", "backslashreplace"), stderr) def test_loop(self): for i in range(1000): - self.assertEqual(f'i:{i}', 'i:' + str(i)) + self.assertEqual(f"i:{i}", "i:" + str(i)) def test_dict(self): - d = {'"': 'dquote', - "'": 'squote', - 'foo': 'bar', - } - self.assertEqual(f'''{d["'"]}''', 'squote') - self.assertEqual(f"""{d['"']}""", 'dquote') + d = { + '"': "dquote", + "'": "squote", + "foo": "bar", + } + self.assertEqual(f"""{d["'"]}""", "squote") + self.assertEqual(f"""{d['"']}""", "dquote") - self.assertEqual(f'{d["foo"]}', 'bar') - self.assertEqual(f"{d['foo']}", 'bar') + self.assertEqual(f'{d["foo"]}', "bar") + self.assertEqual(f"{d['foo']}", "bar") def test_backslash_char(self): # Check eval of a backslash followed by a control char. # See bpo-30682: this used to raise an assert in pydebug mode. - self.assertEqual(eval('f"\\\n"'), '') - self.assertEqual(eval('f"\\\r"'), '') + self.assertEqual(eval('f"\\\n"'), "") + self.assertEqual(eval('f"\\\r"'), "") def test_debug_conversion(self): - x = 'A string' - self.assertEqual(f'{x=}', 'x=' + repr(x)) - self.assertEqual(f'{x =}', 'x =' + repr(x)) - self.assertEqual(f'{x=!s}', 'x=' + str(x)) - self.assertEqual(f'{x=!r}', 'x=' + repr(x)) - self.assertEqual(f'{x=!a}', 'x=' + ascii(x)) + x = "A string" + self.assertEqual(f"{x=}", "x=" + repr(x)) + self.assertEqual(f"{x =}", "x =" + repr(x)) + self.assertEqual(f"{x=!s}", "x=" + str(x)) + self.assertEqual(f"{x=!r}", "x=" + repr(x)) + self.assertEqual(f"{x=!a}", "x=" + ascii(x)) x = 2.71828 - self.assertEqual(f'{x=:.2f}', 'x=' + format(x, '.2f')) - self.assertEqual(f'{x=:}', 'x=' + format(x, '')) - self.assertEqual(f'{x=!r:^20}', 'x=' + format(repr(x), '^20')) - self.assertEqual(f'{x=!s:^20}', 'x=' + format(str(x), '^20')) - self.assertEqual(f'{x=!a:^20}', 'x=' + format(ascii(x), '^20')) + self.assertEqual(f"{x=:.2f}", "x=" + format(x, ".2f")) + self.assertEqual(f"{x=:}", "x=" + format(x, "")) + self.assertEqual(f"{x=!r:^20}", "x=" + format(repr(x), "^20")) + self.assertEqual(f"{x=!s:^20}", "x=" + format(str(x), "^20")) + self.assertEqual(f"{x=!a:^20}", "x=" + format(ascii(x), "^20")) x = 9 - self.assertEqual(f'{3*x+15=}', '3*x+15=42') + self.assertEqual(f"{3*x+15=}", "3*x+15=42") # There is code in ast.c that deals with non-ascii expression values. So, # use a unicode identifier to trigger that. tenπ = 31.4 - self.assertEqual(f'{tenπ=:.2f}', 'tenπ=31.40') + self.assertEqual(f"{tenπ=:.2f}", "tenπ=31.40") # Also test with Unicode in non-identifiers. - self.assertEqual(f'{"Σ"=}', '"Σ"=\'Σ\'') + self.assertEqual(f'{"Σ"=}', "\"Σ\"='Σ'") # Make sure nested fstrings still work. - self.assertEqual(f'{f"{3.1415=:.1f}":*^20}', '*****3.1415=3.1*****') + self.assertEqual(f'{f"{3.1415=:.1f}":*^20}', "*****3.1415=3.1*****") # Make sure text before and after an expression with = works # correctly. - pi = 'π' - self.assertEqual(f'alpha α {pi=} ω omega', "alpha α pi='π' ω omega") + pi = "π" + self.assertEqual(f"alpha α {pi=} ω omega", "alpha α pi='π' ω omega") # Check multi-line expressions. - self.assertEqual(f'''{ + self.assertEqual( + f"""{ 3 -=}''', '\n3\n=3') +=}""", + "\n3\n=3", + ) # Since = is handled specially, make sure all existing uses of # it still work. - self.assertEqual(f'{0==1}', 'False') - self.assertEqual(f'{0!=1}', 'True') - self.assertEqual(f'{0<=1}', 'True') - self.assertEqual(f'{0>=1}', 'False') - self.assertEqual(f'{(x:="5")}', '5') - self.assertEqual(x, '5') - self.assertEqual(f'{(x:=5)}', '5') + self.assertEqual(f"{0==1}", "False") + self.assertEqual(f"{0!=1}", "True") + self.assertEqual(f"{0<=1}", "True") + self.assertEqual(f"{0>=1}", "False") + self.assertEqual(f'{(x:="5")}', "5") + self.assertEqual(x, "5") + self.assertEqual(f"{(x:=5)}", "5") self.assertEqual(x, 5) - self.assertEqual(f'{"="}', '=') + self.assertEqual(f'{"="}', "=") x = 20 # This isn't an assignment expression, it's 'x', with a format # spec of '=10'. See test_walrus: you need to use parens. - self.assertEqual(f'{x:=10}', ' 20') + self.assertEqual(f"{x:=10}", " 20") # Test named function parameters, to make sure '=' parsing works # there. @@ -1291,36 +1762,54 @@ def f(a): oldx = x x = a return oldx + x = 0 - self.assertEqual(f'{f(a="3=")}', '0') - self.assertEqual(x, '3=') - self.assertEqual(f'{f(a=4)}', '3=') + self.assertEqual(f'{f(a="3=")}', "0") + self.assertEqual(x, "3=") + self.assertEqual(f"{f(a=4)}", "3=") self.assertEqual(x, 4) + # Check debug expressions in format spec + y = 20 + self.assertEqual(f"{2:{y=}}", "yyyyyyyyyyyyyyyyyyy2") + self.assertEqual( + f"{datetime.datetime.now():h1{y=}h2{y=}h3{y=}}", "h1y=20h2y=20h3y=20" + ) + # Make sure __format__ is being called. class C: def __format__(self, s): - return f'FORMAT-{s}' + return f"FORMAT-{s}" + def __repr__(self): - return 'REPR' + return "REPR" - self.assertEqual(f'{C()=}', 'C()=REPR') - self.assertEqual(f'{C()=!r}', 'C()=REPR') - self.assertEqual(f'{C()=:}', 'C()=FORMAT-') - self.assertEqual(f'{C()=: }', 'C()=FORMAT- ') - self.assertEqual(f'{C()=:x}', 'C()=FORMAT-x') - self.assertEqual(f'{C()=!r:*^20}', 'C()=********REPR********') + self.assertEqual(f"{C()=}", "C()=REPR") + self.assertEqual(f"{C()=!r}", "C()=REPR") + self.assertEqual(f"{C()=:}", "C()=FORMAT-") + self.assertEqual(f"{C()=: }", "C()=FORMAT- ") + self.assertEqual(f"{C()=:x}", "C()=FORMAT-x") + self.assertEqual(f"{C()=!r:*^20}", "C()=********REPR********") + self.assertEqual(f"{C():{20=}}", "FORMAT-20=20") self.assertRaises(SyntaxError, eval, "f'{C=]'") # Make sure leading and following text works. - x = 'foo' - self.assertEqual(f'X{x=}Y', 'Xx='+repr(x)+'Y') + x = "foo" + self.assertEqual(f"X{x=}Y", "Xx=" + repr(x) + "Y") # Make sure whitespace around the = works. - self.assertEqual(f'X{x =}Y', 'Xx ='+repr(x)+'Y') - self.assertEqual(f'X{x= }Y', 'Xx= '+repr(x)+'Y') - self.assertEqual(f'X{x = }Y', 'Xx = '+repr(x)+'Y') + self.assertEqual(f"X{x =}Y", "Xx =" + repr(x) + "Y") + self.assertEqual(f"X{x= }Y", "Xx= " + repr(x) + "Y") + self.assertEqual(f"X{x = }Y", "Xx = " + repr(x) + "Y") + self.assertEqual(f"sadsd {1 + 1 = :{1 + 1:1d}f}", "sadsd 1 + 1 = 2.000000") + +# TODO: RUSTPYTHON SyntaxError +# self.assertEqual( +# f"{1+2 = # my comment +# }", +# "1+2 = \n 3", +# ) # These next lines contains tabs. Backslash escapes don't # work in f-strings. @@ -1328,23 +1817,25 @@ def __repr__(self): # this will be to dynamically created and exec the f-strings. But # that's such a hassle I'll save it for another day. For now, convert # the tabs to spaces just to shut up patchcheck. - #self.assertEqual(f'X{x =}Y', 'Xx\t='+repr(x)+'Y') - #self.assertEqual(f'X{x = }Y', 'Xx\t=\t'+repr(x)+'Y') + # self.assertEqual(f'X{x =}Y', 'Xx\t='+repr(x)+'Y') + # self.assertEqual(f'X{x = }Y', 'Xx\t=\t'+repr(x)+'Y') def test_walrus(self): x = 20 # This isn't an assignment expression, it's 'x', with a format # spec of '=10'. - self.assertEqual(f'{x:=10}', ' 20') + self.assertEqual(f"{x:=10}", " 20") # This is an assignment expression, which requires parens. - self.assertEqual(f'{(x:=10)}', '10') + self.assertEqual(f"{(x:=10)}", "10") self.assertEqual(x, 10) # TODO: RUSTPYTHON @unittest.expectedFailure def test_invalid_syntax_error_message(self): - with self.assertRaisesRegex(SyntaxError, "f-string: invalid syntax"): + with self.assertRaisesRegex( + SyntaxError, "f-string: expecting '=', or '!', or ':', or '}'" + ): compile("f'{a $ b}'", "?", "exec") # TODO: RUSTPYTHON @@ -1352,37 +1843,112 @@ def test_invalid_syntax_error_message(self): def test_with_two_commas_in_format_specifier(self): error_msg = re.escape("Cannot specify ',' with ','.") with self.assertRaisesRegex(ValueError, error_msg): - f'{1:,,}' + f"{1:,,}" # TODO: RUSTPYTHON @unittest.expectedFailure def test_with_two_underscore_in_format_specifier(self): error_msg = re.escape("Cannot specify '_' with '_'.") with self.assertRaisesRegex(ValueError, error_msg): - f'{1:__}' + f"{1:__}" # TODO: RUSTPYTHON @unittest.expectedFailure def test_with_a_commas_and_an_underscore_in_format_specifier(self): error_msg = re.escape("Cannot specify both ',' and '_'.") with self.assertRaisesRegex(ValueError, error_msg): - f'{1:,_}' + f"{1:,_}" # TODO: RUSTPYTHON @unittest.expectedFailure def test_with_an_underscore_and_a_comma_in_format_specifier(self): error_msg = re.escape("Cannot specify both ',' and '_'.") with self.assertRaisesRegex(ValueError, error_msg): - f'{1:_,}' + f"{1:_,}" + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_syntax_error_for_starred_expressions(self): - error_msg = re.escape("cannot use starred expression here") - with self.assertRaisesRegex(SyntaxError, error_msg): + with self.assertRaisesRegex(SyntaxError, "can't use starred expression here"): compile("f'{*a}'", "?", "exec") - error_msg = re.escape("cannot use double starred expression here") - with self.assertRaisesRegex(SyntaxError, error_msg): + with self.assertRaisesRegex( + SyntaxError, "f-string: expecting a valid expression after '{'" + ): compile("f'{**a}'", "?", "exec") -if __name__ == '__main__': + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_not_closing_quotes(self): + self.assertAllRaise(SyntaxError, "unterminated f-string literal", ['f"', "f'"]) + self.assertAllRaise( + SyntaxError, "unterminated triple-quoted f-string literal", ['f"""', "f'''"] + ) + # Ensure that the errors are reported at the correct line number. + data = '''\ +x = 1 + 1 +y = 2 + 2 +z = f""" +sdfjnsdfjsdf +sdfsdfs{1+ +2} dfigdf {3+ +4}sdufsd"" +''' + try: + compile(data, "?", "exec") + except SyntaxError as e: + self.assertEqual(e.text, 'z = f"""') + self.assertEqual(e.lineno, 3) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_syntax_error_after_debug(self): + self.assertAllRaise( + SyntaxError, + "f-string: expecting a valid expression after '{'", + [ + "f'{1=}{;'", + "f'{1=}{+;'", + "f'{1=}{2}{;'", + "f'{1=}{3}{;'", + ], + ) + self.assertAllRaise( + SyntaxError, + "f-string: expecting '=', or '!', or ':', or '}'", + [ + "f'{1=}{1;'", + "f'{1=}{1;}'", + ], + ) + + def test_debug_in_file(self): + with temp_cwd(): + script = "script.py" + with open("script.py", "w") as f: + f.write(f"""\ +print(f'''{{ +3 +=}}''')""") + + _, stdout, _ = assert_python_ok(script) + self.assertEqual( + stdout.decode("utf-8").strip().replace("\r\n", "\n").replace("\r", "\n"), + "3\n=3", + ) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_syntax_warning_infinite_recursion_in_file(self): + with temp_cwd(): + script = "script.py" + with open(script, "w") as f: + f.write(r"print(f'\{1}')") + + _, stdout, stderr = assert_python_ok(script) + self.assertIn(rb"\1", stdout) + self.assertEqual(len(stderr.strip().splitlines()), 2) + + +if __name__ == "__main__": unittest.main() diff --git a/Lib/test/test_ftplib.py b/Lib/test/test_ftplib.py index 7e632efa4c..b3e4e776a4 100644 --- a/Lib/test/test_ftplib.py +++ b/Lib/test/test_ftplib.py @@ -25,15 +25,6 @@ from test.support import asyncore from test.support.socket_helper import HOST, HOSTv6 -import sys -if sys.platform == 'win32': - raise unittest.SkipTest("test_ftplib not working on windows") -if getattr(sys, '_rustpython_debugbuild', False): - raise unittest.SkipTest("something's weird on debug builds") - -asynchat = warnings_helper.import_deprecated('asynchat') -asyncore = warnings_helper.import_deprecated('asyncore') - support.requires_working_socket(module=True) diff --git a/Lib/test/test_future_stmt/test_future.py b/Lib/test/test_future_stmt/test_future.py index 4a978cef4a..9c30054963 100644 --- a/Lib/test/test_future_stmt/test_future.py +++ b/Lib/test/test_future_stmt/test_future.py @@ -67,6 +67,8 @@ def test_badfuture5(self): from test.test_future_stmt import badsyntax_future5 self.check_syntax_error(cm.exception, "badsyntax_future5", 4) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_badfuture6(self): with self.assertRaises(SyntaxError) as cm: from test.test_future_stmt import badsyntax_future6 @@ -132,8 +134,6 @@ def test_unicode_literals_exec(self): exec("from __future__ import unicode_literals; x = ''", {}, scope) self.assertIsInstance(scope["x"], str) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_syntactical_future_repl(self): p = spawn_python('-i') p.stdin.write(b"from __future__ import barry_as_FLUFL\n") @@ -442,8 +442,6 @@ def foo(): def bar(arg: (yield)): pass """)) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_get_type_hints_on_func_with_variadic_arg(self): # `typing.get_type_hints` might break on a function with a variadic # annotation (e.g. `f(*args: *Ts)`) if `from __future__ import diff --git a/Lib/test/test_genericalias.py b/Lib/test/test_genericalias.py index 560b96f7e3..4d630ed166 100644 --- a/Lib/test/test_genericalias.py +++ b/Lib/test/test_genericalias.py @@ -173,6 +173,8 @@ def test_exposed_type(self): self.assertEqual(a.__args__, (int,)) self.assertEqual(a.__parameters__, ()) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_parameters(self): from typing import List, Dict, Callable D0 = dict[str, int] @@ -212,6 +214,8 @@ def test_parameters(self): self.assertEqual(L5.__args__, (Callable[[K, V], K],)) self.assertEqual(L5.__parameters__, (K, V)) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_parameter_chaining(self): from typing import List, Dict, Union, Callable self.assertEqual(list[T][int], list[int]) @@ -271,6 +275,8 @@ class MyType(type): with self.assertRaises(TypeError): MyType[int] + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_pickle(self): alias = GenericAlias(list, T) for proto in range(pickle.HIGHEST_PROTOCOL + 1): @@ -280,6 +286,8 @@ def test_pickle(self): self.assertEqual(loaded.__args__, alias.__args__) self.assertEqual(loaded.__parameters__, alias.__parameters__) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_copy(self): class X(list): def __copy__(self): @@ -303,6 +311,8 @@ def test_union(self): self.assertEqual(a.__args__, (list[int], list[str])) self.assertEqual(a.__parameters__, ()) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_union_generic(self): a = typing.Union[list[T], tuple[T, ...]] self.assertEqual(a.__args__, (list[T], tuple[T, ...])) diff --git a/Lib/test/test_getopt.py b/Lib/test/test_getopt.py index c8b3442de4..295a2c8136 100644 --- a/Lib/test/test_getopt.py +++ b/Lib/test/test_getopt.py @@ -1,19 +1,19 @@ # test_getopt.py # David Goodger 2000-08-19 -from test.support.os_helper import EnvironmentVarGuard import doctest -import unittest - import getopt +import sys +import unittest +from test.support.i18n_helper import TestTranslationsBase, update_translation_snapshots +from test.support.os_helper import EnvironmentVarGuard sentinel = object() class GetoptTests(unittest.TestCase): def setUp(self): self.env = self.enterContext(EnvironmentVarGuard()) - if "POSIXLY_CORRECT" in self.env: - del self.env["POSIXLY_CORRECT"] + del self.env["POSIXLY_CORRECT"] def assertError(self, *args, **kwargs): self.assertRaises(getopt.GetoptError, *args, **kwargs) @@ -173,10 +173,20 @@ def test_libref_examples(): ['a1', 'a2'] """ + +class TestTranslations(TestTranslationsBase): + def test_translations(self): + self.assertMsgidsEqual(getopt) + + def load_tests(loader, tests, pattern): tests.addTest(doctest.DocTestSuite()) return tests -if __name__ == "__main__": +if __name__ == '__main__': + # To regenerate translation snapshots + if len(sys.argv) > 1 and sys.argv[1] == '--snapshot-update': + update_translation_snapshots(getopt) + sys.exit(0) unittest.main() diff --git a/Lib/test/test_getpass.py b/Lib/test/test_getpass.py index 3452e46213..80dda2caaa 100644 --- a/Lib/test/test_getpass.py +++ b/Lib/test/test_getpass.py @@ -26,7 +26,10 @@ def test_username_priorities_of_env_values(self, environ): environ.get.return_value = None try: getpass.getuser() - except ImportError: # in case there's no pwd module + except OSError: # in case there's no pwd module + pass + except KeyError: + # current user has no pwd entry pass self.assertEqual( environ.get.call_args_list, @@ -44,7 +47,7 @@ def test_username_falls_back_to_pwd(self, environ): getpass.getuser()) getpw.assert_called_once_with(42) else: - self.assertRaises(ImportError, getpass.getuser) + self.assertRaises(OSError, getpass.getuser) class GetpassRawinputTest(unittest.TestCase): diff --git a/Lib/test/test_global.py b/Lib/test/test_global.py index f5b38c25ea..4c1bb6c0cf 100644 --- a/Lib/test/test_global.py +++ b/Lib/test/test_global.py @@ -12,6 +12,8 @@ def setUp(self): self.enterContext(check_warnings()) warnings.filterwarnings("error", module="") + # TODO: RUSTPYTHON + @unittest.expectedFailure def test1(self): prog_text_1 = """\ def wrong1(): @@ -22,6 +24,8 @@ def wrong1(): """ check_syntax_error(self, prog_text_1, lineno=4, offset=5) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test2(self): prog_text_2 = """\ def wrong2(): @@ -30,6 +34,8 @@ def wrong2(): """ check_syntax_error(self, prog_text_2, lineno=3, offset=5) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test3(self): prog_text_3 = """\ def wrong3(): diff --git a/Lib/test/test_grammar.py b/Lib/test/test_grammar.py index a797fd2b22..d5c9250ab0 100644 --- a/Lib/test/test_grammar.py +++ b/Lib/test/test_grammar.py @@ -1062,6 +1062,8 @@ def g2(x): self.assertEqual(g2(False), 0) self.assertEqual(g2(True), ('end', 1)) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_yield(self): # Allowed as standalone statement def g(): yield 1 @@ -1617,8 +1619,6 @@ def test_nested_front(): self.assertEqual(x, [('Boeing', 'Airliner'), ('Boeing', 'Engine'), ('Ford', 'Engine'), ('Macdonalds', 'Cheeseburger')]) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_genexps(self): # generator expression tests g = ([x for x in range(10)] for x in range(1)) diff --git a/Lib/test/test_gzip.py b/Lib/test/test_gzip.py index 9d66385abd..42bb7d6984 100644 --- a/Lib/test/test_gzip.py +++ b/Lib/test/test_gzip.py @@ -5,7 +5,6 @@ import functools import io import os -import pathlib import struct import sys import unittest @@ -16,6 +15,7 @@ from test.support.script_helper import assert_python_ok, assert_python_failure gzip = import_helper.import_module('gzip') +zlib = import_helper.import_module('zlib') data1 = b""" int length=DEFAULTALLOC, err = Z_OK; PyObject *RetVal; @@ -78,16 +78,18 @@ def test_write(self): f.close() def test_write_read_with_pathlike_file(self): - filename = pathlib.Path(self.filename) + filename = os_helper.FakePath(self.filename) with gzip.GzipFile(filename, 'w') as f: f.write(data1 * 50) self.assertIsInstance(f.name, str) + self.assertEqual(f.name, self.filename) with gzip.GzipFile(filename, 'a') as f: f.write(data1) with gzip.GzipFile(filename) as f: d = f.read() self.assertEqual(d, data1 * 51) self.assertIsInstance(f.name, str) + self.assertEqual(f.name, self.filename) # The following test_write_xy methods test that write accepts # the corresponding bytes-like object type as input @@ -471,15 +473,122 @@ def test_textio_readlines(self): with io.TextIOWrapper(f, encoding="ascii") as t: self.assertEqual(t.readlines(), lines) + def test_fileobj_with_name(self): + with open(self.filename, "xb") as raw: + with gzip.GzipFile(fileobj=raw, mode="x") as f: + f.write(b'one') + self.assertEqual(f.name, raw.name) + self.assertEqual(f.fileno(), raw.fileno()) + self.assertEqual(f.mode, gzip.WRITE) + self.assertIs(f.readable(), False) + self.assertIs(f.writable(), True) + self.assertIs(f.seekable(), True) + self.assertIs(f.closed, False) + self.assertIs(f.closed, True) + self.assertEqual(f.name, raw.name) + self.assertRaises(AttributeError, f.fileno) + self.assertEqual(f.mode, gzip.WRITE) + self.assertIs(f.readable(), False) + self.assertIs(f.writable(), True) + self.assertIs(f.seekable(), True) + + with open(self.filename, "wb") as raw: + with gzip.GzipFile(fileobj=raw, mode="w") as f: + f.write(b'two') + self.assertEqual(f.name, raw.name) + self.assertEqual(f.fileno(), raw.fileno()) + self.assertEqual(f.mode, gzip.WRITE) + self.assertIs(f.readable(), False) + self.assertIs(f.writable(), True) + self.assertIs(f.seekable(), True) + self.assertIs(f.closed, False) + self.assertIs(f.closed, True) + self.assertEqual(f.name, raw.name) + self.assertRaises(AttributeError, f.fileno) + self.assertEqual(f.mode, gzip.WRITE) + self.assertIs(f.readable(), False) + self.assertIs(f.writable(), True) + self.assertIs(f.seekable(), True) + + with open(self.filename, "ab") as raw: + with gzip.GzipFile(fileobj=raw, mode="a") as f: + f.write(b'three') + self.assertEqual(f.name, raw.name) + self.assertEqual(f.fileno(), raw.fileno()) + self.assertEqual(f.mode, gzip.WRITE) + self.assertIs(f.readable(), False) + self.assertIs(f.writable(), True) + self.assertIs(f.seekable(), True) + self.assertIs(f.closed, False) + self.assertIs(f.closed, True) + self.assertEqual(f.name, raw.name) + self.assertRaises(AttributeError, f.fileno) + self.assertEqual(f.mode, gzip.WRITE) + self.assertIs(f.readable(), False) + self.assertIs(f.writable(), True) + self.assertIs(f.seekable(), True) + + with open(self.filename, "rb") as raw: + with gzip.GzipFile(fileobj=raw, mode="r") as f: + self.assertEqual(f.read(), b'twothree') + self.assertEqual(f.name, raw.name) + self.assertEqual(f.fileno(), raw.fileno()) + self.assertEqual(f.mode, gzip.READ) + self.assertIs(f.readable(), True) + self.assertIs(f.writable(), False) + self.assertIs(f.seekable(), True) + self.assertIs(f.closed, False) + self.assertIs(f.closed, True) + self.assertEqual(f.name, raw.name) + self.assertRaises(AttributeError, f.fileno) + self.assertEqual(f.mode, gzip.READ) + self.assertIs(f.readable(), True) + self.assertIs(f.writable(), False) + self.assertIs(f.seekable(), True) + def test_fileobj_from_fdopen(self): # Issue #13781: Opening a GzipFile for writing fails when using a # fileobj created with os.fdopen(). - fd = os.open(self.filename, os.O_WRONLY | os.O_CREAT) - with os.fdopen(fd, "wb") as f: - with gzip.GzipFile(fileobj=f, mode="w") as g: - pass + fd = os.open(self.filename, os.O_WRONLY | os.O_CREAT | os.O_EXCL) + with os.fdopen(fd, "xb") as raw: + with gzip.GzipFile(fileobj=raw, mode="x") as f: + f.write(b'one') + self.assertEqual(f.name, '') + self.assertEqual(f.fileno(), raw.fileno()) + self.assertIs(f.closed, True) + self.assertEqual(f.name, '') + self.assertRaises(AttributeError, f.fileno) + + fd = os.open(self.filename, os.O_WRONLY | os.O_CREAT | os.O_TRUNC) + with os.fdopen(fd, "wb") as raw: + with gzip.GzipFile(fileobj=raw, mode="w") as f: + f.write(b'two') + self.assertEqual(f.name, '') + self.assertEqual(f.fileno(), raw.fileno()) + self.assertEqual(f.name, '') + self.assertRaises(AttributeError, f.fileno) + + fd = os.open(self.filename, os.O_WRONLY | os.O_CREAT | os.O_APPEND) + with os.fdopen(fd, "ab") as raw: + with gzip.GzipFile(fileobj=raw, mode="a") as f: + f.write(b'three') + self.assertEqual(f.name, '') + self.assertEqual(f.fileno(), raw.fileno()) + self.assertEqual(f.name, '') + self.assertRaises(AttributeError, f.fileno) + + fd = os.open(self.filename, os.O_RDONLY) + with os.fdopen(fd, "rb") as raw: + with gzip.GzipFile(fileobj=raw, mode="r") as f: + self.assertEqual(f.read(), b'twothree') + self.assertEqual(f.name, '') + self.assertEqual(f.fileno(), raw.fileno()) + self.assertEqual(f.name, '') + self.assertRaises(AttributeError, f.fileno) def test_fileobj_mode(self): + self.assertEqual(gzip.READ, 'rb') + self.assertEqual(gzip.WRITE, 'wb') gzip.GzipFile(self.filename, "wb").close() with open(self.filename, "r+b") as f: with gzip.GzipFile(fileobj=f, mode='r') as g: @@ -507,17 +616,69 @@ def test_fileobj_mode(self): def test_bytes_filename(self): str_filename = self.filename - try: - bytes_filename = str_filename.encode("ascii") - except UnicodeEncodeError: - self.skipTest("Temporary file name needs to be ASCII") + bytes_filename = os.fsencode(str_filename) with gzip.GzipFile(bytes_filename, "wb") as f: f.write(data1 * 50) + self.assertEqual(f.name, bytes_filename) with gzip.GzipFile(bytes_filename, "rb") as f: self.assertEqual(f.read(), data1 * 50) + self.assertEqual(f.name, bytes_filename) # Sanity check that we are actually operating on the right file. with gzip.GzipFile(str_filename, "rb") as f: self.assertEqual(f.read(), data1 * 50) + self.assertEqual(f.name, str_filename) + + def test_fileobj_without_name(self): + bio = io.BytesIO() + with gzip.GzipFile(fileobj=bio, mode='wb') as f: + f.write(data1 * 50) + self.assertEqual(f.name, '') + self.assertRaises(io.UnsupportedOperation, f.fileno) + self.assertEqual(f.mode, gzip.WRITE) + self.assertIs(f.readable(), False) + self.assertIs(f.writable(), True) + self.assertIs(f.seekable(), True) + self.assertIs(f.closed, False) + self.assertIs(f.closed, True) + self.assertEqual(f.name, '') + self.assertRaises(AttributeError, f.fileno) + self.assertEqual(f.mode, gzip.WRITE) + self.assertIs(f.readable(), False) + self.assertIs(f.writable(), True) + self.assertIs(f.seekable(), True) + + bio.seek(0) + with gzip.GzipFile(fileobj=bio, mode='rb') as f: + self.assertEqual(f.read(), data1 * 50) + self.assertEqual(f.name, '') + self.assertRaises(io.UnsupportedOperation, f.fileno) + self.assertEqual(f.mode, gzip.READ) + self.assertIs(f.readable(), True) + self.assertIs(f.writable(), False) + self.assertIs(f.seekable(), True) + self.assertIs(f.closed, False) + self.assertIs(f.closed, True) + self.assertEqual(f.name, '') + self.assertRaises(AttributeError, f.fileno) + self.assertEqual(f.mode, gzip.READ) + self.assertIs(f.readable(), True) + self.assertIs(f.writable(), False) + self.assertIs(f.seekable(), True) + + def test_fileobj_and_filename(self): + filename2 = self.filename + 'new' + with (open(self.filename, 'wb') as fileobj, + gzip.GzipFile(fileobj=fileobj, filename=filename2, mode='wb') as f): + f.write(data1 * 50) + self.assertEqual(f.name, filename2) + with (open(self.filename, 'rb') as fileobj, + gzip.GzipFile(fileobj=fileobj, filename=filename2, mode='rb') as f): + self.assertEqual(f.read(), data1 * 50) + self.assertEqual(f.name, filename2) + # Sanity check that we are actually operating on the right file. + with gzip.GzipFile(self.filename, 'rb') as f: + self.assertEqual(f.read(), data1 * 50) + self.assertEqual(f.name, self.filename) def test_decompress_limited(self): """Decompressed data buffering should be limited""" @@ -552,8 +713,18 @@ def test_compress_mtime(self): f.read(1) # to set mtime attribute self.assertEqual(f.mtime, mtime) + def test_compress_mtime_default(self): + # test for gh-125260 + datac = gzip.compress(data1, mtime=0) + datac2 = gzip.compress(data1) + self.assertEqual(datac, datac2) + datac3 = gzip.compress(data1, mtime=None) + self.assertNotEqual(datac, datac3) + with gzip.GzipFile(fileobj=io.BytesIO(datac3), mode="rb") as f: + f.read(1) # to set mtime attribute + self.assertGreater(f.mtime, 1) + def test_compress_correct_level(self): - # gzip.compress calls with mtime == 0 take a different code path. for mtime in (0, 42): with self.subTest(mtime=mtime): nocompress = gzip.compress(data1, compresslevel=0, mtime=mtime) @@ -561,6 +732,17 @@ def test_compress_correct_level(self): self.assertIn(data1, nocompress) self.assertNotIn(data1, yescompress) + def test_issue112346(self): + # The OS byte should be 255, this should not change between Python versions. + for mtime in (0, 42): + with self.subTest(mtime=mtime): + compress = gzip.compress(data1, compresslevel=1, mtime=mtime) + self.assertEqual( + struct.unpack("", "single") self.assertRaises(SyntaxError, shouldRaiseSyntaxError, codestr) - # TODO: RUSTPYTHON - @unittest.expectedFailure def testSyntaxErrorForFunctionDefinition(self): self.assertRaisesSyntaxError("def f(p, *):\n pass\n") self.assertRaisesSyntaxError("def f(p1, *, p1=100):\n pass\n") diff --git a/Lib/test/test_linecache.py b/Lib/test/test_linecache.py index 706daf65be..e23e1cc942 100644 --- a/Lib/test/test_linecache.py +++ b/Lib/test/test_linecache.py @@ -5,8 +5,10 @@ import os.path import tempfile import tokenize +from importlib.machinery import ModuleSpec from test import support from test.support import os_helper +from test.support.script_helper import assert_python_ok FILENAME = linecache.__file__ @@ -82,6 +84,10 @@ def test_getlines(self): class EmptyFile(GetLineTestsGoodData, unittest.TestCase): file_list = [] + def test_getlines(self): + lines = linecache.getlines(self.file_name) + self.assertEqual(lines, ['\n']) + class SingleEmptyLine(GetLineTestsGoodData, unittest.TestCase): file_list = ['\n'] @@ -97,6 +103,16 @@ class BadUnicode_WithDeclaration(GetLineTestsBadData, unittest.TestCase): file_byte_string = b'# coding=utf-8\n\x80abc' +class FakeLoader: + def get_source(self, fullname): + return f'source for {fullname}' + + +class NoSourceLoader: + def get_source(self, fullname): + return None + + class LineCacheTests(unittest.TestCase): def test_getline(self): @@ -187,8 +203,6 @@ def test_lazycache_no_globals(self): self.assertEqual(False, linecache.lazycache(FILENAME, None)) self.assertEqual(lines, linecache.getlines(FILENAME)) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_lazycache_smoke(self): lines = linecache.getlines(NONEXISTENT_FILENAME, globals()) linecache.clearcache() @@ -199,8 +213,6 @@ def test_lazycache_smoke(self): # globals: this would error if the lazy value wasn't resolved. self.assertEqual(lines, linecache.getlines(NONEXISTENT_FILENAME)) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_lazycache_provide_after_failed_lookup(self): linecache.clearcache() lines = linecache.getlines(NONEXISTENT_FILENAME, globals()) @@ -219,8 +231,6 @@ def test_lazycache_bad_filename(self): self.assertEqual(False, linecache.lazycache('', globals())) self.assertEqual(False, linecache.lazycache('', globals())) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_lazycache_already_cached(self): linecache.clearcache() lines = linecache.getlines(NONEXISTENT_FILENAME, globals()) @@ -244,6 +254,70 @@ def raise_memoryerror(*args, **kwargs): self.assertEqual(lines3, []) self.assertEqual(linecache.getlines(FILENAME), lines) + def test_loader(self): + filename = 'scheme://path' + + for loader in (None, object(), NoSourceLoader()): + linecache.clearcache() + module_globals = {'__name__': 'a.b.c', '__loader__': loader} + self.assertEqual(linecache.getlines(filename, module_globals), []) + + linecache.clearcache() + module_globals = {'__name__': 'a.b.c', '__loader__': FakeLoader()} + self.assertEqual(linecache.getlines(filename, module_globals), + ['source for a.b.c\n']) + + for spec in (None, object(), ModuleSpec('', FakeLoader())): + linecache.clearcache() + module_globals = {'__name__': 'a.b.c', '__loader__': FakeLoader(), + '__spec__': spec} + self.assertEqual(linecache.getlines(filename, module_globals), + ['source for a.b.c\n']) + + linecache.clearcache() + spec = ModuleSpec('x.y.z', FakeLoader()) + module_globals = {'__name__': 'a.b.c', '__loader__': spec.loader, + '__spec__': spec} + self.assertEqual(linecache.getlines(filename, module_globals), + ['source for x.y.z\n']) + + def test_invalid_names(self): + for name, desc in [ + ('\x00', 'NUL bytes filename'), + (__file__ + '\x00', 'filename with embedded NUL bytes'), + # A filename with surrogate codes. A UnicodeEncodeError is raised + # by os.stat() upon querying, which is a subclass of ValueError. + ("\uD834\uDD1E.py", 'surrogate codes (MUSICAL SYMBOL G CLEF)'), + # For POSIX platforms, an OSError will be raised but for Windows + # platforms, a ValueError is raised due to the path_t converter. + # See: https://github.com/python/cpython/issues/122170 + ('a' * 1_000_000, 'very long filename'), + ]: + with self.subTest(f'updatecache: {desc}'): + linecache.clearcache() + lines = linecache.updatecache(name) + self.assertListEqual(lines, []) + self.assertNotIn(name, linecache.cache) + + # hack into the cache (it shouldn't be allowed + # but we never know what people do...) + for key, fullname in [(name, 'ok'), ('key', name), (name, name)]: + with self.subTest(f'checkcache: {desc}', + key=key, fullname=fullname): + linecache.clearcache() + linecache.cache[key] = (0, 1234, [], fullname) + linecache.checkcache(key) + self.assertNotIn(key, linecache.cache) + + # just to be sure that we did not mess with cache + linecache.clearcache() + + def test_linecache_python_string(self): + cmdline = "import linecache;assert len(linecache.cache) == 0" + retcode, stdout, stderr = assert_python_ok('-c', cmdline) + self.assertEqual(retcode, 0) + self.assertEqual(stdout, b'') + self.assertEqual(stderr, b'') class LineCacheInvalidationTests(unittest.TestCase): def setUp(self): diff --git a/Lib/test/test_list.py b/Lib/test/test_list.py index 575a77db0b..c82bf5067d 100644 --- a/Lib/test/test_list.py +++ b/Lib/test/test_list.py @@ -22,6 +22,8 @@ def test_basic(self): if sys.maxsize == 0x7fffffff: # This test can currently only work on 32-bit machines. + # XXX If/when PySequence_Length() returns a ssize_t, it should be + # XXX re-enabled. # Verify clearing of bug #556025. # This assumes that the max data size (sys.maxint) == max # address size this also assumes that the address size is at @@ -97,7 +99,7 @@ def imul(a, b): a *= b self.assertRaises((MemoryError, OverflowError), imul, lst, n) # TODO: RUSTPYTHON - @unittest.expectedFailure + @unittest.skip("Crashes on windows debug build") def test_list_resize_overflow(self): # gh-97616: test new_allocated * sizeof(PyObject*) overflow # check in list_resize() @@ -105,7 +107,7 @@ def test_list_resize_overflow(self): del lst[1:] self.assertEqual(len(lst), 1) - size = ((2 ** (tuple.__itemsize__ * 8) - 1) // 2) + size = sys.maxsize with self.assertRaises((MemoryError, OverflowError)): lst * size with self.assertRaises((MemoryError, OverflowError)): @@ -117,7 +119,7 @@ def check(n): l = [0] * n s = repr(l) self.assertEqual(s, - '[' + ', '.join(['0'] * n) + ']') + '[' + ', '.join(['0'] * n) + ']') check(10) # check our checking code check(1000000) @@ -206,6 +208,7 @@ class L(list): pass with self.assertRaises(TypeError): (3,) + L([1,2]) + # TODO: RUSTPYTHON @unittest.skip("TODO: RUSTPYTHON; hang") def test_equal_operator_modifying_operand(self): # test fix for seg fault reported in bpo-38588 part 2. @@ -232,6 +235,33 @@ def __eq__(self, other): list4 = [1] self.assertFalse(list3 == list4) + # TODO: RUSTPYTHON + @unittest.skip("TODO: RUSTPYTHON; hang") + def test_lt_operator_modifying_operand(self): + # See gh-120298 + class evil: + def __lt__(self, other): + other.clear() + return NotImplemented + + a = [[evil()]] + with self.assertRaises(TypeError): + a[0] < a + + def test_list_index_modifing_operand(self): + # See gh-120384 + class evil: + def __init__(self, lst): + self.lst = lst + def __iter__(self): + yield from self.lst + self.lst.clear() + + lst = list(range(5)) + operand = evil(lst) + with self.assertRaises(ValueError): + lst[::-1] = operand + @cpython_only def test_preallocation(self): iterable = [0] * 10 diff --git a/Lib/test/test_listcomps.py b/Lib/test/test_listcomps.py index 91bf2547ed..ad1c5053a3 100644 --- a/Lib/test/test_listcomps.py +++ b/Lib/test/test_listcomps.py @@ -1,6 +1,11 @@ import doctest +import textwrap +import traceback +import types import unittest +from test.support import BrokenIter + doctests = """ ########### Tests borrowed from or inspired by test_genexps.py ############ @@ -87,65 +92,661 @@ >>> [None for i in range(10)] [None, None, None, None, None, None, None, None, None, None] -########### Tests for various scoping corner cases ############ - -Return lambdas that use the iteration variable as a default argument - - >>> items = [(lambda i=i: i) for i in range(5)] - >>> [x() for x in items] - [0, 1, 2, 3, 4] - -Same again, only this time as a closure variable - - >>> items = [(lambda: i) for i in range(5)] - >>> [x() for x in items] - [4, 4, 4, 4, 4] - -Another way to test that the iteration variable is local to the list comp - - >>> items = [(lambda: i) for i in range(5)] - >>> i = 20 - >>> [x() for x in items] - [4, 4, 4, 4, 4] - -And confirm that a closure can jump over the list comp scope - - >>> items = [(lambda: y) for i in range(5)] - >>> y = 2 - >>> [x() for x in items] - [2, 2, 2, 2, 2] - -We also repeat each of the above scoping tests inside a function - - >>> def test_func(): - ... items = [(lambda i=i: i) for i in range(5)] - ... return [x() for x in items] - >>> test_func() - [0, 1, 2, 3, 4] - - >>> def test_func(): - ... items = [(lambda: i) for i in range(5)] - ... return [x() for x in items] - >>> test_func() - [4, 4, 4, 4, 4] - - >>> def test_func(): - ... items = [(lambda: i) for i in range(5)] - ... i = 20 - ... return [x() for x in items] - >>> test_func() - [4, 4, 4, 4, 4] - - >>> def test_func(): - ... items = [(lambda: y) for i in range(5)] - ... y = 2 - ... return [x() for x in items] - >>> test_func() - [2, 2, 2, 2, 2] - """ +class ListComprehensionTest(unittest.TestCase): + def _check_in_scopes(self, code, outputs=None, ns=None, scopes=None, raises=(), + exec_func=exec): + code = textwrap.dedent(code) + scopes = scopes or ["module", "class", "function"] + for scope in scopes: + with self.subTest(scope=scope): + if scope == "class": + newcode = textwrap.dedent(""" + class _C: + {code} + """).format(code=textwrap.indent(code, " ")) + def get_output(moddict, name): + return getattr(moddict["_C"], name) + elif scope == "function": + newcode = textwrap.dedent(""" + def _f(): + {code} + return locals() + _out = _f() + """).format(code=textwrap.indent(code, " ")) + def get_output(moddict, name): + return moddict["_out"][name] + else: + newcode = code + def get_output(moddict, name): + return moddict[name] + newns = ns.copy() if ns else {} + try: + exec_func(newcode, newns) + except raises as e: + # We care about e.g. NameError vs UnboundLocalError + self.assertIs(type(e), raises) + else: + for k, v in (outputs or {}).items(): + self.assertEqual(get_output(newns, k), v, k) + + def test_lambdas_with_iteration_var_as_default(self): + code = """ + items = [(lambda i=i: i) for i in range(5)] + y = [x() for x in items] + """ + outputs = {"y": [0, 1, 2, 3, 4]} + self._check_in_scopes(code, outputs) + + def test_lambdas_with_free_var(self): + code = """ + items = [(lambda: i) for i in range(5)] + y = [x() for x in items] + """ + outputs = {"y": [4, 4, 4, 4, 4]} + self._check_in_scopes(code, outputs) + + def test_class_scope_free_var_with_class_cell(self): + class C: + def method(self): + super() + return __class__ + items = [(lambda: i) for i in range(5)] + y = [x() for x in items] + + self.assertEqual(C.y, [4, 4, 4, 4, 4]) + self.assertIs(C().method(), C) + + def test_references_super(self): + code = """ + res = [super for x in [1]] + """ + self._check_in_scopes(code, outputs={"res": [super]}) + + def test_references___class__(self): + code = """ + res = [__class__ for x in [1]] + """ + self._check_in_scopes(code, raises=NameError) + + def test_references___class___defined(self): + code = """ + __class__ = 2 + res = [__class__ for x in [1]] + """ + self._check_in_scopes( + code, outputs={"res": [2]}, scopes=["module", "function"]) + self._check_in_scopes(code, raises=NameError, scopes=["class"]) + + def test_references___class___enclosing(self): + code = """ + __class__ = 2 + class C: + res = [__class__ for x in [1]] + res = C.res + """ + self._check_in_scopes(code, raises=NameError) + + def test_super_and_class_cell_in_sibling_comps(self): + code = """ + [super for _ in [1]] + [__class__ for _ in [1]] + """ + self._check_in_scopes(code, raises=NameError) + + def test_inner_cell_shadows_outer(self): + code = """ + items = [(lambda: i) for i in range(5)] + i = 20 + y = [x() for x in items] + """ + outputs = {"y": [4, 4, 4, 4, 4], "i": 20} + self._check_in_scopes(code, outputs) + + def test_inner_cell_shadows_outer_no_store(self): + code = """ + def f(x): + return [lambda: x for x in range(x)], x + fns, x = f(2) + y = [fn() for fn in fns] + """ + outputs = {"y": [1, 1], "x": 2} + self._check_in_scopes(code, outputs) + + def test_closure_can_jump_over_comp_scope(self): + code = """ + items = [(lambda: y) for i in range(5)] + y = 2 + z = [x() for x in items] + """ + outputs = {"z": [2, 2, 2, 2, 2]} + self._check_in_scopes(code, outputs, scopes=["module", "function"]) + + def test_cell_inner_free_outer(self): + code = """ + def f(): + return [lambda: x for x in (x, [1])[1]] + x = ... + y = [fn() for fn in f()] + """ + outputs = {"y": [1]} + self._check_in_scopes(code, outputs, scopes=["module", "function"]) + + def test_free_inner_cell_outer(self): + code = """ + g = 2 + def f(): + return g + y = [g for x in [1]] + """ + outputs = {"y": [2]} + self._check_in_scopes(code, outputs, scopes=["module", "function"]) + self._check_in_scopes(code, scopes=["class"], raises=NameError) + + def test_inner_cell_shadows_outer_redefined(self): + code = """ + y = 10 + items = [(lambda: y) for y in range(5)] + x = y + y = 20 + out = [z() for z in items] + """ + outputs = {"x": 10, "out": [4, 4, 4, 4, 4]} + self._check_in_scopes(code, outputs) + + def test_shadows_outer_cell(self): + code = """ + def inner(): + return g + [g for g in range(5)] + x = inner() + """ + outputs = {"x": -1} + self._check_in_scopes(code, outputs, ns={"g": -1}) + + def test_explicit_global(self): + code = """ + global g + x = g + g = 2 + items = [g for g in [1]] + y = g + """ + outputs = {"x": 1, "y": 2, "items": [1]} + self._check_in_scopes(code, outputs, ns={"g": 1}) + + def test_explicit_global_2(self): + code = """ + global g + x = g + g = 2 + items = [g for x in [1]] + y = g + """ + outputs = {"x": 1, "y": 2, "items": [2]} + self._check_in_scopes(code, outputs, ns={"g": 1}) + + def test_explicit_global_3(self): + code = """ + global g + fns = [lambda: g for g in [2]] + items = [fn() for fn in fns] + """ + outputs = {"items": [2]} + self._check_in_scopes(code, outputs, ns={"g": 1}) + + def test_assignment_expression(self): + code = """ + x = -1 + items = [(x:=y) for y in range(3)] + """ + outputs = {"x": 2} + # assignment expression in comprehension is disallowed in class scope + self._check_in_scopes(code, outputs, scopes=["module", "function"]) + + def test_free_var_in_comp_child(self): + code = """ + lst = range(3) + funcs = [lambda: x for x in lst] + inc = [x + 1 for x in lst] + [x for x in inc] + x = funcs[0]() + """ + outputs = {"x": 2} + self._check_in_scopes(code, outputs) + + def test_shadow_with_free_and_local(self): + code = """ + lst = range(3) + x = -1 + funcs = [lambda: x for x in lst] + items = [x + 1 for x in lst] + """ + outputs = {"x": -1} + self._check_in_scopes(code, outputs) + + def test_shadow_comp_iterable_name(self): + code = """ + x = [1] + y = [x for x in x] + """ + outputs = {"x": [1]} + self._check_in_scopes(code, outputs) + + def test_nested_free(self): + code = """ + x = 1 + def g(): + [x for x in range(3)] + return x + g() + """ + outputs = {"x": 1} + self._check_in_scopes(code, outputs, scopes=["module", "function"]) + + def test_introspecting_frame_locals(self): + code = """ + import sys + [i for i in range(2)] + i = 20 + sys._getframe().f_locals + """ + outputs = {"i": 20} + self._check_in_scopes(code, outputs) + + def test_nested(self): + code = """ + l = [2, 3] + y = [[x ** 2 for x in range(x)] for x in l] + """ + outputs = {"y": [[0, 1], [0, 1, 4]]} + self._check_in_scopes(code, outputs) + + def test_nested_2(self): + code = """ + l = [1, 2, 3] + x = 3 + y = [x for [x ** x for x in range(x)][x - 1] in l] + """ + outputs = {"y": [3, 3, 3]} + self._check_in_scopes(code, outputs, scopes=["module", "function"]) + self._check_in_scopes(code, scopes=["class"], raises=NameError) + + def test_nested_3(self): + code = """ + l = [(1, 2), (3, 4), (5, 6)] + y = [x for (x, [x ** x for x in range(x)][x - 1]) in l] + """ + outputs = {"y": [1, 3, 5]} + self._check_in_scopes(code, outputs) + + def test_nested_4(self): + code = """ + items = [([lambda: x for x in range(2)], lambda: x) for x in range(3)] + out = [([fn() for fn in fns], fn()) for fns, fn in items] + """ + outputs = {"out": [([1, 1], 2), ([1, 1], 2), ([1, 1], 2)]} + self._check_in_scopes(code, outputs) + + def test_nameerror(self): + code = """ + [x for x in [1]] + x + """ + + self._check_in_scopes(code, raises=NameError) + + def test_dunder_name(self): + code = """ + y = [__x for __x in [1]] + """ + outputs = {"y": [1]} + self._check_in_scopes(code, outputs) + + def test_unbound_local_after_comprehension(self): + def f(): + if False: + x = 0 + [x for x in [1]] + return x + + with self.assertRaises(UnboundLocalError): + f() + + def test_unbound_local_inside_comprehension(self): + def f(): + l = [None] + return [1 for (l[0], l) in [[1, 2]]] + + with self.assertRaises(UnboundLocalError): + f() + + def test_global_outside_cellvar_inside_plus_freevar(self): + code = """ + a = 1 + def f(): + func, = [(lambda: b) for b in [a]] + return b, func() + x = f() + """ + self._check_in_scopes( + code, {"x": (2, 1)}, ns={"b": 2}, scopes=["function", "module"]) + # inside a class, the `a = 1` assignment is not visible + self._check_in_scopes(code, raises=NameError, scopes=["class"]) + + def test_cell_in_nested_comprehension(self): + code = """ + a = 1 + def f(): + (func, inner_b), = [[lambda: b for b in c] + [b] for c in [[a]]] + return b, inner_b, func() + x = f() + """ + self._check_in_scopes( + code, {"x": (2, 2, 1)}, ns={"b": 2}, scopes=["function", "module"]) + # inside a class, the `a = 1` assignment is not visible + self._check_in_scopes(code, raises=NameError, scopes=["class"]) + + def test_name_error_in_class_scope(self): + code = """ + y = 1 + [x + y for x in range(2)] + """ + self._check_in_scopes(code, raises=NameError, scopes=["class"]) + + def test_global_in_class_scope(self): + code = """ + y = 2 + vals = [(x, y) for x in range(2)] + """ + outputs = {"vals": [(0, 1), (1, 1)]} + self._check_in_scopes(code, outputs, ns={"y": 1}, scopes=["class"]) + + def test_in_class_scope_inside_function_1(self): + code = """ + class C: + y = 2 + vals = [(x, y) for x in range(2)] + vals = C.vals + """ + outputs = {"vals": [(0, 1), (1, 1)]} + self._check_in_scopes(code, outputs, ns={"y": 1}, scopes=["function"]) + + def test_in_class_scope_inside_function_2(self): + code = """ + y = 1 + class C: + y = 2 + vals = [(x, y) for x in range(2)] + vals = C.vals + """ + outputs = {"vals": [(0, 1), (1, 1)]} + self._check_in_scopes(code, outputs, scopes=["function"]) + + def test_in_class_scope_with_global(self): + code = """ + y = 1 + class C: + global y + y = 2 + # Ensure the listcomp uses the global, not the value in the + # class namespace + locals()['y'] = 3 + vals = [(x, y) for x in range(2)] + vals = C.vals + """ + outputs = {"vals": [(0, 2), (1, 2)]} + self._check_in_scopes(code, outputs, scopes=["module", "class"]) + outputs = {"vals": [(0, 1), (1, 1)]} + self._check_in_scopes(code, outputs, scopes=["function"]) + + def test_in_class_scope_with_nonlocal(self): + code = """ + y = 1 + class C: + nonlocal y + y = 2 + # Ensure the listcomp uses the global, not the value in the + # class namespace + locals()['y'] = 3 + vals = [(x, y) for x in range(2)] + vals = C.vals + """ + outputs = {"vals": [(0, 2), (1, 2)]} + self._check_in_scopes(code, outputs, scopes=["function"]) + + def test_nested_has_free_var(self): + code = """ + items = [a for a in [1] if [a for _ in [0]]] + """ + outputs = {"items": [1]} + self._check_in_scopes(code, outputs, scopes=["class"]) + + def test_nested_free_var_not_bound_in_outer_comp(self): + code = """ + z = 1 + items = [a for a in [1] if [x for x in [1] if z]] + """ + self._check_in_scopes(code, {"items": [1]}, scopes=["module", "function"]) + self._check_in_scopes(code, {"items": []}, ns={"z": 0}, scopes=["class"]) + + def test_nested_free_var_in_iter(self): + code = """ + items = [_C for _C in [1] for [0, 1][[x for x in [1] if _C][0]] in [2]] + """ + self._check_in_scopes(code, {"items": [1]}) + + def test_nested_free_var_in_expr(self): + code = """ + items = [(_C, [x for x in [1] if _C]) for _C in [0, 1]] + """ + self._check_in_scopes(code, {"items": [(0, []), (1, [1])]}) + + def test_nested_listcomp_in_lambda(self): + code = """ + f = [(z, lambda y: [(x, y, z) for x in [3]]) for z in [1]] + (z, func), = f + out = func(2) + """ + self._check_in_scopes(code, {"z": 1, "out": [(3, 2, 1)]}) + + def test_lambda_in_iter(self): + code = """ + (func, c), = [(a, b) for b in [1] for a in [lambda : a]] + d = func() + assert d is func + # must use "a" in this scope + e = a if False else None + """ + self._check_in_scopes(code, {"c": 1, "e": None}) + + def test_assign_to_comp_iter_var_in_outer_function(self): + code = """ + a = [1 for a in [0]] + """ + self._check_in_scopes(code, {"a": [1]}, scopes=["function"]) + + def test_no_leakage_to_locals(self): + code = """ + def b(): + [a for b in [1] for _ in []] + return b, locals() + r, s = b() + x = r is b + y = list(s.keys()) + """ + self._check_in_scopes(code, {"x": True, "y": []}, scopes=["module"]) + self._check_in_scopes(code, {"x": True, "y": ["b"]}, scopes=["function"]) + self._check_in_scopes(code, raises=NameError, scopes=["class"]) + + def test_iter_var_available_in_locals(self): + code = """ + l = [1, 2] + y = 0 + items = [locals()["x"] for x in l] + items2 = [vars()["x"] for x in l] + items3 = [("x" in dir()) for x in l] + items4 = [eval("x") for x in l] + # x is available, and does not overwrite y + [exec("y = x") for x in l] + """ + self._check_in_scopes( + code, + { + "items": [1, 2], + "items2": [1, 2], + "items3": [True, True], + "items4": [1, 2], + "y": 0 + } + ) + + def test_comp_in_try_except(self): + template = """ + value = ["ab"] + result = snapshot = None + try: + result = [{func}(value) for value in value] + except: + snapshot = value + raise + """ + # No exception. + code = template.format(func='len') + self._check_in_scopes(code, {"value": ["ab"], "result": [2], "snapshot": None}) + # Handles exception. + code = template.format(func='int') + self._check_in_scopes(code, {"value": ["ab"], "result": None, "snapshot": ["ab"]}, + raises=ValueError) + + def test_comp_in_try_finally(self): + template = """ + value = ["ab"] + result = snapshot = None + try: + result = [{func}(value) for value in value] + finally: + snapshot = value + """ + # No exception. + code = template.format(func='len') + self._check_in_scopes(code, {"value": ["ab"], "result": [2], "snapshot": ["ab"]}) + # Handles exception. + code = template.format(func='int') + self._check_in_scopes(code, {"value": ["ab"], "result": None, "snapshot": ["ab"]}, + raises=ValueError) + + def test_exception_in_post_comp_call(self): + code = """ + value = [1, None] + try: + [v for v in value].sort() + except: + pass + """ + self._check_in_scopes(code, {"value": [1, None]}) + + def test_frame_locals(self): + code = """ + val = [sys._getframe().f_locals for a in [0]][0]["a"] + """ + import sys + self._check_in_scopes(code, {"val": 0}, ns={"sys": sys}) + + def _recursive_replace(self, maybe_code): + if not isinstance(maybe_code, types.CodeType): + return maybe_code + return maybe_code.replace(co_consts=tuple( + self._recursive_replace(c) for c in maybe_code.co_consts + )) + + def _replacing_exec(self, code_string, ns): + co = compile(code_string, "", "exec") + co = self._recursive_replace(co) + exec(co, ns) + + def test_code_replace(self): + code = """ + x = 3 + [x for x in (1, 2)] + dir() + y = [x] + """ + self._check_in_scopes(code, {"y": [3], "x": 3}) + self._check_in_scopes(code, {"y": [3], "x": 3}, exec_func=self._replacing_exec) + + def test_code_replace_extended_arg(self): + num_names = 300 + assignments = "; ".join(f"x{i} = {i}" for i in range(num_names)) + name_list = ", ".join(f"x{i}" for i in range(num_names)) + expected = { + "y": list(range(num_names)), + **{f"x{i}": i for i in range(num_names)} + } + code = f""" + {assignments} + [({name_list}) for {name_list} in (range(300),)] + dir() + y = [{name_list}] + """ + self._check_in_scopes(code, expected) + self._check_in_scopes(code, expected, exec_func=self._replacing_exec) + + def test_multiple_comprehension_name_reuse(self): + code = """ + [x for x in [1]] + y = [x for _ in [1]] + """ + self._check_in_scopes(code, {"y": [3]}, ns={"x": 3}) + + code = """ + x = 2 + [x for x in [1]] + y = [x for _ in [1]] + """ + self._check_in_scopes(code, {"x": 2, "y": [3]}, ns={"x": 3}, scopes=["class"]) + self._check_in_scopes(code, {"x": 2, "y": [2]}, ns={"x": 3}, scopes=["function", "module"]) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_exception_locations(self): + # The location of an exception raised from __init__ or + # __next__ should should be the iterator expression + + def init_raises(): + try: + [x for x in BrokenIter(init_raises=True)] + except Exception as e: + return e + + def next_raises(): + try: + [x for x in BrokenIter(next_raises=True)] + except Exception as e: + return e + + def iter_raises(): + try: + [x for x in BrokenIter(iter_raises=True)] + except Exception as e: + return e + + for func, expected in [(init_raises, "BrokenIter(init_raises=True)"), + (next_raises, "BrokenIter(next_raises=True)"), + (iter_raises, "BrokenIter(iter_raises=True)"), + ]: + with self.subTest(func): + exc = func() + f = traceback.extract_tb(exc.__traceback__)[0] + indent = 16 + co = func.__code__ + self.assertEqual(f.lineno, co.co_firstlineno + 2) + self.assertEqual(f.end_lineno, co.co_firstlineno + 2) + self.assertEqual(f.line[f.colno - indent : f.end_colno - indent], + expected) + __test__ = {'doctests' : doctests} def load_tests(loader, tests, pattern): diff --git a/Lib/test/test_logging.py b/Lib/test/test_logging.py new file mode 100644 index 0000000000..370685f1c6 --- /dev/null +++ b/Lib/test/test_logging.py @@ -0,0 +1,7047 @@ +# Copyright 2001-2022 by Vinay Sajip. All Rights Reserved. +# +# Permission to use, copy, modify, and distribute this software and its +# documentation for any purpose and without fee is hereby granted, +# provided that the above copyright notice appear in all copies and that +# both that copyright notice and this permission notice appear in +# supporting documentation, and that the name of Vinay Sajip +# not be used in advertising or publicity pertaining to distribution +# of the software without specific, written prior permission. +# VINAY SAJIP DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING +# ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL +# VINAY SAJIP BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR +# ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER +# IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT +# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +"""Test harness for the logging module. Run all tests. + +Copyright (C) 2001-2022 Vinay Sajip. All Rights Reserved. +""" +import logging +import logging.handlers +import logging.config + +import codecs +import configparser +import copy +import datetime +import pathlib +import pickle +import io +import itertools +import gc +import json +import os +import queue +import random +import re +import shutil +import socket +import struct +import sys +import tempfile +from test.support.script_helper import assert_python_ok, assert_python_failure +from test import support +from test.support import import_helper +from test.support import os_helper +from test.support import socket_helper +from test.support import threading_helper +from test.support import warnings_helper +from test.support import asyncore +from test.support import smtpd +from test.support.logging_helper import TestHandler +import textwrap +import threading +import asyncio +import time +import unittest +import warnings +import weakref + +from http.server import HTTPServer, BaseHTTPRequestHandler +from unittest.mock import patch +from urllib.parse import urlparse, parse_qs +from socketserver import (ThreadingUDPServer, DatagramRequestHandler, + ThreadingTCPServer, StreamRequestHandler) + +try: + import win32evtlog, win32evtlogutil, pywintypes +except ImportError: + win32evtlog = win32evtlogutil = pywintypes = None + +try: + import zlib +except ImportError: + pass + + +# gh-89363: Skip fork() test if Python is built with Address Sanitizer (ASAN) +# to work around a libasan race condition, dead lock in pthread_create(). +skip_if_asan_fork = unittest.skipIf( + support.HAVE_ASAN_FORK_BUG, + "libasan has a pthread_create() dead lock related to thread+fork") +skip_if_tsan_fork = unittest.skipIf( + support.check_sanitizer(thread=True), + "TSAN doesn't support threads after fork") + + +class BaseTest(unittest.TestCase): + + """Base class for logging tests.""" + + log_format = "%(name)s -> %(levelname)s: %(message)s" + expected_log_pat = r"^([\w.]+) -> (\w+): (\d+)$" + message_num = 0 + + def setUp(self): + """Setup the default logging stream to an internal StringIO instance, + so that we can examine log output as we want.""" + self._threading_key = threading_helper.threading_setup() + + logger_dict = logging.getLogger().manager.loggerDict + logging._acquireLock() + try: + self.saved_handlers = logging._handlers.copy() + self.saved_handler_list = logging._handlerList[:] + self.saved_loggers = saved_loggers = logger_dict.copy() + self.saved_name_to_level = logging._nameToLevel.copy() + self.saved_level_to_name = logging._levelToName.copy() + self.logger_states = logger_states = {} + for name in saved_loggers: + logger_states[name] = getattr(saved_loggers[name], + 'disabled', None) + finally: + logging._releaseLock() + + # Set two unused loggers + self.logger1 = logging.getLogger("\xab\xd7\xbb") + self.logger2 = logging.getLogger("\u013f\u00d6\u0047") + + self.root_logger = logging.getLogger("") + self.original_logging_level = self.root_logger.getEffectiveLevel() + + self.stream = io.StringIO() + self.root_logger.setLevel(logging.DEBUG) + self.root_hdlr = logging.StreamHandler(self.stream) + self.root_formatter = logging.Formatter(self.log_format) + self.root_hdlr.setFormatter(self.root_formatter) + if self.logger1.hasHandlers(): + hlist = self.logger1.handlers + self.root_logger.handlers + raise AssertionError('Unexpected handlers: %s' % hlist) + if self.logger2.hasHandlers(): + hlist = self.logger2.handlers + self.root_logger.handlers + raise AssertionError('Unexpected handlers: %s' % hlist) + self.root_logger.addHandler(self.root_hdlr) + self.assertTrue(self.logger1.hasHandlers()) + self.assertTrue(self.logger2.hasHandlers()) + + def tearDown(self): + """Remove our logging stream, and restore the original logging + level.""" + self.stream.close() + self.root_logger.removeHandler(self.root_hdlr) + while self.root_logger.handlers: + h = self.root_logger.handlers[0] + self.root_logger.removeHandler(h) + h.close() + self.root_logger.setLevel(self.original_logging_level) + logging._acquireLock() + try: + logging._levelToName.clear() + logging._levelToName.update(self.saved_level_to_name) + logging._nameToLevel.clear() + logging._nameToLevel.update(self.saved_name_to_level) + logging._handlers.clear() + logging._handlers.update(self.saved_handlers) + logging._handlerList[:] = self.saved_handler_list + manager = logging.getLogger().manager + manager.disable = 0 + loggerDict = manager.loggerDict + loggerDict.clear() + loggerDict.update(self.saved_loggers) + logger_states = self.logger_states + for name in self.logger_states: + if logger_states[name] is not None: + self.saved_loggers[name].disabled = logger_states[name] + finally: + logging._releaseLock() + + self.doCleanups() + threading_helper.threading_cleanup(*self._threading_key) + + def assert_log_lines(self, expected_values, stream=None, pat=None): + """Match the collected log lines against the regular expression + self.expected_log_pat, and compare the extracted group values to + the expected_values list of tuples.""" + stream = stream or self.stream + pat = re.compile(pat or self.expected_log_pat) + actual_lines = stream.getvalue().splitlines() + self.assertEqual(len(actual_lines), len(expected_values)) + for actual, expected in zip(actual_lines, expected_values): + match = pat.search(actual) + if not match: + self.fail("Log line does not match expected pattern:\n" + + actual) + self.assertEqual(tuple(match.groups()), expected) + s = stream.read() + if s: + self.fail("Remaining output at end of log stream:\n" + s) + + def next_message(self): + """Generate a message consisting solely of an auto-incrementing + integer.""" + self.message_num += 1 + return "%d" % self.message_num + + +class BuiltinLevelsTest(BaseTest): + """Test builtin levels and their inheritance.""" + + def test_flat(self): + # Logging levels in a flat logger namespace. + m = self.next_message + + ERR = logging.getLogger("ERR") + ERR.setLevel(logging.ERROR) + INF = logging.LoggerAdapter(logging.getLogger("INF"), {}) + INF.setLevel(logging.INFO) + DEB = logging.getLogger("DEB") + DEB.setLevel(logging.DEBUG) + + # These should log. + ERR.log(logging.CRITICAL, m()) + ERR.error(m()) + + INF.log(logging.CRITICAL, m()) + INF.error(m()) + INF.warning(m()) + INF.info(m()) + + DEB.log(logging.CRITICAL, m()) + DEB.error(m()) + DEB.warning(m()) + DEB.info(m()) + DEB.debug(m()) + + # These should not log. + ERR.warning(m()) + ERR.info(m()) + ERR.debug(m()) + + INF.debug(m()) + + self.assert_log_lines([ + ('ERR', 'CRITICAL', '1'), + ('ERR', 'ERROR', '2'), + ('INF', 'CRITICAL', '3'), + ('INF', 'ERROR', '4'), + ('INF', 'WARNING', '5'), + ('INF', 'INFO', '6'), + ('DEB', 'CRITICAL', '7'), + ('DEB', 'ERROR', '8'), + ('DEB', 'WARNING', '9'), + ('DEB', 'INFO', '10'), + ('DEB', 'DEBUG', '11'), + ]) + + def test_nested_explicit(self): + # Logging levels in a nested namespace, all explicitly set. + m = self.next_message + + INF = logging.getLogger("INF") + INF.setLevel(logging.INFO) + INF_ERR = logging.getLogger("INF.ERR") + INF_ERR.setLevel(logging.ERROR) + + # These should log. + INF_ERR.log(logging.CRITICAL, m()) + INF_ERR.error(m()) + + # These should not log. + INF_ERR.warning(m()) + INF_ERR.info(m()) + INF_ERR.debug(m()) + + self.assert_log_lines([ + ('INF.ERR', 'CRITICAL', '1'), + ('INF.ERR', 'ERROR', '2'), + ]) + + def test_nested_inherited(self): + # Logging levels in a nested namespace, inherited from parent loggers. + m = self.next_message + + INF = logging.getLogger("INF") + INF.setLevel(logging.INFO) + INF_ERR = logging.getLogger("INF.ERR") + INF_ERR.setLevel(logging.ERROR) + INF_UNDEF = logging.getLogger("INF.UNDEF") + INF_ERR_UNDEF = logging.getLogger("INF.ERR.UNDEF") + UNDEF = logging.getLogger("UNDEF") + + # These should log. + INF_UNDEF.log(logging.CRITICAL, m()) + INF_UNDEF.error(m()) + INF_UNDEF.warning(m()) + INF_UNDEF.info(m()) + INF_ERR_UNDEF.log(logging.CRITICAL, m()) + INF_ERR_UNDEF.error(m()) + + # These should not log. + INF_UNDEF.debug(m()) + INF_ERR_UNDEF.warning(m()) + INF_ERR_UNDEF.info(m()) + INF_ERR_UNDEF.debug(m()) + + self.assert_log_lines([ + ('INF.UNDEF', 'CRITICAL', '1'), + ('INF.UNDEF', 'ERROR', '2'), + ('INF.UNDEF', 'WARNING', '3'), + ('INF.UNDEF', 'INFO', '4'), + ('INF.ERR.UNDEF', 'CRITICAL', '5'), + ('INF.ERR.UNDEF', 'ERROR', '6'), + ]) + + def test_nested_with_virtual_parent(self): + # Logging levels when some parent does not exist yet. + m = self.next_message + + INF = logging.getLogger("INF") + GRANDCHILD = logging.getLogger("INF.BADPARENT.UNDEF") + CHILD = logging.getLogger("INF.BADPARENT") + INF.setLevel(logging.INFO) + + # These should log. + GRANDCHILD.log(logging.FATAL, m()) + GRANDCHILD.info(m()) + CHILD.log(logging.FATAL, m()) + CHILD.info(m()) + + # These should not log. + GRANDCHILD.debug(m()) + CHILD.debug(m()) + + self.assert_log_lines([ + ('INF.BADPARENT.UNDEF', 'CRITICAL', '1'), + ('INF.BADPARENT.UNDEF', 'INFO', '2'), + ('INF.BADPARENT', 'CRITICAL', '3'), + ('INF.BADPARENT', 'INFO', '4'), + ]) + + def test_regression_22386(self): + """See issue #22386 for more information.""" + self.assertEqual(logging.getLevelName('INFO'), logging.INFO) + self.assertEqual(logging.getLevelName(logging.INFO), 'INFO') + + def test_issue27935(self): + fatal = logging.getLevelName('FATAL') + self.assertEqual(fatal, logging.FATAL) + + def test_regression_29220(self): + """See issue #29220 for more information.""" + logging.addLevelName(logging.INFO, '') + self.addCleanup(logging.addLevelName, logging.INFO, 'INFO') + self.assertEqual(logging.getLevelName(logging.INFO), '') + self.assertEqual(logging.getLevelName(logging.NOTSET), 'NOTSET') + self.assertEqual(logging.getLevelName('NOTSET'), logging.NOTSET) + +class BasicFilterTest(BaseTest): + + """Test the bundled Filter class.""" + + def test_filter(self): + # Only messages satisfying the specified criteria pass through the + # filter. + filter_ = logging.Filter("spam.eggs") + handler = self.root_logger.handlers[0] + try: + handler.addFilter(filter_) + spam = logging.getLogger("spam") + spam_eggs = logging.getLogger("spam.eggs") + spam_eggs_fish = logging.getLogger("spam.eggs.fish") + spam_bakedbeans = logging.getLogger("spam.bakedbeans") + + spam.info(self.next_message()) + spam_eggs.info(self.next_message()) # Good. + spam_eggs_fish.info(self.next_message()) # Good. + spam_bakedbeans.info(self.next_message()) + + self.assert_log_lines([ + ('spam.eggs', 'INFO', '2'), + ('spam.eggs.fish', 'INFO', '3'), + ]) + finally: + handler.removeFilter(filter_) + + def test_callable_filter(self): + # Only messages satisfying the specified criteria pass through the + # filter. + + def filterfunc(record): + parts = record.name.split('.') + prefix = '.'.join(parts[:2]) + return prefix == 'spam.eggs' + + handler = self.root_logger.handlers[0] + try: + handler.addFilter(filterfunc) + spam = logging.getLogger("spam") + spam_eggs = logging.getLogger("spam.eggs") + spam_eggs_fish = logging.getLogger("spam.eggs.fish") + spam_bakedbeans = logging.getLogger("spam.bakedbeans") + + spam.info(self.next_message()) + spam_eggs.info(self.next_message()) # Good. + spam_eggs_fish.info(self.next_message()) # Good. + spam_bakedbeans.info(self.next_message()) + + self.assert_log_lines([ + ('spam.eggs', 'INFO', '2'), + ('spam.eggs.fish', 'INFO', '3'), + ]) + finally: + handler.removeFilter(filterfunc) + + def test_empty_filter(self): + f = logging.Filter() + r = logging.makeLogRecord({'name': 'spam.eggs'}) + self.assertTrue(f.filter(r)) + +# +# First, we define our levels. There can be as many as you want - the only +# limitations are that they should be integers, the lowest should be > 0 and +# larger values mean less information being logged. If you need specific +# level values which do not fit into these limitations, you can use a +# mapping dictionary to convert between your application levels and the +# logging system. +# +SILENT = 120 +TACITURN = 119 +TERSE = 118 +EFFUSIVE = 117 +SOCIABLE = 116 +VERBOSE = 115 +TALKATIVE = 114 +GARRULOUS = 113 +CHATTERBOX = 112 +BORING = 111 + +LEVEL_RANGE = range(BORING, SILENT + 1) + +# +# Next, we define names for our levels. You don't need to do this - in which +# case the system will use "Level n" to denote the text for the level. +# +my_logging_levels = { + SILENT : 'Silent', + TACITURN : 'Taciturn', + TERSE : 'Terse', + EFFUSIVE : 'Effusive', + SOCIABLE : 'Sociable', + VERBOSE : 'Verbose', + TALKATIVE : 'Talkative', + GARRULOUS : 'Garrulous', + CHATTERBOX : 'Chatterbox', + BORING : 'Boring', +} + +class GarrulousFilter(logging.Filter): + + """A filter which blocks garrulous messages.""" + + def filter(self, record): + return record.levelno != GARRULOUS + +class VerySpecificFilter(logging.Filter): + + """A filter which blocks sociable and taciturn messages.""" + + def filter(self, record): + return record.levelno not in [SOCIABLE, TACITURN] + + +class CustomLevelsAndFiltersTest(BaseTest): + + """Test various filtering possibilities with custom logging levels.""" + + # Skip the logger name group. + expected_log_pat = r"^[\w.]+ -> (\w+): (\d+)$" + + def setUp(self): + BaseTest.setUp(self) + for k, v in my_logging_levels.items(): + logging.addLevelName(k, v) + + def log_at_all_levels(self, logger): + for lvl in LEVEL_RANGE: + logger.log(lvl, self.next_message()) + + def test_handler_filter_replaces_record(self): + def replace_message(record: logging.LogRecord): + record = copy.copy(record) + record.msg = "new message!" + return record + + # Set up a logging hierarchy such that "child" and it's handler + # (and thus `replace_message()`) always get called before + # propagating up to "parent". + # Then we can confirm that `replace_message()` was able to + # replace the log record without having a side effect on + # other loggers or handlers. + parent = logging.getLogger("parent") + child = logging.getLogger("parent.child") + stream_1 = io.StringIO() + stream_2 = io.StringIO() + handler_1 = logging.StreamHandler(stream_1) + handler_2 = logging.StreamHandler(stream_2) + handler_2.addFilter(replace_message) + parent.addHandler(handler_1) + child.addHandler(handler_2) + + child.info("original message") + handler_1.flush() + handler_2.flush() + self.assertEqual(stream_1.getvalue(), "original message\n") + self.assertEqual(stream_2.getvalue(), "new message!\n") + + def test_logging_filter_replaces_record(self): + records = set() + + class RecordingFilter(logging.Filter): + def filter(self, record: logging.LogRecord): + records.add(id(record)) + return copy.copy(record) + + logger = logging.getLogger("logger") + logger.setLevel(logging.INFO) + logger.addFilter(RecordingFilter()) + logger.addFilter(RecordingFilter()) + + logger.info("msg") + + self.assertEqual(2, len(records)) + + def test_logger_filter(self): + # Filter at logger level. + self.root_logger.setLevel(VERBOSE) + # Levels >= 'Verbose' are good. + self.log_at_all_levels(self.root_logger) + self.assert_log_lines([ + ('Verbose', '5'), + ('Sociable', '6'), + ('Effusive', '7'), + ('Terse', '8'), + ('Taciturn', '9'), + ('Silent', '10'), + ]) + + def test_handler_filter(self): + # Filter at handler level. + self.root_logger.handlers[0].setLevel(SOCIABLE) + try: + # Levels >= 'Sociable' are good. + self.log_at_all_levels(self.root_logger) + self.assert_log_lines([ + ('Sociable', '6'), + ('Effusive', '7'), + ('Terse', '8'), + ('Taciturn', '9'), + ('Silent', '10'), + ]) + finally: + self.root_logger.handlers[0].setLevel(logging.NOTSET) + + def test_specific_filters(self): + # Set a specific filter object on the handler, and then add another + # filter object on the logger itself. + handler = self.root_logger.handlers[0] + specific_filter = None + garr = GarrulousFilter() + handler.addFilter(garr) + try: + self.log_at_all_levels(self.root_logger) + first_lines = [ + # Notice how 'Garrulous' is missing + ('Boring', '1'), + ('Chatterbox', '2'), + ('Talkative', '4'), + ('Verbose', '5'), + ('Sociable', '6'), + ('Effusive', '7'), + ('Terse', '8'), + ('Taciturn', '9'), + ('Silent', '10'), + ] + self.assert_log_lines(first_lines) + + specific_filter = VerySpecificFilter() + self.root_logger.addFilter(specific_filter) + self.log_at_all_levels(self.root_logger) + self.assert_log_lines(first_lines + [ + # Not only 'Garrulous' is still missing, but also 'Sociable' + # and 'Taciturn' + ('Boring', '11'), + ('Chatterbox', '12'), + ('Talkative', '14'), + ('Verbose', '15'), + ('Effusive', '17'), + ('Terse', '18'), + ('Silent', '20'), + ]) + finally: + if specific_filter: + self.root_logger.removeFilter(specific_filter) + handler.removeFilter(garr) + + +def make_temp_file(*args, **kwargs): + fd, fn = tempfile.mkstemp(*args, **kwargs) + os.close(fd) + return fn + + +class HandlerTest(BaseTest): + def test_name(self): + h = logging.Handler() + h.name = 'generic' + self.assertEqual(h.name, 'generic') + h.name = 'anothergeneric' + self.assertEqual(h.name, 'anothergeneric') + self.assertRaises(NotImplementedError, h.emit, None) + + def test_builtin_handlers(self): + # We can't actually *use* too many handlers in the tests, + # but we can try instantiating them with various options + if sys.platform in ('linux', 'darwin'): + for existing in (True, False): + fn = make_temp_file() + if not existing: + os.unlink(fn) + h = logging.handlers.WatchedFileHandler(fn, encoding='utf-8', delay=True) + if existing: + dev, ino = h.dev, h.ino + self.assertEqual(dev, -1) + self.assertEqual(ino, -1) + r = logging.makeLogRecord({'msg': 'Test'}) + h.handle(r) + # Now remove the file. + os.unlink(fn) + self.assertFalse(os.path.exists(fn)) + # The next call should recreate the file. + h.handle(r) + self.assertTrue(os.path.exists(fn)) + else: + self.assertEqual(h.dev, -1) + self.assertEqual(h.ino, -1) + h.close() + if existing: + os.unlink(fn) + if sys.platform == 'darwin': + sockname = '/var/run/syslog' + else: + sockname = '/dev/log' + try: + h = logging.handlers.SysLogHandler(sockname) + self.assertEqual(h.facility, h.LOG_USER) + self.assertTrue(h.unixsocket) + h.close() + except OSError: # syslogd might not be available + pass + for method in ('GET', 'POST', 'PUT'): + if method == 'PUT': + self.assertRaises(ValueError, logging.handlers.HTTPHandler, + 'localhost', '/log', method) + else: + h = logging.handlers.HTTPHandler('localhost', '/log', method) + h.close() + h = logging.handlers.BufferingHandler(0) + r = logging.makeLogRecord({}) + self.assertTrue(h.shouldFlush(r)) + h.close() + h = logging.handlers.BufferingHandler(1) + self.assertFalse(h.shouldFlush(r)) + h.close() + + def test_pathlike_objects(self): + """ + Test that path-like objects are accepted as filename arguments to handlers. + + See Issue #27493. + """ + fn = make_temp_file() + os.unlink(fn) + pfn = os_helper.FakePath(fn) + cases = ( + (logging.FileHandler, (pfn, 'w')), + (logging.handlers.RotatingFileHandler, (pfn, 'a')), + (logging.handlers.TimedRotatingFileHandler, (pfn, 'h')), + ) + if sys.platform in ('linux', 'darwin'): + cases += ((logging.handlers.WatchedFileHandler, (pfn, 'w')),) + for cls, args in cases: + h = cls(*args, encoding="utf-8") + self.assertTrue(os.path.exists(fn)) + h.close() + os.unlink(fn) + + @unittest.skipIf(os.name == 'nt', 'WatchedFileHandler not appropriate for Windows.') + @unittest.skipIf( + support.is_emscripten, "Emscripten cannot fstat unlinked files." + ) + @threading_helper.requires_working_threading() + @support.requires_resource('walltime') + def test_race(self): + # Issue #14632 refers. + def remove_loop(fname, tries): + for _ in range(tries): + try: + os.unlink(fname) + self.deletion_time = time.time() + except OSError: + pass + time.sleep(0.004 * random.randint(0, 4)) + + del_count = 500 + log_count = 500 + + self.handle_time = None + self.deletion_time = None + + for delay in (False, True): + fn = make_temp_file('.log', 'test_logging-3-') + remover = threading.Thread(target=remove_loop, args=(fn, del_count)) + remover.daemon = True + remover.start() + h = logging.handlers.WatchedFileHandler(fn, encoding='utf-8', delay=delay) + f = logging.Formatter('%(asctime)s: %(levelname)s: %(message)s') + h.setFormatter(f) + try: + for _ in range(log_count): + time.sleep(0.005) + r = logging.makeLogRecord({'msg': 'testing' }) + try: + self.handle_time = time.time() + h.handle(r) + except Exception: + print('Deleted at %s, ' + 'opened at %s' % (self.deletion_time, + self.handle_time)) + raise + finally: + remover.join() + h.close() + if os.path.exists(fn): + os.unlink(fn) + + # The implementation relies on os.register_at_fork existing, but we test + # based on os.fork existing because that is what users and this test use. + # This helps ensure that when fork exists (the important concept) that the + # register_at_fork mechanism is also present and used. + @support.requires_fork() + @threading_helper.requires_working_threading() + @skip_if_asan_fork + @skip_if_tsan_fork + def test_post_fork_child_no_deadlock(self): + """Ensure child logging locks are not held; bpo-6721 & bpo-36533.""" + class _OurHandler(logging.Handler): + def __init__(self): + super().__init__() + self.sub_handler = logging.StreamHandler( + stream=open('/dev/null', 'wt', encoding='utf-8')) + + def emit(self, record): + self.sub_handler.acquire() + try: + self.sub_handler.emit(record) + finally: + self.sub_handler.release() + + self.assertEqual(len(logging._handlers), 0) + refed_h = _OurHandler() + self.addCleanup(refed_h.sub_handler.stream.close) + refed_h.name = 'because we need at least one for this test' + self.assertGreater(len(logging._handlers), 0) + self.assertGreater(len(logging._at_fork_reinit_lock_weakset), 1) + test_logger = logging.getLogger('test_post_fork_child_no_deadlock') + test_logger.addHandler(refed_h) + test_logger.setLevel(logging.DEBUG) + + locks_held__ready_to_fork = threading.Event() + fork_happened__release_locks_and_end_thread = threading.Event() + + def lock_holder_thread_fn(): + logging._acquireLock() + try: + refed_h.acquire() + try: + # Tell the main thread to do the fork. + locks_held__ready_to_fork.set() + + # If the deadlock bug exists, the fork will happen + # without dealing with the locks we hold, deadlocking + # the child. + + # Wait for a successful fork or an unreasonable amount of + # time before releasing our locks. To avoid a timing based + # test we'd need communication from os.fork() as to when it + # has actually happened. Given this is a regression test + # for a fixed issue, potentially less reliably detecting + # regression via timing is acceptable for simplicity. + # The test will always take at least this long. :( + fork_happened__release_locks_and_end_thread.wait(0.5) + finally: + refed_h.release() + finally: + logging._releaseLock() + + lock_holder_thread = threading.Thread( + target=lock_holder_thread_fn, + name='test_post_fork_child_no_deadlock lock holder') + lock_holder_thread.start() + + locks_held__ready_to_fork.wait() + pid = os.fork() + if pid == 0: + # Child process + try: + test_logger.info(r'Child process did not deadlock. \o/') + finally: + os._exit(0) + else: + # Parent process + test_logger.info(r'Parent process returned from fork. \o/') + fork_happened__release_locks_and_end_thread.set() + lock_holder_thread.join() + + support.wait_process(pid, exitcode=0) + + +class BadStream(object): + def write(self, data): + raise RuntimeError('deliberate mistake') + +class TestStreamHandler(logging.StreamHandler): + def handleError(self, record): + self.error_record = record + +class StreamWithIntName(object): + level = logging.NOTSET + name = 2 + +class StreamHandlerTest(BaseTest): + def test_error_handling(self): + h = TestStreamHandler(BadStream()) + r = logging.makeLogRecord({}) + old_raise = logging.raiseExceptions + + try: + h.handle(r) + self.assertIs(h.error_record, r) + + h = logging.StreamHandler(BadStream()) + with support.captured_stderr() as stderr: + h.handle(r) + msg = '\nRuntimeError: deliberate mistake\n' + self.assertIn(msg, stderr.getvalue()) + + logging.raiseExceptions = False + with support.captured_stderr() as stderr: + h.handle(r) + self.assertEqual('', stderr.getvalue()) + finally: + logging.raiseExceptions = old_raise + + def test_stream_setting(self): + """ + Test setting the handler's stream + """ + h = logging.StreamHandler() + stream = io.StringIO() + old = h.setStream(stream) + self.assertIs(old, sys.stderr) + actual = h.setStream(old) + self.assertIs(actual, stream) + # test that setting to existing value returns None + actual = h.setStream(old) + self.assertIsNone(actual) + + def test_can_represent_stream_with_int_name(self): + h = logging.StreamHandler(StreamWithIntName()) + self.assertEqual(repr(h), '') + +# -- The following section could be moved into a server_helper.py module +# -- if it proves to be of wider utility than just test_logging + +class TestSMTPServer(smtpd.SMTPServer): + """ + This class implements a test SMTP server. + + :param addr: A (host, port) tuple which the server listens on. + You can specify a port value of zero: the server's + *port* attribute will hold the actual port number + used, which can be used in client connections. + :param handler: A callable which will be called to process + incoming messages. The handler will be passed + the client address tuple, who the message is from, + a list of recipients and the message data. + :param poll_interval: The interval, in seconds, used in the underlying + :func:`select` or :func:`poll` call by + :func:`asyncore.loop`. + :param sockmap: A dictionary which will be used to hold + :class:`asyncore.dispatcher` instances used by + :func:`asyncore.loop`. This avoids changing the + :mod:`asyncore` module's global state. + """ + + def __init__(self, addr, handler, poll_interval, sockmap): + smtpd.SMTPServer.__init__(self, addr, None, map=sockmap, + decode_data=True) + self.port = self.socket.getsockname()[1] + self._handler = handler + self._thread = None + self._quit = False + self.poll_interval = poll_interval + + def process_message(self, peer, mailfrom, rcpttos, data): + """ + Delegates to the handler passed in to the server's constructor. + + Typically, this will be a test case method. + :param peer: The client (host, port) tuple. + :param mailfrom: The address of the sender. + :param rcpttos: The addresses of the recipients. + :param data: The message. + """ + self._handler(peer, mailfrom, rcpttos, data) + + def start(self): + """ + Start the server running on a separate daemon thread. + """ + self._thread = t = threading.Thread(target=self.serve_forever, + args=(self.poll_interval,)) + t.daemon = True + t.start() + + def serve_forever(self, poll_interval): + """ + Run the :mod:`asyncore` loop until normal termination + conditions arise. + :param poll_interval: The interval, in seconds, used in the underlying + :func:`select` or :func:`poll` call by + :func:`asyncore.loop`. + """ + while not self._quit: + asyncore.loop(poll_interval, map=self._map, count=1) + + def stop(self): + """ + Stop the thread by closing the server instance. + Wait for the server thread to terminate. + """ + self._quit = True + threading_helper.join_thread(self._thread) + self._thread = None + self.close() + asyncore.close_all(map=self._map, ignore_all=True) + + +class ControlMixin(object): + """ + This mixin is used to start a server on a separate thread, and + shut it down programmatically. Request handling is simplified - instead + of needing to derive a suitable RequestHandler subclass, you just + provide a callable which will be passed each received request to be + processed. + + :param handler: A handler callable which will be called with a + single parameter - the request - in order to + process the request. This handler is called on the + server thread, effectively meaning that requests are + processed serially. While not quite web scale ;-), + this should be fine for testing applications. + :param poll_interval: The polling interval in seconds. + """ + def __init__(self, handler, poll_interval): + self._thread = None + self.poll_interval = poll_interval + self._handler = handler + self.ready = threading.Event() + + def start(self): + """ + Create a daemon thread to run the server, and start it. + """ + self._thread = t = threading.Thread(target=self.serve_forever, + args=(self.poll_interval,)) + t.daemon = True + t.start() + + def serve_forever(self, poll_interval): + """ + Run the server. Set the ready flag before entering the + service loop. + """ + self.ready.set() + super(ControlMixin, self).serve_forever(poll_interval) + + def stop(self): + """ + Tell the server thread to stop, and wait for it to do so. + """ + self.shutdown() + if self._thread is not None: + threading_helper.join_thread(self._thread) + self._thread = None + self.server_close() + self.ready.clear() + +class TestHTTPServer(ControlMixin, HTTPServer): + """ + An HTTP server which is controllable using :class:`ControlMixin`. + + :param addr: A tuple with the IP address and port to listen on. + :param handler: A handler callable which will be called with a + single parameter - the request - in order to + process the request. + :param poll_interval: The polling interval in seconds. + :param log: Pass ``True`` to enable log messages. + """ + def __init__(self, addr, handler, poll_interval=0.5, + log=False, sslctx=None): + class DelegatingHTTPRequestHandler(BaseHTTPRequestHandler): + def __getattr__(self, name, default=None): + if name.startswith('do_'): + return self.process_request + raise AttributeError(name) + + def process_request(self): + self.server._handler(self) + + def log_message(self, format, *args): + if log: + super(DelegatingHTTPRequestHandler, + self).log_message(format, *args) + HTTPServer.__init__(self, addr, DelegatingHTTPRequestHandler) + ControlMixin.__init__(self, handler, poll_interval) + self.sslctx = sslctx + + def get_request(self): + try: + sock, addr = self.socket.accept() + if self.sslctx: + sock = self.sslctx.wrap_socket(sock, server_side=True) + except OSError as e: + # socket errors are silenced by the caller, print them here + sys.stderr.write("Got an error:\n%s\n" % e) + raise + return sock, addr + +class TestTCPServer(ControlMixin, ThreadingTCPServer): + """ + A TCP server which is controllable using :class:`ControlMixin`. + + :param addr: A tuple with the IP address and port to listen on. + :param handler: A handler callable which will be called with a single + parameter - the request - in order to process the request. + :param poll_interval: The polling interval in seconds. + :bind_and_activate: If True (the default), binds the server and starts it + listening. If False, you need to call + :meth:`server_bind` and :meth:`server_activate` at + some later time before calling :meth:`start`, so that + the server will set up the socket and listen on it. + """ + + allow_reuse_address = True + + def __init__(self, addr, handler, poll_interval=0.5, + bind_and_activate=True): + class DelegatingTCPRequestHandler(StreamRequestHandler): + + def handle(self): + self.server._handler(self) + ThreadingTCPServer.__init__(self, addr, DelegatingTCPRequestHandler, + bind_and_activate) + ControlMixin.__init__(self, handler, poll_interval) + + def server_bind(self): + super(TestTCPServer, self).server_bind() + self.port = self.socket.getsockname()[1] + +class TestUDPServer(ControlMixin, ThreadingUDPServer): + """ + A UDP server which is controllable using :class:`ControlMixin`. + + :param addr: A tuple with the IP address and port to listen on. + :param handler: A handler callable which will be called with a + single parameter - the request - in order to + process the request. + :param poll_interval: The polling interval for shutdown requests, + in seconds. + :bind_and_activate: If True (the default), binds the server and + starts it listening. If False, you need to + call :meth:`server_bind` and + :meth:`server_activate` at some later time + before calling :meth:`start`, so that the server will + set up the socket and listen on it. + """ + def __init__(self, addr, handler, poll_interval=0.5, + bind_and_activate=True): + class DelegatingUDPRequestHandler(DatagramRequestHandler): + + def handle(self): + self.server._handler(self) + + def finish(self): + data = self.wfile.getvalue() + if data: + try: + super(DelegatingUDPRequestHandler, self).finish() + except OSError: + if not self.server._closed: + raise + + ThreadingUDPServer.__init__(self, addr, + DelegatingUDPRequestHandler, + bind_and_activate) + ControlMixin.__init__(self, handler, poll_interval) + self._closed = False + + def server_bind(self): + super(TestUDPServer, self).server_bind() + self.port = self.socket.getsockname()[1] + + def server_close(self): + super(TestUDPServer, self).server_close() + self._closed = True + +if hasattr(socket, "AF_UNIX"): + class TestUnixStreamServer(TestTCPServer): + address_family = socket.AF_UNIX + + class TestUnixDatagramServer(TestUDPServer): + address_family = socket.AF_UNIX + +# - end of server_helper section + +@support.requires_working_socket() +@threading_helper.requires_working_threading() +class SMTPHandlerTest(BaseTest): + # bpo-14314, bpo-19665, bpo-34092: don't wait forever + TIMEOUT = support.LONG_TIMEOUT + + # TODO: RUSTPYTHON + @unittest.skip(reason="Hangs RustPython") + def test_basic(self): + sockmap = {} + server = TestSMTPServer((socket_helper.HOST, 0), self.process_message, 0.001, + sockmap) + server.start() + addr = (socket_helper.HOST, server.port) + h = logging.handlers.SMTPHandler(addr, 'me', 'you', 'Log', + timeout=self.TIMEOUT) + self.assertEqual(h.toaddrs, ['you']) + self.messages = [] + r = logging.makeLogRecord({'msg': 'Hello \u2713'}) + self.handled = threading.Event() + h.handle(r) + self.handled.wait(self.TIMEOUT) + server.stop() + self.assertTrue(self.handled.is_set()) + self.assertEqual(len(self.messages), 1) + peer, mailfrom, rcpttos, data = self.messages[0] + self.assertEqual(mailfrom, 'me') + self.assertEqual(rcpttos, ['you']) + self.assertIn('\nSubject: Log\n', data) + self.assertTrue(data.endswith('\n\nHello \u2713')) + h.close() + + def process_message(self, *args): + self.messages.append(args) + self.handled.set() + +class MemoryHandlerTest(BaseTest): + + """Tests for the MemoryHandler.""" + + # Do not bother with a logger name group. + expected_log_pat = r"^[\w.]+ -> (\w+): (\d+)$" + + def setUp(self): + BaseTest.setUp(self) + self.mem_hdlr = logging.handlers.MemoryHandler(10, logging.WARNING, + self.root_hdlr) + self.mem_logger = logging.getLogger('mem') + self.mem_logger.propagate = 0 + self.mem_logger.addHandler(self.mem_hdlr) + + def tearDown(self): + self.mem_hdlr.close() + BaseTest.tearDown(self) + + def test_flush(self): + # The memory handler flushes to its target handler based on specific + # criteria (message count and message level). + self.mem_logger.debug(self.next_message()) + self.assert_log_lines([]) + self.mem_logger.info(self.next_message()) + self.assert_log_lines([]) + # This will flush because the level is >= logging.WARNING + self.mem_logger.warning(self.next_message()) + lines = [ + ('DEBUG', '1'), + ('INFO', '2'), + ('WARNING', '3'), + ] + self.assert_log_lines(lines) + for n in (4, 14): + for i in range(9): + self.mem_logger.debug(self.next_message()) + self.assert_log_lines(lines) + # This will flush because it's the 10th message since the last + # flush. + self.mem_logger.debug(self.next_message()) + lines = lines + [('DEBUG', str(i)) for i in range(n, n + 10)] + self.assert_log_lines(lines) + + self.mem_logger.debug(self.next_message()) + self.assert_log_lines(lines) + + def test_flush_on_close(self): + """ + Test that the flush-on-close configuration works as expected. + """ + self.mem_logger.debug(self.next_message()) + self.assert_log_lines([]) + self.mem_logger.info(self.next_message()) + self.assert_log_lines([]) + self.mem_logger.removeHandler(self.mem_hdlr) + # Default behaviour is to flush on close. Check that it happens. + self.mem_hdlr.close() + lines = [ + ('DEBUG', '1'), + ('INFO', '2'), + ] + self.assert_log_lines(lines) + # Now configure for flushing not to be done on close. + self.mem_hdlr = logging.handlers.MemoryHandler(10, logging.WARNING, + self.root_hdlr, + False) + self.mem_logger.addHandler(self.mem_hdlr) + self.mem_logger.debug(self.next_message()) + self.assert_log_lines(lines) # no change + self.mem_logger.info(self.next_message()) + self.assert_log_lines(lines) # no change + self.mem_logger.removeHandler(self.mem_hdlr) + self.mem_hdlr.close() + # assert that no new lines have been added + self.assert_log_lines(lines) # no change + + def test_shutdown_flush_on_close(self): + """ + Test that the flush-on-close configuration is respected by the + shutdown method. + """ + self.mem_logger.debug(self.next_message()) + self.assert_log_lines([]) + self.mem_logger.info(self.next_message()) + self.assert_log_lines([]) + # Default behaviour is to flush on close. Check that it happens. + logging.shutdown(handlerList=[logging.weakref.ref(self.mem_hdlr)]) + lines = [ + ('DEBUG', '1'), + ('INFO', '2'), + ] + self.assert_log_lines(lines) + # Now configure for flushing not to be done on close. + self.mem_hdlr = logging.handlers.MemoryHandler(10, logging.WARNING, + self.root_hdlr, + False) + self.mem_logger.addHandler(self.mem_hdlr) + self.mem_logger.debug(self.next_message()) + self.assert_log_lines(lines) # no change + self.mem_logger.info(self.next_message()) + self.assert_log_lines(lines) # no change + # assert that no new lines have been added after shutdown + logging.shutdown(handlerList=[logging.weakref.ref(self.mem_hdlr)]) + self.assert_log_lines(lines) # no change + + @threading_helper.requires_working_threading() + def test_race_between_set_target_and_flush(self): + class MockRaceConditionHandler: + def __init__(self, mem_hdlr): + self.mem_hdlr = mem_hdlr + self.threads = [] + + def removeTarget(self): + self.mem_hdlr.setTarget(None) + + def handle(self, msg): + thread = threading.Thread(target=self.removeTarget) + self.threads.append(thread) + thread.start() + + target = MockRaceConditionHandler(self.mem_hdlr) + try: + self.mem_hdlr.setTarget(target) + + for _ in range(10): + time.sleep(0.005) + self.mem_logger.info("not flushed") + self.mem_logger.warning("flushed") + finally: + for thread in target.threads: + threading_helper.join_thread(thread) + + +class ExceptionFormatter(logging.Formatter): + """A special exception formatter.""" + def formatException(self, ei): + return "Got a [%s]" % ei[0].__name__ + +def closeFileHandler(h, fn): + h.close() + os.remove(fn) + +class ConfigFileTest(BaseTest): + + """Reading logging config from a .ini-style config file.""" + + check_no_resource_warning = warnings_helper.check_no_resource_warning + expected_log_pat = r"^(\w+) \+\+ (\w+)$" + + # config0 is a standard configuration. + config0 = """ + [loggers] + keys=root + + [handlers] + keys=hand1 + + [formatters] + keys=form1 + + [logger_root] + level=WARNING + handlers=hand1 + + [handler_hand1] + class=StreamHandler + level=NOTSET + formatter=form1 + args=(sys.stdout,) + + [formatter_form1] + format=%(levelname)s ++ %(message)s + datefmt= + """ + + # config1 adds a little to the standard configuration. + config1 = """ + [loggers] + keys=root,parser + + [handlers] + keys=hand1 + + [formatters] + keys=form1 + + [logger_root] + level=WARNING + handlers= + + [logger_parser] + level=DEBUG + handlers=hand1 + propagate=1 + qualname=compiler.parser + + [handler_hand1] + class=StreamHandler + level=NOTSET + formatter=form1 + args=(sys.stdout,) + + [formatter_form1] + format=%(levelname)s ++ %(message)s + datefmt= + """ + + # config1a moves the handler to the root. + config1a = """ + [loggers] + keys=root,parser + + [handlers] + keys=hand1 + + [formatters] + keys=form1 + + [logger_root] + level=WARNING + handlers=hand1 + + [logger_parser] + level=DEBUG + handlers= + propagate=1 + qualname=compiler.parser + + [handler_hand1] + class=StreamHandler + level=NOTSET + formatter=form1 + args=(sys.stdout,) + + [formatter_form1] + format=%(levelname)s ++ %(message)s + datefmt= + """ + + # config2 has a subtle configuration error that should be reported + config2 = config1.replace("sys.stdout", "sys.stbout") + + # config3 has a less subtle configuration error + config3 = config1.replace("formatter=form1", "formatter=misspelled_name") + + # config4 specifies a custom formatter class to be loaded + config4 = """ + [loggers] + keys=root + + [handlers] + keys=hand1 + + [formatters] + keys=form1 + + [logger_root] + level=NOTSET + handlers=hand1 + + [handler_hand1] + class=StreamHandler + level=NOTSET + formatter=form1 + args=(sys.stdout,) + + [formatter_form1] + class=""" + __name__ + """.ExceptionFormatter + format=%(levelname)s:%(name)s:%(message)s + datefmt= + """ + + # config5 specifies a custom handler class to be loaded + config5 = config1.replace('class=StreamHandler', 'class=logging.StreamHandler') + + # config6 uses ', ' delimiters in the handlers and formatters sections + config6 = """ + [loggers] + keys=root,parser + + [handlers] + keys=hand1, hand2 + + [formatters] + keys=form1, form2 + + [logger_root] + level=WARNING + handlers= + + [logger_parser] + level=DEBUG + handlers=hand1 + propagate=1 + qualname=compiler.parser + + [handler_hand1] + class=StreamHandler + level=NOTSET + formatter=form1 + args=(sys.stdout,) + + [handler_hand2] + class=StreamHandler + level=NOTSET + formatter=form1 + args=(sys.stderr,) + + [formatter_form1] + format=%(levelname)s ++ %(message)s + datefmt= + + [formatter_form2] + format=%(message)s + datefmt= + """ + + # config7 adds a compiler logger, and uses kwargs instead of args. + config7 = """ + [loggers] + keys=root,parser,compiler + + [handlers] + keys=hand1 + + [formatters] + keys=form1 + + [logger_root] + level=WARNING + handlers=hand1 + + [logger_compiler] + level=DEBUG + handlers= + propagate=1 + qualname=compiler + + [logger_parser] + level=DEBUG + handlers= + propagate=1 + qualname=compiler.parser + + [handler_hand1] + class=StreamHandler + level=NOTSET + formatter=form1 + kwargs={'stream': sys.stdout,} + + [formatter_form1] + format=%(levelname)s ++ %(message)s + datefmt= + """ + + # config 8, check for resource warning + config8 = r""" + [loggers] + keys=root + + [handlers] + keys=file + + [formatters] + keys= + + [logger_root] + level=DEBUG + handlers=file + + [handler_file] + class=FileHandler + level=DEBUG + args=("{tempfile}",) + kwargs={{"encoding": "utf-8"}} + """ + + + config9 = """ + [loggers] + keys=root + + [handlers] + keys=hand1 + + [formatters] + keys=form1 + + [logger_root] + level=WARNING + handlers=hand1 + + [handler_hand1] + class=StreamHandler + level=NOTSET + formatter=form1 + args=(sys.stdout,) + + [formatter_form1] + format=%(message)s ++ %(customfield)s + defaults={"customfield": "defaultvalue"} + """ + + disable_test = """ + [loggers] + keys=root + + [handlers] + keys=screen + + [formatters] + keys= + + [logger_root] + level=DEBUG + handlers=screen + + [handler_screen] + level=DEBUG + class=StreamHandler + args=(sys.stdout,) + formatter= + """ + + def apply_config(self, conf, **kwargs): + file = io.StringIO(textwrap.dedent(conf)) + logging.config.fileConfig(file, encoding="utf-8", **kwargs) + + def test_config0_ok(self): + # A simple config file which overrides the default settings. + with support.captured_stdout() as output: + self.apply_config(self.config0) + logger = logging.getLogger() + # Won't output anything + logger.info(self.next_message()) + # Outputs a message + logger.error(self.next_message()) + self.assert_log_lines([ + ('ERROR', '2'), + ], stream=output) + # Original logger output is empty. + self.assert_log_lines([]) + + def test_config0_using_cp_ok(self): + # A simple config file which overrides the default settings. + with support.captured_stdout() as output: + file = io.StringIO(textwrap.dedent(self.config0)) + cp = configparser.ConfigParser() + cp.read_file(file) + logging.config.fileConfig(cp) + logger = logging.getLogger() + # Won't output anything + logger.info(self.next_message()) + # Outputs a message + logger.error(self.next_message()) + self.assert_log_lines([ + ('ERROR', '2'), + ], stream=output) + # Original logger output is empty. + self.assert_log_lines([]) + + def test_config1_ok(self, config=config1): + # A config file defining a sub-parser as well. + with support.captured_stdout() as output: + self.apply_config(config) + logger = logging.getLogger("compiler.parser") + # Both will output a message + logger.info(self.next_message()) + logger.error(self.next_message()) + self.assert_log_lines([ + ('INFO', '1'), + ('ERROR', '2'), + ], stream=output) + # Original logger output is empty. + self.assert_log_lines([]) + + def test_config2_failure(self): + # A simple config file which overrides the default settings. + self.assertRaises(Exception, self.apply_config, self.config2) + + def test_config3_failure(self): + # A simple config file which overrides the default settings. + self.assertRaises(Exception, self.apply_config, self.config3) + + def test_config4_ok(self): + # A config file specifying a custom formatter class. + with support.captured_stdout() as output: + self.apply_config(self.config4) + logger = logging.getLogger() + try: + raise RuntimeError() + except RuntimeError: + logging.exception("just testing") + sys.stdout.seek(0) + self.assertEqual(output.getvalue(), + "ERROR:root:just testing\nGot a [RuntimeError]\n") + # Original logger output is empty + self.assert_log_lines([]) + + def test_config5_ok(self): + self.test_config1_ok(config=self.config5) + + def test_config6_ok(self): + self.test_config1_ok(config=self.config6) + + def test_config7_ok(self): + with support.captured_stdout() as output: + self.apply_config(self.config1a) + logger = logging.getLogger("compiler.parser") + # See issue #11424. compiler-hyphenated sorts + # between compiler and compiler.xyz and this + # was preventing compiler.xyz from being included + # in the child loggers of compiler because of an + # overzealous loop termination condition. + hyphenated = logging.getLogger('compiler-hyphenated') + # All will output a message + logger.info(self.next_message()) + logger.error(self.next_message()) + hyphenated.critical(self.next_message()) + self.assert_log_lines([ + ('INFO', '1'), + ('ERROR', '2'), + ('CRITICAL', '3'), + ], stream=output) + # Original logger output is empty. + self.assert_log_lines([]) + with support.captured_stdout() as output: + self.apply_config(self.config7) + logger = logging.getLogger("compiler.parser") + self.assertFalse(logger.disabled) + # Both will output a message + logger.info(self.next_message()) + logger.error(self.next_message()) + logger = logging.getLogger("compiler.lexer") + # Both will output a message + logger.info(self.next_message()) + logger.error(self.next_message()) + # Will not appear + hyphenated.critical(self.next_message()) + self.assert_log_lines([ + ('INFO', '4'), + ('ERROR', '5'), + ('INFO', '6'), + ('ERROR', '7'), + ], stream=output) + # Original logger output is empty. + self.assert_log_lines([]) + + def test_config8_ok(self): + + with self.check_no_resource_warning(): + fn = make_temp_file(".log", "test_logging-X-") + + # Replace single backslash with double backslash in windows + # to avoid unicode error during string formatting + if os.name == "nt": + fn = fn.replace("\\", "\\\\") + + config8 = self.config8.format(tempfile=fn) + + self.apply_config(config8) + self.apply_config(config8) + + handler = logging.root.handlers[0] + self.addCleanup(closeFileHandler, handler, fn) + + def test_config9_ok(self): + self.apply_config(self.config9) + formatter = logging.root.handlers[0].formatter + result = formatter.format(logging.makeLogRecord({'msg': 'test'})) + self.assertEqual(result, 'test ++ defaultvalue') + result = formatter.format(logging.makeLogRecord( + {'msg': 'test', 'customfield': "customvalue"})) + self.assertEqual(result, 'test ++ customvalue') + + + def test_logger_disabling(self): + self.apply_config(self.disable_test) + logger = logging.getLogger('some_pristine_logger') + self.assertFalse(logger.disabled) + self.apply_config(self.disable_test) + self.assertTrue(logger.disabled) + self.apply_config(self.disable_test, disable_existing_loggers=False) + self.assertFalse(logger.disabled) + + def test_config_set_handler_names(self): + test_config = """ + [loggers] + keys=root + + [handlers] + keys=hand1 + + [formatters] + keys=form1 + + [logger_root] + handlers=hand1 + + [handler_hand1] + class=StreamHandler + formatter=form1 + + [formatter_form1] + format=%(levelname)s ++ %(message)s + """ + self.apply_config(test_config) + self.assertEqual(logging.getLogger().handlers[0].name, 'hand1') + + def test_exception_if_confg_file_is_invalid(self): + test_config = """ + [loggers] + keys=root + + [handlers] + keys=hand1 + + [formatters] + keys=form1 + + [logger_root] + handlers=hand1 + + [handler_hand1] + class=StreamHandler + formatter=form1 + + [formatter_form1] + format=%(levelname)s ++ %(message)s + + prince + """ + + file = io.StringIO(textwrap.dedent(test_config)) + self.assertRaises(RuntimeError, logging.config.fileConfig, file) + + def test_exception_if_confg_file_is_empty(self): + fd, fn = tempfile.mkstemp(prefix='test_empty_', suffix='.ini') + os.close(fd) + self.assertRaises(RuntimeError, logging.config.fileConfig, fn) + os.remove(fn) + + def test_exception_if_config_file_does_not_exist(self): + self.assertRaises(FileNotFoundError, logging.config.fileConfig, 'filenotfound') + + def test_defaults_do_no_interpolation(self): + """bpo-33802 defaults should not get interpolated""" + ini = textwrap.dedent(""" + [formatters] + keys=default + + [formatter_default] + + [handlers] + keys=console + + [handler_console] + class=logging.StreamHandler + args=tuple() + + [loggers] + keys=root + + [logger_root] + formatter=default + handlers=console + """).strip() + fd, fn = tempfile.mkstemp(prefix='test_logging_', suffix='.ini') + try: + os.write(fd, ini.encode('ascii')) + os.close(fd) + logging.config.fileConfig( + fn, + encoding="utf-8", + defaults=dict( + version=1, + disable_existing_loggers=False, + formatters={ + "generic": { + "format": "%(asctime)s [%(process)d] [%(levelname)s] %(message)s", + "datefmt": "[%Y-%m-%d %H:%M:%S %z]", + "class": "logging.Formatter" + }, + }, + ) + ) + finally: + os.unlink(fn) + + +@support.requires_working_socket() +@threading_helper.requires_working_threading() +class SocketHandlerTest(BaseTest): + + """Test for SocketHandler objects.""" + + server_class = TestTCPServer + address = ('localhost', 0) + + def setUp(self): + """Set up a TCP server to receive log messages, and a SocketHandler + pointing to that server's address and port.""" + BaseTest.setUp(self) + # Issue #29177: deal with errors that happen during setup + self.server = self.sock_hdlr = self.server_exception = None + try: + self.server = server = self.server_class(self.address, + self.handle_socket, 0.01) + server.start() + # Uncomment next line to test error recovery in setUp() + # raise OSError('dummy error raised') + except OSError as e: + self.server_exception = e + return + server.ready.wait() + hcls = logging.handlers.SocketHandler + if isinstance(server.server_address, tuple): + self.sock_hdlr = hcls('localhost', server.port) + else: + self.sock_hdlr = hcls(server.server_address, None) + self.log_output = '' + self.root_logger.removeHandler(self.root_logger.handlers[0]) + self.root_logger.addHandler(self.sock_hdlr) + self.handled = threading.Semaphore(0) + + def tearDown(self): + """Shutdown the TCP server.""" + try: + if self.sock_hdlr: + self.root_logger.removeHandler(self.sock_hdlr) + self.sock_hdlr.close() + if self.server: + self.server.stop() + finally: + BaseTest.tearDown(self) + + def handle_socket(self, request): + conn = request.connection + while True: + chunk = conn.recv(4) + if len(chunk) < 4: + break + slen = struct.unpack(">L", chunk)[0] + chunk = conn.recv(slen) + while len(chunk) < slen: + chunk = chunk + conn.recv(slen - len(chunk)) + obj = pickle.loads(chunk) + record = logging.makeLogRecord(obj) + self.log_output += record.msg + '\n' + self.handled.release() + + def test_output(self): + # The log message sent to the SocketHandler is properly received. + if self.server_exception: + self.skipTest(self.server_exception) + logger = logging.getLogger("tcp") + logger.error("spam") + self.handled.acquire() + logger.debug("eggs") + self.handled.acquire() + self.assertEqual(self.log_output, "spam\neggs\n") + + def test_noserver(self): + if self.server_exception: + self.skipTest(self.server_exception) + # Avoid timing-related failures due to SocketHandler's own hard-wired + # one-second timeout on socket.create_connection() (issue #16264). + self.sock_hdlr.retryStart = 2.5 + # Kill the server + self.server.stop() + # The logging call should try to connect, which should fail + try: + raise RuntimeError('Deliberate mistake') + except RuntimeError: + self.root_logger.exception('Never sent') + self.root_logger.error('Never sent, either') + now = time.time() + self.assertGreater(self.sock_hdlr.retryTime, now) + time.sleep(self.sock_hdlr.retryTime - now + 0.001) + self.root_logger.error('Nor this') + + +@unittest.skipUnless(hasattr(socket, "AF_UNIX"), "Unix sockets required") +class UnixSocketHandlerTest(SocketHandlerTest): + + """Test for SocketHandler with unix sockets.""" + + if hasattr(socket, "AF_UNIX"): + server_class = TestUnixStreamServer + + def setUp(self): + # override the definition in the base class + self.address = socket_helper.create_unix_domain_name() + self.addCleanup(os_helper.unlink, self.address) + SocketHandlerTest.setUp(self) + +@support.requires_working_socket() +@threading_helper.requires_working_threading() +class DatagramHandlerTest(BaseTest): + + """Test for DatagramHandler.""" + + server_class = TestUDPServer + address = ('localhost', 0) + + def setUp(self): + """Set up a UDP server to receive log messages, and a DatagramHandler + pointing to that server's address and port.""" + BaseTest.setUp(self) + # Issue #29177: deal with errors that happen during setup + self.server = self.sock_hdlr = self.server_exception = None + try: + self.server = server = self.server_class(self.address, + self.handle_datagram, 0.01) + server.start() + # Uncomment next line to test error recovery in setUp() + # raise OSError('dummy error raised') + except OSError as e: + self.server_exception = e + return + server.ready.wait() + hcls = logging.handlers.DatagramHandler + if isinstance(server.server_address, tuple): + self.sock_hdlr = hcls('localhost', server.port) + else: + self.sock_hdlr = hcls(server.server_address, None) + self.log_output = '' + self.root_logger.removeHandler(self.root_logger.handlers[0]) + self.root_logger.addHandler(self.sock_hdlr) + self.handled = threading.Event() + + def tearDown(self): + """Shutdown the UDP server.""" + try: + if self.server: + self.server.stop() + if self.sock_hdlr: + self.root_logger.removeHandler(self.sock_hdlr) + self.sock_hdlr.close() + finally: + BaseTest.tearDown(self) + + def handle_datagram(self, request): + slen = struct.pack('>L', 0) # length of prefix + packet = request.packet[len(slen):] + obj = pickle.loads(packet) + record = logging.makeLogRecord(obj) + self.log_output += record.msg + '\n' + self.handled.set() + + def test_output(self): + # The log message sent to the DatagramHandler is properly received. + if self.server_exception: + self.skipTest(self.server_exception) + logger = logging.getLogger("udp") + logger.error("spam") + self.handled.wait() + self.handled.clear() + logger.error("eggs") + self.handled.wait() + self.assertEqual(self.log_output, "spam\neggs\n") + +@unittest.skipUnless(hasattr(socket, "AF_UNIX"), "Unix sockets required") +class UnixDatagramHandlerTest(DatagramHandlerTest): + + """Test for DatagramHandler using Unix sockets.""" + + if hasattr(socket, "AF_UNIX"): + server_class = TestUnixDatagramServer + + def setUp(self): + # override the definition in the base class + self.address = socket_helper.create_unix_domain_name() + self.addCleanup(os_helper.unlink, self.address) + DatagramHandlerTest.setUp(self) + +@support.requires_working_socket() +@threading_helper.requires_working_threading() +class SysLogHandlerTest(BaseTest): + + """Test for SysLogHandler using UDP.""" + + server_class = TestUDPServer + address = ('localhost', 0) + + def setUp(self): + """Set up a UDP server to receive log messages, and a SysLogHandler + pointing to that server's address and port.""" + BaseTest.setUp(self) + # Issue #29177: deal with errors that happen during setup + self.server = self.sl_hdlr = self.server_exception = None + try: + self.server = server = self.server_class(self.address, + self.handle_datagram, 0.01) + server.start() + # Uncomment next line to test error recovery in setUp() + # raise OSError('dummy error raised') + except OSError as e: + self.server_exception = e + return + server.ready.wait() + hcls = logging.handlers.SysLogHandler + if isinstance(server.server_address, tuple): + self.sl_hdlr = hcls((server.server_address[0], server.port)) + else: + self.sl_hdlr = hcls(server.server_address) + self.log_output = b'' + self.root_logger.removeHandler(self.root_logger.handlers[0]) + self.root_logger.addHandler(self.sl_hdlr) + self.handled = threading.Event() + + def tearDown(self): + """Shutdown the server.""" + try: + if self.server: + self.server.stop() + if self.sl_hdlr: + self.root_logger.removeHandler(self.sl_hdlr) + self.sl_hdlr.close() + finally: + BaseTest.tearDown(self) + + def handle_datagram(self, request): + self.log_output = request.packet + self.handled.set() + + def test_output(self): + if self.server_exception: + self.skipTest(self.server_exception) + # The log message sent to the SysLogHandler is properly received. + logger = logging.getLogger("slh") + logger.error("sp\xe4m") + self.handled.wait(support.LONG_TIMEOUT) + self.assertEqual(self.log_output, b'<11>sp\xc3\xa4m\x00') + self.handled.clear() + self.sl_hdlr.append_nul = False + logger.error("sp\xe4m") + self.handled.wait(support.LONG_TIMEOUT) + self.assertEqual(self.log_output, b'<11>sp\xc3\xa4m') + self.handled.clear() + self.sl_hdlr.ident = "h\xe4m-" + logger.error("sp\xe4m") + self.handled.wait(support.LONG_TIMEOUT) + self.assertEqual(self.log_output, b'<11>h\xc3\xa4m-sp\xc3\xa4m') + + def test_udp_reconnection(self): + logger = logging.getLogger("slh") + self.sl_hdlr.close() + self.handled.clear() + logger.error("sp\xe4m") + self.handled.wait(support.LONG_TIMEOUT) + self.assertEqual(self.log_output, b'<11>sp\xc3\xa4m\x00') + +@unittest.skipUnless(hasattr(socket, "AF_UNIX"), "Unix sockets required") +class UnixSysLogHandlerTest(SysLogHandlerTest): + + """Test for SysLogHandler with Unix sockets.""" + + if hasattr(socket, "AF_UNIX"): + server_class = TestUnixDatagramServer + + def setUp(self): + # override the definition in the base class + self.address = socket_helper.create_unix_domain_name() + self.addCleanup(os_helper.unlink, self.address) + SysLogHandlerTest.setUp(self) + +@unittest.skipUnless(socket_helper.IPV6_ENABLED, + 'IPv6 support required for this test.') +class IPv6SysLogHandlerTest(SysLogHandlerTest): + + """Test for SysLogHandler with IPv6 host.""" + + server_class = TestUDPServer + address = ('::1', 0) + + def setUp(self): + self.server_class.address_family = socket.AF_INET6 + super(IPv6SysLogHandlerTest, self).setUp() + + def tearDown(self): + self.server_class.address_family = socket.AF_INET + super(IPv6SysLogHandlerTest, self).tearDown() + +@support.requires_working_socket() +@threading_helper.requires_working_threading() +class HTTPHandlerTest(BaseTest): + """Test for HTTPHandler.""" + + def setUp(self): + """Set up an HTTP server to receive log messages, and a HTTPHandler + pointing to that server's address and port.""" + BaseTest.setUp(self) + self.handled = threading.Event() + + def handle_request(self, request): + self.command = request.command + self.log_data = urlparse(request.path) + if self.command == 'POST': + try: + rlen = int(request.headers['Content-Length']) + self.post_data = request.rfile.read(rlen) + except: + self.post_data = None + request.send_response(200) + request.end_headers() + self.handled.set() + + # TODO: RUSTPYTHON + @unittest.skip("RUSTPYTHON") + def test_output(self): + # The log message sent to the HTTPHandler is properly received. + logger = logging.getLogger("http") + root_logger = self.root_logger + root_logger.removeHandler(self.root_logger.handlers[0]) + for secure in (False, True): + addr = ('localhost', 0) + if secure: + try: + import ssl + except ImportError: + sslctx = None + else: + here = os.path.dirname(__file__) + localhost_cert = os.path.join(here, "certdata", "keycert.pem") + sslctx = ssl.SSLContext(ssl.PROTOCOL_TLS_SERVER) + sslctx.load_cert_chain(localhost_cert) + + context = ssl.create_default_context(cafile=localhost_cert) + else: + sslctx = None + context = None + self.server = server = TestHTTPServer(addr, self.handle_request, + 0.01, sslctx=sslctx) + server.start() + server.ready.wait() + host = 'localhost:%d' % server.server_port + secure_client = secure and sslctx + self.h_hdlr = logging.handlers.HTTPHandler(host, '/frob', + secure=secure_client, + context=context, + credentials=('foo', 'bar')) + self.log_data = None + root_logger.addHandler(self.h_hdlr) + + for method in ('GET', 'POST'): + self.h_hdlr.method = method + self.handled.clear() + msg = "sp\xe4m" + logger.error(msg) + self.handled.wait() + self.assertEqual(self.log_data.path, '/frob') + self.assertEqual(self.command, method) + if method == 'GET': + d = parse_qs(self.log_data.query) + else: + d = parse_qs(self.post_data.decode('utf-8')) + self.assertEqual(d['name'], ['http']) + self.assertEqual(d['funcName'], ['test_output']) + self.assertEqual(d['msg'], [msg]) + + self.server.stop() + self.root_logger.removeHandler(self.h_hdlr) + self.h_hdlr.close() + +class MemoryTest(BaseTest): + + """Test memory persistence of logger objects.""" + + def setUp(self): + """Create a dict to remember potentially destroyed objects.""" + BaseTest.setUp(self) + self._survivors = {} + + def _watch_for_survival(self, *args): + """Watch the given objects for survival, by creating weakrefs to + them.""" + for obj in args: + key = id(obj), repr(obj) + self._survivors[key] = weakref.ref(obj) + + def _assertTruesurvival(self): + """Assert that all objects watched for survival have survived.""" + # Trigger cycle breaking. + gc.collect() + dead = [] + for (id_, repr_), ref in self._survivors.items(): + if ref() is None: + dead.append(repr_) + if dead: + self.fail("%d objects should have survived " + "but have been destroyed: %s" % (len(dead), ", ".join(dead))) + + def test_persistent_loggers(self): + # Logger objects are persistent and retain their configuration, even + # if visible references are destroyed. + self.root_logger.setLevel(logging.INFO) + foo = logging.getLogger("foo") + self._watch_for_survival(foo) + foo.setLevel(logging.DEBUG) + self.root_logger.debug(self.next_message()) + foo.debug(self.next_message()) + self.assert_log_lines([ + ('foo', 'DEBUG', '2'), + ]) + del foo + # foo has survived. + self._assertTruesurvival() + # foo has retained its settings. + bar = logging.getLogger("foo") + bar.debug(self.next_message()) + self.assert_log_lines([ + ('foo', 'DEBUG', '2'), + ('foo', 'DEBUG', '3'), + ]) + + +class EncodingTest(BaseTest): + def test_encoding_plain_file(self): + # In Python 2.x, a plain file object is treated as having no encoding. + log = logging.getLogger("test") + fn = make_temp_file(".log", "test_logging-1-") + # the non-ascii data we write to the log. + data = "foo\x80" + try: + handler = logging.FileHandler(fn, encoding="utf-8") + log.addHandler(handler) + try: + # write non-ascii data to the log. + log.warning(data) + finally: + log.removeHandler(handler) + handler.close() + # check we wrote exactly those bytes, ignoring trailing \n etc + f = open(fn, encoding="utf-8") + try: + self.assertEqual(f.read().rstrip(), data) + finally: + f.close() + finally: + if os.path.isfile(fn): + os.remove(fn) + + def test_encoding_cyrillic_unicode(self): + log = logging.getLogger("test") + # Get a message in Unicode: Do svidanya in Cyrillic (meaning goodbye) + message = '\u0434\u043e \u0441\u0432\u0438\u0434\u0430\u043d\u0438\u044f' + # Ensure it's written in a Cyrillic encoding + writer_class = codecs.getwriter('cp1251') + writer_class.encoding = 'cp1251' + stream = io.BytesIO() + writer = writer_class(stream, 'strict') + handler = logging.StreamHandler(writer) + log.addHandler(handler) + try: + log.warning(message) + finally: + log.removeHandler(handler) + handler.close() + # check we wrote exactly those bytes, ignoring trailing \n etc + s = stream.getvalue() + # Compare against what the data should be when encoded in CP-1251 + self.assertEqual(s, b'\xe4\xee \xf1\xe2\xe8\xe4\xe0\xed\xe8\xff\n') + + +class WarningsTest(BaseTest): + + def test_warnings(self): + with warnings.catch_warnings(): + logging.captureWarnings(True) + self.addCleanup(logging.captureWarnings, False) + warnings.filterwarnings("always", category=UserWarning) + stream = io.StringIO() + h = logging.StreamHandler(stream) + logger = logging.getLogger("py.warnings") + logger.addHandler(h) + warnings.warn("I'm warning you...") + logger.removeHandler(h) + s = stream.getvalue() + h.close() + self.assertGreater(s.find("UserWarning: I'm warning you...\n"), 0) + + # See if an explicit file uses the original implementation + a_file = io.StringIO() + warnings.showwarning("Explicit", UserWarning, "dummy.py", 42, + a_file, "Dummy line") + s = a_file.getvalue() + a_file.close() + self.assertEqual(s, + "dummy.py:42: UserWarning: Explicit\n Dummy line\n") + + def test_warnings_no_handlers(self): + with warnings.catch_warnings(): + logging.captureWarnings(True) + self.addCleanup(logging.captureWarnings, False) + + # confirm our assumption: no loggers are set + logger = logging.getLogger("py.warnings") + self.assertEqual(logger.handlers, []) + + warnings.showwarning("Explicit", UserWarning, "dummy.py", 42) + self.assertEqual(len(logger.handlers), 1) + self.assertIsInstance(logger.handlers[0], logging.NullHandler) + + +def formatFunc(format, datefmt=None): + return logging.Formatter(format, datefmt) + +class myCustomFormatter: + def __init__(self, fmt, datefmt=None): + pass + +def handlerFunc(): + return logging.StreamHandler() + +class CustomHandler(logging.StreamHandler): + pass + +class CustomListener(logging.handlers.QueueListener): + pass + +class CustomQueue(queue.Queue): + pass + +class CustomQueueProtocol: + def __init__(self, maxsize=0): + self.queue = queue.Queue(maxsize) + + def __getattr__(self, attribute): + queue = object.__getattribute__(self, 'queue') + return getattr(queue, attribute) + +class CustomQueueFakeProtocol(CustomQueueProtocol): + # An object implementing the minimial Queue API for + # the logging module but with incorrect signatures. + # + # The object will be considered a valid queue class since we + # do not check the signatures (only callability of methods) + # but will NOT be usable in production since a TypeError will + # be raised due to the extra argument in 'put_nowait'. + def put_nowait(self): + pass + +class CustomQueueWrongProtocol(CustomQueueProtocol): + put_nowait = None + +class MinimalQueueProtocol: + def put_nowait(self, x): pass + def get(self): pass + +def queueMaker(): + return queue.Queue() + +def listenerMaker(arg1, arg2, respect_handler_level=False): + def func(queue, *handlers, **kwargs): + kwargs.setdefault('respect_handler_level', respect_handler_level) + return CustomListener(queue, *handlers, **kwargs) + return func + +class ConfigDictTest(BaseTest): + + """Reading logging config from a dictionary.""" + + check_no_resource_warning = warnings_helper.check_no_resource_warning + expected_log_pat = r"^(\w+) \+\+ (\w+)$" + + # config0 is a standard configuration. + config0 = { + 'version': 1, + 'formatters': { + 'form1' : { + 'format' : '%(levelname)s ++ %(message)s', + }, + }, + 'handlers' : { + 'hand1' : { + 'class' : 'logging.StreamHandler', + 'formatter' : 'form1', + 'level' : 'NOTSET', + 'stream' : 'ext://sys.stdout', + }, + }, + 'root' : { + 'level' : 'WARNING', + 'handlers' : ['hand1'], + }, + } + + # config1 adds a little to the standard configuration. + config1 = { + 'version': 1, + 'formatters': { + 'form1' : { + 'format' : '%(levelname)s ++ %(message)s', + }, + }, + 'handlers' : { + 'hand1' : { + 'class' : 'logging.StreamHandler', + 'formatter' : 'form1', + 'level' : 'NOTSET', + 'stream' : 'ext://sys.stdout', + }, + }, + 'loggers' : { + 'compiler.parser' : { + 'level' : 'DEBUG', + 'handlers' : ['hand1'], + }, + }, + 'root' : { + 'level' : 'WARNING', + }, + } + + # config1a moves the handler to the root. Used with config8a + config1a = { + 'version': 1, + 'formatters': { + 'form1' : { + 'format' : '%(levelname)s ++ %(message)s', + }, + }, + 'handlers' : { + 'hand1' : { + 'class' : 'logging.StreamHandler', + 'formatter' : 'form1', + 'level' : 'NOTSET', + 'stream' : 'ext://sys.stdout', + }, + }, + 'loggers' : { + 'compiler.parser' : { + 'level' : 'DEBUG', + }, + }, + 'root' : { + 'level' : 'WARNING', + 'handlers' : ['hand1'], + }, + } + + # config2 has a subtle configuration error that should be reported + config2 = { + 'version': 1, + 'formatters': { + 'form1' : { + 'format' : '%(levelname)s ++ %(message)s', + }, + }, + 'handlers' : { + 'hand1' : { + 'class' : 'logging.StreamHandler', + 'formatter' : 'form1', + 'level' : 'NOTSET', + 'stream' : 'ext://sys.stdbout', + }, + }, + 'loggers' : { + 'compiler.parser' : { + 'level' : 'DEBUG', + 'handlers' : ['hand1'], + }, + }, + 'root' : { + 'level' : 'WARNING', + }, + } + + # As config1 but with a misspelt level on a handler + config2a = { + 'version': 1, + 'formatters': { + 'form1' : { + 'format' : '%(levelname)s ++ %(message)s', + }, + }, + 'handlers' : { + 'hand1' : { + 'class' : 'logging.StreamHandler', + 'formatter' : 'form1', + 'level' : 'NTOSET', + 'stream' : 'ext://sys.stdout', + }, + }, + 'loggers' : { + 'compiler.parser' : { + 'level' : 'DEBUG', + 'handlers' : ['hand1'], + }, + }, + 'root' : { + 'level' : 'WARNING', + }, + } + + + # As config1 but with a misspelt level on a logger + config2b = { + 'version': 1, + 'formatters': { + 'form1' : { + 'format' : '%(levelname)s ++ %(message)s', + }, + }, + 'handlers' : { + 'hand1' : { + 'class' : 'logging.StreamHandler', + 'formatter' : 'form1', + 'level' : 'NOTSET', + 'stream' : 'ext://sys.stdout', + }, + }, + 'loggers' : { + 'compiler.parser' : { + 'level' : 'DEBUG', + 'handlers' : ['hand1'], + }, + }, + 'root' : { + 'level' : 'WRANING', + }, + } + + # config3 has a less subtle configuration error + config3 = { + 'version': 1, + 'formatters': { + 'form1' : { + 'format' : '%(levelname)s ++ %(message)s', + }, + }, + 'handlers' : { + 'hand1' : { + 'class' : 'logging.StreamHandler', + 'formatter' : 'misspelled_name', + 'level' : 'NOTSET', + 'stream' : 'ext://sys.stdout', + }, + }, + 'loggers' : { + 'compiler.parser' : { + 'level' : 'DEBUG', + 'handlers' : ['hand1'], + }, + }, + 'root' : { + 'level' : 'WARNING', + }, + } + + # config4 specifies a custom formatter class to be loaded + config4 = { + 'version': 1, + 'formatters': { + 'form1' : { + '()' : __name__ + '.ExceptionFormatter', + 'format' : '%(levelname)s:%(name)s:%(message)s', + }, + }, + 'handlers' : { + 'hand1' : { + 'class' : 'logging.StreamHandler', + 'formatter' : 'form1', + 'level' : 'NOTSET', + 'stream' : 'ext://sys.stdout', + }, + }, + 'root' : { + 'level' : 'NOTSET', + 'handlers' : ['hand1'], + }, + } + + # As config4 but using an actual callable rather than a string + config4a = { + 'version': 1, + 'formatters': { + 'form1' : { + '()' : ExceptionFormatter, + 'format' : '%(levelname)s:%(name)s:%(message)s', + }, + 'form2' : { + '()' : __name__ + '.formatFunc', + 'format' : '%(levelname)s:%(name)s:%(message)s', + }, + 'form3' : { + '()' : formatFunc, + 'format' : '%(levelname)s:%(name)s:%(message)s', + }, + }, + 'handlers' : { + 'hand1' : { + 'class' : 'logging.StreamHandler', + 'formatter' : 'form1', + 'level' : 'NOTSET', + 'stream' : 'ext://sys.stdout', + }, + 'hand2' : { + '()' : handlerFunc, + }, + }, + 'root' : { + 'level' : 'NOTSET', + 'handlers' : ['hand1'], + }, + } + + # config5 specifies a custom handler class to be loaded + config5 = { + 'version': 1, + 'formatters': { + 'form1' : { + 'format' : '%(levelname)s ++ %(message)s', + }, + }, + 'handlers' : { + 'hand1' : { + 'class' : __name__ + '.CustomHandler', + 'formatter' : 'form1', + 'level' : 'NOTSET', + 'stream' : 'ext://sys.stdout', + }, + }, + 'loggers' : { + 'compiler.parser' : { + 'level' : 'DEBUG', + 'handlers' : ['hand1'], + }, + }, + 'root' : { + 'level' : 'WARNING', + }, + } + + # config6 specifies a custom handler class to be loaded + # but has bad arguments + config6 = { + 'version': 1, + 'formatters': { + 'form1' : { + 'format' : '%(levelname)s ++ %(message)s', + }, + }, + 'handlers' : { + 'hand1' : { + 'class' : __name__ + '.CustomHandler', + 'formatter' : 'form1', + 'level' : 'NOTSET', + 'stream' : 'ext://sys.stdout', + '9' : 'invalid parameter name', + }, + }, + 'loggers' : { + 'compiler.parser' : { + 'level' : 'DEBUG', + 'handlers' : ['hand1'], + }, + }, + 'root' : { + 'level' : 'WARNING', + }, + } + + # config 7 does not define compiler.parser but defines compiler.lexer + # so compiler.parser should be disabled after applying it + config7 = { + 'version': 1, + 'formatters': { + 'form1' : { + 'format' : '%(levelname)s ++ %(message)s', + }, + }, + 'handlers' : { + 'hand1' : { + 'class' : 'logging.StreamHandler', + 'formatter' : 'form1', + 'level' : 'NOTSET', + 'stream' : 'ext://sys.stdout', + }, + }, + 'loggers' : { + 'compiler.lexer' : { + 'level' : 'DEBUG', + 'handlers' : ['hand1'], + }, + }, + 'root' : { + 'level' : 'WARNING', + }, + } + + # config8 defines both compiler and compiler.lexer + # so compiler.parser should not be disabled (since + # compiler is defined) + config8 = { + 'version': 1, + 'disable_existing_loggers' : False, + 'formatters': { + 'form1' : { + 'format' : '%(levelname)s ++ %(message)s', + }, + }, + 'handlers' : { + 'hand1' : { + 'class' : 'logging.StreamHandler', + 'formatter' : 'form1', + 'level' : 'NOTSET', + 'stream' : 'ext://sys.stdout', + }, + }, + 'loggers' : { + 'compiler' : { + 'level' : 'DEBUG', + 'handlers' : ['hand1'], + }, + 'compiler.lexer' : { + }, + }, + 'root' : { + 'level' : 'WARNING', + }, + } + + # config8a disables existing loggers + config8a = { + 'version': 1, + 'disable_existing_loggers' : True, + 'formatters': { + 'form1' : { + 'format' : '%(levelname)s ++ %(message)s', + }, + }, + 'handlers' : { + 'hand1' : { + 'class' : 'logging.StreamHandler', + 'formatter' : 'form1', + 'level' : 'NOTSET', + 'stream' : 'ext://sys.stdout', + }, + }, + 'loggers' : { + 'compiler' : { + 'level' : 'DEBUG', + 'handlers' : ['hand1'], + }, + 'compiler.lexer' : { + }, + }, + 'root' : { + 'level' : 'WARNING', + }, + } + + config9 = { + 'version': 1, + 'formatters': { + 'form1' : { + 'format' : '%(levelname)s ++ %(message)s', + }, + }, + 'handlers' : { + 'hand1' : { + 'class' : 'logging.StreamHandler', + 'formatter' : 'form1', + 'level' : 'WARNING', + 'stream' : 'ext://sys.stdout', + }, + }, + 'loggers' : { + 'compiler.parser' : { + 'level' : 'WARNING', + 'handlers' : ['hand1'], + }, + }, + 'root' : { + 'level' : 'NOTSET', + }, + } + + config9a = { + 'version': 1, + 'incremental' : True, + 'handlers' : { + 'hand1' : { + 'level' : 'WARNING', + }, + }, + 'loggers' : { + 'compiler.parser' : { + 'level' : 'INFO', + }, + }, + } + + config9b = { + 'version': 1, + 'incremental' : True, + 'handlers' : { + 'hand1' : { + 'level' : 'INFO', + }, + }, + 'loggers' : { + 'compiler.parser' : { + 'level' : 'INFO', + }, + }, + } + + # As config1 but with a filter added + config10 = { + 'version': 1, + 'formatters': { + 'form1' : { + 'format' : '%(levelname)s ++ %(message)s', + }, + }, + 'filters' : { + 'filt1' : { + 'name' : 'compiler.parser', + }, + }, + 'handlers' : { + 'hand1' : { + 'class' : 'logging.StreamHandler', + 'formatter' : 'form1', + 'level' : 'NOTSET', + 'stream' : 'ext://sys.stdout', + 'filters' : ['filt1'], + }, + }, + 'loggers' : { + 'compiler.parser' : { + 'level' : 'DEBUG', + 'filters' : ['filt1'], + }, + }, + 'root' : { + 'level' : 'WARNING', + 'handlers' : ['hand1'], + }, + } + + # As config1 but using cfg:// references + config11 = { + 'version': 1, + 'true_formatters': { + 'form1' : { + 'format' : '%(levelname)s ++ %(message)s', + }, + }, + 'handler_configs': { + 'hand1' : { + 'class' : 'logging.StreamHandler', + 'formatter' : 'form1', + 'level' : 'NOTSET', + 'stream' : 'ext://sys.stdout', + }, + }, + 'formatters' : 'cfg://true_formatters', + 'handlers' : { + 'hand1' : 'cfg://handler_configs[hand1]', + }, + 'loggers' : { + 'compiler.parser' : { + 'level' : 'DEBUG', + 'handlers' : ['hand1'], + }, + }, + 'root' : { + 'level' : 'WARNING', + }, + } + + # As config11 but missing the version key + config12 = { + 'true_formatters': { + 'form1' : { + 'format' : '%(levelname)s ++ %(message)s', + }, + }, + 'handler_configs': { + 'hand1' : { + 'class' : 'logging.StreamHandler', + 'formatter' : 'form1', + 'level' : 'NOTSET', + 'stream' : 'ext://sys.stdout', + }, + }, + 'formatters' : 'cfg://true_formatters', + 'handlers' : { + 'hand1' : 'cfg://handler_configs[hand1]', + }, + 'loggers' : { + 'compiler.parser' : { + 'level' : 'DEBUG', + 'handlers' : ['hand1'], + }, + }, + 'root' : { + 'level' : 'WARNING', + }, + } + + # As config11 but using an unsupported version + config13 = { + 'version': 2, + 'true_formatters': { + 'form1' : { + 'format' : '%(levelname)s ++ %(message)s', + }, + }, + 'handler_configs': { + 'hand1' : { + 'class' : 'logging.StreamHandler', + 'formatter' : 'form1', + 'level' : 'NOTSET', + 'stream' : 'ext://sys.stdout', + }, + }, + 'formatters' : 'cfg://true_formatters', + 'handlers' : { + 'hand1' : 'cfg://handler_configs[hand1]', + }, + 'loggers' : { + 'compiler.parser' : { + 'level' : 'DEBUG', + 'handlers' : ['hand1'], + }, + }, + 'root' : { + 'level' : 'WARNING', + }, + } + + # As config0, but with properties + config14 = { + 'version': 1, + 'formatters': { + 'form1' : { + 'format' : '%(levelname)s ++ %(message)s', + }, + }, + 'handlers' : { + 'hand1' : { + 'class' : 'logging.StreamHandler', + 'formatter' : 'form1', + 'level' : 'NOTSET', + 'stream' : 'ext://sys.stdout', + '.': { + 'foo': 'bar', + 'terminator': '!\n', + } + }, + }, + 'root' : { + 'level' : 'WARNING', + 'handlers' : ['hand1'], + }, + } + + # config0 but with default values for formatter. Skipped 15, it is defined + # in the test code. + config16 = { + 'version': 1, + 'formatters': { + 'form1' : { + 'format' : '%(message)s ++ %(customfield)s', + 'defaults': {"customfield": "defaultvalue"} + }, + }, + 'handlers' : { + 'hand1' : { + 'class' : 'logging.StreamHandler', + 'formatter' : 'form1', + 'level' : 'NOTSET', + 'stream' : 'ext://sys.stdout', + }, + }, + 'root' : { + 'level' : 'WARNING', + 'handlers' : ['hand1'], + }, + } + + class CustomFormatter(logging.Formatter): + custom_property = "." + + def format(self, record): + return super().format(record) + + config17 = { + 'version': 1, + 'formatters': { + "custom": { + "()": CustomFormatter, + "style": "{", + "datefmt": "%Y-%m-%d %H:%M:%S", + "format": "{message}", # <-- to force an exception when configuring + ".": { + "custom_property": "value" + } + } + }, + 'handlers' : { + 'hand1' : { + 'class' : 'logging.StreamHandler', + 'formatter' : 'custom', + 'level' : 'NOTSET', + 'stream' : 'ext://sys.stdout', + }, + }, + 'root' : { + 'level' : 'WARNING', + 'handlers' : ['hand1'], + }, + } + + config18 = { + "version": 1, + "handlers": { + "console": { + "class": "logging.StreamHandler", + "level": "DEBUG", + }, + "buffering": { + "class": "logging.handlers.MemoryHandler", + "capacity": 5, + "target": "console", + "level": "DEBUG", + "flushLevel": "ERROR" + } + }, + "loggers": { + "mymodule": { + "level": "DEBUG", + "handlers": ["buffering"], + "propagate": "true" + } + } + } + + bad_format = { + "version": 1, + "formatters": { + "mySimpleFormatter": { + "format": "%(asctime)s (%(name)s) %(levelname)s: %(message)s", + "style": "$" + } + }, + "handlers": { + "fileGlobal": { + "class": "logging.StreamHandler", + "level": "DEBUG", + "formatter": "mySimpleFormatter" + }, + "bufferGlobal": { + "class": "logging.handlers.MemoryHandler", + "capacity": 5, + "formatter": "mySimpleFormatter", + "target": "fileGlobal", + "level": "DEBUG" + } + }, + "loggers": { + "mymodule": { + "level": "DEBUG", + "handlers": ["bufferGlobal"], + "propagate": "true" + } + } + } + + # Configuration with custom logging.Formatter subclass as '()' key and 'validate' set to False + custom_formatter_class_validate = { + 'version': 1, + 'formatters': { + 'form1': { + '()': __name__ + '.ExceptionFormatter', + 'format': '%(levelname)s:%(name)s:%(message)s', + 'validate': False, + }, + }, + 'handlers' : { + 'hand1' : { + 'class': 'logging.StreamHandler', + 'formatter': 'form1', + 'level': 'NOTSET', + 'stream': 'ext://sys.stdout', + }, + }, + "loggers": { + "my_test_logger_custom_formatter": { + "level": "DEBUG", + "handlers": ["hand1"], + "propagate": "true" + } + } + } + + # Configuration with custom logging.Formatter subclass as 'class' key and 'validate' set to False + custom_formatter_class_validate2 = { + 'version': 1, + 'formatters': { + 'form1': { + 'class': __name__ + '.ExceptionFormatter', + 'format': '%(levelname)s:%(name)s:%(message)s', + 'validate': False, + }, + }, + 'handlers' : { + 'hand1' : { + 'class': 'logging.StreamHandler', + 'formatter': 'form1', + 'level': 'NOTSET', + 'stream': 'ext://sys.stdout', + }, + }, + "loggers": { + "my_test_logger_custom_formatter": { + "level": "DEBUG", + "handlers": ["hand1"], + "propagate": "true" + } + } + } + + # Configuration with custom class that is not inherited from logging.Formatter + custom_formatter_class_validate3 = { + 'version': 1, + 'formatters': { + 'form1': { + 'class': __name__ + '.myCustomFormatter', + 'format': '%(levelname)s:%(name)s:%(message)s', + 'validate': False, + }, + }, + 'handlers' : { + 'hand1' : { + 'class': 'logging.StreamHandler', + 'formatter': 'form1', + 'level': 'NOTSET', + 'stream': 'ext://sys.stdout', + }, + }, + "loggers": { + "my_test_logger_custom_formatter": { + "level": "DEBUG", + "handlers": ["hand1"], + "propagate": "true" + } + } + } + + # Configuration with custom function, 'validate' set to False and no defaults + custom_formatter_with_function = { + 'version': 1, + 'formatters': { + 'form1': { + '()': formatFunc, + 'format': '%(levelname)s:%(name)s:%(message)s', + 'validate': False, + }, + }, + 'handlers' : { + 'hand1' : { + 'class': 'logging.StreamHandler', + 'formatter': 'form1', + 'level': 'NOTSET', + 'stream': 'ext://sys.stdout', + }, + }, + "loggers": { + "my_test_logger_custom_formatter": { + "level": "DEBUG", + "handlers": ["hand1"], + "propagate": "true" + } + } + } + + # Configuration with custom function, and defaults + custom_formatter_with_defaults = { + 'version': 1, + 'formatters': { + 'form1': { + '()': formatFunc, + 'format': '%(levelname)s:%(name)s:%(message)s:%(customfield)s', + 'defaults': {"customfield": "myvalue"} + }, + }, + 'handlers' : { + 'hand1' : { + 'class': 'logging.StreamHandler', + 'formatter': 'form1', + 'level': 'NOTSET', + 'stream': 'ext://sys.stdout', + }, + }, + "loggers": { + "my_test_logger_custom_formatter": { + "level": "DEBUG", + "handlers": ["hand1"], + "propagate": "true" + } + } + } + + config_queue_handler = { + 'version': 1, + 'handlers' : { + 'h1' : { + 'class': 'logging.FileHandler', + }, + # key is before depended on handlers to test that deferred config works + 'ah' : { + 'class': 'logging.handlers.QueueHandler', + 'handlers': ['h1'] + }, + }, + "root": { + "level": "DEBUG", + "handlers": ["ah"] + } + } + + def apply_config(self, conf): + logging.config.dictConfig(conf) + + def check_handler(self, name, cls): + h = logging.getHandlerByName(name) + self.assertIsInstance(h, cls) + + def test_config0_ok(self): + # A simple config which overrides the default settings. + with support.captured_stdout() as output: + self.apply_config(self.config0) + self.check_handler('hand1', logging.StreamHandler) + logger = logging.getLogger() + # Won't output anything + logger.info(self.next_message()) + # Outputs a message + logger.error(self.next_message()) + self.assert_log_lines([ + ('ERROR', '2'), + ], stream=output) + # Original logger output is empty. + self.assert_log_lines([]) + + def test_config1_ok(self, config=config1): + # A config defining a sub-parser as well. + with support.captured_stdout() as output: + self.apply_config(config) + logger = logging.getLogger("compiler.parser") + # Both will output a message + logger.info(self.next_message()) + logger.error(self.next_message()) + self.assert_log_lines([ + ('INFO', '1'), + ('ERROR', '2'), + ], stream=output) + # Original logger output is empty. + self.assert_log_lines([]) + + def test_config2_failure(self): + # A simple config which overrides the default settings. + self.assertRaises(Exception, self.apply_config, self.config2) + + def test_config2a_failure(self): + # A simple config which overrides the default settings. + self.assertRaises(Exception, self.apply_config, self.config2a) + + def test_config2b_failure(self): + # A simple config which overrides the default settings. + self.assertRaises(Exception, self.apply_config, self.config2b) + + def test_config3_failure(self): + # A simple config which overrides the default settings. + self.assertRaises(Exception, self.apply_config, self.config3) + + def test_config4_ok(self): + # A config specifying a custom formatter class. + with support.captured_stdout() as output: + self.apply_config(self.config4) + self.check_handler('hand1', logging.StreamHandler) + #logger = logging.getLogger() + try: + raise RuntimeError() + except RuntimeError: + logging.exception("just testing") + sys.stdout.seek(0) + self.assertEqual(output.getvalue(), + "ERROR:root:just testing\nGot a [RuntimeError]\n") + # Original logger output is empty + self.assert_log_lines([]) + + def test_config4a_ok(self): + # A config specifying a custom formatter class. + with support.captured_stdout() as output: + self.apply_config(self.config4a) + #logger = logging.getLogger() + try: + raise RuntimeError() + except RuntimeError: + logging.exception("just testing") + sys.stdout.seek(0) + self.assertEqual(output.getvalue(), + "ERROR:root:just testing\nGot a [RuntimeError]\n") + # Original logger output is empty + self.assert_log_lines([]) + + def test_config5_ok(self): + self.test_config1_ok(config=self.config5) + self.check_handler('hand1', CustomHandler) + + def test_config6_failure(self): + self.assertRaises(Exception, self.apply_config, self.config6) + + def test_config7_ok(self): + with support.captured_stdout() as output: + self.apply_config(self.config1) + logger = logging.getLogger("compiler.parser") + # Both will output a message + logger.info(self.next_message()) + logger.error(self.next_message()) + self.assert_log_lines([ + ('INFO', '1'), + ('ERROR', '2'), + ], stream=output) + # Original logger output is empty. + self.assert_log_lines([]) + with support.captured_stdout() as output: + self.apply_config(self.config7) + self.check_handler('hand1', logging.StreamHandler) + logger = logging.getLogger("compiler.parser") + self.assertTrue(logger.disabled) + logger = logging.getLogger("compiler.lexer") + # Both will output a message + logger.info(self.next_message()) + logger.error(self.next_message()) + self.assert_log_lines([ + ('INFO', '3'), + ('ERROR', '4'), + ], stream=output) + # Original logger output is empty. + self.assert_log_lines([]) + + # Same as test_config_7_ok but don't disable old loggers. + def test_config_8_ok(self): + with support.captured_stdout() as output: + self.apply_config(self.config1) + logger = logging.getLogger("compiler.parser") + # All will output a message + logger.info(self.next_message()) + logger.error(self.next_message()) + self.assert_log_lines([ + ('INFO', '1'), + ('ERROR', '2'), + ], stream=output) + # Original logger output is empty. + self.assert_log_lines([]) + with support.captured_stdout() as output: + self.apply_config(self.config8) + self.check_handler('hand1', logging.StreamHandler) + logger = logging.getLogger("compiler.parser") + self.assertFalse(logger.disabled) + # Both will output a message + logger.info(self.next_message()) + logger.error(self.next_message()) + logger = logging.getLogger("compiler.lexer") + # Both will output a message + logger.info(self.next_message()) + logger.error(self.next_message()) + self.assert_log_lines([ + ('INFO', '3'), + ('ERROR', '4'), + ('INFO', '5'), + ('ERROR', '6'), + ], stream=output) + # Original logger output is empty. + self.assert_log_lines([]) + + def test_config_8a_ok(self): + with support.captured_stdout() as output: + self.apply_config(self.config1a) + self.check_handler('hand1', logging.StreamHandler) + logger = logging.getLogger("compiler.parser") + # See issue #11424. compiler-hyphenated sorts + # between compiler and compiler.xyz and this + # was preventing compiler.xyz from being included + # in the child loggers of compiler because of an + # overzealous loop termination condition. + hyphenated = logging.getLogger('compiler-hyphenated') + # All will output a message + logger.info(self.next_message()) + logger.error(self.next_message()) + hyphenated.critical(self.next_message()) + self.assert_log_lines([ + ('INFO', '1'), + ('ERROR', '2'), + ('CRITICAL', '3'), + ], stream=output) + # Original logger output is empty. + self.assert_log_lines([]) + with support.captured_stdout() as output: + self.apply_config(self.config8a) + self.check_handler('hand1', logging.StreamHandler) + logger = logging.getLogger("compiler.parser") + self.assertFalse(logger.disabled) + # Both will output a message + logger.info(self.next_message()) + logger.error(self.next_message()) + logger = logging.getLogger("compiler.lexer") + # Both will output a message + logger.info(self.next_message()) + logger.error(self.next_message()) + # Will not appear + hyphenated.critical(self.next_message()) + self.assert_log_lines([ + ('INFO', '4'), + ('ERROR', '5'), + ('INFO', '6'), + ('ERROR', '7'), + ], stream=output) + # Original logger output is empty. + self.assert_log_lines([]) + + def test_config_9_ok(self): + with support.captured_stdout() as output: + self.apply_config(self.config9) + self.check_handler('hand1', logging.StreamHandler) + logger = logging.getLogger("compiler.parser") + # Nothing will be output since both handler and logger are set to WARNING + logger.info(self.next_message()) + self.assert_log_lines([], stream=output) + self.apply_config(self.config9a) + # Nothing will be output since handler is still set to WARNING + logger.info(self.next_message()) + self.assert_log_lines([], stream=output) + self.apply_config(self.config9b) + # Message should now be output + logger.info(self.next_message()) + self.assert_log_lines([ + ('INFO', '3'), + ], stream=output) + + def test_config_10_ok(self): + with support.captured_stdout() as output: + self.apply_config(self.config10) + self.check_handler('hand1', logging.StreamHandler) + logger = logging.getLogger("compiler.parser") + logger.warning(self.next_message()) + logger = logging.getLogger('compiler') + # Not output, because filtered + logger.warning(self.next_message()) + logger = logging.getLogger('compiler.lexer') + # Not output, because filtered + logger.warning(self.next_message()) + logger = logging.getLogger("compiler.parser.codegen") + # Output, as not filtered + logger.error(self.next_message()) + self.assert_log_lines([ + ('WARNING', '1'), + ('ERROR', '4'), + ], stream=output) + + def test_config11_ok(self): + self.test_config1_ok(self.config11) + + def test_config12_failure(self): + self.assertRaises(Exception, self.apply_config, self.config12) + + def test_config13_failure(self): + self.assertRaises(Exception, self.apply_config, self.config13) + + def test_config14_ok(self): + with support.captured_stdout() as output: + self.apply_config(self.config14) + h = logging._handlers['hand1'] + self.assertEqual(h.foo, 'bar') + self.assertEqual(h.terminator, '!\n') + logging.warning('Exclamation') + self.assertTrue(output.getvalue().endswith('Exclamation!\n')) + + def test_config15_ok(self): + + with self.check_no_resource_warning(): + fn = make_temp_file(".log", "test_logging-X-") + + config = { + "version": 1, + "handlers": { + "file": { + "class": "logging.FileHandler", + "filename": fn, + "encoding": "utf-8", + } + }, + "root": { + "handlers": ["file"] + } + } + + self.apply_config(config) + self.apply_config(config) + + handler = logging.root.handlers[0] + self.addCleanup(closeFileHandler, handler, fn) + + def test_config16_ok(self): + self.apply_config(self.config16) + h = logging._handlers['hand1'] + + # Custom value + result = h.formatter.format(logging.makeLogRecord( + {'msg': 'Hello', 'customfield': 'customvalue'})) + self.assertEqual(result, 'Hello ++ customvalue') + + # Default value + result = h.formatter.format(logging.makeLogRecord( + {'msg': 'Hello'})) + self.assertEqual(result, 'Hello ++ defaultvalue') + + def test_config17_ok(self): + self.apply_config(self.config17) + h = logging._handlers['hand1'] + self.assertEqual(h.formatter.custom_property, 'value') + + def test_config18_ok(self): + self.apply_config(self.config18) + handler = logging.getLogger('mymodule').handlers[0] + self.assertEqual(handler.flushLevel, logging.ERROR) + + def setup_via_listener(self, text, verify=None): + text = text.encode("utf-8") + # Ask for a randomly assigned port (by using port 0) + t = logging.config.listen(0, verify) + t.start() + t.ready.wait() + # Now get the port allocated + port = t.port + t.ready.clear() + try: + sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) + sock.settimeout(2.0) + sock.connect(('localhost', port)) + + slen = struct.pack('>L', len(text)) + s = slen + text + sentsofar = 0 + left = len(s) + while left > 0: + sent = sock.send(s[sentsofar:]) + sentsofar += sent + left -= sent + sock.close() + finally: + t.ready.wait(2.0) + logging.config.stopListening() + threading_helper.join_thread(t) + + @support.requires_working_socket() + def test_listen_config_10_ok(self): + with support.captured_stdout() as output: + self.setup_via_listener(json.dumps(self.config10)) + self.check_handler('hand1', logging.StreamHandler) + logger = logging.getLogger("compiler.parser") + logger.warning(self.next_message()) + logger = logging.getLogger('compiler') + # Not output, because filtered + logger.warning(self.next_message()) + logger = logging.getLogger('compiler.lexer') + # Not output, because filtered + logger.warning(self.next_message()) + logger = logging.getLogger("compiler.parser.codegen") + # Output, as not filtered + logger.error(self.next_message()) + self.assert_log_lines([ + ('WARNING', '1'), + ('ERROR', '4'), + ], stream=output) + + @support.requires_working_socket() + def test_listen_config_1_ok(self): + with support.captured_stdout() as output: + self.setup_via_listener(textwrap.dedent(ConfigFileTest.config1)) + logger = logging.getLogger("compiler.parser") + # Both will output a message + logger.info(self.next_message()) + logger.error(self.next_message()) + self.assert_log_lines([ + ('INFO', '1'), + ('ERROR', '2'), + ], stream=output) + # Original logger output is empty. + self.assert_log_lines([]) + + @support.requires_working_socket() + def test_listen_verify(self): + + def verify_fail(stuff): + return None + + def verify_reverse(stuff): + return stuff[::-1] + + logger = logging.getLogger("compiler.parser") + to_send = textwrap.dedent(ConfigFileTest.config1) + # First, specify a verification function that will fail. + # We expect to see no output, since our configuration + # never took effect. + with support.captured_stdout() as output: + self.setup_via_listener(to_send, verify_fail) + # Both will output a message + logger.info(self.next_message()) + logger.error(self.next_message()) + self.assert_log_lines([], stream=output) + # Original logger output has the stuff we logged. + self.assert_log_lines([ + ('INFO', '1'), + ('ERROR', '2'), + ], pat=r"^[\w.]+ -> (\w+): (\d+)$") + + # Now, perform no verification. Our configuration + # should take effect. + + with support.captured_stdout() as output: + self.setup_via_listener(to_send) # no verify callable specified + logger = logging.getLogger("compiler.parser") + # Both will output a message + logger.info(self.next_message()) + logger.error(self.next_message()) + self.assert_log_lines([ + ('INFO', '3'), + ('ERROR', '4'), + ], stream=output) + # Original logger output still has the stuff we logged before. + self.assert_log_lines([ + ('INFO', '1'), + ('ERROR', '2'), + ], pat=r"^[\w.]+ -> (\w+): (\d+)$") + + # Now, perform verification which transforms the bytes. + + with support.captured_stdout() as output: + self.setup_via_listener(to_send[::-1], verify_reverse) + logger = logging.getLogger("compiler.parser") + # Both will output a message + logger.info(self.next_message()) + logger.error(self.next_message()) + self.assert_log_lines([ + ('INFO', '5'), + ('ERROR', '6'), + ], stream=output) + # Original logger output still has the stuff we logged before. + self.assert_log_lines([ + ('INFO', '1'), + ('ERROR', '2'), + ], pat=r"^[\w.]+ -> (\w+): (\d+)$") + + def test_bad_format(self): + self.assertRaises(ValueError, self.apply_config, self.bad_format) + + def test_bad_format_with_dollar_style(self): + config = copy.deepcopy(self.bad_format) + config['formatters']['mySimpleFormatter']['format'] = "${asctime} (${name}) ${levelname}: ${message}" + + self.apply_config(config) + handler = logging.getLogger('mymodule').handlers[0] + self.assertIsInstance(handler.target, logging.Handler) + self.assertIsInstance(handler.formatter._style, + logging.StringTemplateStyle) + self.assertEqual(sorted(logging.getHandlerNames()), + ['bufferGlobal', 'fileGlobal']) + + def test_custom_formatter_class_with_validate(self): + self.apply_config(self.custom_formatter_class_validate) + handler = logging.getLogger("my_test_logger_custom_formatter").handlers[0] + self.assertIsInstance(handler.formatter, ExceptionFormatter) + + def test_custom_formatter_class_with_validate2(self): + self.apply_config(self.custom_formatter_class_validate2) + handler = logging.getLogger("my_test_logger_custom_formatter").handlers[0] + self.assertIsInstance(handler.formatter, ExceptionFormatter) + + def test_custom_formatter_class_with_validate2_with_wrong_fmt(self): + config = self.custom_formatter_class_validate.copy() + config['formatters']['form1']['style'] = "$" + + # Exception should not be raised as we have configured 'validate' to False + self.apply_config(config) + handler = logging.getLogger("my_test_logger_custom_formatter").handlers[0] + self.assertIsInstance(handler.formatter, ExceptionFormatter) + + def test_custom_formatter_class_with_validate3(self): + self.assertRaises(ValueError, self.apply_config, self.custom_formatter_class_validate3) + + def test_custom_formatter_function_with_validate(self): + self.assertRaises(ValueError, self.apply_config, self.custom_formatter_with_function) + + def test_custom_formatter_function_with_defaults(self): + self.assertRaises(ValueError, self.apply_config, self.custom_formatter_with_defaults) + + def test_baseconfig(self): + d = { + 'atuple': (1, 2, 3), + 'alist': ['a', 'b', 'c'], + 'adict': {'d': 'e', 'f': 3 }, + 'nest1': ('g', ('h', 'i'), 'j'), + 'nest2': ['k', ['l', 'm'], 'n'], + 'nest3': ['o', 'cfg://alist', 'p'], + } + bc = logging.config.BaseConfigurator(d) + self.assertEqual(bc.convert('cfg://atuple[1]'), 2) + self.assertEqual(bc.convert('cfg://alist[1]'), 'b') + self.assertEqual(bc.convert('cfg://nest1[1][0]'), 'h') + self.assertEqual(bc.convert('cfg://nest2[1][1]'), 'm') + self.assertEqual(bc.convert('cfg://adict.d'), 'e') + self.assertEqual(bc.convert('cfg://adict[f]'), 3) + v = bc.convert('cfg://nest3') + self.assertEqual(v.pop(1), ['a', 'b', 'c']) + self.assertRaises(KeyError, bc.convert, 'cfg://nosuch') + self.assertRaises(ValueError, bc.convert, 'cfg://!') + self.assertRaises(KeyError, bc.convert, 'cfg://adict[2]') + + def test_namedtuple(self): + # see bpo-39142 + from collections import namedtuple + + class MyHandler(logging.StreamHandler): + def __init__(self, resource, *args, **kwargs): + super().__init__(*args, **kwargs) + self.resource: namedtuple = resource + + def emit(self, record): + record.msg += f' {self.resource.type}' + return super().emit(record) + + Resource = namedtuple('Resource', ['type', 'labels']) + resource = Resource(type='my_type', labels=['a']) + + config = { + 'version': 1, + 'handlers': { + 'myhandler': { + '()': MyHandler, + 'resource': resource + } + }, + 'root': {'level': 'INFO', 'handlers': ['myhandler']}, + } + with support.captured_stderr() as stderr: + self.apply_config(config) + logging.info('some log') + self.assertEqual(stderr.getvalue(), 'some log my_type\n') + + def test_config_callable_filter_works(self): + def filter_(_): + return 1 + self.apply_config({ + "version": 1, "root": {"level": "DEBUG", "filters": [filter_]} + }) + assert logging.getLogger().filters[0] is filter_ + logging.getLogger().filters = [] + + def test_config_filter_works(self): + filter_ = logging.Filter("spam.eggs") + self.apply_config({ + "version": 1, "root": {"level": "DEBUG", "filters": [filter_]} + }) + assert logging.getLogger().filters[0] is filter_ + logging.getLogger().filters = [] + + def test_config_filter_method_works(self): + class FakeFilter: + def filter(self, _): + return 1 + filter_ = FakeFilter() + self.apply_config({ + "version": 1, "root": {"level": "DEBUG", "filters": [filter_]} + }) + assert logging.getLogger().filters[0] is filter_ + logging.getLogger().filters = [] + + def test_invalid_type_raises(self): + class NotAFilter: pass + for filter_ in [None, 1, NotAFilter()]: + self.assertRaises( + ValueError, + self.apply_config, + {"version": 1, "root": {"level": "DEBUG", "filters": [filter_]}} + ) + + def do_queuehandler_configuration(self, qspec, lspec): + cd = copy.deepcopy(self.config_queue_handler) + fn = make_temp_file('.log', 'test_logging-cqh-') + cd['handlers']['h1']['filename'] = fn + if qspec is not None: + cd['handlers']['ah']['queue'] = qspec + if lspec is not None: + cd['handlers']['ah']['listener'] = lspec + qh = None + try: + self.apply_config(cd) + qh = logging.getHandlerByName('ah') + self.assertEqual(sorted(logging.getHandlerNames()), ['ah', 'h1']) + self.assertIsNotNone(qh.listener) + qh.listener.start() + logging.debug('foo') + logging.info('bar') + logging.warning('baz') + + # Need to let the listener thread finish its work + while support.sleeping_retry(support.LONG_TIMEOUT, + "queue not empty"): + if qh.listener.queue.empty(): + break + + # wait until the handler completed its last task + qh.listener.queue.join() + + with open(fn, encoding='utf-8') as f: + data = f.read().splitlines() + self.assertEqual(data, ['foo', 'bar', 'baz']) + finally: + if qh: + qh.listener.stop() + h = logging.getHandlerByName('h1') + if h: + self.addCleanup(closeFileHandler, h, fn) + else: + self.addCleanup(os.remove, fn) + + @threading_helper.requires_working_threading() + @support.requires_subprocess() + def test_config_queue_handler(self): + qs = [CustomQueue(), CustomQueueProtocol()] + dqs = [{'()': f'{__name__}.{cls}', 'maxsize': 10} + for cls in ['CustomQueue', 'CustomQueueProtocol']] + dl = { + '()': __name__ + '.listenerMaker', + 'arg1': None, + 'arg2': None, + 'respect_handler_level': True + } + qvalues = (None, __name__ + '.queueMaker', __name__ + '.CustomQueue', *dqs, *qs) + lvalues = (None, __name__ + '.CustomListener', dl, CustomListener) + for qspec, lspec in itertools.product(qvalues, lvalues): + self.do_queuehandler_configuration(qspec, lspec) + + # Some failure cases + qvalues = (None, 4, int, '', 'foo') + lvalues = (None, 4, int, '', 'bar') + for qspec, lspec in itertools.product(qvalues, lvalues): + if lspec is None and qspec is None: + continue + with self.assertRaises(ValueError) as ctx: + self.do_queuehandler_configuration(qspec, lspec) + msg = str(ctx.exception) + self.assertEqual(msg, "Unable to configure handler 'ah'") + + def _apply_simple_queue_listener_configuration(self, qspec): + self.apply_config({ + "version": 1, + "handlers": { + "queue_listener": { + "class": "logging.handlers.QueueHandler", + "queue": qspec, + }, + }, + }) + + @threading_helper.requires_working_threading() + @support.requires_subprocess() + @patch("multiprocessing.Manager") + def test_config_queue_handler_does_not_create_multiprocessing_manager(self, manager): + # gh-120868, gh-121723, gh-124653 + + for qspec in [ + {"()": "queue.Queue", "maxsize": -1}, + queue.Queue(), + # queue.SimpleQueue does not inherit from queue.Queue + queue.SimpleQueue(), + # CustomQueueFakeProtocol passes the checks but will not be usable + # since the signatures are incompatible. Checking the Queue API + # without testing the type of the actual queue is a trade-off + # between usability and the work we need to do in order to safely + # check that the queue object correctly implements the API. + CustomQueueFakeProtocol(), + MinimalQueueProtocol(), + ]: + with self.subTest(qspec=qspec): + self._apply_simple_queue_listener_configuration(qspec) + manager.assert_not_called() + + @patch("multiprocessing.Manager") + def test_config_queue_handler_invalid_config_does_not_create_multiprocessing_manager(self, manager): + # gh-120868, gh-121723 + + for qspec in [object(), CustomQueueWrongProtocol()]: + with self.subTest(qspec=qspec), self.assertRaises(ValueError): + self._apply_simple_queue_listener_configuration(qspec) + manager.assert_not_called() + + @skip_if_tsan_fork + @support.requires_subprocess() + @unittest.skipUnless(support.Py_DEBUG, "requires a debug build for testing" + " assertions in multiprocessing") + def test_config_reject_simple_queue_handler_multiprocessing_context(self): + # multiprocessing.SimpleQueue does not implement 'put_nowait' + # and thus cannot be used as a queue-like object (gh-124653) + + import multiprocessing + + if support.MS_WINDOWS: + start_methods = ['spawn'] + else: + start_methods = ['spawn', 'fork', 'forkserver'] + + for start_method in start_methods: + with self.subTest(start_method=start_method): + ctx = multiprocessing.get_context(start_method) + qspec = ctx.SimpleQueue() + with self.assertRaises(ValueError): + self._apply_simple_queue_listener_configuration(qspec) + + @skip_if_tsan_fork + @support.requires_subprocess() + @unittest.skipUnless(support.Py_DEBUG, "requires a debug build for testing" + "assertions in multiprocessing") + def test_config_queue_handler_multiprocessing_context(self): + # regression test for gh-121723 + if support.MS_WINDOWS: + start_methods = ['spawn'] + else: + start_methods = ['spawn', 'fork', 'forkserver'] + for start_method in start_methods: + with self.subTest(start_method=start_method): + ctx = multiprocessing.get_context(start_method) + with ctx.Manager() as manager: + q = manager.Queue() + records = [] + # use 1 process and 1 task per child to put 1 record + with ctx.Pool(1, initializer=self._mpinit_issue121723, + initargs=(q, "text"), maxtasksperchild=1): + records.append(q.get(timeout=60)) + self.assertTrue(q.empty()) + self.assertEqual(len(records), 1) + + @staticmethod + def _mpinit_issue121723(qspec, message_to_log): + # static method for pickling support + logging.config.dictConfig({ + 'version': 1, + 'disable_existing_loggers': True, + 'handlers': { + 'log_to_parent': { + 'class': 'logging.handlers.QueueHandler', + 'queue': qspec + } + }, + 'root': {'handlers': ['log_to_parent'], 'level': 'DEBUG'} + }) + # log a message (this creates a record put in the queue) + logging.getLogger().info(message_to_log) + + # TODO: RustPython + @unittest.expectedFailure + @support.requires_subprocess() + def test_multiprocessing_queues(self): + # See gh-119819 + + cd = copy.deepcopy(self.config_queue_handler) + from multiprocessing import Queue as MQ, Manager as MM + q1 = MQ() # this can't be pickled + q2 = MM().Queue() # a proxy queue for use when pickling is needed + q3 = MM().JoinableQueue() # a joinable proxy queue + for qspec in (q1, q2, q3): + fn = make_temp_file('.log', 'test_logging-cmpqh-') + cd['handlers']['h1']['filename'] = fn + cd['handlers']['ah']['queue'] = qspec + qh = None + try: + self.apply_config(cd) + qh = logging.getHandlerByName('ah') + self.assertEqual(sorted(logging.getHandlerNames()), ['ah', 'h1']) + self.assertIsNotNone(qh.listener) + self.assertIs(qh.queue, qspec) + self.assertIs(qh.listener.queue, qspec) + finally: + h = logging.getHandlerByName('h1') + if h: + self.addCleanup(closeFileHandler, h, fn) + else: + self.addCleanup(os.remove, fn) + + def test_90195(self): + # See gh-90195 + config = { + 'version': 1, + 'disable_existing_loggers': False, + 'handlers': { + 'console': { + 'level': 'DEBUG', + 'class': 'logging.StreamHandler', + }, + }, + 'loggers': { + 'a': { + 'level': 'DEBUG', + 'handlers': ['console'] + } + } + } + logger = logging.getLogger('a') + self.assertFalse(logger.disabled) + self.apply_config(config) + self.assertFalse(logger.disabled) + # Should disable all loggers ... + self.apply_config({'version': 1}) + self.assertTrue(logger.disabled) + del config['disable_existing_loggers'] + self.apply_config(config) + # Logger should be enabled, since explicitly mentioned + self.assertFalse(logger.disabled) + + # TODO: RustPython + @unittest.expectedFailure + def test_111615(self): + # See gh-111615 + import_helper.import_module('_multiprocessing') # see gh-113692 + mp = import_helper.import_module('multiprocessing') + + config = { + 'version': 1, + 'handlers': { + 'sink': { + 'class': 'logging.handlers.QueueHandler', + 'queue': mp.get_context('spawn').Queue(), + }, + }, + 'root': { + 'handlers': ['sink'], + 'level': 'DEBUG', + }, + } + logging.config.dictConfig(config) + + # gh-118868: check if kwargs are passed to logging QueueHandler + def test_kwargs_passing(self): + class CustomQueueHandler(logging.handlers.QueueHandler): + def __init__(self, *args, **kwargs): + super().__init__(queue.Queue()) + self.custom_kwargs = kwargs + + custom_kwargs = {'foo': 'bar'} + + config = { + 'version': 1, + 'handlers': { + 'custom': { + 'class': CustomQueueHandler, + **custom_kwargs + }, + }, + 'root': { + 'level': 'DEBUG', + 'handlers': ['custom'] + } + } + + logging.config.dictConfig(config) + + handler = logging.getHandlerByName('custom') + self.assertEqual(handler.custom_kwargs, custom_kwargs) + + +class ManagerTest(BaseTest): + def test_manager_loggerclass(self): + logged = [] + + class MyLogger(logging.Logger): + def _log(self, level, msg, args, exc_info=None, extra=None): + logged.append(msg) + + man = logging.Manager(None) + self.assertRaises(TypeError, man.setLoggerClass, int) + man.setLoggerClass(MyLogger) + logger = man.getLogger('test') + logger.warning('should appear in logged') + logging.warning('should not appear in logged') + + self.assertEqual(logged, ['should appear in logged']) + + def test_set_log_record_factory(self): + man = logging.Manager(None) + expected = object() + man.setLogRecordFactory(expected) + self.assertEqual(man.logRecordFactory, expected) + +class ChildLoggerTest(BaseTest): + def test_child_loggers(self): + r = logging.getLogger() + l1 = logging.getLogger('abc') + l2 = logging.getLogger('def.ghi') + c1 = r.getChild('xyz') + c2 = r.getChild('uvw.xyz') + self.assertIs(c1, logging.getLogger('xyz')) + self.assertIs(c2, logging.getLogger('uvw.xyz')) + c1 = l1.getChild('def') + c2 = c1.getChild('ghi') + c3 = l1.getChild('def.ghi') + self.assertIs(c1, logging.getLogger('abc.def')) + self.assertIs(c2, logging.getLogger('abc.def.ghi')) + self.assertIs(c2, c3) + + def test_get_children(self): + r = logging.getLogger() + l1 = logging.getLogger('foo') + l2 = logging.getLogger('foo.bar') + l3 = logging.getLogger('foo.bar.baz.bozz') + l4 = logging.getLogger('bar') + kids = r.getChildren() + expected = {l1, l4} + self.assertEqual(expected, kids & expected) # might be other kids for root + self.assertNotIn(l2, expected) + kids = l1.getChildren() + self.assertEqual({l2}, kids) + kids = l2.getChildren() + self.assertEqual(set(), kids) + +class DerivedLogRecord(logging.LogRecord): + pass + +class LogRecordFactoryTest(BaseTest): + + def setUp(self): + class CheckingFilter(logging.Filter): + def __init__(self, cls): + self.cls = cls + + def filter(self, record): + t = type(record) + if t is not self.cls: + msg = 'Unexpected LogRecord type %s, expected %s' % (t, + self.cls) + raise TypeError(msg) + return True + + BaseTest.setUp(self) + self.filter = CheckingFilter(DerivedLogRecord) + self.root_logger.addFilter(self.filter) + self.orig_factory = logging.getLogRecordFactory() + + def tearDown(self): + self.root_logger.removeFilter(self.filter) + BaseTest.tearDown(self) + logging.setLogRecordFactory(self.orig_factory) + + def test_logrecord_class(self): + self.assertRaises(TypeError, self.root_logger.warning, + self.next_message()) + logging.setLogRecordFactory(DerivedLogRecord) + self.root_logger.error(self.next_message()) + self.assert_log_lines([ + ('root', 'ERROR', '2'), + ]) + + +@threading_helper.requires_working_threading() +class QueueHandlerTest(BaseTest): + # Do not bother with a logger name group. + expected_log_pat = r"^[\w.]+ -> (\w+): (\d+)$" + + def setUp(self): + BaseTest.setUp(self) + self.queue = queue.Queue(-1) + self.que_hdlr = logging.handlers.QueueHandler(self.queue) + self.name = 'que' + self.que_logger = logging.getLogger('que') + self.que_logger.propagate = False + self.que_logger.setLevel(logging.WARNING) + self.que_logger.addHandler(self.que_hdlr) + + def tearDown(self): + self.que_hdlr.close() + BaseTest.tearDown(self) + + def test_queue_handler(self): + self.que_logger.debug(self.next_message()) + self.assertRaises(queue.Empty, self.queue.get_nowait) + self.que_logger.info(self.next_message()) + self.assertRaises(queue.Empty, self.queue.get_nowait) + msg = self.next_message() + self.que_logger.warning(msg) + data = self.queue.get_nowait() + self.assertTrue(isinstance(data, logging.LogRecord)) + self.assertEqual(data.name, self.que_logger.name) + self.assertEqual((data.msg, data.args), (msg, None)) + + def test_formatting(self): + msg = self.next_message() + levelname = logging.getLevelName(logging.WARNING) + log_format_str = '{name} -> {levelname}: {message}' + formatted_msg = log_format_str.format(name=self.name, + levelname=levelname, message=msg) + formatter = logging.Formatter(self.log_format) + self.que_hdlr.setFormatter(formatter) + self.que_logger.warning(msg) + log_record = self.queue.get_nowait() + self.assertEqual(formatted_msg, log_record.msg) + self.assertEqual(formatted_msg, log_record.message) + + @unittest.skipUnless(hasattr(logging.handlers, 'QueueListener'), + 'logging.handlers.QueueListener required for this test') + def test_queue_listener(self): + handler = TestHandler(support.Matcher()) + listener = logging.handlers.QueueListener(self.queue, handler) + listener.start() + try: + self.que_logger.warning(self.next_message()) + self.que_logger.error(self.next_message()) + self.que_logger.critical(self.next_message()) + finally: + listener.stop() + self.assertTrue(handler.matches(levelno=logging.WARNING, message='1')) + self.assertTrue(handler.matches(levelno=logging.ERROR, message='2')) + self.assertTrue(handler.matches(levelno=logging.CRITICAL, message='3')) + handler.close() + + # Now test with respect_handler_level set + + handler = TestHandler(support.Matcher()) + handler.setLevel(logging.CRITICAL) + listener = logging.handlers.QueueListener(self.queue, handler, + respect_handler_level=True) + listener.start() + try: + self.que_logger.warning(self.next_message()) + self.que_logger.error(self.next_message()) + self.que_logger.critical(self.next_message()) + finally: + listener.stop() + self.assertFalse(handler.matches(levelno=logging.WARNING, message='4')) + self.assertFalse(handler.matches(levelno=logging.ERROR, message='5')) + self.assertTrue(handler.matches(levelno=logging.CRITICAL, message='6')) + handler.close() + + @unittest.skipUnless(hasattr(logging.handlers, 'QueueListener'), + 'logging.handlers.QueueListener required for this test') + def test_queue_listener_with_StreamHandler(self): + # Test that traceback and stack-info only appends once (bpo-34334, bpo-46755). + listener = logging.handlers.QueueListener(self.queue, self.root_hdlr) + listener.start() + try: + 1 / 0 + except ZeroDivisionError as e: + exc = e + self.que_logger.exception(self.next_message(), exc_info=exc) + self.que_logger.error(self.next_message(), stack_info=True) + listener.stop() + self.assertEqual(self.stream.getvalue().strip().count('Traceback'), 1) + self.assertEqual(self.stream.getvalue().strip().count('Stack'), 1) + + @unittest.skipUnless(hasattr(logging.handlers, 'QueueListener'), + 'logging.handlers.QueueListener required for this test') + def test_queue_listener_with_multiple_handlers(self): + # Test that queue handler format doesn't affect other handler formats (bpo-35726). + self.que_hdlr.setFormatter(self.root_formatter) + self.que_logger.addHandler(self.root_hdlr) + + listener = logging.handlers.QueueListener(self.queue, self.que_hdlr) + listener.start() + self.que_logger.error("error") + listener.stop() + self.assertEqual(self.stream.getvalue().strip(), "que -> ERROR: error") + +if hasattr(logging.handlers, 'QueueListener'): + import multiprocessing + from unittest.mock import patch + + @threading_helper.requires_working_threading() + class QueueListenerTest(BaseTest): + """ + Tests based on patch submitted for issue #27930. Ensure that + QueueListener handles all log messages. + """ + + repeat = 20 + + @staticmethod + def setup_and_log(log_queue, ident): + """ + Creates a logger with a QueueHandler that logs to a queue read by a + QueueListener. Starts the listener, logs five messages, and stops + the listener. + """ + logger = logging.getLogger('test_logger_with_id_%s' % ident) + logger.setLevel(logging.DEBUG) + handler = logging.handlers.QueueHandler(log_queue) + logger.addHandler(handler) + listener = logging.handlers.QueueListener(log_queue) + listener.start() + + logger.info('one') + logger.info('two') + logger.info('three') + logger.info('four') + logger.info('five') + + listener.stop() + logger.removeHandler(handler) + handler.close() + + @patch.object(logging.handlers.QueueListener, 'handle') + def test_handle_called_with_queue_queue(self, mock_handle): + for i in range(self.repeat): + log_queue = queue.Queue() + self.setup_and_log(log_queue, '%s_%s' % (self.id(), i)) + self.assertEqual(mock_handle.call_count, 5 * self.repeat, + 'correct number of handled log messages') + + @patch.object(logging.handlers.QueueListener, 'handle') + def test_handle_called_with_mp_queue(self, mock_handle): + # bpo-28668: The multiprocessing (mp) module is not functional + # when the mp.synchronize module cannot be imported. + support.skip_if_broken_multiprocessing_synchronize() + for i in range(self.repeat): + log_queue = multiprocessing.Queue() + self.setup_and_log(log_queue, '%s_%s' % (self.id(), i)) + log_queue.close() + log_queue.join_thread() + self.assertEqual(mock_handle.call_count, 5 * self.repeat, + 'correct number of handled log messages') + + @staticmethod + def get_all_from_queue(log_queue): + try: + while True: + yield log_queue.get_nowait() + except queue.Empty: + return [] + + def test_no_messages_in_queue_after_stop(self): + """ + Five messages are logged then the QueueListener is stopped. This + test then gets everything off the queue. Failure of this test + indicates that messages were not registered on the queue until + _after_ the QueueListener stopped. + """ + # bpo-28668: The multiprocessing (mp) module is not functional + # when the mp.synchronize module cannot be imported. + support.skip_if_broken_multiprocessing_synchronize() + for i in range(self.repeat): + queue = multiprocessing.Queue() + self.setup_and_log(queue, '%s_%s' %(self.id(), i)) + # time.sleep(1) + items = list(self.get_all_from_queue(queue)) + queue.close() + queue.join_thread() + + expected = [[], [logging.handlers.QueueListener._sentinel]] + self.assertIn(items, expected, + 'Found unexpected messages in queue: %s' % ( + [m.msg if isinstance(m, logging.LogRecord) + else m for m in items])) + + def test_calls_task_done_after_stop(self): + # Issue 36813: Make sure queue.join does not deadlock. + log_queue = queue.Queue() + listener = logging.handlers.QueueListener(log_queue) + listener.start() + listener.stop() + with self.assertRaises(ValueError): + # Make sure all tasks are done and .join won't block. + log_queue.task_done() + + +ZERO = datetime.timedelta(0) + +class UTC(datetime.tzinfo): + def utcoffset(self, dt): + return ZERO + + dst = utcoffset + + def tzname(self, dt): + return 'UTC' + +utc = UTC() + +class AssertErrorMessage: + + def assert_error_message(self, exception, message, *args, **kwargs): + try: + self.assertRaises((), *args, **kwargs) + except exception as e: + self.assertEqual(message, str(e)) + +class FormatterTest(unittest.TestCase, AssertErrorMessage): + def setUp(self): + self.common = { + 'name': 'formatter.test', + 'level': logging.DEBUG, + 'pathname': os.path.join('path', 'to', 'dummy.ext'), + 'lineno': 42, + 'exc_info': None, + 'func': None, + 'msg': 'Message with %d %s', + 'args': (2, 'placeholders'), + } + self.variants = { + 'custom': { + 'custom': 1234 + } + } + + def get_record(self, name=None): + result = dict(self.common) + if name is not None: + result.update(self.variants[name]) + return logging.makeLogRecord(result) + + def test_percent(self): + # Test %-formatting + r = self.get_record() + f = logging.Formatter('${%(message)s}') + self.assertEqual(f.format(r), '${Message with 2 placeholders}') + f = logging.Formatter('%(random)s') + self.assertRaises(ValueError, f.format, r) + self.assertFalse(f.usesTime()) + f = logging.Formatter('%(asctime)s') + self.assertTrue(f.usesTime()) + f = logging.Formatter('%(asctime)-15s') + self.assertTrue(f.usesTime()) + f = logging.Formatter('%(asctime)#15s') + self.assertTrue(f.usesTime()) + + def test_braces(self): + # Test {}-formatting + r = self.get_record() + f = logging.Formatter('$%{message}%$', style='{') + self.assertEqual(f.format(r), '$%Message with 2 placeholders%$') + f = logging.Formatter('{random}', style='{') + self.assertRaises(ValueError, f.format, r) + f = logging.Formatter("{message}", style='{') + self.assertFalse(f.usesTime()) + f = logging.Formatter('{asctime}', style='{') + self.assertTrue(f.usesTime()) + f = logging.Formatter('{asctime!s:15}', style='{') + self.assertTrue(f.usesTime()) + f = logging.Formatter('{asctime:15}', style='{') + self.assertTrue(f.usesTime()) + + def test_dollars(self): + # Test $-formatting + r = self.get_record() + f = logging.Formatter('${message}', style='$') + self.assertEqual(f.format(r), 'Message with 2 placeholders') + f = logging.Formatter('$message', style='$') + self.assertEqual(f.format(r), 'Message with 2 placeholders') + f = logging.Formatter('$$%${message}%$$', style='$') + self.assertEqual(f.format(r), '$%Message with 2 placeholders%$') + f = logging.Formatter('${random}', style='$') + self.assertRaises(ValueError, f.format, r) + self.assertFalse(f.usesTime()) + f = logging.Formatter('${asctime}', style='$') + self.assertTrue(f.usesTime()) + f = logging.Formatter('$asctime', style='$') + self.assertTrue(f.usesTime()) + f = logging.Formatter('${message}', style='$') + self.assertFalse(f.usesTime()) + f = logging.Formatter('${asctime}--', style='$') + self.assertTrue(f.usesTime()) + + # TODO: RustPython + @unittest.expectedFailure + def test_format_validate(self): + # Check correct formatting + # Percentage style + f = logging.Formatter("%(levelname)-15s - %(message) 5s - %(process)03d - %(module) - %(asctime)*.3s") + self.assertEqual(f._fmt, "%(levelname)-15s - %(message) 5s - %(process)03d - %(module) - %(asctime)*.3s") + f = logging.Formatter("%(asctime)*s - %(asctime)*.3s - %(process)-34.33o") + self.assertEqual(f._fmt, "%(asctime)*s - %(asctime)*.3s - %(process)-34.33o") + f = logging.Formatter("%(process)#+027.23X") + self.assertEqual(f._fmt, "%(process)#+027.23X") + f = logging.Formatter("%(foo)#.*g") + self.assertEqual(f._fmt, "%(foo)#.*g") + + # StrFormat Style + f = logging.Formatter("$%{message}%$ - {asctime!a:15} - {customfield['key']}", style="{") + self.assertEqual(f._fmt, "$%{message}%$ - {asctime!a:15} - {customfield['key']}") + f = logging.Formatter("{process:.2f} - {custom.f:.4f}", style="{") + self.assertEqual(f._fmt, "{process:.2f} - {custom.f:.4f}") + f = logging.Formatter("{customfield!s:#<30}", style="{") + self.assertEqual(f._fmt, "{customfield!s:#<30}") + f = logging.Formatter("{message!r}", style="{") + self.assertEqual(f._fmt, "{message!r}") + f = logging.Formatter("{message!s}", style="{") + self.assertEqual(f._fmt, "{message!s}") + f = logging.Formatter("{message!a}", style="{") + self.assertEqual(f._fmt, "{message!a}") + f = logging.Formatter("{process!r:4.2}", style="{") + self.assertEqual(f._fmt, "{process!r:4.2}") + f = logging.Formatter("{process!s:<#30,.12f}- {custom:=+#30,.1d} - {module:^30}", style="{") + self.assertEqual(f._fmt, "{process!s:<#30,.12f}- {custom:=+#30,.1d} - {module:^30}") + f = logging.Formatter("{process!s:{w},.{p}}", style="{") + self.assertEqual(f._fmt, "{process!s:{w},.{p}}") + f = logging.Formatter("{foo:12.{p}}", style="{") + self.assertEqual(f._fmt, "{foo:12.{p}}") + f = logging.Formatter("{foo:{w}.6}", style="{") + self.assertEqual(f._fmt, "{foo:{w}.6}") + f = logging.Formatter("{foo[0].bar[1].baz}", style="{") + self.assertEqual(f._fmt, "{foo[0].bar[1].baz}") + f = logging.Formatter("{foo[k1].bar[k2].baz}", style="{") + self.assertEqual(f._fmt, "{foo[k1].bar[k2].baz}") + f = logging.Formatter("{12[k1].bar[k2].baz}", style="{") + self.assertEqual(f._fmt, "{12[k1].bar[k2].baz}") + + # Dollar style + f = logging.Formatter("${asctime} - $message", style="$") + self.assertEqual(f._fmt, "${asctime} - $message") + f = logging.Formatter("$bar $$", style="$") + self.assertEqual(f._fmt, "$bar $$") + f = logging.Formatter("$bar $$$$", style="$") + self.assertEqual(f._fmt, "$bar $$$$") # this would print two $($$) + + # Testing when ValueError being raised from incorrect format + # Percentage Style + self.assertRaises(ValueError, logging.Formatter, "%(asctime)Z") + self.assertRaises(ValueError, logging.Formatter, "%(asctime)b") + self.assertRaises(ValueError, logging.Formatter, "%(asctime)*") + self.assertRaises(ValueError, logging.Formatter, "%(asctime)*3s") + self.assertRaises(ValueError, logging.Formatter, "%(asctime)_") + self.assertRaises(ValueError, logging.Formatter, '{asctime}') + self.assertRaises(ValueError, logging.Formatter, '${message}') + self.assertRaises(ValueError, logging.Formatter, '%(foo)#12.3*f') # with both * and decimal number as precision + self.assertRaises(ValueError, logging.Formatter, '%(foo)0*.8*f') + + # StrFormat Style + # Testing failure for '-' in field name + self.assert_error_message( + ValueError, + "invalid format: invalid field name/expression: 'name-thing'", + logging.Formatter, "{name-thing}", style="{" + ) + # Testing failure for style mismatch + self.assert_error_message( + ValueError, + "invalid format: no fields", + logging.Formatter, '%(asctime)s', style='{' + ) + # Testing failure for invalid conversion + self.assert_error_message( + ValueError, + "invalid conversion: 'Z'" + ) + self.assertRaises(ValueError, logging.Formatter, '{asctime!s:#30,15f}', style='{') + self.assert_error_message( + ValueError, + "invalid format: expected ':' after conversion specifier", + logging.Formatter, '{asctime!aa:15}', style='{' + ) + # Testing failure for invalid spec + self.assert_error_message( + ValueError, + "invalid format: bad specifier: '.2ff'", + logging.Formatter, '{process:.2ff}', style='{' + ) + self.assertRaises(ValueError, logging.Formatter, '{process:.2Z}', style='{') + self.assertRaises(ValueError, logging.Formatter, '{process!s:<##30,12g}', style='{') + self.assertRaises(ValueError, logging.Formatter, '{process!s:<#30#,12g}', style='{') + self.assertRaises(ValueError, logging.Formatter, '{process!s:{{w}},{{p}}}', style='{') + # Testing failure for mismatch braces + self.assert_error_message( + ValueError, + "invalid format: expected '}' before end of string", + logging.Formatter, '{process', style='{' + ) + self.assert_error_message( + ValueError, + "invalid format: Single '}' encountered in format string", + logging.Formatter, 'process}', style='{' + ) + self.assertRaises(ValueError, logging.Formatter, '{{foo!r:4.2}', style='{') + self.assertRaises(ValueError, logging.Formatter, '{{foo!r:4.2}}', style='{') + self.assertRaises(ValueError, logging.Formatter, '{foo/bar}', style='{') + self.assertRaises(ValueError, logging.Formatter, '{foo:{{w}}.{{p}}}}', style='{') + self.assertRaises(ValueError, logging.Formatter, '{foo!X:{{w}}.{{p}}}', style='{') + self.assertRaises(ValueError, logging.Formatter, '{foo!a:random}', style='{') + self.assertRaises(ValueError, logging.Formatter, '{foo!a:ran{dom}', style='{') + self.assertRaises(ValueError, logging.Formatter, '{foo!a:ran{d}om}', style='{') + self.assertRaises(ValueError, logging.Formatter, '{foo.!a:d}', style='{') + + # Dollar style + # Testing failure for mismatch bare $ + self.assert_error_message( + ValueError, + "invalid format: bare \'$\' not allowed", + logging.Formatter, '$bar $$$', style='$' + ) + self.assert_error_message( + ValueError, + "invalid format: bare \'$\' not allowed", + logging.Formatter, 'bar $', style='$' + ) + self.assert_error_message( + ValueError, + "invalid format: bare \'$\' not allowed", + logging.Formatter, 'foo $.', style='$' + ) + # Testing failure for mismatch style + self.assert_error_message( + ValueError, + "invalid format: no fields", + logging.Formatter, '{asctime}', style='$' + ) + self.assertRaises(ValueError, logging.Formatter, '%(asctime)s', style='$') + + # Testing failure for incorrect fields + self.assert_error_message( + ValueError, + "invalid format: no fields", + logging.Formatter, 'foo', style='$' + ) + self.assertRaises(ValueError, logging.Formatter, '${asctime', style='$') + + def test_defaults_parameter(self): + fmts = ['%(custom)s %(message)s', '{custom} {message}', '$custom $message'] + styles = ['%', '{', '$'] + for fmt, style in zip(fmts, styles): + f = logging.Formatter(fmt, style=style, defaults={'custom': 'Default'}) + r = self.get_record() + self.assertEqual(f.format(r), 'Default Message with 2 placeholders') + r = self.get_record("custom") + self.assertEqual(f.format(r), '1234 Message with 2 placeholders') + + # Without default + f = logging.Formatter(fmt, style=style) + r = self.get_record() + self.assertRaises(ValueError, f.format, r) + + # Non-existing default is ignored + f = logging.Formatter(fmt, style=style, defaults={'Non-existing': 'Default'}) + r = self.get_record("custom") + self.assertEqual(f.format(r), '1234 Message with 2 placeholders') + + def test_invalid_style(self): + self.assertRaises(ValueError, logging.Formatter, None, None, 'x') + + # TODO: RustPython + @unittest.expectedFailure + def test_time(self): + r = self.get_record() + dt = datetime.datetime(1993, 4, 21, 8, 3, 0, 0, utc) + # We use None to indicate we want the local timezone + # We're essentially converting a UTC time to local time + r.created = time.mktime(dt.astimezone(None).timetuple()) + r.msecs = 123 + f = logging.Formatter('%(asctime)s %(message)s') + f.converter = time.gmtime + self.assertEqual(f.formatTime(r), '1993-04-21 08:03:00,123') + self.assertEqual(f.formatTime(r, '%Y:%d'), '1993:21') + f.format(r) + self.assertEqual(r.asctime, '1993-04-21 08:03:00,123') + + # TODO: RustPython + @unittest.expectedFailure + def test_default_msec_format_none(self): + class NoMsecFormatter(logging.Formatter): + default_msec_format = None + default_time_format = '%d/%m/%Y %H:%M:%S' + + r = self.get_record() + dt = datetime.datetime(1993, 4, 21, 8, 3, 0, 123, utc) + r.created = time.mktime(dt.astimezone(None).timetuple()) + f = NoMsecFormatter() + f.converter = time.gmtime + self.assertEqual(f.formatTime(r), '21/04/1993 08:03:00') + + def test_issue_89047(self): + f = logging.Formatter(fmt='{asctime}.{msecs:03.0f} {message}', style='{', datefmt="%Y-%m-%d %H:%M:%S") + for i in range(2500): + time.sleep(0.0004) + r = logging.makeLogRecord({'msg': 'Message %d' % (i + 1)}) + s = f.format(r) + self.assertNotIn('.1000', s) + + +class TestBufferingFormatter(logging.BufferingFormatter): + def formatHeader(self, records): + return '[(%d)' % len(records) + + def formatFooter(self, records): + return '(%d)]' % len(records) + +class BufferingFormatterTest(unittest.TestCase): + def setUp(self): + self.records = [ + logging.makeLogRecord({'msg': 'one'}), + logging.makeLogRecord({'msg': 'two'}), + ] + + def test_default(self): + f = logging.BufferingFormatter() + self.assertEqual('', f.format([])) + self.assertEqual('onetwo', f.format(self.records)) + + def test_custom(self): + f = TestBufferingFormatter() + self.assertEqual('[(2)onetwo(2)]', f.format(self.records)) + lf = logging.Formatter('<%(message)s>') + f = TestBufferingFormatter(lf) + self.assertEqual('[(2)(2)]', f.format(self.records)) + +class ExceptionTest(BaseTest): + def test_formatting(self): + r = self.root_logger + h = RecordingHandler() + r.addHandler(h) + try: + raise RuntimeError('deliberate mistake') + except: + logging.exception('failed', stack_info=True) + r.removeHandler(h) + h.close() + r = h.records[0] + self.assertTrue(r.exc_text.startswith('Traceback (most recent ' + 'call last):\n')) + self.assertTrue(r.exc_text.endswith('\nRuntimeError: ' + 'deliberate mistake')) + self.assertTrue(r.stack_info.startswith('Stack (most recent ' + 'call last):\n')) + self.assertTrue(r.stack_info.endswith('logging.exception(\'failed\', ' + 'stack_info=True)')) + + +class LastResortTest(BaseTest): + def test_last_resort(self): + # Test the last resort handler + root = self.root_logger + root.removeHandler(self.root_hdlr) + old_lastresort = logging.lastResort + old_raise_exceptions = logging.raiseExceptions + + try: + with support.captured_stderr() as stderr: + root.debug('This should not appear') + self.assertEqual(stderr.getvalue(), '') + root.warning('Final chance!') + self.assertEqual(stderr.getvalue(), 'Final chance!\n') + + # No handlers and no last resort, so 'No handlers' message + logging.lastResort = None + with support.captured_stderr() as stderr: + root.warning('Final chance!') + msg = 'No handlers could be found for logger "root"\n' + self.assertEqual(stderr.getvalue(), msg) + + # 'No handlers' message only printed once + with support.captured_stderr() as stderr: + root.warning('Final chance!') + self.assertEqual(stderr.getvalue(), '') + + # If raiseExceptions is False, no message is printed + root.manager.emittedNoHandlerWarning = False + logging.raiseExceptions = False + with support.captured_stderr() as stderr: + root.warning('Final chance!') + self.assertEqual(stderr.getvalue(), '') + finally: + root.addHandler(self.root_hdlr) + logging.lastResort = old_lastresort + logging.raiseExceptions = old_raise_exceptions + + +class FakeHandler: + + def __init__(self, identifier, called): + for method in ('acquire', 'flush', 'close', 'release'): + setattr(self, method, self.record_call(identifier, method, called)) + + def record_call(self, identifier, method_name, called): + def inner(): + called.append('{} - {}'.format(identifier, method_name)) + return inner + + +class RecordingHandler(logging.NullHandler): + + def __init__(self, *args, **kwargs): + super(RecordingHandler, self).__init__(*args, **kwargs) + self.records = [] + + def handle(self, record): + """Keep track of all the emitted records.""" + self.records.append(record) + + +class ShutdownTest(BaseTest): + + """Test suite for the shutdown method.""" + + def setUp(self): + super(ShutdownTest, self).setUp() + self.called = [] + + raise_exceptions = logging.raiseExceptions + self.addCleanup(setattr, logging, 'raiseExceptions', raise_exceptions) + + def raise_error(self, error): + def inner(): + raise error() + return inner + + def test_no_failure(self): + # create some fake handlers + handler0 = FakeHandler(0, self.called) + handler1 = FakeHandler(1, self.called) + handler2 = FakeHandler(2, self.called) + + # create live weakref to those handlers + handlers = map(logging.weakref.ref, [handler0, handler1, handler2]) + + logging.shutdown(handlerList=list(handlers)) + + expected = ['2 - acquire', '2 - flush', '2 - close', '2 - release', + '1 - acquire', '1 - flush', '1 - close', '1 - release', + '0 - acquire', '0 - flush', '0 - close', '0 - release'] + self.assertEqual(expected, self.called) + + def _test_with_failure_in_method(self, method, error): + handler = FakeHandler(0, self.called) + setattr(handler, method, self.raise_error(error)) + handlers = [logging.weakref.ref(handler)] + + logging.shutdown(handlerList=list(handlers)) + + self.assertEqual('0 - release', self.called[-1]) + + def test_with_ioerror_in_acquire(self): + self._test_with_failure_in_method('acquire', OSError) + + def test_with_ioerror_in_flush(self): + self._test_with_failure_in_method('flush', OSError) + + def test_with_ioerror_in_close(self): + self._test_with_failure_in_method('close', OSError) + + def test_with_valueerror_in_acquire(self): + self._test_with_failure_in_method('acquire', ValueError) + + def test_with_valueerror_in_flush(self): + self._test_with_failure_in_method('flush', ValueError) + + def test_with_valueerror_in_close(self): + self._test_with_failure_in_method('close', ValueError) + + def test_with_other_error_in_acquire_without_raise(self): + logging.raiseExceptions = False + self._test_with_failure_in_method('acquire', IndexError) + + def test_with_other_error_in_flush_without_raise(self): + logging.raiseExceptions = False + self._test_with_failure_in_method('flush', IndexError) + + def test_with_other_error_in_close_without_raise(self): + logging.raiseExceptions = False + self._test_with_failure_in_method('close', IndexError) + + def test_with_other_error_in_acquire_with_raise(self): + logging.raiseExceptions = True + self.assertRaises(IndexError, self._test_with_failure_in_method, + 'acquire', IndexError) + + def test_with_other_error_in_flush_with_raise(self): + logging.raiseExceptions = True + self.assertRaises(IndexError, self._test_with_failure_in_method, + 'flush', IndexError) + + def test_with_other_error_in_close_with_raise(self): + logging.raiseExceptions = True + self.assertRaises(IndexError, self._test_with_failure_in_method, + 'close', IndexError) + + +class ModuleLevelMiscTest(BaseTest): + + """Test suite for some module level methods.""" + + def test_disable(self): + old_disable = logging.root.manager.disable + # confirm our assumptions are correct + self.assertEqual(old_disable, 0) + self.addCleanup(logging.disable, old_disable) + + logging.disable(83) + self.assertEqual(logging.root.manager.disable, 83) + + self.assertRaises(ValueError, logging.disable, "doesnotexists") + + class _NotAnIntOrString: + pass + + self.assertRaises(TypeError, logging.disable, _NotAnIntOrString()) + + logging.disable("WARN") + + # test the default value introduced in 3.7 + # (Issue #28524) + logging.disable() + self.assertEqual(logging.root.manager.disable, logging.CRITICAL) + + def _test_log(self, method, level=None): + called = [] + support.patch(self, logging, 'basicConfig', + lambda *a, **kw: called.append((a, kw))) + + recording = RecordingHandler() + logging.root.addHandler(recording) + + log_method = getattr(logging, method) + if level is not None: + log_method(level, "test me: %r", recording) + else: + log_method("test me: %r", recording) + + self.assertEqual(len(recording.records), 1) + record = recording.records[0] + self.assertEqual(record.getMessage(), "test me: %r" % recording) + + expected_level = level if level is not None else getattr(logging, method.upper()) + self.assertEqual(record.levelno, expected_level) + + # basicConfig was not called! + self.assertEqual(called, []) + + def test_log(self): + self._test_log('log', logging.ERROR) + + def test_debug(self): + self._test_log('debug') + + def test_info(self): + self._test_log('info') + + def test_warning(self): + self._test_log('warning') + + def test_error(self): + self._test_log('error') + + def test_critical(self): + self._test_log('critical') + + def test_set_logger_class(self): + self.assertRaises(TypeError, logging.setLoggerClass, object) + + class MyLogger(logging.Logger): + pass + + logging.setLoggerClass(MyLogger) + self.assertEqual(logging.getLoggerClass(), MyLogger) + + logging.setLoggerClass(logging.Logger) + self.assertEqual(logging.getLoggerClass(), logging.Logger) + + def test_subclass_logger_cache(self): + # bpo-37258 + message = [] + + class MyLogger(logging.getLoggerClass()): + def __init__(self, name='MyLogger', level=logging.NOTSET): + super().__init__(name, level) + message.append('initialized') + + logging.setLoggerClass(MyLogger) + logger = logging.getLogger('just_some_logger') + self.assertEqual(message, ['initialized']) + stream = io.StringIO() + h = logging.StreamHandler(stream) + logger.addHandler(h) + try: + logger.setLevel(logging.DEBUG) + logger.debug("hello") + self.assertEqual(stream.getvalue().strip(), "hello") + + stream.truncate(0) + stream.seek(0) + + logger.setLevel(logging.INFO) + logger.debug("hello") + self.assertEqual(stream.getvalue(), "") + finally: + logger.removeHandler(h) + h.close() + logging.setLoggerClass(logging.Logger) + + # TODO: RustPython + @unittest.expectedFailure + def test_logging_at_shutdown(self): + # bpo-20037: Doing text I/O late at interpreter shutdown must not crash + code = textwrap.dedent(""" + import logging + + class A: + def __del__(self): + try: + raise ValueError("some error") + except Exception: + logging.exception("exception in __del__") + + a = A() + """) + rc, out, err = assert_python_ok("-c", code) + err = err.decode() + self.assertIn("exception in __del__", err) + self.assertIn("ValueError: some error", err) + + # TODO: RustPython + @unittest.expectedFailure + def test_logging_at_shutdown_open(self): + # bpo-26789: FileHandler keeps a reference to the builtin open() + # function to be able to open or reopen the file during Python + # finalization. + filename = os_helper.TESTFN + self.addCleanup(os_helper.unlink, filename) + + code = textwrap.dedent(f""" + import builtins + import logging + + class A: + def __del__(self): + logging.error("log in __del__") + + # basicConfig() opens the file, but logging.shutdown() closes + # it at Python exit. When A.__del__() is called, + # FileHandler._open() must be called again to re-open the file. + logging.basicConfig(filename={filename!r}, encoding="utf-8") + + a = A() + + # Simulate the Python finalization which removes the builtin + # open() function. + del builtins.open + """) + assert_python_ok("-c", code) + + with open(filename, encoding="utf-8") as fp: + self.assertEqual(fp.read().rstrip(), "ERROR:root:log in __del__") + + def test_recursion_error(self): + # Issue 36272 + code = textwrap.dedent(""" + import logging + + def rec(): + logging.error("foo") + rec() + + rec() + """) + rc, out, err = assert_python_failure("-c", code) + err = err.decode() + self.assertNotIn("Cannot recover from stack overflow.", err) + self.assertEqual(rc, 1) + + def test_get_level_names_mapping(self): + mapping = logging.getLevelNamesMapping() + self.assertEqual(logging._nameToLevel, mapping) # value is equivalent + self.assertIsNot(logging._nameToLevel, mapping) # but not the internal data + new_mapping = logging.getLevelNamesMapping() # another call -> another copy + self.assertIsNot(mapping, new_mapping) # verify not the same object as before + self.assertEqual(mapping, new_mapping) # but equivalent in value + + +class LogRecordTest(BaseTest): + def test_str_rep(self): + r = logging.makeLogRecord({}) + s = str(r) + self.assertTrue(s.startswith('')) + + def test_dict_arg(self): + h = RecordingHandler() + r = logging.getLogger() + r.addHandler(h) + d = {'less' : 'more' } + logging.warning('less is %(less)s', d) + self.assertIs(h.records[0].args, d) + self.assertEqual(h.records[0].message, 'less is more') + r.removeHandler(h) + h.close() + + @staticmethod # pickled as target of child process in the following test + def _extract_logrecord_process_name(key, logMultiprocessing, conn=None): + prev_logMultiprocessing = logging.logMultiprocessing + logging.logMultiprocessing = logMultiprocessing + try: + import multiprocessing as mp + name = mp.current_process().name + + r1 = logging.makeLogRecord({'msg': f'msg1_{key}'}) + + # https://bugs.python.org/issue45128 + with support.swap_item(sys.modules, 'multiprocessing', None): + r2 = logging.makeLogRecord({'msg': f'msg2_{key}'}) + + results = {'processName' : name, + 'r1.processName': r1.processName, + 'r2.processName': r2.processName, + } + finally: + logging.logMultiprocessing = prev_logMultiprocessing + if conn: + conn.send(results) + else: + return results + + def test_multiprocessing(self): + support.skip_if_broken_multiprocessing_synchronize() + multiprocessing_imported = 'multiprocessing' in sys.modules + try: + # logMultiprocessing is True by default + self.assertEqual(logging.logMultiprocessing, True) + + LOG_MULTI_PROCESSING = True + # When logMultiprocessing == True: + # In the main process processName = 'MainProcess' + r = logging.makeLogRecord({}) + self.assertEqual(r.processName, 'MainProcess') + + results = self._extract_logrecord_process_name(1, LOG_MULTI_PROCESSING) + self.assertEqual('MainProcess', results['processName']) + self.assertEqual('MainProcess', results['r1.processName']) + self.assertEqual('MainProcess', results['r2.processName']) + + # In other processes, processName is correct when multiprocessing in imported, + # but it is (incorrectly) defaulted to 'MainProcess' otherwise (bpo-38762). + import multiprocessing + parent_conn, child_conn = multiprocessing.Pipe() + p = multiprocessing.Process( + target=self._extract_logrecord_process_name, + args=(2, LOG_MULTI_PROCESSING, child_conn,) + ) + p.start() + results = parent_conn.recv() + self.assertNotEqual('MainProcess', results['processName']) + self.assertEqual(results['processName'], results['r1.processName']) + self.assertEqual('MainProcess', results['r2.processName']) + p.join() + + finally: + if multiprocessing_imported: + import multiprocessing + + def test_optional(self): + NONE = self.assertIsNone + NOT_NONE = self.assertIsNotNone + + r = logging.makeLogRecord({}) + NOT_NONE(r.thread) + NOT_NONE(r.threadName) + NOT_NONE(r.process) + NOT_NONE(r.processName) + NONE(r.taskName) + log_threads = logging.logThreads + log_processes = logging.logProcesses + log_multiprocessing = logging.logMultiprocessing + log_asyncio_tasks = logging.logAsyncioTasks + try: + logging.logThreads = False + logging.logProcesses = False + logging.logMultiprocessing = False + logging.logAsyncioTasks = False + r = logging.makeLogRecord({}) + + NONE(r.thread) + NONE(r.threadName) + NONE(r.process) + NONE(r.processName) + NONE(r.taskName) + finally: + logging.logThreads = log_threads + logging.logProcesses = log_processes + logging.logMultiprocessing = log_multiprocessing + logging.logAsyncioTasks = log_asyncio_tasks + + async def _make_record_async(self, assertion): + r = logging.makeLogRecord({}) + assertion(r.taskName) + + @support.requires_working_socket() + def test_taskName_with_asyncio_imported(self): + try: + make_record = self._make_record_async + with asyncio.Runner() as runner: + logging.logAsyncioTasks = True + runner.run(make_record(self.assertIsNotNone)) + logging.logAsyncioTasks = False + runner.run(make_record(self.assertIsNone)) + finally: + asyncio.set_event_loop_policy(None) + + @support.requires_working_socket() + def test_taskName_without_asyncio_imported(self): + try: + make_record = self._make_record_async + with asyncio.Runner() as runner, support.swap_item(sys.modules, 'asyncio', None): + logging.logAsyncioTasks = True + runner.run(make_record(self.assertIsNone)) + logging.logAsyncioTasks = False + runner.run(make_record(self.assertIsNone)) + finally: + asyncio.set_event_loop_policy(None) + + +class BasicConfigTest(unittest.TestCase): + + """Test suite for logging.basicConfig.""" + + def setUp(self): + super(BasicConfigTest, self).setUp() + self.handlers = logging.root.handlers + self.saved_handlers = logging._handlers.copy() + self.saved_handler_list = logging._handlerList[:] + self.original_logging_level = logging.root.level + self.addCleanup(self.cleanup) + logging.root.handlers = [] + + def tearDown(self): + for h in logging.root.handlers[:]: + logging.root.removeHandler(h) + h.close() + super(BasicConfigTest, self).tearDown() + + def cleanup(self): + setattr(logging.root, 'handlers', self.handlers) + logging._handlers.clear() + logging._handlers.update(self.saved_handlers) + logging._handlerList[:] = self.saved_handler_list + logging.root.setLevel(self.original_logging_level) + + def test_no_kwargs(self): + logging.basicConfig() + + # handler defaults to a StreamHandler to sys.stderr + self.assertEqual(len(logging.root.handlers), 1) + handler = logging.root.handlers[0] + self.assertIsInstance(handler, logging.StreamHandler) + self.assertEqual(handler.stream, sys.stderr) + + formatter = handler.formatter + # format defaults to logging.BASIC_FORMAT + self.assertEqual(formatter._style._fmt, logging.BASIC_FORMAT) + # datefmt defaults to None + self.assertIsNone(formatter.datefmt) + # style defaults to % + self.assertIsInstance(formatter._style, logging.PercentStyle) + + # level is not explicitly set + self.assertEqual(logging.root.level, self.original_logging_level) + + def test_strformatstyle(self): + with support.captured_stdout() as output: + logging.basicConfig(stream=sys.stdout, style="{") + logging.error("Log an error") + sys.stdout.seek(0) + self.assertEqual(output.getvalue().strip(), + "ERROR:root:Log an error") + + def test_stringtemplatestyle(self): + with support.captured_stdout() as output: + logging.basicConfig(stream=sys.stdout, style="$") + logging.error("Log an error") + sys.stdout.seek(0) + self.assertEqual(output.getvalue().strip(), + "ERROR:root:Log an error") + + def test_filename(self): + + def cleanup(h1, h2, fn): + h1.close() + h2.close() + os.remove(fn) + + logging.basicConfig(filename='test.log', encoding='utf-8') + + self.assertEqual(len(logging.root.handlers), 1) + handler = logging.root.handlers[0] + self.assertIsInstance(handler, logging.FileHandler) + + expected = logging.FileHandler('test.log', 'a', encoding='utf-8') + self.assertEqual(handler.stream.mode, expected.stream.mode) + self.assertEqual(handler.stream.name, expected.stream.name) + self.addCleanup(cleanup, handler, expected, 'test.log') + + def test_filemode(self): + + def cleanup(h1, h2, fn): + h1.close() + h2.close() + os.remove(fn) + + logging.basicConfig(filename='test.log', filemode='wb') + + handler = logging.root.handlers[0] + expected = logging.FileHandler('test.log', 'wb') + self.assertEqual(handler.stream.mode, expected.stream.mode) + self.addCleanup(cleanup, handler, expected, 'test.log') + + def test_stream(self): + stream = io.StringIO() + self.addCleanup(stream.close) + logging.basicConfig(stream=stream) + + self.assertEqual(len(logging.root.handlers), 1) + handler = logging.root.handlers[0] + self.assertIsInstance(handler, logging.StreamHandler) + self.assertEqual(handler.stream, stream) + + def test_format(self): + logging.basicConfig(format='%(asctime)s - %(message)s') + + formatter = logging.root.handlers[0].formatter + self.assertEqual(formatter._style._fmt, '%(asctime)s - %(message)s') + + def test_datefmt(self): + logging.basicConfig(datefmt='bar') + + formatter = logging.root.handlers[0].formatter + self.assertEqual(formatter.datefmt, 'bar') + + def test_style(self): + logging.basicConfig(style='$') + + formatter = logging.root.handlers[0].formatter + self.assertIsInstance(formatter._style, logging.StringTemplateStyle) + + def test_level(self): + old_level = logging.root.level + self.addCleanup(logging.root.setLevel, old_level) + + logging.basicConfig(level=57) + self.assertEqual(logging.root.level, 57) + # Test that second call has no effect + logging.basicConfig(level=58) + self.assertEqual(logging.root.level, 57) + + def test_incompatible(self): + assertRaises = self.assertRaises + handlers = [logging.StreamHandler()] + stream = sys.stderr + assertRaises(ValueError, logging.basicConfig, filename='test.log', + stream=stream) + assertRaises(ValueError, logging.basicConfig, filename='test.log', + handlers=handlers) + assertRaises(ValueError, logging.basicConfig, stream=stream, + handlers=handlers) + # Issue 23207: test for invalid kwargs + assertRaises(ValueError, logging.basicConfig, loglevel=logging.INFO) + # Should pop both filename and filemode even if filename is None + logging.basicConfig(filename=None, filemode='a') + + def test_handlers(self): + handlers = [ + logging.StreamHandler(), + logging.StreamHandler(sys.stdout), + logging.StreamHandler(), + ] + f = logging.Formatter() + handlers[2].setFormatter(f) + logging.basicConfig(handlers=handlers) + self.assertIs(handlers[0], logging.root.handlers[0]) + self.assertIs(handlers[1], logging.root.handlers[1]) + self.assertIs(handlers[2], logging.root.handlers[2]) + self.assertIsNotNone(handlers[0].formatter) + self.assertIsNotNone(handlers[1].formatter) + self.assertIs(handlers[2].formatter, f) + self.assertIs(handlers[0].formatter, handlers[1].formatter) + + def test_force(self): + old_string_io = io.StringIO() + new_string_io = io.StringIO() + old_handlers = [logging.StreamHandler(old_string_io)] + new_handlers = [logging.StreamHandler(new_string_io)] + logging.basicConfig(level=logging.WARNING, handlers=old_handlers) + logging.warning('warn') + logging.info('info') + logging.debug('debug') + self.assertEqual(len(logging.root.handlers), 1) + logging.basicConfig(level=logging.INFO, handlers=new_handlers, + force=True) + logging.warning('warn') + logging.info('info') + logging.debug('debug') + self.assertEqual(len(logging.root.handlers), 1) + self.assertEqual(old_string_io.getvalue().strip(), + 'WARNING:root:warn') + self.assertEqual(new_string_io.getvalue().strip(), + 'WARNING:root:warn\nINFO:root:info') + + def test_encoding(self): + try: + encoding = 'utf-8' + logging.basicConfig(filename='test.log', encoding=encoding, + errors='strict', + format='%(message)s', level=logging.DEBUG) + + self.assertEqual(len(logging.root.handlers), 1) + handler = logging.root.handlers[0] + self.assertIsInstance(handler, logging.FileHandler) + self.assertEqual(handler.encoding, encoding) + logging.debug('The Øresund Bridge joins Copenhagen to Malmö') + finally: + handler.close() + with open('test.log', encoding='utf-8') as f: + data = f.read().strip() + os.remove('test.log') + self.assertEqual(data, + 'The Øresund Bridge joins Copenhagen to Malmö') + + def test_encoding_errors(self): + try: + encoding = 'ascii' + logging.basicConfig(filename='test.log', encoding=encoding, + errors='ignore', + format='%(message)s', level=logging.DEBUG) + + self.assertEqual(len(logging.root.handlers), 1) + handler = logging.root.handlers[0] + self.assertIsInstance(handler, logging.FileHandler) + self.assertEqual(handler.encoding, encoding) + logging.debug('The Øresund Bridge joins Copenhagen to Malmö') + finally: + handler.close() + with open('test.log', encoding='utf-8') as f: + data = f.read().strip() + os.remove('test.log') + self.assertEqual(data, 'The resund Bridge joins Copenhagen to Malm') + + def test_encoding_errors_default(self): + try: + encoding = 'ascii' + logging.basicConfig(filename='test.log', encoding=encoding, + format='%(message)s', level=logging.DEBUG) + + self.assertEqual(len(logging.root.handlers), 1) + handler = logging.root.handlers[0] + self.assertIsInstance(handler, logging.FileHandler) + self.assertEqual(handler.encoding, encoding) + self.assertEqual(handler.errors, 'backslashreplace') + logging.debug('😂: ☃️: The Øresund Bridge joins Copenhagen to Malmö') + finally: + handler.close() + with open('test.log', encoding='utf-8') as f: + data = f.read().strip() + os.remove('test.log') + self.assertEqual(data, r'\U0001f602: \u2603\ufe0f: The \xd8resund ' + r'Bridge joins Copenhagen to Malm\xf6') + + def test_encoding_errors_none(self): + # Specifying None should behave as 'strict' + try: + encoding = 'ascii' + logging.basicConfig(filename='test.log', encoding=encoding, + errors=None, + format='%(message)s', level=logging.DEBUG) + + self.assertEqual(len(logging.root.handlers), 1) + handler = logging.root.handlers[0] + self.assertIsInstance(handler, logging.FileHandler) + self.assertEqual(handler.encoding, encoding) + self.assertIsNone(handler.errors) + + message = [] + + def dummy_handle_error(record): + message.append(str(sys.exception())) + + handler.handleError = dummy_handle_error + logging.debug('The Øresund Bridge joins Copenhagen to Malmö') + self.assertTrue(message) + self.assertIn("'ascii' codec can't encode " + "character '\\xd8' in position 4:", message[0]) + finally: + handler.close() + with open('test.log', encoding='utf-8') as f: + data = f.read().strip() + os.remove('test.log') + # didn't write anything due to the encoding error + self.assertEqual(data, r'') + + @support.requires_working_socket() + def test_log_taskName(self): + async def log_record(): + logging.warning('hello world') + + handler = None + log_filename = make_temp_file('.log', 'test-logging-taskname-') + self.addCleanup(os.remove, log_filename) + try: + encoding = 'utf-8' + logging.basicConfig(filename=log_filename, errors='strict', + encoding=encoding, level=logging.WARNING, + format='%(taskName)s - %(message)s') + + self.assertEqual(len(logging.root.handlers), 1) + handler = logging.root.handlers[0] + self.assertIsInstance(handler, logging.FileHandler) + + with asyncio.Runner(debug=True) as runner: + logging.logAsyncioTasks = True + runner.run(log_record()) + with open(log_filename, encoding='utf-8') as f: + data = f.read().strip() + self.assertRegex(data, r'Task-\d+ - hello world') + finally: + asyncio.set_event_loop_policy(None) + if handler: + handler.close() + + + def _test_log(self, method, level=None): + # logging.root has no handlers so basicConfig should be called + called = [] + + old_basic_config = logging.basicConfig + def my_basic_config(*a, **kw): + old_basic_config() + old_level = logging.root.level + logging.root.setLevel(100) # avoid having messages in stderr + self.addCleanup(logging.root.setLevel, old_level) + called.append((a, kw)) + + support.patch(self, logging, 'basicConfig', my_basic_config) + + log_method = getattr(logging, method) + if level is not None: + log_method(level, "test me") + else: + log_method("test me") + + # basicConfig was called with no arguments + self.assertEqual(called, [((), {})]) + + def test_log(self): + self._test_log('log', logging.WARNING) + + def test_debug(self): + self._test_log('debug') + + def test_info(self): + self._test_log('info') + + def test_warning(self): + self._test_log('warning') + + def test_error(self): + self._test_log('error') + + def test_critical(self): + self._test_log('critical') + + +class LoggerAdapterTest(unittest.TestCase): + def setUp(self): + super(LoggerAdapterTest, self).setUp() + old_handler_list = logging._handlerList[:] + + self.recording = RecordingHandler() + self.logger = logging.root + self.logger.addHandler(self.recording) + self.addCleanup(self.logger.removeHandler, self.recording) + self.addCleanup(self.recording.close) + + def cleanup(): + logging._handlerList[:] = old_handler_list + + self.addCleanup(cleanup) + self.addCleanup(logging.shutdown) + self.adapter = logging.LoggerAdapter(logger=self.logger, extra=None) + + def test_exception(self): + msg = 'testing exception: %r' + exc = None + try: + 1 / 0 + except ZeroDivisionError as e: + exc = e + self.adapter.exception(msg, self.recording) + + self.assertEqual(len(self.recording.records), 1) + record = self.recording.records[0] + self.assertEqual(record.levelno, logging.ERROR) + self.assertEqual(record.msg, msg) + self.assertEqual(record.args, (self.recording,)) + self.assertEqual(record.exc_info, + (exc.__class__, exc, exc.__traceback__)) + + def test_exception_excinfo(self): + try: + 1 / 0 + except ZeroDivisionError as e: + exc = e + + self.adapter.exception('exc_info test', exc_info=exc) + + self.assertEqual(len(self.recording.records), 1) + record = self.recording.records[0] + self.assertEqual(record.exc_info, + (exc.__class__, exc, exc.__traceback__)) + + def test_critical(self): + msg = 'critical test! %r' + self.adapter.critical(msg, self.recording) + + self.assertEqual(len(self.recording.records), 1) + record = self.recording.records[0] + self.assertEqual(record.levelno, logging.CRITICAL) + self.assertEqual(record.msg, msg) + self.assertEqual(record.args, (self.recording,)) + self.assertEqual(record.funcName, 'test_critical') + + def test_is_enabled_for(self): + old_disable = self.adapter.logger.manager.disable + self.adapter.logger.manager.disable = 33 + self.addCleanup(setattr, self.adapter.logger.manager, 'disable', + old_disable) + self.assertFalse(self.adapter.isEnabledFor(32)) + + def test_has_handlers(self): + self.assertTrue(self.adapter.hasHandlers()) + + for handler in self.logger.handlers: + self.logger.removeHandler(handler) + + self.assertFalse(self.logger.hasHandlers()) + self.assertFalse(self.adapter.hasHandlers()) + + def test_nested(self): + msg = 'Adapters can be nested, yo.' + adapter = PrefixAdapter(logger=self.logger, extra=None) + adapter_adapter = PrefixAdapter(logger=adapter, extra=None) + adapter_adapter.prefix = 'AdapterAdapter' + self.assertEqual(repr(adapter), repr(adapter_adapter)) + adapter_adapter.log(logging.CRITICAL, msg, self.recording) + self.assertEqual(len(self.recording.records), 1) + record = self.recording.records[0] + self.assertEqual(record.levelno, logging.CRITICAL) + self.assertEqual(record.msg, f"Adapter AdapterAdapter {msg}") + self.assertEqual(record.args, (self.recording,)) + self.assertEqual(record.funcName, 'test_nested') + orig_manager = adapter_adapter.manager + self.assertIs(adapter.manager, orig_manager) + self.assertIs(self.logger.manager, orig_manager) + temp_manager = object() + try: + adapter_adapter.manager = temp_manager + self.assertIs(adapter_adapter.manager, temp_manager) + self.assertIs(adapter.manager, temp_manager) + self.assertIs(self.logger.manager, temp_manager) + finally: + adapter_adapter.manager = orig_manager + self.assertIs(adapter_adapter.manager, orig_manager) + self.assertIs(adapter.manager, orig_manager) + self.assertIs(self.logger.manager, orig_manager) + + def test_styled_adapter(self): + # Test an example from the Cookbook. + records = self.recording.records + adapter = StyleAdapter(self.logger) + adapter.warning('Hello, {}!', 'world') + self.assertEqual(str(records[-1].msg), 'Hello, world!') + self.assertEqual(records[-1].funcName, 'test_styled_adapter') + adapter.log(logging.WARNING, 'Goodbye {}.', 'world') + self.assertEqual(str(records[-1].msg), 'Goodbye world.') + self.assertEqual(records[-1].funcName, 'test_styled_adapter') + + def test_nested_styled_adapter(self): + records = self.recording.records + adapter = PrefixAdapter(self.logger) + adapter.prefix = '{}' + adapter2 = StyleAdapter(adapter) + adapter2.warning('Hello, {}!', 'world') + self.assertEqual(str(records[-1].msg), '{} Hello, world!') + self.assertEqual(records[-1].funcName, 'test_nested_styled_adapter') + adapter2.log(logging.WARNING, 'Goodbye {}.', 'world') + self.assertEqual(str(records[-1].msg), '{} Goodbye world.') + self.assertEqual(records[-1].funcName, 'test_nested_styled_adapter') + + def test_find_caller_with_stacklevel(self): + the_level = 1 + trigger = self.adapter.warning + + def innermost(): + trigger('test', stacklevel=the_level) + + def inner(): + innermost() + + def outer(): + inner() + + records = self.recording.records + outer() + self.assertEqual(records[-1].funcName, 'innermost') + lineno = records[-1].lineno + the_level += 1 + outer() + self.assertEqual(records[-1].funcName, 'inner') + self.assertGreater(records[-1].lineno, lineno) + lineno = records[-1].lineno + the_level += 1 + outer() + self.assertEqual(records[-1].funcName, 'outer') + self.assertGreater(records[-1].lineno, lineno) + lineno = records[-1].lineno + the_level += 1 + outer() + self.assertEqual(records[-1].funcName, 'test_find_caller_with_stacklevel') + self.assertGreater(records[-1].lineno, lineno) + + def test_extra_in_records(self): + self.adapter = logging.LoggerAdapter(logger=self.logger, + extra={'foo': '1'}) + + self.adapter.critical('foo should be here') + self.assertEqual(len(self.recording.records), 1) + record = self.recording.records[0] + self.assertTrue(hasattr(record, 'foo')) + self.assertEqual(record.foo, '1') + + def test_extra_not_merged_by_default(self): + self.adapter.critical('foo should NOT be here', extra={'foo': 'nope'}) + self.assertEqual(len(self.recording.records), 1) + record = self.recording.records[0] + self.assertFalse(hasattr(record, 'foo')) + + +class PrefixAdapter(logging.LoggerAdapter): + prefix = 'Adapter' + + def process(self, msg, kwargs): + return f"{self.prefix} {msg}", kwargs + + +class Message: + def __init__(self, fmt, args): + self.fmt = fmt + self.args = args + + def __str__(self): + return self.fmt.format(*self.args) + + +class StyleAdapter(logging.LoggerAdapter): + def log(self, level, msg, /, *args, stacklevel=1, **kwargs): + if self.isEnabledFor(level): + msg, kwargs = self.process(msg, kwargs) + self.logger.log(level, Message(msg, args), **kwargs, + stacklevel=stacklevel+1) + + +class LoggerTest(BaseTest, AssertErrorMessage): + + def setUp(self): + super(LoggerTest, self).setUp() + self.recording = RecordingHandler() + self.logger = logging.Logger(name='blah') + self.logger.addHandler(self.recording) + self.addCleanup(self.logger.removeHandler, self.recording) + self.addCleanup(self.recording.close) + self.addCleanup(logging.shutdown) + + def test_set_invalid_level(self): + self.assert_error_message( + TypeError, 'Level not an integer or a valid string: None', + self.logger.setLevel, None) + self.assert_error_message( + TypeError, 'Level not an integer or a valid string: (0, 0)', + self.logger.setLevel, (0, 0)) + + def test_exception(self): + msg = 'testing exception: %r' + exc = None + try: + 1 / 0 + except ZeroDivisionError as e: + exc = e + self.logger.exception(msg, self.recording) + + self.assertEqual(len(self.recording.records), 1) + record = self.recording.records[0] + self.assertEqual(record.levelno, logging.ERROR) + self.assertEqual(record.msg, msg) + self.assertEqual(record.args, (self.recording,)) + self.assertEqual(record.exc_info, + (exc.__class__, exc, exc.__traceback__)) + + def test_log_invalid_level_with_raise(self): + with support.swap_attr(logging, 'raiseExceptions', True): + self.assertRaises(TypeError, self.logger.log, '10', 'test message') + + def test_log_invalid_level_no_raise(self): + with support.swap_attr(logging, 'raiseExceptions', False): + self.logger.log('10', 'test message') # no exception happens + + def test_find_caller_with_stack_info(self): + called = [] + support.patch(self, logging.traceback, 'print_stack', + lambda f, file: called.append(file.getvalue())) + + self.logger.findCaller(stack_info=True) + + self.assertEqual(len(called), 1) + self.assertEqual('Stack (most recent call last):\n', called[0]) + + def test_find_caller_with_stacklevel(self): + the_level = 1 + trigger = self.logger.warning + + def innermost(): + trigger('test', stacklevel=the_level) + + def inner(): + innermost() + + def outer(): + inner() + + records = self.recording.records + outer() + self.assertEqual(records[-1].funcName, 'innermost') + lineno = records[-1].lineno + the_level += 1 + outer() + self.assertEqual(records[-1].funcName, 'inner') + self.assertGreater(records[-1].lineno, lineno) + lineno = records[-1].lineno + the_level += 1 + outer() + self.assertEqual(records[-1].funcName, 'outer') + self.assertGreater(records[-1].lineno, lineno) + lineno = records[-1].lineno + root_logger = logging.getLogger() + root_logger.addHandler(self.recording) + trigger = logging.warning + outer() + self.assertEqual(records[-1].funcName, 'outer') + root_logger.removeHandler(self.recording) + trigger = self.logger.warning + the_level += 1 + outer() + self.assertEqual(records[-1].funcName, 'test_find_caller_with_stacklevel') + self.assertGreater(records[-1].lineno, lineno) + + def test_make_record_with_extra_overwrite(self): + name = 'my record' + level = 13 + fn = lno = msg = args = exc_info = func = sinfo = None + rv = logging._logRecordFactory(name, level, fn, lno, msg, args, + exc_info, func, sinfo) + + for key in ('message', 'asctime') + tuple(rv.__dict__.keys()): + extra = {key: 'some value'} + self.assertRaises(KeyError, self.logger.makeRecord, name, level, + fn, lno, msg, args, exc_info, + extra=extra, sinfo=sinfo) + + def test_make_record_with_extra_no_overwrite(self): + name = 'my record' + level = 13 + fn = lno = msg = args = exc_info = func = sinfo = None + extra = {'valid_key': 'some value'} + result = self.logger.makeRecord(name, level, fn, lno, msg, args, + exc_info, extra=extra, sinfo=sinfo) + self.assertIn('valid_key', result.__dict__) + + def test_has_handlers(self): + self.assertTrue(self.logger.hasHandlers()) + + for handler in self.logger.handlers: + self.logger.removeHandler(handler) + self.assertFalse(self.logger.hasHandlers()) + + def test_has_handlers_no_propagate(self): + child_logger = logging.getLogger('blah.child') + child_logger.propagate = False + self.assertFalse(child_logger.hasHandlers()) + + def test_is_enabled_for(self): + old_disable = self.logger.manager.disable + self.logger.manager.disable = 23 + self.addCleanup(setattr, self.logger.manager, 'disable', old_disable) + self.assertFalse(self.logger.isEnabledFor(22)) + + def test_is_enabled_for_disabled_logger(self): + old_disabled = self.logger.disabled + old_disable = self.logger.manager.disable + + self.logger.disabled = True + self.logger.manager.disable = 21 + + self.addCleanup(setattr, self.logger, 'disabled', old_disabled) + self.addCleanup(setattr, self.logger.manager, 'disable', old_disable) + + self.assertFalse(self.logger.isEnabledFor(22)) + + def test_root_logger_aliases(self): + root = logging.getLogger() + self.assertIs(root, logging.root) + self.assertIs(root, logging.getLogger(None)) + self.assertIs(root, logging.getLogger('')) + self.assertIs(root, logging.getLogger('root')) + self.assertIs(root, logging.getLogger('foo').root) + self.assertIs(root, logging.getLogger('foo.bar').root) + self.assertIs(root, logging.getLogger('foo').parent) + + self.assertIsNot(root, logging.getLogger('\0')) + self.assertIsNot(root, logging.getLogger('foo.bar').parent) + + def test_invalid_names(self): + self.assertRaises(TypeError, logging.getLogger, any) + self.assertRaises(TypeError, logging.getLogger, b'foo') + + def test_pickling(self): + for proto in range(pickle.HIGHEST_PROTOCOL + 1): + for name in ('', 'root', 'foo', 'foo.bar', 'baz.bar'): + logger = logging.getLogger(name) + s = pickle.dumps(logger, proto) + unpickled = pickle.loads(s) + self.assertIs(unpickled, logger) + + def test_caching(self): + root = self.root_logger + logger1 = logging.getLogger("abc") + logger2 = logging.getLogger("abc.def") + + # Set root logger level and ensure cache is empty + root.setLevel(logging.ERROR) + self.assertEqual(logger2.getEffectiveLevel(), logging.ERROR) + self.assertEqual(logger2._cache, {}) + + # Ensure cache is populated and calls are consistent + self.assertTrue(logger2.isEnabledFor(logging.ERROR)) + self.assertFalse(logger2.isEnabledFor(logging.DEBUG)) + self.assertEqual(logger2._cache, {logging.ERROR: True, logging.DEBUG: False}) + self.assertEqual(root._cache, {}) + self.assertTrue(logger2.isEnabledFor(logging.ERROR)) + + # Ensure root cache gets populated + self.assertEqual(root._cache, {}) + self.assertTrue(root.isEnabledFor(logging.ERROR)) + self.assertEqual(root._cache, {logging.ERROR: True}) + + # Set parent logger level and ensure caches are emptied + logger1.setLevel(logging.CRITICAL) + self.assertEqual(logger2.getEffectiveLevel(), logging.CRITICAL) + self.assertEqual(logger2._cache, {}) + + # Ensure logger2 uses parent logger's effective level + self.assertFalse(logger2.isEnabledFor(logging.ERROR)) + + # Set level to NOTSET and ensure caches are empty + logger2.setLevel(logging.NOTSET) + self.assertEqual(logger2.getEffectiveLevel(), logging.CRITICAL) + self.assertEqual(logger2._cache, {}) + self.assertEqual(logger1._cache, {}) + self.assertEqual(root._cache, {}) + + # Verify logger2 follows parent and not root + self.assertFalse(logger2.isEnabledFor(logging.ERROR)) + self.assertTrue(logger2.isEnabledFor(logging.CRITICAL)) + self.assertFalse(logger1.isEnabledFor(logging.ERROR)) + self.assertTrue(logger1.isEnabledFor(logging.CRITICAL)) + self.assertTrue(root.isEnabledFor(logging.ERROR)) + + # Disable logging in manager and ensure caches are clear + logging.disable() + self.assertEqual(logger2.getEffectiveLevel(), logging.CRITICAL) + self.assertEqual(logger2._cache, {}) + self.assertEqual(logger1._cache, {}) + self.assertEqual(root._cache, {}) + + # Ensure no loggers are enabled + self.assertFalse(logger1.isEnabledFor(logging.CRITICAL)) + self.assertFalse(logger2.isEnabledFor(logging.CRITICAL)) + self.assertFalse(root.isEnabledFor(logging.CRITICAL)) + + +class BaseFileTest(BaseTest): + "Base class for handler tests that write log files" + + def setUp(self): + BaseTest.setUp(self) + self.fn = make_temp_file(".log", "test_logging-2-") + self.rmfiles = [] + + def tearDown(self): + for fn in self.rmfiles: + os.unlink(fn) + if os.path.exists(self.fn): + os.unlink(self.fn) + BaseTest.tearDown(self) + + def assertLogFile(self, filename): + "Assert a log file is there and register it for deletion" + self.assertTrue(os.path.exists(filename), + msg="Log file %r does not exist" % filename) + self.rmfiles.append(filename) + + def next_rec(self): + return logging.LogRecord('n', logging.DEBUG, 'p', 1, + self.next_message(), None, None, None) + +class FileHandlerTest(BaseFileTest): + def test_delay(self): + os.unlink(self.fn) + fh = logging.FileHandler(self.fn, encoding='utf-8', delay=True) + self.assertIsNone(fh.stream) + self.assertFalse(os.path.exists(self.fn)) + fh.handle(logging.makeLogRecord({})) + self.assertIsNotNone(fh.stream) + self.assertTrue(os.path.exists(self.fn)) + fh.close() + + def test_emit_after_closing_in_write_mode(self): + # Issue #42378 + os.unlink(self.fn) + fh = logging.FileHandler(self.fn, encoding='utf-8', mode='w') + fh.setFormatter(logging.Formatter('%(message)s')) + fh.emit(self.next_rec()) # '1' + fh.close() + fh.emit(self.next_rec()) # '2' + with open(self.fn) as fp: + self.assertEqual(fp.read().strip(), '1') + +class RotatingFileHandlerTest(BaseFileTest): + def test_should_not_rollover(self): + # If file is empty rollover never occurs + rh = logging.handlers.RotatingFileHandler( + self.fn, encoding="utf-8", maxBytes=1) + self.assertFalse(rh.shouldRollover(None)) + rh.close() + + # If maxBytes is zero rollover never occurs + rh = logging.handlers.RotatingFileHandler( + self.fn, encoding="utf-8", maxBytes=0) + self.assertFalse(rh.shouldRollover(None)) + rh.close() + + with open(self.fn, 'wb') as f: + f.write(b'\n') + rh = logging.handlers.RotatingFileHandler( + self.fn, encoding="utf-8", maxBytes=0) + self.assertFalse(rh.shouldRollover(None)) + rh.close() + + @unittest.skipIf(support.is_wasi, "WASI does not have /dev/null.") + def test_should_not_rollover_non_file(self): + # bpo-45401 - test with special file + # We set maxBytes to 1 so that rollover would normally happen, except + # for the check for regular files + rh = logging.handlers.RotatingFileHandler( + os.devnull, encoding="utf-8", maxBytes=1) + self.assertFalse(rh.shouldRollover(self.next_rec())) + rh.close() + + def test_should_rollover(self): + with open(self.fn, 'wb') as f: + f.write(b'\n') + rh = logging.handlers.RotatingFileHandler(self.fn, encoding="utf-8", maxBytes=2) + self.assertTrue(rh.shouldRollover(self.next_rec())) + rh.close() + + def test_file_created(self): + # checks that the file is created and assumes it was created + # by us + os.unlink(self.fn) + rh = logging.handlers.RotatingFileHandler(self.fn, encoding="utf-8") + rh.emit(self.next_rec()) + self.assertLogFile(self.fn) + rh.close() + + def test_max_bytes(self, delay=False): + kwargs = {'delay': delay} if delay else {} + os.unlink(self.fn) + rh = logging.handlers.RotatingFileHandler( + self.fn, encoding="utf-8", backupCount=2, maxBytes=100, **kwargs) + self.assertIs(os.path.exists(self.fn), not delay) + small = logging.makeLogRecord({'msg': 'a'}) + large = logging.makeLogRecord({'msg': 'b'*100}) + self.assertFalse(rh.shouldRollover(small)) + self.assertFalse(rh.shouldRollover(large)) + rh.emit(small) + self.assertLogFile(self.fn) + self.assertFalse(os.path.exists(self.fn + ".1")) + self.assertFalse(rh.shouldRollover(small)) + self.assertTrue(rh.shouldRollover(large)) + rh.emit(large) + self.assertTrue(os.path.exists(self.fn)) + self.assertLogFile(self.fn + ".1") + self.assertFalse(os.path.exists(self.fn + ".2")) + self.assertTrue(rh.shouldRollover(small)) + self.assertTrue(rh.shouldRollover(large)) + rh.close() + + def test_max_bytes_delay(self): + self.test_max_bytes(delay=True) + + def test_rollover_filenames(self): + def namer(name): + return name + ".test" + rh = logging.handlers.RotatingFileHandler( + self.fn, encoding="utf-8", backupCount=2, maxBytes=1) + rh.namer = namer + rh.emit(self.next_rec()) + self.assertLogFile(self.fn) + self.assertFalse(os.path.exists(namer(self.fn + ".1"))) + rh.emit(self.next_rec()) + self.assertLogFile(namer(self.fn + ".1")) + self.assertFalse(os.path.exists(namer(self.fn + ".2"))) + rh.emit(self.next_rec()) + self.assertLogFile(namer(self.fn + ".2")) + self.assertFalse(os.path.exists(namer(self.fn + ".3"))) + rh.emit(self.next_rec()) + self.assertFalse(os.path.exists(namer(self.fn + ".3"))) + rh.close() + + def test_namer_rotator_inheritance(self): + class HandlerWithNamerAndRotator(logging.handlers.RotatingFileHandler): + def namer(self, name): + return name + ".test" + + def rotator(self, source, dest): + if os.path.exists(source): + os.replace(source, dest + ".rotated") + + rh = HandlerWithNamerAndRotator( + self.fn, encoding="utf-8", backupCount=2, maxBytes=1) + self.assertEqual(rh.namer(self.fn), self.fn + ".test") + rh.emit(self.next_rec()) + self.assertLogFile(self.fn) + rh.emit(self.next_rec()) + self.assertLogFile(rh.namer(self.fn + ".1") + ".rotated") + self.assertFalse(os.path.exists(rh.namer(self.fn + ".1"))) + rh.close() + + @support.requires_zlib() + def test_rotator(self): + def namer(name): + return name + ".gz" + + def rotator(source, dest): + with open(source, "rb") as sf: + data = sf.read() + compressed = zlib.compress(data, 9) + with open(dest, "wb") as df: + df.write(compressed) + os.remove(source) + + rh = logging.handlers.RotatingFileHandler( + self.fn, encoding="utf-8", backupCount=2, maxBytes=1) + rh.rotator = rotator + rh.namer = namer + m1 = self.next_rec() + rh.emit(m1) + self.assertLogFile(self.fn) + m2 = self.next_rec() + rh.emit(m2) + fn = namer(self.fn + ".1") + self.assertLogFile(fn) + newline = os.linesep + with open(fn, "rb") as f: + compressed = f.read() + data = zlib.decompress(compressed) + self.assertEqual(data.decode("ascii"), m1.msg + newline) + rh.emit(self.next_rec()) + fn = namer(self.fn + ".2") + self.assertLogFile(fn) + with open(fn, "rb") as f: + compressed = f.read() + data = zlib.decompress(compressed) + self.assertEqual(data.decode("ascii"), m1.msg + newline) + rh.emit(self.next_rec()) + fn = namer(self.fn + ".2") + with open(fn, "rb") as f: + compressed = f.read() + data = zlib.decompress(compressed) + self.assertEqual(data.decode("ascii"), m2.msg + newline) + self.assertFalse(os.path.exists(namer(self.fn + ".3"))) + rh.close() + +class TimedRotatingFileHandlerTest(BaseFileTest): + # TODO: RUSTPYTHON + @unittest.skip("OS dependent bug") + @unittest.skipIf(support.is_wasi, "WASI does not have /dev/null.") + def test_should_not_rollover(self): + # See bpo-45401. Should only ever rollover regular files + fh = logging.handlers.TimedRotatingFileHandler( + os.devnull, 'S', encoding="utf-8", backupCount=1) + time.sleep(1.1) # a little over a second ... + r = logging.makeLogRecord({'msg': 'testing - device file'}) + self.assertFalse(fh.shouldRollover(r)) + fh.close() + + # other test methods added below + def test_rollover(self): + fh = logging.handlers.TimedRotatingFileHandler( + self.fn, 'S', encoding="utf-8", backupCount=1) + fmt = logging.Formatter('%(asctime)s %(message)s') + fh.setFormatter(fmt) + r1 = logging.makeLogRecord({'msg': 'testing - initial'}) + fh.emit(r1) + self.assertLogFile(self.fn) + time.sleep(1.1) # a little over a second ... + r2 = logging.makeLogRecord({'msg': 'testing - after delay'}) + fh.emit(r2) + fh.close() + # At this point, we should have a recent rotated file which we + # can test for the existence of. However, in practice, on some + # machines which run really slowly, we don't know how far back + # in time to go to look for the log file. So, we go back a fair + # bit, and stop as soon as we see a rotated file. In theory this + # could of course still fail, but the chances are lower. + found = False + now = datetime.datetime.now() + GO_BACK = 5 * 60 # seconds + for secs in range(GO_BACK): + prev = now - datetime.timedelta(seconds=secs) + fn = self.fn + prev.strftime(".%Y-%m-%d_%H-%M-%S") + found = os.path.exists(fn) + if found: + self.rmfiles.append(fn) + break + msg = 'No rotated files found, went back %d seconds' % GO_BACK + if not found: + # print additional diagnostics + dn, fn = os.path.split(self.fn) + files = [f for f in os.listdir(dn) if f.startswith(fn)] + print('Test time: %s' % now.strftime("%Y-%m-%d %H-%M-%S"), file=sys.stderr) + print('The only matching files are: %s' % files, file=sys.stderr) + for f in files: + print('Contents of %s:' % f) + path = os.path.join(dn, f) + with open(path, 'r') as tf: + print(tf.read()) + self.assertTrue(found, msg=msg) + + # TODO: RustPython + @unittest.skip("OS dependent bug") + def test_rollover_at_midnight(self, weekly=False): + os_helper.unlink(self.fn) + now = datetime.datetime.now() + atTime = now.time() + if not 0.1 < atTime.microsecond/1e6 < 0.9: + # The test requires all records to be emitted within + # the range of the same whole second. + time.sleep((0.1 - atTime.microsecond/1e6) % 1.0) + now = datetime.datetime.now() + atTime = now.time() + atTime = atTime.replace(microsecond=0) + fmt = logging.Formatter('%(asctime)s %(message)s') + when = f'W{now.weekday()}' if weekly else 'MIDNIGHT' + for i in range(3): + fh = logging.handlers.TimedRotatingFileHandler( + self.fn, encoding="utf-8", when=when, atTime=atTime) + fh.setFormatter(fmt) + r2 = logging.makeLogRecord({'msg': f'testing1 {i}'}) + fh.emit(r2) + fh.close() + self.assertLogFile(self.fn) + with open(self.fn, encoding="utf-8") as f: + for i, line in enumerate(f): + self.assertIn(f'testing1 {i}', line) + + os.utime(self.fn, (now.timestamp() - 1,)*2) + for i in range(2): + fh = logging.handlers.TimedRotatingFileHandler( + self.fn, encoding="utf-8", when=when, atTime=atTime) + fh.setFormatter(fmt) + r2 = logging.makeLogRecord({'msg': f'testing2 {i}'}) + fh.emit(r2) + fh.close() + rolloverDate = now - datetime.timedelta(days=7 if weekly else 1) + otherfn = f'{self.fn}.{rolloverDate:%Y-%m-%d}' + self.assertLogFile(otherfn) + with open(self.fn, encoding="utf-8") as f: + for i, line in enumerate(f): + self.assertIn(f'testing2 {i}', line) + with open(otherfn, encoding="utf-8") as f: + for i, line in enumerate(f): + self.assertIn(f'testing1 {i}', line) + + # TODO: RustPython + @unittest.skip("OS dependent bug") + def test_rollover_at_weekday(self): + self.test_rollover_at_midnight(weekly=True) + + def test_invalid(self): + assertRaises = self.assertRaises + assertRaises(ValueError, logging.handlers.TimedRotatingFileHandler, + self.fn, 'X', encoding="utf-8", delay=True) + assertRaises(ValueError, logging.handlers.TimedRotatingFileHandler, + self.fn, 'W', encoding="utf-8", delay=True) + assertRaises(ValueError, logging.handlers.TimedRotatingFileHandler, + self.fn, 'W7', encoding="utf-8", delay=True) + + # TODO: Test for utc=False. + def test_compute_rollover_daily_attime(self): + currentTime = 0 + rh = logging.handlers.TimedRotatingFileHandler( + self.fn, encoding="utf-8", when='MIDNIGHT', + utc=True, atTime=None) + try: + actual = rh.computeRollover(currentTime) + self.assertEqual(actual, currentTime + 24 * 60 * 60) + + actual = rh.computeRollover(currentTime + 24 * 60 * 60 - 1) + self.assertEqual(actual, currentTime + 24 * 60 * 60) + + actual = rh.computeRollover(currentTime + 24 * 60 * 60) + self.assertEqual(actual, currentTime + 48 * 60 * 60) + + actual = rh.computeRollover(currentTime + 25 * 60 * 60) + self.assertEqual(actual, currentTime + 48 * 60 * 60) + finally: + rh.close() + + atTime = datetime.time(12, 0, 0) + rh = logging.handlers.TimedRotatingFileHandler( + self.fn, encoding="utf-8", when='MIDNIGHT', + utc=True, atTime=atTime) + try: + actual = rh.computeRollover(currentTime) + self.assertEqual(actual, currentTime + 12 * 60 * 60) + + actual = rh.computeRollover(currentTime + 12 * 60 * 60 - 1) + self.assertEqual(actual, currentTime + 12 * 60 * 60) + + actual = rh.computeRollover(currentTime + 12 * 60 * 60) + self.assertEqual(actual, currentTime + 36 * 60 * 60) + + actual = rh.computeRollover(currentTime + 13 * 60 * 60) + self.assertEqual(actual, currentTime + 36 * 60 * 60) + finally: + rh.close() + + # TODO: Test for utc=False. + def test_compute_rollover_weekly_attime(self): + currentTime = int(time.time()) + today = currentTime - currentTime % 86400 + + atTime = datetime.time(12, 0, 0) + + wday = time.gmtime(today).tm_wday + for day in range(7): + rh = logging.handlers.TimedRotatingFileHandler( + self.fn, encoding="utf-8", when='W%d' % day, interval=1, backupCount=0, + utc=True, atTime=atTime) + try: + if wday > day: + # The rollover day has already passed this week, so we + # go over into next week + expected = (7 - wday + day) + else: + expected = (day - wday) + # At this point expected is in days from now, convert to seconds + expected *= 24 * 60 * 60 + # Add in the rollover time + expected += 12 * 60 * 60 + # Add in adjustment for today + expected += today + + actual = rh.computeRollover(today) + if actual != expected: + print('failed in timezone: %d' % time.timezone) + print('local vars: %s' % locals()) + self.assertEqual(actual, expected) + + actual = rh.computeRollover(today + 12 * 60 * 60 - 1) + if actual != expected: + print('failed in timezone: %d' % time.timezone) + print('local vars: %s' % locals()) + self.assertEqual(actual, expected) + + if day == wday: + # goes into following week + expected += 7 * 24 * 60 * 60 + actual = rh.computeRollover(today + 12 * 60 * 60) + if actual != expected: + print('failed in timezone: %d' % time.timezone) + print('local vars: %s' % locals()) + self.assertEqual(actual, expected) + + actual = rh.computeRollover(today + 13 * 60 * 60) + if actual != expected: + print('failed in timezone: %d' % time.timezone) + print('local vars: %s' % locals()) + self.assertEqual(actual, expected) + finally: + rh.close() + + def test_compute_files_to_delete(self): + # See bpo-46063 for background + wd = tempfile.mkdtemp(prefix='test_logging_') + self.addCleanup(shutil.rmtree, wd) + times = [] + dt = datetime.datetime.now() + for i in range(10): + times.append(dt.strftime('%Y-%m-%d_%H-%M-%S')) + dt += datetime.timedelta(seconds=5) + prefixes = ('a.b', 'a.b.c', 'd.e', 'd.e.f', 'g') + files = [] + rotators = [] + for prefix in prefixes: + p = os.path.join(wd, '%s.log' % prefix) + rotator = logging.handlers.TimedRotatingFileHandler(p, when='s', + interval=5, + backupCount=7, + delay=True) + rotators.append(rotator) + if prefix.startswith('a.b'): + for t in times: + files.append('%s.log.%s' % (prefix, t)) + elif prefix.startswith('d.e'): + def namer(filename): + dirname, basename = os.path.split(filename) + basename = basename.replace('.log', '') + '.log' + return os.path.join(dirname, basename) + rotator.namer = namer + for t in times: + files.append('%s.%s.log' % (prefix, t)) + elif prefix == 'g': + def namer(filename): + dirname, basename = os.path.split(filename) + basename = 'g' + basename[6:] + '.oldlog' + return os.path.join(dirname, basename) + rotator.namer = namer + for t in times: + files.append('g%s.oldlog' % t) + # Create empty files + for fn in files: + p = os.path.join(wd, fn) + with open(p, 'wb') as f: + pass + # Now the checks that only the correct files are offered up for deletion + for i, prefix in enumerate(prefixes): + rotator = rotators[i] + candidates = rotator.getFilesToDelete() + self.assertEqual(len(candidates), 3, candidates) + if prefix.startswith('a.b'): + p = '%s.log.' % prefix + for c in candidates: + d, fn = os.path.split(c) + self.assertTrue(fn.startswith(p)) + elif prefix.startswith('d.e'): + for c in candidates: + d, fn = os.path.split(c) + self.assertTrue(fn.endswith('.log'), fn) + self.assertTrue(fn.startswith(prefix + '.') and + fn[len(prefix) + 2].isdigit()) + elif prefix == 'g': + for c in candidates: + d, fn = os.path.split(c) + self.assertTrue(fn.endswith('.oldlog')) + self.assertTrue(fn.startswith('g') and fn[1].isdigit()) + + def test_compute_files_to_delete_same_filename_different_extensions(self): + # See GH-93205 for background + wd = pathlib.Path(tempfile.mkdtemp(prefix='test_logging_')) + self.addCleanup(shutil.rmtree, wd) + times = [] + dt = datetime.datetime.now() + n_files = 10 + for _ in range(n_files): + times.append(dt.strftime('%Y-%m-%d_%H-%M-%S')) + dt += datetime.timedelta(seconds=5) + prefixes = ('a.log', 'a.log.b') + files = [] + rotators = [] + for i, prefix in enumerate(prefixes): + backupCount = i+1 + rotator = logging.handlers.TimedRotatingFileHandler(wd / prefix, when='s', + interval=5, + backupCount=backupCount, + delay=True) + rotators.append(rotator) + for t in times: + files.append('%s.%s' % (prefix, t)) + for t in times: + files.append('a.log.%s.c' % t) + # Create empty files + for f in files: + (wd / f).touch() + # Now the checks that only the correct files are offered up for deletion + for i, prefix in enumerate(prefixes): + backupCount = i+1 + rotator = rotators[i] + candidates = rotator.getFilesToDelete() + self.assertEqual(len(candidates), n_files - backupCount, candidates) + matcher = re.compile(r"^\d{4}-\d{2}-\d{2}_\d{2}-\d{2}-\d{2}\Z") + for c in candidates: + d, fn = os.path.split(c) + self.assertTrue(fn.startswith(prefix+'.')) + suffix = fn[(len(prefix)+1):] + self.assertRegex(suffix, matcher) + + # Run with US-style DST rules: DST begins 2 a.m. on second Sunday in + # March (M3.2.0) and ends 2 a.m. on first Sunday in November (M11.1.0). + @support.run_with_tz('EST+05EDT,M3.2.0,M11.1.0') + def test_compute_rollover_MIDNIGHT_local(self): + # DST begins at 2012-3-11T02:00:00 and ends at 2012-11-4T02:00:00. + DT = datetime.datetime + def test(current, expected): + actual = fh.computeRollover(current.timestamp()) + diff = actual - expected.timestamp() + if diff: + self.assertEqual(diff, 0, datetime.timedelta(seconds=diff)) + + fh = logging.handlers.TimedRotatingFileHandler( + self.fn, encoding="utf-8", when='MIDNIGHT', utc=False) + + test(DT(2012, 3, 10, 23, 59, 59), DT(2012, 3, 11, 0, 0)) + test(DT(2012, 3, 11, 0, 0), DT(2012, 3, 12, 0, 0)) + test(DT(2012, 3, 11, 1, 0), DT(2012, 3, 12, 0, 0)) + + test(DT(2012, 11, 3, 23, 59, 59), DT(2012, 11, 4, 0, 0)) + test(DT(2012, 11, 4, 0, 0), DT(2012, 11, 5, 0, 0)) + test(DT(2012, 11, 4, 1, 0), DT(2012, 11, 5, 0, 0)) + + fh.close() + + fh = logging.handlers.TimedRotatingFileHandler( + self.fn, encoding="utf-8", when='MIDNIGHT', utc=False, + atTime=datetime.time(12, 0, 0)) + + test(DT(2012, 3, 10, 11, 59, 59), DT(2012, 3, 10, 12, 0)) + test(DT(2012, 3, 10, 12, 0), DT(2012, 3, 11, 12, 0)) + test(DT(2012, 3, 10, 13, 0), DT(2012, 3, 11, 12, 0)) + + test(DT(2012, 11, 3, 11, 59, 59), DT(2012, 11, 3, 12, 0)) + test(DT(2012, 11, 3, 12, 0), DT(2012, 11, 4, 12, 0)) + test(DT(2012, 11, 3, 13, 0), DT(2012, 11, 4, 12, 0)) + + fh.close() + + fh = logging.handlers.TimedRotatingFileHandler( + self.fn, encoding="utf-8", when='MIDNIGHT', utc=False, + atTime=datetime.time(2, 0, 0)) + + test(DT(2012, 3, 10, 1, 59, 59), DT(2012, 3, 10, 2, 0)) + # 2:00:00 is the same as 3:00:00 at 2012-3-11. + test(DT(2012, 3, 10, 2, 0), DT(2012, 3, 11, 3, 0)) + test(DT(2012, 3, 10, 3, 0), DT(2012, 3, 11, 3, 0)) + + test(DT(2012, 3, 11, 1, 59, 59), DT(2012, 3, 11, 3, 0)) + # No time between 2:00:00 and 3:00:00 at 2012-3-11. + test(DT(2012, 3, 11, 3, 0), DT(2012, 3, 12, 2, 0)) + test(DT(2012, 3, 11, 4, 0), DT(2012, 3, 12, 2, 0)) + + test(DT(2012, 11, 3, 1, 59, 59), DT(2012, 11, 3, 2, 0)) + test(DT(2012, 11, 3, 2, 0), DT(2012, 11, 4, 2, 0)) + test(DT(2012, 11, 3, 3, 0), DT(2012, 11, 4, 2, 0)) + + # 1:00:00-2:00:00 is repeated twice at 2012-11-4. + test(DT(2012, 11, 4, 1, 59, 59), DT(2012, 11, 4, 2, 0)) + test(DT(2012, 11, 4, 1, 59, 59, fold=1), DT(2012, 11, 4, 2, 0)) + test(DT(2012, 11, 4, 2, 0), DT(2012, 11, 5, 2, 0)) + test(DT(2012, 11, 4, 3, 0), DT(2012, 11, 5, 2, 0)) + + fh.close() + + fh = logging.handlers.TimedRotatingFileHandler( + self.fn, encoding="utf-8", when='MIDNIGHT', utc=False, + atTime=datetime.time(2, 30, 0)) + + test(DT(2012, 3, 10, 2, 29, 59), DT(2012, 3, 10, 2, 30)) + # No time 2:30:00 at 2012-3-11. + test(DT(2012, 3, 10, 2, 30), DT(2012, 3, 11, 3, 30)) + test(DT(2012, 3, 10, 3, 0), DT(2012, 3, 11, 3, 30)) + + test(DT(2012, 3, 11, 1, 59, 59), DT(2012, 3, 11, 3, 30)) + # No time between 2:00:00 and 3:00:00 at 2012-3-11. + test(DT(2012, 3, 11, 3, 0), DT(2012, 3, 12, 2, 30)) + test(DT(2012, 3, 11, 3, 30), DT(2012, 3, 12, 2, 30)) + + test(DT(2012, 11, 3, 2, 29, 59), DT(2012, 11, 3, 2, 30)) + test(DT(2012, 11, 3, 2, 30), DT(2012, 11, 4, 2, 30)) + test(DT(2012, 11, 3, 3, 0), DT(2012, 11, 4, 2, 30)) + + fh.close() + + fh = logging.handlers.TimedRotatingFileHandler( + self.fn, encoding="utf-8", when='MIDNIGHT', utc=False, + atTime=datetime.time(1, 30, 0)) + + test(DT(2012, 3, 11, 1, 29, 59), DT(2012, 3, 11, 1, 30)) + test(DT(2012, 3, 11, 1, 30), DT(2012, 3, 12, 1, 30)) + test(DT(2012, 3, 11, 1, 59, 59), DT(2012, 3, 12, 1, 30)) + # No time between 2:00:00 and 3:00:00 at 2012-3-11. + test(DT(2012, 3, 11, 3, 0), DT(2012, 3, 12, 1, 30)) + test(DT(2012, 3, 11, 3, 30), DT(2012, 3, 12, 1, 30)) + + # 1:00:00-2:00:00 is repeated twice at 2012-11-4. + test(DT(2012, 11, 4, 1, 0), DT(2012, 11, 4, 1, 30)) + test(DT(2012, 11, 4, 1, 29, 59), DT(2012, 11, 4, 1, 30)) + test(DT(2012, 11, 4, 1, 30), DT(2012, 11, 5, 1, 30)) + test(DT(2012, 11, 4, 1, 59, 59), DT(2012, 11, 5, 1, 30)) + # It is weird, but the rollover date jumps back from 2012-11-5 + # to 2012-11-4. + test(DT(2012, 11, 4, 1, 0, fold=1), DT(2012, 11, 4, 1, 30, fold=1)) + test(DT(2012, 11, 4, 1, 29, 59, fold=1), DT(2012, 11, 4, 1, 30, fold=1)) + test(DT(2012, 11, 4, 1, 30, fold=1), DT(2012, 11, 5, 1, 30)) + test(DT(2012, 11, 4, 1, 59, 59, fold=1), DT(2012, 11, 5, 1, 30)) + test(DT(2012, 11, 4, 2, 0), DT(2012, 11, 5, 1, 30)) + test(DT(2012, 11, 4, 2, 30), DT(2012, 11, 5, 1, 30)) + + fh.close() + + # Run with US-style DST rules: DST begins 2 a.m. on second Sunday in + # March (M3.2.0) and ends 2 a.m. on first Sunday in November (M11.1.0). + @support.run_with_tz('EST+05EDT,M3.2.0,M11.1.0') + def test_compute_rollover_W6_local(self): + # DST begins at 2012-3-11T02:00:00 and ends at 2012-11-4T02:00:00. + DT = datetime.datetime + def test(current, expected): + actual = fh.computeRollover(current.timestamp()) + diff = actual - expected.timestamp() + if diff: + self.assertEqual(diff, 0, datetime.timedelta(seconds=diff)) + + fh = logging.handlers.TimedRotatingFileHandler( + self.fn, encoding="utf-8", when='W6', utc=False) + + test(DT(2012, 3, 4, 23, 59, 59), DT(2012, 3, 5, 0, 0)) + test(DT(2012, 3, 5, 0, 0), DT(2012, 3, 12, 0, 0)) + test(DT(2012, 3, 5, 1, 0), DT(2012, 3, 12, 0, 0)) + + test(DT(2012, 10, 28, 23, 59, 59), DT(2012, 10, 29, 0, 0)) + test(DT(2012, 10, 29, 0, 0), DT(2012, 11, 5, 0, 0)) + test(DT(2012, 10, 29, 1, 0), DT(2012, 11, 5, 0, 0)) + + fh.close() + + fh = logging.handlers.TimedRotatingFileHandler( + self.fn, encoding="utf-8", when='W6', utc=False, + atTime=datetime.time(0, 0, 0)) + + test(DT(2012, 3, 10, 23, 59, 59), DT(2012, 3, 11, 0, 0)) + test(DT(2012, 3, 11, 0, 0), DT(2012, 3, 18, 0, 0)) + test(DT(2012, 3, 11, 1, 0), DT(2012, 3, 18, 0, 0)) + + test(DT(2012, 11, 3, 23, 59, 59), DT(2012, 11, 4, 0, 0)) + test(DT(2012, 11, 4, 0, 0), DT(2012, 11, 11, 0, 0)) + test(DT(2012, 11, 4, 1, 0), DT(2012, 11, 11, 0, 0)) + + fh.close() + + fh = logging.handlers.TimedRotatingFileHandler( + self.fn, encoding="utf-8", when='W6', utc=False, + atTime=datetime.time(12, 0, 0)) + + test(DT(2012, 3, 4, 11, 59, 59), DT(2012, 3, 4, 12, 0)) + test(DT(2012, 3, 4, 12, 0), DT(2012, 3, 11, 12, 0)) + test(DT(2012, 3, 4, 13, 0), DT(2012, 3, 11, 12, 0)) + + test(DT(2012, 10, 28, 11, 59, 59), DT(2012, 10, 28, 12, 0)) + test(DT(2012, 10, 28, 12, 0), DT(2012, 11, 4, 12, 0)) + test(DT(2012, 10, 28, 13, 0), DT(2012, 11, 4, 12, 0)) + + fh.close() + + fh = logging.handlers.TimedRotatingFileHandler( + self.fn, encoding="utf-8", when='W6', utc=False, + atTime=datetime.time(2, 0, 0)) + + test(DT(2012, 3, 4, 1, 59, 59), DT(2012, 3, 4, 2, 0)) + # 2:00:00 is the same as 3:00:00 at 2012-3-11. + test(DT(2012, 3, 4, 2, 0), DT(2012, 3, 11, 3, 0)) + test(DT(2012, 3, 4, 3, 0), DT(2012, 3, 11, 3, 0)) + + test(DT(2012, 3, 11, 1, 59, 59), DT(2012, 3, 11, 3, 0)) + # No time between 2:00:00 and 3:00:00 at 2012-3-11. + test(DT(2012, 3, 11, 3, 0), DT(2012, 3, 18, 2, 0)) + test(DT(2012, 3, 11, 4, 0), DT(2012, 3, 18, 2, 0)) + + test(DT(2012, 10, 28, 1, 59, 59), DT(2012, 10, 28, 2, 0)) + test(DT(2012, 10, 28, 2, 0), DT(2012, 11, 4, 2, 0)) + test(DT(2012, 10, 28, 3, 0), DT(2012, 11, 4, 2, 0)) + + # 1:00:00-2:00:00 is repeated twice at 2012-11-4. + test(DT(2012, 11, 4, 1, 59, 59), DT(2012, 11, 4, 2, 0)) + test(DT(2012, 11, 4, 1, 59, 59, fold=1), DT(2012, 11, 4, 2, 0)) + test(DT(2012, 11, 4, 2, 0), DT(2012, 11, 11, 2, 0)) + test(DT(2012, 11, 4, 3, 0), DT(2012, 11, 11, 2, 0)) + + fh.close() + + fh = logging.handlers.TimedRotatingFileHandler( + self.fn, encoding="utf-8", when='W6', utc=False, + atTime=datetime.time(2, 30, 0)) + + test(DT(2012, 3, 4, 2, 29, 59), DT(2012, 3, 4, 2, 30)) + # No time 2:30:00 at 2012-3-11. + test(DT(2012, 3, 4, 2, 30), DT(2012, 3, 11, 3, 30)) + test(DT(2012, 3, 4, 3, 0), DT(2012, 3, 11, 3, 30)) + + test(DT(2012, 3, 11, 1, 59, 59), DT(2012, 3, 11, 3, 30)) + # No time between 2:00:00 and 3:00:00 at 2012-3-11. + test(DT(2012, 3, 11, 3, 0), DT(2012, 3, 18, 2, 30)) + test(DT(2012, 3, 11, 3, 30), DT(2012, 3, 18, 2, 30)) + + test(DT(2012, 10, 28, 2, 29, 59), DT(2012, 10, 28, 2, 30)) + test(DT(2012, 10, 28, 2, 30), DT(2012, 11, 4, 2, 30)) + test(DT(2012, 10, 28, 3, 0), DT(2012, 11, 4, 2, 30)) + + fh.close() + + fh = logging.handlers.TimedRotatingFileHandler( + self.fn, encoding="utf-8", when='W6', utc=False, + atTime=datetime.time(1, 30, 0)) + + test(DT(2012, 3, 11, 1, 29, 59), DT(2012, 3, 11, 1, 30)) + test(DT(2012, 3, 11, 1, 30), DT(2012, 3, 18, 1, 30)) + test(DT(2012, 3, 11, 1, 59, 59), DT(2012, 3, 18, 1, 30)) + # No time between 2:00:00 and 3:00:00 at 2012-3-11. + test(DT(2012, 3, 11, 3, 0), DT(2012, 3, 18, 1, 30)) + test(DT(2012, 3, 11, 3, 30), DT(2012, 3, 18, 1, 30)) + + # 1:00:00-2:00:00 is repeated twice at 2012-11-4. + test(DT(2012, 11, 4, 1, 0), DT(2012, 11, 4, 1, 30)) + test(DT(2012, 11, 4, 1, 29, 59), DT(2012, 11, 4, 1, 30)) + test(DT(2012, 11, 4, 1, 30), DT(2012, 11, 11, 1, 30)) + test(DT(2012, 11, 4, 1, 59, 59), DT(2012, 11, 11, 1, 30)) + # It is weird, but the rollover date jumps back from 2012-11-11 + # to 2012-11-4. + test(DT(2012, 11, 4, 1, 0, fold=1), DT(2012, 11, 4, 1, 30, fold=1)) + test(DT(2012, 11, 4, 1, 29, 59, fold=1), DT(2012, 11, 4, 1, 30, fold=1)) + test(DT(2012, 11, 4, 1, 30, fold=1), DT(2012, 11, 11, 1, 30)) + test(DT(2012, 11, 4, 1, 59, 59, fold=1), DT(2012, 11, 11, 1, 30)) + test(DT(2012, 11, 4, 2, 0), DT(2012, 11, 11, 1, 30)) + test(DT(2012, 11, 4, 2, 30), DT(2012, 11, 11, 1, 30)) + + fh.close() + + # Run with US-style DST rules: DST begins 2 a.m. on second Sunday in + # March (M3.2.0) and ends 2 a.m. on first Sunday in November (M11.1.0). + @support.run_with_tz('EST+05EDT,M3.2.0,M11.1.0') + def test_compute_rollover_MIDNIGHT_local_interval(self): + # DST begins at 2012-3-11T02:00:00 and ends at 2012-11-4T02:00:00. + DT = datetime.datetime + def test(current, expected): + actual = fh.computeRollover(current.timestamp()) + diff = actual - expected.timestamp() + if diff: + self.assertEqual(diff, 0, datetime.timedelta(seconds=diff)) + + fh = logging.handlers.TimedRotatingFileHandler( + self.fn, encoding="utf-8", when='MIDNIGHT', utc=False, interval=3) + + test(DT(2012, 3, 8, 23, 59, 59), DT(2012, 3, 11, 0, 0)) + test(DT(2012, 3, 9, 0, 0), DT(2012, 3, 12, 0, 0)) + test(DT(2012, 3, 9, 1, 0), DT(2012, 3, 12, 0, 0)) + test(DT(2012, 3, 10, 23, 59, 59), DT(2012, 3, 13, 0, 0)) + test(DT(2012, 3, 11, 0, 0), DT(2012, 3, 14, 0, 0)) + test(DT(2012, 3, 11, 1, 0), DT(2012, 3, 14, 0, 0)) + + test(DT(2012, 11, 1, 23, 59, 59), DT(2012, 11, 4, 0, 0)) + test(DT(2012, 11, 2, 0, 0), DT(2012, 11, 5, 0, 0)) + test(DT(2012, 11, 2, 1, 0), DT(2012, 11, 5, 0, 0)) + test(DT(2012, 11, 3, 23, 59, 59), DT(2012, 11, 6, 0, 0)) + test(DT(2012, 11, 4, 0, 0), DT(2012, 11, 7, 0, 0)) + test(DT(2012, 11, 4, 1, 0), DT(2012, 11, 7, 0, 0)) + + fh.close() + + fh = logging.handlers.TimedRotatingFileHandler( + self.fn, encoding="utf-8", when='MIDNIGHT', utc=False, interval=3, + atTime=datetime.time(12, 0, 0)) + + test(DT(2012, 3, 8, 11, 59, 59), DT(2012, 3, 10, 12, 0)) + test(DT(2012, 3, 8, 12, 0), DT(2012, 3, 11, 12, 0)) + test(DT(2012, 3, 8, 13, 0), DT(2012, 3, 11, 12, 0)) + test(DT(2012, 3, 10, 11, 59, 59), DT(2012, 3, 12, 12, 0)) + test(DT(2012, 3, 10, 12, 0), DT(2012, 3, 13, 12, 0)) + test(DT(2012, 3, 10, 13, 0), DT(2012, 3, 13, 12, 0)) + + test(DT(2012, 11, 1, 11, 59, 59), DT(2012, 11, 3, 12, 0)) + test(DT(2012, 11, 1, 12, 0), DT(2012, 11, 4, 12, 0)) + test(DT(2012, 11, 1, 13, 0), DT(2012, 11, 4, 12, 0)) + test(DT(2012, 11, 3, 11, 59, 59), DT(2012, 11, 5, 12, 0)) + test(DT(2012, 11, 3, 12, 0), DT(2012, 11, 6, 12, 0)) + test(DT(2012, 11, 3, 13, 0), DT(2012, 11, 6, 12, 0)) + + fh.close() + + # Run with US-style DST rules: DST begins 2 a.m. on second Sunday in + # March (M3.2.0) and ends 2 a.m. on first Sunday in November (M11.1.0). + @support.run_with_tz('EST+05EDT,M3.2.0,M11.1.0') + def test_compute_rollover_W6_local_interval(self): + # DST begins at 2012-3-11T02:00:00 and ends at 2012-11-4T02:00:00. + DT = datetime.datetime + def test(current, expected): + actual = fh.computeRollover(current.timestamp()) + diff = actual - expected.timestamp() + if diff: + self.assertEqual(diff, 0, datetime.timedelta(seconds=diff)) + + fh = logging.handlers.TimedRotatingFileHandler( + self.fn, encoding="utf-8", when='W6', utc=False, interval=3) + + test(DT(2012, 2, 19, 23, 59, 59), DT(2012, 3, 5, 0, 0)) + test(DT(2012, 2, 20, 0, 0), DT(2012, 3, 12, 0, 0)) + test(DT(2012, 2, 20, 1, 0), DT(2012, 3, 12, 0, 0)) + test(DT(2012, 3, 4, 23, 59, 59), DT(2012, 3, 19, 0, 0)) + test(DT(2012, 3, 5, 0, 0), DT(2012, 3, 26, 0, 0)) + test(DT(2012, 3, 5, 1, 0), DT(2012, 3, 26, 0, 0)) + + test(DT(2012, 10, 14, 23, 59, 59), DT(2012, 10, 29, 0, 0)) + test(DT(2012, 10, 15, 0, 0), DT(2012, 11, 5, 0, 0)) + test(DT(2012, 10, 15, 1, 0), DT(2012, 11, 5, 0, 0)) + test(DT(2012, 10, 28, 23, 59, 59), DT(2012, 11, 12, 0, 0)) + test(DT(2012, 10, 29, 0, 0), DT(2012, 11, 19, 0, 0)) + test(DT(2012, 10, 29, 1, 0), DT(2012, 11, 19, 0, 0)) + + fh.close() + + fh = logging.handlers.TimedRotatingFileHandler( + self.fn, encoding="utf-8", when='W6', utc=False, interval=3, + atTime=datetime.time(0, 0, 0)) + + test(DT(2012, 2, 25, 23, 59, 59), DT(2012, 3, 11, 0, 0)) + test(DT(2012, 2, 26, 0, 0), DT(2012, 3, 18, 0, 0)) + test(DT(2012, 2, 26, 1, 0), DT(2012, 3, 18, 0, 0)) + test(DT(2012, 3, 10, 23, 59, 59), DT(2012, 3, 25, 0, 0)) + test(DT(2012, 3, 11, 0, 0), DT(2012, 4, 1, 0, 0)) + test(DT(2012, 3, 11, 1, 0), DT(2012, 4, 1, 0, 0)) + + test(DT(2012, 10, 20, 23, 59, 59), DT(2012, 11, 4, 0, 0)) + test(DT(2012, 10, 21, 0, 0), DT(2012, 11, 11, 0, 0)) + test(DT(2012, 10, 21, 1, 0), DT(2012, 11, 11, 0, 0)) + test(DT(2012, 11, 3, 23, 59, 59), DT(2012, 11, 18, 0, 0)) + test(DT(2012, 11, 4, 0, 0), DT(2012, 11, 25, 0, 0)) + test(DT(2012, 11, 4, 1, 0), DT(2012, 11, 25, 0, 0)) + + fh.close() + + fh = logging.handlers.TimedRotatingFileHandler( + self.fn, encoding="utf-8", when='W6', utc=False, interval=3, + atTime=datetime.time(12, 0, 0)) + + test(DT(2012, 2, 18, 11, 59, 59), DT(2012, 3, 4, 12, 0)) + test(DT(2012, 2, 19, 12, 0), DT(2012, 3, 11, 12, 0)) + test(DT(2012, 2, 19, 13, 0), DT(2012, 3, 11, 12, 0)) + test(DT(2012, 3, 4, 11, 59, 59), DT(2012, 3, 18, 12, 0)) + test(DT(2012, 3, 4, 12, 0), DT(2012, 3, 25, 12, 0)) + test(DT(2012, 3, 4, 13, 0), DT(2012, 3, 25, 12, 0)) + + test(DT(2012, 10, 14, 11, 59, 59), DT(2012, 10, 28, 12, 0)) + test(DT(2012, 10, 14, 12, 0), DT(2012, 11, 4, 12, 0)) + test(DT(2012, 10, 14, 13, 0), DT(2012, 11, 4, 12, 0)) + test(DT(2012, 10, 28, 11, 59, 59), DT(2012, 11, 11, 12, 0)) + test(DT(2012, 10, 28, 12, 0), DT(2012, 11, 18, 12, 0)) + test(DT(2012, 10, 28, 13, 0), DT(2012, 11, 18, 12, 0)) + + fh.close() + + +def secs(**kw): + return datetime.timedelta(**kw) // datetime.timedelta(seconds=1) + +for when, exp in (('S', 1), + ('M', 60), + ('H', 60 * 60), + ('D', 60 * 60 * 24), + ('MIDNIGHT', 60 * 60 * 24), + # current time (epoch start) is a Thursday, W0 means Monday + ('W0', secs(days=4, hours=24)), + ): + for interval in 1, 3: + def test_compute_rollover(self, when=when, interval=interval, exp=exp): + rh = logging.handlers.TimedRotatingFileHandler( + self.fn, encoding="utf-8", when=when, interval=interval, backupCount=0, utc=True) + currentTime = 0.0 + actual = rh.computeRollover(currentTime) + if when.startswith('W'): + exp += secs(days=7*(interval-1)) + else: + exp *= interval + if exp != actual: + # Failures occur on some systems for MIDNIGHT and W0. + # Print detailed calculation for MIDNIGHT so we can try to see + # what's going on + if when == 'MIDNIGHT': + try: + if rh.utc: + t = time.gmtime(currentTime) + else: + t = time.localtime(currentTime) + currentHour = t[3] + currentMinute = t[4] + currentSecond = t[5] + # r is the number of seconds left between now and midnight + r = logging.handlers._MIDNIGHT - ((currentHour * 60 + + currentMinute) * 60 + + currentSecond) + result = currentTime + r + print('t: %s (%s)' % (t, rh.utc), file=sys.stderr) + print('currentHour: %s' % currentHour, file=sys.stderr) + print('currentMinute: %s' % currentMinute, file=sys.stderr) + print('currentSecond: %s' % currentSecond, file=sys.stderr) + print('r: %s' % r, file=sys.stderr) + print('result: %s' % result, file=sys.stderr) + except Exception as e: + print('exception in diagnostic code: %s' % e, file=sys.stderr) + self.assertEqual(exp, actual) + rh.close() + name = "test_compute_rollover_%s" % when + if interval > 1: + name += "_interval" + test_compute_rollover.__name__ = name + setattr(TimedRotatingFileHandlerTest, name, test_compute_rollover) + + +@unittest.skipUnless(win32evtlog, 'win32evtlog/win32evtlogutil/pywintypes required for this test.') +class NTEventLogHandlerTest(BaseTest): + def test_basic(self): + logtype = 'Application' + elh = win32evtlog.OpenEventLog(None, logtype) + num_recs = win32evtlog.GetNumberOfEventLogRecords(elh) + + try: + h = logging.handlers.NTEventLogHandler('test_logging') + except pywintypes.error as e: + if e.winerror == 5: # access denied + raise unittest.SkipTest('Insufficient privileges to run test') + raise + + r = logging.makeLogRecord({'msg': 'Test Log Message'}) + h.handle(r) + h.close() + # Now see if the event is recorded + self.assertLess(num_recs, win32evtlog.GetNumberOfEventLogRecords(elh)) + flags = win32evtlog.EVENTLOG_BACKWARDS_READ | \ + win32evtlog.EVENTLOG_SEQUENTIAL_READ + found = False + GO_BACK = 100 + events = win32evtlog.ReadEventLog(elh, flags, GO_BACK) + for e in events: + if e.SourceName != 'test_logging': + continue + msg = win32evtlogutil.SafeFormatMessage(e, logtype) + if msg != 'Test Log Message\r\n': + continue + found = True + break + msg = 'Record not found in event log, went back %d records' % GO_BACK + self.assertTrue(found, msg=msg) + + +class MiscTestCase(unittest.TestCase): + def test__all__(self): + not_exported = { + 'logThreads', 'logMultiprocessing', 'logProcesses', 'currentframe', + 'PercentStyle', 'StrFormatStyle', 'StringTemplateStyle', + 'Filterer', 'PlaceHolder', 'Manager', 'RootLogger', 'root', + 'threading', 'logAsyncioTasks'} + support.check__all__(self, logging, not_exported=not_exported) + + +# Set the locale to the platform-dependent default. I have no idea +# why the test does this, but in any case we save the current locale +# first and restore it at the end. +def setUpModule(): + unittest.enterModuleContext(support.run_with_locale('LC_ALL', '')) + + +if __name__ == "__main__": + unittest.main() diff --git a/Lib/test/test_lzma.py b/Lib/test/test_lzma.py new file mode 100644 index 0000000000..1bac61f59e --- /dev/null +++ b/Lib/test/test_lzma.py @@ -0,0 +1,2197 @@ +import _compression +import array +from io import BytesIO, UnsupportedOperation, DEFAULT_BUFFER_SIZE +import os +import pickle +import random +import sys +from test import support +import unittest + +from test.support import _4G, bigmemtest +from test.support.import_helper import import_module +from test.support.os_helper import ( + TESTFN, unlink, FakePath +) + +lzma = import_module("lzma") +from lzma import LZMACompressor, LZMADecompressor, LZMAError, LZMAFile + + +class CompressorDecompressorTestCase(unittest.TestCase): + + # Test error cases. + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_simple_bad_args(self): + self.assertRaises(TypeError, LZMACompressor, []) + self.assertRaises(TypeError, LZMACompressor, format=3.45) + self.assertRaises(TypeError, LZMACompressor, check="") + self.assertRaises(TypeError, LZMACompressor, preset="asdf") + self.assertRaises(TypeError, LZMACompressor, filters=3) + # Can't specify FORMAT_AUTO when compressing. + self.assertRaises(ValueError, LZMACompressor, format=lzma.FORMAT_AUTO) + # Can't specify a preset and a custom filter chain at the same time. + with self.assertRaises(ValueError): + LZMACompressor(preset=7, filters=[{"id": lzma.FILTER_LZMA2}]) + + self.assertRaises(TypeError, LZMADecompressor, ()) + self.assertRaises(TypeError, LZMADecompressor, memlimit=b"qw") + with self.assertRaises(TypeError): + LZMADecompressor(lzma.FORMAT_RAW, filters="zzz") + # Cannot specify a memory limit with FILTER_RAW. + with self.assertRaises(ValueError): + LZMADecompressor(lzma.FORMAT_RAW, memlimit=0x1000000) + # Can only specify a custom filter chain with FILTER_RAW. + self.assertRaises(ValueError, LZMADecompressor, filters=FILTERS_RAW_1) + with self.assertRaises(ValueError): + LZMADecompressor(format=lzma.FORMAT_XZ, filters=FILTERS_RAW_1) + with self.assertRaises(ValueError): + LZMADecompressor(format=lzma.FORMAT_ALONE, filters=FILTERS_RAW_1) + + lzc = LZMACompressor() + self.assertRaises(TypeError, lzc.compress) + self.assertRaises(TypeError, lzc.compress, b"foo", b"bar") + self.assertRaises(TypeError, lzc.flush, b"blah") + empty = lzc.flush() + self.assertRaises(ValueError, lzc.compress, b"quux") + self.assertRaises(ValueError, lzc.flush) + + lzd = LZMADecompressor() + self.assertRaises(TypeError, lzd.decompress) + self.assertRaises(TypeError, lzd.decompress, b"foo", b"bar") + lzd.decompress(empty) + self.assertRaises(EOFError, lzd.decompress, b"quux") + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_bad_filter_spec(self): + self.assertRaises(TypeError, LZMACompressor, filters=[b"wobsite"]) + self.assertRaises(ValueError, LZMACompressor, filters=[{"xyzzy": 3}]) + self.assertRaises(ValueError, LZMACompressor, filters=[{"id": 98765}]) + with self.assertRaises(ValueError): + LZMACompressor(filters=[{"id": lzma.FILTER_LZMA2, "foo": 0}]) + with self.assertRaises(ValueError): + LZMACompressor(filters=[{"id": lzma.FILTER_DELTA, "foo": 0}]) + with self.assertRaises(ValueError): + LZMACompressor(filters=[{"id": lzma.FILTER_X86, "foo": 0}]) + + def test_decompressor_after_eof(self): + lzd = LZMADecompressor() + lzd.decompress(COMPRESSED_XZ) + self.assertRaises(EOFError, lzd.decompress, b"nyan") + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_decompressor_memlimit(self): + lzd = LZMADecompressor(memlimit=1024) + self.assertRaises(LZMAError, lzd.decompress, COMPRESSED_XZ) + + lzd = LZMADecompressor(lzma.FORMAT_XZ, memlimit=1024) + self.assertRaises(LZMAError, lzd.decompress, COMPRESSED_XZ) + + lzd = LZMADecompressor(lzma.FORMAT_ALONE, memlimit=1024) + self.assertRaises(LZMAError, lzd.decompress, COMPRESSED_ALONE) + + # Test LZMADecompressor on known-good input data. + + def _test_decompressor(self, lzd, data, check, unused_data=b""): + self.assertFalse(lzd.eof) + out = lzd.decompress(data) + self.assertEqual(out, INPUT) + self.assertEqual(lzd.check, check) + self.assertTrue(lzd.eof) + self.assertEqual(lzd.unused_data, unused_data) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_decompressor_auto(self): + lzd = LZMADecompressor() + self._test_decompressor(lzd, COMPRESSED_XZ, lzma.CHECK_CRC64) + + lzd = LZMADecompressor() + self._test_decompressor(lzd, COMPRESSED_ALONE, lzma.CHECK_NONE) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_decompressor_xz(self): + lzd = LZMADecompressor(lzma.FORMAT_XZ) + self._test_decompressor(lzd, COMPRESSED_XZ, lzma.CHECK_CRC64) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_decompressor_alone(self): + lzd = LZMADecompressor(lzma.FORMAT_ALONE) + self._test_decompressor(lzd, COMPRESSED_ALONE, lzma.CHECK_NONE) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_decompressor_raw_1(self): + lzd = LZMADecompressor(lzma.FORMAT_RAW, filters=FILTERS_RAW_1) + self._test_decompressor(lzd, COMPRESSED_RAW_1, lzma.CHECK_NONE) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_decompressor_raw_2(self): + lzd = LZMADecompressor(lzma.FORMAT_RAW, filters=FILTERS_RAW_2) + self._test_decompressor(lzd, COMPRESSED_RAW_2, lzma.CHECK_NONE) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_decompressor_raw_3(self): + lzd = LZMADecompressor(lzma.FORMAT_RAW, filters=FILTERS_RAW_3) + self._test_decompressor(lzd, COMPRESSED_RAW_3, lzma.CHECK_NONE) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_decompressor_raw_4(self): + lzd = LZMADecompressor(lzma.FORMAT_RAW, filters=FILTERS_RAW_4) + self._test_decompressor(lzd, COMPRESSED_RAW_4, lzma.CHECK_NONE) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_decompressor_chunks(self): + lzd = LZMADecompressor() + out = [] + for i in range(0, len(COMPRESSED_XZ), 10): + self.assertFalse(lzd.eof) + out.append(lzd.decompress(COMPRESSED_XZ[i:i+10])) + out = b"".join(out) + self.assertEqual(out, INPUT) + self.assertEqual(lzd.check, lzma.CHECK_CRC64) + self.assertTrue(lzd.eof) + self.assertEqual(lzd.unused_data, b"") + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_decompressor_chunks_empty(self): + lzd = LZMADecompressor() + out = [] + for i in range(0, len(COMPRESSED_XZ), 10): + self.assertFalse(lzd.eof) + out.append(lzd.decompress(b'')) + out.append(lzd.decompress(b'')) + out.append(lzd.decompress(b'')) + out.append(lzd.decompress(COMPRESSED_XZ[i:i+10])) + out = b"".join(out) + self.assertEqual(out, INPUT) + self.assertEqual(lzd.check, lzma.CHECK_CRC64) + self.assertTrue(lzd.eof) + self.assertEqual(lzd.unused_data, b"") + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_decompressor_chunks_maxsize(self): + lzd = LZMADecompressor() + max_length = 100 + out = [] + + # Feed first half the input + len_ = len(COMPRESSED_XZ) // 2 + out.append(lzd.decompress(COMPRESSED_XZ[:len_], + max_length=max_length)) + self.assertFalse(lzd.needs_input) + self.assertEqual(len(out[-1]), max_length) + + # Retrieve more data without providing more input + out.append(lzd.decompress(b'', max_length=max_length)) + self.assertFalse(lzd.needs_input) + self.assertEqual(len(out[-1]), max_length) + + # Retrieve more data while providing more input + out.append(lzd.decompress(COMPRESSED_XZ[len_:], + max_length=max_length)) + self.assertLessEqual(len(out[-1]), max_length) + + # Retrieve remaining uncompressed data + while not lzd.eof: + out.append(lzd.decompress(b'', max_length=max_length)) + self.assertLessEqual(len(out[-1]), max_length) + + out = b"".join(out) + self.assertEqual(out, INPUT) + self.assertEqual(lzd.check, lzma.CHECK_CRC64) + self.assertEqual(lzd.unused_data, b"") + + def test_decompressor_inputbuf_1(self): + # Test reusing input buffer after moving existing + # contents to beginning + lzd = LZMADecompressor() + out = [] + + # Create input buffer and fill it + self.assertEqual(lzd.decompress(COMPRESSED_XZ[:100], + max_length=0), b'') + + # Retrieve some results, freeing capacity at beginning + # of input buffer + out.append(lzd.decompress(b'', 2)) + + # Add more data that fits into input buffer after + # moving existing data to beginning + out.append(lzd.decompress(COMPRESSED_XZ[100:105], 15)) + + # Decompress rest of data + out.append(lzd.decompress(COMPRESSED_XZ[105:])) + self.assertEqual(b''.join(out), INPUT) + + def test_decompressor_inputbuf_2(self): + # Test reusing input buffer by appending data at the + # end right away + lzd = LZMADecompressor() + out = [] + + # Create input buffer and empty it + self.assertEqual(lzd.decompress(COMPRESSED_XZ[:200], + max_length=0), b'') + out.append(lzd.decompress(b'')) + + # Fill buffer with new data + out.append(lzd.decompress(COMPRESSED_XZ[200:280], 2)) + + # Append some more data, not enough to require resize + out.append(lzd.decompress(COMPRESSED_XZ[280:300], 2)) + + # Decompress rest of data + out.append(lzd.decompress(COMPRESSED_XZ[300:])) + self.assertEqual(b''.join(out), INPUT) + + def test_decompressor_inputbuf_3(self): + # Test reusing input buffer after extending it + + lzd = LZMADecompressor() + out = [] + + # Create almost full input buffer + out.append(lzd.decompress(COMPRESSED_XZ[:200], 5)) + + # Add even more data to it, requiring resize + out.append(lzd.decompress(COMPRESSED_XZ[200:300], 5)) + + # Decompress rest of data + out.append(lzd.decompress(COMPRESSED_XZ[300:])) + self.assertEqual(b''.join(out), INPUT) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_decompressor_unused_data(self): + lzd = LZMADecompressor() + extra = b"fooblibar" + self._test_decompressor(lzd, COMPRESSED_XZ + extra, lzma.CHECK_CRC64, + unused_data=extra) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_decompressor_bad_input(self): + lzd = LZMADecompressor() + self.assertRaises(LZMAError, lzd.decompress, COMPRESSED_RAW_1) + + lzd = LZMADecompressor(lzma.FORMAT_XZ) + self.assertRaises(LZMAError, lzd.decompress, COMPRESSED_ALONE) + + lzd = LZMADecompressor(lzma.FORMAT_ALONE) + self.assertRaises(LZMAError, lzd.decompress, COMPRESSED_XZ) + + lzd = LZMADecompressor(lzma.FORMAT_RAW, filters=FILTERS_RAW_1) + self.assertRaises(LZMAError, lzd.decompress, COMPRESSED_XZ) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_decompressor_bug_28275(self): + # Test coverage for Issue 28275 + lzd = LZMADecompressor() + self.assertRaises(LZMAError, lzd.decompress, COMPRESSED_RAW_1) + # Previously, a second call could crash due to internal inconsistency + self.assertRaises(LZMAError, lzd.decompress, COMPRESSED_RAW_1) + + # Test that LZMACompressor->LZMADecompressor preserves the input data. + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_roundtrip_xz(self): + lzc = LZMACompressor() + cdata = lzc.compress(INPUT) + lzc.flush() + lzd = LZMADecompressor() + self._test_decompressor(lzd, cdata, lzma.CHECK_CRC64) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_roundtrip_alone(self): + lzc = LZMACompressor(lzma.FORMAT_ALONE) + cdata = lzc.compress(INPUT) + lzc.flush() + lzd = LZMADecompressor() + self._test_decompressor(lzd, cdata, lzma.CHECK_NONE) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_roundtrip_raw(self): + lzc = LZMACompressor(lzma.FORMAT_RAW, filters=FILTERS_RAW_4) + cdata = lzc.compress(INPUT) + lzc.flush() + lzd = LZMADecompressor(lzma.FORMAT_RAW, filters=FILTERS_RAW_4) + self._test_decompressor(lzd, cdata, lzma.CHECK_NONE) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_roundtrip_raw_empty(self): + lzc = LZMACompressor(lzma.FORMAT_RAW, filters=FILTERS_RAW_4) + cdata = lzc.compress(INPUT) + cdata += lzc.compress(b'') + cdata += lzc.compress(b'') + cdata += lzc.compress(b'') + cdata += lzc.flush() + lzd = LZMADecompressor(lzma.FORMAT_RAW, filters=FILTERS_RAW_4) + self._test_decompressor(lzd, cdata, lzma.CHECK_NONE) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_roundtrip_chunks(self): + lzc = LZMACompressor() + cdata = [] + for i in range(0, len(INPUT), 10): + cdata.append(lzc.compress(INPUT[i:i+10])) + cdata.append(lzc.flush()) + cdata = b"".join(cdata) + lzd = LZMADecompressor() + self._test_decompressor(lzd, cdata, lzma.CHECK_CRC64) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_roundtrip_empty_chunks(self): + lzc = LZMACompressor() + cdata = [] + for i in range(0, len(INPUT), 10): + cdata.append(lzc.compress(INPUT[i:i+10])) + cdata.append(lzc.compress(b'')) + cdata.append(lzc.compress(b'')) + cdata.append(lzc.compress(b'')) + cdata.append(lzc.flush()) + cdata = b"".join(cdata) + lzd = LZMADecompressor() + self._test_decompressor(lzd, cdata, lzma.CHECK_CRC64) + + # LZMADecompressor intentionally does not handle concatenated streams. + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_decompressor_multistream(self): + lzd = LZMADecompressor() + self._test_decompressor(lzd, COMPRESSED_XZ + COMPRESSED_ALONE, + lzma.CHECK_CRC64, unused_data=COMPRESSED_ALONE) + + # Test with inputs larger than 4GiB. + + @support.skip_if_pgo_task + @bigmemtest(size=_4G + 100, memuse=2) + def test_compressor_bigmem(self, size): + lzc = LZMACompressor() + cdata = lzc.compress(b"x" * size) + lzc.flush() + ddata = lzma.decompress(cdata) + try: + self.assertEqual(len(ddata), size) + self.assertEqual(len(ddata.strip(b"x")), 0) + finally: + ddata = None + + @support.skip_if_pgo_task + @bigmemtest(size=_4G + 100, memuse=3) + def test_decompressor_bigmem(self, size): + lzd = LZMADecompressor() + blocksize = min(10 * 1024 * 1024, size) + block = random.randbytes(blocksize) + try: + input = block * ((size-1) // blocksize + 1) + cdata = lzma.compress(input) + ddata = lzd.decompress(cdata) + self.assertEqual(ddata, input) + finally: + input = cdata = ddata = None + + # Pickling raises an exception; there's no way to serialize an lzma_stream. + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_pickle(self): + for proto in range(pickle.HIGHEST_PROTOCOL + 1): + with self.assertRaises(TypeError): + pickle.dumps(LZMACompressor(), proto) + with self.assertRaises(TypeError): + pickle.dumps(LZMADecompressor(), proto) + + @support.refcount_test + def test_refleaks_in_decompressor___init__(self): + gettotalrefcount = support.get_attribute(sys, 'gettotalrefcount') + lzd = LZMADecompressor() + refs_before = gettotalrefcount() + for i in range(100): + lzd.__init__() + self.assertAlmostEqual(gettotalrefcount() - refs_before, 0, delta=10) + + def test_uninitialized_LZMADecompressor_crash(self): + self.assertEqual(LZMADecompressor.__new__(LZMADecompressor). + decompress(bytes()), b'') + + +class CompressDecompressFunctionTestCase(unittest.TestCase): + + # Test error cases: + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_bad_args(self): + self.assertRaises(TypeError, lzma.compress) + self.assertRaises(TypeError, lzma.compress, []) + self.assertRaises(TypeError, lzma.compress, b"", format="xz") + self.assertRaises(TypeError, lzma.compress, b"", check="none") + self.assertRaises(TypeError, lzma.compress, b"", preset="blah") + self.assertRaises(TypeError, lzma.compress, b"", filters=1024) + # Can't specify a preset and a custom filter chain at the same time. + with self.assertRaises(ValueError): + lzma.compress(b"", preset=3, filters=[{"id": lzma.FILTER_LZMA2}]) + + self.assertRaises(TypeError, lzma.decompress) + self.assertRaises(TypeError, lzma.decompress, []) + self.assertRaises(TypeError, lzma.decompress, b"", format="lzma") + self.assertRaises(TypeError, lzma.decompress, b"", memlimit=7.3e9) + with self.assertRaises(TypeError): + lzma.decompress(b"", format=lzma.FORMAT_RAW, filters={}) + # Cannot specify a memory limit with FILTER_RAW. + with self.assertRaises(ValueError): + lzma.decompress(b"", format=lzma.FORMAT_RAW, memlimit=0x1000000) + # Can only specify a custom filter chain with FILTER_RAW. + with self.assertRaises(ValueError): + lzma.decompress(b"", filters=FILTERS_RAW_1) + with self.assertRaises(ValueError): + lzma.decompress(b"", format=lzma.FORMAT_XZ, filters=FILTERS_RAW_1) + with self.assertRaises(ValueError): + lzma.decompress( + b"", format=lzma.FORMAT_ALONE, filters=FILTERS_RAW_1) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_decompress_memlimit(self): + with self.assertRaises(LZMAError): + lzma.decompress(COMPRESSED_XZ, memlimit=1024) + with self.assertRaises(LZMAError): + lzma.decompress( + COMPRESSED_XZ, format=lzma.FORMAT_XZ, memlimit=1024) + with self.assertRaises(LZMAError): + lzma.decompress( + COMPRESSED_ALONE, format=lzma.FORMAT_ALONE, memlimit=1024) + + # Test LZMADecompressor on known-good input data. + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_decompress_good_input(self): + ddata = lzma.decompress(COMPRESSED_XZ) + self.assertEqual(ddata, INPUT) + + ddata = lzma.decompress(COMPRESSED_ALONE) + self.assertEqual(ddata, INPUT) + + ddata = lzma.decompress(COMPRESSED_XZ, lzma.FORMAT_XZ) + self.assertEqual(ddata, INPUT) + + ddata = lzma.decompress(COMPRESSED_ALONE, lzma.FORMAT_ALONE) + self.assertEqual(ddata, INPUT) + + ddata = lzma.decompress( + COMPRESSED_RAW_1, lzma.FORMAT_RAW, filters=FILTERS_RAW_1) + self.assertEqual(ddata, INPUT) + + ddata = lzma.decompress( + COMPRESSED_RAW_2, lzma.FORMAT_RAW, filters=FILTERS_RAW_2) + self.assertEqual(ddata, INPUT) + + ddata = lzma.decompress( + COMPRESSED_RAW_3, lzma.FORMAT_RAW, filters=FILTERS_RAW_3) + self.assertEqual(ddata, INPUT) + + ddata = lzma.decompress( + COMPRESSED_RAW_4, lzma.FORMAT_RAW, filters=FILTERS_RAW_4) + self.assertEqual(ddata, INPUT) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_decompress_incomplete_input(self): + self.assertRaises(LZMAError, lzma.decompress, COMPRESSED_XZ[:128]) + self.assertRaises(LZMAError, lzma.decompress, COMPRESSED_ALONE[:128]) + self.assertRaises(LZMAError, lzma.decompress, COMPRESSED_RAW_1[:128], + format=lzma.FORMAT_RAW, filters=FILTERS_RAW_1) + self.assertRaises(LZMAError, lzma.decompress, COMPRESSED_RAW_2[:128], + format=lzma.FORMAT_RAW, filters=FILTERS_RAW_2) + self.assertRaises(LZMAError, lzma.decompress, COMPRESSED_RAW_3[:128], + format=lzma.FORMAT_RAW, filters=FILTERS_RAW_3) + self.assertRaises(LZMAError, lzma.decompress, COMPRESSED_RAW_4[:128], + format=lzma.FORMAT_RAW, filters=FILTERS_RAW_4) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_decompress_bad_input(self): + with self.assertRaises(LZMAError): + lzma.decompress(COMPRESSED_BOGUS) + with self.assertRaises(LZMAError): + lzma.decompress(COMPRESSED_RAW_1) + with self.assertRaises(LZMAError): + lzma.decompress(COMPRESSED_ALONE, format=lzma.FORMAT_XZ) + with self.assertRaises(LZMAError): + lzma.decompress(COMPRESSED_XZ, format=lzma.FORMAT_ALONE) + with self.assertRaises(LZMAError): + lzma.decompress(COMPRESSED_XZ, format=lzma.FORMAT_RAW, + filters=FILTERS_RAW_1) + + # Test that compress()->decompress() preserves the input data. + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_roundtrip(self): + cdata = lzma.compress(INPUT) + ddata = lzma.decompress(cdata) + self.assertEqual(ddata, INPUT) + + cdata = lzma.compress(INPUT, lzma.FORMAT_XZ) + ddata = lzma.decompress(cdata) + self.assertEqual(ddata, INPUT) + + cdata = lzma.compress(INPUT, lzma.FORMAT_ALONE) + ddata = lzma.decompress(cdata) + self.assertEqual(ddata, INPUT) + + cdata = lzma.compress(INPUT, lzma.FORMAT_RAW, filters=FILTERS_RAW_4) + ddata = lzma.decompress(cdata, lzma.FORMAT_RAW, filters=FILTERS_RAW_4) + self.assertEqual(ddata, INPUT) + + # Unlike LZMADecompressor, decompress() *does* handle concatenated streams. + + def test_decompress_multistream(self): + ddata = lzma.decompress(COMPRESSED_XZ + COMPRESSED_ALONE) + self.assertEqual(ddata, INPUT * 2) + + # Test robust handling of non-LZMA data following the compressed stream(s). + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_decompress_trailing_junk(self): + ddata = lzma.decompress(COMPRESSED_XZ + COMPRESSED_BOGUS) + self.assertEqual(ddata, INPUT) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_decompress_multistream_trailing_junk(self): + ddata = lzma.decompress(COMPRESSED_XZ * 3 + COMPRESSED_BOGUS) + self.assertEqual(ddata, INPUT * 3) + + +class TempFile: + """Context manager - creates a file, and deletes it on __exit__.""" + + def __init__(self, filename, data=b""): + self.filename = filename + self.data = data + + def __enter__(self): + with open(self.filename, "wb") as f: + f.write(self.data) + + def __exit__(self, *args): + unlink(self.filename) + + +class FileTestCase(unittest.TestCase): + + def test_init(self): + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + self.assertIsInstance(f, LZMAFile) + self.assertEqual(f.mode, "rb") + with LZMAFile(BytesIO(), "w") as f: + self.assertIsInstance(f, LZMAFile) + self.assertEqual(f.mode, "wb") + with LZMAFile(BytesIO(), "x") as f: + self.assertIsInstance(f, LZMAFile) + self.assertEqual(f.mode, "wb") + with LZMAFile(BytesIO(), "a") as f: + self.assertIsInstance(f, LZMAFile) + self.assertEqual(f.mode, "wb") + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_init_with_PathLike_filename(self): + filename = FakePath(TESTFN) + with TempFile(filename, COMPRESSED_XZ): + with LZMAFile(filename) as f: + self.assertEqual(f.read(), INPUT) + self.assertEqual(f.name, TESTFN) + with LZMAFile(filename, "a") as f: + f.write(INPUT) + self.assertEqual(f.name, TESTFN) + with LZMAFile(filename) as f: + self.assertEqual(f.read(), INPUT * 2) + self.assertEqual(f.name, TESTFN) + + def test_init_with_filename(self): + with TempFile(TESTFN, COMPRESSED_XZ): + with LZMAFile(TESTFN) as f: + self.assertEqual(f.name, TESTFN) + self.assertEqual(f.mode, 'rb') + with LZMAFile(TESTFN, "w") as f: + self.assertEqual(f.name, TESTFN) + self.assertEqual(f.mode, 'wb') + with LZMAFile(TESTFN, "a") as f: + self.assertEqual(f.name, TESTFN) + self.assertEqual(f.mode, 'wb') + + def test_init_mode(self): + with TempFile(TESTFN): + with LZMAFile(TESTFN, "r") as f: + self.assertIsInstance(f, LZMAFile) + self.assertEqual(f.mode, "rb") + with LZMAFile(TESTFN, "rb") as f: + self.assertIsInstance(f, LZMAFile) + self.assertEqual(f.mode, "rb") + with LZMAFile(TESTFN, "w") as f: + self.assertIsInstance(f, LZMAFile) + self.assertEqual(f.mode, "wb") + with LZMAFile(TESTFN, "wb") as f: + self.assertIsInstance(f, LZMAFile) + self.assertEqual(f.mode, "wb") + with LZMAFile(TESTFN, "a") as f: + self.assertIsInstance(f, LZMAFile) + self.assertEqual(f.mode, "wb") + with LZMAFile(TESTFN, "ab") as f: + self.assertIsInstance(f, LZMAFile) + self.assertEqual(f.mode, "wb") + + def test_init_with_x_mode(self): + self.addCleanup(unlink, TESTFN) + for mode in ("x", "xb"): + unlink(TESTFN) + with LZMAFile(TESTFN, mode) as f: + self.assertIsInstance(f, LZMAFile) + self.assertEqual(f.mode, 'wb') + with self.assertRaises(FileExistsError): + LZMAFile(TESTFN, mode) + + def test_init_bad_mode(self): + with self.assertRaises(ValueError): + LZMAFile(BytesIO(COMPRESSED_XZ), (3, "x")) + with self.assertRaises(ValueError): + LZMAFile(BytesIO(COMPRESSED_XZ), "") + with self.assertRaises(ValueError): + LZMAFile(BytesIO(COMPRESSED_XZ), "xt") + with self.assertRaises(ValueError): + LZMAFile(BytesIO(COMPRESSED_XZ), "x+") + with self.assertRaises(ValueError): + LZMAFile(BytesIO(COMPRESSED_XZ), "rx") + with self.assertRaises(ValueError): + LZMAFile(BytesIO(COMPRESSED_XZ), "wx") + with self.assertRaises(ValueError): + LZMAFile(BytesIO(COMPRESSED_XZ), "rt") + with self.assertRaises(ValueError): + LZMAFile(BytesIO(COMPRESSED_XZ), "r+") + with self.assertRaises(ValueError): + LZMAFile(BytesIO(COMPRESSED_XZ), "wt") + with self.assertRaises(ValueError): + LZMAFile(BytesIO(COMPRESSED_XZ), "w+") + with self.assertRaises(ValueError): + LZMAFile(BytesIO(COMPRESSED_XZ), "rw") + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_init_bad_check(self): + with self.assertRaises(TypeError): + LZMAFile(BytesIO(), "w", check=b"asd") + # CHECK_UNKNOWN and anything above CHECK_ID_MAX should be invalid. + with self.assertRaises(LZMAError): + LZMAFile(BytesIO(), "w", check=lzma.CHECK_UNKNOWN) + with self.assertRaises(LZMAError): + LZMAFile(BytesIO(), "w", check=lzma.CHECK_ID_MAX + 3) + # Cannot specify a check with mode="r". + with self.assertRaises(ValueError): + LZMAFile(BytesIO(COMPRESSED_XZ), check=lzma.CHECK_NONE) + with self.assertRaises(ValueError): + LZMAFile(BytesIO(COMPRESSED_XZ), check=lzma.CHECK_CRC32) + with self.assertRaises(ValueError): + LZMAFile(BytesIO(COMPRESSED_XZ), check=lzma.CHECK_CRC64) + with self.assertRaises(ValueError): + LZMAFile(BytesIO(COMPRESSED_XZ), check=lzma.CHECK_SHA256) + with self.assertRaises(ValueError): + LZMAFile(BytesIO(COMPRESSED_XZ), check=lzma.CHECK_UNKNOWN) + + def test_init_bad_preset(self): + with self.assertRaises(TypeError): + LZMAFile(BytesIO(), "w", preset=4.39) + with self.assertRaises(LZMAError): + LZMAFile(BytesIO(), "w", preset=10) + with self.assertRaises(LZMAError): + LZMAFile(BytesIO(), "w", preset=23) + with self.assertRaises(OverflowError): + LZMAFile(BytesIO(), "w", preset=-1) + with self.assertRaises(OverflowError): + LZMAFile(BytesIO(), "w", preset=-7) + with self.assertRaises(TypeError): + LZMAFile(BytesIO(), "w", preset="foo") + # Cannot specify a preset with mode="r". + with self.assertRaises(ValueError): + LZMAFile(BytesIO(COMPRESSED_XZ), preset=3) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_init_bad_filter_spec(self): + with self.assertRaises(TypeError): + LZMAFile(BytesIO(), "w", filters=[b"wobsite"]) + with self.assertRaises(ValueError): + LZMAFile(BytesIO(), "w", filters=[{"xyzzy": 3}]) + with self.assertRaises(ValueError): + LZMAFile(BytesIO(), "w", filters=[{"id": 98765}]) + with self.assertRaises(ValueError): + LZMAFile(BytesIO(), "w", + filters=[{"id": lzma.FILTER_LZMA2, "foo": 0}]) + with self.assertRaises(ValueError): + LZMAFile(BytesIO(), "w", + filters=[{"id": lzma.FILTER_DELTA, "foo": 0}]) + with self.assertRaises(ValueError): + LZMAFile(BytesIO(), "w", + filters=[{"id": lzma.FILTER_X86, "foo": 0}]) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_init_with_preset_and_filters(self): + with self.assertRaises(ValueError): + LZMAFile(BytesIO(), "w", format=lzma.FORMAT_RAW, + preset=6, filters=FILTERS_RAW_1) + + def test_close(self): + with BytesIO(COMPRESSED_XZ) as src: + f = LZMAFile(src) + f.close() + # LZMAFile.close() should not close the underlying file object. + self.assertFalse(src.closed) + # Try closing an already-closed LZMAFile. + f.close() + self.assertFalse(src.closed) + + # Test with a real file on disk, opened directly by LZMAFile. + with TempFile(TESTFN, COMPRESSED_XZ): + f = LZMAFile(TESTFN) + fp = f._fp + f.close() + # Here, LZMAFile.close() *should* close the underlying file object. + self.assertTrue(fp.closed) + # Try closing an already-closed LZMAFile. + f.close() + + def test_closed(self): + f = LZMAFile(BytesIO(COMPRESSED_XZ)) + try: + self.assertFalse(f.closed) + f.read() + self.assertFalse(f.closed) + finally: + f.close() + self.assertTrue(f.closed) + + f = LZMAFile(BytesIO(), "w") + try: + self.assertFalse(f.closed) + finally: + f.close() + self.assertTrue(f.closed) + + def test_fileno(self): + f = LZMAFile(BytesIO(COMPRESSED_XZ)) + try: + self.assertRaises(UnsupportedOperation, f.fileno) + finally: + f.close() + self.assertRaises(ValueError, f.fileno) + with TempFile(TESTFN, COMPRESSED_XZ): + f = LZMAFile(TESTFN) + try: + self.assertEqual(f.fileno(), f._fp.fileno()) + self.assertIsInstance(f.fileno(), int) + finally: + f.close() + self.assertRaises(ValueError, f.fileno) + + def test_seekable(self): + f = LZMAFile(BytesIO(COMPRESSED_XZ)) + try: + self.assertTrue(f.seekable()) + f.read() + self.assertTrue(f.seekable()) + finally: + f.close() + self.assertRaises(ValueError, f.seekable) + + f = LZMAFile(BytesIO(), "w") + try: + self.assertFalse(f.seekable()) + finally: + f.close() + self.assertRaises(ValueError, f.seekable) + + src = BytesIO(COMPRESSED_XZ) + src.seekable = lambda: False + f = LZMAFile(src) + try: + self.assertFalse(f.seekable()) + finally: + f.close() + self.assertRaises(ValueError, f.seekable) + + def test_readable(self): + f = LZMAFile(BytesIO(COMPRESSED_XZ)) + try: + self.assertTrue(f.readable()) + f.read() + self.assertTrue(f.readable()) + finally: + f.close() + self.assertRaises(ValueError, f.readable) + + f = LZMAFile(BytesIO(), "w") + try: + self.assertFalse(f.readable()) + finally: + f.close() + self.assertRaises(ValueError, f.readable) + + def test_writable(self): + f = LZMAFile(BytesIO(COMPRESSED_XZ)) + try: + self.assertFalse(f.writable()) + f.read() + self.assertFalse(f.writable()) + finally: + f.close() + self.assertRaises(ValueError, f.writable) + + f = LZMAFile(BytesIO(), "w") + try: + self.assertTrue(f.writable()) + finally: + f.close() + self.assertRaises(ValueError, f.writable) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_read(self): + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + self.assertEqual(f.read(), INPUT) + self.assertEqual(f.read(), b"") + with LZMAFile(BytesIO(COMPRESSED_ALONE)) as f: + self.assertEqual(f.read(), INPUT) + with LZMAFile(BytesIO(COMPRESSED_XZ), format=lzma.FORMAT_XZ) as f: + self.assertEqual(f.read(), INPUT) + self.assertEqual(f.read(), b"") + with LZMAFile(BytesIO(COMPRESSED_ALONE), format=lzma.FORMAT_ALONE) as f: + self.assertEqual(f.read(), INPUT) + self.assertEqual(f.read(), b"") + with LZMAFile(BytesIO(COMPRESSED_RAW_1), + format=lzma.FORMAT_RAW, filters=FILTERS_RAW_1) as f: + self.assertEqual(f.read(), INPUT) + self.assertEqual(f.read(), b"") + with LZMAFile(BytesIO(COMPRESSED_RAW_2), + format=lzma.FORMAT_RAW, filters=FILTERS_RAW_2) as f: + self.assertEqual(f.read(), INPUT) + self.assertEqual(f.read(), b"") + with LZMAFile(BytesIO(COMPRESSED_RAW_3), + format=lzma.FORMAT_RAW, filters=FILTERS_RAW_3) as f: + self.assertEqual(f.read(), INPUT) + self.assertEqual(f.read(), b"") + with LZMAFile(BytesIO(COMPRESSED_RAW_4), + format=lzma.FORMAT_RAW, filters=FILTERS_RAW_4) as f: + self.assertEqual(f.read(), INPUT) + self.assertEqual(f.read(), b"") + + def test_read_0(self): + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + self.assertEqual(f.read(0), b"") + with LZMAFile(BytesIO(COMPRESSED_ALONE)) as f: + self.assertEqual(f.read(0), b"") + with LZMAFile(BytesIO(COMPRESSED_XZ), format=lzma.FORMAT_XZ) as f: + self.assertEqual(f.read(0), b"") + with LZMAFile(BytesIO(COMPRESSED_ALONE), format=lzma.FORMAT_ALONE) as f: + self.assertEqual(f.read(0), b"") + + def test_read_10(self): + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + chunks = [] + while result := f.read(10): + self.assertLessEqual(len(result), 10) + chunks.append(result) + self.assertEqual(b"".join(chunks), INPUT) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_read_multistream(self): + with LZMAFile(BytesIO(COMPRESSED_XZ * 5)) as f: + self.assertEqual(f.read(), INPUT * 5) + with LZMAFile(BytesIO(COMPRESSED_XZ + COMPRESSED_ALONE)) as f: + self.assertEqual(f.read(), INPUT * 2) + with LZMAFile(BytesIO(COMPRESSED_RAW_3 * 4), + format=lzma.FORMAT_RAW, filters=FILTERS_RAW_3) as f: + self.assertEqual(f.read(), INPUT * 4) + + def test_read_multistream_buffer_size_aligned(self): + # Test the case where a stream boundary coincides with the end + # of the raw read buffer. + saved_buffer_size = _compression.BUFFER_SIZE + _compression.BUFFER_SIZE = len(COMPRESSED_XZ) + try: + with LZMAFile(BytesIO(COMPRESSED_XZ * 5)) as f: + self.assertEqual(f.read(), INPUT * 5) + finally: + _compression.BUFFER_SIZE = saved_buffer_size + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_read_trailing_junk(self): + with LZMAFile(BytesIO(COMPRESSED_XZ + COMPRESSED_BOGUS)) as f: + self.assertEqual(f.read(), INPUT) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_read_multistream_trailing_junk(self): + with LZMAFile(BytesIO(COMPRESSED_XZ * 5 + COMPRESSED_BOGUS)) as f: + self.assertEqual(f.read(), INPUT * 5) + + def test_read_from_file(self): + with TempFile(TESTFN, COMPRESSED_XZ): + with LZMAFile(TESTFN) as f: + self.assertEqual(f.read(), INPUT) + self.assertEqual(f.read(), b"") + self.assertEqual(f.name, TESTFN) + self.assertIsInstance(f.fileno(), int) + self.assertEqual(f.mode, 'rb') + self.assertIs(f.readable(), True) + self.assertIs(f.writable(), False) + self.assertIs(f.seekable(), True) + self.assertIs(f.closed, False) + self.assertIs(f.closed, True) + with self.assertRaises(ValueError): + f.name + self.assertRaises(ValueError, f.fileno) + self.assertEqual(f.mode, 'rb') + self.assertRaises(ValueError, f.readable) + self.assertRaises(ValueError, f.writable) + self.assertRaises(ValueError, f.seekable) + + def test_read_from_file_with_bytes_filename(self): + bytes_filename = os.fsencode(TESTFN) + with TempFile(TESTFN, COMPRESSED_XZ): + with LZMAFile(bytes_filename) as f: + self.assertEqual(f.read(), INPUT) + self.assertEqual(f.read(), b"") + self.assertEqual(f.name, bytes_filename) + + def test_read_from_fileobj(self): + with TempFile(TESTFN, COMPRESSED_XZ): + with open(TESTFN, 'rb') as raw: + with LZMAFile(raw) as f: + self.assertEqual(f.read(), INPUT) + self.assertEqual(f.read(), b"") + self.assertEqual(f.name, raw.name) + self.assertEqual(f.fileno(), raw.fileno()) + self.assertEqual(f.mode, 'rb') + self.assertIs(f.readable(), True) + self.assertIs(f.writable(), False) + self.assertIs(f.seekable(), True) + self.assertIs(f.closed, False) + self.assertIs(f.closed, True) + with self.assertRaises(ValueError): + f.name + self.assertRaises(ValueError, f.fileno) + self.assertEqual(f.mode, 'rb') + self.assertRaises(ValueError, f.readable) + self.assertRaises(ValueError, f.writable) + self.assertRaises(ValueError, f.seekable) + + def test_read_from_fileobj_with_int_name(self): + with TempFile(TESTFN, COMPRESSED_XZ): + fd = os.open(TESTFN, os.O_RDONLY) + with open(fd, 'rb') as raw: + with LZMAFile(raw) as f: + self.assertEqual(f.read(), INPUT) + self.assertEqual(f.read(), b"") + self.assertEqual(f.name, raw.name) + self.assertEqual(f.fileno(), raw.fileno()) + self.assertEqual(f.mode, 'rb') + self.assertIs(f.readable(), True) + self.assertIs(f.writable(), False) + self.assertIs(f.seekable(), True) + self.assertIs(f.closed, False) + self.assertIs(f.closed, True) + with self.assertRaises(ValueError): + f.name + self.assertRaises(ValueError, f.fileno) + self.assertEqual(f.mode, 'rb') + self.assertRaises(ValueError, f.readable) + self.assertRaises(ValueError, f.writable) + self.assertRaises(ValueError, f.seekable) + + def test_read_incomplete(self): + with LZMAFile(BytesIO(COMPRESSED_XZ[:128])) as f: + self.assertRaises(EOFError, f.read) + + def test_read_truncated(self): + # Drop stream footer: CRC (4 bytes), index size (4 bytes), + # flags (2 bytes) and magic number (2 bytes). + truncated = COMPRESSED_XZ[:-12] + with LZMAFile(BytesIO(truncated)) as f: + self.assertRaises(EOFError, f.read) + with LZMAFile(BytesIO(truncated)) as f: + self.assertEqual(f.read(len(INPUT)), INPUT) + self.assertRaises(EOFError, f.read, 1) + # Incomplete 12-byte header. + for i in range(12): + with LZMAFile(BytesIO(truncated[:i])) as f: + self.assertRaises(EOFError, f.read, 1) + + def test_read_bad_args(self): + f = LZMAFile(BytesIO(COMPRESSED_XZ)) + f.close() + self.assertRaises(ValueError, f.read) + with LZMAFile(BytesIO(), "w") as f: + self.assertRaises(ValueError, f.read) + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + self.assertRaises(TypeError, f.read, float()) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_read_bad_data(self): + with LZMAFile(BytesIO(COMPRESSED_BOGUS)) as f: + self.assertRaises(LZMAError, f.read) + + def test_read1(self): + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + blocks = [] + while result := f.read1(): + blocks.append(result) + self.assertEqual(b"".join(blocks), INPUT) + self.assertEqual(f.read1(), b"") + + def test_read1_0(self): + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + self.assertEqual(f.read1(0), b"") + + def test_read1_10(self): + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + blocks = [] + while result := f.read1(10): + blocks.append(result) + self.assertEqual(b"".join(blocks), INPUT) + self.assertEqual(f.read1(), b"") + + def test_read1_multistream(self): + with LZMAFile(BytesIO(COMPRESSED_XZ * 5)) as f: + blocks = [] + while result := f.read1(): + blocks.append(result) + self.assertEqual(b"".join(blocks), INPUT * 5) + self.assertEqual(f.read1(), b"") + + def test_read1_bad_args(self): + f = LZMAFile(BytesIO(COMPRESSED_XZ)) + f.close() + self.assertRaises(ValueError, f.read1) + with LZMAFile(BytesIO(), "w") as f: + self.assertRaises(ValueError, f.read1) + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + self.assertRaises(TypeError, f.read1, None) + + def test_peek(self): + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + result = f.peek() + self.assertGreater(len(result), 0) + self.assertTrue(INPUT.startswith(result)) + self.assertEqual(f.read(), INPUT) + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + result = f.peek(10) + self.assertGreater(len(result), 0) + self.assertTrue(INPUT.startswith(result)) + self.assertEqual(f.read(), INPUT) + + def test_peek_bad_args(self): + with LZMAFile(BytesIO(), "w") as f: + self.assertRaises(ValueError, f.peek) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_iterator(self): + with BytesIO(INPUT) as f: + lines = f.readlines() + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + self.assertListEqual(list(iter(f)), lines) + with LZMAFile(BytesIO(COMPRESSED_ALONE)) as f: + self.assertListEqual(list(iter(f)), lines) + with LZMAFile(BytesIO(COMPRESSED_XZ), format=lzma.FORMAT_XZ) as f: + self.assertListEqual(list(iter(f)), lines) + with LZMAFile(BytesIO(COMPRESSED_ALONE), format=lzma.FORMAT_ALONE) as f: + self.assertListEqual(list(iter(f)), lines) + with LZMAFile(BytesIO(COMPRESSED_RAW_2), + format=lzma.FORMAT_RAW, filters=FILTERS_RAW_2) as f: + self.assertListEqual(list(iter(f)), lines) + + def test_readline(self): + with BytesIO(INPUT) as f: + lines = f.readlines() + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + for line in lines: + self.assertEqual(f.readline(), line) + + def test_readlines(self): + with BytesIO(INPUT) as f: + lines = f.readlines() + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + self.assertListEqual(f.readlines(), lines) + + def test_decompress_limited(self): + """Decompressed data buffering should be limited""" + bomb = lzma.compress(b'\0' * int(2e6), preset=6) + self.assertLess(len(bomb), _compression.BUFFER_SIZE) + + decomp = LZMAFile(BytesIO(bomb)) + self.assertEqual(decomp.read(1), b'\0') + max_decomp = 1 + DEFAULT_BUFFER_SIZE + self.assertLessEqual(decomp._buffer.raw.tell(), max_decomp, + "Excessive amount of data was decompressed") + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_write(self): + with BytesIO() as dst: + with LZMAFile(dst, "w") as f: + f.write(INPUT) + with self.assertRaises(AttributeError): + f.name + expected = lzma.compress(INPUT) + self.assertEqual(dst.getvalue(), expected) + with BytesIO() as dst: + with LZMAFile(dst, "w", format=lzma.FORMAT_XZ) as f: + f.write(INPUT) + expected = lzma.compress(INPUT, format=lzma.FORMAT_XZ) + self.assertEqual(dst.getvalue(), expected) + with BytesIO() as dst: + with LZMAFile(dst, "w", format=lzma.FORMAT_ALONE) as f: + f.write(INPUT) + expected = lzma.compress(INPUT, format=lzma.FORMAT_ALONE) + self.assertEqual(dst.getvalue(), expected) + with BytesIO() as dst: + with LZMAFile(dst, "w", format=lzma.FORMAT_RAW, + filters=FILTERS_RAW_2) as f: + f.write(INPUT) + expected = lzma.compress(INPUT, format=lzma.FORMAT_RAW, + filters=FILTERS_RAW_2) + self.assertEqual(dst.getvalue(), expected) + + def test_write_10(self): + with BytesIO() as dst: + with LZMAFile(dst, "w") as f: + for start in range(0, len(INPUT), 10): + f.write(INPUT[start:start+10]) + expected = lzma.compress(INPUT) + self.assertEqual(dst.getvalue(), expected) + + def test_write_append(self): + part1 = INPUT[:1024] + part2 = INPUT[1024:1536] + part3 = INPUT[1536:] + expected = b"".join(lzma.compress(x) for x in (part1, part2, part3)) + with BytesIO() as dst: + with LZMAFile(dst, "w") as f: + f.write(part1) + self.assertEqual(f.mode, 'wb') + with LZMAFile(dst, "a") as f: + f.write(part2) + self.assertEqual(f.mode, 'wb') + with LZMAFile(dst, "a") as f: + f.write(part3) + self.assertEqual(f.mode, 'wb') + self.assertEqual(dst.getvalue(), expected) + + def test_write_to_file(self): + try: + with LZMAFile(TESTFN, "w") as f: + f.write(INPUT) + self.assertEqual(f.name, TESTFN) + self.assertIsInstance(f.fileno(), int) + self.assertEqual(f.mode, 'wb') + self.assertIs(f.readable(), False) + self.assertIs(f.writable(), True) + self.assertIs(f.seekable(), False) + self.assertIs(f.closed, False) + self.assertIs(f.closed, True) + with self.assertRaises(ValueError): + f.name + self.assertRaises(ValueError, f.fileno) + self.assertEqual(f.mode, 'wb') + self.assertRaises(ValueError, f.readable) + self.assertRaises(ValueError, f.writable) + self.assertRaises(ValueError, f.seekable) + + expected = lzma.compress(INPUT) + with open(TESTFN, "rb") as f: + self.assertEqual(f.read(), expected) + finally: + unlink(TESTFN) + + def test_write_to_file_with_bytes_filename(self): + bytes_filename = os.fsencode(TESTFN) + try: + with LZMAFile(bytes_filename, "w") as f: + f.write(INPUT) + self.assertEqual(f.name, bytes_filename) + expected = lzma.compress(INPUT) + with open(TESTFN, "rb") as f: + self.assertEqual(f.read(), expected) + finally: + unlink(TESTFN) + + def test_write_to_fileobj(self): + try: + with open(TESTFN, "wb") as raw: + with LZMAFile(raw, "w") as f: + f.write(INPUT) + self.assertEqual(f.name, raw.name) + self.assertEqual(f.fileno(), raw.fileno()) + self.assertEqual(f.mode, 'wb') + self.assertIs(f.readable(), False) + self.assertIs(f.writable(), True) + self.assertIs(f.seekable(), False) + self.assertIs(f.closed, False) + self.assertIs(f.closed, True) + with self.assertRaises(ValueError): + f.name + self.assertRaises(ValueError, f.fileno) + self.assertEqual(f.mode, 'wb') + self.assertRaises(ValueError, f.readable) + self.assertRaises(ValueError, f.writable) + self.assertRaises(ValueError, f.seekable) + + expected = lzma.compress(INPUT) + with open(TESTFN, "rb") as f: + self.assertEqual(f.read(), expected) + finally: + unlink(TESTFN) + + def test_write_to_fileobj_with_int_name(self): + try: + fd = os.open(TESTFN, os.O_WRONLY | os.O_CREAT | os.O_TRUNC) + with open(fd, 'wb') as raw: + with LZMAFile(raw, "w") as f: + f.write(INPUT) + self.assertEqual(f.name, raw.name) + self.assertEqual(f.fileno(), raw.fileno()) + self.assertEqual(f.mode, 'wb') + self.assertIs(f.readable(), False) + self.assertIs(f.writable(), True) + self.assertIs(f.seekable(), False) + self.assertIs(f.closed, False) + self.assertIs(f.closed, True) + with self.assertRaises(ValueError): + f.name + self.assertRaises(ValueError, f.fileno) + self.assertEqual(f.mode, 'wb') + self.assertRaises(ValueError, f.readable) + self.assertRaises(ValueError, f.writable) + self.assertRaises(ValueError, f.seekable) + + expected = lzma.compress(INPUT) + with open(TESTFN, "rb") as f: + self.assertEqual(f.read(), expected) + finally: + unlink(TESTFN) + + def test_write_append_to_file(self): + part1 = INPUT[:1024] + part2 = INPUT[1024:1536] + part3 = INPUT[1536:] + expected = b"".join(lzma.compress(x) for x in (part1, part2, part3)) + try: + with LZMAFile(TESTFN, "w") as f: + f.write(part1) + self.assertEqual(f.mode, 'wb') + with LZMAFile(TESTFN, "a") as f: + f.write(part2) + self.assertEqual(f.mode, 'wb') + with LZMAFile(TESTFN, "a") as f: + f.write(part3) + self.assertEqual(f.mode, 'wb') + with open(TESTFN, "rb") as f: + self.assertEqual(f.read(), expected) + finally: + unlink(TESTFN) + + def test_write_bad_args(self): + f = LZMAFile(BytesIO(), "w") + f.close() + self.assertRaises(ValueError, f.write, b"foo") + with LZMAFile(BytesIO(COMPRESSED_XZ), "r") as f: + self.assertRaises(ValueError, f.write, b"bar") + with LZMAFile(BytesIO(), "w") as f: + self.assertRaises(TypeError, f.write, None) + self.assertRaises(TypeError, f.write, "text") + self.assertRaises(TypeError, f.write, 789) + + def test_writelines(self): + with BytesIO(INPUT) as f: + lines = f.readlines() + with BytesIO() as dst: + with LZMAFile(dst, "w") as f: + f.writelines(lines) + expected = lzma.compress(INPUT) + self.assertEqual(dst.getvalue(), expected) + + def test_seek_forward(self): + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + f.seek(555) + self.assertEqual(f.read(), INPUT[555:]) + + def test_seek_forward_across_streams(self): + with LZMAFile(BytesIO(COMPRESSED_XZ * 2)) as f: + f.seek(len(INPUT) + 123) + self.assertEqual(f.read(), INPUT[123:]) + + def test_seek_forward_relative_to_current(self): + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + f.read(100) + f.seek(1236, 1) + self.assertEqual(f.read(), INPUT[1336:]) + + def test_seek_forward_relative_to_end(self): + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + f.seek(-555, 2) + self.assertEqual(f.read(), INPUT[-555:]) + + def test_seek_backward(self): + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + f.read(1001) + f.seek(211) + self.assertEqual(f.read(), INPUT[211:]) + + def test_seek_backward_across_streams(self): + with LZMAFile(BytesIO(COMPRESSED_XZ * 2)) as f: + f.read(len(INPUT) + 333) + f.seek(737) + self.assertEqual(f.read(), INPUT[737:] + INPUT) + + def test_seek_backward_relative_to_end(self): + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + f.seek(-150, 2) + self.assertEqual(f.read(), INPUT[-150:]) + + def test_seek_past_end(self): + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + f.seek(len(INPUT) + 9001) + self.assertEqual(f.tell(), len(INPUT)) + self.assertEqual(f.read(), b"") + + def test_seek_past_start(self): + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + f.seek(-88) + self.assertEqual(f.tell(), 0) + self.assertEqual(f.read(), INPUT) + + def test_seek_bad_args(self): + f = LZMAFile(BytesIO(COMPRESSED_XZ)) + f.close() + self.assertRaises(ValueError, f.seek, 0) + with LZMAFile(BytesIO(), "w") as f: + self.assertRaises(ValueError, f.seek, 0) + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + self.assertRaises(ValueError, f.seek, 0, 3) + # io.BufferedReader raises TypeError instead of ValueError + self.assertRaises((TypeError, ValueError), f.seek, 9, ()) + self.assertRaises(TypeError, f.seek, None) + self.assertRaises(TypeError, f.seek, b"derp") + + def test_tell(self): + with LZMAFile(BytesIO(COMPRESSED_XZ)) as f: + pos = 0 + while True: + self.assertEqual(f.tell(), pos) + result = f.read(183) + if not result: + break + pos += len(result) + self.assertEqual(f.tell(), len(INPUT)) + with LZMAFile(BytesIO(), "w") as f: + for pos in range(0, len(INPUT), 144): + self.assertEqual(f.tell(), pos) + f.write(INPUT[pos:pos+144]) + self.assertEqual(f.tell(), len(INPUT)) + + def test_tell_bad_args(self): + f = LZMAFile(BytesIO(COMPRESSED_XZ)) + f.close() + self.assertRaises(ValueError, f.tell) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_issue21872(self): + # sometimes decompress data incompletely + + # --------------------- + # when max_length == -1 + # --------------------- + d1 = LZMADecompressor() + entire = d1.decompress(ISSUE_21872_DAT, max_length=-1) + self.assertEqual(len(entire), 13160) + self.assertTrue(d1.eof) + + # --------------------- + # when max_length > 0 + # --------------------- + d2 = LZMADecompressor() + + # When this value of max_length is used, the input and output + # buffers are exhausted at the same time, and lzs's internal + # state still have 11 bytes can be output. + out1 = d2.decompress(ISSUE_21872_DAT, max_length=13149) + self.assertFalse(d2.needs_input) # ensure needs_input mechanism works + self.assertFalse(d2.eof) + + # simulate needs_input mechanism + # output internal state's 11 bytes + out2 = d2.decompress(b'') + self.assertEqual(len(out2), 11) + self.assertTrue(d2.eof) + self.assertEqual(out1 + out2, entire) + + def test_issue44439(self): + q = array.array('Q', [1, 2, 3, 4, 5]) + LENGTH = len(q) * q.itemsize + + with LZMAFile(BytesIO(), 'w') as f: + self.assertEqual(f.write(q), LENGTH) + self.assertEqual(f.tell(), LENGTH) + + +class OpenTestCase(unittest.TestCase): + + def test_binary_modes(self): + with lzma.open(BytesIO(COMPRESSED_XZ), "rb") as f: + self.assertEqual(f.read(), INPUT) + with BytesIO() as bio: + with lzma.open(bio, "wb") as f: + f.write(INPUT) + file_data = lzma.decompress(bio.getvalue()) + self.assertEqual(file_data, INPUT) + with lzma.open(bio, "ab") as f: + f.write(INPUT) + file_data = lzma.decompress(bio.getvalue()) + self.assertEqual(file_data, INPUT * 2) + + def test_text_modes(self): + uncompressed = INPUT.decode("ascii") + uncompressed_raw = uncompressed.replace("\n", os.linesep) + with lzma.open(BytesIO(COMPRESSED_XZ), "rt", encoding="ascii") as f: + self.assertEqual(f.read(), uncompressed) + with BytesIO() as bio: + with lzma.open(bio, "wt", encoding="ascii") as f: + f.write(uncompressed) + file_data = lzma.decompress(bio.getvalue()).decode("ascii") + self.assertEqual(file_data, uncompressed_raw) + with lzma.open(bio, "at", encoding="ascii") as f: + f.write(uncompressed) + file_data = lzma.decompress(bio.getvalue()).decode("ascii") + self.assertEqual(file_data, uncompressed_raw * 2) + + def test_filename(self): + with TempFile(TESTFN): + with lzma.open(TESTFN, "wb") as f: + f.write(INPUT) + with open(TESTFN, "rb") as f: + file_data = lzma.decompress(f.read()) + self.assertEqual(file_data, INPUT) + with lzma.open(TESTFN, "rb") as f: + self.assertEqual(f.read(), INPUT) + with lzma.open(TESTFN, "ab") as f: + f.write(INPUT) + with lzma.open(TESTFN, "rb") as f: + self.assertEqual(f.read(), INPUT * 2) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_with_pathlike_filename(self): + filename = FakePath(TESTFN) + with TempFile(filename): + with lzma.open(filename, "wb") as f: + f.write(INPUT) + self.assertEqual(f.name, TESTFN) + with open(filename, "rb") as f: + file_data = lzma.decompress(f.read()) + self.assertEqual(file_data, INPUT) + with lzma.open(filename, "rb") as f: + self.assertEqual(f.read(), INPUT) + self.assertEqual(f.name, TESTFN) + + def test_bad_params(self): + # Test invalid parameter combinations. + with self.assertRaises(ValueError): + lzma.open(TESTFN, "") + with self.assertRaises(ValueError): + lzma.open(TESTFN, "rbt") + with self.assertRaises(ValueError): + lzma.open(TESTFN, "rb", encoding="utf-8") + with self.assertRaises(ValueError): + lzma.open(TESTFN, "rb", errors="ignore") + with self.assertRaises(ValueError): + lzma.open(TESTFN, "rb", newline="\n") + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_format_and_filters(self): + # Test non-default format and filter chain. + options = {"format": lzma.FORMAT_RAW, "filters": FILTERS_RAW_1} + with lzma.open(BytesIO(COMPRESSED_RAW_1), "rb", **options) as f: + self.assertEqual(f.read(), INPUT) + with BytesIO() as bio: + with lzma.open(bio, "wb", **options) as f: + f.write(INPUT) + file_data = lzma.decompress(bio.getvalue(), **options) + self.assertEqual(file_data, INPUT) + + def test_encoding(self): + # Test non-default encoding. + uncompressed = INPUT.decode("ascii") + uncompressed_raw = uncompressed.replace("\n", os.linesep) + with BytesIO() as bio: + with lzma.open(bio, "wt", encoding="utf-16-le") as f: + f.write(uncompressed) + file_data = lzma.decompress(bio.getvalue()).decode("utf-16-le") + self.assertEqual(file_data, uncompressed_raw) + bio.seek(0) + with lzma.open(bio, "rt", encoding="utf-16-le") as f: + self.assertEqual(f.read(), uncompressed) + + def test_encoding_error_handler(self): + # Test with non-default encoding error handler. + with BytesIO(lzma.compress(b"foo\xffbar")) as bio: + with lzma.open(bio, "rt", encoding="ascii", errors="ignore") as f: + self.assertEqual(f.read(), "foobar") + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_newline(self): + # Test with explicit newline (universal newline mode disabled). + text = INPUT.decode("ascii") + with BytesIO() as bio: + with lzma.open(bio, "wt", encoding="ascii", newline="\n") as f: + f.write(text) + bio.seek(0) + with lzma.open(bio, "rt", encoding="ascii", newline="\r") as f: + self.assertEqual(f.readlines(), [text]) + + def test_x_mode(self): + self.addCleanup(unlink, TESTFN) + for mode in ("x", "xb", "xt"): + unlink(TESTFN) + encoding = "ascii" if "t" in mode else None + with lzma.open(TESTFN, mode, encoding=encoding): + pass + with self.assertRaises(FileExistsError): + with lzma.open(TESTFN, mode): + pass + + +class MiscellaneousTestCase(unittest.TestCase): + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_is_check_supported(self): + # CHECK_NONE and CHECK_CRC32 should always be supported, + # regardless of the options liblzma was compiled with. + self.assertTrue(lzma.is_check_supported(lzma.CHECK_NONE)) + self.assertTrue(lzma.is_check_supported(lzma.CHECK_CRC32)) + + # The .xz format spec cannot store check IDs above this value. + self.assertFalse(lzma.is_check_supported(lzma.CHECK_ID_MAX + 1)) + + # This value should not be a valid check ID. + self.assertFalse(lzma.is_check_supported(lzma.CHECK_UNKNOWN)) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test__encode_filter_properties(self): + with self.assertRaises(TypeError): + lzma._encode_filter_properties(b"not a dict") + with self.assertRaises(ValueError): + lzma._encode_filter_properties({"id": 0x100}) + with self.assertRaises(ValueError): + lzma._encode_filter_properties({"id": lzma.FILTER_LZMA2, "junk": 12}) + with self.assertRaises(lzma.LZMAError): + lzma._encode_filter_properties({"id": lzma.FILTER_DELTA, + "dist": 9001}) + + # Test with parameters used by zipfile module. + props = lzma._encode_filter_properties({ + "id": lzma.FILTER_LZMA1, + "pb": 2, + "lp": 0, + "lc": 3, + "dict_size": 8 << 20, + }) + self.assertEqual(props, b"]\x00\x00\x80\x00") + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test__decode_filter_properties(self): + with self.assertRaises(TypeError): + lzma._decode_filter_properties(lzma.FILTER_X86, {"should be": bytes}) + with self.assertRaises(lzma.LZMAError): + lzma._decode_filter_properties(lzma.FILTER_DELTA, b"too long") + + # Test with parameters used by zipfile module. + filterspec = lzma._decode_filter_properties( + lzma.FILTER_LZMA1, b"]\x00\x00\x80\x00") + self.assertEqual(filterspec["id"], lzma.FILTER_LZMA1) + self.assertEqual(filterspec["pb"], 2) + self.assertEqual(filterspec["lp"], 0) + self.assertEqual(filterspec["lc"], 3) + self.assertEqual(filterspec["dict_size"], 8 << 20) + + # see gh-104282 + filters = [lzma.FILTER_X86, lzma.FILTER_POWERPC, + lzma.FILTER_IA64, lzma.FILTER_ARM, + lzma.FILTER_ARMTHUMB, lzma.FILTER_SPARC] + for f in filters: + filterspec = lzma._decode_filter_properties(f, b"") + self.assertEqual(filterspec, {"id": f}) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_filter_properties_roundtrip(self): + spec1 = lzma._decode_filter_properties( + lzma.FILTER_LZMA1, b"]\x00\x00\x80\x00") + reencoded = lzma._encode_filter_properties(spec1) + spec2 = lzma._decode_filter_properties(lzma.FILTER_LZMA1, reencoded) + self.assertEqual(spec1, spec2) + + +# Test data: + +INPUT = b""" +LAERTES + + O, fear me not. + I stay too long: but here my father comes. + + Enter POLONIUS + + A double blessing is a double grace, + Occasion smiles upon a second leave. + +LORD POLONIUS + + Yet here, Laertes! aboard, aboard, for shame! + The wind sits in the shoulder of your sail, + And you are stay'd for. There; my blessing with thee! + And these few precepts in thy memory + See thou character. Give thy thoughts no tongue, + Nor any unproportioned thought his act. + Be thou familiar, but by no means vulgar. + Those friends thou hast, and their adoption tried, + Grapple them to thy soul with hoops of steel; + But do not dull thy palm with entertainment + Of each new-hatch'd, unfledged comrade. Beware + Of entrance to a quarrel, but being in, + Bear't that the opposed may beware of thee. + Give every man thy ear, but few thy voice; + Take each man's censure, but reserve thy judgment. + Costly thy habit as thy purse can buy, + But not express'd in fancy; rich, not gaudy; + For the apparel oft proclaims the man, + And they in France of the best rank and station + Are of a most select and generous chief in that. + Neither a borrower nor a lender be; + For loan oft loses both itself and friend, + And borrowing dulls the edge of husbandry. + This above all: to thine ownself be true, + And it must follow, as the night the day, + Thou canst not then be false to any man. + Farewell: my blessing season this in thee! + +LAERTES + + Most humbly do I take my leave, my lord. + +LORD POLONIUS + + The time invites you; go; your servants tend. + +LAERTES + + Farewell, Ophelia; and remember well + What I have said to you. + +OPHELIA + + 'Tis in my memory lock'd, + And you yourself shall keep the key of it. + +LAERTES + + Farewell. +""" + +COMPRESSED_BOGUS = b"this is not a valid lzma stream" + +COMPRESSED_XZ = ( + b"\xfd7zXZ\x00\x00\x04\xe6\xd6\xb4F\x02\x00!\x01\x16\x00\x00\x00t/\xe5\xa3" + b"\xe0\x07\x80\x03\xdf]\x00\x05\x14\x07bX\x19\xcd\xddn\x98\x15\xe4\xb4\x9d" + b"o\x1d\xc4\xe5\n\x03\xcc2h\xc7\\\x86\xff\xf8\xe2\xfc\xe7\xd9\xfe6\xb8(" + b"\xa8wd\xc2\"u.n\x1e\xc3\xf2\x8e\x8d\x8f\x02\x17/\xa6=\xf0\xa2\xdf/M\x89" + b"\xbe\xde\xa7\x1cz\x18-]\xd5\xef\x13\x8frZ\x15\x80\x8c\xf8\x8do\xfa\x12" + b"\x9b#z/\xef\xf0\xfaF\x01\x82\xa3M\x8e\xa1t\xca6 BF$\xe5Q\xa4\x98\xee\xde" + b"l\xe8\x7f\xf0\x9d,bn\x0b\x13\xd4\xa8\x81\xe4N\xc8\x86\x153\xf5x2\xa2O" + b"\x13@Q\xa1\x00/\xa5\xd0O\x97\xdco\xae\xf7z\xc4\xcdS\xb6t<\x16\xf2\x9cI#" + b"\x89ud\xc66Y\xd9\xee\xe6\xce\x12]\xe5\xf0\xaa\x96-Pe\xade:\x04\t\x1b\xf7" + b"\xdb7\n\x86\x1fp\xc8J\xba\xf4\xf0V\xa9\xdc\xf0\x02%G\xf9\xdf=?\x15\x1b" + b"\xe1(\xce\x82=\xd6I\xac3\x12\x0cR\xb7\xae\r\xb1i\x03\x95\x01\xbd\xbe\xfa" + b"\x02s\x01P\x9d\x96X\xb12j\xc8L\xa8\x84b\xf6\xc3\xd4c-H\x93oJl\xd0iQ\xe4k" + b"\x84\x0b\xc1\xb7\xbc\xb1\x17\x88\xb1\xca?@\xf6\x07\xea\xe6x\xf1H12P\x0f" + b"\x8a\xc9\xeauw\xe3\xbe\xaai\xa9W\xd0\x80\xcd#cb5\x99\xd8]\xa9d\x0c\xbd" + b"\xa2\xdcWl\xedUG\xbf\x89yF\xf77\x81v\xbd5\x98\xbeh8\x18W\x08\xf0\x1b\x99" + b"5:\x1a?rD\x96\xa1\x04\x0f\xae\xba\x85\xeb\x9d5@\xf5\x83\xd37\x83\x8ac" + b"\x06\xd4\x97i\xcdt\x16S\x82k\xf6K\x01vy\x88\x91\x9b6T\xdae\r\xfd]:k\xbal" + b"\xa9\xbba\xc34\xf9r\xeb}r\xdb\xc7\xdb*\x8f\x03z\xdc8h\xcc\xc9\xd3\xbcl" + b"\xa5-\xcb\xeaK\xa2\xc5\x15\xc0\xe3\xc1\x86Z\xfb\xebL\xe13\xcf\x9c\xe3" + b"\x1d\xc9\xed\xc2\x06\xcc\xce!\x92\xe5\xfe\x9c^\xa59w \x9bP\xa3PK\x08d" + b"\xf9\xe2Z}\xa7\xbf\xed\xeb%$\x0c\x82\xb8/\xb0\x01\xa9&,\xf7qh{Q\x96)\xf2" + b"q\x96\xc3\x80\xb4\x12\xb0\xba\xe6o\xf4!\xb4[\xd4\x8aw\x10\xf7t\x0c\xb3" + b"\xd9\xd5\xc3`^\x81\x11??\\\xa4\x99\x85R\xd4\x8e\x83\xc9\x1eX\xbfa\xf1" + b"\xac\xb0\xea\xea\xd7\xd0\xab\x18\xe2\xf2\xed\xe1\xb7\xc9\x18\xcbS\xe4>" + b"\xc9\x95H\xe8\xcb\t\r%\xeb\xc7$.o\xf1\xf3R\x17\x1db\xbb\xd8U\xa5^\xccS" + b"\x16\x01\x87\xf3/\x93\xd1\xf0v\xc0r\xd7\xcc\xa2Gkz\xca\x80\x0e\xfd\xd0" + b"\x8b\xbb\xd2Ix\xb3\x1ey\xca-0\xe3z^\xd6\xd6\x8f_\xf1\x9dP\x9fi\xa7\xd1" + b"\xe8\x90\x84\xdc\xbf\xcdky\x8e\xdc\x81\x7f\xa3\xb2+\xbf\x04\xef\xd8\\" + b"\xc4\xdf\xe1\xb0\x01\xe9\x93\xe3Y\xf1\x1dY\xe8h\x81\xcf\xf1w\xcc\xb4\xef" + b" \x8b|\x04\xea\x83ej\xbe\x1f\xd4z\x9c`\xd3\x1a\x92A\x06\xe5\x8f\xa9\x13" + b"\t\x9e=\xfa\x1c\xe5_\x9f%v\x1bo\x11ZO\xd8\xf4\t\xddM\x16-\x04\xfc\x18<\"" + b"CM\xddg~b\xf6\xef\x8e\x0c\xd0\xde|\xa0'\x8a\x0c\xd6x\xae!J\xa6F\x88\x15u" + b"\x008\x17\xbc7y\xb3\xd8u\xac_\x85\x8d\xe7\xc1@\x9c\xecqc\xa3#\xad\xf1" + b"\x935\xb5)_\r\xec3]\x0fo]5\xd0my\x07\x9b\xee\x81\xb5\x0f\xcfK+\x00\xc0" + b"\xe4b\x10\xe4\x0c\x1a \x9b\xe0\x97t\xf6\xa1\x9e\x850\xba\x0c\x9a\x8d\xc8" + b"\x8f\x07\xd7\xae\xc8\xf9+i\xdc\xb9k\xb0>f\x19\xb8\r\xa8\xf8\x1f$\xa5{p" + b"\xc6\x880\xce\xdb\xcf\xca_\x86\xac\x88h6\x8bZ%'\xd0\n\xbf\x0f\x9c\"\xba" + b"\xe5\x86\x9f\x0f7X=mNX[\xcc\x19FU\xc9\x860\xbc\x90a+* \xae_$\x03\x1e\xd3" + b"\xcd_\xa0\x9c\xde\xaf46q\xa5\xc9\x92\xd7\xca\xe3`\x9d\x85}\xb4\xff\xb3" + b"\x83\xfb\xb6\xca\xae`\x0bw\x7f\xfc\xd8\xacVe\x19\xc8\x17\x0bZ\xad\x88" + b"\xeb#\x97\x03\x13\xb1d\x0f{\x0c\x04w\x07\r\x97\xbd\xd6\xc1\xc3B:\x95\x08" + b"^\x10V\xaeaH\x02\xd9\xe3\n\\\x01X\xf6\x9c\x8a\x06u#%\xbe*\xa1\x18v\x85" + b"\xec!\t4\x00\x00\x00\x00Vj?uLU\xf3\xa6\x00\x01\xfb\x07\x81\x0f\x00\x00tw" + b"\x99P\xb1\xc4g\xfb\x02\x00\x00\x00\x00\x04YZ" +) + +COMPRESSED_ALONE = ( + b"]\x00\x00\x80\x00\xff\xff\xff\xff\xff\xff\xff\xff\x00\x05\x14\x07bX\x19" + b"\xcd\xddn\x98\x15\xe4\xb4\x9do\x1d\xc4\xe5\n\x03\xcc2h\xc7\\\x86\xff\xf8" + b"\xe2\xfc\xe7\xd9\xfe6\xb8(\xa8wd\xc2\"u.n\x1e\xc3\xf2\x8e\x8d\x8f\x02" + b"\x17/\xa6=\xf0\xa2\xdf/M\x89\xbe\xde\xa7\x1cz\x18-]\xd5\xef\x13\x8frZ" + b"\x15\x80\x8c\xf8\x8do\xfa\x12\x9b#z/\xef\xf0\xfaF\x01\x82\xa3M\x8e\xa1t" + b"\xca6 BF$\xe5Q\xa4\x98\xee\xdel\xe8\x7f\xf0\x9d,bn\x0b\x13\xd4\xa8\x81" + b"\xe4N\xc8\x86\x153\xf5x2\xa2O\x13@Q\xa1\x00/\xa5\xd0O\x97\xdco\xae\xf7z" + b"\xc4\xcdS\xb6t<\x16\xf2\x9cI#\x89ud\xc66Y\xd9\xee\xe6\xce\x12]\xe5\xf0" + b"\xaa\x96-Pe\xade:\x04\t\x1b\xf7\xdb7\n\x86\x1fp\xc8J\xba\xf4\xf0V\xa9" + b"\xdc\xf0\x02%G\xf9\xdf=?\x15\x1b\xe1(\xce\x82=\xd6I\xac3\x12\x0cR\xb7" + b"\xae\r\xb1i\x03\x95\x01\xbd\xbe\xfa\x02s\x01P\x9d\x96X\xb12j\xc8L\xa8" + b"\x84b\xf8\x1epl\xeajr\xd1=\t\x03\xdd\x13\x1b3!E\xf9vV\xdaF\xf3\xd7\xb4" + b"\x0c\xa9P~\xec\xdeE\xe37\xf6\x1d\xc6\xbb\xddc%\xb6\x0fI\x07\xf0;\xaf\xe7" + b"\xa0\x8b\xa7Z\x99(\xe9\xe2\xf0o\x18>`\xe1\xaa\xa8\xd9\xa1\xb2}\xe7\x8d" + b"\x834T\xb6\xef\xc1\xde\xe3\x98\xbcD\x03MA@\xd8\xed\xdc\xc8\x93\x03\x1a" + b"\x93\x0b\x7f\x94\x12\x0b\x02Sa\x18\xc9\xc5\x9bTJE}\xf6\xc8g\x17#ZV\x01" + b"\xc9\x9dc\x83\x0e>0\x16\x90S\xb8/\x03y_\x18\xfa(\xd7\x0br\xa2\xb0\xba?" + b"\x8c\xe6\x83@\x84\xdf\x02:\xc5z\x9e\xa6\x84\xc9\xf5BeyX\x83\x1a\xf1 :\t" + b"\xf7\x19\xfexD\\&G\xf3\x85Y\xa2J\xf9\x0bv{\x89\xf6\xe7)A\xaf\x04o\x00" + b"\x075\xd3\xe0\x7f\x97\x98F\x0f?v\x93\xedVtTf\xb5\x97\x83\xed\x19\xd7\x1a" + b"'k\xd7\xd9\xc5\\Y\xd1\xdc\x07\x15|w\xbc\xacd\x87\x08d\xec\xa7\xf6\x82" + b"\xfc\xb3\x93\xeb\xb9 \x8d\xbc ,\xb3X\xb0\xd2s\xd7\xd1\xffv\x05\xdf}\xa2" + b"\x96\xfb%\n\xdf\xa2\x7f\x08.\xa16\n\xe0\x19\x93\x7fh\n\x1c\x8c\x0f \x11" + b"\xc6Bl\x95\x19U}\xe4s\xb5\x10H\xea\x86pB\xe88\x95\xbe\x8cZ\xdb\xe4\x94A" + b"\x92\xb9;z\xaa\xa7{\x1c5!\xc0\xaf\xc1A\xf9\xda\xf0$\xb0\x02qg\xc8\xc7/|" + b"\xafr\x99^\x91\x88\xbf\x03\xd9=\xd7n\xda6{>8\n\xc7:\xa9'\xba.\x0b\xe2" + b"\xb5\x1d\x0e\n\x9a\x8e\x06\x8f:\xdd\x82'[\xc3\"wD$\xa7w\xecq\x8c,1\x93" + b"\xd0,\xae2w\x93\x12$Jd\x19mg\x02\x93\x9cA\x95\x9d&\xca8i\x9c\xb0;\xe7NQ" + b"\x1frh\x8beL;\xb0m\xee\x07Q\x9b\xc6\xd8\x03\xb5\xdeN\xd4\xfe\x98\xd0\xdc" + b"\x1a[\x04\xde\x1a\xf6\x91j\xf8EOli\x8eB^\x1d\x82\x07\xb2\xb5R]\xb7\xd7" + b"\xe9\xa6\xc3.\xfb\xf0-\xb4e\x9b\xde\x03\x88\xc6\xc1iN\x0e\x84wbQ\xdf~" + b"\xe9\xa4\x884\x96kM\xbc)T\xf3\x89\x97\x0f\x143\xe7)\xa0\xb3B\x00\xa8\xaf" + b"\x82^\xcb\xc7..\xdb\xc7\t\x9dH\xee5\xe9#\xe6NV\x94\xcb$Kk\xe3\x7f\r\xe3t" + b"\x12\xcf'\xefR\x8b\xf42\xcf-LH\xac\xe5\x1f0~?SO\xeb\xc1E\x1a\x1c]\xf2" + b"\xc4<\x11\x02\x10Z0a*?\xe4r\xff\xfb\xff\xf6\x14nG\xead^\xd6\xef8\xb6uEI" + b"\x99\nV\xe2\xb3\x95\x8e\x83\xf6i!\xb5&1F\xb1DP\xf4 SO3D!w\x99_G\x7f+\x90" + b".\xab\xbb]\x91>\xc9#h;\x0f5J\x91K\xf4^-[\x9e\x8a\\\x94\xca\xaf\xf6\x19" + b"\xd4\xa1\x9b\xc4\xb8p\xa1\xae\x15\xe9r\x84\xe0\xcar.l []\x8b\xaf+0\xf2g" + b"\x01aKY\xdfI\xcf,\n\xe8\xf0\xe7V\x80_#\xb2\xf2\xa9\x06\x8c>w\xe2W,\xf4" + b"\x8c\r\xf963\xf5J\xcc2\x05=kT\xeaUti\xe5_\xce\x1b\xfa\x8dl\x02h\xef\xa8" + b"\xfbf\x7f\xff\xf0\x19\xeax" +) + +FILTERS_RAW_1 = [{"id": lzma.FILTER_LZMA2, "preset": 3}] +COMPRESSED_RAW_1 = ( + b"\xe0\x07\x80\x03\xfd]\x00\x05\x14\x07bX\x19\xcd\xddn\x96cyq\xa1\xdd\xee" + b"\xf8\xfam\xe3'\x88\xd3\xff\xe4\x9e \xceQ\x91\xa4\x14I\xf6\xb9\x9dVL8\x15" + b"_\x0e\x12\xc3\xeb\xbc\xa5\xcd\nW\x1d$=R;\x1d\xf8k8\t\xb1{\xd4\xc5+\x9d" + b"\x87c\xe5\xef\x98\xb4\xd7S3\xcd\xcc\xd2\xed\xa4\x0em\xe5\xf4\xdd\xd0b" + b"\xbe4*\xaa\x0b\xc5\x08\x10\x85+\x81.\x17\xaf9\xc9b\xeaZrA\xe20\x7fs\"r" + b"\xdaG\x81\xde\x90cu\xa5\xdb\xa9.A\x08l\xb0<\xf6\x03\xddOi\xd0\xc5\xb4" + b"\xec\xecg4t6\"\xa6\xb8o\xb5?\x18^}\xb6}\x03[:\xeb\x03\xa9\n[\x89l\x19g" + b"\x16\xc82\xed\x0b\xfb\x86n\xa2\x857@\x93\xcd6T\xc3u\xb0\t\xf9\x1b\x918" + b"\xfc[\x1b\x1e4\xb3\x14\x06PCV\xa8\"\xf5\x81x~\xe9\xb5N\x9cK\x9f\xc6\xc3%" + b"\xc8k:{6\xe7\xf7\xbd\x05\x02\xb4\xc4\xc3\xd3\xfd\xc3\xa8\\\xfc@\xb1F_" + b"\xc8\x90\xd9sU\x98\xad8\x05\x07\xde7J\x8bM\xd0\xb3;X\xec\x87\xef\xae\xb3" + b"eO,\xb1z,d\x11y\xeejlB\x02\x1d\xf28\x1f#\x896\xce\x0b\xf0\xf5\xa9PK\x0f" + b"\xb3\x13P\xd8\x88\xd2\xa1\x08\x04C?\xdb\x94_\x9a\"\xe9\xe3e\x1d\xde\x9b" + b"\xa1\xe8>H\x98\x10;\xc5\x03#\xb5\x9d4\x01\xe7\xc5\xba%v\xa49\x97A\xe0\"" + b"\x8c\xc22\xe3i\xc1\x9d\xab3\xdf\xbe\xfdDm7\x1b\x9d\xab\xb5\x15o:J\x92" + b"\xdb\x816\x17\xc2O\x99\x1b\x0e\x8d\xf3\tQ\xed\x8e\x95S/\x16M\xb2S\x04" + b"\x0f\xc3J\xc6\xc7\xe4\xcb\xc5\xf4\xe7d\x14\xe4=^B\xfb\xd3E\xd3\x1e\xcd" + b"\x91\xa5\xd0G\x8f.\xf6\xf9\x0bb&\xd9\x9f\xc2\xfdj\xa2\x9e\xc4\\\x0e\x1dC" + b"v\xe8\xd2\x8a?^H\xec\xae\xeb>\xfe\xb8\xab\xd4IqY\x8c\xd4K7\x11\xf4D\xd0W" + b"\xa5\xbe\xeaO\xbf\xd0\x04\xfdl\x10\xae5\xd4U\x19\x06\xf9{\xaa\xe0\x81" + b"\x0f\xcf\xa3k{\x95\xbd\x19\xa2\xf8\xe4\xa3\x08O*\xf1\xf1B-\xc7(\x0eR\xfd" + b"@E\x9f\xd3\x1e:\xfdV\xb7\x04Y\x94\xeb]\x83\xc4\xa5\xd7\xc0gX\x98\xcf\x0f" + b"\xcd3\x00]n\x17\xec\xbd\xa3Y\x86\xc5\xf3u\xf6*\xbdT\xedA$A\xd9A\xe7\x98" + b"\xef\x14\x02\x9a\xfdiw\xec\xa0\x87\x11\xd9%\xc5\xeb\x8a=\xae\xc0\xc4\xc6" + b"D\x80\x8f\xa8\xd1\xbbq\xb2\xc0\xa0\xf5Cqp\xeeL\xe3\xe5\xdc \x84\"\xe9" + b"\x80t\x83\x05\xba\xf1\xc5~\x93\xc9\xf0\x01c\xceix\x9d\xed\xc5)l\x16)\xd1" + b"\x03@l\x04\x7f\x87\xa5yn\x1b\x01D\xaa:\xd2\x96\xb4\xb3?\xb0\xf9\xce\x07" + b"\xeb\x81\x00\xe4\xc3\xf5%_\xae\xd4\xf9\xeb\xe2\rh\xb2#\xd67Q\x16D\x82hn" + b"\xd1\xa3_?q\xf0\xe2\xac\xf317\x9e\xd0_\x83|\xf1\xca\xb7\x95S\xabW\x12" + b"\xff\xddt\xf69L\x01\xf2|\xdaW\xda\xees\x98L\x18\xb8_\xe8$\x82\xea\xd6" + b"\xd1F\xd4\x0b\xcdk\x01vf\x88h\xc3\xae\xb91\xc7Q\x9f\xa5G\xd9\xcc\x1f\xe3" + b"5\xb1\xdcy\x7fI\x8bcw\x8e\x10rIp\x02:\x19p_\xc8v\xcea\"\xc1\xd9\x91\x03" + b"\xbfe\xbe\xa6\xb3\xa8\x14\x18\xc3\xabH*m}\xc2\xc1\x9a}>l%\xce\x84\x99" + b"\xb3d\xaf\xd3\x82\x15\xdf\xc1\xfc5fOg\x9b\xfc\x8e^&\t@\xce\x9f\x06J\xb8" + b"\xb5\x86\x1d\xda{\x9f\xae\xb0\xff\x02\x81r\x92z\x8cM\xb7ho\xc9^\x9c\xb6" + b"\x9c\xae\xd1\xc9\xf4\xdfU7\xd6\\!\xea\x0b\x94k\xb9Ud~\x98\xe7\x86\x8az" + b"\x10;\xe3\x1d\xe5PG\xf8\xa4\x12\x05w\x98^\xc4\xb1\xbb\xfb\xcf\xe0\x7f" + b"\x033Sf\x0c \xb1\xf6@\x94\xe5\xa3\xb2\xa7\x10\x9a\xc0\x14\xc3s\xb5xRD" + b"\xf4`W\xd9\xe5\xd3\xcf\x91\rTZ-X\xbe\xbf\xb5\xe2\xee|\x1a\xbf\xfb\x08" + b"\x91\xe1\xfc\x9a\x18\xa3\x8b\xd6^\x89\xf5[\xef\x87\xd1\x06\x1c7\xd6\xa2" + b"\t\tQ5/@S\xc05\xd2VhAK\x03VC\r\x9b\x93\xd6M\xf1xO\xaaO\xed\xb9<\x0c\xdae" + b"*\xd0\x07Hk6\x9fG+\xa1)\xcd\x9cl\x87\xdb\xe1\xe7\xefK}\x875\xab\xa0\x19u" + b"\xf6*F\xb32\x00\x00\x00" +) + +FILTERS_RAW_2 = [{"id": lzma.FILTER_DELTA, "dist": 2}, + {"id": lzma.FILTER_LZMA2, + "preset": lzma.PRESET_DEFAULT | lzma.PRESET_EXTREME}] +COMPRESSED_RAW_2 = ( + b"\xe0\x07\x80\x05\x91]\x00\x05\x14\x06-\xd4\xa8d?\xef\xbe\xafH\xee\x042" + b"\xcb.\xb5g\x8f\xfb\x14\xab\xa5\x9f\x025z\xa4\xdd\xd8\t[}W\xf8\x0c\x1dmH" + b"\xfa\x05\xfcg\xba\xe5\x01Q\x0b\x83R\xb6A\x885\xc0\xba\xee\n\x1cv~\xde:o" + b"\x06:J\xa7\x11Cc\xea\xf7\xe5*o\xf7\x83\\l\xbdE\x19\x1f\r\xa8\x10\xb42" + b"\x0caU{\xd7\xb8w\xdc\xbe\x1b\xfc8\xb4\xcc\xd38\\\xf6\x13\xf6\xe7\x98\xfa" + b"\xc7[\x17_9\x86%\xa8\xf8\xaa\xb8\x8dfs#\x1e=\xed<\x92\x10\\t\xff\x86\xfb" + b"=\x9e7\x18\x1dft\\\xb5\x01\x95Q\xc5\x19\xb38\xe0\xd4\xaa\x07\xc3\x7f\xd8" + b"\xa2\x00>-\xd3\x8e\xa1#\xfa\x83ArAm\xdbJ~\x93\xa3B\x82\xe0\xc7\xcc(\x08`" + b"WK\xad\x1b\x94kaj\x04 \xde\xfc\xe1\xed\xb0\x82\x91\xefS\x84%\x86\xfbi" + b"\x99X\xf1B\xe7\x90;E\xfde\x98\xda\xca\xd6T\xb4bg\xa4\n\x9aj\xd1\x83\x9e]" + b"\"\x7fM\xb5\x0fr\xd2\\\xa5j~P\x10GH\xbfN*Z\x10.\x81\tpE\x8a\x08\xbe1\xbd" + b"\xcd\xa9\xe1\x8d\x1f\x04\xf9\x0eH\xb9\xae\xd6\xc3\xc1\xa5\xa9\x95P\xdc~" + b"\xff\x01\x930\xa9\x04\xf6\x03\xfe\xb5JK\xc3]\xdd9\xb1\xd3\xd7F\xf5\xd1" + b"\x1e\xa0\x1c_\xed[\x0c\xae\xd4\x8b\x946\xeb\xbf\xbb\xe3$kS{\xb5\x80,f:Sj" + b"\x0f\x08z\x1c\xf5\xe8\xe6\xae\x98\xb0Q~r\x0f\xb0\x05?\xb6\x90\x19\x02&" + b"\xcb\x80\t\xc4\xea\x9c|x\xce\x10\x9c\xc5|\xcbdhh+\x0c'\xc5\x81\xc33\xb5" + b"\x14q\xd6\xc5\xe3`Z#\xdc\x8a\xab\xdd\xea\x08\xc2I\xe7\x02l{\xec\x196\x06" + b"\x91\x8d\xdc\xd5\xb3x\xe1hz%\xd1\xf8\xa5\xdd\x98!\x8c\x1c\xc1\x17RUa\xbb" + b"\x95\x0f\xe4X\xea1\x0c\xf1=R\xbe\xc60\xe3\xa4\x9a\x90bd\x97$]B\x01\xdd" + b"\x1f\xe3h2c\x1e\xa0L`4\xc6x\xa3Z\x8a\r\x14]T^\xd8\x89\x1b\x92\r;\xedY" + b"\x0c\xef\x8d9z\xf3o\xb6)f\xa9]$n\rp\x93\xd0\x10\xa4\x08\xb8\xb2\x8b\xb6" + b"\x8f\x80\xae;\xdcQ\xf1\xfa\x9a\x06\x8e\xa5\x0e\x8cK\x9c @\xaa:UcX\n!\xc6" + b"\x02\x12\xcb\x1b\"=\x16.\x1f\x176\xf2g=\xe1Wn\xe9\xe1\xd4\xf1O\xad\x15" + b"\x86\xe9\xa3T\xaf\xa9\xd7D\xb5\xd1W3pnt\x11\xc7VOj\xb7M\xc4i\xa1\xf1$3" + b"\xbb\xdc\x8af\xb0\xc5Y\r\xd1\xfb\xf2\xe7K\xe6\xc5hwO\xfe\x8c2^&\x07\xd5" + b"\x1fV\x19\xfd\r\x14\xd2i=yZ\xe6o\xaf\xc6\xb6\x92\x9d\xc4\r\xb3\xafw\xac%" + b"\xcfc\x1a\xf1`]\xf2\x1a\x9e\x808\xedm\xedQ\xb2\xfe\xe4h`[q\xae\xe0\x0f" + b"\xba0g\xb6\"N\xc3\xfb\xcfR\x11\xc5\x18)(\xc40\\\xa3\x02\xd9G!\xce\x1b" + b"\xc1\x96x\xb5\xc8z\x1f\x01\xb4\xaf\xde\xc2\xcd\x07\xe7H\xb3y\xa8M\n\\A\t" + b"ar\xddM\x8b\x9a\xea\x84\x9b!\xf1\x8d\xb1\xf1~\x1e\r\xa5H\xba\xf1\x84o" + b"\xda\x87\x01h\xe9\xa2\xbe\xbeqN\x9d\x84\x0b!WG\xda\xa1\xa5A\xb7\xc7`j" + b"\x15\xf2\xe9\xdd?\x015B\xd2~E\x06\x11\xe0\x91!\x05^\x80\xdd\xa8y\x15}" + b"\xa1)\xb1)\x81\x18\xf4\xf4\xf8\xc0\xefD\xe3\xdb2f\x1e\x12\xabu\xc9\x97" + b"\xcd\x1e\xa7\x0c\x02x4_6\x03\xc4$t\xf39\x94\x1d=\xcb\xbfv\\\xf5\xa3\x1d" + b"\x9d8jk\x95\x13)ff\xf9n\xc4\xa9\xe3\x01\xb8\xda\xfb\xab\xdfM\x99\xfb\x05" + b"\xe0\xe9\xb0I\xf4E\xab\xe2\x15\xa3\x035\xe7\xdeT\xee\x82p\xb4\x88\xd3" + b"\x893\x9c/\xc0\xd6\x8fou;\xf6\x95PR\xa9\xb2\xc1\xefFj\xe2\xa7$\xf7h\xf1" + b"\xdfK(\xc9c\xba7\xe8\xe3)\xdd\xb2,\x83\xfb\x84\x18.y\x18Qi\x88\xf8`h-" + b"\xef\xd5\xed\x8c\t\xd8\xc3^\x0f\x00\xb7\xd0[!\xafM\x9b\xd7.\x07\xd8\xfb" + b"\xd9\xe2-S+\xaa8,\xa0\x03\x1b \xea\xa8\x00\xc3\xab~\xd0$e\xa5\x7f\xf7" + b"\x95P]\x12\x19i\xd9\x7fo\x0c\xd8g^\rE\xa5\x80\x18\xc5\x01\x80\xaek`\xff~" + b"\xb6y\xe7+\xe5\x11^D\xa7\x85\x18\"!\xd6\xd2\xa7\xf4\x1eT\xdb\x02\xe15" + b"\x02Y\xbc\x174Z\xe7\x9cH\x1c\xbf\x0f\xc6\xe9f]\xcf\x8cx\xbc\xe5\x15\x94" + b"\xfc3\xbc\xa7TUH\xf1\x84\x1b\xf7\xa9y\xc07\x84\xf8X\xd8\xef\xfc \x1c\xd8" + b"( /\xf2\xb7\xec\xc1\\\x8c\xf6\x95\xa1\x03J\x83vP8\xe1\xe3\xbb~\xc24kA" + b"\x98y\xa1\xf2P\xe9\x9d\xc9J\xf8N\x99\xb4\xceaO\xde\x16\x1e\xc2\x19\xa7" + b"\x03\xd2\xe0\x8f:\x15\xf3\x84\x9e\xee\xe6e\xb8\x02q\xc7AC\x1emw\xfd\t" + b"\x9a\x1eu\xc1\xa9\xcaCwUP\x00\xa5\xf78L4w!\x91L2 \x87\xd0\xf2\x06\x81j" + b"\x80;\x03V\x06\x87\x92\xcb\x90lv@E\x8d\x8d\xa5\xa6\xe7Z[\xdf\xd6E\x03`>" + b"\x8f\xde\xa1bZ\x84\xd0\xa9`\x05\x0e{\x80;\xe3\xbef\x8d\x1d\xebk1.\xe3" + b"\xe9N\x15\xf7\xd4(\xfa\xbb\x15\xbdu\xf7\x7f\x86\xae!\x03L\x1d\xb5\xc1" + b"\xb9\x11\xdb\xd0\x93\xe4\x02\xe1\xd2\xcbBjc_\xe8}d\xdb\xc3\xa0Y\xbe\xc9/" + b"\x95\x01\xa3,\xe6bl@\x01\xdbp\xc2\xce\x14\x168\xc2q\xe3uH\x89X\xa4\xa9" + b"\x19\x1d\xc1}\x7fOX\x19\x9f\xdd\xbe\x85\x83\xff\x96\x1ee\x82O`CF=K\xeb$I" + b"\x17_\xefX\x8bJ'v\xde\x1f+\xd9.v\xf8Tv\x17\xf2\x9f5\x19\xe1\xb9\x91\xa8S" + b"\x86\xbd\x1a\"(\xa5x\x8dC\x03X\x81\x91\xa8\x11\xc4pS\x13\xbc\xf2'J\xae!" + b"\xef\xef\x84G\t\x8d\xc4\x10\x132\x00oS\x9e\xe0\xe4d\x8f\xb8y\xac\xa6\x9f" + b",\xb8f\x87\r\xdf\x9eE\x0f\xe1\xd0\\L\x00\xb2\xe1h\x84\xef}\x98\xa8\x11" + b"\xccW#\\\x83\x7fo\xbbz\x8f\x00" +) + +FILTERS_RAW_3 = [{"id": lzma.FILTER_IA64, "start_offset": 0x100}, + {"id": lzma.FILTER_LZMA2}] +COMPRESSED_RAW_3 = ( + b"\xe0\x07\x80\x03\xdf]\x00\x05\x14\x07bX\x19\xcd\xddn\x98\x15\xe4\xb4\x9d" + b"o\x1d\xc4\xe5\n\x03\xcc2h\xc7\\\x86\xff\xf8\xe2\xfc\xe7\xd9\xfe6\xb8(" + b"\xa8wd\xc2\"u.n\x1e\xc3\xf2\x8e\x8d\x8f\x02\x17/\xa6=\xf0\xa2\xdf/M\x89" + b"\xbe\xde\xa7\x1cz\x18-]\xd5\xef\x13\x8frZ\x15\x80\x8c\xf8\x8do\xfa\x12" + b"\x9b#z/\xef\xf0\xfaF\x01\x82\xa3M\x8e\xa1t\xca6 BF$\xe5Q\xa4\x98\xee\xde" + b"l\xe8\x7f\xf0\x9d,bn\x0b\x13\xd4\xa8\x81\xe4N\xc8\x86\x153\xf5x2\xa2O" + b"\x13@Q\xa1\x00/\xa5\xd0O\x97\xdco\xae\xf7z\xc4\xcdS\xb6t<\x16\xf2\x9cI#" + b"\x89ud\xc66Y\xd9\xee\xe6\xce\x12]\xe5\xf0\xaa\x96-Pe\xade:\x04\t\x1b\xf7" + b"\xdb7\n\x86\x1fp\xc8J\xba\xf4\xf0V\xa9\xdc\xf0\x02%G\xf9\xdf=?\x15\x1b" + b"\xe1(\xce\x82=\xd6I\xac3\x12\x0cR\xb7\xae\r\xb1i\x03\x95\x01\xbd\xbe\xfa" + b"\x02s\x01P\x9d\x96X\xb12j\xc8L\xa8\x84b\xf6\xc3\xd4c-H\x93oJl\xd0iQ\xe4k" + b"\x84\x0b\xc1\xb7\xbc\xb1\x17\x88\xb1\xca?@\xf6\x07\xea\xe6x\xf1H12P\x0f" + b"\x8a\xc9\xeauw\xe3\xbe\xaai\xa9W\xd0\x80\xcd#cb5\x99\xd8]\xa9d\x0c\xbd" + b"\xa2\xdcWl\xedUG\xbf\x89yF\xf77\x81v\xbd5\x98\xbeh8\x18W\x08\xf0\x1b\x99" + b"5:\x1a?rD\x96\xa1\x04\x0f\xae\xba\x85\xeb\x9d5@\xf5\x83\xd37\x83\x8ac" + b"\x06\xd4\x97i\xcdt\x16S\x82k\xf6K\x01vy\x88\x91\x9b6T\xdae\r\xfd]:k\xbal" + b"\xa9\xbba\xc34\xf9r\xeb}r\xdb\xc7\xdb*\x8f\x03z\xdc8h\xcc\xc9\xd3\xbcl" + b"\xa5-\xcb\xeaK\xa2\xc5\x15\xc0\xe3\xc1\x86Z\xfb\xebL\xe13\xcf\x9c\xe3" + b"\x1d\xc9\xed\xc2\x06\xcc\xce!\x92\xe5\xfe\x9c^\xa59w \x9bP\xa3PK\x08d" + b"\xf9\xe2Z}\xa7\xbf\xed\xeb%$\x0c\x82\xb8/\xb0\x01\xa9&,\xf7qh{Q\x96)\xf2" + b"q\x96\xc3\x80\xb4\x12\xb0\xba\xe6o\xf4!\xb4[\xd4\x8aw\x10\xf7t\x0c\xb3" + b"\xd9\xd5\xc3`^\x81\x11??\\\xa4\x99\x85R\xd4\x8e\x83\xc9\x1eX\xbfa\xf1" + b"\xac\xb0\xea\xea\xd7\xd0\xab\x18\xe2\xf2\xed\xe1\xb7\xc9\x18\xcbS\xe4>" + b"\xc9\x95H\xe8\xcb\t\r%\xeb\xc7$.o\xf1\xf3R\x17\x1db\xbb\xd8U\xa5^\xccS" + b"\x16\x01\x87\xf3/\x93\xd1\xf0v\xc0r\xd7\xcc\xa2Gkz\xca\x80\x0e\xfd\xd0" + b"\x8b\xbb\xd2Ix\xb3\x1ey\xca-0\xe3z^\xd6\xd6\x8f_\xf1\x9dP\x9fi\xa7\xd1" + b"\xe8\x90\x84\xdc\xbf\xcdky\x8e\xdc\x81\x7f\xa3\xb2+\xbf\x04\xef\xd8\\" + b"\xc4\xdf\xe1\xb0\x01\xe9\x93\xe3Y\xf1\x1dY\xe8h\x81\xcf\xf1w\xcc\xb4\xef" + b" \x8b|\x04\xea\x83ej\xbe\x1f\xd4z\x9c`\xd3\x1a\x92A\x06\xe5\x8f\xa9\x13" + b"\t\x9e=\xfa\x1c\xe5_\x9f%v\x1bo\x11ZO\xd8\xf4\t\xddM\x16-\x04\xfc\x18<\"" + b"CM\xddg~b\xf6\xef\x8e\x0c\xd0\xde|\xa0'\x8a\x0c\xd6x\xae!J\xa6F\x88\x15u" + b"\x008\x17\xbc7y\xb3\xd8u\xac_\x85\x8d\xe7\xc1@\x9c\xecqc\xa3#\xad\xf1" + b"\x935\xb5)_\r\xec3]\x0fo]5\xd0my\x07\x9b\xee\x81\xb5\x0f\xcfK+\x00\xc0" + b"\xe4b\x10\xe4\x0c\x1a \x9b\xe0\x97t\xf6\xa1\x9e\x850\xba\x0c\x9a\x8d\xc8" + b"\x8f\x07\xd7\xae\xc8\xf9+i\xdc\xb9k\xb0>f\x19\xb8\r\xa8\xf8\x1f$\xa5{p" + b"\xc6\x880\xce\xdb\xcf\xca_\x86\xac\x88h6\x8bZ%'\xd0\n\xbf\x0f\x9c\"\xba" + b"\xe5\x86\x9f\x0f7X=mNX[\xcc\x19FU\xc9\x860\xbc\x90a+* \xae_$\x03\x1e\xd3" + b"\xcd_\xa0\x9c\xde\xaf46q\xa5\xc9\x92\xd7\xca\xe3`\x9d\x85}\xb4\xff\xb3" + b"\x83\xfb\xb6\xca\xae`\x0bw\x7f\xfc\xd8\xacVe\x19\xc8\x17\x0bZ\xad\x88" + b"\xeb#\x97\x03\x13\xb1d\x0f{\x0c\x04w\x07\r\x97\xbd\xd6\xc1\xc3B:\x95\x08" + b"^\x10V\xaeaH\x02\xd9\xe3\n\\\x01X\xf6\x9c\x8a\x06u#%\xbe*\xa1\x18v\x85" + b"\xec!\t4\x00\x00\x00" +) + +FILTERS_RAW_4 = [{"id": lzma.FILTER_DELTA, "dist": 4}, + {"id": lzma.FILTER_X86, "start_offset": 0x40}, + {"id": lzma.FILTER_LZMA2, "preset": 4, "lc": 2}] +COMPRESSED_RAW_4 = ( + b"\xe0\x07\x80\x06\x0e\\\x00\x05\x14\x07bW\xaah\xdd\x10\xdc'\xd6\x90,\xc6v" + b"Jq \x14l\xb7\x83xB\x0b\x97f=&fx\xba\n>Tn\xbf\x8f\xfb\x1dF\xca\xc3v_\xca?" + b"\xfbV<\x92#\xd4w\xa6\x8a\xeb\xf6\x03\xc0\x01\x94\xd8\x9e\x13\x12\x98\xd1" + b"*\xfa]c\xe8\x1e~\xaf\xb5]Eg\xfb\x9e\x01\"8\xb2\x90\x06=~\xe9\x91W\xcd" + b"\xecD\x12\xc7\xfa\xe1\x91\x06\xc7\x99\xb9\xe3\x901\x87\x19u\x0f\x869\xff" + b"\xc1\xb0hw|\xb0\xdcl\xcck\xb16o7\x85\xee{Y_b\xbf\xbc$\xf3=\x8d\x8bw\xe5Z" + b"\x08@\xc4kmE\xad\xfb\xf6*\xd8\xad\xa1\xfb\xc5{\xdej,)\x1emB\x1f<\xaeca" + b"\x80(\xee\x07 \xdf\xe9\xf8\xeb\x0e-\x97\x86\x90c\xf9\xea'B\xf7`\xd7\xb0" + b"\x92\xbd\xa0\x82]\xbd\x0e\x0eB\x19\xdc\x96\xc6\x19\xd86D\xf0\xd5\x831" + b"\x03\xb7\x1c\xf7&5\x1a\x8f PZ&j\xf8\x98\x1bo\xcc\x86\x9bS\xd3\xa5\xcdu" + b"\xf9$\xcc\x97o\xe5V~\xfb\x97\xb5\x0b\x17\x9c\xfdxW\x10\xfep4\x80\xdaHDY" + b"\xfa)\xfet\xb5\"\xd4\xd3F\x81\xf4\x13\x1f\xec\xdf\xa5\x13\xfc\"\x91x\xb7" + b"\x99\xce\xc8\x92\n\xeb[\x10l*Y\xd8\xb1@\x06\xc8o\x8d7r\xebu\xfd5\x0e\x7f" + b"\xf1$U{\t}\x1fQ\xcfxN\x9d\x9fXX\xe9`\x83\xc1\x06\xf4\x87v-f\x11\xdb/\\" + b"\x06\xff\xd7)B\xf3g\x06\x88#2\x1eB244\x7f4q\t\xc893?mPX\x95\xa6a\xfb)d" + b"\x9b\xfc\x98\x9aj\x04\xae\x9b\x9d\x19w\xba\xf92\xfaA\x11\\\x17\x97C3\xa4" + b"\xbc!\x88\xcdo[\xec:\x030\x91.\x85\xe0@\\4\x16\x12\x9d\xcaJv\x97\xb04" + b"\xack\xcbkf\xa3ss\xfc\x16^\x8ce\x85a\xa5=&\xecr\xb3p\xd1E\xd5\x80y\xc7" + b"\xda\xf6\xfek\xbcT\xbfH\xee\x15o\xc5\x8c\x830\xec\x1d\x01\xae\x0c-e\\" + b"\x91\x90\x94\xb2\xf8\x88\x91\xe8\x0b\xae\xa7>\x98\xf6\x9ck\xd2\xc6\x08" + b"\xe6\xab\t\x98\xf2!\xa0\x8c^\xacqA\x99<\x1cEG\x97\xc8\xf1\xb6\xb9\x82" + b"\x8d\xf7\x08s\x98a\xff\xe3\xcc\x92\x0e\xd2\xb6U\xd7\xd9\x86\x7fa\xe5\x1c" + b"\x8dTG@\t\x1e\x0e7*\xfc\xde\xbc]6N\xf7\xf1\x84\x9e\x9f\xcf\xe9\x1e\xb5'" + b"\xf4<\xdf\x99sq\xd0\x9d\xbd\x99\x0b\xb4%p4\xbf{\xbb\x8a\xd2\x0b\xbc=M" + b"\x94H:\xf5\xa8\xd6\xa4\xc90\xc2D\xb9\xd3\xa8\xb0S\x87 `\xa2\xeb\xf3W\xce" + b" 7\xf9N#\r\xe6\xbe\t\x9d\xe7\x811\xf9\x10\xc1\xc2\x14\xf6\xfc\xcba\xb7" + b"\xb1\x7f\x95l\xe4\tjA\xec:\x10\xe5\xfe\xc2\\=D\xe2\x0c\x0b3]\xf7\xc1\xf7" + b"\xbceZ\xb1A\xea\x16\xe5\xfddgFQ\xed\xaf\x04\xa3\xd3\xf8\xa2q\x19B\xd4r" + b"\xc5\x0c\x9a\x14\x94\xea\x91\xc4o\xe4\xbb\xb4\x99\xf4@\xd1\xe6\x0c\xe3" + b"\xc6d\xa0Q\n\xf2/\xd8\xb8S5\x8a\x18:\xb5g\xac\x95D\xce\x17\x07\xd4z\xda" + b"\x90\xe65\x07\x19H!\t\xfdu\x16\x8e\x0eR\x19\xf4\x8cl\x0c\xf9Q\xf1\x80" + b"\xe3\xbf\xd7O\xf8\x8c\x18\x0b\x9c\xf1\x1fb\xe1\tR\xb2\xf1\xe1A\xea \xcf-" + b"IGE\xf1\x14\x98$\x83\x15\xc9\xd8j\xbf\x19\x0f\xd5\xd1\xaa\xb3\xf3\xa5I2s" + b"\x8d\x145\xca\xd5\xd93\x9c\xb8D0\xe6\xaa%\xd0\xc0P}JO^h\x8e\x08\xadlV." + b"\x18\x88\x13\x05o\xb0\x07\xeaw\xe0\xb6\xa4\xd5*\xe4r\xef\x07G+\xc1\xbei[" + b"w\xe8\xab@_\xef\x15y\xe5\x12\xc9W\x1b.\xad\x85-\xc2\xf7\xe3mU6g\x8eSA" + b"\x01(\xd3\xdb\x16\x13=\xde\x92\xf9,D\xb8\x8a\xb2\xb4\xc9\xc3\xefnE\xe8\\" + b"\xa6\xe2Y\xd2\xcf\xcb\x8c\xb6\xd5\xe9\x1d\x1e\x9a\x8b~\xe2\xa6\rE\x84uV" + b"\xed\xc6\x99\xddm<\x10[\x0fu\x1f\xc1\x1d1\n\xcfw\xb2%!\xf0[\xce\x87\x83B" + b"\x08\xaa,\x08%d\xcef\x94\"\xd9g.\xc83\xcbXY+4\xec\x85qA\n\x1d=9\xf0*\xb1" + b"\x1f/\xf3s\xd61b\x7f@\xfb\x9d\xe3FQ\\\xbd\x82\x1e\x00\xf3\xce\xd3\xe1" + b"\xca,E\xfd7[\xab\xb6\xb7\xac!mA}\xbd\x9d3R5\x9cF\xabH\xeb\x92)cc\x13\xd0" + b"\xbd\xee\xe9n{\x1dIJB\xa5\xeb\x11\xe8`w&`\x8b}@Oxe\t\x8a\x07\x02\x95\xf2" + b"\xed\xda|\xb1e\xbe\xaa\xbbg\x19@\xe1Y\x878\x84\x0f\x8c\xe3\xc98\xf2\x9e" + b"\xd5N\xb5J\xef\xab!\xe2\x8dq\xe1\xe5q\xc5\xee\x11W\xb7\xe4k*\x027\xa0" + b"\xa3J\xf4\xd8m\xd0q\x94\xcb\x07\n:\xb6`.\xe4\x9c\x15+\xc0)\xde\x80X\xd4" + b"\xcfQm\x01\xc2cP\x1cA\x85'\xc9\xac\x8b\xe6\xb2)\xe6\x84t\x1c\x92\xe4Z" + b"\x1cR\xb0\x9e\x96\xd1\xfb\x1c\xa6\x8b\xcb`\x10\x12]\xf2gR\x9bFT\xe0\xc8H" + b"S\xfb\xac<\x04\xc7\xc1\xe8\xedP\xf4\x16\xdb\xc0\xd7e\xc2\x17J^\x1f\xab" + b"\xff[\x08\x19\xb4\xf5\xfb\x19\xb4\x04\xe5c~']\xcb\xc2A\xec\x90\xd0\xed" + b"\x06,\xc5K{\x86\x03\xb1\xcdMx\xdeQ\x8c3\xf9\x8a\xea=\x89\xaba\xd2\xc89a" + b"\xd72\xf0\xc3\x19\x8a\xdfs\xd4\xfd\xbb\x81b\xeaE\"\xd8\xf4d\x0cD\xf7IJ!" + b"\xe5d\xbbG\xe9\xcam\xaa\x0f_r\x95\x91NBq\xcaP\xce\xa7\xa9\xb5\x10\x94eP!" + b"|\x856\xcd\xbfIir\xb8e\x9bjP\x97q\xabwS7\x1a\x0ehM\xe7\xca\x86?\xdeP}y~" + b"\x0f\x95I\xfc\x13\xe1r\xa9k\x88\xcb" + b"\xfd\xc3v\xe2\xb9\x8a\x02\x8eq\x92I\xf8\xf6\xf1\x03s\x9b\xb8\xe3\"\xe3" + b"\xa9\xa5>D\xb8\x96;\xe7\x92\xd133\xe8\xdd'e\xc9.\xdc;\x17\x1f\xf5H\x13q" + b"\xa4W\x0c\xdb~\x98\x01\xeb\xdf\xe32\x13\x0f\xddx\n6\xa0\t\x10\xb6\xbb" + b"\xb0\xc3\x18\xb6;\x9fj[\xd9\xd5\xc9\x06\x8a\x87\xcd\xe5\xee\xfc\x9c-%@" + b"\xee\xe0\xeb\xd2\xe3\xe8\xfb\xc0\x122\\\xc7\xaf\xc2\xa1Oth\xb3\x8f\x82" + b"\xb3\x18\xa8\x07\xd5\xee_\xbe\xe0\x1cA\x1e_\r\x9a\xb0\x17W&\xa2D\x91\x94" + b"\x1a\xb2\xef\xf2\xdc\x85;X\xb0,\xeb>-7S\xe5\xca\x07)\x1fp\x7f\xcaQBL\xca" + b"\xf3\xb9d\xfc\xb5su\xb0\xc8\x95\x90\xeb*)\xa0v\xe4\x9a{FW\xf4l\xde\xcdj" + b"\x00" +) + +ISSUE_21872_DAT = ( + b']\x00\x00@\x00h3\x00\x00\x00\x00\x00\x00\x00\x00`D\x0c\x99\xc8' + b'\xd1\xbbZ^\xc43+\x83\xcd\xf1\xc6g\xec-\x061F\xb1\xbb\xc7\x17%-\xea' + b'\xfap\xfb\x8fs\x128\xb2,\x88\xe4\xc0\x12|*x\xd0\xa2\xc4b\x1b!\x02c' + b'\xab\xd9\x87U\xb8n \xfaVJ\x9a"\xb78\xff%_\x17`?@*\xc2\x82' + b"\xf2^\x1b\xb8\x04&\xc0\xbb\x03g\x9d\xca\xe9\xa4\xc9\xaf'\xe5\x8e}" + b'F\xdd\x11\xf3\x86\xbe\x1fN\x95\\\xef\xa2Mz-\xcb\x9a\xe3O@' + b"\x19\x07\xf6\xee\x9e\x9ag\xc6\xa5w\rnG'\x99\xfd\xfeGI\xb0" + b'\xbb\xf9\xc2\xe1\xff\xc5r\xcf\x85y[\x01\xa1\xbd\xcc/\xa3\x1b\x83\xaa' + b'\xc6\xf9\x99\x0c\xb6_\xc9MQ+x\xa2F\xda]\xdd\xe8\xfb\x1a&' + b',\xc4\x19\x1df\x81\x1e\x90\xf3\xb8Hgr\x85v\xbe\xa3qx\x01Y\xb5\x9fF' + b"\x13\x18\x01\xe69\x9b\xc8'\x1e\x9d\xd6\xe4F\x84\xac\xf8d<\x11\xd5" + b'\\\x0b\xeb\x0e\x82\xab\xb1\xe6\x1fka\xe1i\xc4 C\xb1"4)\xd6\xa7`\x02' + b'\xec\x11\x8c\xf0\x14\xb0\x1d\x1c\xecy\xf0\xb7|\x11j\x85X\xb2!\x1c' + b'\xac\xb5N\xc7\x85j\x9ev\xf5\xe6\x0b\xc1]c\xc15\x16\x9f\xd5\x99' + b"\xfei^\xd2G\x9b\xbdl\xab:\xbe,\xa9'4\x82\xe5\xee\xb3\xc1" + b'$\x93\x95\xa8Y\x16\xf5\xbf\xacw\x91\x04\x1d\x18\x06\xe9\xc5\xfdk\x06' + b'\xe8\xfck\xc5\x86>\x8b~\xa4\xcb\xf1\xb3\x04\xf1\x04G5\xe2\xcc]' + b'\x16\xbf\x140d\x18\xe2\xedw#(3\xca\xa1\x80bX\x7f\xb3\x84' + b'\x9d\xdb\xe7\x08\x97\xcd\x16\xb9\xf1\xd5r+m\x1e\xcb3q\xc5\x9e\x92' + b"\x7f\x8e*\xc7\xde\xe9\xe26\xcds\xb1\x10-\xf6r\x02?\x9d\xddCgJN'" + b'\x11M\xfa\nQ\n\xe6`m\xb8N\xbbq\x8el\x0b\x02\xc7:q\x04G\xa1T' + b'\xf1\xfe!0\x85~\xe5\x884\xe9\x89\xfb\x13J8\x15\xe42\xb6\xad' + b'\x877A\x9a\xa6\xbft]\xd0\xe35M\xb0\x0cK\xc8\xf6\x88\xae\xed\xa9,j7' + b'\x81\x13\xa0(\xcb\xe1\xe9l2\x7f\xcd\xda\x95(\xa70B\xbd\xf4\xe3' + b'hp\x94\xbdJ\xd7\t\xc7g\xffo?\x89?\xf8}\x7f\xbc\x1c\x87' + b'\x14\xc0\xcf\x8cV:\x9a\x0e\xd0\xb2\x1ck\xffk\xb9\xe0=\xc7\x8d/' + b'\xb8\xff\x7f\x1d\x87`\x19.\x98X*~\xa7j\xb9\x0b"\xf4\xe4;V`\xb9\xd7' + b'\x03\x1e\xd0t0\xd3\xde\x1fd\xb9\xe2)\x16\x81}\xb1\\b\x7fJ' + b'\x92\xf4\xff\n+V!\xe9\xde\x98\xa0\x8fK\xdf7\xb9\xc0\x12\x1f\xe2' + b'\xe9\xb0`\xae\x14\r\xa7\xc4\x81~\xd8\x8d\xc5\x06\xd8m\xb0Y\x8a)' + b'\x06/\xbb\xf9\xac\xeaP\xe0\x91\x05m[\xe5z\xe6Z\xf3\x9f\xc7\xd0' + b'\xd3\x8b\xf3\x8a\x1b\xfa\xe4Pf\xbc0\x17\x10\xa9\xd0\x95J{\xb3\xc3' + b'\xfdW\x9bop\x0f\xbe\xaee\xa3]\x93\x9c\xda\xb75<\xf6g!\xcc\xb1\xfc\\' + b'7\x152Mc\x17\x84\x9d\xcd35\r0\xacL-\xf3\xfb\xcb\x96\x1e\xe9U\x7f' + b'\xd7\xca\xb0\xcc\x89\x0c*\xce\x14\xd1P\xf1\x03\xb6.~9o?\xe8' + b'\r\x86\xe0\x92\x87}\xa3\x84\x03P\xe0\xc2\x7f\n;m\x9d\x9e\xb4|' + b'\x8c\x18\xc0#0\xfe3\x07<\xda\xd8\xcf^\xd4Hi\xd6\xb3\x0bT' + b'\x1dF\x88\x85q}\x02\xc6&\xc4\xae\xce\x9cU\xfa\x0f\xcc\xb6\x1f\x11' + b'drw\x9eN\x19\xbd\xffz\x0f\xf0\x04s\xadR\xc1\xc0\xbfl\xf1\xba\xf95^' + b'e\xb1\xfbVY\xd9\x9f\x1c\xbf*\xc4\xa86\x08+\xd6\x88[\xc4_rc\xf0f' + b'\xb8\xd4\xec\x1dx\x19|\xbf\xa7\xe0\x82\x0b\x8c~\x10L/\x90\xd6\xfb' + b'\x81\xdb\x98\xcc\x02\x14\xa5C\xb2\xa7i\xfd\xcd\x1fO\xf7\xe9\x89t\xf0' + b'\x17\xa5\x1c\xad\xfe' + b'"\xd1v`\x82\xd5$\x89\xcf^\xd52.\xafd\xe8d@\xaa\xd5Y|\x90\x84' + b'j\xdb}\x84riV\x8e\xf0X4rB\xf2NPS[\x8e\x88\xd4\x0fI\xb8' + b'\xdd\xcb\x1d\xf2(\xdf;9\x9e|\xef^0;.*[\x9fl\x7f\xa2_X\xaff!\xbb\x03' + b'\xff\x19\x8f\x88\xb5\xb6\x884\xa3\x05\xde3D{\xe3\xcb\xce\xe4t]' + b'\x875\xe3Uf\xae\xea\x88\x1c\x03b\n\xb1,Q\xec\xcf\x08\t\xde@\x83\xaa<' + b',-\xe4\xee\x9b\x843\xe5\x007\tK\xac\x057\xd6*X\xa3\xc6~\xba\xe6O' + b'\x81kz"\xbe\xe43sL\xf1\xfa;\xf4^\x1e\xb4\x80\xe2\xbd\xaa\x17Z\xe1f' + b'\xda\xa6\xb9\x07:]}\x9fa\x0b?\xba\xe7\xf15\x04M\xe3\n}M\xa4\xcb\r' + b'2\x8a\x88\xa9\xa7\x92\x93\x84\x81Yo\x00\xcc\xc4\xab\x9aT\x96\x0b\xbe' + b'U\xac\x1d\x8d\x1b\x98"\xf8\x8f\xf1u\xc1n\xcc\xfcA\xcc\x90\xb7i' + b'\x83\x9c\x9c~\x1d4\xa2\xf0*J\xe7t\x12\xb4\xe3\xa0u\xd7\x95Z' + b'\xf7\xafG\x96~ST,\xa7\rC\x06\xf4\xf0\xeb`2\x9e>Q\x0e\xf6\xf5\xc5' + b'\x9b\xb5\xaf\xbe\xa3\x8f\xc0\xa3hu\x14\x12 \x97\x99\x04b\x8e\xc7\x1b' + b'VKc\xc1\xf3 \xde\x85-:\xdc\x1f\xac\xce*\x06\xb3\x80;`' + b'\xdb\xdd\x97\xfdg\xbf\xe7\xa8S\x08}\xf55e7\xb8/\xf0!\xc8' + b"Y\xa8\x9a\x07'\xe2\xde\r\x02\xe1\xb2\x0c\xf4C\xcd\xf9\xcb(\xe8\x90" + b'\xd3bTD\x15_\xf6\xc3\xfb\xb3E\xfc\xd6\x98{\xc6\\fz\x81\xa99\x85\xcb' + b'\xa5\xb1\x1d\x94bqW\x1a!;z~\x18\x88\xe8i\xdb\x1b\x8d\x8d' + b'\x06\xaa\x0e\x99s+5k\x00\xe4\xffh\xfe\xdbt\xa6\x1bU\xde\xa3' + b'\xef\xcb\x86\x9e\x81\x16j\n\x9d\xbc\xbbC\x80?\x010\xc7Jj;' + b'\xc4\xe5\x86\xd5\x0e0d#\xc6;\xb8\xd1\xc7c\xb5&8?\xd9J\xe5\xden\xb9' + b'\xe9cb4\xbb\xe6\x14\xe0\xe7l\x1b\x85\x94\x1fh\xf1n\xdeZ\xbe' + b'\x88\xff\xc2e\xca\xdc,B-\x8ac\xc9\xdf\xf5|&\xe4LL\xf0\x1f\xaa8\xbd' + b'\xc26\x94bVi\xd3\x0c\x1c\xb6\xbb\x99F\x8f\x0e\xcc\x8e4\xc6/^W\xf5?' + b'\xdc\x84(\x14dO\x9aD6\x0f4\xa3,\x0c\x0bS\x9fJ\xe1\xacc^\x8a0\t\x80D[' + b'\xb8\xe6\x86\xb0\xe8\xd4\xf9\x1en\xf1\xf5^\xeb\xb8\xb8\xf8' + b')\xa8\xbf\xaa\x84\x86\xb1a \x95\x16\x08\x1c\xbb@\xbd+\r/\xfb' + b'\x92\xfbh\xf1\x8d3\xf9\x92\xde`\xf1\x86\x03\xaa+\xd9\xd9\xc6P\xaf' + b'\xe3-\xea\xa5\x0fB\xca\xde\xd5n^\xe3/\xbf\xa6w\xc8\x0e' + b'\xc6\xfd\x97_+D{\x03\x15\xe8s\xb1\xc8HAG\xcf\xf4\x1a\xdd' + b'\xad\x11\xbf\x157q+\xdeW\x89g"X\x82\xfd~\xf7\xab4\xf6`\xab\xf1q' + b')\x82\x10K\xe9sV\xfe\xe45\xafs*\x14\xa7;\xac{\x06\x9d<@\x93G' + b'j\x1d\xefL\xe9\xd8\x92\x19&\xa1\x16\x19\x04\tu5\x01]\xf6\xf4' + b'\xcd\\\xd8A|I\xd4\xeb\x05\x88C\xc6e\xacQ\xe9*\x97~\x9au\xf8Xy' + b"\x17P\x10\x9f\n\x8c\xe2fZEu>\x9b\x1e\x91\x0b'`\xbd\xc0\xa8\x86c\x1d" + b'Z\xe2\xdc8j\x95\xffU\x90\x1e\xf4o\xbc\xe5\xe3e>\xd2R\xc0b#\xbc\x15' + b'H-\xb9!\xde\x9d\x90k\xdew\x9b{\x99\xde\xf7/K)A\xfd\xf5\xe6:\xda' + b'UM\xcc\xbb\xa2\x0b\x9a\x93\xf5{9\xc0 \xd2((6i\xc0\xbbu\xd8\x9e\x8d' + b'\xf8\x04q\x10\xd4\x14\x9e7-\xb9B\xea\x01Q8\xc8v\x9a\x12A\x88Cd\x92' + b"\x1c\x8c!\xf4\x94\x87'\xe3\xcd\xae\xf7\xd8\x93\xfa\xde\xa8b\x9e\xee2" + b'K\xdb\x00l\x9d\t\xb1|D\x05U\xbb\xf4>\xf1w\x887\xd1}W\x9d|g|1\xb0\x13' + b"\xa3 \xe5\xbfm@\xc06+\xb7\t\xcf\x15D\x9a \x1fM\x1f\xd2\xb5'\xa9\xbb" + b'~Co\x82\xfa\xc2\t\xe6f\xfc\xbeI\xae1\x8e\xbe\xb8\xcf\x86\x17' + b'\x9f\xe2`\xbd\xaf\xba\xb9\xbc\x1b\xa3\xcd\x82\x8fwc\xefd\xa9\xd5\x14' + b'\xe2C\xafUE\xb6\x11MJH\xd0=\x05\xd4*I\xff"\r\x1b^\xcaS6=\xec@\xd5' + b'\x11,\xe0\x87Gr\xaa[\xb8\xbc>n\xbd\x81\x0c\x07<\xe9\x92(' + b'\xb2\xff\xac}\xe7\xb6\x15\x90\x9f~4\x9a\xe6\xd6\xd8s\xed\x99tf' + b'\xa0f\xf8\xf1\x87\t\x96/)\x85\xb6\n\xd7\xb2w\x0b\xbc\xba\x99\xee' + b'Q\xeen\x1d\xad\x03\xc3s\xd1\xfd\xa2\xc6\xb7\x9a\x9c(G<6\xad[~H ' + b'\x16\x89\x89\xd0\xc3\xd2\xca~\xac\xea\xa5\xed\xe5\xfb\r:' + b'\x8e\xa6\xf1e\xbb\xba\xbd\xe0(\xa3\x89_\x01(\xb5c\xcc\x9f\x1fg' + b'v\xfd\x17\xb3\x08S=S\xee\xfc\x85>\x91\x8d\x8d\nYR\xb3G\xd1A\xa2\xb1' + b'\xec\xb0\x01\xd2\xcd\xf9\xfe\x82\x06O\xb3\xecd\xa9c\xe0\x8eP\x90\xce' + b'\xe0\xcd\xd8\xd8\xdc\x9f\xaa\x01"[Q~\xe4\x88\xa1#\xc1\x12C\xcf' + b'\xbe\x80\x11H\xbf\x86\xd8\xbem\xcfWFQ(X\x01DK\xdfB\xaa\x10.-' + b'\xd5\x9e|\x86\x15\x86N]\xc7Z\x17\xcd=\xd7)M\xde\x15\xa4LTi\xa0\x15' + b'\xd1\xe7\xbdN\xa4?\xd1\xe7\x02\xfe4\xe4O\x89\x98&\x96\x0f\x02\x9c' + b'\x9e\x19\xaa\x13u7\xbd0\xdc\xd8\x93\xf4BNE\x1d\x93\x82\x81\x16' + b'\xe5y\xcf\x98D\xca\x9a\xe2\xfd\xcdL\xcc\xd1\xfc_\x0b\x1c\xa0]\xdc' + b'\xa91 \xc9c\xd8\xbf\x97\xcfp\xe6\x19-\xad\xff\xcc\xd1N(\xe8' + b'\xeb#\x182\x96I\xf7l\xf3r\x00' +) + + +if __name__ == "__main__": + unittest.main() \ No newline at end of file diff --git a/Lib/test/test_math.py b/Lib/test/test_math.py index 2f64180652..16d12f9688 100644 --- a/Lib/test/test_math.py +++ b/Lib/test/test_math.py @@ -4,6 +4,7 @@ from test.support import verbose, requires_IEEE_754 from test import support import unittest +import fractions import itertools import decimal import math @@ -32,8 +33,8 @@ else: file = __file__ test_dir = os.path.dirname(file) or os.curdir -math_testcases = os.path.join(test_dir, 'math_testcases.txt') -test_file = os.path.join(test_dir, 'cmath_testcases.txt') +math_testcases = os.path.join(test_dir, 'mathdata', 'math_testcases.txt') +test_file = os.path.join(test_dir, 'mathdata', 'cmath_testcases.txt') def to_ulps(x): @@ -186,6 +187,9 @@ def result_check(expected, got, ulp_tol=5, abs_tol=0.0): # Check exactly equal (applies also to strings representing exceptions) if got == expected: + if not got and not expected: + if math.copysign(1, got) != math.copysign(1, expected): + return f"expected {expected}, got {got} (zero has wrong sign)" return None failure = "not equal" @@ -234,6 +238,10 @@ def __init__(self, value): def __index__(self): return self.value +class BadDescr: + def __get__(self, obj, objtype=None): + raise ValueError + class MathTests(unittest.TestCase): def ftest(self, name, got, expected, ulp_tol=5, abs_tol=0.0): @@ -323,6 +331,7 @@ def testAtan2(self): self.ftest('atan2(0, 1)', math.atan2(0, 1), 0) self.ftest('atan2(1, 1)', math.atan2(1, 1), math.pi/4) self.ftest('atan2(1, 0)', math.atan2(1, 0), math.pi/2) + self.ftest('atan2(1, -1)', math.atan2(1, -1), 3*math.pi/4) # math.atan2(0, x) self.ftest('atan2(0., -inf)', math.atan2(0., NINF), math.pi) @@ -416,16 +425,22 @@ def __ceil__(self): return 42 class TestNoCeil: pass + class TestBadCeil: + __ceil__ = BadDescr() self.assertEqual(math.ceil(TestCeil()), 42) self.assertEqual(math.ceil(FloatCeil()), 42) self.assertEqual(math.ceil(FloatLike(42.5)), 43) self.assertRaises(TypeError, math.ceil, TestNoCeil()) + self.assertRaises(ValueError, math.ceil, TestBadCeil()) t = TestNoCeil() t.__ceil__ = lambda *args: args self.assertRaises(TypeError, math.ceil, t) self.assertRaises(TypeError, math.ceil, t, 0) + self.assertEqual(math.ceil(FloatLike(+1.0)), +1.0) + self.assertEqual(math.ceil(FloatLike(-1.0)), -1.0) + @requires_IEEE_754 def testCopysign(self): self.assertEqual(math.copysign(1, 42), 1.0) @@ -566,16 +581,22 @@ def __floor__(self): return 42 class TestNoFloor: pass + class TestBadFloor: + __floor__ = BadDescr() self.assertEqual(math.floor(TestFloor()), 42) self.assertEqual(math.floor(FloatFloor()), 42) self.assertEqual(math.floor(FloatLike(41.9)), 41) self.assertRaises(TypeError, math.floor, TestNoFloor()) + self.assertRaises(ValueError, math.floor, TestBadFloor()) t = TestNoFloor() t.__floor__ = lambda *args: args self.assertRaises(TypeError, math.floor, t) self.assertRaises(TypeError, math.floor, t, 0) + self.assertEqual(math.floor(FloatLike(+1.0)), +1.0) + self.assertEqual(math.floor(FloatLike(-1.0)), -1.0) + def testFmod(self): self.assertRaises(TypeError, math.fmod) self.ftest('fmod(10, 1)', math.fmod(10, 1), 0.0) @@ -597,6 +618,7 @@ def testFmod(self): self.assertEqual(math.fmod(-3.0, NINF), -3.0) self.assertEqual(math.fmod(0.0, 3.0), 0.0) self.assertEqual(math.fmod(0.0, NINF), 0.0) + self.assertRaises(ValueError, math.fmod, INF, INF) def testFrexp(self): self.assertRaises(TypeError, math.frexp) @@ -638,7 +660,7 @@ def testFsum(self): def msum(iterable): """Full precision summation. Compute sum(iterable) without any intermediate accumulation of error. Based on the 'lsum' function - at http://code.activestate.com/recipes/393090/ + at https://code.activestate.com/recipes/393090-binary-floating-point-summation-accurate-to-full-p/ """ tmant, texp = 0, 0 @@ -666,6 +688,7 @@ def msum(iterable): ([], 0.0), ([0.0], 0.0), ([1e100, 1.0, -1e100, 1e-100, 1e50, -1.0, -1e50], 1e-100), + ([1e100, 1.0, -1e100, 1e-100, 1e50, -1, -1e50], 1e-100), ([2.0**53, -0.5, -2.0**-54], 2.0**53-1.0), ([2.0**53, 1.0, 2.0**-100], 2.0**53+2.0), ([2.0**53+10.0, 1.0, 2.0**-100], 2.0**53+12.0), @@ -713,6 +736,22 @@ def msum(iterable): s = msum(vals) self.assertEqual(msum(vals), math.fsum(vals)) + self.assertEqual(math.fsum([1.0, math.inf]), math.inf) + self.assertTrue(math.isnan(math.fsum([math.nan, 1.0]))) + self.assertEqual(math.fsum([1e100, FloatLike(1.0), -1e100, 1e-100, + 1e50, FloatLike(-1.0), -1e50]), 1e-100) + self.assertRaises(OverflowError, math.fsum, [1e+308, 1e+308]) + self.assertRaises(ValueError, math.fsum, [math.inf, -math.inf]) + self.assertRaises(TypeError, math.fsum, ['spam']) + self.assertRaises(TypeError, math.fsum, 1) + self.assertRaises(OverflowError, math.fsum, [10**1000]) + + def bad_iter(): + yield 1.0 + raise ZeroDivisionError + + self.assertRaises(ZeroDivisionError, math.fsum, bad_iter()) + def testGcd(self): gcd = math.gcd self.assertEqual(gcd(0, 0), 0) @@ -773,9 +812,13 @@ def testHypot(self): # Test allowable types (those with __float__) self.assertEqual(hypot(12.0, 5.0), 13.0) self.assertEqual(hypot(12, 5), 13) + self.assertEqual(hypot(0.75, -1), 1.25) + self.assertEqual(hypot(-1, 0.75), 1.25) + self.assertEqual(hypot(0.75, FloatLike(-1.)), 1.25) + self.assertEqual(hypot(FloatLike(-1.), 0.75), 1.25) self.assertEqual(hypot(Decimal(12), Decimal(5)), 13) self.assertEqual(hypot(Fraction(12, 32), Fraction(5, 32)), Fraction(13, 32)) - self.assertEqual(hypot(bool(1), bool(0), bool(1), bool(1)), math.sqrt(3)) + self.assertEqual(hypot(True, False, True, True, True), 2.0) # Test corner cases self.assertEqual(hypot(0.0, 0.0), 0.0) # Max input is zero @@ -830,6 +873,8 @@ def testHypot(self): scale = FLOAT_MIN / 2.0 ** exp self.assertEqual(math.hypot(4*scale, 3*scale), 5*scale) + self.assertRaises(TypeError, math.hypot, *([1.0]*18), 'spam') + @requires_IEEE_754 @unittest.skipIf(HAVE_DOUBLE_ROUNDING, "hypot() loses accuracy on machines with double rounding") @@ -922,12 +967,16 @@ def testDist(self): # Test allowable types (those with __float__) self.assertEqual(dist((14.0, 1.0), (2.0, -4.0)), 13.0) self.assertEqual(dist((14, 1), (2, -4)), 13) + self.assertEqual(dist((FloatLike(14.), 1), (2, -4)), 13) + self.assertEqual(dist((11, 1), (FloatLike(-1.), -4)), 13) + self.assertEqual(dist((14, FloatLike(-1.)), (2, -6)), 13) + self.assertEqual(dist((14, -1), (2, -6)), 13) self.assertEqual(dist((D(14), D(1)), (D(2), D(-4))), D(13)) self.assertEqual(dist((F(14, 32), F(1, 32)), (F(2, 32), F(-4, 32))), F(13, 32)) - self.assertEqual(dist((True, True, False, True, False), - (True, False, True, True, False)), - sqrt(2.0)) + self.assertEqual(dist((True, True, False, False, True, True), + (True, False, True, False, False, False)), + 2.0) # Test corner cases self.assertEqual(dist((13.25, 12.5, -3.25), @@ -965,6 +1014,8 @@ class T(tuple): dist((1, 2, 3, 4), (5, 6, 7)) with self.assertRaises(ValueError): # Check dimension agree dist((1, 2, 3), (4, 5, 6, 7)) + with self.assertRaises(TypeError): + dist((1,)*17 + ("spam",), (1,)*18) with self.assertRaises(TypeError): # Rejects invalid types dist("abc", "xyz") int_too_big_for_float = 10 ** (sys.float_info.max_10_exp + 5) @@ -972,6 +1023,16 @@ class T(tuple): dist((1, int_too_big_for_float), (2, 3)) with self.assertRaises((ValueError, OverflowError)): dist((2, 3), (1, int_too_big_for_float)) + with self.assertRaises(TypeError): + dist((1,), 2) + with self.assertRaises(TypeError): + dist([1], 2) + + class BadFloat: + __float__ = BadDescr() + + with self.assertRaises(ValueError): + dist([1], [BadFloat()]) # Verify that the one dimensional case is equivalent to abs() for i in range(20): @@ -1110,6 +1171,7 @@ def test_lcm(self): def testLdexp(self): self.assertRaises(TypeError, math.ldexp) + self.assertRaises(TypeError, math.ldexp, 2.0, 1.1) self.ftest('ldexp(0,1)', math.ldexp(0,1), 0) self.ftest('ldexp(1,1)', math.ldexp(1,1), 2) self.ftest('ldexp(1,-1)', math.ldexp(1,-1), 0.5) @@ -1142,6 +1204,7 @@ def testLdexp(self): def testLog(self): self.assertRaises(TypeError, math.log) + self.assertRaises(TypeError, math.log, 1, 2, 3) self.ftest('log(1/e)', math.log(1/math.e), -1) self.ftest('log(1)', math.log(1), 0) self.ftest('log(e)', math.log(math.e), 1) @@ -1152,6 +1215,7 @@ def testLog(self): 2302.5850929940457) self.assertRaises(ValueError, math.log, -1.5) self.assertRaises(ValueError, math.log, -10**1000) + self.assertRaises(ValueError, math.log, 10, -10) self.assertRaises(ValueError, math.log, NINF) self.assertEqual(math.log(INF), INF) self.assertTrue(math.isnan(math.log(NAN))) @@ -1202,6 +1266,278 @@ def testLog10(self): self.assertEqual(math.log(INF), INF) self.assertTrue(math.isnan(math.log10(NAN))) + def testSumProd(self): + sumprod = math.sumprod + Decimal = decimal.Decimal + Fraction = fractions.Fraction + + # Core functionality + self.assertEqual(sumprod(iter([10, 20, 30]), (1, 2, 3)), 140) + self.assertEqual(sumprod([1.5, 2.5], [3.5, 4.5]), 16.5) + self.assertEqual(sumprod([], []), 0) + self.assertEqual(sumprod([-1], [1.]), -1) + self.assertEqual(sumprod([1.], [-1]), -1) + + # Type preservation and coercion + for v in [ + (10, 20, 30), + (1.5, -2.5), + (Fraction(3, 5), Fraction(4, 5)), + (Decimal(3.5), Decimal(4.5)), + (2.5, 10), # float/int + (2.5, Fraction(3, 5)), # float/fraction + (25, Fraction(3, 5)), # int/fraction + (25, Decimal(4.5)), # int/decimal + ]: + for p, q in [(v, v), (v, v[::-1])]: + with self.subTest(p=p, q=q): + expected = sum(p_i * q_i for p_i, q_i in zip(p, q, strict=True)) + actual = sumprod(p, q) + self.assertEqual(expected, actual) + self.assertEqual(type(expected), type(actual)) + + # Bad arguments + self.assertRaises(TypeError, sumprod) # No args + self.assertRaises(TypeError, sumprod, []) # One arg + self.assertRaises(TypeError, sumprod, [], [], []) # Three args + self.assertRaises(TypeError, sumprod, None, [10]) # Non-iterable + self.assertRaises(TypeError, sumprod, [10], None) # Non-iterable + self.assertRaises(TypeError, sumprod, ['x'], [1.0]) + + # Uneven lengths + self.assertRaises(ValueError, sumprod, [10, 20], [30]) + self.assertRaises(ValueError, sumprod, [10], [20, 30]) + + # Overflows + self.assertEqual(sumprod([10**20], [1]), 10**20) + self.assertEqual(sumprod([1], [10**20]), 10**20) + self.assertEqual(sumprod([10**10], [10**10]), 10**20) + self.assertEqual(sumprod([10**7]*10**5, [10**7]*10**5), 10**19) + self.assertRaises(OverflowError, sumprod, [10**1000], [1.0]) + self.assertRaises(OverflowError, sumprod, [1.0], [10**1000]) + + # Error in iterator + def raise_after(n): + for i in range(n): + yield i + raise RuntimeError + with self.assertRaises(RuntimeError): + sumprod(range(10), raise_after(5)) + with self.assertRaises(RuntimeError): + sumprod(raise_after(5), range(10)) + + from test.test_iter import BasicIterClass + + self.assertEqual(sumprod(BasicIterClass(1), [1]), 0) + self.assertEqual(sumprod([1], BasicIterClass(1)), 0) + + # Error in multiplication + class BadMultiply: + def __mul__(self, other): + raise RuntimeError + def __rmul__(self, other): + raise RuntimeError + with self.assertRaises(RuntimeError): + sumprod([10, BadMultiply(), 30], [1, 2, 3]) + with self.assertRaises(RuntimeError): + sumprod([1, 2, 3], [10, BadMultiply(), 30]) + + # Error in addition + with self.assertRaises(TypeError): + sumprod(['abc', 3], [5, 10]) + with self.assertRaises(TypeError): + sumprod([5, 10], ['abc', 3]) + + # Special values should give the same as the pure python recipe + self.assertEqual(sumprod([10.1, math.inf], [20.2, 30.3]), math.inf) + self.assertEqual(sumprod([10.1, math.inf], [math.inf, 30.3]), math.inf) + self.assertEqual(sumprod([10.1, math.inf], [math.inf, math.inf]), math.inf) + self.assertEqual(sumprod([10.1, -math.inf], [20.2, 30.3]), -math.inf) + self.assertTrue(math.isnan(sumprod([10.1, math.inf], [-math.inf, math.inf]))) + self.assertTrue(math.isnan(sumprod([10.1, math.nan], [20.2, 30.3]))) + self.assertTrue(math.isnan(sumprod([10.1, math.inf], [math.nan, 30.3]))) + self.assertTrue(math.isnan(sumprod([10.1, math.inf], [20.3, math.nan]))) + + # Error cases that arose during development + args = ((-5, -5, 10), (1.5, 4611686018427387904, 2305843009213693952)) + self.assertEqual(sumprod(*args), 0.0) + + + @requires_IEEE_754 + @unittest.skipIf(HAVE_DOUBLE_ROUNDING, + "sumprod() accuracy not guaranteed on machines with double rounding") + @support.cpython_only # Other implementations may choose a different algorithm + def test_sumprod_accuracy(self): + sumprod = math.sumprod + self.assertEqual(sumprod([0.1] * 10, [1]*10), 1.0) + self.assertEqual(sumprod([0.1] * 20, [True, False] * 10), 1.0) + self.assertEqual(sumprod([True, False] * 10, [0.1] * 20), 1.0) + self.assertEqual(sumprod([1.0, 10E100, 1.0, -10E100], [1.0]*4), 2.0) + + @unittest.skip("TODO: RUSTPYTHON, Taking a few minutes.") + @support.requires_resource('cpu') + def test_sumprod_stress(self): + sumprod = math.sumprod + product = itertools.product + Decimal = decimal.Decimal + Fraction = fractions.Fraction + + class Int(int): + def __add__(self, other): + return Int(int(self) + int(other)) + def __mul__(self, other): + return Int(int(self) * int(other)) + __radd__ = __add__ + __rmul__ = __mul__ + def __repr__(self): + return f'Int({int(self)})' + + class Flt(float): + def __add__(self, other): + return Int(int(self) + int(other)) + def __mul__(self, other): + return Int(int(self) * int(other)) + __radd__ = __add__ + __rmul__ = __mul__ + def __repr__(self): + return f'Flt({int(self)})' + + def baseline_sumprod(p, q): + """This defines the target behavior including exceptions and special values. + However, it is subject to rounding errors, so float inputs should be exactly + representable with only a few bits. + """ + total = 0 + for p_i, q_i in zip(p, q, strict=True): + total += p_i * q_i + return total + + def run(func, *args): + "Make comparing functions easier. Returns error status, type, and result." + try: + result = func(*args) + except (AssertionError, NameError): + raise + except Exception as e: + return type(e), None, 'None' + return None, type(result), repr(result) + + pools = [ + (-5, 10, -2**20, 2**31, 2**40, 2**61, 2**62, 2**80, 1.5, Int(7)), + (5.25, -3.5, 4.75, 11.25, 400.5, 0.046875, 0.25, -1.0, -0.078125), + (-19.0*2**500, 11*2**1000, -3*2**1500, 17*2*333, + 5.25, -3.25, -3.0*2**(-333), 3, 2**513), + (3.75, 2.5, -1.5, float('inf'), -float('inf'), float('NaN'), 14, + 9, 3+4j, Flt(13), 0.0), + (13.25, -4.25, Decimal('10.5'), Decimal('-2.25'), Fraction(13, 8), + Fraction(-11, 16), 4.75 + 0.125j, 97, -41, Int(3)), + (Decimal('6.125'), Decimal('12.375'), Decimal('-2.75'), Decimal(0), + Decimal('Inf'), -Decimal('Inf'), Decimal('NaN'), 12, 13.5), + (-2.0 ** -1000, 11*2**1000, 3, 7, -37*2**32, -2*2**-537, -2*2**-538, + 2*2**-513), + (-7 * 2.0 ** -510, 5 * 2.0 ** -520, 17, -19.0, -6.25), + (11.25, -3.75, -0.625, 23.375, True, False, 7, Int(5)), + ] + + for pool in pools: + for size in range(4): + for args1 in product(pool, repeat=size): + for args2 in product(pool, repeat=size): + args = (args1, args2) + self.assertEqual( + run(baseline_sumprod, *args), + run(sumprod, *args), + args, + ) + + @requires_IEEE_754 + @unittest.skipIf(HAVE_DOUBLE_ROUNDING, + "sumprod() accuracy not guaranteed on machines with double rounding") + @support.cpython_only # Other implementations may choose a different algorithm + @support.requires_resource('cpu') + def test_sumprod_extended_precision_accuracy(self): + import operator + from fractions import Fraction + from itertools import starmap + from collections import namedtuple + from math import log2, exp2, fabs + from random import choices, uniform, shuffle + from statistics import median + + DotExample = namedtuple('DotExample', ('x', 'y', 'target_sumprod', 'condition')) + + def DotExact(x, y): + vec1 = map(Fraction, x) + vec2 = map(Fraction, y) + return sum(starmap(operator.mul, zip(vec1, vec2, strict=True))) + + def Condition(x, y): + return 2.0 * DotExact(map(abs, x), map(abs, y)) / abs(DotExact(x, y)) + + def linspace(lo, hi, n): + width = (hi - lo) / (n - 1) + return [lo + width * i for i in range(n)] + + def GenDot(n, c): + """ Algorithm 6.1 (GenDot) works as follows. The condition number (5.7) of + the dot product xT y is proportional to the degree of cancellation. In + order to achieve a prescribed cancellation, we generate the first half of + the vectors x and y randomly within a large exponent range. This range is + chosen according to the anticipated condition number. The second half of x + and y is then constructed choosing xi randomly with decreasing exponent, + and calculating yi such that some cancellation occurs. Finally, we permute + the vectors x, y randomly and calculate the achieved condition number. + """ + + assert n >= 6 + n2 = n // 2 + x = [0.0] * n + y = [0.0] * n + b = log2(c) + + # First half with exponents from 0 to |_b/2_| and random ints in between + e = choices(range(int(b/2)), k=n2) + e[0] = int(b / 2) + 1 + e[-1] = 0.0 + + x[:n2] = [uniform(-1.0, 1.0) * exp2(p) for p in e] + y[:n2] = [uniform(-1.0, 1.0) * exp2(p) for p in e] + + # Second half + e = list(map(round, linspace(b/2, 0.0 , n-n2))) + for i in range(n2, n): + x[i] = uniform(-1.0, 1.0) * exp2(e[i - n2]) + y[i] = (uniform(-1.0, 1.0) * exp2(e[i - n2]) - DotExact(x, y)) / x[i] + + # Shuffle + pairs = list(zip(x, y)) + shuffle(pairs) + x, y = zip(*pairs) + + return DotExample(x, y, DotExact(x, y), Condition(x, y)) + + def RelativeError(res, ex): + x, y, target_sumprod, condition = ex + n = DotExact(list(x) + [-res], list(y) + [1]) + return fabs(n / target_sumprod) + + def Trial(dotfunc, c, n): + ex = GenDot(10, c) + res = dotfunc(ex.x, ex.y) + return RelativeError(res, ex) + + times = 1000 # Number of trials + n = 20 # Length of vectors + c = 1e30 # Target condition number + + # If the following test fails, it means that the C math library + # implementation of fma() is not compliant with the C99 standard + # and is inaccurate. To solve this problem, make a new build + # with the symbol UNRELIABLE_FMA defined. That will enable a + # slower but accurate code path that avoids the fma() call. + relative_err = median(Trial(math.sumprod, c, n) for i in range(times)) + self.assertLess(relative_err, 1e-16) + def testModf(self): self.assertRaises(TypeError, math.modf) @@ -1235,6 +1571,7 @@ def testPow(self): self.assertTrue(math.isnan(math.pow(2, NAN))) self.assertTrue(math.isnan(math.pow(0, NAN))) self.assertEqual(math.pow(1, NAN), 1) + self.assertRaises(OverflowError, math.pow, 1e+100, 1e+100) # pow(0., x) self.assertEqual(math.pow(0., INF), 0.) @@ -1550,7 +1887,7 @@ def testTan(self): try: self.assertTrue(math.isnan(math.tan(INF))) self.assertTrue(math.isnan(math.tan(NINF))) - except: + except ValueError: self.assertRaises(ValueError, math.tan, INF) self.assertRaises(ValueError, math.tan, NINF) self.assertTrue(math.isnan(math.tan(NAN))) @@ -1591,6 +1928,8 @@ def __trunc__(self): return 23 class TestNoTrunc: pass + class TestBadTrunc: + __trunc__ = BadDescr() self.assertEqual(math.trunc(TestTrunc()), 23) self.assertEqual(math.trunc(FloatTrunc()), 23) @@ -1599,6 +1938,7 @@ class TestNoTrunc: self.assertRaises(TypeError, math.trunc, 1, 2) self.assertRaises(TypeError, math.trunc, FloatLike(23.5)) self.assertRaises(TypeError, math.trunc, TestNoTrunc()) + self.assertRaises(ValueError, math.trunc, TestBadTrunc()) def testIsfinite(self): self.assertTrue(math.isfinite(0.0)) @@ -1626,11 +1966,11 @@ def testIsinf(self): self.assertFalse(math.isinf(0.)) self.assertFalse(math.isinf(1.)) - @requires_IEEE_754 def test_nan_constant(self): + # `math.nan` must be a quiet NaN with positive sign bit self.assertTrue(math.isnan(math.nan)) + self.assertEqual(math.copysign(1., math.nan), 1.) - @requires_IEEE_754 def test_inf_constant(self): self.assertTrue(math.isinf(math.inf)) self.assertGreater(math.inf, 0.0) @@ -1719,6 +2059,13 @@ def test_testfile(self): except OverflowError: result = 'OverflowError' + # C99+ says for math.h's sqrt: If the argument is +∞ or ±0, it is + # returned, unmodified. On another hand, for csqrt: If z is ±0+0i, + # the result is +0+0i. Lets correct zero sign of er to follow + # first convention. + if id in ['sqrt0002', 'sqrt0003', 'sqrt1001', 'sqrt1023']: + er = math.copysign(er, ar) + # Default tolerances ulp_tol, abs_tol = 5, 0.0 @@ -1733,7 +2080,6 @@ def test_testfile(self): self.fail('Failures in test_testfile:\n ' + '\n '.join(failures)) - @unittest.skip("TODO: RUSTPYTHON, Currently hangs. Function never finishes.") @requires_IEEE_754 def test_mtestfile(self): fail_fmt = "{}: {}({!r}): {}" @@ -1802,6 +2148,8 @@ def test_mtestfile(self): '\n '.join(failures)) def test_prod(self): + from fractions import Fraction as F + prod = math.prod self.assertEqual(prod([]), 1) self.assertEqual(prod([], start=5), 5) @@ -1813,6 +2161,14 @@ def test_prod(self): self.assertEqual(prod([1.0, 2.0, 3.0, 4.0, 5.0]), 120.0) self.assertEqual(prod([1, 2, 3, 4.0, 5.0]), 120.0) self.assertEqual(prod([1.0, 2.0, 3.0, 4, 5]), 120.0) + self.assertEqual(prod([1., F(3, 2)]), 1.5) + + # Error in multiplication + class BadMultiply: + def __rmul__(self, other): + raise RuntimeError + with self.assertRaises(RuntimeError): + prod([10., BadMultiply()]) # Test overflow in fast-path for integers self.assertEqual(prod([1, 1, 2**32, 1, 1]), 2**32) @@ -2044,11 +2400,20 @@ def test_nextafter(self): float.fromhex('0x1.fffffffffffffp-1')) self.assertEqual(math.nextafter(1.0, INF), float.fromhex('0x1.0000000000001p+0')) + self.assertEqual(math.nextafter(1.0, -INF, steps=1), + float.fromhex('0x1.fffffffffffffp-1')) + self.assertEqual(math.nextafter(1.0, INF, steps=1), + float.fromhex('0x1.0000000000001p+0')) + self.assertEqual(math.nextafter(1.0, -INF, steps=3), + float.fromhex('0x1.ffffffffffffdp-1')) + self.assertEqual(math.nextafter(1.0, INF, steps=3), + float.fromhex('0x1.0000000000003p+0')) # x == y: y is returned - self.assertEqual(math.nextafter(2.0, 2.0), 2.0) - self.assertEqualSign(math.nextafter(-0.0, +0.0), +0.0) - self.assertEqualSign(math.nextafter(+0.0, -0.0), -0.0) + for steps in range(1, 5): + self.assertEqual(math.nextafter(2.0, 2.0, steps=steps), 2.0) + self.assertEqualSign(math.nextafter(-0.0, +0.0, steps=steps), +0.0) + self.assertEqualSign(math.nextafter(+0.0, -0.0, steps=steps), -0.0) # around 0.0 smallest_subnormal = sys.float_info.min * sys.float_info.epsilon @@ -2073,6 +2438,11 @@ def test_nextafter(self): self.assertIsNaN(math.nextafter(1.0, NAN)) self.assertIsNaN(math.nextafter(NAN, NAN)) + self.assertEqual(1.0, math.nextafter(1.0, INF, steps=0)) + with self.assertRaises(ValueError): + math.nextafter(1.0, INF, steps=-1) + + @requires_IEEE_754 def test_ulp(self): self.assertEqual(math.ulp(1.0), sys.float_info.epsilon) @@ -2112,6 +2482,14 @@ def __float__(self): # argument to a float. self.assertFalse(getattr(y, "converted", False)) + def test_input_exceptions(self): + self.assertRaises(TypeError, math.exp, "spam") + self.assertRaises(TypeError, math.erf, "spam") + self.assertRaises(TypeError, math.atan2, "spam", 1.0) + self.assertRaises(TypeError, math.atan2, 1.0, "spam") + self.assertRaises(TypeError, math.atan2, 1.0) + self.assertRaises(TypeError, math.atan2, 1.0, 2.0, 3.0) + # Custom assertions. def assertIsNaN(self, value): @@ -2250,9 +2628,247 @@ def test_fractions(self): self.assertAllNotClose(fraction_examples, rel_tol=1e-9) +class FMATests(unittest.TestCase): + """ Tests for math.fma. """ + + def test_fma_nan_results(self): + # Selected representative values. + values = [ + -math.inf, -1e300, -2.3, -1e-300, -0.0, + 0.0, 1e-300, 2.3, 1e300, math.inf, math.nan + ] + + # If any input is a NaN, the result should be a NaN, too. + for a, b in itertools.product(values, repeat=2): + self.assertIsNaN(math.fma(math.nan, a, b)) + self.assertIsNaN(math.fma(a, math.nan, b)) + self.assertIsNaN(math.fma(a, b, math.nan)) + + def test_fma_infinities(self): + # Cases involving infinite inputs or results. + positives = [1e-300, 2.3, 1e300, math.inf] + finites = [-1e300, -2.3, -1e-300, -0.0, 0.0, 1e-300, 2.3, 1e300] + non_nans = [-math.inf, -2.3, -0.0, 0.0, 2.3, math.inf] + + # ValueError due to inf * 0 computation. + for c in non_nans: + for infinity in [math.inf, -math.inf]: + for zero in [0.0, -0.0]: + with self.assertRaises(ValueError): + math.fma(infinity, zero, c) + with self.assertRaises(ValueError): + math.fma(zero, infinity, c) + + # ValueError when a*b and c both infinite of opposite signs. + for b in positives: + with self.assertRaises(ValueError): + math.fma(math.inf, b, -math.inf) + with self.assertRaises(ValueError): + math.fma(math.inf, -b, math.inf) + with self.assertRaises(ValueError): + math.fma(-math.inf, -b, -math.inf) + with self.assertRaises(ValueError): + math.fma(-math.inf, b, math.inf) + with self.assertRaises(ValueError): + math.fma(b, math.inf, -math.inf) + with self.assertRaises(ValueError): + math.fma(-b, math.inf, math.inf) + with self.assertRaises(ValueError): + math.fma(-b, -math.inf, -math.inf) + with self.assertRaises(ValueError): + math.fma(b, -math.inf, math.inf) + + # Infinite result when a*b and c both infinite of the same sign. + for b in positives: + self.assertEqual(math.fma(math.inf, b, math.inf), math.inf) + self.assertEqual(math.fma(math.inf, -b, -math.inf), -math.inf) + self.assertEqual(math.fma(-math.inf, -b, math.inf), math.inf) + self.assertEqual(math.fma(-math.inf, b, -math.inf), -math.inf) + self.assertEqual(math.fma(b, math.inf, math.inf), math.inf) + self.assertEqual(math.fma(-b, math.inf, -math.inf), -math.inf) + self.assertEqual(math.fma(-b, -math.inf, math.inf), math.inf) + self.assertEqual(math.fma(b, -math.inf, -math.inf), -math.inf) + + # Infinite result when a*b finite, c infinite. + for a, b in itertools.product(finites, finites): + self.assertEqual(math.fma(a, b, math.inf), math.inf) + self.assertEqual(math.fma(a, b, -math.inf), -math.inf) + + # Infinite result when a*b infinite, c finite. + for b, c in itertools.product(positives, finites): + self.assertEqual(math.fma(math.inf, b, c), math.inf) + self.assertEqual(math.fma(-math.inf, b, c), -math.inf) + self.assertEqual(math.fma(-math.inf, -b, c), math.inf) + self.assertEqual(math.fma(math.inf, -b, c), -math.inf) + + self.assertEqual(math.fma(b, math.inf, c), math.inf) + self.assertEqual(math.fma(b, -math.inf, c), -math.inf) + self.assertEqual(math.fma(-b, -math.inf, c), math.inf) + self.assertEqual(math.fma(-b, math.inf, c), -math.inf) + + # gh-73468: On some platforms, libc fma() doesn't implement IEE 754-2008 + # properly: it doesn't use the right sign when the result is zero. + @unittest.skipIf( + sys.platform.startswith(("freebsd", "wasi", "netbsd")) + or (sys.platform == "android" and platform.machine() == "x86_64"), + f"this platform doesn't implement IEE 754-2008 properly") + def test_fma_zero_result(self): + nonnegative_finites = [0.0, 1e-300, 2.3, 1e300] + + # Zero results from exact zero inputs. + for b in nonnegative_finites: + self.assertIsPositiveZero(math.fma(0.0, b, 0.0)) + self.assertIsPositiveZero(math.fma(0.0, b, -0.0)) + self.assertIsNegativeZero(math.fma(0.0, -b, -0.0)) + self.assertIsPositiveZero(math.fma(0.0, -b, 0.0)) + self.assertIsPositiveZero(math.fma(-0.0, -b, 0.0)) + self.assertIsPositiveZero(math.fma(-0.0, -b, -0.0)) + self.assertIsNegativeZero(math.fma(-0.0, b, -0.0)) + self.assertIsPositiveZero(math.fma(-0.0, b, 0.0)) + + self.assertIsPositiveZero(math.fma(b, 0.0, 0.0)) + self.assertIsPositiveZero(math.fma(b, 0.0, -0.0)) + self.assertIsNegativeZero(math.fma(-b, 0.0, -0.0)) + self.assertIsPositiveZero(math.fma(-b, 0.0, 0.0)) + self.assertIsPositiveZero(math.fma(-b, -0.0, 0.0)) + self.assertIsPositiveZero(math.fma(-b, -0.0, -0.0)) + self.assertIsNegativeZero(math.fma(b, -0.0, -0.0)) + self.assertIsPositiveZero(math.fma(b, -0.0, 0.0)) + + # Exact zero result from nonzero inputs. + self.assertIsPositiveZero(math.fma(2.0, 2.0, -4.0)) + self.assertIsPositiveZero(math.fma(2.0, -2.0, 4.0)) + self.assertIsPositiveZero(math.fma(-2.0, -2.0, -4.0)) + self.assertIsPositiveZero(math.fma(-2.0, 2.0, 4.0)) + + # Underflow to zero. + tiny = 1e-300 + self.assertIsPositiveZero(math.fma(tiny, tiny, 0.0)) + self.assertIsNegativeZero(math.fma(tiny, -tiny, 0.0)) + self.assertIsPositiveZero(math.fma(-tiny, -tiny, 0.0)) + self.assertIsNegativeZero(math.fma(-tiny, tiny, 0.0)) + self.assertIsPositiveZero(math.fma(tiny, tiny, -0.0)) + self.assertIsNegativeZero(math.fma(tiny, -tiny, -0.0)) + self.assertIsPositiveZero(math.fma(-tiny, -tiny, -0.0)) + self.assertIsNegativeZero(math.fma(-tiny, tiny, -0.0)) + + # Corner case where rounding the multiplication would + # give the wrong result. + x = float.fromhex('0x1p-500') + y = float.fromhex('0x1p-550') + z = float.fromhex('0x1p-1000') + self.assertIsNegativeZero(math.fma(x-y, x+y, -z)) + self.assertIsPositiveZero(math.fma(y-x, x+y, z)) + self.assertIsNegativeZero(math.fma(y-x, -(x+y), -z)) + self.assertIsPositiveZero(math.fma(x-y, -(x+y), z)) + + def test_fma_overflow(self): + a = b = float.fromhex('0x1p512') + c = float.fromhex('0x1p1023') + # Overflow from multiplication. + with self.assertRaises(OverflowError): + math.fma(a, b, 0.0) + self.assertEqual(math.fma(a, b/2.0, 0.0), c) + # Overflow from the addition. + with self.assertRaises(OverflowError): + math.fma(a, b/2.0, c) + # No overflow, even though a*b overflows a float. + self.assertEqual(math.fma(a, b, -c), c) + + # Extreme case: a * b is exactly at the overflow boundary, so the + # tiniest offset makes a difference between overflow and a finite + # result. + a = float.fromhex('0x1.ffffffc000000p+511') + b = float.fromhex('0x1.0000002000000p+512') + c = float.fromhex('0x0.0000000000001p-1022') + with self.assertRaises(OverflowError): + math.fma(a, b, 0.0) + with self.assertRaises(OverflowError): + math.fma(a, b, c) + self.assertEqual(math.fma(a, b, -c), + float.fromhex('0x1.fffffffffffffp+1023')) + + # Another extreme case: here a*b is about as large as possible subject + # to math.fma(a, b, c) being finite. + a = float.fromhex('0x1.ae565943785f9p+512') + b = float.fromhex('0x1.3094665de9db8p+512') + c = float.fromhex('0x1.fffffffffffffp+1023') + self.assertEqual(math.fma(a, b, -c), c) + + def test_fma_single_round(self): + a = float.fromhex('0x1p-50') + self.assertEqual(math.fma(a - 1.0, a + 1.0, 1.0), a*a) + + def test_random(self): + # A collection of randomly generated inputs for which the naive FMA + # (with two rounds) gives a different result from a singly-rounded FMA. + + # tuples (a, b, c, expected) + test_values = [ + ('0x1.694adde428b44p-1', '0x1.371b0d64caed7p-1', + '0x1.f347e7b8deab8p-4', '0x1.19f10da56c8adp-1'), + ('0x1.605401ccc6ad6p-2', '0x1.ce3a40bf56640p-2', + '0x1.96e3bf7bf2e20p-2', '0x1.1af6d8aa83101p-1'), + ('0x1.e5abd653a67d4p-2', '0x1.a2e400209b3e6p-1', + '0x1.a90051422ce13p-1', '0x1.37d68cc8c0fbbp+0'), + ('0x1.f94e8efd54700p-2', '0x1.123065c812cebp-1', + '0x1.458f86fb6ccd0p-1', '0x1.ccdcee26a3ff3p-1'), + ('0x1.bd926f1eedc96p-1', '0x1.eee9ca68c5740p-1', + '0x1.960c703eb3298p-2', '0x1.3cdcfb4fdb007p+0'), + ('0x1.27348350fbccdp-1', '0x1.3b073914a53f1p-1', + '0x1.e300da5c2b4cbp-1', '0x1.4c51e9a3c4e29p+0'), + ('0x1.2774f00b3497bp-1', '0x1.7038ec336bff0p-2', + '0x1.2f6f2ccc3576bp-1', '0x1.99ad9f9c2688bp-1'), + ('0x1.51d5a99300e5cp-1', '0x1.5cd74abd445a1p-1', + '0x1.8880ab0bbe530p-1', '0x1.3756f96b91129p+0'), + ('0x1.73cb965b821b8p-2', '0x1.218fd3d8d5371p-1', + '0x1.d1ea966a1f758p-2', '0x1.5217b8fd90119p-1'), + ('0x1.4aa98e890b046p-1', '0x1.954d85dff1041p-1', + '0x1.122b59317ebdfp-1', '0x1.0bf644b340cc5p+0'), + ('0x1.e28f29e44750fp-1', '0x1.4bcc4fdcd18fep-1', + '0x1.fd47f81298259p-1', '0x1.9b000afbc9995p+0'), + ('0x1.d2e850717fe78p-3', '0x1.1dd7531c303afp-1', + '0x1.e0869746a2fc2p-2', '0x1.316df6eb26439p-1'), + ('0x1.cf89c75ee6fbap-2', '0x1.b23decdc66825p-1', + '0x1.3d1fe76ac6168p-1', '0x1.00d8ea4c12abbp+0'), + ('0x1.3265ae6f05572p-2', '0x1.16d7ec285f7a2p-1', + '0x1.0b8405b3827fbp-1', '0x1.5ef33c118a001p-1'), + ('0x1.c4d1bf55ec1a5p-1', '0x1.bc59618459e12p-2', + '0x1.ce5b73dc1773dp-1', '0x1.496cf6164f99bp+0'), + ('0x1.d350026ac3946p-1', '0x1.9a234e149a68cp-2', + '0x1.f5467b1911fd6p-2', '0x1.b5cee3225caa5p-1'), + ] + for a_hex, b_hex, c_hex, expected_hex in test_values: + a = float.fromhex(a_hex) + b = float.fromhex(b_hex) + c = float.fromhex(c_hex) + expected = float.fromhex(expected_hex) + self.assertEqual(math.fma(a, b, c), expected) + self.assertEqual(math.fma(b, a, c), expected) + + # Custom assertions. + def assertIsNaN(self, value): + self.assertTrue( + math.isnan(value), + msg="Expected a NaN, got {!r}".format(value) + ) + + def assertIsPositiveZero(self, value): + self.assertTrue( + value == 0 and math.copysign(1, value) > 0, + msg="Expected a positive zero, got {!r}".format(value) + ) + + def assertIsNegativeZero(self, value): + self.assertTrue( + value == 0 and math.copysign(1, value) < 0, + msg="Expected a negative zero, got {!r}".format(value) + ) + + def load_tests(loader, tests, pattern): from doctest import DocFileSuite - # tests.addTest(DocFileSuite("ieee754.txt")) + tests.addTest(DocFileSuite(os.path.join("mathdata", "ieee754.txt"))) return tests if __name__ == '__main__': diff --git a/Lib/test/test_named_expressions.py b/Lib/test/test_named_expressions.py index 797b0f512f..03f5384b63 100644 --- a/Lib/test/test_named_expressions.py +++ b/Lib/test/test_named_expressions.py @@ -4,62 +4,80 @@ class NamedExpressionInvalidTest(unittest.TestCase): + # TODO: RUSTPYTHON: wrong error message + @unittest.expectedFailure def test_named_expression_invalid_01(self): code = """x := 0""" with self.assertRaisesRegex(SyntaxError, "invalid syntax"): exec(code, {}, {}) + # TODO: RUSTPYTHON: wrong error message + @unittest.expectedFailure def test_named_expression_invalid_02(self): code = """x = y := 0""" with self.assertRaisesRegex(SyntaxError, "invalid syntax"): exec(code, {}, {}) + # TODO: RUSTPYTHON: wrong error message + @unittest.expectedFailure def test_named_expression_invalid_03(self): code = """y := f(x)""" with self.assertRaisesRegex(SyntaxError, "invalid syntax"): exec(code, {}, {}) + # TODO: RUSTPYTHON: wrong error message + @unittest.expectedFailure def test_named_expression_invalid_04(self): code = """y0 = y1 := f(x)""" with self.assertRaisesRegex(SyntaxError, "invalid syntax"): exec(code, {}, {}) - # TODO: RUSTPYTHON - @unittest.expectedFailure # wrong error message + # TODO: RUSTPYTHON: wrong error message + @unittest.expectedFailure def test_named_expression_invalid_06(self): code = """((a, b) := (1, 2))""" with self.assertRaisesRegex(SyntaxError, "cannot use assignment expressions with tuple"): exec(code, {}, {}) + # TODO: RUSTPYTHON: wrong error message + @unittest.expectedFailure def test_named_expression_invalid_07(self): code = """def spam(a = b := 42): pass""" with self.assertRaisesRegex(SyntaxError, "invalid syntax"): exec(code, {}, {}) + # TODO: RUSTPYTHON: wrong error message + @unittest.expectedFailure def test_named_expression_invalid_08(self): code = """def spam(a: b := 42 = 5): pass""" with self.assertRaisesRegex(SyntaxError, "invalid syntax"): exec(code, {}, {}) + # TODO: RUSTPYTHON: wrong error message + @unittest.expectedFailure def test_named_expression_invalid_09(self): code = """spam(a=b := 'c')""" with self.assertRaisesRegex(SyntaxError, "invalid syntax"): exec(code, {}, {}) + # TODO: RUSTPYTHON: wrong error message + @unittest.expectedFailure def test_named_expression_invalid_10(self): code = """spam(x = y := f(x))""" with self.assertRaisesRegex(SyntaxError, "invalid syntax"): exec(code, {}, {}) + # TODO: RUSTPYTHON: wrong error message + @unittest.expectedFailure def test_named_expression_invalid_11(self): code = """spam(a=1, b := 2)""" @@ -67,6 +85,8 @@ def test_named_expression_invalid_11(self): "positional argument follows keyword argument"): exec(code, {}, {}) + # TODO: RUSTPYTHON: wrong error message + @unittest.expectedFailure def test_named_expression_invalid_12(self): code = """spam(a=1, (b := 2))""" @@ -74,6 +94,8 @@ def test_named_expression_invalid_12(self): "positional argument follows keyword argument"): exec(code, {}, {}) + # TODO: RUSTPYTHON: wrong error message + @unittest.expectedFailure def test_named_expression_invalid_13(self): code = """spam(a=1, (b := 2))""" @@ -81,14 +103,16 @@ def test_named_expression_invalid_13(self): "positional argument follows keyword argument"): exec(code, {}, {}) + # TODO: RUSTPYTHON: wrong error message + @unittest.expectedFailure def test_named_expression_invalid_14(self): code = """(x := lambda: y := 1)""" with self.assertRaisesRegex(SyntaxError, "invalid syntax"): exec(code, {}, {}) - # TODO: RUSTPYTHON - @unittest.expectedFailure # wrong error message + # TODO: RUSTPYTHON: wrong error message + @unittest.expectedFailure def test_named_expression_invalid_15(self): code = """(lambda: x := 1)""" @@ -96,6 +120,8 @@ def test_named_expression_invalid_15(self): "cannot use assignment expressions with lambda"): exec(code, {}, {}) + # TODO: RUSTPYTHON: wrong error message + @unittest.expectedFailure def test_named_expression_invalid_16(self): code = "[i + 1 for i in i := [1,2]]" diff --git a/Lib/test/test_ntpath.py b/Lib/test/test_ntpath.py index 8e23b88676..7609ecea79 100644 --- a/Lib/test/test_ntpath.py +++ b/Lib/test/test_ntpath.py @@ -1032,12 +1032,6 @@ class NtCommonTest(test_genericpath.CommonTest, unittest.TestCase): pathmodule = ntpath attributes = ['relpath'] - # TODO: RUSTPYTHON - if sys.platform == "linux": - @unittest.expectedFailure - def test_nonascii_abspath(self): - super().test_nonascii_abspath() - # TODO: RUSTPYTHON if sys.platform == "win32": # TODO: RUSTPYTHON, ValueError: illegal environment variable name diff --git a/Lib/test/test_os.py b/Lib/test/test_os.py index f10de0b7af..3b19d3d3cd 100644 --- a/Lib/test/test_os.py +++ b/Lib/test/test_os.py @@ -1980,7 +1980,6 @@ def get_urandom_subprocess(self, count): self.assertEqual(len(stdout), count) return stdout - @unittest.expectedFailureIfWindows("TODO: RUSTPYTHON (ModuleNotFoundError: No module named 'os'") def test_urandom_subprocess(self): data1 = self.get_urandom_subprocess(16) data2 = self.get_urandom_subprocess(16) diff --git a/Lib/test/test_pkgutil.py b/Lib/test/test_pkgutil.py index 3a10ec8fc3..ece4cf2d05 100644 --- a/Lib/test/test_pkgutil.py +++ b/Lib/test/test_pkgutil.py @@ -491,33 +491,6 @@ def test_nested(self): self.assertEqual(c, 1) self.assertEqual(d, 2) - -class ImportlibMigrationTests(unittest.TestCase): - # With full PEP 302 support in the standard import machinery, the - # PEP 302 emulation in this module is in the process of being - # deprecated in favour of importlib proper - - def check_deprecated(self): - return check_warnings( - ("This emulation is deprecated and slated for removal in " - "Python 3.12; use 'importlib' instead", - DeprecationWarning)) - - def test_importer_deprecated(self): - with self.check_deprecated(): - pkgutil.ImpImporter("") - - def test_loader_deprecated(self): - with self.check_deprecated(): - pkgutil.ImpLoader("", "", "", "") - - def test_get_loader_avoids_emulation(self): - with check_warnings() as w: - self.assertIsNotNone(pkgutil.get_loader("sys")) - self.assertIsNotNone(pkgutil.get_loader("os")) - self.assertIsNotNone(pkgutil.get_loader("test.support")) - self.assertEqual(len(w.warnings), 0) - @unittest.skipIf(__name__ == '__main__', 'not compatible with __main__') def test_get_loader_handles_missing_loader_attribute(self): global __loader__ diff --git a/Lib/test/test_poll.py b/Lib/test/test_poll.py index 338eb00f0c..a9bfb755c3 100644 --- a/Lib/test/test_poll.py +++ b/Lib/test/test_poll.py @@ -152,8 +152,6 @@ def test_poll2(self): else: self.fail('Unexpected return value from select.poll: %s' % fdlist) - # TODO: RUSTPYTHON int overflow - @unittest.expectedFailure def test_poll3(self): # test int overflow pollster = select.poll() diff --git a/Lib/test/test_popen.py b/Lib/test/test_popen.py index e3030ee02e..e6bfc480cb 100644 --- a/Lib/test/test_popen.py +++ b/Lib/test/test_popen.py @@ -54,12 +54,10 @@ def test_return_code(self): else: self.assertEqual(os.waitstatus_to_exitcode(status), 42) - @unittest.expectedFailureIfWindows("TODO: RUSTPYTHON") def test_contextmanager(self): with os.popen("echo hello") as f: self.assertEqual(f.read(), "hello\n") - @unittest.expectedFailureIfWindows("TODO: RUSTPYTHON") def test_iterating(self): with os.popen("echo hello") as f: self.assertEqual(list(f), ["hello\n"]) diff --git a/Lib/test/test_positional_only_arg.py b/Lib/test/test_positional_only_arg.py index d9d8b03069..e0d784325b 100644 --- a/Lib/test/test_positional_only_arg.py +++ b/Lib/test/test_positional_only_arg.py @@ -22,6 +22,8 @@ def assertRaisesSyntaxError(self, codestr, regex="invalid syntax"): with self.assertRaisesRegex(SyntaxError, regex): compile(codestr + "\n", "", "single") + # TODO: RUSTPYTHON: wrong error message + @unittest.expectedFailure def test_invalid_syntax_errors(self): check_syntax_error(self, "def f(a, b = 5, /, c): pass", "non-default argument follows default argument") check_syntax_error(self, "def f(a = 5, b, /, c): pass", "non-default argument follows default argument") @@ -43,6 +45,8 @@ def test_invalid_syntax_errors(self): check_syntax_error(self, "def f(a, /, c, /, d, *, e): pass") check_syntax_error(self, "def f(a, *, c, /, d, e): pass") + # TODO: RUSTPYTHON: wrong error message + @unittest.expectedFailure def test_invalid_syntax_errors_async(self): check_syntax_error(self, "async def f(a, b = 5, /, c): pass", "non-default argument follows default argument") check_syntax_error(self, "async def f(a = 5, b, /, c): pass", "non-default argument follows default argument") @@ -236,6 +240,8 @@ def test_lambdas(self): x = lambda a, b, /, : a + b self.assertEqual(x(1, 2), 3) + # TODO: RUSTPYTHON: wrong error message + @unittest.expectedFailure def test_invalid_syntax_lambda(self): check_syntax_error(self, "lambda a, b = 5, /, c: None", "non-default argument follows default argument") check_syntax_error(self, "lambda a = 5, b, /, c: None", "non-default argument follows default argument") diff --git a/Lib/test/test_pprint.py b/Lib/test/test_pprint.py index 6ea7e7db2c..4e6fed1ab9 100644 --- a/Lib/test/test_pprint.py +++ b/Lib/test/test_pprint.py @@ -7,8 +7,8 @@ import itertools import pprint import random +import re import test.support -import test.test_set import types import unittest @@ -535,7 +535,10 @@ def test_dataclass_with_repr(self): def test_dataclass_no_repr(self): dc = dataclass3() formatted = pprint.pformat(dc, width=10) - self.assertRegex(formatted, r"") + self.assertRegex( + formatted, + fr"<{re.escape(__name__)}.dataclass3 object at \w+>", + ) def test_recursive_dataclass(self): dc = dataclass4(None) @@ -619,9 +622,6 @@ def test_set_reprs(self): self.assertEqual(pprint.pformat(frozenset3(range(7)), width=20), 'frozenset3({0, 1, 2, 3, 4, 5, 6})') - @unittest.expectedFailure - #See http://bugs.python.org/issue13907 - @test.support.cpython_only def test_set_of_sets_reprs(self): # This test creates a complex arrangement of frozensets and # compares the pretty-printed repr against a string hard-coded in @@ -632,204 +632,106 @@ def test_set_of_sets_reprs(self): # partial ordering (subset relationships), the output of the # list.sort() method is undefined for lists of sets." # - # In a nutshell, the test assumes frozenset({0}) will always - # sort before frozenset({1}), but: - # # >>> frozenset({0}) < frozenset({1}) # False # >>> frozenset({1}) < frozenset({0}) # False # - # Consequently, this test is fragile and - # implementation-dependent. Small changes to Python's sort - # algorithm cause the test to fail when it should pass. - # XXX Or changes to the dictionary implementation... - - cube_repr_tgt = """\ -{frozenset(): frozenset({frozenset({2}), frozenset({0}), frozenset({1})}), - frozenset({0}): frozenset({frozenset(), - frozenset({0, 2}), - frozenset({0, 1})}), - frozenset({1}): frozenset({frozenset(), - frozenset({1, 2}), - frozenset({0, 1})}), - frozenset({2}): frozenset({frozenset(), - frozenset({1, 2}), - frozenset({0, 2})}), - frozenset({1, 2}): frozenset({frozenset({2}), - frozenset({1}), - frozenset({0, 1, 2})}), - frozenset({0, 2}): frozenset({frozenset({2}), - frozenset({0}), - frozenset({0, 1, 2})}), - frozenset({0, 1}): frozenset({frozenset({0}), - frozenset({1}), - frozenset({0, 1, 2})}), - frozenset({0, 1, 2}): frozenset({frozenset({1, 2}), - frozenset({0, 2}), - frozenset({0, 1})})}""" - cube = test.test_set.cube(3) - self.assertEqual(pprint.pformat(cube), cube_repr_tgt) - cubo_repr_tgt = """\ -{frozenset({frozenset({0, 2}), frozenset({0})}): frozenset({frozenset({frozenset({0, - 2}), - frozenset({0, - 1, - 2})}), - frozenset({frozenset({0}), - frozenset({0, - 1})}), - frozenset({frozenset(), - frozenset({0})}), - frozenset({frozenset({2}), - frozenset({0, - 2})})}), - frozenset({frozenset({0, 1}), frozenset({1})}): frozenset({frozenset({frozenset({0, - 1}), - frozenset({0, - 1, - 2})}), - frozenset({frozenset({0}), - frozenset({0, - 1})}), - frozenset({frozenset({1}), - frozenset({1, - 2})}), - frozenset({frozenset(), - frozenset({1})})}), - frozenset({frozenset({1, 2}), frozenset({1})}): frozenset({frozenset({frozenset({1, - 2}), - frozenset({0, - 1, - 2})}), - frozenset({frozenset({2}), - frozenset({1, - 2})}), - frozenset({frozenset(), - frozenset({1})}), - frozenset({frozenset({1}), - frozenset({0, - 1})})}), - frozenset({frozenset({1, 2}), frozenset({2})}): frozenset({frozenset({frozenset({1, - 2}), - frozenset({0, - 1, - 2})}), - frozenset({frozenset({1}), - frozenset({1, - 2})}), - frozenset({frozenset({2}), - frozenset({0, - 2})}), - frozenset({frozenset(), - frozenset({2})})}), - frozenset({frozenset(), frozenset({0})}): frozenset({frozenset({frozenset({0}), - frozenset({0, - 1})}), - frozenset({frozenset({0}), - frozenset({0, - 2})}), - frozenset({frozenset(), - frozenset({1})}), - frozenset({frozenset(), - frozenset({2})})}), - frozenset({frozenset(), frozenset({1})}): frozenset({frozenset({frozenset(), - frozenset({0})}), - frozenset({frozenset({1}), - frozenset({1, - 2})}), - frozenset({frozenset(), - frozenset({2})}), - frozenset({frozenset({1}), - frozenset({0, - 1})})}), - frozenset({frozenset({2}), frozenset()}): frozenset({frozenset({frozenset({2}), - frozenset({1, - 2})}), - frozenset({frozenset(), - frozenset({0})}), - frozenset({frozenset(), - frozenset({1})}), - frozenset({frozenset({2}), - frozenset({0, - 2})})}), - frozenset({frozenset({0, 1, 2}), frozenset({0, 1})}): frozenset({frozenset({frozenset({1, - 2}), - frozenset({0, - 1, - 2})}), - frozenset({frozenset({0, - 2}), - frozenset({0, - 1, - 2})}), - frozenset({frozenset({0}), - frozenset({0, - 1})}), - frozenset({frozenset({1}), - frozenset({0, - 1})})}), - frozenset({frozenset({0}), frozenset({0, 1})}): frozenset({frozenset({frozenset(), - frozenset({0})}), - frozenset({frozenset({0, - 1}), - frozenset({0, - 1, - 2})}), - frozenset({frozenset({0}), - frozenset({0, - 2})}), - frozenset({frozenset({1}), - frozenset({0, - 1})})}), - frozenset({frozenset({2}), frozenset({0, 2})}): frozenset({frozenset({frozenset({0, - 2}), - frozenset({0, - 1, - 2})}), - frozenset({frozenset({2}), - frozenset({1, - 2})}), - frozenset({frozenset({0}), - frozenset({0, - 2})}), - frozenset({frozenset(), - frozenset({2})})}), - frozenset({frozenset({0, 1, 2}), frozenset({0, 2})}): frozenset({frozenset({frozenset({1, - 2}), - frozenset({0, - 1, - 2})}), - frozenset({frozenset({0, - 1}), - frozenset({0, - 1, - 2})}), - frozenset({frozenset({0}), - frozenset({0, - 2})}), - frozenset({frozenset({2}), - frozenset({0, - 2})})}), - frozenset({frozenset({1, 2}), frozenset({0, 1, 2})}): frozenset({frozenset({frozenset({0, - 2}), - frozenset({0, - 1, - 2})}), - frozenset({frozenset({0, - 1}), - frozenset({0, - 1, - 2})}), - frozenset({frozenset({2}), - frozenset({1, - 2})}), - frozenset({frozenset({1}), - frozenset({1, - 2})})})}""" - - cubo = test.test_set.linegraph(cube) - self.assertEqual(pprint.pformat(cubo), cubo_repr_tgt) + # In this test we list all possible invariants of the result + # for unordered frozensets. + # + # This test has a long history, see: + # - https://github.com/python/cpython/commit/969fe57baa0eb80332990f9cda936a33e13fabef + # - https://github.com/python/cpython/issues/58115 + # - https://github.com/python/cpython/issues/111147 + + import textwrap + + # Single-line, always ordered: + fs0 = frozenset() + fs1 = frozenset(('abc', 'xyz')) + data = frozenset((fs0, fs1)) + self.assertEqual(pprint.pformat(data), + 'frozenset({%r, %r})' % (fs0, fs1)) + self.assertEqual(pprint.pformat(data), repr(data)) + + fs2 = frozenset(('one', 'two')) + data = {fs2: frozenset((fs0, fs1))} + self.assertEqual(pprint.pformat(data), + "{%r: frozenset({%r, %r})}" % (fs2, fs0, fs1)) + self.assertEqual(pprint.pformat(data), repr(data)) + + # Single-line, unordered: + fs1 = frozenset(("xyz", "qwerty")) + fs2 = frozenset(("abcd", "spam")) + fs = frozenset((fs1, fs2)) + self.assertEqual(pprint.pformat(fs), repr(fs)) + + # Multiline, unordered: + def check(res, invariants): + self.assertIn(res, [textwrap.dedent(i).strip() for i in invariants]) + + # Inner-most frozensets are singleline, result is multiline, unordered: + fs1 = frozenset(('regular string', 'other string')) + fs2 = frozenset(('third string', 'one more string')) + check( + pprint.pformat(frozenset((fs1, fs2))), + [ + """ + frozenset({%r, + %r}) + """ % (fs1, fs2), + """ + frozenset({%r, + %r}) + """ % (fs2, fs1), + ], + ) + + # Everything is multiline, unordered: + check( + pprint.pformat( + frozenset(( + frozenset(( + "xyz very-very long string", + "qwerty is also absurdly long", + )), + frozenset(( + "abcd is even longer that before", + "spam is not so long", + )), + )), + ), + [ + """ + frozenset({frozenset({'abcd is even longer that before', + 'spam is not so long'}), + frozenset({'qwerty is also absurdly long', + 'xyz very-very long string'})}) + """, + + """ + frozenset({frozenset({'abcd is even longer that before', + 'spam is not so long'}), + frozenset({'xyz very-very long string', + 'qwerty is also absurdly long'})}) + """, + + """ + frozenset({frozenset({'qwerty is also absurdly long', + 'xyz very-very long string'}), + frozenset({'abcd is even longer that before', + 'spam is not so long'})}) + """, + + """ + frozenset({frozenset({'qwerty is also absurdly long', + 'xyz very-very long string'}), + frozenset({'spam is not so long', + 'abcd is even longer that before'})}) + """, + ], + ) def test_depth(self): nested_tuple = (1, (2, (3, (4, (5, 6))))) diff --git a/Lib/test/test_queue.py b/Lib/test/test_queue.py index cfa6003a86..93cbe1fe23 100644 --- a/Lib/test/test_queue.py +++ b/Lib/test/test_queue.py @@ -2,6 +2,7 @@ # to ensure the Queue locks remain stable. import itertools import random +import sys import threading import time import unittest @@ -10,6 +11,8 @@ from test.support import import_helper from test.support import threading_helper +# queue module depends on threading primitives +threading_helper.requires_working_threading(module=True) py_queue = import_helper.import_fresh_module('queue', blocked=['_queue']) c_queue = import_helper.import_fresh_module('queue', fresh=['_queue']) @@ -239,6 +242,418 @@ def test_shrinking_queue(self): with self.assertRaises(self.queue.Full): q.put_nowait(4) + def test_shutdown_empty(self): + q = self.type2test() + q.shutdown() + with self.assertRaises(self.queue.ShutDown): + q.put("data") + with self.assertRaises(self.queue.ShutDown): + q.get() + + def test_shutdown_nonempty(self): + q = self.type2test() + q.put("data") + q.shutdown() + q.get() + with self.assertRaises(self.queue.ShutDown): + q.get() + + def test_shutdown_immediate(self): + q = self.type2test() + q.put("data") + q.shutdown(immediate=True) + with self.assertRaises(self.queue.ShutDown): + q.get() + + def test_shutdown_allowed_transitions(self): + # allowed transitions would be from alive via shutdown to immediate + q = self.type2test() + self.assertFalse(q.is_shutdown) + + q.shutdown() + self.assertTrue(q.is_shutdown) + + q.shutdown(immediate=True) + self.assertTrue(q.is_shutdown) + + q.shutdown(immediate=False) + + def _shutdown_all_methods_in_one_thread(self, immediate): + q = self.type2test(2) + q.put("L") + q.put_nowait("O") + q.shutdown(immediate) + + with self.assertRaises(self.queue.ShutDown): + q.put("E") + with self.assertRaises(self.queue.ShutDown): + q.put_nowait("W") + if immediate: + with self.assertRaises(self.queue.ShutDown): + q.get() + with self.assertRaises(self.queue.ShutDown): + q.get_nowait() + with self.assertRaises(ValueError): + q.task_done() + q.join() + else: + self.assertIn(q.get(), "LO") + q.task_done() + self.assertIn(q.get(), "LO") + q.task_done() + q.join() + # on shutdown(immediate=False) + # when queue is empty, should raise ShutDown Exception + with self.assertRaises(self.queue.ShutDown): + q.get() # p.get(True) + with self.assertRaises(self.queue.ShutDown): + q.get_nowait() # p.get(False) + with self.assertRaises(self.queue.ShutDown): + q.get(True, 1.0) + + def test_shutdown_all_methods_in_one_thread(self): + return self._shutdown_all_methods_in_one_thread(False) + + def test_shutdown_immediate_all_methods_in_one_thread(self): + return self._shutdown_all_methods_in_one_thread(True) + + def _write_msg_thread(self, q, n, results, + i_when_exec_shutdown, event_shutdown, + barrier_start): + # All `write_msg_threads` + # put several items into the queue. + for i in range(0, i_when_exec_shutdown//2): + q.put((i, 'LOYD')) + # Wait for the barrier to be complete. + barrier_start.wait() + + for i in range(i_when_exec_shutdown//2, n): + try: + q.put((i, "YDLO")) + except self.queue.ShutDown: + results.append(False) + break + + # Trigger queue shutdown. + if i == i_when_exec_shutdown: + # Only one thread should call shutdown(). + if not event_shutdown.is_set(): + event_shutdown.set() + results.append(True) + + def _read_msg_thread(self, q, results, barrier_start): + # Get at least one item. + q.get(True) + q.task_done() + # Wait for the barrier to be complete. + barrier_start.wait() + while True: + try: + q.get(False) + q.task_done() + except self.queue.ShutDown: + results.append(True) + break + except self.queue.Empty: + pass + + def _shutdown_thread(self, q, results, event_end, immediate): + event_end.wait() + q.shutdown(immediate) + results.append(q.qsize() == 0) + + def _join_thread(self, q, barrier_start): + # Wait for the barrier to be complete. + barrier_start.wait() + q.join() + + def _shutdown_all_methods_in_many_threads(self, immediate): + # Run a 'multi-producers/consumers queue' use case, + # with enough items into the queue. + # When shutdown, all running threads will be joined. + q = self.type2test() + ps = [] + res_puts = [] + res_gets = [] + res_shutdown = [] + write_threads = 4 + read_threads = 6 + join_threads = 2 + nb_msgs = 1024*64 + nb_msgs_w = nb_msgs // write_threads + when_exec_shutdown = nb_msgs_w // 2 + # Use of a Barrier to ensure that + # - all write threads put all their items into the queue, + # - all read thread get at least one item from the queue, + # and keep on running until shutdown. + # The join thread is started only when shutdown is immediate. + nparties = write_threads + read_threads + if immediate: + nparties += join_threads + barrier_start = threading.Barrier(nparties) + ev_exec_shutdown = threading.Event() + lprocs = [ + (self._write_msg_thread, write_threads, (q, nb_msgs_w, res_puts, + when_exec_shutdown, ev_exec_shutdown, + barrier_start)), + (self._read_msg_thread, read_threads, (q, res_gets, barrier_start)), + (self._shutdown_thread, 1, (q, res_shutdown, ev_exec_shutdown, immediate)), + ] + if immediate: + lprocs.append((self._join_thread, join_threads, (q, barrier_start))) + # start all threads. + for func, n, args in lprocs: + for i in range(n): + ps.append(threading.Thread(target=func, args=args)) + ps[-1].start() + for thread in ps: + thread.join() + + self.assertTrue(True in res_puts) + self.assertEqual(res_gets.count(True), read_threads) + if immediate: + self.assertListEqual(res_shutdown, [True]) + self.assertTrue(q.empty()) + + def test_shutdown_all_methods_in_many_threads(self): + return self._shutdown_all_methods_in_many_threads(False) + + def test_shutdown_immediate_all_methods_in_many_threads(self): + return self._shutdown_all_methods_in_many_threads(True) + + def _get(self, q, go, results, shutdown=False): + go.wait() + try: + msg = q.get() + results.append(not shutdown) + return not shutdown + except self.queue.ShutDown: + results.append(shutdown) + return shutdown + + def _get_shutdown(self, q, go, results): + return self._get(q, go, results, True) + + def _get_task_done(self, q, go, results): + go.wait() + try: + msg = q.get() + q.task_done() + results.append(True) + return msg + except self.queue.ShutDown: + results.append(False) + return False + + def _put(self, q, msg, go, results, shutdown=False): + go.wait() + try: + q.put(msg) + results.append(not shutdown) + return not shutdown + except self.queue.ShutDown: + results.append(shutdown) + return shutdown + + def _put_shutdown(self, q, msg, go, results): + return self._put(q, msg, go, results, True) + + def _join(self, q, results, shutdown=False): + try: + q.join() + results.append(not shutdown) + return not shutdown + except self.queue.ShutDown: + results.append(shutdown) + return shutdown + + def _join_shutdown(self, q, results): + return self._join(q, results, True) + + def _shutdown_get(self, immediate): + q = self.type2test(2) + results = [] + go = threading.Event() + q.put("Y") + q.put("D") + # queue full + + if immediate: + thrds = ( + (self._get_shutdown, (q, go, results)), + (self._get_shutdown, (q, go, results)), + ) + else: + thrds = ( + # on shutdown(immediate=False) + # one of these threads should raise Shutdown + (self._get, (q, go, results)), + (self._get, (q, go, results)), + (self._get, (q, go, results)), + ) + threads = [] + for func, params in thrds: + threads.append(threading.Thread(target=func, args=params)) + threads[-1].start() + q.shutdown(immediate) + go.set() + for t in threads: + t.join() + if immediate: + self.assertListEqual(results, [True, True]) + else: + self.assertListEqual(sorted(results), [False] + [True]*(len(thrds)-1)) + + def test_shutdown_get(self): + return self._shutdown_get(False) + + def test_shutdown_immediate_get(self): + return self._shutdown_get(True) + + def _shutdown_put(self, immediate): + q = self.type2test(2) + results = [] + go = threading.Event() + q.put("Y") + q.put("D") + # queue fulled + + thrds = ( + (self._put_shutdown, (q, "E", go, results)), + (self._put_shutdown, (q, "W", go, results)), + ) + threads = [] + for func, params in thrds: + threads.append(threading.Thread(target=func, args=params)) + threads[-1].start() + q.shutdown() + go.set() + for t in threads: + t.join() + + self.assertEqual(results, [True]*len(thrds)) + + def test_shutdown_put(self): + return self._shutdown_put(False) + + def test_shutdown_immediate_put(self): + return self._shutdown_put(True) + + def _shutdown_join(self, immediate): + q = self.type2test() + results = [] + q.put("Y") + go = threading.Event() + nb = q.qsize() + + thrds = ( + (self._join, (q, results)), + (self._join, (q, results)), + ) + threads = [] + for func, params in thrds: + threads.append(threading.Thread(target=func, args=params)) + threads[-1].start() + if not immediate: + res = [] + for i in range(nb): + threads.append(threading.Thread(target=self._get_task_done, args=(q, go, res))) + threads[-1].start() + q.shutdown(immediate) + go.set() + for t in threads: + t.join() + + self.assertEqual(results, [True]*len(thrds)) + + def test_shutdown_immediate_join(self): + return self._shutdown_join(True) + + def test_shutdown_join(self): + return self._shutdown_join(False) + + def _shutdown_put_join(self, immediate): + q = self.type2test(2) + results = [] + go = threading.Event() + q.put("Y") + # queue not fulled + + thrds = ( + (self._put_shutdown, (q, "E", go, results)), + (self._join, (q, results)), + ) + threads = [] + for func, params in thrds: + threads.append(threading.Thread(target=func, args=params)) + threads[-1].start() + self.assertEqual(q.unfinished_tasks, 1) + + q.shutdown(immediate) + go.set() + + if immediate: + with self.assertRaises(self.queue.ShutDown): + q.get_nowait() + else: + result = q.get() + self.assertEqual(result, "Y") + q.task_done() + + for t in threads: + t.join() + + self.assertEqual(results, [True]*len(thrds)) + + def test_shutdown_immediate_put_join(self): + return self._shutdown_put_join(True) + + def test_shutdown_put_join(self): + return self._shutdown_put_join(False) + + def test_shutdown_get_task_done_join(self): + q = self.type2test(2) + results = [] + go = threading.Event() + q.put("Y") + q.put("D") + self.assertEqual(q.unfinished_tasks, q.qsize()) + + thrds = ( + (self._get_task_done, (q, go, results)), + (self._get_task_done, (q, go, results)), + (self._join, (q, results)), + (self._join, (q, results)), + ) + threads = [] + for func, params in thrds: + threads.append(threading.Thread(target=func, args=params)) + threads[-1].start() + go.set() + q.shutdown(False) + for t in threads: + t.join() + + self.assertEqual(results, [True]*len(thrds)) + + def test_shutdown_pending_get(self): + def get(): + try: + results.append(q.get()) + except Exception as e: + results.append(e) + + q = self.type2test() + results = [] + get_thread = threading.Thread(target=get) + get_thread.start() + q.shutdown(immediate=False) + get_thread.join(timeout=10.0) + self.assertFalse(get_thread.is_alive()) + self.assertEqual(len(results), 1) + self.assertIsInstance(results[0], self.queue.ShutDown) + + class QueueTest(BaseQueueTestMixin): def setUp(self): @@ -289,6 +704,7 @@ class CPriorityQueueTest(PriorityQueueTest, unittest.TestCase): # A Queue subclass that can provoke failure at a moment's notice :) class FailingQueueException(Exception): pass + class FailingQueueTest(BlockingTestMixin): def setUp(self): diff --git a/Lib/test/test_random.py b/Lib/test/test_random.py index 4bf00d5dbb..2cceaea244 100644 --- a/Lib/test/test_random.py +++ b/Lib/test/test_random.py @@ -22,8 +22,6 @@ def randomlist(self, n): """Helper function to make a list of random numbers""" return [self.gen.random() for i in range(n)] - # TODO: RUSTPYTHON AttributeError: 'super' object has no attribute 'getstate' - @unittest.expectedFailure def test_autoseed(self): self.gen.seed() state1 = self.gen.getstate() @@ -32,8 +30,6 @@ def test_autoseed(self): state2 = self.gen.getstate() self.assertNotEqual(state1, state2) - # TODO: RUSTPYTHON AttributeError: 'super' object has no attribute 'getstate' - @unittest.expectedFailure def test_saverestore(self): N = 1000 self.gen.seed() @@ -60,7 +56,6 @@ def __hash__(self): self.assertRaises(TypeError, self.gen.seed, 1, 2, 3, 4) self.assertRaises(TypeError, type(self.gen), []) - @unittest.skip("TODO: RUSTPYTHON, TypeError: Expected type 'bytes', not 'bytearray'") def test_seed_no_mutate_bug_44018(self): a = bytearray(b'1234') self.gen.seed(a) @@ -386,8 +381,6 @@ def test_getrandbits(self): self.assertRaises(ValueError, self.gen.getrandbits, -1) self.assertRaises(TypeError, self.gen.getrandbits, 10.1) - # TODO: RUSTPYTHON AttributeError: 'super' object has no attribute 'getstate' - @unittest.expectedFailure def test_pickling(self): for proto in range(pickle.HIGHEST_PROTOCOL + 1): state = pickle.dumps(self.gen, proto) @@ -396,8 +389,6 @@ def test_pickling(self): restoredseq = [newgen.random() for i in range(10)] self.assertEqual(origseq, restoredseq) - # TODO: RUSTPYTHON AttributeError: 'super' object has no attribute 'getstate' - @unittest.expectedFailure def test_bug_1727780(self): # verify that version-2-pickles can be loaded # fine, whether they are created on 32-bit or 64-bit @@ -509,50 +500,44 @@ def test_randrange_nonunit_step(self): self.assertEqual(rint, 0) def test_randrange_errors(self): - raises = partial(self.assertRaises, ValueError, self.gen.randrange) + raises_value_error = partial(self.assertRaises, ValueError, self.gen.randrange) + raises_type_error = partial(self.assertRaises, TypeError, self.gen.randrange) + # Empty range - raises(3, 3) - raises(-721) - raises(0, 100, -12) - # Non-integer start/stop - self.assertWarns(DeprecationWarning, raises, 3.14159) - self.assertWarns(DeprecationWarning, self.gen.randrange, 3.0) - self.assertWarns(DeprecationWarning, self.gen.randrange, Fraction(3, 1)) - self.assertWarns(DeprecationWarning, raises, '3') - self.assertWarns(DeprecationWarning, raises, 0, 2.71828) - self.assertWarns(DeprecationWarning, self.gen.randrange, 0, 2.0) - self.assertWarns(DeprecationWarning, self.gen.randrange, 0, Fraction(2, 1)) - self.assertWarns(DeprecationWarning, raises, 0, '2') - # Zero and non-integer step - raises(0, 42, 0) - self.assertWarns(DeprecationWarning, raises, 0, 42, 0.0) - self.assertWarns(DeprecationWarning, raises, 0, 0, 0.0) - self.assertWarns(DeprecationWarning, raises, 0, 42, 3.14159) - self.assertWarns(DeprecationWarning, self.gen.randrange, 0, 42, 3.0) - self.assertWarns(DeprecationWarning, self.gen.randrange, 0, 42, Fraction(3, 1)) - self.assertWarns(DeprecationWarning, raises, 0, 42, '3') - self.assertWarns(DeprecationWarning, self.gen.randrange, 0, 42, 1.0) - self.assertWarns(DeprecationWarning, raises, 0, 0, 1.0) - - def test_randrange_argument_handling(self): - randrange = self.gen.randrange - with self.assertWarns(DeprecationWarning): - randrange(10.0, 20, 2) - with self.assertWarns(DeprecationWarning): - randrange(10, 20.0, 2) - with self.assertWarns(DeprecationWarning): - randrange(10, 20, 1.0) - with self.assertWarns(DeprecationWarning): - randrange(10, 20, 2.0) - with self.assertWarns(DeprecationWarning): - with self.assertRaises(ValueError): - randrange(10.5) - with self.assertWarns(DeprecationWarning): - with self.assertRaises(ValueError): - randrange(10, 20.5) - with self.assertWarns(DeprecationWarning): - with self.assertRaises(ValueError): - randrange(10, 20, 1.5) + raises_value_error(3, 3) + raises_value_error(-721) + raises_value_error(0, 100, -12) + + # Zero step + raises_value_error(0, 42, 0) + raises_type_error(0, 42, 0.0) + raises_type_error(0, 0, 0.0) + + # Non-integer stop + raises_type_error(3.14159) + raises_type_error(3.0) + raises_type_error(Fraction(3, 1)) + raises_type_error('3') + raises_type_error(0, 2.71827) + raises_type_error(0, 2.0) + raises_type_error(0, Fraction(2, 1)) + raises_type_error(0, '2') + raises_type_error(0, 2.71827, 2) + + # Non-integer start + raises_type_error(2.71827, 5) + raises_type_error(2.0, 5) + raises_type_error(Fraction(2, 1), 5) + raises_type_error('2', 5) + raises_type_error(2.71827, 5, 2) + + # Non-integer step + raises_type_error(0, 42, 3.14159) + raises_type_error(0, 42, 3.0) + raises_type_error(0, 42, Fraction(3, 1)) + raises_type_error(0, 42, '3') + raises_type_error(0, 42, 1.0) + raises_type_error(0, 0, 1.0) def test_randrange_step(self): # bpo-42772: When stop is None, the step argument was being ignored. @@ -606,11 +591,6 @@ def test_bug_42008(self): class MersenneTwister_TestBasicOps(TestBasicOps, unittest.TestCase): gen = random.Random() - # TODO: RUSTPYTHON, TypeError: Expected type 'bytes', not 'bytearray' - @unittest.expectedFailure - def test_seed_no_mutate_bug_44018(self): # TODO: RUSTPYTHON, remove when this passes - super().test_seed_no_mutate_bug_44018() # TODO: RUSTPYTHON, remove when this passes - def test_guaranteed_stable(self): # These sequences are guaranteed to stay the same across versions of python self.gen.seed(3456147, version=1) @@ -681,8 +661,6 @@ def test_bug_31482(self): def test_setstate_first_arg(self): self.assertRaises(ValueError, self.gen.setstate, (1, None, None)) - # TODO: RUSTPYTHON AttributeError: 'super' object has no attribute 'getstate' - @unittest.expectedFailure def test_setstate_middle_arg(self): start_state = self.gen.getstate() # Wrong type, s/b tuple @@ -1018,8 +996,6 @@ def gamma(z, sqrt2pi=(2.0*pi)**0.5): ]) class TestDistributions(unittest.TestCase): - # TODO: RUSTPYTHON ValueError: math domain error - @unittest.expectedFailure def test_zeroinputs(self): # Verify that distributions can handle a series of zero inputs' g = random.Random() @@ -1027,6 +1003,7 @@ def test_zeroinputs(self): g.random = x[:].pop; g.uniform(1,10) g.random = x[:].pop; g.paretovariate(1.0) g.random = x[:].pop; g.expovariate(1.0) + g.random = x[:].pop; g.expovariate() g.random = x[:].pop; g.weibullvariate(1.0, 1.0) g.random = x[:].pop; g.vonmisesvariate(1.0, 1.0) g.random = x[:].pop; g.normalvariate(0.0, 1.0) @@ -1084,6 +1061,9 @@ def test_constant(self): (g.lognormvariate, (0.0, 0.0), 1.0), (g.lognormvariate, (-float('inf'), 0.0), 0.0), (g.normalvariate, (10.0, 0.0), 10.0), + (g.binomialvariate, (0, 0.5), 0), + (g.binomialvariate, (10, 0.0), 0), + (g.binomialvariate, (10, 1.0), 10), (g.paretovariate, (float('inf'),), 1.0), (g.weibullvariate, (10.0, float('inf')), 10.0), (g.weibullvariate, (0.0, 10.0), 0.0), @@ -1091,6 +1071,59 @@ def test_constant(self): for i in range(N): self.assertEqual(variate(*args), expected) + def test_binomialvariate(self): + B = random.binomialvariate + + # Cover all the code paths + with self.assertRaises(ValueError): + B(n=-1) # Negative n + with self.assertRaises(ValueError): + B(n=1, p=-0.5) # Negative p + with self.assertRaises(ValueError): + B(n=1, p=1.5) # p > 1.0 + self.assertEqual(B(10, 0.0), 0) # p == 0.0 + self.assertEqual(B(10, 1.0), 10) # p == 1.0 + self.assertTrue(B(1, 0.3) in {0, 1}) # n == 1 fast path + self.assertTrue(B(1, 0.9) in {0, 1}) # n == 1 fast path + self.assertTrue(B(1, 0.0) in {0}) # n == 1 fast path + self.assertTrue(B(1, 1.0) in {1}) # n == 1 fast path + + # BG method p <= 0.5 and n*p=1.25 + self.assertTrue(B(5, 0.25) in set(range(6))) + + # BG method p >= 0.5 and n*(1-p)=1.25 + self.assertTrue(B(5, 0.75) in set(range(6))) + + # BTRS method p <= 0.5 and n*p=25 + self.assertTrue(B(100, 0.25) in set(range(101))) + + # BTRS method p > 0.5 and n*(1-p)=25 + self.assertTrue(B(100, 0.75) in set(range(101))) + + # Statistical tests chosen such that they are + # exceedingly unlikely to ever fail for correct code. + + # BG code path + # Expected dist: [31641, 42188, 21094, 4688, 391] + c = Counter(B(4, 0.25) for i in range(100_000)) + self.assertTrue(29_641 <= c[0] <= 33_641, c) + self.assertTrue(40_188 <= c[1] <= 44_188) + self.assertTrue(19_094 <= c[2] <= 23_094) + self.assertTrue(2_688 <= c[3] <= 6_688) + self.assertEqual(set(c), {0, 1, 2, 3, 4}) + + # BTRS code path + # Sum of c[20], c[21], c[22], c[23], c[24] expected to be 36,214 + c = Counter(B(100, 0.25) for i in range(100_000)) + self.assertTrue(34_214 <= c[20]+c[21]+c[22]+c[23]+c[24] <= 38_214) + self.assertTrue(set(c) <= set(range(101))) + self.assertEqual(c.total(), 100_000) + + # Demonstrate the BTRS works for huge values of n + self.assertTrue(19_000_000 <= B(100_000_000, 0.2) <= 21_000_000) + self.assertTrue(89_000_000 <= B(100_000_000, 0.9) <= 91_000_000) + + def test_von_mises_range(self): # Issue 17149: von mises variates were not consistently in the # range [0, 2*PI]. @@ -1233,15 +1266,6 @@ def test_betavariate_return_zero(self, gammavariate_mock): class TestRandomSubclassing(unittest.TestCase): - # TODO: RUSTPYTHON Unexpected keyword argument newarg - @unittest.expectedFailure - def test_random_subclass_with_kwargs(self): - # SF bug #1486663 -- this used to erroneously raise a TypeError - class Subclass(random.Random): - def __init__(self, newarg=None): - random.Random.__init__(self) - Subclass(newarg=1) - def test_subclasses_overriding_methods(self): # Subclasses with an overridden random, but only the original # getrandbits method should not rely on getrandbits in for randrange, diff --git a/Lib/test/test_re.py b/Lib/test/test_re.py index a060a3deef..3c0b6af3c6 100644 --- a/Lib/test/test_re.py +++ b/Lib/test/test_re.py @@ -854,8 +854,6 @@ def test_string_boundaries(self): # Can match around the whitespace. self.assertEqual(len(re.findall(r"\B", " ")), 2) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_bigcharset(self): self.assertEqual(re.match("([\u2222\u2223])", "\u2222").group(1), "\u2222") @@ -2233,6 +2231,7 @@ def test_bug_40736(self): with self.assertRaisesRegex(TypeError, "got 'type'"): re.search("x*", type) + @unittest.skip("TODO: RUSTPYTHON: flaky, improve perf") @requires_resource('cpu') def test_search_anchor_at_beginning(self): s = 'x'*10**7 diff --git a/Lib/test/test_regrtest.py b/Lib/test/test_regrtest.py index aab2d9f7ae..fc56ec4afc 100644 --- a/Lib/test/test_regrtest.py +++ b/Lib/test/test_regrtest.py @@ -945,7 +945,6 @@ def test_leak(self): """) self.check_leak(code, 'file descriptors') - @unittest.expectedFailureIfWindows('TODO: RUSTPYTHON Windows') def test_list_tests(self): # test --list-tests tests = [self.create_test() for i in range(5)] @@ -953,7 +952,6 @@ def test_list_tests(self): self.assertEqual(output.rstrip().splitlines(), tests) - @unittest.expectedFailureIfWindows('TODO: RUSTPYTHON Windows') def test_list_cases(self): # test --list-cases code = textwrap.dedent(""" diff --git a/Lib/test/test_repl.py b/Lib/test/test_repl.py index a63c1213c6..03bf8d8b54 100644 --- a/Lib/test/test_repl.py +++ b/Lib/test/test_repl.py @@ -92,8 +92,6 @@ def test_multiline_string_parsing(self): output = kill_python(p) self.assertEqual(p.returncode, 0) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_close_stdin(self): user_input = dedent(''' import os diff --git a/Lib/test/test_reprlib.py b/Lib/test/test_reprlib.py index 611fb9d1e4..f84dec1ed9 100644 --- a/Lib/test/test_reprlib.py +++ b/Lib/test/test_reprlib.py @@ -9,6 +9,7 @@ import importlib import importlib.util import unittest +import textwrap from test.support import verbose from test.support.os_helper import create_empty_file @@ -25,6 +26,29 @@ def nestedTuple(nesting): class ReprTests(unittest.TestCase): + def test_init_kwargs(self): + example_kwargs = { + "maxlevel": 101, + "maxtuple": 102, + "maxlist": 103, + "maxarray": 104, + "maxdict": 105, + "maxset": 106, + "maxfrozenset": 107, + "maxdeque": 108, + "maxstring": 109, + "maxlong": 110, + "maxother": 111, + "fillvalue": "x" * 112, + "indent": "x" * 113, + } + r1 = Repr() + for attr, val in example_kwargs.items(): + setattr(r1, attr, val) + r2 = Repr(**example_kwargs) + for attr in example_kwargs: + self.assertEqual(getattr(r1, attr), getattr(r2, attr), msg=attr) + def test_string(self): eq = self.assertEqual eq(r("abc"), "'abc'") @@ -51,6 +75,15 @@ def test_tuple(self): expected = repr(t3)[:-2] + "...)" eq(r2.repr(t3), expected) + # modified fillvalue: + r3 = Repr() + r3.fillvalue = '+++' + r3.maxtuple = 2 + expected = repr(t3)[:-2] + "+++)" + eq(r3.repr(t3), expected) + + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_container(self): from array import array from collections import deque @@ -223,6 +256,382 @@ def test_unsortable(self): r(y) r(z) + def test_valid_indent(self): + test_cases = [ + { + 'object': (), + 'tests': ( + (dict(indent=None), '()'), + (dict(indent=False), '()'), + (dict(indent=True), '()'), + (dict(indent=0), '()'), + (dict(indent=1), '()'), + (dict(indent=4), '()'), + (dict(indent=4, maxlevel=2), '()'), + (dict(indent=''), '()'), + (dict(indent='-->'), '()'), + (dict(indent='....'), '()'), + ), + }, + { + 'object': '', + 'tests': ( + (dict(indent=None), "''"), + (dict(indent=False), "''"), + (dict(indent=True), "''"), + (dict(indent=0), "''"), + (dict(indent=1), "''"), + (dict(indent=4), "''"), + (dict(indent=4, maxlevel=2), "''"), + (dict(indent=''), "''"), + (dict(indent='-->'), "''"), + (dict(indent='....'), "''"), + ), + }, + { + 'object': [1, 'spam', {'eggs': True, 'ham': []}], + 'tests': ( + (dict(indent=None), '''\ + [1, 'spam', {'eggs': True, 'ham': []}]'''), + (dict(indent=False), '''\ + [ + 1, + 'spam', + { + 'eggs': True, + 'ham': [], + }, + ]'''), + (dict(indent=True), '''\ + [ + 1, + 'spam', + { + 'eggs': True, + 'ham': [], + }, + ]'''), + (dict(indent=0), '''\ + [ + 1, + 'spam', + { + 'eggs': True, + 'ham': [], + }, + ]'''), + (dict(indent=1), '''\ + [ + 1, + 'spam', + { + 'eggs': True, + 'ham': [], + }, + ]'''), + (dict(indent=4), '''\ + [ + 1, + 'spam', + { + 'eggs': True, + 'ham': [], + }, + ]'''), + (dict(indent=4, maxlevel=2), '''\ + [ + 1, + 'spam', + { + 'eggs': True, + 'ham': [], + }, + ]'''), + (dict(indent=''), '''\ + [ + 1, + 'spam', + { + 'eggs': True, + 'ham': [], + }, + ]'''), + (dict(indent='-->'), '''\ + [ + -->1, + -->'spam', + -->{ + -->-->'eggs': True, + -->-->'ham': [], + -->}, + ]'''), + (dict(indent='....'), '''\ + [ + ....1, + ....'spam', + ....{ + ........'eggs': True, + ........'ham': [], + ....}, + ]'''), + ), + }, + { + 'object': { + 1: 'two', + b'three': [ + (4.5, 6.7), + [set((8, 9)), frozenset((10, 11))], + ], + }, + 'tests': ( + (dict(indent=None), '''\ + {1: 'two', b'three': [(4.5, 6.7), [{8, 9}, frozenset({10, 11})]]}'''), + (dict(indent=False), '''\ + { + 1: 'two', + b'three': [ + ( + 4.5, + 6.7, + ), + [ + { + 8, + 9, + }, + frozenset({ + 10, + 11, + }), + ], + ], + }'''), + (dict(indent=True), '''\ + { + 1: 'two', + b'three': [ + ( + 4.5, + 6.7, + ), + [ + { + 8, + 9, + }, + frozenset({ + 10, + 11, + }), + ], + ], + }'''), + (dict(indent=0), '''\ + { + 1: 'two', + b'three': [ + ( + 4.5, + 6.7, + ), + [ + { + 8, + 9, + }, + frozenset({ + 10, + 11, + }), + ], + ], + }'''), + (dict(indent=1), '''\ + { + 1: 'two', + b'three': [ + ( + 4.5, + 6.7, + ), + [ + { + 8, + 9, + }, + frozenset({ + 10, + 11, + }), + ], + ], + }'''), + (dict(indent=4), '''\ + { + 1: 'two', + b'three': [ + ( + 4.5, + 6.7, + ), + [ + { + 8, + 9, + }, + frozenset({ + 10, + 11, + }), + ], + ], + }'''), + (dict(indent=4, maxlevel=2), '''\ + { + 1: 'two', + b'three': [ + (...), + [...], + ], + }'''), + (dict(indent=''), '''\ + { + 1: 'two', + b'three': [ + ( + 4.5, + 6.7, + ), + [ + { + 8, + 9, + }, + frozenset({ + 10, + 11, + }), + ], + ], + }'''), + (dict(indent='-->'), '''\ + { + -->1: 'two', + -->b'three': [ + -->-->( + -->-->-->4.5, + -->-->-->6.7, + -->-->), + -->-->[ + -->-->-->{ + -->-->-->-->8, + -->-->-->-->9, + -->-->-->}, + -->-->-->frozenset({ + -->-->-->-->10, + -->-->-->-->11, + -->-->-->}), + -->-->], + -->], + }'''), + (dict(indent='....'), '''\ + { + ....1: 'two', + ....b'three': [ + ........( + ............4.5, + ............6.7, + ........), + ........[ + ............{ + ................8, + ................9, + ............}, + ............frozenset({ + ................10, + ................11, + ............}), + ........], + ....], + }'''), + ), + }, + ] + for test_case in test_cases: + with self.subTest(test_object=test_case['object']): + for repr_settings, expected_repr in test_case['tests']: + with self.subTest(repr_settings=repr_settings): + r = Repr() + for attribute, value in repr_settings.items(): + setattr(r, attribute, value) + resulting_repr = r.repr(test_case['object']) + expected_repr = textwrap.dedent(expected_repr) + self.assertEqual(resulting_repr, expected_repr) + + def test_invalid_indent(self): + test_object = [1, 'spam', {'eggs': True, 'ham': []}] + test_cases = [ + (-1, (ValueError, '[Nn]egative|[Pp]ositive')), + (-4, (ValueError, '[Nn]egative|[Pp]ositive')), + ((), (TypeError, None)), + ([], (TypeError, None)), + ((4,), (TypeError, None)), + ([4,], (TypeError, None)), + (object(), (TypeError, None)), + ] + for indent, (expected_error, expected_msg) in test_cases: + with self.subTest(indent=indent): + r = Repr() + r.indent = indent + expected_msg = expected_msg or f'{type(indent)}' + with self.assertRaisesRegex(expected_error, expected_msg): + r.repr(test_object) + + def test_shadowed_stdlib_array(self): + # Issue #113570: repr() should not be fooled by an array + class array: + def __repr__(self): + return "not array.array" + + self.assertEqual(r(array()), "not array.array") + + def test_shadowed_builtin(self): + # Issue #113570: repr() should not be fooled + # by a shadowed builtin function + class list: + def __repr__(self): + return "not builtins.list" + + self.assertEqual(r(list()), "not builtins.list") + + def test_custom_repr(self): + class MyRepr(Repr): + + def repr_TextIOWrapper(self, obj, level): + if obj.name in {'', '', ''}: + return obj.name + return repr(obj) + + aRepr = MyRepr() + self.assertEqual(aRepr.repr(sys.stdin), "") + + def test_custom_repr_class_with_spaces(self): + class TypeWithSpaces: + pass + + t = TypeWithSpaces() + type(t).__name__ = "type with spaces" + self.assertEqual(type(t).__name__, "type with spaces") + + class MyRepr(Repr): + def repr_type_with_spaces(self, obj, level): + return "Type With Spaces" + + + aRepr = MyRepr() + self.assertEqual(aRepr.repr(t), "Type With Spaces") + def write_file(path, text): with open(path, 'w', encoding='ASCII') as fp: fp.write(text) @@ -408,5 +817,27 @@ def test_assigned_attributes(self): for name in assigned: self.assertIs(getattr(wrapper, name), getattr(wrapped, name)) + def test__wrapped__(self): + class X: + def __repr__(self): + return 'X()' + f = __repr__ # save reference to check it later + __repr__ = recursive_repr()(__repr__) + + self.assertIs(X.f, X.__repr__.__wrapped__) + + # TODO: RUSTPYTHON: AttributeError: 'TypeVar' object has no attribute '__name__' + @unittest.expectedFailure + def test__type_params__(self): + class My: + @recursive_repr() + def __repr__[T: str](self, default: T = '') -> str: + return default + + type_params = My().__repr__.__type_params__ + self.assertEqual(len(type_params), 1) + self.assertEqual(type_params[0].__name__, 'T') + self.assertEqual(type_params[0].__bound__, str) + if __name__ == "__main__": unittest.main() diff --git a/Lib/test/test_sched.py b/Lib/test/test_sched.py index 7ae7baae85..eb52ac7983 100644 --- a/Lib/test/test_sched.py +++ b/Lib/test/test_sched.py @@ -58,6 +58,7 @@ def test_enterabs(self): scheduler.run() self.assertEqual(l, [0.01, 0.02, 0.03, 0.04, 0.05]) + @threading_helper.requires_working_threading() def test_enter_concurrent(self): q = queue.Queue() fun = q.put @@ -91,10 +92,23 @@ def test_priority(self): l = [] fun = lambda x: l.append(x) scheduler = sched.scheduler(time.time, time.sleep) - for priority in [1, 2, 3, 4, 5]: - z = scheduler.enterabs(0.01, priority, fun, (priority,)) - scheduler.run() - self.assertEqual(l, [1, 2, 3, 4, 5]) + + cases = [ + ([1, 2, 3, 4, 5], [1, 2, 3, 4, 5]), + ([5, 4, 3, 2, 1], [1, 2, 3, 4, 5]), + ([2, 5, 3, 1, 4], [1, 2, 3, 4, 5]), + ([1, 2, 3, 2, 1], [1, 1, 2, 2, 3]), + ] + for priorities, expected in cases: + with self.subTest(priorities=priorities, expected=expected): + for priority in priorities: + scheduler.enterabs(0.01, priority, fun, (priority,)) + scheduler.run() + self.assertEqual(l, expected) + + # Cleanup: + self.assertTrue(scheduler.empty()) + l.clear() def test_cancel(self): l = [] @@ -111,6 +125,7 @@ def test_cancel(self): scheduler.run() self.assertEqual(l, [0.02, 0.03, 0.04]) + @threading_helper.requires_working_threading() def test_cancel_concurrent(self): q = queue.Queue() fun = q.put diff --git a/Lib/test/test_set.py b/Lib/test/test_set.py index 523c39ce68..75447336e4 100644 --- a/Lib/test/test_set.py +++ b/Lib/test/test_set.py @@ -728,15 +728,7 @@ def powerset(s): for i in range(len(s)+1): yield from map(frozenset, itertools.combinations(s, i)) - # TODO: RUSTPYTHON - # The original test has: - # for n in range(18): - # Due to general performance overhead, hashing a frozenset takes - # about 50 times longer than in CPython. This test amplifies that - # exponentially, so the best we can do here reasonably is 13. - # Even if the internal hash function did nothing, it would still be - # about 40 times slower than CPython. - for n in range(13): + for n in range(18): t = 2 ** n mask = t - 1 for nums in (range, zf_range): diff --git a/Lib/test/test_shutil.py b/Lib/test/test_shutil.py index 16416547c1..b64ccb37a5 100644 --- a/Lib/test/test_shutil.py +++ b/Lib/test/test_shutil.py @@ -2000,13 +2000,9 @@ def check_unpack_tarball(self, format): ('Python 3.14', DeprecationWarning)): self.check_unpack_archive(format) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_unpack_archive_tar(self): self.check_unpack_tarball('tar') - # TODO: RUSTPYTHON - @unittest.expectedFailure @support.requires_zlib() def test_unpack_archive_gztar(self): self.check_unpack_tarball('gztar') diff --git a/Lib/test/test_smtpd.py b/Lib/test/test_smtpd.py deleted file mode 100644 index d2e150d535..0000000000 --- a/Lib/test/test_smtpd.py +++ /dev/null @@ -1,1018 +0,0 @@ -import unittest -import textwrap -from test import support, mock_socket -from test.support import socket_helper -from test.support import warnings_helper -import socket -import io - -import warnings -with warnings.catch_warnings(): - warnings.simplefilter('ignore', DeprecationWarning) - import smtpd - import asyncore - - -class DummyServer(smtpd.SMTPServer): - def __init__(self, *args, **kwargs): - smtpd.SMTPServer.__init__(self, *args, **kwargs) - self.messages = [] - if self._decode_data: - self.return_status = 'return status' - else: - self.return_status = b'return status' - - def process_message(self, peer, mailfrom, rcpttos, data, **kw): - self.messages.append((peer, mailfrom, rcpttos, data)) - if data == self.return_status: - return '250 Okish' - if 'mail_options' in kw and 'SMTPUTF8' in kw['mail_options']: - return '250 SMTPUTF8 message okish' - - -class DummyDispatcherBroken(Exception): - pass - - -class BrokenDummyServer(DummyServer): - def listen(self, num): - raise DummyDispatcherBroken() - - -class SMTPDServerTest(unittest.TestCase): - def setUp(self): - smtpd.socket = asyncore.socket = mock_socket - - def test_process_message_unimplemented(self): - server = smtpd.SMTPServer((socket_helper.HOST, 0), ('b', 0), - decode_data=True) - conn, addr = server.accept() - channel = smtpd.SMTPChannel(server, conn, addr, decode_data=True) - - def write_line(line): - channel.socket.queue_recv(line) - channel.handle_read() - - write_line(b'HELO example') - write_line(b'MAIL From:eggs@example') - write_line(b'RCPT To:spam@example') - write_line(b'DATA') - self.assertRaises(NotImplementedError, write_line, b'spam\r\n.\r\n') - - def test_decode_data_and_enable_SMTPUTF8_raises(self): - self.assertRaises( - ValueError, - smtpd.SMTPServer, - (socket_helper.HOST, 0), - ('b', 0), - enable_SMTPUTF8=True, - decode_data=True) - - def tearDown(self): - asyncore.close_all() - asyncore.socket = smtpd.socket = socket - - -class DebuggingServerTest(unittest.TestCase): - - def setUp(self): - smtpd.socket = asyncore.socket = mock_socket - - def send_data(self, channel, data, enable_SMTPUTF8=False): - def write_line(line): - channel.socket.queue_recv(line) - channel.handle_read() - write_line(b'EHLO example') - if enable_SMTPUTF8: - write_line(b'MAIL From:eggs@example BODY=8BITMIME SMTPUTF8') - else: - write_line(b'MAIL From:eggs@example') - write_line(b'RCPT To:spam@example') - write_line(b'DATA') - write_line(data) - write_line(b'.') - - def test_process_message_with_decode_data_true(self): - server = smtpd.DebuggingServer((socket_helper.HOST, 0), ('b', 0), - decode_data=True) - conn, addr = server.accept() - channel = smtpd.SMTPChannel(server, conn, addr, decode_data=True) - with support.captured_stdout() as s: - self.send_data(channel, b'From: test\n\nhello\n') - stdout = s.getvalue() - self.assertEqual(stdout, textwrap.dedent("""\ - ---------- MESSAGE FOLLOWS ---------- - From: test - X-Peer: peer-address - - hello - ------------ END MESSAGE ------------ - """)) - - def test_process_message_with_decode_data_false(self): - server = smtpd.DebuggingServer((socket_helper.HOST, 0), ('b', 0)) - conn, addr = server.accept() - channel = smtpd.SMTPChannel(server, conn, addr) - with support.captured_stdout() as s: - self.send_data(channel, b'From: test\n\nh\xc3\xa9llo\xff\n') - stdout = s.getvalue() - self.assertEqual(stdout, textwrap.dedent("""\ - ---------- MESSAGE FOLLOWS ---------- - b'From: test' - b'X-Peer: peer-address' - b'' - b'h\\xc3\\xa9llo\\xff' - ------------ END MESSAGE ------------ - """)) - - def test_process_message_with_enable_SMTPUTF8_true(self): - server = smtpd.DebuggingServer((socket_helper.HOST, 0), ('b', 0), - enable_SMTPUTF8=True) - conn, addr = server.accept() - channel = smtpd.SMTPChannel(server, conn, addr, enable_SMTPUTF8=True) - with support.captured_stdout() as s: - self.send_data(channel, b'From: test\n\nh\xc3\xa9llo\xff\n') - stdout = s.getvalue() - self.assertEqual(stdout, textwrap.dedent("""\ - ---------- MESSAGE FOLLOWS ---------- - b'From: test' - b'X-Peer: peer-address' - b'' - b'h\\xc3\\xa9llo\\xff' - ------------ END MESSAGE ------------ - """)) - - def test_process_SMTPUTF8_message_with_enable_SMTPUTF8_true(self): - server = smtpd.DebuggingServer((socket_helper.HOST, 0), ('b', 0), - enable_SMTPUTF8=True) - conn, addr = server.accept() - channel = smtpd.SMTPChannel(server, conn, addr, enable_SMTPUTF8=True) - with support.captured_stdout() as s: - self.send_data(channel, b'From: test\n\nh\xc3\xa9llo\xff\n', - enable_SMTPUTF8=True) - stdout = s.getvalue() - self.assertEqual(stdout, textwrap.dedent("""\ - ---------- MESSAGE FOLLOWS ---------- - mail options: ['BODY=8BITMIME', 'SMTPUTF8'] - b'From: test' - b'X-Peer: peer-address' - b'' - b'h\\xc3\\xa9llo\\xff' - ------------ END MESSAGE ------------ - """)) - - def tearDown(self): - asyncore.close_all() - asyncore.socket = smtpd.socket = socket - - -class TestFamilyDetection(unittest.TestCase): - def setUp(self): - smtpd.socket = asyncore.socket = mock_socket - - def tearDown(self): - asyncore.close_all() - asyncore.socket = smtpd.socket = socket - - @unittest.skipUnless(socket_helper.IPV6_ENABLED, "IPv6 not enabled") - def test_socket_uses_IPv6(self): - server = smtpd.SMTPServer((socket_helper.HOSTv6, 0), (socket_helper.HOSTv4, 0)) - self.assertEqual(server.socket.family, socket.AF_INET6) - - def test_socket_uses_IPv4(self): - server = smtpd.SMTPServer((socket_helper.HOSTv4, 0), (socket_helper.HOSTv6, 0)) - self.assertEqual(server.socket.family, socket.AF_INET) - - -class TestRcptOptionParsing(unittest.TestCase): - error_response = (b'555 RCPT TO parameters not recognized or not ' - b'implemented\r\n') - - def setUp(self): - smtpd.socket = asyncore.socket = mock_socket - self.old_debugstream = smtpd.DEBUGSTREAM - self.debug = smtpd.DEBUGSTREAM = io.StringIO() - - def tearDown(self): - asyncore.close_all() - asyncore.socket = smtpd.socket = socket - smtpd.DEBUGSTREAM = self.old_debugstream - - def write_line(self, channel, line): - channel.socket.queue_recv(line) - channel.handle_read() - - def test_params_rejected(self): - server = DummyServer((socket_helper.HOST, 0), ('b', 0)) - conn, addr = server.accept() - channel = smtpd.SMTPChannel(server, conn, addr) - self.write_line(channel, b'EHLO example') - self.write_line(channel, b'MAIL from: size=20') - self.write_line(channel, b'RCPT to: foo=bar') - self.assertEqual(channel.socket.last, self.error_response) - - def test_nothing_accepted(self): - server = DummyServer((socket_helper.HOST, 0), ('b', 0)) - conn, addr = server.accept() - channel = smtpd.SMTPChannel(server, conn, addr) - self.write_line(channel, b'EHLO example') - self.write_line(channel, b'MAIL from: size=20') - self.write_line(channel, b'RCPT to: ') - self.assertEqual(channel.socket.last, b'250 OK\r\n') - - -class TestMailOptionParsing(unittest.TestCase): - error_response = (b'555 MAIL FROM parameters not recognized or not ' - b'implemented\r\n') - - def setUp(self): - smtpd.socket = asyncore.socket = mock_socket - self.old_debugstream = smtpd.DEBUGSTREAM - self.debug = smtpd.DEBUGSTREAM = io.StringIO() - - def tearDown(self): - asyncore.close_all() - asyncore.socket = smtpd.socket = socket - smtpd.DEBUGSTREAM = self.old_debugstream - - def write_line(self, channel, line): - channel.socket.queue_recv(line) - channel.handle_read() - - def test_with_decode_data_true(self): - server = DummyServer((socket_helper.HOST, 0), ('b', 0), decode_data=True) - conn, addr = server.accept() - channel = smtpd.SMTPChannel(server, conn, addr, decode_data=True) - self.write_line(channel, b'EHLO example') - for line in [ - b'MAIL from: size=20 SMTPUTF8', - b'MAIL from: size=20 SMTPUTF8 BODY=8BITMIME', - b'MAIL from: size=20 BODY=UNKNOWN', - b'MAIL from: size=20 body=8bitmime', - ]: - self.write_line(channel, line) - self.assertEqual(channel.socket.last, self.error_response) - self.write_line(channel, b'MAIL from: size=20') - self.assertEqual(channel.socket.last, b'250 OK\r\n') - - def test_with_decode_data_false(self): - server = DummyServer((socket_helper.HOST, 0), ('b', 0)) - conn, addr = server.accept() - channel = smtpd.SMTPChannel(server, conn, addr) - self.write_line(channel, b'EHLO example') - for line in [ - b'MAIL from: size=20 SMTPUTF8', - b'MAIL from: size=20 SMTPUTF8 BODY=8BITMIME', - ]: - self.write_line(channel, line) - self.assertEqual(channel.socket.last, self.error_response) - self.write_line( - channel, - b'MAIL from: size=20 SMTPUTF8 BODY=UNKNOWN') - self.assertEqual( - channel.socket.last, - b'501 Error: BODY can only be one of 7BIT, 8BITMIME\r\n') - self.write_line( - channel, b'MAIL from: size=20 body=8bitmime') - self.assertEqual(channel.socket.last, b'250 OK\r\n') - - def test_with_enable_smtputf8_true(self): - server = DummyServer((socket_helper.HOST, 0), ('b', 0), enable_SMTPUTF8=True) - conn, addr = server.accept() - channel = smtpd.SMTPChannel(server, conn, addr, enable_SMTPUTF8=True) - self.write_line(channel, b'EHLO example') - self.write_line( - channel, - b'MAIL from: size=20 body=8bitmime smtputf8') - self.assertEqual(channel.socket.last, b'250 OK\r\n') - - -class SMTPDChannelTest(unittest.TestCase): - def setUp(self): - smtpd.socket = asyncore.socket = mock_socket - self.old_debugstream = smtpd.DEBUGSTREAM - self.debug = smtpd.DEBUGSTREAM = io.StringIO() - self.server = DummyServer((socket_helper.HOST, 0), ('b', 0), - decode_data=True) - conn, addr = self.server.accept() - self.channel = smtpd.SMTPChannel(self.server, conn, addr, - decode_data=True) - - def tearDown(self): - asyncore.close_all() - asyncore.socket = smtpd.socket = socket - smtpd.DEBUGSTREAM = self.old_debugstream - - def write_line(self, line): - self.channel.socket.queue_recv(line) - self.channel.handle_read() - - def test_broken_connect(self): - self.assertRaises( - DummyDispatcherBroken, BrokenDummyServer, - (socket_helper.HOST, 0), ('b', 0), decode_data=True) - - def test_decode_data_and_enable_SMTPUTF8_raises(self): - self.assertRaises( - ValueError, smtpd.SMTPChannel, - self.server, self.channel.conn, self.channel.addr, - enable_SMTPUTF8=True, decode_data=True) - - def test_server_accept(self): - self.server.handle_accept() - - def test_missing_data(self): - self.write_line(b'') - self.assertEqual(self.channel.socket.last, - b'500 Error: bad syntax\r\n') - - def test_EHLO(self): - self.write_line(b'EHLO example') - self.assertEqual(self.channel.socket.last, b'250 HELP\r\n') - - def test_EHLO_bad_syntax(self): - self.write_line(b'EHLO') - self.assertEqual(self.channel.socket.last, - b'501 Syntax: EHLO hostname\r\n') - - def test_EHLO_duplicate(self): - self.write_line(b'EHLO example') - self.write_line(b'EHLO example') - self.assertEqual(self.channel.socket.last, - b'503 Duplicate HELO/EHLO\r\n') - - def test_EHLO_HELO_duplicate(self): - self.write_line(b'EHLO example') - self.write_line(b'HELO example') - self.assertEqual(self.channel.socket.last, - b'503 Duplicate HELO/EHLO\r\n') - - def test_HELO(self): - name = smtpd.socket.getfqdn() - self.write_line(b'HELO example') - self.assertEqual(self.channel.socket.last, - '250 {}\r\n'.format(name).encode('ascii')) - - def test_HELO_EHLO_duplicate(self): - self.write_line(b'HELO example') - self.write_line(b'EHLO example') - self.assertEqual(self.channel.socket.last, - b'503 Duplicate HELO/EHLO\r\n') - - def test_HELP(self): - self.write_line(b'HELP') - self.assertEqual(self.channel.socket.last, - b'250 Supported commands: EHLO HELO MAIL RCPT ' + \ - b'DATA RSET NOOP QUIT VRFY\r\n') - - def test_HELP_command(self): - self.write_line(b'HELP MAIL') - self.assertEqual(self.channel.socket.last, - b'250 Syntax: MAIL FROM:
\r\n') - - def test_HELP_command_unknown(self): - self.write_line(b'HELP SPAM') - self.assertEqual(self.channel.socket.last, - b'501 Supported commands: EHLO HELO MAIL RCPT ' + \ - b'DATA RSET NOOP QUIT VRFY\r\n') - - def test_HELO_bad_syntax(self): - self.write_line(b'HELO') - self.assertEqual(self.channel.socket.last, - b'501 Syntax: HELO hostname\r\n') - - def test_HELO_duplicate(self): - self.write_line(b'HELO example') - self.write_line(b'HELO example') - self.assertEqual(self.channel.socket.last, - b'503 Duplicate HELO/EHLO\r\n') - - def test_HELO_parameter_rejected_when_extensions_not_enabled(self): - self.extended_smtp = False - self.write_line(b'HELO example') - self.write_line(b'MAIL from: SIZE=1234') - self.assertEqual(self.channel.socket.last, - b'501 Syntax: MAIL FROM:
\r\n') - - def test_MAIL_allows_space_after_colon(self): - self.write_line(b'HELO example') - self.write_line(b'MAIL from: ') - self.assertEqual(self.channel.socket.last, - b'250 OK\r\n') - - def test_extended_MAIL_allows_space_after_colon(self): - self.write_line(b'EHLO example') - self.write_line(b'MAIL from: size=20') - self.assertEqual(self.channel.socket.last, - b'250 OK\r\n') - - def test_NOOP(self): - self.write_line(b'NOOP') - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - - def test_HELO_NOOP(self): - self.write_line(b'HELO example') - self.write_line(b'NOOP') - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - - def test_NOOP_bad_syntax(self): - self.write_line(b'NOOP hi') - self.assertEqual(self.channel.socket.last, - b'501 Syntax: NOOP\r\n') - - def test_QUIT(self): - self.write_line(b'QUIT') - self.assertEqual(self.channel.socket.last, b'221 Bye\r\n') - - def test_HELO_QUIT(self): - self.write_line(b'HELO example') - self.write_line(b'QUIT') - self.assertEqual(self.channel.socket.last, b'221 Bye\r\n') - - def test_QUIT_arg_ignored(self): - self.write_line(b'QUIT bye bye') - self.assertEqual(self.channel.socket.last, b'221 Bye\r\n') - - def test_bad_state(self): - self.channel.smtp_state = 'BAD STATE' - self.write_line(b'HELO example') - self.assertEqual(self.channel.socket.last, - b'451 Internal confusion\r\n') - - def test_command_too_long(self): - self.write_line(b'HELO example') - self.write_line(b'MAIL from: ' + - b'a' * self.channel.command_size_limit + - b'@example') - self.assertEqual(self.channel.socket.last, - b'500 Error: line too long\r\n') - - def test_MAIL_command_limit_extended_with_SIZE(self): - self.write_line(b'EHLO example') - fill_len = self.channel.command_size_limit - len('MAIL from:<@example>') - self.write_line(b'MAIL from:<' + - b'a' * fill_len + - b'@example> SIZE=1234') - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - - self.write_line(b'MAIL from:<' + - b'a' * (fill_len + 26) + - b'@example> SIZE=1234') - self.assertEqual(self.channel.socket.last, - b'500 Error: line too long\r\n') - - def test_MAIL_command_rejects_SMTPUTF8_by_default(self): - self.write_line(b'EHLO example') - self.write_line( - b'MAIL from: BODY=8BITMIME SMTPUTF8') - self.assertEqual(self.channel.socket.last[0:1], b'5') - - def test_data_longer_than_default_data_size_limit(self): - # Hack the default so we don't have to generate so much data. - self.channel.data_size_limit = 1048 - self.write_line(b'HELO example') - self.write_line(b'MAIL From:eggs@example') - self.write_line(b'RCPT To:spam@example') - self.write_line(b'DATA') - self.write_line(b'A' * self.channel.data_size_limit + - b'A\r\n.') - self.assertEqual(self.channel.socket.last, - b'552 Error: Too much mail data\r\n') - - def test_MAIL_size_parameter(self): - self.write_line(b'EHLO example') - self.write_line(b'MAIL FROM: SIZE=512') - self.assertEqual(self.channel.socket.last, - b'250 OK\r\n') - - def test_MAIL_invalid_size_parameter(self): - self.write_line(b'EHLO example') - self.write_line(b'MAIL FROM: SIZE=invalid') - self.assertEqual(self.channel.socket.last, - b'501 Syntax: MAIL FROM:
[SP ]\r\n') - - def test_MAIL_RCPT_unknown_parameters(self): - self.write_line(b'EHLO example') - self.write_line(b'MAIL FROM: ham=green') - self.assertEqual(self.channel.socket.last, - b'555 MAIL FROM parameters not recognized or not implemented\r\n') - - self.write_line(b'MAIL FROM:') - self.write_line(b'RCPT TO: ham=green') - self.assertEqual(self.channel.socket.last, - b'555 RCPT TO parameters not recognized or not implemented\r\n') - - def test_MAIL_size_parameter_larger_than_default_data_size_limit(self): - self.channel.data_size_limit = 1048 - self.write_line(b'EHLO example') - self.write_line(b'MAIL FROM: SIZE=2096') - self.assertEqual(self.channel.socket.last, - b'552 Error: message size exceeds fixed maximum message size\r\n') - - def test_need_MAIL(self): - self.write_line(b'HELO example') - self.write_line(b'RCPT to:spam@example') - self.assertEqual(self.channel.socket.last, - b'503 Error: need MAIL command\r\n') - - def test_MAIL_syntax_HELO(self): - self.write_line(b'HELO example') - self.write_line(b'MAIL from eggs@example') - self.assertEqual(self.channel.socket.last, - b'501 Syntax: MAIL FROM:
\r\n') - - def test_MAIL_syntax_EHLO(self): - self.write_line(b'EHLO example') - self.write_line(b'MAIL from eggs@example') - self.assertEqual(self.channel.socket.last, - b'501 Syntax: MAIL FROM:
[SP ]\r\n') - - def test_MAIL_missing_address(self): - self.write_line(b'HELO example') - self.write_line(b'MAIL from:') - self.assertEqual(self.channel.socket.last, - b'501 Syntax: MAIL FROM:
\r\n') - - def test_MAIL_chevrons(self): - self.write_line(b'HELO example') - self.write_line(b'MAIL from:') - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - - def test_MAIL_empty_chevrons(self): - self.write_line(b'EHLO example') - self.write_line(b'MAIL from:<>') - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - - def test_MAIL_quoted_localpart(self): - self.write_line(b'EHLO example') - self.write_line(b'MAIL from: <"Fred Blogs"@example.com>') - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - self.assertEqual(self.channel.mailfrom, '"Fred Blogs"@example.com') - - def test_MAIL_quoted_localpart_no_angles(self): - self.write_line(b'EHLO example') - self.write_line(b'MAIL from: "Fred Blogs"@example.com') - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - self.assertEqual(self.channel.mailfrom, '"Fred Blogs"@example.com') - - def test_MAIL_quoted_localpart_with_size(self): - self.write_line(b'EHLO example') - self.write_line(b'MAIL from: <"Fred Blogs"@example.com> SIZE=1000') - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - self.assertEqual(self.channel.mailfrom, '"Fred Blogs"@example.com') - - def test_MAIL_quoted_localpart_with_size_no_angles(self): - self.write_line(b'EHLO example') - self.write_line(b'MAIL from: "Fred Blogs"@example.com SIZE=1000') - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - self.assertEqual(self.channel.mailfrom, '"Fred Blogs"@example.com') - - def test_nested_MAIL(self): - self.write_line(b'HELO example') - self.write_line(b'MAIL from:eggs@example') - self.write_line(b'MAIL from:spam@example') - self.assertEqual(self.channel.socket.last, - b'503 Error: nested MAIL command\r\n') - - def test_VRFY(self): - self.write_line(b'VRFY eggs@example') - self.assertEqual(self.channel.socket.last, - b'252 Cannot VRFY user, but will accept message and attempt ' + \ - b'delivery\r\n') - - def test_VRFY_syntax(self): - self.write_line(b'VRFY') - self.assertEqual(self.channel.socket.last, - b'501 Syntax: VRFY
\r\n') - - def test_EXPN_not_implemented(self): - self.write_line(b'EXPN') - self.assertEqual(self.channel.socket.last, - b'502 EXPN not implemented\r\n') - - def test_no_HELO_MAIL(self): - self.write_line(b'MAIL from:') - self.assertEqual(self.channel.socket.last, - b'503 Error: send HELO first\r\n') - - def test_need_RCPT(self): - self.write_line(b'HELO example') - self.write_line(b'MAIL From:eggs@example') - self.write_line(b'DATA') - self.assertEqual(self.channel.socket.last, - b'503 Error: need RCPT command\r\n') - - def test_RCPT_syntax_HELO(self): - self.write_line(b'HELO example') - self.write_line(b'MAIL From: eggs@example') - self.write_line(b'RCPT to eggs@example') - self.assertEqual(self.channel.socket.last, - b'501 Syntax: RCPT TO:
\r\n') - - def test_RCPT_syntax_EHLO(self): - self.write_line(b'EHLO example') - self.write_line(b'MAIL From: eggs@example') - self.write_line(b'RCPT to eggs@example') - self.assertEqual(self.channel.socket.last, - b'501 Syntax: RCPT TO:
[SP ]\r\n') - - def test_RCPT_lowercase_to_OK(self): - self.write_line(b'HELO example') - self.write_line(b'MAIL From: eggs@example') - self.write_line(b'RCPT to: ') - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - - def test_no_HELO_RCPT(self): - self.write_line(b'RCPT to eggs@example') - self.assertEqual(self.channel.socket.last, - b'503 Error: send HELO first\r\n') - - def test_data_dialog(self): - self.write_line(b'HELO example') - self.write_line(b'MAIL From:eggs@example') - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - self.write_line(b'RCPT To:spam@example') - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - - self.write_line(b'DATA') - self.assertEqual(self.channel.socket.last, - b'354 End data with .\r\n') - self.write_line(b'data\r\nmore\r\n.') - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - self.assertEqual(self.server.messages, - [(('peer-address', 'peer-port'), - 'eggs@example', - ['spam@example'], - 'data\nmore')]) - - def test_DATA_syntax(self): - self.write_line(b'HELO example') - self.write_line(b'MAIL From:eggs@example') - self.write_line(b'RCPT To:spam@example') - self.write_line(b'DATA spam') - self.assertEqual(self.channel.socket.last, b'501 Syntax: DATA\r\n') - - def test_no_HELO_DATA(self): - self.write_line(b'DATA spam') - self.assertEqual(self.channel.socket.last, - b'503 Error: send HELO first\r\n') - - def test_data_transparency_section_4_5_2(self): - self.write_line(b'HELO example') - self.write_line(b'MAIL From:eggs@example') - self.write_line(b'RCPT To:spam@example') - self.write_line(b'DATA') - self.write_line(b'..\r\n.\r\n') - self.assertEqual(self.channel.received_data, '.') - - def test_multiple_RCPT(self): - self.write_line(b'HELO example') - self.write_line(b'MAIL From:eggs@example') - self.write_line(b'RCPT To:spam@example') - self.write_line(b'RCPT To:ham@example') - self.write_line(b'DATA') - self.write_line(b'data\r\n.') - self.assertEqual(self.server.messages, - [(('peer-address', 'peer-port'), - 'eggs@example', - ['spam@example','ham@example'], - 'data')]) - - def test_manual_status(self): - # checks that the Channel is able to return a custom status message - self.write_line(b'HELO example') - self.write_line(b'MAIL From:eggs@example') - self.write_line(b'RCPT To:spam@example') - self.write_line(b'DATA') - self.write_line(b'return status\r\n.') - self.assertEqual(self.channel.socket.last, b'250 Okish\r\n') - - def test_RSET(self): - self.write_line(b'HELO example') - self.write_line(b'MAIL From:eggs@example') - self.write_line(b'RCPT To:spam@example') - self.write_line(b'RSET') - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - self.write_line(b'MAIL From:foo@example') - self.write_line(b'RCPT To:eggs@example') - self.write_line(b'DATA') - self.write_line(b'data\r\n.') - self.assertEqual(self.server.messages, - [(('peer-address', 'peer-port'), - 'foo@example', - ['eggs@example'], - 'data')]) - - def test_HELO_RSET(self): - self.write_line(b'HELO example') - self.write_line(b'RSET') - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - - def test_RSET_syntax(self): - self.write_line(b'RSET hi') - self.assertEqual(self.channel.socket.last, b'501 Syntax: RSET\r\n') - - def test_unknown_command(self): - self.write_line(b'UNKNOWN_CMD') - self.assertEqual(self.channel.socket.last, - b'500 Error: command "UNKNOWN_CMD" not ' + \ - b'recognized\r\n') - - def test_attribute_deprecations(self): - with warnings_helper.check_warnings(('', DeprecationWarning)): - spam = self.channel._SMTPChannel__server - with warnings_helper.check_warnings(('', DeprecationWarning)): - self.channel._SMTPChannel__server = 'spam' - with warnings_helper.check_warnings(('', DeprecationWarning)): - spam = self.channel._SMTPChannel__line - with warnings_helper.check_warnings(('', DeprecationWarning)): - self.channel._SMTPChannel__line = 'spam' - with warnings_helper.check_warnings(('', DeprecationWarning)): - spam = self.channel._SMTPChannel__state - with warnings_helper.check_warnings(('', DeprecationWarning)): - self.channel._SMTPChannel__state = 'spam' - with warnings_helper.check_warnings(('', DeprecationWarning)): - spam = self.channel._SMTPChannel__greeting - with warnings_helper.check_warnings(('', DeprecationWarning)): - self.channel._SMTPChannel__greeting = 'spam' - with warnings_helper.check_warnings(('', DeprecationWarning)): - spam = self.channel._SMTPChannel__mailfrom - with warnings_helper.check_warnings(('', DeprecationWarning)): - self.channel._SMTPChannel__mailfrom = 'spam' - with warnings_helper.check_warnings(('', DeprecationWarning)): - spam = self.channel._SMTPChannel__rcpttos - with warnings_helper.check_warnings(('', DeprecationWarning)): - self.channel._SMTPChannel__rcpttos = 'spam' - with warnings_helper.check_warnings(('', DeprecationWarning)): - spam = self.channel._SMTPChannel__data - with warnings_helper.check_warnings(('', DeprecationWarning)): - self.channel._SMTPChannel__data = 'spam' - with warnings_helper.check_warnings(('', DeprecationWarning)): - spam = self.channel._SMTPChannel__fqdn - with warnings_helper.check_warnings(('', DeprecationWarning)): - self.channel._SMTPChannel__fqdn = 'spam' - with warnings_helper.check_warnings(('', DeprecationWarning)): - spam = self.channel._SMTPChannel__peer - with warnings_helper.check_warnings(('', DeprecationWarning)): - self.channel._SMTPChannel__peer = 'spam' - with warnings_helper.check_warnings(('', DeprecationWarning)): - spam = self.channel._SMTPChannel__conn - with warnings_helper.check_warnings(('', DeprecationWarning)): - self.channel._SMTPChannel__conn = 'spam' - with warnings_helper.check_warnings(('', DeprecationWarning)): - spam = self.channel._SMTPChannel__addr - with warnings_helper.check_warnings(('', DeprecationWarning)): - self.channel._SMTPChannel__addr = 'spam' - -@unittest.skipUnless(socket_helper.IPV6_ENABLED, "IPv6 not enabled") -class SMTPDChannelIPv6Test(SMTPDChannelTest): - def setUp(self): - smtpd.socket = asyncore.socket = mock_socket - self.old_debugstream = smtpd.DEBUGSTREAM - self.debug = smtpd.DEBUGSTREAM = io.StringIO() - self.server = DummyServer((socket_helper.HOSTv6, 0), ('b', 0), - decode_data=True) - conn, addr = self.server.accept() - self.channel = smtpd.SMTPChannel(self.server, conn, addr, - decode_data=True) - -class SMTPDChannelWithDataSizeLimitTest(unittest.TestCase): - - def setUp(self): - smtpd.socket = asyncore.socket = mock_socket - self.old_debugstream = smtpd.DEBUGSTREAM - self.debug = smtpd.DEBUGSTREAM = io.StringIO() - self.server = DummyServer((socket_helper.HOST, 0), ('b', 0), - decode_data=True) - conn, addr = self.server.accept() - # Set DATA size limit to 32 bytes for easy testing - self.channel = smtpd.SMTPChannel(self.server, conn, addr, 32, - decode_data=True) - - def tearDown(self): - asyncore.close_all() - asyncore.socket = smtpd.socket = socket - smtpd.DEBUGSTREAM = self.old_debugstream - - def write_line(self, line): - self.channel.socket.queue_recv(line) - self.channel.handle_read() - - def test_data_limit_dialog(self): - self.write_line(b'HELO example') - self.write_line(b'MAIL From:eggs@example') - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - self.write_line(b'RCPT To:spam@example') - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - - self.write_line(b'DATA') - self.assertEqual(self.channel.socket.last, - b'354 End data with .\r\n') - self.write_line(b'data\r\nmore\r\n.') - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - self.assertEqual(self.server.messages, - [(('peer-address', 'peer-port'), - 'eggs@example', - ['spam@example'], - 'data\nmore')]) - - def test_data_limit_dialog_too_much_data(self): - self.write_line(b'HELO example') - self.write_line(b'MAIL From:eggs@example') - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - self.write_line(b'RCPT To:spam@example') - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - - self.write_line(b'DATA') - self.assertEqual(self.channel.socket.last, - b'354 End data with .\r\n') - self.write_line(b'This message is longer than 32 bytes\r\n.') - self.assertEqual(self.channel.socket.last, - b'552 Error: Too much mail data\r\n') - - -class SMTPDChannelWithDecodeDataFalse(unittest.TestCase): - - def setUp(self): - smtpd.socket = asyncore.socket = mock_socket - self.old_debugstream = smtpd.DEBUGSTREAM - self.debug = smtpd.DEBUGSTREAM = io.StringIO() - self.server = DummyServer((socket_helper.HOST, 0), ('b', 0)) - conn, addr = self.server.accept() - self.channel = smtpd.SMTPChannel(self.server, conn, addr) - - def tearDown(self): - asyncore.close_all() - asyncore.socket = smtpd.socket = socket - smtpd.DEBUGSTREAM = self.old_debugstream - - def write_line(self, line): - self.channel.socket.queue_recv(line) - self.channel.handle_read() - - def test_ascii_data(self): - self.write_line(b'HELO example') - self.write_line(b'MAIL From:eggs@example') - self.write_line(b'RCPT To:spam@example') - self.write_line(b'DATA') - self.write_line(b'plain ascii text') - self.write_line(b'.') - self.assertEqual(self.channel.received_data, b'plain ascii text') - - def test_utf8_data(self): - self.write_line(b'HELO example') - self.write_line(b'MAIL From:eggs@example') - self.write_line(b'RCPT To:spam@example') - self.write_line(b'DATA') - self.write_line(b'utf8 enriched text: \xc5\xbc\xc5\xba\xc4\x87') - self.write_line(b'and some plain ascii') - self.write_line(b'.') - self.assertEqual( - self.channel.received_data, - b'utf8 enriched text: \xc5\xbc\xc5\xba\xc4\x87\n' - b'and some plain ascii') - - -class SMTPDChannelWithDecodeDataTrue(unittest.TestCase): - - def setUp(self): - smtpd.socket = asyncore.socket = mock_socket - self.old_debugstream = smtpd.DEBUGSTREAM - self.debug = smtpd.DEBUGSTREAM = io.StringIO() - self.server = DummyServer((socket_helper.HOST, 0), ('b', 0), - decode_data=True) - conn, addr = self.server.accept() - # Set decode_data to True - self.channel = smtpd.SMTPChannel(self.server, conn, addr, - decode_data=True) - - def tearDown(self): - asyncore.close_all() - asyncore.socket = smtpd.socket = socket - smtpd.DEBUGSTREAM = self.old_debugstream - - def write_line(self, line): - self.channel.socket.queue_recv(line) - self.channel.handle_read() - - def test_ascii_data(self): - self.write_line(b'HELO example') - self.write_line(b'MAIL From:eggs@example') - self.write_line(b'RCPT To:spam@example') - self.write_line(b'DATA') - self.write_line(b'plain ascii text') - self.write_line(b'.') - self.assertEqual(self.channel.received_data, 'plain ascii text') - - def test_utf8_data(self): - self.write_line(b'HELO example') - self.write_line(b'MAIL From:eggs@example') - self.write_line(b'RCPT To:spam@example') - self.write_line(b'DATA') - self.write_line(b'utf8 enriched text: \xc5\xbc\xc5\xba\xc4\x87') - self.write_line(b'and some plain ascii') - self.write_line(b'.') - self.assertEqual( - self.channel.received_data, - 'utf8 enriched text: żźć\nand some plain ascii') - - -class SMTPDChannelTestWithEnableSMTPUTF8True(unittest.TestCase): - def setUp(self): - smtpd.socket = asyncore.socket = mock_socket - self.old_debugstream = smtpd.DEBUGSTREAM - self.debug = smtpd.DEBUGSTREAM = io.StringIO() - self.server = DummyServer((socket_helper.HOST, 0), ('b', 0), - enable_SMTPUTF8=True) - conn, addr = self.server.accept() - self.channel = smtpd.SMTPChannel(self.server, conn, addr, - enable_SMTPUTF8=True) - - def tearDown(self): - asyncore.close_all() - asyncore.socket = smtpd.socket = socket - smtpd.DEBUGSTREAM = self.old_debugstream - - def write_line(self, line): - self.channel.socket.queue_recv(line) - self.channel.handle_read() - - def test_MAIL_command_accepts_SMTPUTF8_when_announced(self): - self.write_line(b'EHLO example') - self.write_line( - 'MAIL from: BODY=8BITMIME SMTPUTF8'.encode( - 'utf-8') - ) - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - - def test_process_smtputf8_message(self): - self.write_line(b'EHLO example') - for mail_parameters in [b'', b'BODY=8BITMIME SMTPUTF8']: - self.write_line(b'MAIL from: ' + mail_parameters) - self.assertEqual(self.channel.socket.last[0:3], b'250') - self.write_line(b'rcpt to:') - self.assertEqual(self.channel.socket.last[0:3], b'250') - self.write_line(b'data') - self.assertEqual(self.channel.socket.last[0:3], b'354') - self.write_line(b'c\r\n.') - if mail_parameters == b'': - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - else: - self.assertEqual(self.channel.socket.last, - b'250 SMTPUTF8 message okish\r\n') - - def test_utf8_data(self): - self.write_line(b'EHLO example') - self.write_line( - 'MAIL From: naïve@examplé BODY=8BITMIME SMTPUTF8'.encode('utf-8')) - self.assertEqual(self.channel.socket.last[0:3], b'250') - self.write_line('RCPT To:späm@examplé'.encode('utf-8')) - self.assertEqual(self.channel.socket.last[0:3], b'250') - self.write_line(b'DATA') - self.assertEqual(self.channel.socket.last[0:3], b'354') - self.write_line(b'utf8 enriched text: \xc5\xbc\xc5\xba\xc4\x87') - self.write_line(b'.') - self.assertEqual( - self.channel.received_data, - b'utf8 enriched text: \xc5\xbc\xc5\xba\xc4\x87') - - def test_MAIL_command_limit_extended_with_SIZE_and_SMTPUTF8(self): - self.write_line(b'ehlo example') - fill_len = (512 + 26 + 10) - len('mail from:<@example>') - self.write_line(b'MAIL from:<' + - b'a' * (fill_len + 1) + - b'@example>') - self.assertEqual(self.channel.socket.last, - b'500 Error: line too long\r\n') - self.write_line(b'MAIL from:<' + - b'a' * fill_len + - b'@example>') - self.assertEqual(self.channel.socket.last, b'250 OK\r\n') - - def test_multiple_emails_with_extended_command_length(self): - self.write_line(b'ehlo example') - fill_len = (512 + 26 + 10) - len('mail from:<@example>') - for char in [b'a', b'b', b'c']: - self.write_line(b'MAIL from:<' + char * fill_len + b'a@example>') - self.assertEqual(self.channel.socket.last[0:3], b'500') - self.write_line(b'MAIL from:<' + char * fill_len + b'@example>') - self.assertEqual(self.channel.socket.last[0:3], b'250') - self.write_line(b'rcpt to:') - self.assertEqual(self.channel.socket.last[0:3], b'250') - self.write_line(b'data') - self.assertEqual(self.channel.socket.last[0:3], b'354') - self.write_line(b'test\r\n.') - self.assertEqual(self.channel.socket.last[0:3], b'250') - - -class MiscTestCase(unittest.TestCase): - def test__all__(self): - not_exported = { - "program", "Devnull", "DEBUGSTREAM", "NEWLINE", "COMMASPACE", - "DATA_SIZE_DEFAULT", "usage", "Options", "parseargs", - } - support.check__all__(self, smtpd, not_exported=not_exported) - - -if __name__ == "__main__": - unittest.main() diff --git a/Lib/test/test_smtplib.py b/Lib/test/test_smtplib.py new file mode 100644 index 0000000000..9b787950fc --- /dev/null +++ b/Lib/test/test_smtplib.py @@ -0,0 +1,1566 @@ +import base64 +import email.mime.text +from email.message import EmailMessage +from email.base64mime import body_encode as encode_base64 +import email.utils +import hashlib +import hmac +import socket +import smtplib +import io +import re +import sys +import time +import select +import errno +import textwrap +import threading + +import unittest +from test import support, mock_socket +from test.support import hashlib_helper +from test.support import socket_helper +from test.support import threading_helper +from test.support import asyncore +from test.support import smtpd +from unittest.mock import Mock + + +support.requires_working_socket(module=True) + +HOST = socket_helper.HOST + +if sys.platform == 'darwin': + # select.poll returns a select.POLLHUP at the end of the tests + # on darwin, so just ignore it + def handle_expt(self): + pass + smtpd.SMTPChannel.handle_expt = handle_expt + + +def server(evt, buf, serv): + serv.listen() + evt.set() + try: + conn, addr = serv.accept() + except TimeoutError: + pass + else: + n = 500 + while buf and n > 0: + r, w, e = select.select([], [conn], []) + if w: + sent = conn.send(buf) + buf = buf[sent:] + + n -= 1 + + conn.close() + finally: + serv.close() + evt.set() + +class GeneralTests: + + def setUp(self): + smtplib.socket = mock_socket + self.port = 25 + + def tearDown(self): + smtplib.socket = socket + + # This method is no longer used but is retained for backward compatibility, + # so test to make sure it still works. + def testQuoteData(self): + teststr = "abc\n.jkl\rfoo\r\n..blue" + expected = "abc\r\n..jkl\r\nfoo\r\n...blue" + self.assertEqual(expected, smtplib.quotedata(teststr)) + + def testBasic1(self): + mock_socket.reply_with(b"220 Hola mundo") + # connects + client = self.client(HOST, self.port) + client.close() + + def testSourceAddress(self): + mock_socket.reply_with(b"220 Hola mundo") + # connects + client = self.client(HOST, self.port, + source_address=('127.0.0.1',19876)) + self.assertEqual(client.source_address, ('127.0.0.1', 19876)) + client.close() + + def testBasic2(self): + mock_socket.reply_with(b"220 Hola mundo") + # connects, include port in host name + client = self.client("%s:%s" % (HOST, self.port)) + client.close() + + def testLocalHostName(self): + mock_socket.reply_with(b"220 Hola mundo") + # check that supplied local_hostname is used + client = self.client(HOST, self.port, local_hostname="testhost") + self.assertEqual(client.local_hostname, "testhost") + client.close() + + def testTimeoutDefault(self): + mock_socket.reply_with(b"220 Hola mundo") + self.assertIsNone(mock_socket.getdefaulttimeout()) + mock_socket.setdefaulttimeout(30) + self.assertEqual(mock_socket.getdefaulttimeout(), 30) + try: + client = self.client(HOST, self.port) + finally: + mock_socket.setdefaulttimeout(None) + self.assertEqual(client.sock.gettimeout(), 30) + client.close() + + def testTimeoutNone(self): + mock_socket.reply_with(b"220 Hola mundo") + self.assertIsNone(socket.getdefaulttimeout()) + socket.setdefaulttimeout(30) + try: + client = self.client(HOST, self.port, timeout=None) + finally: + socket.setdefaulttimeout(None) + self.assertIsNone(client.sock.gettimeout()) + client.close() + + def testTimeoutZero(self): + mock_socket.reply_with(b"220 Hola mundo") + with self.assertRaises(ValueError): + self.client(HOST, self.port, timeout=0) + + def testTimeoutValue(self): + mock_socket.reply_with(b"220 Hola mundo") + client = self.client(HOST, self.port, timeout=30) + self.assertEqual(client.sock.gettimeout(), 30) + client.close() + + def test_debuglevel(self): + mock_socket.reply_with(b"220 Hello world") + client = self.client() + client.set_debuglevel(1) + with support.captured_stderr() as stderr: + client.connect(HOST, self.port) + client.close() + expected = re.compile(r"^connect:", re.MULTILINE) + self.assertRegex(stderr.getvalue(), expected) + + def test_debuglevel_2(self): + mock_socket.reply_with(b"220 Hello world") + client = self.client() + client.set_debuglevel(2) + with support.captured_stderr() as stderr: + client.connect(HOST, self.port) + client.close() + expected = re.compile(r"^\d{2}:\d{2}:\d{2}\.\d{6} connect: ", + re.MULTILINE) + self.assertRegex(stderr.getvalue(), expected) + + +class SMTPGeneralTests(GeneralTests, unittest.TestCase): + + client = smtplib.SMTP + + +class LMTPGeneralTests(GeneralTests, unittest.TestCase): + + client = smtplib.LMTP + + @unittest.skipUnless(hasattr(socket, 'AF_UNIX'), "test requires Unix domain socket") + def testUnixDomainSocketTimeoutDefault(self): + local_host = '/some/local/lmtp/delivery/program' + mock_socket.reply_with(b"220 Hello world") + try: + client = self.client(local_host, self.port) + finally: + mock_socket.setdefaulttimeout(None) + self.assertIsNone(client.sock.gettimeout()) + client.close() + + def testTimeoutZero(self): + super().testTimeoutZero() + local_host = '/some/local/lmtp/delivery/program' + with self.assertRaises(ValueError): + self.client(local_host, timeout=0) + +# Test server thread using the specified SMTP server class +def debugging_server(serv, serv_evt, client_evt): + serv_evt.set() + + try: + if hasattr(select, 'poll'): + poll_fun = asyncore.poll2 + else: + poll_fun = asyncore.poll + + n = 1000 + while asyncore.socket_map and n > 0: + poll_fun(0.01, asyncore.socket_map) + + # when the client conversation is finished, it will + # set client_evt, and it's then ok to kill the server + if client_evt.is_set(): + serv.close() + break + + n -= 1 + + except TimeoutError: + pass + finally: + if not client_evt.is_set(): + # allow some time for the client to read the result + time.sleep(0.5) + serv.close() + asyncore.close_all() + serv_evt.set() + +MSG_BEGIN = '---------- MESSAGE FOLLOWS ----------\n' +MSG_END = '------------ END MESSAGE ------------\n' + +# NOTE: Some SMTP objects in the tests below are created with a non-default +# local_hostname argument to the constructor, since (on some systems) the FQDN +# lookup caused by the default local_hostname sometimes takes so long that the +# test server times out, causing the test to fail. + +# Test behavior of smtpd.DebuggingServer +class DebuggingServerTests(unittest.TestCase): + + maxDiff = None + + def setUp(self): + self.thread_key = threading_helper.threading_setup() + self.real_getfqdn = socket.getfqdn + socket.getfqdn = mock_socket.getfqdn + # temporarily replace sys.stdout to capture DebuggingServer output + self.old_stdout = sys.stdout + self.output = io.StringIO() + sys.stdout = self.output + + self.serv_evt = threading.Event() + self.client_evt = threading.Event() + # Capture SMTPChannel debug output + self.old_DEBUGSTREAM = smtpd.DEBUGSTREAM + smtpd.DEBUGSTREAM = io.StringIO() + # Pick a random unused port by passing 0 for the port number + self.serv = smtpd.DebuggingServer((HOST, 0), ('nowhere', -1), + decode_data=True) + # Keep a note of what server host and port were assigned + self.host, self.port = self.serv.socket.getsockname()[:2] + serv_args = (self.serv, self.serv_evt, self.client_evt) + self.thread = threading.Thread(target=debugging_server, args=serv_args) + self.thread.start() + + # wait until server thread has assigned a port number + self.serv_evt.wait() + self.serv_evt.clear() + + def tearDown(self): + socket.getfqdn = self.real_getfqdn + # indicate that the client is finished + self.client_evt.set() + # wait for the server thread to terminate + self.serv_evt.wait() + threading_helper.join_thread(self.thread) + # restore sys.stdout + sys.stdout = self.old_stdout + # restore DEBUGSTREAM + smtpd.DEBUGSTREAM.close() + smtpd.DEBUGSTREAM = self.old_DEBUGSTREAM + del self.thread + self.doCleanups() + threading_helper.threading_cleanup(*self.thread_key) + + def get_output_without_xpeer(self): + test_output = self.output.getvalue() + return re.sub(r'(.*?)^X-Peer:\s*\S+\n(.*)', r'\1\2', + test_output, flags=re.MULTILINE|re.DOTALL) + + def testBasic(self): + # connect + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + smtp.quit() + + def testSourceAddress(self): + # connect + src_port = socket_helper.find_unused_port() + try: + smtp = smtplib.SMTP(self.host, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT, + source_address=(self.host, src_port)) + self.addCleanup(smtp.close) + self.assertEqual(smtp.source_address, (self.host, src_port)) + self.assertEqual(smtp.local_hostname, 'localhost') + smtp.quit() + except OSError as e: + if e.errno == errno.EADDRINUSE: + self.skipTest("couldn't bind to source port %d" % src_port) + raise + + def testNOOP(self): + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + expected = (250, b'OK') + self.assertEqual(smtp.noop(), expected) + smtp.quit() + + def testRSET(self): + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + expected = (250, b'OK') + self.assertEqual(smtp.rset(), expected) + smtp.quit() + + def testELHO(self): + # EHLO isn't implemented in DebuggingServer + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + expected = (250, b'\nSIZE 33554432\nHELP') + self.assertEqual(smtp.ehlo(), expected) + smtp.quit() + + def testEXPNNotImplemented(self): + # EXPN isn't implemented in DebuggingServer + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + expected = (502, b'EXPN not implemented') + smtp.putcmd('EXPN') + self.assertEqual(smtp.getreply(), expected) + smtp.quit() + + def test_issue43124_putcmd_escapes_newline(self): + # see: https://bugs.python.org/issue43124 + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + with self.assertRaises(ValueError) as exc: + smtp.putcmd('helo\nX-INJECTED') + self.assertIn("prohibited newline characters", str(exc.exception)) + smtp.quit() + + def testVRFY(self): + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + expected = (252, b'Cannot VRFY user, but will accept message ' + \ + b'and attempt delivery') + self.assertEqual(smtp.vrfy('nobody@nowhere.com'), expected) + self.assertEqual(smtp.verify('nobody@nowhere.com'), expected) + smtp.quit() + + def testSecondHELO(self): + # check that a second HELO returns a message that it's a duplicate + # (this behavior is specific to smtpd.SMTPChannel) + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + smtp.helo() + expected = (503, b'Duplicate HELO/EHLO') + self.assertEqual(smtp.helo(), expected) + smtp.quit() + + def testHELP(self): + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + self.assertEqual(smtp.help(), b'Supported commands: EHLO HELO MAIL ' + \ + b'RCPT DATA RSET NOOP QUIT VRFY') + smtp.quit() + + def testSend(self): + # connect and send mail + m = 'A test message' + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + smtp.sendmail('John', 'Sally', m) + # XXX(nnorwitz): this test is flaky and dies with a bad file descriptor + # in asyncore. This sleep might help, but should really be fixed + # properly by using an Event variable. + time.sleep(0.01) + smtp.quit() + + self.client_evt.set() + self.serv_evt.wait() + self.output.flush() + mexpect = '%s%s\n%s' % (MSG_BEGIN, m, MSG_END) + self.assertEqual(self.output.getvalue(), mexpect) + + def testSendBinary(self): + m = b'A test message' + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + smtp.sendmail('John', 'Sally', m) + # XXX (see comment in testSend) + time.sleep(0.01) + smtp.quit() + + self.client_evt.set() + self.serv_evt.wait() + self.output.flush() + mexpect = '%s%s\n%s' % (MSG_BEGIN, m.decode('ascii'), MSG_END) + self.assertEqual(self.output.getvalue(), mexpect) + + def testSendNeedingDotQuote(self): + # Issue 12283 + m = '.A test\n.mes.sage.' + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + smtp.sendmail('John', 'Sally', m) + # XXX (see comment in testSend) + time.sleep(0.01) + smtp.quit() + + self.client_evt.set() + self.serv_evt.wait() + self.output.flush() + mexpect = '%s%s\n%s' % (MSG_BEGIN, m, MSG_END) + self.assertEqual(self.output.getvalue(), mexpect) + + def test_issue43124_escape_localhostname(self): + # see: https://bugs.python.org/issue43124 + # connect and send mail + m = 'wazzuuup\nlinetwo' + smtp = smtplib.SMTP(HOST, self.port, local_hostname='hi\nX-INJECTED', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + with self.assertRaises(ValueError) as exc: + smtp.sendmail("hi@me.com", "you@me.com", m) + self.assertIn( + "prohibited newline characters: ehlo hi\\nX-INJECTED", + str(exc.exception), + ) + # XXX (see comment in testSend) + time.sleep(0.01) + smtp.quit() + + debugout = smtpd.DEBUGSTREAM.getvalue() + self.assertNotIn("X-INJECTED", debugout) + + def test_issue43124_escape_options(self): + # see: https://bugs.python.org/issue43124 + # connect and send mail + m = 'wazzuuup\nlinetwo' + smtp = smtplib.SMTP( + HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + + self.addCleanup(smtp.close) + smtp.sendmail("hi@me.com", "you@me.com", m) + with self.assertRaises(ValueError) as exc: + smtp.mail("hi@me.com", ["X-OPTION\nX-INJECTED-1", "X-OPTION2\nX-INJECTED-2"]) + msg = str(exc.exception) + self.assertIn("prohibited newline characters", msg) + self.assertIn("X-OPTION\\nX-INJECTED-1 X-OPTION2\\nX-INJECTED-2", msg) + # XXX (see comment in testSend) + time.sleep(0.01) + smtp.quit() + + debugout = smtpd.DEBUGSTREAM.getvalue() + self.assertNotIn("X-OPTION", debugout) + self.assertNotIn("X-OPTION2", debugout) + self.assertNotIn("X-INJECTED-1", debugout) + self.assertNotIn("X-INJECTED-2", debugout) + + def testSendNullSender(self): + m = 'A test message' + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + smtp.sendmail('<>', 'Sally', m) + # XXX (see comment in testSend) + time.sleep(0.01) + smtp.quit() + + self.client_evt.set() + self.serv_evt.wait() + self.output.flush() + mexpect = '%s%s\n%s' % (MSG_BEGIN, m, MSG_END) + self.assertEqual(self.output.getvalue(), mexpect) + debugout = smtpd.DEBUGSTREAM.getvalue() + sender = re.compile("^sender: <>$", re.MULTILINE) + self.assertRegex(debugout, sender) + + def testSendMessage(self): + m = email.mime.text.MIMEText('A test message') + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + smtp.send_message(m, from_addr='John', to_addrs='Sally') + # XXX (see comment in testSend) + time.sleep(0.01) + smtp.quit() + + self.client_evt.set() + self.serv_evt.wait() + self.output.flush() + # Remove the X-Peer header that DebuggingServer adds as figuring out + # exactly what IP address format is put there is not easy (and + # irrelevant to our test). Typically 127.0.0.1 or ::1, but it is + # not always the same as socket.gethostbyname(HOST). :( + test_output = self.get_output_without_xpeer() + del m['X-Peer'] + mexpect = '%s%s\n%s' % (MSG_BEGIN, m.as_string(), MSG_END) + self.assertEqual(test_output, mexpect) + + def testSendMessageWithAddresses(self): + m = email.mime.text.MIMEText('A test message') + m['From'] = 'foo@bar.com' + m['To'] = 'John' + m['CC'] = 'Sally, Fred' + m['Bcc'] = 'John Root , "Dinsdale" ' + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + smtp.send_message(m) + # XXX (see comment in testSend) + time.sleep(0.01) + smtp.quit() + # make sure the Bcc header is still in the message. + self.assertEqual(m['Bcc'], 'John Root , "Dinsdale" ' + '') + + self.client_evt.set() + self.serv_evt.wait() + self.output.flush() + # Remove the X-Peer header that DebuggingServer adds. + test_output = self.get_output_without_xpeer() + del m['X-Peer'] + # The Bcc header should not be transmitted. + del m['Bcc'] + mexpect = '%s%s\n%s' % (MSG_BEGIN, m.as_string(), MSG_END) + self.assertEqual(test_output, mexpect) + debugout = smtpd.DEBUGSTREAM.getvalue() + sender = re.compile("^sender: foo@bar.com$", re.MULTILINE) + self.assertRegex(debugout, sender) + for addr in ('John', 'Sally', 'Fred', 'root@localhost', + 'warped@silly.walks.com'): + to_addr = re.compile(r"^recips: .*'{}'.*$".format(addr), + re.MULTILINE) + self.assertRegex(debugout, to_addr) + + def testSendMessageWithSomeAddresses(self): + # Make sure nothing breaks if not all of the three 'to' headers exist + m = email.mime.text.MIMEText('A test message') + m['From'] = 'foo@bar.com' + m['To'] = 'John, Dinsdale' + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + smtp.send_message(m) + # XXX (see comment in testSend) + time.sleep(0.01) + smtp.quit() + + self.client_evt.set() + self.serv_evt.wait() + self.output.flush() + # Remove the X-Peer header that DebuggingServer adds. + test_output = self.get_output_without_xpeer() + del m['X-Peer'] + mexpect = '%s%s\n%s' % (MSG_BEGIN, m.as_string(), MSG_END) + self.assertEqual(test_output, mexpect) + debugout = smtpd.DEBUGSTREAM.getvalue() + sender = re.compile("^sender: foo@bar.com$", re.MULTILINE) + self.assertRegex(debugout, sender) + for addr in ('John', 'Dinsdale'): + to_addr = re.compile(r"^recips: .*'{}'.*$".format(addr), + re.MULTILINE) + self.assertRegex(debugout, to_addr) + + def testSendMessageWithSpecifiedAddresses(self): + # Make sure addresses specified in call override those in message. + m = email.mime.text.MIMEText('A test message') + m['From'] = 'foo@bar.com' + m['To'] = 'John, Dinsdale' + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + smtp.send_message(m, from_addr='joe@example.com', to_addrs='foo@example.net') + # XXX (see comment in testSend) + time.sleep(0.01) + smtp.quit() + + self.client_evt.set() + self.serv_evt.wait() + self.output.flush() + # Remove the X-Peer header that DebuggingServer adds. + test_output = self.get_output_without_xpeer() + del m['X-Peer'] + mexpect = '%s%s\n%s' % (MSG_BEGIN, m.as_string(), MSG_END) + self.assertEqual(test_output, mexpect) + debugout = smtpd.DEBUGSTREAM.getvalue() + sender = re.compile("^sender: joe@example.com$", re.MULTILINE) + self.assertRegex(debugout, sender) + for addr in ('John', 'Dinsdale'): + to_addr = re.compile(r"^recips: .*'{}'.*$".format(addr), + re.MULTILINE) + self.assertNotRegex(debugout, to_addr) + recip = re.compile(r"^recips: .*'foo@example.net'.*$", re.MULTILINE) + self.assertRegex(debugout, recip) + + def testSendMessageWithMultipleFrom(self): + # Sender overrides To + m = email.mime.text.MIMEText('A test message') + m['From'] = 'Bernard, Bianca' + m['Sender'] = 'the_rescuers@Rescue-Aid-Society.com' + m['To'] = 'John, Dinsdale' + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + smtp.send_message(m) + # XXX (see comment in testSend) + time.sleep(0.01) + smtp.quit() + + self.client_evt.set() + self.serv_evt.wait() + self.output.flush() + # Remove the X-Peer header that DebuggingServer adds. + test_output = self.get_output_without_xpeer() + del m['X-Peer'] + mexpect = '%s%s\n%s' % (MSG_BEGIN, m.as_string(), MSG_END) + self.assertEqual(test_output, mexpect) + debugout = smtpd.DEBUGSTREAM.getvalue() + sender = re.compile("^sender: the_rescuers@Rescue-Aid-Society.com$", re.MULTILINE) + self.assertRegex(debugout, sender) + for addr in ('John', 'Dinsdale'): + to_addr = re.compile(r"^recips: .*'{}'.*$".format(addr), + re.MULTILINE) + self.assertRegex(debugout, to_addr) + + def testSendMessageResent(self): + m = email.mime.text.MIMEText('A test message') + m['From'] = 'foo@bar.com' + m['To'] = 'John' + m['CC'] = 'Sally, Fred' + m['Bcc'] = 'John Root , "Dinsdale" ' + m['Resent-Date'] = 'Thu, 1 Jan 1970 17:42:00 +0000' + m['Resent-From'] = 'holy@grail.net' + m['Resent-To'] = 'Martha , Jeff' + m['Resent-Bcc'] = 'doe@losthope.net' + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + smtp.send_message(m) + # XXX (see comment in testSend) + time.sleep(0.01) + smtp.quit() + + self.client_evt.set() + self.serv_evt.wait() + self.output.flush() + # The Resent-Bcc headers are deleted before serialization. + del m['Bcc'] + del m['Resent-Bcc'] + # Remove the X-Peer header that DebuggingServer adds. + test_output = self.get_output_without_xpeer() + del m['X-Peer'] + mexpect = '%s%s\n%s' % (MSG_BEGIN, m.as_string(), MSG_END) + self.assertEqual(test_output, mexpect) + debugout = smtpd.DEBUGSTREAM.getvalue() + sender = re.compile("^sender: holy@grail.net$", re.MULTILINE) + self.assertRegex(debugout, sender) + for addr in ('my_mom@great.cooker.com', 'Jeff', 'doe@losthope.net'): + to_addr = re.compile(r"^recips: .*'{}'.*$".format(addr), + re.MULTILINE) + self.assertRegex(debugout, to_addr) + + def testSendMessageMultipleResentRaises(self): + m = email.mime.text.MIMEText('A test message') + m['From'] = 'foo@bar.com' + m['To'] = 'John' + m['CC'] = 'Sally, Fred' + m['Bcc'] = 'John Root , "Dinsdale" ' + m['Resent-Date'] = 'Thu, 1 Jan 1970 17:42:00 +0000' + m['Resent-From'] = 'holy@grail.net' + m['Resent-To'] = 'Martha , Jeff' + m['Resent-Bcc'] = 'doe@losthope.net' + m['Resent-Date'] = 'Thu, 2 Jan 1970 17:42:00 +0000' + m['Resent-To'] = 'holy@grail.net' + m['Resent-From'] = 'Martha , Jeff' + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + with self.assertRaises(ValueError): + smtp.send_message(m) + smtp.close() + +class NonConnectingTests(unittest.TestCase): + + def testNotConnected(self): + # Test various operations on an unconnected SMTP object that + # should raise exceptions (at present the attempt in SMTP.send + # to reference the nonexistent 'sock' attribute of the SMTP object + # causes an AttributeError) + smtp = smtplib.SMTP() + self.assertRaises(smtplib.SMTPServerDisconnected, smtp.ehlo) + self.assertRaises(smtplib.SMTPServerDisconnected, + smtp.send, 'test msg') + + def testNonnumericPort(self): + # check that non-numeric port raises OSError + self.assertRaises(OSError, smtplib.SMTP, + "localhost", "bogus") + self.assertRaises(OSError, smtplib.SMTP, + "localhost:bogus") + + def testSockAttributeExists(self): + # check that sock attribute is present outside of a connect() call + # (regression test, the previous behavior raised an + # AttributeError: 'SMTP' object has no attribute 'sock') + with smtplib.SMTP() as smtp: + self.assertIsNone(smtp.sock) + + +class DefaultArgumentsTests(unittest.TestCase): + + def setUp(self): + self.msg = EmailMessage() + self.msg['From'] = 'Páolo ' + self.smtp = smtplib.SMTP() + self.smtp.ehlo = Mock(return_value=(200, 'OK')) + self.smtp.has_extn, self.smtp.sendmail = Mock(), Mock() + + def testSendMessage(self): + expected_mail_options = ('SMTPUTF8', 'BODY=8BITMIME') + self.smtp.send_message(self.msg) + self.smtp.send_message(self.msg) + self.assertEqual(self.smtp.sendmail.call_args_list[0][0][3], + expected_mail_options) + self.assertEqual(self.smtp.sendmail.call_args_list[1][0][3], + expected_mail_options) + + def testSendMessageWithMailOptions(self): + mail_options = ['STARTTLS'] + expected_mail_options = ('STARTTLS', 'SMTPUTF8', 'BODY=8BITMIME') + self.smtp.send_message(self.msg, None, None, mail_options) + self.assertEqual(mail_options, ['STARTTLS']) + self.assertEqual(self.smtp.sendmail.call_args_list[0][0][3], + expected_mail_options) + + +# test response of client to a non-successful HELO message +class BadHELOServerTests(unittest.TestCase): + + def setUp(self): + smtplib.socket = mock_socket + mock_socket.reply_with(b"199 no hello for you!") + self.old_stdout = sys.stdout + self.output = io.StringIO() + sys.stdout = self.output + self.port = 25 + + def tearDown(self): + smtplib.socket = socket + sys.stdout = self.old_stdout + + def testFailingHELO(self): + self.assertRaises(smtplib.SMTPConnectError, smtplib.SMTP, + HOST, self.port, 'localhost', 3) + + +class TooLongLineTests(unittest.TestCase): + respdata = b'250 OK' + (b'.' * smtplib._MAXLINE * 2) + b'\n' + + def setUp(self): + self.thread_key = threading_helper.threading_setup() + self.old_stdout = sys.stdout + self.output = io.StringIO() + sys.stdout = self.output + + self.evt = threading.Event() + self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) + self.sock.settimeout(15) + self.port = socket_helper.bind_port(self.sock) + servargs = (self.evt, self.respdata, self.sock) + self.thread = threading.Thread(target=server, args=servargs) + self.thread.start() + self.evt.wait() + self.evt.clear() + + def tearDown(self): + self.evt.wait() + sys.stdout = self.old_stdout + threading_helper.join_thread(self.thread) + del self.thread + self.doCleanups() + threading_helper.threading_cleanup(*self.thread_key) + + def testLineTooLong(self): + self.assertRaises(smtplib.SMTPResponseException, smtplib.SMTP, + HOST, self.port, 'localhost', 3) + + +sim_users = {'Mr.A@somewhere.com':'John A', + 'Ms.B@xn--fo-fka.com':'Sally B', + 'Mrs.C@somewhereesle.com':'Ruth C', + } + +sim_auth = ('Mr.A@somewhere.com', 'somepassword') +sim_cram_md5_challenge = ('PENCeUxFREJoU0NnbmhNWitOMjNGNn' + 'dAZWx3b29kLmlubm9zb2Z0LmNvbT4=') +sim_lists = {'list-1':['Mr.A@somewhere.com','Mrs.C@somewhereesle.com'], + 'list-2':['Ms.B@xn--fo-fka.com',], + } + +# Simulated SMTP channel & server +class ResponseException(Exception): pass +class SimSMTPChannel(smtpd.SMTPChannel): + + quit_response = None + mail_response = None + rcpt_response = None + data_response = None + rcpt_count = 0 + rset_count = 0 + disconnect = 0 + AUTH = 99 # Add protocol state to enable auth testing. + authenticated_user = None + + def __init__(self, extra_features, *args, **kw): + self._extrafeatures = ''.join( + [ "250-{0}\r\n".format(x) for x in extra_features ]) + super(SimSMTPChannel, self).__init__(*args, **kw) + + # AUTH related stuff. It would be nice if support for this were in smtpd. + def found_terminator(self): + if self.smtp_state == self.AUTH: + line = self._emptystring.join(self.received_lines) + print('Data:', repr(line), file=smtpd.DEBUGSTREAM) + self.received_lines = [] + try: + self.auth_object(line) + except ResponseException as e: + self.smtp_state = self.COMMAND + self.push('%s %s' % (e.smtp_code, e.smtp_error)) + return + super().found_terminator() + + + def smtp_AUTH(self, arg): + if not self.seen_greeting: + self.push('503 Error: send EHLO first') + return + if not self.extended_smtp or 'AUTH' not in self._extrafeatures: + self.push('500 Error: command "AUTH" not recognized') + return + if self.authenticated_user is not None: + self.push( + '503 Bad sequence of commands: already authenticated') + return + args = arg.split() + if len(args) not in [1, 2]: + self.push('501 Syntax: AUTH [initial-response]') + return + auth_object_name = '_auth_%s' % args[0].lower().replace('-', '_') + try: + self.auth_object = getattr(self, auth_object_name) + except AttributeError: + self.push('504 Command parameter not implemented: unsupported ' + ' authentication mechanism {!r}'.format(auth_object_name)) + return + self.smtp_state = self.AUTH + self.auth_object(args[1] if len(args) == 2 else None) + + def _authenticated(self, user, valid): + if valid: + self.authenticated_user = user + self.push('235 Authentication Succeeded') + else: + self.push('535 Authentication credentials invalid') + self.smtp_state = self.COMMAND + + def _decode_base64(self, string): + return base64.decodebytes(string.encode('ascii')).decode('utf-8') + + def _auth_plain(self, arg=None): + if arg is None: + self.push('334 ') + else: + logpass = self._decode_base64(arg) + try: + *_, user, password = logpass.split('\0') + except ValueError as e: + self.push('535 Splitting response {!r} into user and password' + ' failed: {}'.format(logpass, e)) + return + self._authenticated(user, password == sim_auth[1]) + + def _auth_login(self, arg=None): + if arg is None: + # base64 encoded 'Username:' + self.push('334 VXNlcm5hbWU6') + elif not hasattr(self, '_auth_login_user'): + self._auth_login_user = self._decode_base64(arg) + # base64 encoded 'Password:' + self.push('334 UGFzc3dvcmQ6') + else: + password = self._decode_base64(arg) + self._authenticated(self._auth_login_user, password == sim_auth[1]) + del self._auth_login_user + + def _auth_buggy(self, arg=None): + # This AUTH mechanism will 'trap' client in a neverending 334 + # base64 encoded 'BuGgYbUgGy' + self.push('334 QnVHZ1liVWdHeQ==') + + def _auth_cram_md5(self, arg=None): + if arg is None: + self.push('334 {}'.format(sim_cram_md5_challenge)) + else: + logpass = self._decode_base64(arg) + try: + user, hashed_pass = logpass.split() + except ValueError as e: + self.push('535 Splitting response {!r} into user and password ' + 'failed: {}'.format(logpass, e)) + return False + valid_hashed_pass = hmac.HMAC( + sim_auth[1].encode('ascii'), + self._decode_base64(sim_cram_md5_challenge).encode('ascii'), + 'md5').hexdigest() + self._authenticated(user, hashed_pass == valid_hashed_pass) + # end AUTH related stuff. + + def smtp_EHLO(self, arg): + resp = ('250-testhost\r\n' + '250-EXPN\r\n' + '250-SIZE 20000000\r\n' + '250-STARTTLS\r\n' + '250-DELIVERBY\r\n') + resp = resp + self._extrafeatures + '250 HELP' + self.push(resp) + self.seen_greeting = arg + self.extended_smtp = True + + def smtp_VRFY(self, arg): + # For max compatibility smtplib should be sending the raw address. + if arg in sim_users: + self.push('250 %s %s' % (sim_users[arg], smtplib.quoteaddr(arg))) + else: + self.push('550 No such user: %s' % arg) + + def smtp_EXPN(self, arg): + list_name = arg.lower() + if list_name in sim_lists: + user_list = sim_lists[list_name] + for n, user_email in enumerate(user_list): + quoted_addr = smtplib.quoteaddr(user_email) + if n < len(user_list) - 1: + self.push('250-%s %s' % (sim_users[user_email], quoted_addr)) + else: + self.push('250 %s %s' % (sim_users[user_email], quoted_addr)) + else: + self.push('550 No access for you!') + + def smtp_QUIT(self, arg): + if self.quit_response is None: + super(SimSMTPChannel, self).smtp_QUIT(arg) + else: + self.push(self.quit_response) + self.close_when_done() + + def smtp_MAIL(self, arg): + if self.mail_response is None: + super().smtp_MAIL(arg) + else: + self.push(self.mail_response) + if self.disconnect: + self.close_when_done() + + def smtp_RCPT(self, arg): + if self.rcpt_response is None: + super().smtp_RCPT(arg) + return + self.rcpt_count += 1 + self.push(self.rcpt_response[self.rcpt_count-1]) + + def smtp_RSET(self, arg): + self.rset_count += 1 + super().smtp_RSET(arg) + + def smtp_DATA(self, arg): + if self.data_response is None: + super().smtp_DATA(arg) + else: + self.push(self.data_response) + + def handle_error(self): + raise + + +class SimSMTPServer(smtpd.SMTPServer): + + channel_class = SimSMTPChannel + + def __init__(self, *args, **kw): + self._extra_features = [] + self._addresses = {} + smtpd.SMTPServer.__init__(self, *args, **kw) + + def handle_accepted(self, conn, addr): + self._SMTPchannel = self.channel_class( + self._extra_features, self, conn, addr, + decode_data=self._decode_data) + + def process_message(self, peer, mailfrom, rcpttos, data): + self._addresses['from'] = mailfrom + self._addresses['tos'] = rcpttos + + def add_feature(self, feature): + self._extra_features.append(feature) + + def handle_error(self): + raise + + +# Test various SMTP & ESMTP commands/behaviors that require a simulated server +# (i.e., something with more features than DebuggingServer) +class SMTPSimTests(unittest.TestCase): + + def setUp(self): + self.thread_key = threading_helper.threading_setup() + self.real_getfqdn = socket.getfqdn + socket.getfqdn = mock_socket.getfqdn + self.serv_evt = threading.Event() + self.client_evt = threading.Event() + # Pick a random unused port by passing 0 for the port number + self.serv = SimSMTPServer((HOST, 0), ('nowhere', -1), decode_data=True) + # Keep a note of what port was assigned + self.port = self.serv.socket.getsockname()[1] + serv_args = (self.serv, self.serv_evt, self.client_evt) + self.thread = threading.Thread(target=debugging_server, args=serv_args) + self.thread.start() + + # wait until server thread has assigned a port number + self.serv_evt.wait() + self.serv_evt.clear() + + def tearDown(self): + socket.getfqdn = self.real_getfqdn + # indicate that the client is finished + self.client_evt.set() + # wait for the server thread to terminate + self.serv_evt.wait() + threading_helper.join_thread(self.thread) + del self.thread + self.doCleanups() + threading_helper.threading_cleanup(*self.thread_key) + + def testBasic(self): + # smoke test + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + smtp.quit() + + def testEHLO(self): + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + + # no features should be present before the EHLO + self.assertEqual(smtp.esmtp_features, {}) + + # features expected from the test server + expected_features = {'expn':'', + 'size': '20000000', + 'starttls': '', + 'deliverby': '', + 'help': '', + } + + smtp.ehlo() + self.assertEqual(smtp.esmtp_features, expected_features) + for k in expected_features: + self.assertTrue(smtp.has_extn(k)) + self.assertFalse(smtp.has_extn('unsupported-feature')) + smtp.quit() + + def testVRFY(self): + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + + for addr_spec, name in sim_users.items(): + expected_known = (250, bytes('%s %s' % + (name, smtplib.quoteaddr(addr_spec)), + "ascii")) + self.assertEqual(smtp.vrfy(addr_spec), expected_known) + + u = 'nobody@nowhere.com' + expected_unknown = (550, ('No such user: %s' % u).encode('ascii')) + self.assertEqual(smtp.vrfy(u), expected_unknown) + smtp.quit() + + def testEXPN(self): + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + + for listname, members in sim_lists.items(): + users = [] + for m in members: + users.append('%s %s' % (sim_users[m], smtplib.quoteaddr(m))) + expected_known = (250, bytes('\n'.join(users), "ascii")) + self.assertEqual(smtp.expn(listname), expected_known) + + u = 'PSU-Members-List' + expected_unknown = (550, b'No access for you!') + self.assertEqual(smtp.expn(u), expected_unknown) + smtp.quit() + + def testAUTH_PLAIN(self): + self.serv.add_feature("AUTH PLAIN") + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + resp = smtp.login(sim_auth[0], sim_auth[1]) + self.assertEqual(resp, (235, b'Authentication Succeeded')) + smtp.close() + + def testAUTH_LOGIN(self): + self.serv.add_feature("AUTH LOGIN") + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + resp = smtp.login(sim_auth[0], sim_auth[1]) + self.assertEqual(resp, (235, b'Authentication Succeeded')) + smtp.close() + + def testAUTH_LOGIN_initial_response_ok(self): + self.serv.add_feature("AUTH LOGIN") + with smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) as smtp: + smtp.user, smtp.password = sim_auth + smtp.ehlo("test_auth_login") + resp = smtp.auth("LOGIN", smtp.auth_login, initial_response_ok=True) + self.assertEqual(resp, (235, b'Authentication Succeeded')) + + def testAUTH_LOGIN_initial_response_notok(self): + self.serv.add_feature("AUTH LOGIN") + with smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) as smtp: + smtp.user, smtp.password = sim_auth + smtp.ehlo("test_auth_login") + resp = smtp.auth("LOGIN", smtp.auth_login, initial_response_ok=False) + self.assertEqual(resp, (235, b'Authentication Succeeded')) + + def testAUTH_BUGGY(self): + self.serv.add_feature("AUTH BUGGY") + + def auth_buggy(challenge=None): + self.assertEqual(b"BuGgYbUgGy", challenge) + return "\0" + + smtp = smtplib.SMTP( + HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT + ) + try: + smtp.user, smtp.password = sim_auth + smtp.ehlo("test_auth_buggy") + expect = r"^Server AUTH mechanism infinite loop.*" + with self.assertRaisesRegex(smtplib.SMTPException, expect) as cm: + smtp.auth("BUGGY", auth_buggy, initial_response_ok=False) + finally: + smtp.close() + + # TODO: RUSTPYTHON + @unittest.expectedFailure + @hashlib_helper.requires_hashdigest('md5', openssl=True) + def testAUTH_CRAM_MD5(self): + self.serv.add_feature("AUTH CRAM-MD5") + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + resp = smtp.login(sim_auth[0], sim_auth[1]) + self.assertEqual(resp, (235, b'Authentication Succeeded')) + smtp.close() + + # TODO: RUSTPYTHON + @unittest.expectedFailure + @hashlib_helper.requires_hashdigest('md5', openssl=True) + def testAUTH_multiple(self): + # Test that multiple authentication methods are tried. + self.serv.add_feature("AUTH BOGUS PLAIN LOGIN CRAM-MD5") + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + resp = smtp.login(sim_auth[0], sim_auth[1]) + self.assertEqual(resp, (235, b'Authentication Succeeded')) + smtp.close() + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_auth_function(self): + supported = {'PLAIN', 'LOGIN'} + try: + hashlib.md5() + except ValueError: + pass + else: + supported.add('CRAM-MD5') + for mechanism in supported: + self.serv.add_feature("AUTH {}".format(mechanism)) + for mechanism in supported: + with self.subTest(mechanism=mechanism): + smtp = smtplib.SMTP(HOST, self.port, + local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + smtp.ehlo('foo') + smtp.user, smtp.password = sim_auth[0], sim_auth[1] + method = 'auth_' + mechanism.lower().replace('-', '_') + resp = smtp.auth(mechanism, getattr(smtp, method)) + self.assertEqual(resp, (235, b'Authentication Succeeded')) + smtp.close() + + def test_quit_resets_greeting(self): + smtp = smtplib.SMTP(HOST, self.port, + local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + code, message = smtp.ehlo() + self.assertEqual(code, 250) + self.assertIn('size', smtp.esmtp_features) + smtp.quit() + self.assertNotIn('size', smtp.esmtp_features) + smtp.connect(HOST, self.port) + self.assertNotIn('size', smtp.esmtp_features) + smtp.ehlo_or_helo_if_needed() + self.assertIn('size', smtp.esmtp_features) + smtp.quit() + + def test_with_statement(self): + with smtplib.SMTP(HOST, self.port) as smtp: + code, message = smtp.noop() + self.assertEqual(code, 250) + self.assertRaises(smtplib.SMTPServerDisconnected, smtp.send, b'foo') + with smtplib.SMTP(HOST, self.port) as smtp: + smtp.close() + self.assertRaises(smtplib.SMTPServerDisconnected, smtp.send, b'foo') + + def test_with_statement_QUIT_failure(self): + with self.assertRaises(smtplib.SMTPResponseException) as error: + with smtplib.SMTP(HOST, self.port) as smtp: + smtp.noop() + self.serv._SMTPchannel.quit_response = '421 QUIT FAILED' + self.assertEqual(error.exception.smtp_code, 421) + self.assertEqual(error.exception.smtp_error, b'QUIT FAILED') + + #TODO: add tests for correct AUTH method fallback now that the + #test infrastructure can support it. + + # Issue 17498: make sure _rset does not raise SMTPServerDisconnected exception + def test__rest_from_mail_cmd(self): + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + smtp.noop() + self.serv._SMTPchannel.mail_response = '451 Requested action aborted' + self.serv._SMTPchannel.disconnect = True + with self.assertRaises(smtplib.SMTPSenderRefused): + smtp.sendmail('John', 'Sally', 'test message') + self.assertIsNone(smtp.sock) + + # Issue 5713: make sure close, not rset, is called if we get a 421 error + def test_421_from_mail_cmd(self): + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + smtp.noop() + self.serv._SMTPchannel.mail_response = '421 closing connection' + with self.assertRaises(smtplib.SMTPSenderRefused): + smtp.sendmail('John', 'Sally', 'test message') + self.assertIsNone(smtp.sock) + self.assertEqual(self.serv._SMTPchannel.rset_count, 0) + + def test_421_from_rcpt_cmd(self): + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + smtp.noop() + self.serv._SMTPchannel.rcpt_response = ['250 accepted', '421 closing'] + with self.assertRaises(smtplib.SMTPRecipientsRefused) as r: + smtp.sendmail('John', ['Sally', 'Frank', 'George'], 'test message') + self.assertIsNone(smtp.sock) + self.assertEqual(self.serv._SMTPchannel.rset_count, 0) + self.assertDictEqual(r.exception.args[0], {'Frank': (421, b'closing')}) + + def test_421_from_data_cmd(self): + class MySimSMTPChannel(SimSMTPChannel): + def found_terminator(self): + if self.smtp_state == self.DATA: + self.push('421 closing') + else: + super().found_terminator() + self.serv.channel_class = MySimSMTPChannel + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + smtp.noop() + with self.assertRaises(smtplib.SMTPDataError): + smtp.sendmail('John@foo.org', ['Sally@foo.org'], 'test message') + self.assertIsNone(smtp.sock) + self.assertEqual(self.serv._SMTPchannel.rcpt_count, 0) + + def test_smtputf8_NotSupportedError_if_no_server_support(self): + smtp = smtplib.SMTP( + HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + smtp.ehlo() + self.assertTrue(smtp.does_esmtp) + self.assertFalse(smtp.has_extn('smtputf8')) + self.assertRaises( + smtplib.SMTPNotSupportedError, + smtp.sendmail, + 'John', 'Sally', '', mail_options=['BODY=8BITMIME', 'SMTPUTF8']) + self.assertRaises( + smtplib.SMTPNotSupportedError, + smtp.mail, 'John', options=['BODY=8BITMIME', 'SMTPUTF8']) + + def test_send_unicode_without_SMTPUTF8(self): + smtp = smtplib.SMTP( + HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + self.assertRaises(UnicodeEncodeError, smtp.sendmail, 'Alice', 'Böb', '') + self.assertRaises(UnicodeEncodeError, smtp.mail, 'Älice') + + def test_send_message_error_on_non_ascii_addrs_if_no_smtputf8(self): + # This test is located here and not in the SMTPUTF8SimTests + # class because it needs a "regular" SMTP server to work + msg = EmailMessage() + msg['From'] = "Páolo " + msg['To'] = 'Dinsdale' + msg['Subject'] = 'Nudge nudge, wink, wink \u1F609' + smtp = smtplib.SMTP( + HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + with self.assertRaises(smtplib.SMTPNotSupportedError): + smtp.send_message(msg) + + def test_name_field_not_included_in_envelop_addresses(self): + smtp = smtplib.SMTP( + HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + + message = EmailMessage() + message['From'] = email.utils.formataddr(('Michaël', 'michael@example.com')) + message['To'] = email.utils.formataddr(('René', 'rene@example.com')) + + self.assertDictEqual(smtp.send_message(message), {}) + + self.assertEqual(self.serv._addresses['from'], 'michael@example.com') + self.assertEqual(self.serv._addresses['tos'], ['rene@example.com']) + + +class SimSMTPUTF8Server(SimSMTPServer): + + def __init__(self, *args, **kw): + # The base SMTP server turns these on automatically, but our test + # server is set up to munge the EHLO response, so we need to provide + # them as well. And yes, the call is to SMTPServer not SimSMTPServer. + self._extra_features = ['SMTPUTF8', '8BITMIME'] + smtpd.SMTPServer.__init__(self, *args, **kw) + + def handle_accepted(self, conn, addr): + self._SMTPchannel = self.channel_class( + self._extra_features, self, conn, addr, + decode_data=self._decode_data, + enable_SMTPUTF8=self.enable_SMTPUTF8, + ) + + def process_message(self, peer, mailfrom, rcpttos, data, mail_options=None, + rcpt_options=None): + self.last_peer = peer + self.last_mailfrom = mailfrom + self.last_rcpttos = rcpttos + self.last_message = data + self.last_mail_options = mail_options + self.last_rcpt_options = rcpt_options + + +class SMTPUTF8SimTests(unittest.TestCase): + + maxDiff = None + + def setUp(self): + self.thread_key = threading_helper.threading_setup() + self.real_getfqdn = socket.getfqdn + socket.getfqdn = mock_socket.getfqdn + self.serv_evt = threading.Event() + self.client_evt = threading.Event() + # Pick a random unused port by passing 0 for the port number + self.serv = SimSMTPUTF8Server((HOST, 0), ('nowhere', -1), + decode_data=False, + enable_SMTPUTF8=True) + # Keep a note of what port was assigned + self.port = self.serv.socket.getsockname()[1] + serv_args = (self.serv, self.serv_evt, self.client_evt) + self.thread = threading.Thread(target=debugging_server, args=serv_args) + self.thread.start() + + # wait until server thread has assigned a port number + self.serv_evt.wait() + self.serv_evt.clear() + + def tearDown(self): + socket.getfqdn = self.real_getfqdn + # indicate that the client is finished + self.client_evt.set() + # wait for the server thread to terminate + self.serv_evt.wait() + threading_helper.join_thread(self.thread) + del self.thread + self.doCleanups() + threading_helper.threading_cleanup(*self.thread_key) + + def test_test_server_supports_extensions(self): + smtp = smtplib.SMTP( + HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + smtp.ehlo() + self.assertTrue(smtp.does_esmtp) + self.assertTrue(smtp.has_extn('smtputf8')) + + def test_send_unicode_with_SMTPUTF8_via_sendmail(self): + m = '¡a test message containing unicode!'.encode('utf-8') + smtp = smtplib.SMTP( + HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + smtp.sendmail('Jőhn', 'Sálly', m, + mail_options=['BODY=8BITMIME', 'SMTPUTF8']) + self.assertEqual(self.serv.last_mailfrom, 'Jőhn') + self.assertEqual(self.serv.last_rcpttos, ['Sálly']) + self.assertEqual(self.serv.last_message, m) + self.assertIn('BODY=8BITMIME', self.serv.last_mail_options) + self.assertIn('SMTPUTF8', self.serv.last_mail_options) + self.assertEqual(self.serv.last_rcpt_options, []) + + def test_send_unicode_with_SMTPUTF8_via_low_level_API(self): + m = '¡a test message containing unicode!'.encode('utf-8') + smtp = smtplib.SMTP( + HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + smtp.ehlo() + self.assertEqual( + smtp.mail('Jő', options=['BODY=8BITMIME', 'SMTPUTF8']), + (250, b'OK')) + self.assertEqual(smtp.rcpt('János'), (250, b'OK')) + self.assertEqual(smtp.data(m), (250, b'OK')) + self.assertEqual(self.serv.last_mailfrom, 'Jő') + self.assertEqual(self.serv.last_rcpttos, ['János']) + self.assertEqual(self.serv.last_message, m) + self.assertIn('BODY=8BITMIME', self.serv.last_mail_options) + self.assertIn('SMTPUTF8', self.serv.last_mail_options) + self.assertEqual(self.serv.last_rcpt_options, []) + + def test_send_message_uses_smtputf8_if_addrs_non_ascii(self): + msg = EmailMessage() + msg['From'] = "Páolo " + msg['To'] = 'Dinsdale' + msg['Subject'] = 'Nudge nudge, wink, wink \u1F609' + # XXX I don't know why I need two \n's here, but this is an existing + # bug (if it is one) and not a problem with the new functionality. + msg.set_content("oh là là, know what I mean, know what I mean?\n\n") + # XXX smtpd converts received /r/n to /n, so we can't easily test that + # we are successfully sending /r/n :(. + expected = textwrap.dedent("""\ + From: Páolo + To: Dinsdale + Subject: Nudge nudge, wink, wink \u1F609 + Content-Type: text/plain; charset="utf-8" + Content-Transfer-Encoding: 8bit + MIME-Version: 1.0 + + oh là là, know what I mean, know what I mean? + """) + smtp = smtplib.SMTP( + HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + self.addCleanup(smtp.close) + self.assertEqual(smtp.send_message(msg), {}) + self.assertEqual(self.serv.last_mailfrom, 'főo@bar.com') + self.assertEqual(self.serv.last_rcpttos, ['Dinsdale']) + self.assertEqual(self.serv.last_message.decode(), expected) + self.assertIn('BODY=8BITMIME', self.serv.last_mail_options) + self.assertIn('SMTPUTF8', self.serv.last_mail_options) + self.assertEqual(self.serv.last_rcpt_options, []) + + +EXPECTED_RESPONSE = encode_base64(b'\0psu\0doesnotexist', eol='') + +class SimSMTPAUTHInitialResponseChannel(SimSMTPChannel): + def smtp_AUTH(self, arg): + # RFC 4954's AUTH command allows for an optional initial-response. + # Not all AUTH methods support this; some require a challenge. AUTH + # PLAIN does those, so test that here. See issue #15014. + args = arg.split() + if args[0].lower() == 'plain': + if len(args) == 2: + # AUTH PLAIN with the response base 64 + # encoded. Hard code the expected response for the test. + if args[1] == EXPECTED_RESPONSE: + self.push('235 Ok') + return + self.push('571 Bad authentication') + +class SimSMTPAUTHInitialResponseServer(SimSMTPServer): + channel_class = SimSMTPAUTHInitialResponseChannel + + +class SMTPAUTHInitialResponseSimTests(unittest.TestCase): + def setUp(self): + self.thread_key = threading_helper.threading_setup() + self.real_getfqdn = socket.getfqdn + socket.getfqdn = mock_socket.getfqdn + self.serv_evt = threading.Event() + self.client_evt = threading.Event() + # Pick a random unused port by passing 0 for the port number + self.serv = SimSMTPAUTHInitialResponseServer( + (HOST, 0), ('nowhere', -1), decode_data=True) + # Keep a note of what port was assigned + self.port = self.serv.socket.getsockname()[1] + serv_args = (self.serv, self.serv_evt, self.client_evt) + self.thread = threading.Thread(target=debugging_server, args=serv_args) + self.thread.start() + + # wait until server thread has assigned a port number + self.serv_evt.wait() + self.serv_evt.clear() + + def tearDown(self): + socket.getfqdn = self.real_getfqdn + # indicate that the client is finished + self.client_evt.set() + # wait for the server thread to terminate + self.serv_evt.wait() + threading_helper.join_thread(self.thread) + del self.thread + self.doCleanups() + threading_helper.threading_cleanup(*self.thread_key) + + def testAUTH_PLAIN_initial_response_login(self): + self.serv.add_feature('AUTH PLAIN') + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + smtp.login('psu', 'doesnotexist') + smtp.close() + + def testAUTH_PLAIN_initial_response_auth(self): + self.serv.add_feature('AUTH PLAIN') + smtp = smtplib.SMTP(HOST, self.port, local_hostname='localhost', + timeout=support.LOOPBACK_TIMEOUT) + smtp.user = 'psu' + smtp.password = 'doesnotexist' + code, response = smtp.auth('plain', smtp.auth_plain) + smtp.close() + self.assertEqual(code, 235) + + +if __name__ == '__main__': + unittest.main() diff --git a/Lib/test/test_smtpnet.py b/Lib/test/test_smtpnet.py new file mode 100644 index 0000000000..be25e961f7 --- /dev/null +++ b/Lib/test/test_smtpnet.py @@ -0,0 +1,90 @@ +import unittest +from test import support +from test.support import import_helper +from test.support import socket_helper +import smtplib +import socket + +ssl = import_helper.import_module("ssl") + +support.requires("network") + +def check_ssl_verifiy(host, port): + context = ssl.create_default_context() + with socket.create_connection((host, port)) as sock: + try: + sock = context.wrap_socket(sock, server_hostname=host) + except Exception: + return False + else: + sock.close() + return True + + +class SmtpTest(unittest.TestCase): + testServer = 'smtp.gmail.com' + remotePort = 587 + + def test_connect_starttls(self): + support.get_attribute(smtplib, 'SMTP_SSL') + context = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT) + context.check_hostname = False + context.verify_mode = ssl.CERT_NONE + with socket_helper.transient_internet(self.testServer): + server = smtplib.SMTP(self.testServer, self.remotePort) + try: + server.starttls(context=context) + except smtplib.SMTPException as e: + if e.args[0] == 'STARTTLS extension not supported by server.': + unittest.skip(e.args[0]) + else: + raise + server.ehlo() + server.quit() + + +class SmtpSSLTest(unittest.TestCase): + testServer = 'smtp.gmail.com' + remotePort = 465 + + def test_connect(self): + support.get_attribute(smtplib, 'SMTP_SSL') + with socket_helper.transient_internet(self.testServer): + server = smtplib.SMTP_SSL(self.testServer, self.remotePort) + server.ehlo() + server.quit() + + def test_connect_default_port(self): + support.get_attribute(smtplib, 'SMTP_SSL') + with socket_helper.transient_internet(self.testServer): + server = smtplib.SMTP_SSL(self.testServer) + server.ehlo() + server.quit() + + @support.requires_resource('walltime') + def test_connect_using_sslcontext(self): + context = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT) + context.check_hostname = False + context.verify_mode = ssl.CERT_NONE + support.get_attribute(smtplib, 'SMTP_SSL') + with socket_helper.transient_internet(self.testServer): + server = smtplib.SMTP_SSL(self.testServer, self.remotePort, context=context) + server.ehlo() + server.quit() + + def test_connect_using_sslcontext_verified(self): + with socket_helper.transient_internet(self.testServer): + can_verify = check_ssl_verifiy(self.testServer, self.remotePort) + if not can_verify: + self.skipTest("SSL certificate can't be verified") + + support.get_attribute(smtplib, 'SMTP_SSL') + context = ssl.create_default_context() + with socket_helper.transient_internet(self.testServer): + server = smtplib.SMTP_SSL(self.testServer, self.remotePort, context=context) + server.ehlo() + server.quit() + + +if __name__ == "__main__": + unittest.main() \ No newline at end of file diff --git a/Lib/test/test_socket.py b/Lib/test/test_socket.py index 5b82853102..ea544f6afa 100644 --- a/Lib/test/test_socket.py +++ b/Lib/test/test_socket.py @@ -4,30 +4,31 @@ from test.support import socket_helper from test.support import threading_helper +import _thread as thread +import array +import contextlib import errno +import gc import io import itertools -import socket -import select -import tempfile -import time -import traceback -import queue -import sys -import os -import platform -import array -import contextlib -from weakref import proxy -import signal import math +import os import pickle -import struct +import platform +import queue import random -import shutil +import re +import select +import signal +import socket import string -import _thread as thread +import struct +import sys +import tempfile import threading +import time +import traceback +from weakref import proxy try: import multiprocessing except ImportError: @@ -37,12 +38,15 @@ except ImportError: fcntl = None +support.requires_working_socket(module=True) + HOST = socket_helper.HOST # test unicode string and carriage return MSG = 'Michael Gilfix was here\u1234\r\n'.encode('utf-8') VSOCKPORT = 1234 AIX = platform.system() == "AIX" +WSL = "microsoft-standard-WSL" in platform.release() try: import _socket @@ -141,6 +145,17 @@ def _have_socket_bluetooth(): return True +def _have_socket_hyperv(): + """Check whether AF_HYPERV sockets are supported on this host.""" + try: + s = socket.socket(socket.AF_HYPERV, socket.SOCK_STREAM, socket.HV_PROTOCOL_RAW) + except (AttributeError, OSError): + return False + else: + s.close() + return True + + @contextlib.contextmanager def socket_setdefaulttimeout(timeout): old_timeout = socket.getdefaulttimeout() @@ -169,6 +184,8 @@ def socket_setdefaulttimeout(timeout): HAVE_SOCKET_BLUETOOTH = _have_socket_bluetooth() +HAVE_SOCKET_HYPERV = _have_socket_hyperv() + # Size in bytes of the int type SIZEOF_INT = array.array("i").itemsize @@ -199,24 +216,6 @@ def setUp(self): self.serv = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDPLITE) self.port = socket_helper.bind_port(self.serv) -class ThreadSafeCleanupTestCase: - """Subclass of unittest.TestCase with thread-safe cleanup methods. - - This subclass protects the addCleanup() and doCleanups() methods - with a recursive lock. - """ - - def __init__(self, *args, **kwargs): - super().__init__(*args, **kwargs) - self._cleanup_lock = threading.RLock() - - def addCleanup(self, *args, **kwargs): - with self._cleanup_lock: - return super().addCleanup(*args, **kwargs) - - def doCleanups(self, *args, **kwargs): - with self._cleanup_lock: - return super().doCleanups(*args, **kwargs) class SocketCANTest(unittest.TestCase): @@ -336,9 +335,7 @@ def serverExplicitReady(self): self.server_ready.set() def _setUp(self): - self.wait_threads = threading_helper.wait_threads_exit() - self.wait_threads.__enter__() - self.addCleanup(self.wait_threads.__exit__, None, None, None) + self.enterContext(threading_helper.wait_threads_exit()) self.server_ready = threading.Event() self.client_ready = threading.Event() @@ -485,6 +482,7 @@ def clientTearDown(self): ThreadableTest.clientTearDown(self) @unittest.skipIf(fcntl is None, "need fcntl") +@unittest.skipIf(WSL, 'VSOCK does not work on Microsoft WSL') @unittest.skipUnless(HAVE_SOCKET_VSOCK, 'VSOCK sockets required for this test.') @unittest.skipUnless(get_cid() != 2, @@ -501,6 +499,7 @@ def setUp(self): self.serv.bind((socket.VMADDR_CID_ANY, VSOCKPORT)) self.serv.listen() self.serverExplicitReady() + self.serv.settimeout(support.LOOPBACK_TIMEOUT) self.conn, self.connaddr = self.serv.accept() self.addCleanup(self.conn.close) @@ -591,17 +590,18 @@ class SocketTestBase(unittest.TestCase): def setUp(self): self.serv = self.newSocket() + self.addCleanup(self.close_server) self.bindServer() + def close_server(self): + self.serv.close() + self.serv = None + def bindServer(self): """Bind server socket and set self.serv_addr to its address.""" self.bindSock(self.serv) self.serv_addr = self.serv.getsockname() - def tearDown(self): - self.serv.close() - self.serv = None - class SocketListeningTestMixin(SocketTestBase): """Mixin to listen on the server socket.""" @@ -611,8 +611,7 @@ def setUp(self): self.serv.listen() -class ThreadedSocketTestMixin(ThreadSafeCleanupTestCase, SocketTestBase, - ThreadableTest): +class ThreadedSocketTestMixin(SocketTestBase, ThreadableTest): """Mixin to add client socket and allow client/server tests. Client socket is self.cli and its address is self.cli_addr. See @@ -686,15 +685,10 @@ class UnixSocketTestBase(SocketTestBase): # can't send anything that might be problematic for a privileged # user running the tests. - def setUp(self): - self.dir_path = tempfile.mkdtemp() - self.addCleanup(os.rmdir, self.dir_path) - super().setUp() - def bindSock(self, sock): - path = tempfile.mktemp(dir=self.dir_path) - socket_helper.bind_unix_socket(sock, path) + path = socket_helper.create_unix_domain_name() self.addCleanup(os_helper.unlink, path) + socket_helper.bind_unix_socket(sock, path) class UnixStreamBase(UnixSocketTestBase): """Base class for Unix-domain SOCK_STREAM tests.""" @@ -827,6 +821,14 @@ def requireSocket(*args): class GeneralModuleTests(unittest.TestCase): + # TODO: RUSTPYTHON + @unittest.expectedFailure + @unittest.skipUnless(_socket is not None, 'need _socket module') + def test_socket_type(self): + self.assertTrue(gc.is_tracked(_socket.socket)) + with self.assertRaisesRegex(TypeError, "immutable"): + _socket.socket.foo = 1 + def test_SocketType_is_socketobject(self): import _socket self.assertTrue(socket.SocketType is _socket.socket) @@ -958,6 +960,19 @@ def testWindowsSpecificConstants(self): socket.IPPROTO_L2TP socket.IPPROTO_SCTP + @unittest.skipIf(support.is_wasi, "WASI is missing these methods") + def test_socket_methods(self): + # socket methods that depend on a configure HAVE_ check. They should + # be present on all platforms except WASI. + names = [ + "_accept", "bind", "connect", "connect_ex", "getpeername", + "getsockname", "listen", "recvfrom", "recvfrom_into", "sendto", + "setsockopt", "shutdown" + ] + for name in names: + if not hasattr(socket.socket, name): + self.fail(f"socket method {name} is missing") + # TODO: RUSTPYTHON @unittest.expectedFailure @unittest.skipUnless(sys.platform == 'darwin', 'macOS specific test') @@ -1021,8 +1036,10 @@ def test_host_resolution(self): def test_host_resolution_bad_address(self): # These are all malformed IP addresses and expected not to resolve to - # any result. But some ISPs, e.g. AWS, may successfully resolve these - # IPs. + # any result. But some ISPs, e.g. AWS and AT&T, may successfully + # resolve these IPs. In particular, AT&T's DNS Error Assist service + # will break this test. See https://bugs.python.org/issue42092 for a + # workaround. explanation = ( "resolving an invalid IP address did not raise OSError; " "can be caused by a broken DNS server" @@ -1074,7 +1091,20 @@ def testInterfaceNameIndex(self): 'socket.if_indextoname() not available.') def testInvalidInterfaceIndexToName(self): self.assertRaises(OSError, socket.if_indextoname, 0) + self.assertRaises(OverflowError, socket.if_indextoname, -1) + self.assertRaises(OverflowError, socket.if_indextoname, 2**1000) self.assertRaises(TypeError, socket.if_indextoname, '_DEADBEEF') + if hasattr(socket, 'if_nameindex'): + indices = dict(socket.if_nameindex()) + for index in indices: + index2 = index + 2**32 + if index2 not in indices: + with self.assertRaises((OverflowError, OSError)): + socket.if_indextoname(index2) + for index in 2**32-1, 2**64-1: + if index not in indices: + with self.assertRaises((OverflowError, OSError)): + socket.if_indextoname(index) @unittest.skipUnless(hasattr(socket, 'if_nametoindex'), 'socket.if_nametoindex() not available.') @@ -1378,10 +1408,21 @@ def testStringToIPv6(self): def testSockName(self): # Testing getsockname() - port = socket_helper.find_unused_port() sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) self.addCleanup(sock.close) - sock.bind(("0.0.0.0", port)) + + # Since find_unused_port() is inherently subject to race conditions, we + # call it a couple times if necessary. + for i in itertools.count(): + port = socket_helper.find_unused_port() + try: + sock.bind(("0.0.0.0", port)) + except OSError as e: + if e.errno != errno.EADDRINUSE or i == 5: + raise + else: + break + name = sock.getsockname() # XXX(nnorwitz): http://tinyurl.com/os5jz seems to indicate # it reasonable to get the host's addr in addition to 0.0.0.0. @@ -1493,8 +1534,6 @@ def test_sio_loopback_fast_path(self): raise self.assertRaises(TypeError, s.ioctl, socket.SIO_LOOPBACK_FAST_PATH, None) - # TODO: RUSTPYTHON, AssertionError: '2' != 'AddressFamily.AF_INET' - @unittest.expectedFailure def testGetaddrinfo(self): try: socket.getaddrinfo('localhost', 80) @@ -1525,9 +1564,11 @@ def testGetaddrinfo(self): infos = socket.getaddrinfo(HOST, 80, socket.AF_INET, socket.SOCK_STREAM) for family, type, _, _, _ in infos: self.assertEqual(family, socket.AF_INET) - self.assertEqual(str(family), 'AddressFamily.AF_INET') + self.assertEqual(repr(family), '' % family.value) + self.assertEqual(str(family), str(family.value)) self.assertEqual(type, socket.SOCK_STREAM) - self.assertEqual(str(type), 'SocketKind.SOCK_STREAM') + self.assertEqual(repr(type), '' % type.value) + self.assertEqual(str(type), str(type.value)) infos = socket.getaddrinfo(HOST, None, 0, socket.SOCK_STREAM) for _, socktype, _, _, _ in infos: self.assertEqual(socktype, socket.SOCK_STREAM) @@ -1574,11 +1615,61 @@ def testGetaddrinfo(self): except socket.gaierror: pass + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_getaddrinfo_int_port_overflow(self): + # gh-74895: Test that getaddrinfo does not raise OverflowError on port. + # + # POSIX getaddrinfo() never specify the valid range for "service" + # decimal port number values. For IPv4 and IPv6 they are technically + # unsigned 16-bit values, but the API is protocol agnostic. Which values + # trigger an error from the C library function varies by platform as + # they do not all perform validation. + + # The key here is that we don't want to produce OverflowError as Python + # prior to 3.12 did for ints outside of a [LONG_MIN, LONG_MAX] range. + # Leave the error up to the underlying string based platform C API. + + from _testcapi import ULONG_MAX, LONG_MAX, LONG_MIN + try: + socket.getaddrinfo(None, ULONG_MAX + 1, type=socket.SOCK_STREAM) + except OverflowError: + # Platforms differ as to what values consitute a getaddrinfo() error + # return. Some fail for LONG_MAX+1, others ULONG_MAX+1, and Windows + # silently accepts such huge "port" aka "service" numeric values. + self.fail("Either no error or socket.gaierror expected.") + except socket.gaierror: + pass + + try: + socket.getaddrinfo(None, LONG_MAX + 1, type=socket.SOCK_STREAM) + except OverflowError: + self.fail("Either no error or socket.gaierror expected.") + except socket.gaierror: + pass + + try: + socket.getaddrinfo(None, LONG_MAX - 0xffff + 1, type=socket.SOCK_STREAM) + except OverflowError: + self.fail("Either no error or socket.gaierror expected.") + except socket.gaierror: + pass + + try: + socket.getaddrinfo(None, LONG_MIN - 1, type=socket.SOCK_STREAM) + except OverflowError: + self.fail("Either no error or socket.gaierror expected.") + except socket.gaierror: + pass + + socket.getaddrinfo(None, 0, type=socket.SOCK_STREAM) # No error expected. + socket.getaddrinfo(None, 0xffff, type=socket.SOCK_STREAM) # No error expected. + def test_getnameinfo(self): # only IP addresses are allowed self.assertRaises(OSError, socket.getnameinfo, ('mail.python.org',0), 0) - @unittest.expectedFailureIf(sys.platform != "darwin", "TODO: RUSTPYTHON; socket.gethostbyname_ex") + @unittest.skip("TODO: RUSTPYTHON: flaky on CI?") @unittest.skipUnless(support.is_resource_enabled('network'), 'network is not enabled') def test_idna(self): @@ -1746,6 +1837,10 @@ def test_getaddrinfo_ipv6_basic(self): ) self.assertEqual(sockaddr, ('ff02::1de:c0:face:8d', 1234, 0, 0)) + def test_getfqdn_filter_localhost(self): + self.assertEqual(socket.getfqdn(), socket.getfqdn("0.0.0.0")) + self.assertEqual(socket.getfqdn(), socket.getfqdn("::")) + @unittest.skipUnless(socket_helper.IPV6_ENABLED, 'IPv6 required for this test.') @unittest.skipIf(sys.platform == 'win32', 'does not work on Windows') @unittest.skipIf(AIX, 'Symbolic scope id does not work') @@ -1801,14 +1896,14 @@ def test_getnameinfo_ipv6_scopeid_numeric(self): nameinfo = socket.getnameinfo(sockaddr, socket.NI_NUMERICHOST | socket.NI_NUMERICSERV) self.assertEqual(nameinfo, ('ff02::1de:c0:face:8d%' + str(ifindex), '1234')) - # TODO: RUSTPYTHON, AssertionError: '2' != 'AddressFamily.AF_INET' - @unittest.expectedFailure def test_str_for_enums(self): # Make sure that the AF_* and SOCK_* constants have enum-like string # reprs. with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s: - self.assertEqual(str(s.family), 'AddressFamily.AF_INET') - self.assertEqual(str(s.type), 'SocketKind.SOCK_STREAM') + self.assertEqual(repr(s.family), '' % s.family.value) + self.assertEqual(repr(s.type), '' % s.type.value) + self.assertEqual(str(s.family), str(s.family.value)) + self.assertEqual(str(s.type), str(s.type.value)) @unittest.expectedFailureIf(sys.platform.startswith("linux"), "TODO: RUSTPYTHON, AssertionError: 526337 != ") def test_socket_consistent_sock_type(self): @@ -1902,17 +1997,18 @@ def test_socket_fileno(self): self._test_socket_fileno(s, socket.AF_INET6, socket.SOCK_STREAM) if hasattr(socket, "AF_UNIX"): - tmpdir = tempfile.mkdtemp() - self.addCleanup(shutil.rmtree, tmpdir) + unix_name = socket_helper.create_unix_domain_name() + self.addCleanup(os_helper.unlink, unix_name) + s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) - self.addCleanup(s.close) - try: - s.bind(os.path.join(tmpdir, 'socket')) - except PermissionError: - pass - else: - self._test_socket_fileno(s, socket.AF_UNIX, - socket.SOCK_STREAM) + with s: + try: + s.bind(unix_name) + except PermissionError: + pass + else: + self._test_socket_fileno(s, socket.AF_UNIX, + socket.SOCK_STREAM) def test_socket_fileno_rejects_float(self): with self.assertRaises(TypeError): @@ -1956,6 +2052,49 @@ def test_socket_fileno_requires_socket_fd(self): fileno=afile.fileno()) self.assertEqual(cm.exception.errno, errno.ENOTSOCK) + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_addressfamily_enum(self): + import _socket, enum + CheckedAddressFamily = enum._old_convert_( + enum.IntEnum, 'AddressFamily', 'socket', + lambda C: C.isupper() and C.startswith('AF_'), + source=_socket, + ) + enum._test_simple_enum(CheckedAddressFamily, socket.AddressFamily) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_socketkind_enum(self): + import _socket, enum + CheckedSocketKind = enum._old_convert_( + enum.IntEnum, 'SocketKind', 'socket', + lambda C: C.isupper() and C.startswith('SOCK_'), + source=_socket, + ) + enum._test_simple_enum(CheckedSocketKind, socket.SocketKind) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_msgflag_enum(self): + import _socket, enum + CheckedMsgFlag = enum._old_convert_( + enum.IntFlag, 'MsgFlag', 'socket', + lambda C: C.isupper() and C.startswith('MSG_'), + source=_socket, + ) + enum._test_simple_enum(CheckedMsgFlag, socket.MsgFlag) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_addressinfo_enum(self): + import _socket, enum + CheckedAddressInfo = enum._old_convert_( + enum.IntFlag, 'AddressInfo', 'socket', + lambda C: C.isupper() and C.startswith('AI_'), + source=_socket) + enum._test_simple_enum(CheckedAddressInfo, socket.AddressInfo) + @unittest.skipUnless(HAVE_SOCKET_CAN, 'SocketCan required for this test.') class BasicCANTest(unittest.TestCase): @@ -2449,6 +2588,58 @@ def testCreateScoSocket(self): pass +@unittest.skipUnless(HAVE_SOCKET_HYPERV, + 'Hyper-V sockets required for this test.') +class BasicHyperVTest(unittest.TestCase): + + def testHyperVConstants(self): + socket.HVSOCKET_CONNECT_TIMEOUT + socket.HVSOCKET_CONNECT_TIMEOUT_MAX + socket.HVSOCKET_CONNECTED_SUSPEND + socket.HVSOCKET_ADDRESS_FLAG_PASSTHRU + socket.HV_GUID_ZERO + socket.HV_GUID_WILDCARD + socket.HV_GUID_BROADCAST + socket.HV_GUID_CHILDREN + socket.HV_GUID_LOOPBACK + socket.HV_GUID_PARENT + + def testCreateHyperVSocketWithUnknownProtoFailure(self): + expected = r"\[WinError 10041\]" + with self.assertRaisesRegex(OSError, expected): + socket.socket(socket.AF_HYPERV, socket.SOCK_STREAM) + + def testCreateHyperVSocketAddrNotTupleFailure(self): + expected = "connect(): AF_HYPERV address must be tuple, not str" + with socket.socket(socket.AF_HYPERV, socket.SOCK_STREAM, socket.HV_PROTOCOL_RAW) as s: + with self.assertRaisesRegex(TypeError, re.escape(expected)): + s.connect(socket.HV_GUID_ZERO) + + def testCreateHyperVSocketAddrNotTupleOf2StrsFailure(self): + expected = "AF_HYPERV address must be a str tuple (vm_id, service_id)" + with socket.socket(socket.AF_HYPERV, socket.SOCK_STREAM, socket.HV_PROTOCOL_RAW) as s: + with self.assertRaisesRegex(TypeError, re.escape(expected)): + s.connect((socket.HV_GUID_ZERO,)) + + def testCreateHyperVSocketAddrNotTupleOfStrsFailure(self): + expected = "AF_HYPERV address must be a str tuple (vm_id, service_id)" + with socket.socket(socket.AF_HYPERV, socket.SOCK_STREAM, socket.HV_PROTOCOL_RAW) as s: + with self.assertRaisesRegex(TypeError, re.escape(expected)): + s.connect((1, 2)) + + def testCreateHyperVSocketAddrVmIdNotValidUUIDFailure(self): + expected = "connect(): AF_HYPERV address vm_id is not a valid UUID string" + with socket.socket(socket.AF_HYPERV, socket.SOCK_STREAM, socket.HV_PROTOCOL_RAW) as s: + with self.assertRaisesRegex(ValueError, re.escape(expected)): + s.connect(("00", socket.HV_GUID_ZERO)) + + def testCreateHyperVSocketAddrServiceIdNotValidUUIDFailure(self): + expected = "connect(): AF_HYPERV address service_id is not a valid UUID string" + with socket.socket(socket.AF_HYPERV, socket.SOCK_STREAM, socket.HV_PROTOCOL_RAW) as s: + with self.assertRaisesRegex(ValueError, re.escape(expected)): + s.connect((socket.HV_GUID_ZERO, "00")) + + class BasicTCPTest(SocketConnectedTest): def __init__(self, methodName='runTest'): @@ -2658,7 +2849,7 @@ def _testRecvFromNegative(self): # here assumes that datagram delivery on the local machine will be # reliable. -class SendrecvmsgBase(ThreadSafeCleanupTestCase): +class SendrecvmsgBase: # Base class for sendmsg()/recvmsg() tests. # Time in seconds to wait before considering a test failed, or @@ -4525,7 +4716,6 @@ def testInterruptedRecvmsgIntoTimeout(self): @unittest.skipUnless(hasattr(signal, "alarm") or hasattr(signal, "setitimer"), "Don't have signal.alarm or signal.setitimer") class InterruptedSendTimeoutTest(InterruptedTimeoutBase, - ThreadSafeCleanupTestCase, SocketListeningTestMixin, TCPTestBase): # Test interrupting the interruptible send*() methods with signals # when a timeout is set. @@ -5136,6 +5326,7 @@ def mocked_socket_module(self): finally: socket.socket = old_socket + @socket_helper.skip_if_tcp_blackhole def test_connect(self): port = socket_helper.find_unused_port() cli = socket.socket(socket.AF_INET, socket.SOCK_STREAM) @@ -5144,6 +5335,7 @@ def test_connect(self): cli.connect((HOST, port)) self.assertEqual(cm.exception.errno, errno.ECONNREFUSED) + @socket_helper.skip_if_tcp_blackhole def test_create_connection(self): # Issue #9792: errors raised by create_connection() should have # a proper errno attribute. @@ -5168,6 +5360,26 @@ def test_create_connection(self): expected_errnos = socket_helper.get_socket_conn_refused_errs() self.assertIn(cm.exception.errno, expected_errnos) + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_create_connection_all_errors(self): + port = socket_helper.find_unused_port() + try: + socket.create_connection((HOST, port), all_errors=True) + except ExceptionGroup as e: + eg = e + else: + self.fail('expected connection to fail') + + self.assertIsInstance(eg, ExceptionGroup) + for e in eg.exceptions: + self.assertIsInstance(e, OSError) + + addresses = socket.getaddrinfo( + 'localhost', port, 0, socket.SOCK_STREAM) + # assert that we got an exception for each address + self.assertEqual(len(addresses), len(eg.exceptions)) + def test_create_connection_timeout(self): # Issue #9792: create_connection() should not recast timeout errors # as generic socket errors. @@ -5184,6 +5396,7 @@ def test_create_connection_timeout(self): class NetworkConnectionAttributesTest(SocketTCPTest, ThreadableTest): + cli = None def __init__(self, methodName='runTest'): SocketTCPTest.__init__(self, methodName=methodName) @@ -5193,7 +5406,8 @@ def clientSetUp(self): self.source_port = socket_helper.find_unused_port() def clientTearDown(self): - self.cli.close() + if self.cli is not None: + self.cli.close() self.cli = None ThreadableTest.clientTearDown(self) @@ -5328,10 +5542,10 @@ def alarm_handler(signal, frame): self.fail("caught timeout instead of Alarm") except Alarm: pass - except: + except BaseException as e: self.fail("caught other exception instead of Alarm:" " %s(%s):\n%s" % - (sys.exc_info()[:2] + (traceback.format_exc(),))) + (type(e), e, traceback.format_exc())) else: self.fail("nothing caught") finally: @@ -5519,8 +5733,6 @@ def testBytesAddr(self): self.addCleanup(os_helper.unlink, path) self.assertEqual(self.sock.getsockname(), path) - # TODO: RUSTPYTHON, surrogateescape - @unittest.expectedFailure def testSurrogateescapeBind(self): # Test binding to a valid non-ASCII pathname, with the # non-ASCII bytes supplied using surrogateescape encoding. @@ -6234,6 +6446,7 @@ def _testWithTimeoutTriggeredSend(self): def testWithTimeoutTriggeredSend(self): conn = self.accept_conn() conn.recv(88192) + # bpo-45212: the wait here needs to be longer than the client-side timeout (0.01s) time.sleep(1) # errors @@ -6314,12 +6527,16 @@ def test_sha256(self): # TODO: RUSTPYTHON, OSError: bind(): bad family @unittest.expectedFailure def test_hmac_sha1(self): - expected = bytes.fromhex("effcdf6ae5eb2fa2d27416d5f184df9c259a7c79") + # gh-109396: In FIPS mode, Linux 6.5 requires a key + # of at least 112 bits. Use a key of 152 bits. + key = b"Python loves AF_ALG" + data = b"what do ya want for nothing?" + expected = bytes.fromhex("193dbb43c6297b47ea6277ec0ce67119a3f3aa66") with self.create_alg('hash', 'hmac(sha1)') as algo: - algo.setsockopt(socket.SOL_ALG, socket.ALG_SET_KEY, b"Jefe") + algo.setsockopt(socket.SOL_ALG, socket.ALG_SET_KEY, key) op, _ = algo.accept() with op: - op.sendall(b"what do ya want for nothing?") + op.sendall(data) self.assertEqual(op.recv(512), expected) # Although it should work with 3.19 and newer the test blocks on diff --git a/Lib/test/test_sqlite3/test_dbapi.py b/Lib/test/test_sqlite3/test_dbapi.py index bbc151fcb7..56cd8f8a68 100644 --- a/Lib/test/test_sqlite3/test_dbapi.py +++ b/Lib/test/test_sqlite3/test_dbapi.py @@ -591,7 +591,7 @@ def test_connection_bad_reinit(self): ((v,) for v in range(3))) -@unittest.skip("TODO: RUSTPYHON") +@unittest.skip("TODO: RUSTPYTHON") class UninitialisedConnectionTests(unittest.TestCase): def setUp(self): self.cx = sqlite.Connection.__new__(sqlite.Connection) diff --git a/Lib/test/test_sqlite3/test_types.py b/Lib/test/test_sqlite3/test_types.py index d7631ec938..45f30824d0 100644 --- a/Lib/test/test_sqlite3/test_types.py +++ b/Lib/test/test_sqlite3/test_types.py @@ -95,8 +95,6 @@ def test_too_large_int(self): row = self.cur.fetchone() self.assertIsNone(row) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_string_with_surrogates(self): for value in 0xd8ff, 0xdcff: with self.assertRaises(UnicodeEncodeError): diff --git a/Lib/test/test_stringprep.py b/Lib/test/test_stringprep.py index 118f3f0867..d4b4a13d0d 100644 --- a/Lib/test/test_stringprep.py +++ b/Lib/test/test_stringprep.py @@ -6,8 +6,6 @@ from stringprep import * class StringprepTests(unittest.TestCase): - # TODO: RUSTPYTHON - @unittest.expectedFailure def test(self): self.assertTrue(in_table_a1("\u0221")) self.assertFalse(in_table_a1("\u0222")) diff --git a/Lib/test/test_struct.py b/Lib/test/test_struct.py index 6cb7b610e5..bc801a08d6 100644 --- a/Lib/test/test_struct.py +++ b/Lib/test/test_struct.py @@ -9,7 +9,7 @@ import weakref from test import support -from test.support import import_helper +from test.support import import_helper, suppress_immortalization from test.support.script_helper import assert_python_ok ISBIGENDIAN = sys.byteorder == "big" @@ -96,6 +96,13 @@ def test_new_features(self): ('10s', b'helloworld', b'helloworld', b'helloworld', 0), ('11s', b'helloworld', b'helloworld\0', b'helloworld\0', 1), ('20s', b'helloworld', b'helloworld'+10*b'\0', b'helloworld'+10*b'\0', 1), + ('0p', b'helloworld', b'', b'', 1), + ('1p', b'helloworld', b'\x00', b'\x00', 1), + ('2p', b'helloworld', b'\x01h', b'\x01h', 1), + ('10p', b'helloworld', b'\x09helloworl', b'\x09helloworl', 1), + ('11p', b'helloworld', b'\x0Ahelloworld', b'\x0Ahelloworld', 0), + ('12p', b'helloworld', b'\x0Ahelloworld\0', b'\x0Ahelloworld\0', 1), + ('20p', b'helloworld', b'\x0Ahelloworld'+9*b'\0', b'\x0Ahelloworld'+9*b'\0', 1), ('b', 7, b'\7', b'\7', 0), ('b', -7, b'\371', b'\371', 0), ('B', 7, b'\7', b'\7', 0), @@ -339,6 +346,7 @@ def assertStructError(func, *args, **kwargs): def test_p_code(self): # Test p ("Pascal string") code. for code, input, expected, expectedback in [ + ('0p', b'abc', b'', b''), ('p', b'abc', b'\x00', b''), ('1p', b'abc', b'\x00', b''), ('2p', b'abc', b'\x01a', b'a'), @@ -523,6 +531,9 @@ def __bool__(self): for c in [b'\x01', b'\x7f', b'\xff', b'\x0f', b'\xf0']: self.assertTrue(struct.unpack('>?', c)[0]) + self.assertTrue(struct.unpack('': + for int_type in 'BHILQ': + test_error_msg(prefix, int_type, True) + for int_type in 'bhilq': + test_error_msg(prefix, int_type, False) + + int_type = 'N' + test_error_msg('@', int_type, True) + + int_type = 'n' + test_error_msg('@', int_type, False) + + @support.cpython_only + def test_issue98248_error_propagation(self): + class Div0: + def __index__(self): + 1 / 0 + + def test_error_propagation(fmt_str): + with self.subTest(format_str=fmt_str, exception="ZeroDivisionError"): + with self.assertRaises(ZeroDivisionError): + struct.pack(fmt_str, Div0()) + + for prefix in '@=<>': + for int_type in 'BHILQbhilq': + test_error_propagation(prefix + int_type) + + test_error_propagation('N') + test_error_propagation('n') + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_struct_subclass_instantiation(self): + # Regression test for https://github.com/python/cpython/issues/112358 + class MyStruct(struct.Struct): + def __init__(self): + super().__init__('>h') + + my_struct = MyStruct() + self.assertEqual(my_struct.pack(12345), b'\x30\x39') + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_repr(self): + s = struct.Struct('=i2H') + self.assertEqual(repr(s), f'Struct({s.format!r})') class UnpackIteratorTest(unittest.TestCase): """ @@ -895,4 +976,4 @@ def test_half_float(self): if __name__ == '__main__': - unittest.main() + unittest.main() \ No newline at end of file diff --git a/Lib/test/test_subprocess.py b/Lib/test/test_subprocess.py index bc898567f7..5a75971be6 100644 --- a/Lib/test/test_subprocess.py +++ b/Lib/test/test_subprocess.py @@ -1056,8 +1056,6 @@ def test_writes_before_communicate(self): self.assertEqual(stdout, b"bananasplit") self.assertEqual(stderr, b"") - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_universal_newlines_and_text(self): args = [ sys.executable, "-c", @@ -1097,7 +1095,6 @@ def test_universal_newlines_and_text(self): self.assertEqual(p.stdout.read(), "line4\nline5\nline6\nline7\nline8") - @unittest.expectedFailureIfWindows("TODO: RUSTPYTHON") def test_universal_newlines_communicate(self): # universal newlines through communicate() p = subprocess.Popen([sys.executable, "-c", @@ -1149,7 +1146,6 @@ def test_universal_newlines_communicate_input_none(self): p.communicate() self.assertEqual(p.returncode, 0) - @unittest.expectedFailureIfWindows("TODO: RUSTPYTHON") def test_universal_newlines_communicate_stdin_stdout_stderr(self): # universal newlines through communicate(), with stdin, stdout, stderr p = subprocess.Popen([sys.executable, "-c", @@ -1202,8 +1198,6 @@ def test_universal_newlines_communicate_encodings(self): stdout, stderr = popen.communicate(input='') self.assertEqual(stdout, '1\n2\n3\n4') - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_communicate_errors(self): for errors, expected in [ ('ignore', ''), @@ -2790,8 +2784,6 @@ def prepare(): else: self.fail("Expected ValueError or subprocess.SubprocessError") - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_undecodable_env(self): for key, value in (('test', 'abc\uDCFF'), ('test\uDCFF', '42')): encoded_value = value.encode("ascii", "surrogateescape") @@ -3805,7 +3797,6 @@ def popen_via_context_manager(*args, **kwargs): raise KeyboardInterrupt # Test how __exit__ handles ^C. self._test_keyboardinterrupt_no_kill(popen_via_context_manager) - @unittest.expectedFailureIfWindows("TODO: RUSTPYTHON") def test_getoutput(self): self.assertEqual(subprocess.getoutput('echo xyzzy'), 'xyzzy') self.assertEqual(subprocess.getstatusoutput('echo xyzzy'), diff --git a/Lib/test/test_syntax.py b/Lib/test/test_syntax.py index 9726d3cc1e..7e46773047 100644 --- a/Lib/test/test_syntax.py +++ b/Lib/test/test_syntax.py @@ -742,7 +742,8 @@ >>> f(x.y=1) Traceback (most recent call last): SyntaxError: expression cannot contain assignment, perhaps you meant "=="? ->>> f((x)=2) +# TODO: RUSTPYTHON +>>> f((x)=2) # doctest: +SKIP Traceback (most recent call last): SyntaxError: expression cannot contain assignment, perhaps you meant "=="? >>> f(True=1) @@ -1649,7 +1650,8 @@ Invalid pattern matching constructs: - >>> match ...: + # TODO: RUSTPYTHON nothing raised. + >>> match ...: # doctest: +SKIP ... case 42 as _: ... ... Traceback (most recent call last): @@ -1876,12 +1878,16 @@ def test_expression_with_assignment(self): offset=7 ) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_curly_brace_after_primary_raises_immediately(self): self._check_error("f{}", "invalid syntax", mode="single") def test_assign_call(self): self._check_error("f() = 1", "assign") + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_assign_del(self): self._check_error("del (,)", "invalid syntax") self._check_error("del 1", "cannot delete literal") @@ -1994,6 +2000,8 @@ def test_bad_outdent(self): "unindent does not match .* level", subclass=IndentationError) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_kwargs_last(self): self._check_error("int(base=10, '2')", "positional argument follows keyword argument") @@ -2005,6 +2013,8 @@ def test_kwargs_last2(self): "positional argument follows " "keyword argument unpacking") + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_kwargs_last3(self): self._check_error("int(**{'base': 10}, *['2'])", "iterable argument unpacking follows " @@ -2073,8 +2083,6 @@ def test_nested_named_except_blocks(self): code += f"{' '*4*12}pass" self._check_error(code, "too many statically nested blocks") - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_barry_as_flufl_with_syntax_errors(self): # The "barry_as_flufl" rule can produce some "bugs-at-a-distance" if # is reading the wrong token in the presence of syntax errors later @@ -2092,6 +2100,8 @@ def func2(): """ self._check_error(code, "expected ':'") + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_invalid_line_continuation_error_position(self): self._check_error(r"a = 3 \ 4", "unexpected character after line continuation character", @@ -2103,6 +2113,8 @@ def test_invalid_line_continuation_error_position(self): "unexpected character after line continuation character", lineno=3, offset=4) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_invalid_line_continuation_left_recursive(self): # Check bpo-42218: SyntaxErrors following left-recursive rules # (t_primary_raw in this case) need to be tested explicitly @@ -2146,6 +2158,8 @@ def case(x): """ compile(code, "", "exec") + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_multiline_compiler_error_points_to_the_end(self): self._check_error( "call(\na=1,\na=1\n)", diff --git a/Lib/test/test_tarfile.py b/Lib/test/test_tarfile.py index 4ae81cb99f..0fed89c773 100644 --- a/Lib/test/test_tarfile.py +++ b/Lib/test/test_tarfile.py @@ -31,6 +31,8 @@ import lzma except ImportError: lzma = None +# XXX: RUSTPYTHON; xz is not supported yet +lzma = None def sha256sum(data): return sha256(data).hexdigest() @@ -2086,11 +2088,6 @@ class UstarUnicodeTest(UnicodeTest, unittest.TestCase): format = tarfile.USTAR_FORMAT - # TODO: RUSTPYTHON - @unittest.expectedFailure - def test_uname_unicode(self): - super().test_uname_unicode() - # Test whether the utf-8 encoded version of a filename exceeds the 100 # bytes name field limit (every occurrence of '\xff' will be expanded to 2 # bytes). @@ -2170,13 +2167,6 @@ class GNUUnicodeTest(UnicodeTest, unittest.TestCase): format = tarfile.GNU_FORMAT - # TODO: RUSTPYTHON - @unittest.expectedFailure - def test_uname_unicode(self): - super().test_uname_unicode() - - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_bad_pax_header(self): # Test for issue #8633. GNU tar <= 1.23 creates raw binary fields # without a hdrcharset=BINARY header. @@ -2198,8 +2188,6 @@ class PAXUnicodeTest(UnicodeTest, unittest.TestCase): # PAX_FORMAT ignores encoding in write mode. test_unicode_filename_error = None - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_binary_header(self): # Test a POSIX.1-2008 compatible header with a hdrcharset=BINARY field. for encoding, name in ( diff --git a/Lib/test/test_telnetlib.py b/Lib/test/test_telnetlib.py deleted file mode 100644 index 41c4fcd419..0000000000 --- a/Lib/test/test_telnetlib.py +++ /dev/null @@ -1,402 +0,0 @@ -import socket -import selectors -import telnetlib -import threading -import contextlib - -from test import support -from test.support import socket_helper -import unittest - -HOST = socket_helper.HOST - -def server(evt, serv): - serv.listen() - evt.set() - try: - conn, addr = serv.accept() - conn.close() - except TimeoutError: - pass - finally: - serv.close() - -class GeneralTests(unittest.TestCase): - - def setUp(self): - self.evt = threading.Event() - self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) - self.sock.settimeout(60) # Safety net. Look issue 11812 - self.port = socket_helper.bind_port(self.sock) - self.thread = threading.Thread(target=server, args=(self.evt,self.sock)) - self.thread.daemon = True - self.thread.start() - self.evt.wait() - - def tearDown(self): - self.thread.join() - del self.thread # Clear out any dangling Thread objects. - - def testBasic(self): - # connects - telnet = telnetlib.Telnet(HOST, self.port) - telnet.sock.close() - - def testContextManager(self): - with telnetlib.Telnet(HOST, self.port) as tn: - self.assertIsNotNone(tn.get_socket()) - self.assertIsNone(tn.get_socket()) - - def testTimeoutDefault(self): - self.assertTrue(socket.getdefaulttimeout() is None) - socket.setdefaulttimeout(30) - try: - telnet = telnetlib.Telnet(HOST, self.port) - finally: - socket.setdefaulttimeout(None) - self.assertEqual(telnet.sock.gettimeout(), 30) - telnet.sock.close() - - def testTimeoutNone(self): - # None, having other default - self.assertTrue(socket.getdefaulttimeout() is None) - socket.setdefaulttimeout(30) - try: - telnet = telnetlib.Telnet(HOST, self.port, timeout=None) - finally: - socket.setdefaulttimeout(None) - self.assertTrue(telnet.sock.gettimeout() is None) - telnet.sock.close() - - def testTimeoutValue(self): - telnet = telnetlib.Telnet(HOST, self.port, timeout=30) - self.assertEqual(telnet.sock.gettimeout(), 30) - telnet.sock.close() - - def testTimeoutOpen(self): - telnet = telnetlib.Telnet() - telnet.open(HOST, self.port, timeout=30) - self.assertEqual(telnet.sock.gettimeout(), 30) - telnet.sock.close() - - def testGetters(self): - # Test telnet getter methods - telnet = telnetlib.Telnet(HOST, self.port, timeout=30) - t_sock = telnet.sock - self.assertEqual(telnet.get_socket(), t_sock) - self.assertEqual(telnet.fileno(), t_sock.fileno()) - telnet.sock.close() - -class SocketStub(object): - ''' a socket proxy that re-defines sendall() ''' - def __init__(self, reads=()): - self.reads = list(reads) # Intentionally make a copy. - self.writes = [] - self.block = False - def sendall(self, data): - self.writes.append(data) - def recv(self, size): - out = b'' - while self.reads and len(out) < size: - out += self.reads.pop(0) - if len(out) > size: - self.reads.insert(0, out[size:]) - out = out[:size] - return out - -class TelnetAlike(telnetlib.Telnet): - def fileno(self): - raise NotImplementedError() - def close(self): pass - def sock_avail(self): - return (not self.sock.block) - def msg(self, msg, *args): - with support.captured_stdout() as out: - telnetlib.Telnet.msg(self, msg, *args) - self._messages += out.getvalue() - return - -class MockSelector(selectors.BaseSelector): - - def __init__(self): - self.keys = {} - - @property - def resolution(self): - return 1e-3 - - def register(self, fileobj, events, data=None): - key = selectors.SelectorKey(fileobj, 0, events, data) - self.keys[fileobj] = key - return key - - def unregister(self, fileobj): - return self.keys.pop(fileobj) - - def select(self, timeout=None): - block = False - for fileobj in self.keys: - if isinstance(fileobj, TelnetAlike): - block = fileobj.sock.block - break - if block: - return [] - else: - return [(key, key.events) for key in self.keys.values()] - - def get_map(self): - return self.keys - - -@contextlib.contextmanager -def test_socket(reads): - def new_conn(*ignored): - return SocketStub(reads) - try: - old_conn = socket.create_connection - socket.create_connection = new_conn - yield None - finally: - socket.create_connection = old_conn - return - -def test_telnet(reads=(), cls=TelnetAlike): - ''' return a telnetlib.Telnet object that uses a SocketStub with - reads queued up to be read ''' - for x in reads: - assert type(x) is bytes, x - with test_socket(reads): - telnet = cls('dummy', 0) - telnet._messages = '' # debuglevel output - return telnet - -class ExpectAndReadTestCase(unittest.TestCase): - def setUp(self): - self.old_selector = telnetlib._TelnetSelector - telnetlib._TelnetSelector = MockSelector - def tearDown(self): - telnetlib._TelnetSelector = self.old_selector - -class ReadTests(ExpectAndReadTestCase): - def test_read_until(self): - """ - read_until(expected, timeout=None) - test the blocking version of read_util - """ - want = [b'xxxmatchyyy'] - telnet = test_telnet(want) - data = telnet.read_until(b'match') - self.assertEqual(data, b'xxxmatch', msg=(telnet.cookedq, telnet.rawq, telnet.sock.reads)) - - reads = [b'x' * 50, b'match', b'y' * 50] - expect = b''.join(reads[:-1]) - telnet = test_telnet(reads) - data = telnet.read_until(b'match') - self.assertEqual(data, expect) - - - def test_read_all(self): - """ - read_all() - Read all data until EOF; may block. - """ - reads = [b'x' * 500, b'y' * 500, b'z' * 500] - expect = b''.join(reads) - telnet = test_telnet(reads) - data = telnet.read_all() - self.assertEqual(data, expect) - return - - def test_read_some(self): - """ - read_some() - Read at least one byte or EOF; may block. - """ - # test 'at least one byte' - telnet = test_telnet([b'x' * 500]) - data = telnet.read_some() - self.assertTrue(len(data) >= 1) - # test EOF - telnet = test_telnet() - data = telnet.read_some() - self.assertEqual(b'', data) - - def _read_eager(self, func_name): - """ - read_*_eager() - Read all data available already queued or on the socket, - without blocking. - """ - want = b'x' * 100 - telnet = test_telnet([want]) - func = getattr(telnet, func_name) - telnet.sock.block = True - self.assertEqual(b'', func()) - telnet.sock.block = False - data = b'' - while True: - try: - data += func() - except EOFError: - break - self.assertEqual(data, want) - - def test_read_eager(self): - # read_eager and read_very_eager make the same guarantees - # (they behave differently but we only test the guarantees) - self._read_eager('read_eager') - self._read_eager('read_very_eager') - # NB -- we need to test the IAC block which is mentioned in the - # docstring but not in the module docs - - def read_very_lazy(self): - want = b'x' * 100 - telnet = test_telnet([want]) - self.assertEqual(b'', telnet.read_very_lazy()) - while telnet.sock.reads: - telnet.fill_rawq() - data = telnet.read_very_lazy() - self.assertEqual(want, data) - self.assertRaises(EOFError, telnet.read_very_lazy) - - def test_read_lazy(self): - want = b'x' * 100 - telnet = test_telnet([want]) - self.assertEqual(b'', telnet.read_lazy()) - data = b'' - while True: - try: - read_data = telnet.read_lazy() - data += read_data - if not read_data: - telnet.fill_rawq() - except EOFError: - break - self.assertTrue(want.startswith(data)) - self.assertEqual(data, want) - -class nego_collector(object): - def __init__(self, sb_getter=None): - self.seen = b'' - self.sb_getter = sb_getter - self.sb_seen = b'' - - def do_nego(self, sock, cmd, opt): - self.seen += cmd + opt - if cmd == tl.SE and self.sb_getter: - sb_data = self.sb_getter() - self.sb_seen += sb_data - -tl = telnetlib - -class WriteTests(unittest.TestCase): - '''The only thing that write does is replace each tl.IAC for - tl.IAC+tl.IAC''' - - def test_write(self): - data_sample = [b'data sample without IAC', - b'data sample with' + tl.IAC + b' one IAC', - b'a few' + tl.IAC + tl.IAC + b' iacs' + tl.IAC, - tl.IAC, - b''] - for data in data_sample: - telnet = test_telnet() - telnet.write(data) - written = b''.join(telnet.sock.writes) - self.assertEqual(data.replace(tl.IAC,tl.IAC+tl.IAC), written) - -class OptionTests(unittest.TestCase): - # RFC 854 commands - cmds = [tl.AO, tl.AYT, tl.BRK, tl.EC, tl.EL, tl.GA, tl.IP, tl.NOP] - - def _test_command(self, data): - """ helper for testing IAC + cmd """ - telnet = test_telnet(data) - data_len = len(b''.join(data)) - nego = nego_collector() - telnet.set_option_negotiation_callback(nego.do_nego) - txt = telnet.read_all() - cmd = nego.seen - self.assertTrue(len(cmd) > 0) # we expect at least one command - self.assertIn(cmd[:1], self.cmds) - self.assertEqual(cmd[1:2], tl.NOOPT) - self.assertEqual(data_len, len(txt + cmd)) - nego.sb_getter = None # break the nego => telnet cycle - - def test_IAC_commands(self): - for cmd in self.cmds: - self._test_command([tl.IAC, cmd]) - self._test_command([b'x' * 100, tl.IAC, cmd, b'y'*100]) - self._test_command([b'x' * 10, tl.IAC, cmd, b'y'*10]) - # all at once - self._test_command([tl.IAC + cmd for (cmd) in self.cmds]) - - def test_SB_commands(self): - # RFC 855, subnegotiations portion - send = [tl.IAC + tl.SB + tl.IAC + tl.SE, - tl.IAC + tl.SB + tl.IAC + tl.IAC + tl.IAC + tl.SE, - tl.IAC + tl.SB + tl.IAC + tl.IAC + b'aa' + tl.IAC + tl.SE, - tl.IAC + tl.SB + b'bb' + tl.IAC + tl.IAC + tl.IAC + tl.SE, - tl.IAC + tl.SB + b'cc' + tl.IAC + tl.IAC + b'dd' + tl.IAC + tl.SE, - ] - telnet = test_telnet(send) - nego = nego_collector(telnet.read_sb_data) - telnet.set_option_negotiation_callback(nego.do_nego) - txt = telnet.read_all() - self.assertEqual(txt, b'') - want_sb_data = tl.IAC + tl.IAC + b'aabb' + tl.IAC + b'cc' + tl.IAC + b'dd' - self.assertEqual(nego.sb_seen, want_sb_data) - self.assertEqual(b'', telnet.read_sb_data()) - nego.sb_getter = None # break the nego => telnet cycle - - def test_debuglevel_reads(self): - # test all the various places that self.msg(...) is called - given_a_expect_b = [ - # Telnet.fill_rawq - (b'a', ": recv b''\n"), - # Telnet.process_rawq - (tl.IAC + bytes([88]), ": IAC 88 not recognized\n"), - (tl.IAC + tl.DO + bytes([1]), ": IAC DO 1\n"), - (tl.IAC + tl.DONT + bytes([1]), ": IAC DONT 1\n"), - (tl.IAC + tl.WILL + bytes([1]), ": IAC WILL 1\n"), - (tl.IAC + tl.WONT + bytes([1]), ": IAC WONT 1\n"), - ] - for a, b in given_a_expect_b: - telnet = test_telnet([a]) - telnet.set_debuglevel(1) - txt = telnet.read_all() - self.assertIn(b, telnet._messages) - return - - def test_debuglevel_write(self): - telnet = test_telnet() - telnet.set_debuglevel(1) - telnet.write(b'xxx') - expected = "send b'xxx'\n" - self.assertIn(expected, telnet._messages) - - def test_debug_accepts_str_port(self): - # Issue 10695 - with test_socket([]): - telnet = TelnetAlike('dummy', '0') - telnet._messages = '' - telnet.set_debuglevel(1) - telnet.msg('test') - self.assertRegex(telnet._messages, r'0.*test') - - -class ExpectTests(ExpectAndReadTestCase): - def test_expect(self): - """ - expect(expected, [timeout]) - Read until the expected string has been seen, or a timeout is - hit (default is no timeout); may block. - """ - want = [b'x' * 10, b'match', b'y' * 10] - telnet = test_telnet(want) - (_,_,data) = telnet.expect([b'match']) - self.assertEqual(data, b''.join(want[:-1])) - - -if __name__ == '__main__': - unittest.main() diff --git a/Lib/test/test_time.py b/Lib/test/test_time.py index 4e618d1d90..3af18efae2 100644 --- a/Lib/test/test_time.py +++ b/Lib/test/test_time.py @@ -718,9 +718,10 @@ class TestAsctime4dyear(_TestAsctimeYear, _Test4dYear, unittest.TestCase): class TestPytime(unittest.TestCase): + # TODO: RUSTPYTHON + @unittest.expectedFailure @skip_if_buggy_ucrt_strfptime - @unittest.skip("TODO: RUSTPYTHON, AttributeError: module 'time' has no attribute '_STRUCT_TM_ITEMS'") - # @unittest.skipUnless(time._STRUCT_TM_ITEMS == 11, "needs tm_zone support") + @unittest.skipUnless(time._STRUCT_TM_ITEMS == 11, "needs tm_zone support") def test_localtime_timezone(self): # Get the localtime and examine it for the offset and zone. @@ -755,16 +756,18 @@ def test_localtime_timezone(self): self.assertEqual(new_lt.tm_gmtoff, lt.tm_gmtoff) self.assertEqual(new_lt9.tm_zone, lt.tm_zone) - @unittest.skip("TODO: RUSTPYTHON, AttributeError: module 'time' has no attribute '_STRUCT_TM_ITEMS'") - # @unittest.skipUnless(time._STRUCT_TM_ITEMS == 11, "needs tm_zone support") + # TODO: RUSTPYTHON + @unittest.expectedFailure + @unittest.skipUnless(time._STRUCT_TM_ITEMS == 11, "needs tm_zone support") def test_strptime_timezone(self): t = time.strptime("UTC", "%Z") self.assertEqual(t.tm_zone, 'UTC') t = time.strptime("+0500", "%z") self.assertEqual(t.tm_gmtoff, 5 * 3600) - @unittest.skip("TODO: RUSTPYTHON, AttributeError: module 'time' has no attribute '_STRUCT_TM_ITEMS'") - # @unittest.skipUnless(time._STRUCT_TM_ITEMS == 11, "needs tm_zone support") + # TODO: RUSTPYTHON + @unittest.expectedFailure + @unittest.skipUnless(time._STRUCT_TM_ITEMS == 11, "needs tm_zone support") def test_short_times(self): import pickle diff --git a/Lib/test/test_timeit.py b/Lib/test/test_timeit.py index 17e880cb58..72a104fc1a 100644 --- a/Lib/test/test_timeit.py +++ b/Lib/test/test_timeit.py @@ -91,8 +91,6 @@ def test_timer_invalid_setup(self): self.assertRaises(SyntaxError, timeit.Timer, setup='from timeit import *') self.assertRaises(SyntaxError, timeit.Timer, setup=' pass') - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_timer_empty_stmt(self): timeit.Timer(stmt='') timeit.Timer(stmt=' \n\t\f') diff --git a/Lib/test/test_tokenize.py b/Lib/test/test_tokenize.py index e2d2f89454..44ef4e2416 100644 --- a/Lib/test/test_tokenize.py +++ b/Lib/test/test_tokenize.py @@ -1237,7 +1237,6 @@ def test_utf8_normalization(self): found, consumed_lines = detect_encoding(rl) self.assertEqual(found, "utf-8") - @unittest.expectedFailureIfWindows("TODO: RUSTPYTHON") def test_short_files(self): readline = self.get_readline((b'print(something)\n',)) encoding, consumed_lines = detect_encoding(readline) @@ -1316,7 +1315,6 @@ def readline(self): ins = Bunk(lines, path) detect_encoding(ins.readline) - @unittest.expectedFailureIfWindows("TODO: RUSTPYTHON") def test_open_error(self): # Issue #23840: open() must close the binary file on error m = BytesIO(b'#coding:xxx') diff --git a/Lib/test/test_tools/__init__.py b/Lib/test/test_tools/__init__.py new file mode 100644 index 0000000000..c4395c7c0a --- /dev/null +++ b/Lib/test/test_tools/__init__.py @@ -0,0 +1,43 @@ +"""Support functions for testing scripts in the Tools directory.""" +import contextlib +import importlib +import os.path +import unittest +from test import support +from test.support import import_helper + + +if not support.has_subprocess_support: + raise unittest.SkipTest("test module requires subprocess") + + +basepath = os.path.normpath( + os.path.dirname( # + os.path.dirname( # Lib + os.path.dirname( # test + os.path.dirname(__file__))))) # test_tools + +toolsdir = os.path.join(basepath, 'Tools') +scriptsdir = os.path.join(toolsdir, 'scripts') + +def skip_if_missing(tool=None): + if tool: + tooldir = os.path.join(toolsdir, tool) + else: + tool = 'scripts' + tooldir = scriptsdir + if not os.path.isdir(tooldir): + raise unittest.SkipTest(f'{tool} directory could not be found') + +@contextlib.contextmanager +def imports_under_tool(name, *subdirs): + tooldir = os.path.join(toolsdir, name, *subdirs) + with import_helper.DirsOnSysPath(tooldir) as cm: + yield cm + +def import_tool(toolname): + with import_helper.DirsOnSysPath(scriptsdir): + return importlib.import_module(toolname) + +def load_tests(*args): + return support.load_package_tests(os.path.dirname(__file__), *args) diff --git a/Lib/test/test_tools/__main__.py b/Lib/test/test_tools/__main__.py new file mode 100644 index 0000000000..b6f13e534e --- /dev/null +++ b/Lib/test/test_tools/__main__.py @@ -0,0 +1,4 @@ +from test.test_tools import load_tests +import unittest + +unittest.main() diff --git a/Lib/test/test_tools/i18n_data/ascii-escapes.pot b/Lib/test/test_tools/i18n_data/ascii-escapes.pot new file mode 100644 index 0000000000..18d868b6a2 --- /dev/null +++ b/Lib/test/test_tools/i18n_data/ascii-escapes.pot @@ -0,0 +1,45 @@ +# SOME DESCRIPTIVE TITLE. +# Copyright (C) YEAR ORGANIZATION +# FIRST AUTHOR , YEAR. +# +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"POT-Creation-Date: 2000-01-01 00:00+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" +"Generated-By: pygettext.py 1.5\n" + + +#: escapes.py:5 +msgid "" +"\"\t\n" +"\r\\" +msgstr "" + +#: escapes.py:8 +msgid "" +"\000\001\002\003\004\005\006\007\010\t\n" +"\013\014\r\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" +msgstr "" + +#: escapes.py:13 +msgid " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~" +msgstr "" + +#: escapes.py:17 +msgid "\177" +msgstr "" + +#: escapes.py:20 +msgid "€   ÿ" +msgstr "" + +#: escapes.py:23 +msgid "α ㄱ 𓂀" +msgstr "" + diff --git a/Lib/test/test_tools/i18n_data/docstrings.pot b/Lib/test/test_tools/i18n_data/docstrings.pot new file mode 100644 index 0000000000..5af1d41422 --- /dev/null +++ b/Lib/test/test_tools/i18n_data/docstrings.pot @@ -0,0 +1,40 @@ +# SOME DESCRIPTIVE TITLE. +# Copyright (C) YEAR ORGANIZATION +# FIRST AUTHOR , YEAR. +# +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"POT-Creation-Date: 2000-01-01 00:00+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" +"Generated-By: pygettext.py 1.5\n" + + +#: docstrings.py:7 +#, docstring +msgid "" +msgstr "" + +#: docstrings.py:18 +#, docstring +msgid "" +"multiline\n" +" docstring\n" +" " +msgstr "" + +#: docstrings.py:25 +#, docstring +msgid "docstring1" +msgstr "" + +#: docstrings.py:30 +#, docstring +msgid "Hello, {}!" +msgstr "" + diff --git a/Lib/test/test_tools/i18n_data/docstrings.py b/Lib/test/test_tools/i18n_data/docstrings.py new file mode 100644 index 0000000000..85d7f159d3 --- /dev/null +++ b/Lib/test/test_tools/i18n_data/docstrings.py @@ -0,0 +1,41 @@ +# Test docstring extraction +from gettext import gettext as _ + + +# Empty docstring +def test(x): + """""" + + +# Leading empty line +def test2(x): + + """docstring""" # XXX This should be extracted but isn't. + + +# XXX Multiline docstrings should be cleaned with `inspect.cleandoc`. +def test3(x): + """multiline + docstring + """ + + +# Multiple docstrings - only the first should be extracted +def test4(x): + """docstring1""" + """docstring2""" + + +def test5(x): + """Hello, {}!""".format("world!") # XXX This should not be extracted. + + +# Nested docstrings +def test6(x): + def inner(y): + """nested docstring""" # XXX This should be extracted but isn't. + + +class Outer: + class Inner: + "nested class docstring" # XXX This should be extracted but isn't. diff --git a/Lib/test/test_tools/i18n_data/escapes.pot b/Lib/test/test_tools/i18n_data/escapes.pot new file mode 100644 index 0000000000..2c7899d59d --- /dev/null +++ b/Lib/test/test_tools/i18n_data/escapes.pot @@ -0,0 +1,45 @@ +# SOME DESCRIPTIVE TITLE. +# Copyright (C) YEAR ORGANIZATION +# FIRST AUTHOR , YEAR. +# +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"POT-Creation-Date: 2000-01-01 00:00+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" +"Generated-By: pygettext.py 1.5\n" + + +#: escapes.py:5 +msgid "" +"\"\t\n" +"\r\\" +msgstr "" + +#: escapes.py:8 +msgid "" +"\000\001\002\003\004\005\006\007\010\t\n" +"\013\014\r\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037" +msgstr "" + +#: escapes.py:13 +msgid " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~" +msgstr "" + +#: escapes.py:17 +msgid "\177" +msgstr "" + +#: escapes.py:20 +msgid "\302\200 \302\240 \303\277" +msgstr "" + +#: escapes.py:23 +msgid "\316\261 \343\204\261 \360\223\202\200" +msgstr "" + diff --git a/Lib/test/test_tools/i18n_data/escapes.py b/Lib/test/test_tools/i18n_data/escapes.py new file mode 100644 index 0000000000..900bd97a70 --- /dev/null +++ b/Lib/test/test_tools/i18n_data/escapes.py @@ -0,0 +1,23 @@ +import gettext as _ + + +# Special characters that are always escaped in the POT file +_('"\t\n\r\\') + +# All ascii characters 0-31 +_('\x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n' + '\x0b\x0c\r\x0e\x0f\x10\x11\x12\x13\x14\x15' + '\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f') + +# All ascii characters 32-126 +_(' !"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ' + '[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~') + +# ascii char 127 +_('\x7f') + +# some characters in the 128-255 range +_('\x80 \xa0 ÿ') + +# some characters >= 256 encoded as 2, 3 and 4 bytes, respectively +_('α ㄱ 𓂀') diff --git a/Lib/test/test_tools/i18n_data/fileloc.pot b/Lib/test/test_tools/i18n_data/fileloc.pot new file mode 100644 index 0000000000..dbd28687a7 --- /dev/null +++ b/Lib/test/test_tools/i18n_data/fileloc.pot @@ -0,0 +1,35 @@ +# SOME DESCRIPTIVE TITLE. +# Copyright (C) YEAR ORGANIZATION +# FIRST AUTHOR , YEAR. +# +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"POT-Creation-Date: 2000-01-01 00:00+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" +"Generated-By: pygettext.py 1.5\n" + + +#: fileloc.py:5 fileloc.py:6 +msgid "foo" +msgstr "" + +#: fileloc.py:9 +msgid "bar" +msgstr "" + +#: fileloc.py:14 fileloc.py:18 +#, docstring +msgid "docstring" +msgstr "" + +#: fileloc.py:22 fileloc.py:26 +#, docstring +msgid "baz" +msgstr "" + diff --git a/Lib/test/test_tools/i18n_data/fileloc.py b/Lib/test/test_tools/i18n_data/fileloc.py new file mode 100644 index 0000000000..c5d4d0595f --- /dev/null +++ b/Lib/test/test_tools/i18n_data/fileloc.py @@ -0,0 +1,26 @@ +# Test file locations +from gettext import gettext as _ + +# Duplicate strings +_('foo') +_('foo') + +# Duplicate strings on the same line should only add one location to the output +_('bar'), _('bar') + + +# Duplicate docstrings +class A: + """docstring""" + + +def f(): + """docstring""" + + +# Duplicate message and docstring +_('baz') + + +def g(): + """baz""" diff --git a/Lib/test/test_tools/i18n_data/messages.pot b/Lib/test/test_tools/i18n_data/messages.pot new file mode 100644 index 0000000000..ddfbd18349 --- /dev/null +++ b/Lib/test/test_tools/i18n_data/messages.pot @@ -0,0 +1,67 @@ +# SOME DESCRIPTIVE TITLE. +# Copyright (C) YEAR ORGANIZATION +# FIRST AUTHOR , YEAR. +# +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"POT-Creation-Date: 2000-01-01 00:00+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" +"Generated-By: pygettext.py 1.5\n" + + +#: messages.py:5 +msgid "" +msgstr "" + +#: messages.py:8 messages.py:9 +msgid "parentheses" +msgstr "" + +#: messages.py:12 +msgid "Hello, world!" +msgstr "" + +#: messages.py:15 +msgid "" +"Hello,\n" +" multiline!\n" +msgstr "" + +#: messages.py:29 +msgid "Hello, {}!" +msgstr "" + +#: messages.py:33 +msgid "1" +msgstr "" + +#: messages.py:33 +msgid "2" +msgstr "" + +#: messages.py:34 messages.py:35 +msgid "A" +msgstr "" + +#: messages.py:34 messages.py:35 +msgid "B" +msgstr "" + +#: messages.py:36 +msgid "set" +msgstr "" + +#: messages.py:42 +msgid "nested string" +msgstr "" + +#: messages.py:47 +msgid "baz" +msgstr "" + diff --git a/Lib/test/test_tools/i18n_data/messages.py b/Lib/test/test_tools/i18n_data/messages.py new file mode 100644 index 0000000000..f220294b8d --- /dev/null +++ b/Lib/test/test_tools/i18n_data/messages.py @@ -0,0 +1,64 @@ +# Test message extraction +from gettext import gettext as _ + +# Empty string +_("") + +# Extra parentheses +(_("parentheses")) +((_("parentheses"))) + +# Multiline strings +_("Hello, " + "world!") + +_("""Hello, + multiline! +""") + +# Invalid arguments +_() +_(None) +_(1) +_(False) +_(x="kwargs are not allowed") +_("foo", "bar") +_("something", x="something else") + +# .format() +_("Hello, {}!").format("world") # valid +_("Hello, {}!".format("world")) # invalid + +# Nested structures +_("1"), _("2") +arr = [_("A"), _("B")] +obj = {'a': _("A"), 'b': _("B")} +{{{_('set')}}} + + +# Nested functions and classes +def test(): + _("nested string") # XXX This should be extracted but isn't. + [_("nested string")] + + +class Foo: + def bar(self): + return _("baz") + + +def bar(x=_('default value')): # XXX This should be extracted but isn't. + pass + + +def baz(x=[_('default value')]): # XXX This should be extracted but isn't. + pass + + +# Shadowing _() +def _(x): + pass + + +def _(x="don't extract me"): + pass diff --git a/Lib/test/test_tools/msgfmt_data/fuzzy.json b/Lib/test/test_tools/msgfmt_data/fuzzy.json new file mode 100644 index 0000000000..fe51488c70 --- /dev/null +++ b/Lib/test/test_tools/msgfmt_data/fuzzy.json @@ -0,0 +1 @@ +[] diff --git a/Lib/test/test_tools/msgfmt_data/fuzzy.mo b/Lib/test/test_tools/msgfmt_data/fuzzy.mo new file mode 100644 index 0000000000..4b144831cf Binary files /dev/null and b/Lib/test/test_tools/msgfmt_data/fuzzy.mo differ diff --git a/Lib/test/test_tools/msgfmt_data/fuzzy.po b/Lib/test/test_tools/msgfmt_data/fuzzy.po new file mode 100644 index 0000000000..05e8354948 --- /dev/null +++ b/Lib/test/test_tools/msgfmt_data/fuzzy.po @@ -0,0 +1,23 @@ +# Fuzzy translations are not written to the .mo file. +#, fuzzy +msgid "foo" +msgstr "bar" + +# comment +#, fuzzy +msgctxt "abc" +msgid "foo" +msgstr "bar" + +#, fuzzy +# comment +msgctxt "xyz" +msgid "foo" +msgstr "bar" + +#, fuzzy +msgctxt "abc" +msgid "One email sent." +msgid_plural "%d emails sent." +msgstr[0] "One email sent." +msgstr[1] "%d emails sent." diff --git a/Lib/test/test_tools/msgfmt_data/general.json b/Lib/test/test_tools/msgfmt_data/general.json new file mode 100644 index 0000000000..0586113985 --- /dev/null +++ b/Lib/test/test_tools/msgfmt_data/general.json @@ -0,0 +1,58 @@ +[ + [ + "", + "Project-Id-Version: PACKAGE VERSION\nPO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\nLast-Translator: FULL NAME \nLanguage-Team: LANGUAGE \nMIME-Version: 1.0\nContent-Type: text/plain; charset=UTF-8\nContent-Transfer-Encoding: 8bit\n" + ], + [ + "\n newlines \n", + "\n translated \n" + ], + [ + "\"escapes\"", + "\"translated\"" + ], + [ + "Multilinestring", + "Multilinetranslation" + ], + [ + "abc\u0004foo", + "bar" + ], + [ + "bar", + "baz" + ], + [ + "xyz\u0004foo", + "bar" + ], + [ + [ + "One email sent.", + 0 + ], + "One email sent." + ], + [ + [ + "One email sent.", + 1 + ], + "%d emails sent." + ], + [ + [ + "abc\u0004One email sent.", + 0 + ], + "One email sent." + ], + [ + [ + "abc\u0004One email sent.", + 1 + ], + "%d emails sent." + ] +] diff --git a/Lib/test/test_tools/msgfmt_data/general.mo b/Lib/test/test_tools/msgfmt_data/general.mo new file mode 100644 index 0000000000..ee905cbb3e Binary files /dev/null and b/Lib/test/test_tools/msgfmt_data/general.mo differ diff --git a/Lib/test/test_tools/msgfmt_data/general.po b/Lib/test/test_tools/msgfmt_data/general.po new file mode 100644 index 0000000000..8f84042682 --- /dev/null +++ b/Lib/test/test_tools/msgfmt_data/general.po @@ -0,0 +1,47 @@ +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"POT-Creation-Date: 2024-10-26 18:06+0200\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +msgid "foo" +msgstr "" + +msgid "bar" +msgstr "baz" + +msgctxt "abc" +msgid "foo" +msgstr "bar" + +# comment +msgctxt "xyz" +msgid "foo" +msgstr "bar" + +msgid "Multiline" +"string" +msgstr "Multiline" +"translation" + +msgid "\"escapes\"" +msgstr "\"translated\"" + +msgid "\n newlines \n" +msgstr "\n translated \n" + +msgid "One email sent." +msgid_plural "%d emails sent." +msgstr[0] "One email sent." +msgstr[1] "%d emails sent." + +msgctxt "abc" +msgid "One email sent." +msgid_plural "%d emails sent." +msgstr[0] "One email sent." +msgstr[1] "%d emails sent." diff --git a/Lib/test/test_tools/test_freeze.py b/Lib/test/test_tools/test_freeze.py new file mode 100644 index 0000000000..0e7ed67de7 --- /dev/null +++ b/Lib/test/test_tools/test_freeze.py @@ -0,0 +1,37 @@ +"""Sanity-check tests for the "freeze" tool.""" + +import sys +import textwrap +import unittest + +from test import support +from test.support import os_helper +from test.test_tools import imports_under_tool, skip_if_missing + +skip_if_missing('freeze') +with imports_under_tool('freeze', 'test'): + import freeze as helper + +@support.requires_zlib() +@unittest.skipIf(sys.platform.startswith('win'), 'not supported on Windows') +@unittest.skipIf(sys.platform == 'darwin' and sys._framework, + 'not supported for frameworks builds on macOS') +@support.skip_if_buildbot('not all buildbots have enough space') +# gh-103053: Skip test if Python is built with Profile Guided Optimization +# (PGO), since the test is just too slow in this case. +@unittest.skipIf(support.check_cflags_pgo(), + 'test is too slow with PGO') +class TestFreeze(unittest.TestCase): + + @support.requires_resource('cpu') # Building Python is slow + def test_freeze_simple_script(self): + script = textwrap.dedent(""" + import sys + print('running...') + sys.exit(0) + """) + with os_helper.temp_dir() as outdir: + outdir, scriptfile, python = helper.prepare(script, outdir) + executable = helper.freeze(python, scriptfile, outdir) + text = helper.run(executable) + self.assertEqual(text, 'running...') diff --git a/Lib/test/test_tools/test_i18n.py b/Lib/test/test_tools/test_i18n.py new file mode 100644 index 0000000000..ffa1b1178e --- /dev/null +++ b/Lib/test/test_tools/test_i18n.py @@ -0,0 +1,444 @@ +"""Tests to cover the Tools/i18n package""" + +import os +import re +import sys +import unittest +from textwrap import dedent +from pathlib import Path + +from test.support.script_helper import assert_python_ok +from test.test_tools import skip_if_missing, toolsdir +from test.support.os_helper import temp_cwd, temp_dir + + +skip_if_missing() + +DATA_DIR = Path(__file__).resolve().parent / 'i18n_data' + + +def normalize_POT_file(pot): + """Normalize the POT creation timestamp, charset and + file locations to make the POT file easier to compare. + + """ + # Normalize the creation date. + date_pattern = re.compile(r'"POT-Creation-Date: .+?\\n"') + header = r'"POT-Creation-Date: 2000-01-01 00:00+0000\\n"' + pot = re.sub(date_pattern, header, pot) + + # Normalize charset to UTF-8 (currently there's no way to specify the output charset). + charset_pattern = re.compile(r'"Content-Type: text/plain; charset=.+?\\n"') + charset = r'"Content-Type: text/plain; charset=UTF-8\\n"' + pot = re.sub(charset_pattern, charset, pot) + + # Normalize file location path separators in case this test is + # running on Windows (which uses '\'). + fileloc_pattern = re.compile(r'#:.+') + + def replace(match): + return match[0].replace(os.sep, "/") + pot = re.sub(fileloc_pattern, replace, pot) + return pot + + +class Test_pygettext(unittest.TestCase): + """Tests for the pygettext.py tool""" + + script = Path(toolsdir, 'i18n', 'pygettext.py') + + def get_header(self, data): + """ utility: return the header of a .po file as a dictionary """ + headers = {} + for line in data.split('\n'): + if not line or line.startswith(('#', 'msgid', 'msgstr')): + continue + line = line.strip('"') + key, val = line.split(':', 1) + headers[key] = val.strip() + return headers + + def get_msgids(self, data): + """ utility: return all msgids in .po file as a list of strings """ + msgids = [] + reading_msgid = False + cur_msgid = [] + for line in data.split('\n'): + if reading_msgid: + if line.startswith('"'): + cur_msgid.append(line.strip('"')) + else: + msgids.append('\n'.join(cur_msgid)) + cur_msgid = [] + reading_msgid = False + continue + if line.startswith('msgid '): + line = line[len('msgid '):] + cur_msgid.append(line.strip('"')) + reading_msgid = True + else: + if reading_msgid: + msgids.append('\n'.join(cur_msgid)) + + return msgids + + def assert_POT_equal(self, expected, actual): + """Check if two POT files are equal""" + self.maxDiff = None + self.assertEqual(normalize_POT_file(expected), normalize_POT_file(actual)) + + def extract_from_str(self, module_content, *, args=(), strict=True): + """Return all msgids extracted from module_content.""" + filename = 'test.py' + with temp_cwd(None): + with open(filename, 'w', encoding='utf-8') as fp: + fp.write(module_content) + res = assert_python_ok('-Xutf8', self.script, *args, filename) + if strict: + self.assertEqual(res.err, b'') + with open('messages.pot', encoding='utf-8') as fp: + data = fp.read() + return self.get_msgids(data) + + def extract_docstrings_from_str(self, module_content): + """Return all docstrings extracted from module_content.""" + return self.extract_from_str(module_content, args=('--docstrings',), strict=False) + + def test_header(self): + """Make sure the required fields are in the header, according to: + http://www.gnu.org/software/gettext/manual/gettext.html#Header-Entry + """ + with temp_cwd(None) as cwd: + assert_python_ok('-Xutf8', self.script) + with open('messages.pot', encoding='utf-8') as fp: + data = fp.read() + header = self.get_header(data) + + self.assertIn("Project-Id-Version", header) + self.assertIn("POT-Creation-Date", header) + self.assertIn("PO-Revision-Date", header) + self.assertIn("Last-Translator", header) + self.assertIn("Language-Team", header) + self.assertIn("MIME-Version", header) + self.assertIn("Content-Type", header) + self.assertIn("Content-Transfer-Encoding", header) + self.assertIn("Generated-By", header) + + # not clear if these should be required in POT (template) files + #self.assertIn("Report-Msgid-Bugs-To", header) + #self.assertIn("Language", header) + + #"Plural-Forms" is optional + + @unittest.skipIf(sys.platform.startswith('aix'), + 'bpo-29972: broken test on AIX') + def test_POT_Creation_Date(self): + """ Match the date format from xgettext for POT-Creation-Date """ + from datetime import datetime + with temp_cwd(None) as cwd: + assert_python_ok('-Xutf8', self.script) + with open('messages.pot', encoding='utf-8') as fp: + data = fp.read() + header = self.get_header(data) + creationDate = header['POT-Creation-Date'] + + # peel off the escaped newline at the end of string + if creationDate.endswith('\\n'): + creationDate = creationDate[:-len('\\n')] + + # This will raise if the date format does not exactly match. + datetime.strptime(creationDate, '%Y-%m-%d %H:%M%z') + + def test_funcdocstring(self): + for doc in ('"""doc"""', "r'''doc'''", "R'doc'", 'u"doc"'): + with self.subTest(doc): + msgids = self.extract_docstrings_from_str(dedent('''\ + def foo(bar): + %s + ''' % doc)) + self.assertIn('doc', msgids) + + def test_funcdocstring_bytes(self): + msgids = self.extract_docstrings_from_str(dedent('''\ + def foo(bar): + b"""doc""" + ''')) + self.assertFalse([msgid for msgid in msgids if 'doc' in msgid]) + + def test_funcdocstring_fstring(self): + msgids = self.extract_docstrings_from_str(dedent('''\ + def foo(bar): + f"""doc""" + ''')) + self.assertFalse([msgid for msgid in msgids if 'doc' in msgid]) + + def test_classdocstring(self): + for doc in ('"""doc"""', "r'''doc'''", "R'doc'", 'u"doc"'): + with self.subTest(doc): + msgids = self.extract_docstrings_from_str(dedent('''\ + class C: + %s + ''' % doc)) + self.assertIn('doc', msgids) + + def test_classdocstring_bytes(self): + msgids = self.extract_docstrings_from_str(dedent('''\ + class C: + b"""doc""" + ''')) + self.assertFalse([msgid for msgid in msgids if 'doc' in msgid]) + + def test_classdocstring_fstring(self): + msgids = self.extract_docstrings_from_str(dedent('''\ + class C: + f"""doc""" + ''')) + self.assertFalse([msgid for msgid in msgids if 'doc' in msgid]) + + def test_moduledocstring(self): + for doc in ('"""doc"""', "r'''doc'''", "R'doc'", 'u"doc"'): + with self.subTest(doc): + msgids = self.extract_docstrings_from_str(dedent('''\ + %s + ''' % doc)) + self.assertIn('doc', msgids) + + def test_moduledocstring_bytes(self): + msgids = self.extract_docstrings_from_str(dedent('''\ + b"""doc""" + ''')) + self.assertFalse([msgid for msgid in msgids if 'doc' in msgid]) + + def test_moduledocstring_fstring(self): + msgids = self.extract_docstrings_from_str(dedent('''\ + f"""doc""" + ''')) + self.assertFalse([msgid for msgid in msgids if 'doc' in msgid]) + + def test_msgid(self): + msgids = self.extract_docstrings_from_str( + '''_("""doc""" r'str' u"ing")''') + self.assertIn('docstring', msgids) + + def test_msgid_bytes(self): + msgids = self.extract_docstrings_from_str('_(b"""doc""")') + self.assertFalse([msgid for msgid in msgids if 'doc' in msgid]) + + def test_msgid_fstring(self): + msgids = self.extract_docstrings_from_str('_(f"""doc""")') + self.assertFalse([msgid for msgid in msgids if 'doc' in msgid]) + + def test_funcdocstring_annotated_args(self): + """ Test docstrings for functions with annotated args """ + msgids = self.extract_docstrings_from_str(dedent('''\ + def foo(bar: str): + """doc""" + ''')) + self.assertIn('doc', msgids) + + def test_funcdocstring_annotated_return(self): + """ Test docstrings for functions with annotated return type """ + msgids = self.extract_docstrings_from_str(dedent('''\ + def foo(bar) -> str: + """doc""" + ''')) + self.assertIn('doc', msgids) + + def test_funcdocstring_defvalue_args(self): + """ Test docstring for functions with default arg values """ + msgids = self.extract_docstrings_from_str(dedent('''\ + def foo(bar=()): + """doc""" + ''')) + self.assertIn('doc', msgids) + + def test_funcdocstring_multiple_funcs(self): + """ Test docstring extraction for multiple functions combining + annotated args, annotated return types and default arg values + """ + msgids = self.extract_docstrings_from_str(dedent('''\ + def foo1(bar: tuple=()) -> str: + """doc1""" + + def foo2(bar: List[1:2]) -> (lambda x: x): + """doc2""" + + def foo3(bar: 'func'=lambda x: x) -> {1: 2}: + """doc3""" + ''')) + self.assertIn('doc1', msgids) + self.assertIn('doc2', msgids) + self.assertIn('doc3', msgids) + + def test_classdocstring_early_colon(self): + """ Test docstring extraction for a class with colons occurring within + the parentheses. + """ + msgids = self.extract_docstrings_from_str(dedent('''\ + class D(L[1:2], F({1: 2}), metaclass=M(lambda x: x)): + """doc""" + ''')) + self.assertIn('doc', msgids) + + def test_calls_in_fstrings(self): + msgids = self.extract_docstrings_from_str(dedent('''\ + f"{_('foo bar')}" + ''')) + self.assertIn('foo bar', msgids) + + def test_calls_in_fstrings_raw(self): + msgids = self.extract_docstrings_from_str(dedent('''\ + rf"{_('foo bar')}" + ''')) + self.assertIn('foo bar', msgids) + + def test_calls_in_fstrings_nested(self): + msgids = self.extract_docstrings_from_str(dedent('''\ + f"""{f'{_("foo bar")}'}""" + ''')) + self.assertIn('foo bar', msgids) + + def test_calls_in_fstrings_attribute(self): + msgids = self.extract_docstrings_from_str(dedent('''\ + f"{obj._('foo bar')}" + ''')) + self.assertIn('foo bar', msgids) + + def test_calls_in_fstrings_with_call_on_call(self): + msgids = self.extract_docstrings_from_str(dedent('''\ + f"{type(str)('foo bar')}" + ''')) + self.assertNotIn('foo bar', msgids) + + def test_calls_in_fstrings_with_format(self): + msgids = self.extract_docstrings_from_str(dedent('''\ + f"{_('foo {bar}').format(bar='baz')}" + ''')) + self.assertIn('foo {bar}', msgids) + + def test_calls_in_fstrings_with_wrong_input_1(self): + msgids = self.extract_docstrings_from_str(dedent('''\ + f"{_(f'foo {bar}')}" + ''')) + self.assertFalse([msgid for msgid in msgids if 'foo {bar}' in msgid]) + + def test_calls_in_fstrings_with_wrong_input_2(self): + msgids = self.extract_docstrings_from_str(dedent('''\ + f"{_(1)}" + ''')) + self.assertNotIn(1, msgids) + + def test_calls_in_fstring_with_multiple_args(self): + msgids = self.extract_docstrings_from_str(dedent('''\ + f"{_('foo', 'bar')}" + ''')) + self.assertNotIn('foo', msgids) + self.assertNotIn('bar', msgids) + + def test_calls_in_fstring_with_keyword_args(self): + msgids = self.extract_docstrings_from_str(dedent('''\ + f"{_('foo', bar='baz')}" + ''')) + self.assertNotIn('foo', msgids) + self.assertNotIn('bar', msgids) + self.assertNotIn('baz', msgids) + + def test_calls_in_fstring_with_partially_wrong_expression(self): + msgids = self.extract_docstrings_from_str(dedent('''\ + f"{_(f'foo') + _('bar')}" + ''')) + self.assertNotIn('foo', msgids) + self.assertIn('bar', msgids) + + def test_function_and_class_names(self): + """Test that function and class names are not mistakenly extracted.""" + msgids = self.extract_from_str(dedent('''\ + def _(x): + pass + + def _(x="foo"): + pass + + async def _(x): + pass + + class _(object): + pass + ''')) + self.assertEqual(msgids, ['']) + + def test_pygettext_output(self): + """Test that the pygettext output exactly matches snapshots.""" + for input_file, output_file, output in extract_from_snapshots(): + with self.subTest(input_file=input_file): + expected = output_file.read_text(encoding='utf-8') + self.assert_POT_equal(expected, output) + + def test_files_list(self): + """Make sure the directories are inspected for source files + bpo-31920 + """ + text1 = 'Text to translate1' + text2 = 'Text to translate2' + text3 = 'Text to ignore' + with temp_cwd(None), temp_dir(None) as sdir: + pymod = Path(sdir, 'pypkg', 'pymod.py') + pymod.parent.mkdir() + pymod.write_text(f'_({text1!r})', encoding='utf-8') + + pymod2 = Path(sdir, 'pkg.py', 'pymod2.py') + pymod2.parent.mkdir() + pymod2.write_text(f'_({text2!r})', encoding='utf-8') + + pymod3 = Path(sdir, 'CVS', 'pymod3.py') + pymod3.parent.mkdir() + pymod3.write_text(f'_({text3!r})', encoding='utf-8') + + assert_python_ok('-Xutf8', self.script, sdir) + data = Path('messages.pot').read_text(encoding='utf-8') + self.assertIn(f'msgid "{text1}"', data) + self.assertIn(f'msgid "{text2}"', data) + self.assertNotIn(text3, data) + + +def extract_from_snapshots(): + snapshots = { + 'messages.py': ('--docstrings',), + 'fileloc.py': ('--docstrings',), + 'docstrings.py': ('--docstrings',), + # == Test character escaping + # Escape ascii and unicode: + 'escapes.py': ('--escape',), + # Escape only ascii and let unicode pass through: + ('escapes.py', 'ascii-escapes.pot'): (), + } + + for filename, args in snapshots.items(): + if isinstance(filename, tuple): + filename, output_file = filename + output_file = DATA_DIR / output_file + input_file = DATA_DIR / filename + else: + input_file = DATA_DIR / filename + output_file = input_file.with_suffix('.pot') + contents = input_file.read_bytes() + with temp_cwd(None): + Path(input_file.name).write_bytes(contents) + assert_python_ok('-Xutf8', Test_pygettext.script, *args, + input_file.name) + yield (input_file, output_file, + Path('messages.pot').read_text(encoding='utf-8')) + + +def update_POT_snapshots(): + for _, output_file, output in extract_from_snapshots(): + output = normalize_POT_file(output) + output_file.write_text(output, encoding='utf-8') + + +if __name__ == '__main__': + # To regenerate POT files + if len(sys.argv) > 1 and sys.argv[1] == '--snapshot-update': + update_POT_snapshots() + sys.exit(0) + unittest.main() diff --git a/Lib/test/test_tools/test_makefile.py b/Lib/test/test_tools/test_makefile.py new file mode 100644 index 0000000000..4c7588d4d9 --- /dev/null +++ b/Lib/test/test_tools/test_makefile.py @@ -0,0 +1,81 @@ +""" +Tests for `Makefile`. +""" + +import os +import unittest +from test import support +import sysconfig + +MAKEFILE = sysconfig.get_makefile_filename() + +if not support.check_impl_detail(cpython=True): + raise unittest.SkipTest('cpython only') +if not os.path.exists(MAKEFILE) or not os.path.isfile(MAKEFILE): + raise unittest.SkipTest('Makefile could not be found') + + +class TestMakefile(unittest.TestCase): + def list_test_dirs(self): + result = [] + found_testsubdirs = False + with open(MAKEFILE, 'r', encoding='utf-8') as f: + for line in f: + if line.startswith('TESTSUBDIRS='): + found_testsubdirs = True + result.append( + line.removeprefix('TESTSUBDIRS=').replace( + '\\', '', + ).strip(), + ) + continue + if found_testsubdirs: + if '\t' not in line: + break + result.append(line.replace('\\', '').strip()) + return result + + @unittest.skipUnless(support.TEST_MODULES_ENABLED, "requires test modules") + def test_makefile_test_folders(self): + test_dirs = self.list_test_dirs() + idle_test = 'idlelib/idle_test' + self.assertIn(idle_test, test_dirs) + + used = set([idle_test]) + for dirpath, dirs, files in os.walk(support.TEST_HOME_DIR): + dirname = os.path.basename(dirpath) + # Skip temporary dirs: + if dirname == '__pycache__' or dirname.startswith('.'): + dirs.clear() # do not process subfolders + continue + # Skip empty dirs: + if not dirs and not files: + continue + # Skip dirs with hidden-only files: + if files and all( + filename.startswith('.') or filename == '__pycache__' + for filename in files + ): + continue + + relpath = os.path.relpath(dirpath, support.STDLIB_DIR) + with self.subTest(relpath=relpath): + self.assertIn( + relpath, + test_dirs, + msg=( + f"{relpath!r} is not included in the Makefile's list " + "of test directories to install" + ) + ) + used.add(relpath) + + # Don't check the wheel dir when Python is built --with-wheel-pkg-dir + if sysconfig.get_config_var('WHEEL_PKG_DIR'): + test_dirs.remove('test/wheeldata') + used.discard('test/wheeldata') + + # Check that there are no extra entries: + unique_test_dirs = set(test_dirs) + self.assertSetEqual(unique_test_dirs, used) + self.assertEqual(len(test_dirs), len(unique_test_dirs)) diff --git a/Lib/test/test_tools/test_makeunicodedata.py b/Lib/test/test_tools/test_makeunicodedata.py new file mode 100644 index 0000000000..f31375117e --- /dev/null +++ b/Lib/test/test_tools/test_makeunicodedata.py @@ -0,0 +1,122 @@ +import unittest +from test.test_tools import skip_if_missing, imports_under_tool +from test import support +from test.support.hypothesis_helper import hypothesis + +st = hypothesis.strategies +given = hypothesis.given +example = hypothesis.example + + +skip_if_missing("unicode") +with imports_under_tool("unicode"): + from dawg import Dawg, build_compression_dawg, lookup, inverse_lookup + + +@st.composite +def char_name_db(draw, min_length=1, max_length=30): + m = draw(st.integers(min_value=min_length, max_value=max_length)) + names = draw( + st.sets(st.text("abcd", min_size=1, max_size=10), min_size=m, max_size=m) + ) + characters = draw(st.sets(st.characters(), min_size=m, max_size=m)) + return list(zip(names, characters)) + + +class TestDawg(unittest.TestCase): + """Tests for the directed acyclic word graph data structure that is used + to store the unicode character names in unicodedata. Tests ported from PyPy + """ + + def test_dawg_direct_simple(self): + dawg = Dawg() + dawg.insert("a", -4) + dawg.insert("c", -2) + dawg.insert("cat", -1) + dawg.insert("catarr", 0) + dawg.insert("catnip", 1) + dawg.insert("zcatnip", 5) + packed, data, inverse = dawg.finish() + + self.assertEqual(lookup(packed, data, b"a"), -4) + self.assertEqual(lookup(packed, data, b"c"), -2) + self.assertEqual(lookup(packed, data, b"cat"), -1) + self.assertEqual(lookup(packed, data, b"catarr"), 0) + self.assertEqual(lookup(packed, data, b"catnip"), 1) + self.assertEqual(lookup(packed, data, b"zcatnip"), 5) + self.assertRaises(KeyError, lookup, packed, data, b"b") + self.assertRaises(KeyError, lookup, packed, data, b"catni") + self.assertRaises(KeyError, lookup, packed, data, b"catnipp") + + self.assertEqual(inverse_lookup(packed, inverse, -4), b"a") + self.assertEqual(inverse_lookup(packed, inverse, -2), b"c") + self.assertEqual(inverse_lookup(packed, inverse, -1), b"cat") + self.assertEqual(inverse_lookup(packed, inverse, 0), b"catarr") + self.assertEqual(inverse_lookup(packed, inverse, 1), b"catnip") + self.assertEqual(inverse_lookup(packed, inverse, 5), b"zcatnip") + self.assertRaises(KeyError, inverse_lookup, packed, inverse, 12) + + def test_forbid_empty_dawg(self): + dawg = Dawg() + self.assertRaises(ValueError, dawg.finish) + + @given(char_name_db()) + @example([("abc", "a"), ("abd", "b")]) + @example( + [ + ("bab", "1"), + ("a", ":"), + ("ad", "@"), + ("b", "<"), + ("aacc", "?"), + ("dab", "D"), + ("aa", "0"), + ("ab", "F"), + ("aaa", "7"), + ("cbd", "="), + ("abad", ";"), + ("ac", "B"), + ("abb", "4"), + ("bb", "2"), + ("aab", "9"), + ("caaaaba", "E"), + ("ca", ">"), + ("bbaaa", "5"), + ("d", "3"), + ("baac", "8"), + ("c", "6"), + ("ba", "A"), + ] + ) + @example( + [ + ("bcdac", "9"), + ("acc", "g"), + ("d", "d"), + ("daabdda", "0"), + ("aba", ";"), + ("c", "6"), + ("aa", "7"), + ("abbd", "c"), + ("badbd", "?"), + ("bbd", "f"), + ("cc", "@"), + ("bb", "8"), + ("daca", ">"), + ("ba", ":"), + ("baac", "3"), + ("dbdddac", "a"), + ("a", "2"), + ("cabd", "b"), + ("b", "="), + ("abd", "4"), + ("adcbd", "5"), + ("abc", "e"), + ("ab", "1"), + ] + ) + def test_dawg(self, data): + # suppress debug prints + with support.captured_stdout() as output: + # it's enough to build it, building will also check the result + build_compression_dawg(data) diff --git a/Lib/test/test_tools/test_msgfmt.py b/Lib/test/test_tools/test_msgfmt.py new file mode 100644 index 0000000000..8cd31680f7 --- /dev/null +++ b/Lib/test/test_tools/test_msgfmt.py @@ -0,0 +1,159 @@ +"""Tests for the Tools/i18n/msgfmt.py tool.""" + +import json +import sys +import unittest +from gettext import GNUTranslations +from pathlib import Path + +from test.support.os_helper import temp_cwd +from test.support.script_helper import assert_python_failure, assert_python_ok +from test.test_tools import skip_if_missing, toolsdir + + +skip_if_missing('i18n') + +data_dir = (Path(__file__).parent / 'msgfmt_data').resolve() +script_dir = Path(toolsdir) / 'i18n' +msgfmt = script_dir / 'msgfmt.py' + + +def compile_messages(po_file, mo_file): + assert_python_ok(msgfmt, '-o', mo_file, po_file) + + +class CompilationTest(unittest.TestCase): + + def test_compilation(self): + self.maxDiff = None + with temp_cwd(): + for po_file in data_dir.glob('*.po'): + with self.subTest(po_file=po_file): + mo_file = po_file.with_suffix('.mo') + with open(mo_file, 'rb') as f: + expected = GNUTranslations(f) + + tmp_mo_file = mo_file.name + compile_messages(po_file, tmp_mo_file) + with open(tmp_mo_file, 'rb') as f: + actual = GNUTranslations(f) + + self.assertDictEqual(actual._catalog, expected._catalog) + + def test_translations(self): + with open(data_dir / 'general.mo', 'rb') as f: + t = GNUTranslations(f) + + self.assertEqual(t.gettext('foo'), 'foo') + self.assertEqual(t.gettext('bar'), 'baz') + self.assertEqual(t.pgettext('abc', 'foo'), 'bar') + self.assertEqual(t.pgettext('xyz', 'foo'), 'bar') + self.assertEqual(t.gettext('Multilinestring'), 'Multilinetranslation') + self.assertEqual(t.gettext('"escapes"'), '"translated"') + self.assertEqual(t.gettext('\n newlines \n'), '\n translated \n') + self.assertEqual(t.ngettext('One email sent.', '%d emails sent.', 1), + 'One email sent.') + self.assertEqual(t.ngettext('One email sent.', '%d emails sent.', 2), + '%d emails sent.') + self.assertEqual(t.npgettext('abc', 'One email sent.', + '%d emails sent.', 1), + 'One email sent.') + self.assertEqual(t.npgettext('abc', 'One email sent.', + '%d emails sent.', 2), + '%d emails sent.') + + def test_invalid_msgid_plural(self): + with temp_cwd(): + Path('invalid.po').write_text('''\ +msgid_plural "plural" +msgstr[0] "singular" +''') + + res = assert_python_failure(msgfmt, 'invalid.po') + err = res.err.decode('utf-8') + self.assertIn('msgid_plural not preceded by msgid', err) + + def test_plural_without_msgid_plural(self): + with temp_cwd(): + Path('invalid.po').write_text('''\ +msgid "foo" +msgstr[0] "bar" +''') + + res = assert_python_failure(msgfmt, 'invalid.po') + err = res.err.decode('utf-8') + self.assertIn('plural without msgid_plural', err) + + def test_indexed_msgstr_without_msgid_plural(self): + with temp_cwd(): + Path('invalid.po').write_text('''\ +msgid "foo" +msgid_plural "foos" +msgstr "bar" +''') + + res = assert_python_failure(msgfmt, 'invalid.po') + err = res.err.decode('utf-8') + self.assertIn('indexed msgstr required for plural', err) + + def test_generic_syntax_error(self): + with temp_cwd(): + Path('invalid.po').write_text('''\ +"foo" +''') + + res = assert_python_failure(msgfmt, 'invalid.po') + err = res.err.decode('utf-8') + self.assertIn('Syntax error', err) + +class CLITest(unittest.TestCase): + + def test_help(self): + for option in ('--help', '-h'): + res = assert_python_ok(msgfmt, option) + err = res.err.decode('utf-8') + self.assertIn('Generate binary message catalog from textual translation description.', err) + + def test_version(self): + for option in ('--version', '-V'): + res = assert_python_ok(msgfmt, option) + out = res.out.decode('utf-8').strip() + self.assertEqual('msgfmt.py 1.2', out) + + def test_invalid_option(self): + res = assert_python_failure(msgfmt, '--invalid-option') + err = res.err.decode('utf-8') + self.assertIn('Generate binary message catalog from textual translation description.', err) + self.assertIn('option --invalid-option not recognized', err) + + def test_no_input_file(self): + res = assert_python_ok(msgfmt) + err = res.err.decode('utf-8').replace('\r\n', '\n') + self.assertIn('No input file given\n' + "Try `msgfmt --help' for more information.", err) + + def test_nonexistent_file(self): + assert_python_failure(msgfmt, 'nonexistent.po') + + +def update_catalog_snapshots(): + for po_file in data_dir.glob('*.po'): + mo_file = po_file.with_suffix('.mo') + compile_messages(po_file, mo_file) + # Create a human-readable JSON file which is + # easier to review than the binary .mo file. + with open(mo_file, 'rb') as f: + translations = GNUTranslations(f) + catalog_file = po_file.with_suffix('.json') + with open(catalog_file, 'w') as f: + data = translations._catalog.items() + data = sorted(data, key=lambda x: (isinstance(x[0], tuple), x[0])) + json.dump(data, f, indent=4) + f.write('\n') + + +if __name__ == '__main__': + if len(sys.argv) > 1 and sys.argv[1] == '--snapshot-update': + update_catalog_snapshots() + sys.exit(0) + unittest.main() diff --git a/Lib/test/test_tools/test_reindent.py b/Lib/test/test_tools/test_reindent.py new file mode 100644 index 0000000000..64e31c2b77 --- /dev/null +++ b/Lib/test/test_tools/test_reindent.py @@ -0,0 +1,35 @@ +"""Tests for scripts in the Tools directory. + +This file contains regression tests for some of the scripts found in the +Tools directory of a Python checkout or tarball, such as reindent.py. +""" + +import os +import unittest +from test.support.script_helper import assert_python_ok +from test.support import findfile + +from test.test_tools import toolsdir, skip_if_missing + +skip_if_missing() + +class ReindentTests(unittest.TestCase): + script = os.path.join(toolsdir, 'patchcheck', 'reindent.py') + + def test_noargs(self): + assert_python_ok(self.script) + + def test_help(self): + rc, out, err = assert_python_ok(self.script, '-h') + self.assertEqual(out, b'') + self.assertGreater(err, b'') + + def test_reindent_file_with_bad_encoding(self): + bad_coding_path = findfile('bad_coding.py', subdir='tokenizedata') + rc, out, err = assert_python_ok(self.script, '-r', bad_coding_path) + self.assertEqual(out, b'') + self.assertNotEqual(err, b'') + + +if __name__ == '__main__': + unittest.main() diff --git a/Lib/test/test_tools/test_sundry.py b/Lib/test/test_tools/test_sundry.py new file mode 100644 index 0000000000..d0b702d392 --- /dev/null +++ b/Lib/test/test_tools/test_sundry.py @@ -0,0 +1,30 @@ +"""Tests for scripts in the Tools/scripts directory. + +This file contains extremely basic regression tests for the scripts found in +the Tools directory of a Python checkout or tarball which don't have separate +tests of their own. +""" + +import os +import unittest +from test.support import import_helper + +from test.test_tools import scriptsdir, import_tool, skip_if_missing + +skip_if_missing() + +class TestSundryScripts(unittest.TestCase): + # import logging registers "atfork" functions which keep indirectly the + # logging module dictionary alive. Mock the function to be able to unload + # cleanly the logging module. + @import_helper.mock_register_at_fork + def test_sundry(self, mock_os): + for fn in os.listdir(scriptsdir): + if not fn.endswith('.py'): + continue + name = fn[:-3] + import_tool(name) + + +if __name__ == '__main__': + unittest.main() diff --git a/Lib/test/test_traceback.py b/Lib/test/test_traceback.py index 20f8085ccf..28a8697235 100644 --- a/Lib/test/test_traceback.py +++ b/Lib/test/test_traceback.py @@ -1040,8 +1040,6 @@ def extract(): class TestFrame(unittest.TestCase): - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_basics(self): linecache.clearcache() linecache.lazycache("f", globals()) @@ -1059,8 +1057,6 @@ def test_basics(self): self.assertNotEqual(f, object()) self.assertEqual(f, ALWAYS_EQ) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_lazy_lines(self): linecache.clearcache() f = traceback.FrameSummary("f", 1, "dummy", lookup_line=False) @@ -1109,8 +1105,6 @@ def test_extract_stack_limit(self): s = traceback.StackSummary.extract(traceback.walk_stack(None), limit=5) self.assertEqual(len(s), 5) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_extract_stack_lookup_lines(self): linecache.clearcache() linecache.updatecache('/foo.py', globals()) @@ -1120,8 +1114,6 @@ def test_extract_stack_lookup_lines(self): linecache.clearcache() self.assertEqual(s[0].line, "import sys") - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_extract_stackup_deferred_lookup_lines(self): linecache.clearcache() c = test_code('/foo.py', 'method') @@ -1153,8 +1145,6 @@ def test_format_smoke(self): [' File "foo.py", line 1, in fred\n line\n'], s.format()) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_locals(self): linecache.updatecache('/foo.py', globals()) c = test_code('/foo.py', 'method') @@ -1162,8 +1152,6 @@ def test_locals(self): s = traceback.StackSummary.extract(iter([(f, 6)]), capture_locals=True) self.assertEqual(s[0].locals, {'something': '1'}) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_no_locals(self): linecache.updatecache('/foo.py', globals()) c = test_code('/foo.py', 'method') @@ -1444,8 +1432,6 @@ def recurse(n): traceback.walk_tb(exc_info[2]), limit=5) self.assertEqual(expected_stack, exc.stack) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_lookup_lines(self): linecache.clearcache() e = Exception("uh oh") @@ -1457,8 +1443,6 @@ def test_lookup_lines(self): linecache.updatecache('/foo.py', globals()) self.assertEqual(exc.stack[0].line, "import sys") - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_locals(self): linecache.updatecache('/foo.py', globals()) e = Exception("uh oh") @@ -1470,8 +1454,6 @@ def test_locals(self): self.assertEqual( exc.stack[0].locals, {'something': '1', 'other': "'string'"}) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_no_locals(self): linecache.updatecache('/foo.py', globals()) e = Exception("uh oh") diff --git a/Lib/test/test_types.py b/Lib/test/test_types.py index 59dc9814fb..c62bf61181 100644 --- a/Lib/test/test_types.py +++ b/Lib/test/test_types.py @@ -742,6 +742,8 @@ def test_instancecheck_and_subclasscheck(self): self.assertTrue(issubclass(dict, x)) self.assertFalse(issubclass(list, x)) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_instancecheck_and_subclasscheck_order(self): T = typing.TypeVar('T') @@ -788,6 +790,8 @@ def __subclasscheck__(cls, sub): self.assertTrue(issubclass(int, x)) self.assertRaises(ZeroDivisionError, issubclass, list, x) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_or_type_operator_with_TypeVar(self): TV = typing.TypeVar('T') assert TV | str == typing.Union[TV, str] @@ -795,6 +799,8 @@ def test_or_type_operator_with_TypeVar(self): self.assertIs((int | TV)[int], int) self.assertIs((TV | int)[int], int) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_union_args(self): def check(arg, expected): clear_typing_caches() @@ -825,6 +831,8 @@ def check(arg, expected): check(x | None, (x, type(None))) check(None | x, (type(None), x)) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_union_parameter_chaining(self): T = typing.TypeVar("T") S = typing.TypeVar("S") @@ -869,6 +877,8 @@ def eq(actual, expected, typed=True): eq(x[NT], int | NT | bytes) eq(x[S], int | S | bytes) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_union_pickle(self): orig = list[T] | int for proto in range(pickle.HIGHEST_PROTOCOL + 1): @@ -878,6 +888,8 @@ def test_union_pickle(self): self.assertEqual(loaded.__args__, orig.__args__) self.assertEqual(loaded.__parameters__, orig.__parameters__) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_union_copy(self): orig = list[T] | int for copied in (copy.copy(orig), copy.deepcopy(orig)): @@ -885,12 +897,16 @@ def test_union_copy(self): self.assertEqual(copied.__args__, orig.__args__) self.assertEqual(copied.__parameters__, orig.__parameters__) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_union_parameter_substitution_errors(self): T = typing.TypeVar("T") x = int | T with self.assertRaises(TypeError): x[int, str] + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_or_type_operator_with_forward(self): T = typing.TypeVar('T') ForwardAfter = T | 'Forward' diff --git a/Lib/test/test_typing.py b/Lib/test/test_typing.py index b6a167f998..70397e2649 100644 --- a/Lib/test/test_typing.py +++ b/Lib/test/test_typing.py @@ -1,64 +1,80 @@ import contextlib import collections +import collections.abc +from collections import defaultdict +from functools import lru_cache, wraps, reduce +import gc +import inspect +import itertools +import operator import pickle import re import sys -from unittest import TestCase, main, skipUnless, skip -# TODO: RUSTPYTHON -import unittest +from unittest import TestCase, main, skip +from unittest.mock import patch from copy import copy, deepcopy -from typing import Any, NoReturn -from typing import TypeVar, AnyStr +from typing import Any, NoReturn, Never, assert_never +from typing import overload, get_overloads, clear_overloads +from typing import TypeVar, TypeVarTuple, Unpack, AnyStr from typing import T, KT, VT # Not in __all__. from typing import Union, Optional, Literal from typing import Tuple, List, Dict, MutableMapping from typing import Callable from typing import Generic, ClassVar, Final, final, Protocol -from typing import cast, runtime_checkable +from typing import assert_type, cast, runtime_checkable from typing import get_type_hints -from typing import get_origin, get_args -from typing import is_typeddict +from typing import get_origin, get_args, get_protocol_members +from typing import is_typeddict, is_protocol +from typing import reveal_type +from typing import dataclass_transform from typing import no_type_check, no_type_check_decorator from typing import Type -from typing import NewType -from typing import NamedTuple, TypedDict +from typing import NamedTuple, NotRequired, Required, ReadOnly, TypedDict from typing import IO, TextIO, BinaryIO from typing import Pattern, Match from typing import Annotated, ForwardRef +from typing import Self, LiteralString from typing import TypeAlias from typing import ParamSpec, Concatenate, ParamSpecArgs, ParamSpecKwargs -from typing import TypeGuard +from typing import TypeGuard, TypeIs, NoDefault import abc +import textwrap import typing import weakref import types -from test import mod_generics_cache -from test import _typed_dict_helper +from test.support import captured_stderr, cpython_only, infinite_recursion, requires_docstrings, import_helper +from test.support.testcase import ExtraAssertions +from test.typinganndata import ann_module695, mod_generics_cache, _typed_dict_helper +# TODO: RUSTPYTHON +import unittest -class BaseTestCase(TestCase): +CANNOT_SUBCLASS_TYPE = 'Cannot subclass special typing classes' +NOT_A_BASE_TYPE = "type 'typing.%s' is not an acceptable base type" +CANNOT_SUBCLASS_INSTANCE = 'Cannot subclass an instance of %s' - def assertIsSubclass(self, cls, class_or_tuple, msg=None): - if not issubclass(cls, class_or_tuple): - message = '%r is not a subclass of %r' % (cls, class_or_tuple) - if msg is not None: - message += ' : %s' % msg - raise self.failureException(message) - def assertNotIsSubclass(self, cls, class_or_tuple, msg=None): - if issubclass(cls, class_or_tuple): - message = '%r is a subclass of %r' % (cls, class_or_tuple) - if msg is not None: - message += ' : %s' % msg - raise self.failureException(message) +class BaseTestCase(TestCase, ExtraAssertions): def clear_caches(self): for f in typing._cleanups: f() +def all_pickle_protocols(test_func): + """Runs `test_func` with various values for `proto` argument.""" + + @wraps(test_func) + def wrapper(self): + for proto in range(pickle.HIGHEST_PROTOCOL + 1): + with self.subTest(pickle_proto=proto): + test_func(self, proto=proto) + + return wrapper + + class Employee: pass @@ -81,28 +97,59 @@ def test_any_instance_type_error(self): with self.assertRaises(TypeError): isinstance(42, Any) - def test_any_subclass_type_error(self): - with self.assertRaises(TypeError): - issubclass(Employee, Any) - with self.assertRaises(TypeError): - issubclass(Any, Employee) - def test_repr(self): self.assertEqual(repr(Any), 'typing.Any') + class Sub(Any): pass + self.assertEqual( + repr(Sub), + f".Sub'>", + ) + def test_errors(self): with self.assertRaises(TypeError): - issubclass(42, Any) + isinstance(42, Any) with self.assertRaises(TypeError): Any[int] # Any is not a generic type. - def test_cannot_subclass(self): - with self.assertRaises(TypeError): - class A(Any): - pass - with self.assertRaises(TypeError): - class A(type(Any)): - pass + def test_can_subclass(self): + class Mock(Any): pass + self.assertTrue(issubclass(Mock, Any)) + self.assertIsInstance(Mock(), Mock) + + class Something: pass + self.assertFalse(issubclass(Something, Any)) + self.assertNotIsInstance(Something(), Mock) + + class MockSomething(Something, Mock): pass + self.assertTrue(issubclass(MockSomething, Any)) + self.assertTrue(issubclass(MockSomething, MockSomething)) + self.assertTrue(issubclass(MockSomething, Something)) + self.assertTrue(issubclass(MockSomething, Mock)) + ms = MockSomething() + self.assertIsInstance(ms, MockSomething) + self.assertIsInstance(ms, Something) + self.assertIsInstance(ms, Mock) + + def test_subclassing_with_custom_constructor(self): + class Sub(Any): + def __init__(self, *args, **kwargs): pass + # The instantiation must not fail. + Sub(0, s="") + + def test_multiple_inheritance_with_custom_constructors(self): + class Foo: + def __init__(self, x): + self.x = x + + class Bar(Any, Foo): + def __init__(self, x, y): + self.y = y + super().__init__(x) + + b = Bar(1, 2) + self.assertEqual(b.x, 1) + self.assertEqual(b.y, 2) def test_cannot_instantiate(self): with self.assertRaises(TypeError): @@ -117,48 +164,276 @@ def test_any_works_with_alias(self): typing.IO[Any] -class NoReturnTests(BaseTestCase): +class BottomTypeTestsMixin: + bottom_type: ClassVar[Any] + + def test_equality(self): + self.assertEqual(self.bottom_type, self.bottom_type) + self.assertIs(self.bottom_type, self.bottom_type) + self.assertNotEqual(self.bottom_type, None) + + def test_get_origin(self): + self.assertIs(get_origin(self.bottom_type), None) + + def test_instance_type_error(self): + with self.assertRaises(TypeError): + isinstance(42, self.bottom_type) + + def test_subclass_type_error(self): + with self.assertRaises(TypeError): + issubclass(Employee, self.bottom_type) + with self.assertRaises(TypeError): + issubclass(NoReturn, self.bottom_type) - def test_noreturn_instance_type_error(self): + def test_not_generic(self): with self.assertRaises(TypeError): - isinstance(42, NoReturn) + self.bottom_type[int] + + def test_cannot_subclass(self): + with self.assertRaisesRegex(TypeError, + 'Cannot subclass ' + re.escape(str(self.bottom_type))): + class A(self.bottom_type): + pass + with self.assertRaisesRegex(TypeError, CANNOT_SUBCLASS_TYPE): + class B(type(self.bottom_type)): + pass - def test_noreturn_subclass_type_error(self): + def test_cannot_instantiate(self): with self.assertRaises(TypeError): - issubclass(Employee, NoReturn) + self.bottom_type() with self.assertRaises(TypeError): - issubclass(NoReturn, Employee) + type(self.bottom_type)() + + +class NoReturnTests(BottomTypeTestsMixin, BaseTestCase): + bottom_type = NoReturn def test_repr(self): self.assertEqual(repr(NoReturn), 'typing.NoReturn') - def test_not_generic(self): + def test_get_type_hints(self): + def some(arg: NoReturn) -> NoReturn: ... + def some_str(arg: 'NoReturn') -> 'typing.NoReturn': ... + + expected = {'arg': NoReturn, 'return': NoReturn} + for target in [some, some_str]: + with self.subTest(target=target): + self.assertEqual(gth(target), expected) + + def test_not_equality(self): + self.assertNotEqual(NoReturn, Never) + self.assertNotEqual(Never, NoReturn) + + +class NeverTests(BottomTypeTestsMixin, BaseTestCase): + bottom_type = Never + + def test_repr(self): + self.assertEqual(repr(Never), 'typing.Never') + + def test_get_type_hints(self): + def some(arg: Never) -> Never: ... + def some_str(arg: 'Never') -> 'typing.Never': ... + + expected = {'arg': Never, 'return': Never} + for target in [some, some_str]: + with self.subTest(target=target): + self.assertEqual(gth(target), expected) + + +class AssertNeverTests(BaseTestCase): + def test_exception(self): + with self.assertRaises(AssertionError): + assert_never(None) + + value = "some value" + with self.assertRaisesRegex(AssertionError, value): + assert_never(value) + + # Make sure a huge value doesn't get printed in its entirety + huge_value = "a" * 10000 + with self.assertRaises(AssertionError) as cm: + assert_never(huge_value) + self.assertLess( + len(cm.exception.args[0]), + typing._ASSERT_NEVER_REPR_MAX_LENGTH * 2, + ) + + +class SelfTests(BaseTestCase): + def test_equality(self): + self.assertEqual(Self, Self) + self.assertIs(Self, Self) + self.assertNotEqual(Self, None) + + def test_basics(self): + class Foo: + def bar(self) -> Self: ... + class FooStr: + def bar(self) -> 'Self': ... + class FooStrTyping: + def bar(self) -> 'typing.Self': ... + + for target in [Foo, FooStr, FooStrTyping]: + with self.subTest(target=target): + self.assertEqual(gth(target.bar), {'return': Self}) + self.assertIs(get_origin(Self), None) + + def test_repr(self): + self.assertEqual(repr(Self), 'typing.Self') + + def test_cannot_subscript(self): with self.assertRaises(TypeError): - NoReturn[int] + Self[int] def test_cannot_subclass(self): - with self.assertRaises(TypeError): - class A(NoReturn): + with self.assertRaisesRegex(TypeError, CANNOT_SUBCLASS_TYPE): + class C(type(Self)): pass + with self.assertRaisesRegex(TypeError, + r'Cannot subclass typing\.Self'): + class D(Self): + pass + + def test_cannot_init(self): + with self.assertRaises(TypeError): + Self() + with self.assertRaises(TypeError): + type(Self)() + + def test_no_isinstance(self): + with self.assertRaises(TypeError): + isinstance(1, Self) + with self.assertRaises(TypeError): + issubclass(int, Self) + + def test_alias(self): + # TypeAliases are not actually part of the spec + alias_1 = Tuple[Self, Self] + alias_2 = List[Self] + alias_3 = ClassVar[Self] + self.assertEqual(get_args(alias_1), (Self, Self)) + self.assertEqual(get_args(alias_2), (Self,)) + self.assertEqual(get_args(alias_3), (Self,)) + + +class LiteralStringTests(BaseTestCase): + def test_equality(self): + self.assertEqual(LiteralString, LiteralString) + self.assertIs(LiteralString, LiteralString) + self.assertNotEqual(LiteralString, None) + + def test_basics(self): + class Foo: + def bar(self) -> LiteralString: ... + class FooStr: + def bar(self) -> 'LiteralString': ... + class FooStrTyping: + def bar(self) -> 'typing.LiteralString': ... + + for target in [Foo, FooStr, FooStrTyping]: + with self.subTest(target=target): + self.assertEqual(gth(target.bar), {'return': LiteralString}) + self.assertIs(get_origin(LiteralString), None) + + def test_repr(self): + self.assertEqual(repr(LiteralString), 'typing.LiteralString') + + def test_cannot_subscript(self): with self.assertRaises(TypeError): - class A(type(NoReturn)): + LiteralString[int] + + def test_cannot_subclass(self): + with self.assertRaisesRegex(TypeError, CANNOT_SUBCLASS_TYPE): + class C(type(LiteralString)): + pass + with self.assertRaisesRegex(TypeError, + r'Cannot subclass typing\.LiteralString'): + class D(LiteralString): pass - def test_cannot_instantiate(self): + def test_cannot_init(self): + with self.assertRaises(TypeError): + LiteralString() + with self.assertRaises(TypeError): + type(LiteralString)() + + def test_no_isinstance(self): with self.assertRaises(TypeError): - NoReturn() + isinstance(1, LiteralString) with self.assertRaises(TypeError): - type(NoReturn)() + issubclass(int, LiteralString) + def test_alias(self): + alias_1 = Tuple[LiteralString, LiteralString] + alias_2 = List[LiteralString] + alias_3 = ClassVar[LiteralString] + self.assertEqual(get_args(alias_1), (LiteralString, LiteralString)) + self.assertEqual(get_args(alias_2), (LiteralString,)) + self.assertEqual(get_args(alias_3), (LiteralString,)) class TypeVarTests(BaseTestCase): - + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_basic_plain(self): T = TypeVar('T') # T equals itself. self.assertEqual(T, T) # T is an instance of TypeVar self.assertIsInstance(T, TypeVar) + self.assertEqual(T.__name__, 'T') + self.assertEqual(T.__constraints__, ()) + self.assertIs(T.__bound__, None) + self.assertIs(T.__covariant__, False) + self.assertIs(T.__contravariant__, False) + self.assertIs(T.__infer_variance__, False) + self.assertEqual(T.__module__, __name__) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_basic_with_exec(self): + ns = {} + exec('from typing import TypeVar; T = TypeVar("T", bound=float)', ns, ns) + T = ns['T'] + self.assertIsInstance(T, TypeVar) + self.assertEqual(T.__name__, 'T') + self.assertEqual(T.__constraints__, ()) + self.assertIs(T.__bound__, float) + self.assertIs(T.__covariant__, False) + self.assertIs(T.__contravariant__, False) + self.assertIs(T.__infer_variance__, False) + self.assertIs(T.__module__, None) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_attributes(self): + T_bound = TypeVar('T_bound', bound=int) + self.assertEqual(T_bound.__name__, 'T_bound') + self.assertEqual(T_bound.__constraints__, ()) + self.assertIs(T_bound.__bound__, int) + + T_constraints = TypeVar('T_constraints', int, str) + self.assertEqual(T_constraints.__name__, 'T_constraints') + self.assertEqual(T_constraints.__constraints__, (int, str)) + self.assertIs(T_constraints.__bound__, None) + + T_co = TypeVar('T_co', covariant=True) + self.assertEqual(T_co.__name__, 'T_co') + self.assertIs(T_co.__covariant__, True) + self.assertIs(T_co.__contravariant__, False) + self.assertIs(T_co.__infer_variance__, False) + + T_contra = TypeVar('T_contra', contravariant=True) + self.assertEqual(T_contra.__name__, 'T_contra') + self.assertIs(T_contra.__covariant__, False) + self.assertIs(T_contra.__contravariant__, True) + self.assertIs(T_contra.__infer_variance__, False) + + T_infer = TypeVar('T_infer', infer_variance=True) + self.assertEqual(T_infer.__name__, 'T_infer') + self.assertIs(T_infer.__covariant__, False) + self.assertIs(T_infer.__contravariant__, False) + self.assertIs(T_infer.__infer_variance__, True) def test_typevar_instance_type_error(self): T = TypeVar('T') @@ -172,11 +447,15 @@ def test_typevar_subclass_type_error(self): with self.assertRaises(TypeError): issubclass(T, int) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_constrained_error(self): with self.assertRaises(TypeError): X = TypeVar('X', int) X + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_union_unique(self): X = TypeVar('X') Y = TypeVar('Y') @@ -190,6 +469,8 @@ def test_union_unique(self): self.assertEqual(Union[X, int].__parameters__, (X,)) self.assertIs(Union[X, int].__origin__, Union) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_or(self): X = TypeVar('X') # use a string because str doesn't implement @@ -204,6 +485,8 @@ def test_union_constrained(self): A = TypeVar('A', str, bytes) self.assertNotEqual(Union[A, str], Union[A]) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_repr(self): self.assertEqual(repr(T), '~T') self.assertEqual(repr(KT), '~KT') @@ -218,25 +501,30 @@ def test_no_redefinition(self): self.assertNotEqual(TypeVar('T'), TypeVar('T')) self.assertNotEqual(TypeVar('T', int, str), TypeVar('T', int, str)) - def test_cannot_subclass_vars(self): - with self.assertRaises(TypeError): - class V(TypeVar('T')): - pass - - def test_cannot_subclass_var_itself(self): - with self.assertRaises(TypeError): - class V(TypeVar): - pass + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_cannot_subclass(self): + with self.assertRaisesRegex(TypeError, NOT_A_BASE_TYPE % 'TypeVar'): + class V(TypeVar): pass + T = TypeVar("T") + with self.assertRaisesRegex(TypeError, + CANNOT_SUBCLASS_INSTANCE % 'TypeVar'): + class W(T): pass def test_cannot_instantiate_vars(self): with self.assertRaises(TypeError): TypeVar('A')() + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_bound_errors(self): with self.assertRaises(TypeError): - TypeVar('X', bound=42) + TypeVar('X', bound=Union) with self.assertRaises(TypeError): TypeVar('X', str, float, bound=Employee) + with self.assertRaisesRegex(TypeError, + r"Bound must be a type\. Got \(1, 2\)\."): + TypeVar('X', bound=(1, 2)) def test_missing__name__(self): # See bpo-39942 @@ -245,116 +533,1789 @@ def test_missing__name__(self): ) exec(code, {}) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_no_bivariant(self): with self.assertRaises(ValueError): TypeVar('T', covariant=True, contravariant=True) + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_cannot_combine_explicit_and_infer(self): + with self.assertRaises(ValueError): + TypeVar('T', covariant=True, infer_variance=True) + with self.assertRaises(ValueError): + TypeVar('T', contravariant=True, infer_variance=True) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_var_substitution(self): + T = TypeVar('T') + subst = T.__typing_subst__ + self.assertIs(subst(int), int) + self.assertEqual(subst(list[int]), list[int]) + self.assertEqual(subst(List[int]), List[int]) + self.assertEqual(subst(List), List) + self.assertIs(subst(Any), Any) + self.assertIs(subst(None), type(None)) + self.assertIs(subst(T), T) + self.assertEqual(subst(int|str), int|str) + self.assertEqual(subst(Union[int, str]), Union[int, str]) + + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_bad_var_substitution(self): T = TypeVar('T') - for arg in (), (int, str): + bad_args = ( + (), (int, str), Union, + Generic, Generic[T], Protocol, Protocol[T], + Final, Final[int], ClassVar, ClassVar[int], + ) + for arg in bad_args: with self.subTest(arg=arg): + with self.assertRaises(TypeError): + T.__typing_subst__(arg) with self.assertRaises(TypeError): List[T][arg] with self.assertRaises(TypeError): list[T][arg] + def test_many_weakrefs(self): + # gh-108295: this used to segfault + for cls in (ParamSpec, TypeVarTuple, TypeVar): + with self.subTest(cls=cls): + vals = weakref.WeakValueDictionary() -class UnionTests(BaseTestCase): + for x in range(10): + vals[x] = cls(str(x)) + del vals - def test_basics(self): - u = Union[int, float] - self.assertNotEqual(u, Union) + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_constructor(self): + T = TypeVar(name="T") + self.assertEqual(T.__name__, "T") + self.assertEqual(T.__constraints__, ()) + self.assertIs(T.__bound__, None) + self.assertIs(T.__default__, typing.NoDefault) + self.assertIs(T.__covariant__, False) + self.assertIs(T.__contravariant__, False) + self.assertIs(T.__infer_variance__, False) + + T = TypeVar(name="T", bound=type) + self.assertEqual(T.__name__, "T") + self.assertEqual(T.__constraints__, ()) + self.assertIs(T.__bound__, type) + self.assertIs(T.__default__, typing.NoDefault) + self.assertIs(T.__covariant__, False) + self.assertIs(T.__contravariant__, False) + self.assertIs(T.__infer_variance__, False) + + T = TypeVar(name="T", default=()) + self.assertEqual(T.__name__, "T") + self.assertEqual(T.__constraints__, ()) + self.assertIs(T.__bound__, None) + self.assertIs(T.__default__, ()) + self.assertIs(T.__covariant__, False) + self.assertIs(T.__contravariant__, False) + self.assertIs(T.__infer_variance__, False) + + T = TypeVar(name="T", covariant=True) + self.assertEqual(T.__name__, "T") + self.assertEqual(T.__constraints__, ()) + self.assertIs(T.__bound__, None) + self.assertIs(T.__default__, typing.NoDefault) + self.assertIs(T.__covariant__, True) + self.assertIs(T.__contravariant__, False) + self.assertIs(T.__infer_variance__, False) + + T = TypeVar(name="T", contravariant=True) + self.assertEqual(T.__name__, "T") + self.assertEqual(T.__constraints__, ()) + self.assertIs(T.__bound__, None) + self.assertIs(T.__default__, typing.NoDefault) + self.assertIs(T.__covariant__, False) + self.assertIs(T.__contravariant__, True) + self.assertIs(T.__infer_variance__, False) + + T = TypeVar(name="T", infer_variance=True) + self.assertEqual(T.__name__, "T") + self.assertEqual(T.__constraints__, ()) + self.assertIs(T.__bound__, None) + self.assertIs(T.__default__, typing.NoDefault) + self.assertIs(T.__covariant__, False) + self.assertIs(T.__contravariant__, False) + self.assertIs(T.__infer_variance__, True) + +class TypeParameterDefaultsTests(BaseTestCase): + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_typevar(self): + T = TypeVar('T', default=int) + self.assertEqual(T.__default__, int) + self.assertTrue(T.has_default()) + self.assertIsInstance(T, TypeVar) - def test_subclass_error(self): - with self.assertRaises(TypeError): - issubclass(int, Union) - with self.assertRaises(TypeError): - issubclass(Union, int) - with self.assertRaises(TypeError): - issubclass(Union[int, str], int) + class A(Generic[T]): ... + Alias = Optional[T] - def test_union_any(self): - u = Union[Any] - self.assertEqual(u, Any) - u1 = Union[int, Any] - u2 = Union[Any, int] - u3 = Union[Any, object] - self.assertEqual(u1, u2) - self.assertNotEqual(u1, Any) - self.assertNotEqual(u2, Any) - self.assertNotEqual(u3, Any) + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_typevar_none(self): + U = TypeVar('U') + U_None = TypeVar('U_None', default=None) + self.assertIs(U.__default__, NoDefault) + self.assertFalse(U.has_default()) + self.assertIs(U_None.__default__, None) + self.assertTrue(U_None.has_default()) - def test_union_object(self): - u = Union[object] - self.assertEqual(u, object) - u1 = Union[int, object] - u2 = Union[object, int] - self.assertEqual(u1, u2) - self.assertNotEqual(u1, object) - self.assertNotEqual(u2, object) + class X[T]: ... + T, = X.__type_params__ + self.assertIs(T.__default__, NoDefault) + self.assertFalse(T.has_default()) - def test_unordered(self): - u1 = Union[int, float] - u2 = Union[float, int] - self.assertEqual(u1, u2) + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_paramspec(self): + P = ParamSpec('P', default=(str, int)) + self.assertEqual(P.__default__, (str, int)) + self.assertTrue(P.has_default()) + self.assertIsInstance(P, ParamSpec) - def test_single_class_disappears(self): - t = Union[Employee] - self.assertIs(t, Employee) + class A(Generic[P]): ... + Alias = typing.Callable[P, None] - def test_base_class_kept(self): - u = Union[Employee, Manager] - self.assertNotEqual(u, Employee) - self.assertIn(Employee, u.__args__) - self.assertIn(Manager, u.__args__) + P_default = ParamSpec('P_default', default=...) + self.assertIs(P_default.__default__, ...) - def test_union_union(self): - u = Union[int, float] - v = Union[u, Employee] - self.assertEqual(v, Union[int, float, Employee]) + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_paramspec_none(self): + U = ParamSpec('U') + U_None = ParamSpec('U_None', default=None) + self.assertIs(U.__default__, NoDefault) + self.assertFalse(U.has_default()) + self.assertIs(U_None.__default__, None) + self.assertTrue(U_None.has_default()) + + class X[**P]: ... + P, = X.__type_params__ + self.assertIs(P.__default__, NoDefault) + self.assertFalse(P.has_default()) - def test_repr(self): - self.assertEqual(repr(Union), 'typing.Union') - u = Union[Employee, int] - self.assertEqual(repr(u), 'typing.Union[%s.Employee, int]' % __name__) - u = Union[int, Employee] - self.assertEqual(repr(u), 'typing.Union[int, %s.Employee]' % __name__) - T = TypeVar('T') - u = Union[T, int][int] - self.assertEqual(repr(u), repr(int)) - u = Union[List[int], int] - self.assertEqual(repr(u), 'typing.Union[typing.List[int], int]') - u = Union[list[int], dict[str, float]] - self.assertEqual(repr(u), 'typing.Union[list[int], dict[str, float]]') - u = Union[int | float] - self.assertEqual(repr(u), 'typing.Union[int, float]') + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_typevartuple(self): + Ts = TypeVarTuple('Ts', default=Unpack[Tuple[str, int]]) + self.assertEqual(Ts.__default__, Unpack[Tuple[str, int]]) + self.assertTrue(Ts.has_default()) + self.assertIsInstance(Ts, TypeVarTuple) - u = Union[None, str] - self.assertEqual(repr(u), 'typing.Optional[str]') - u = Union[str, None] - self.assertEqual(repr(u), 'typing.Optional[str]') - u = Union[None, str, int] - self.assertEqual(repr(u), 'typing.Union[NoneType, str, int]') - u = Optional[str] - self.assertEqual(repr(u), 'typing.Optional[str]') + class A(Generic[Unpack[Ts]]): ... + Alias = Optional[Unpack[Ts]] - def test_cannot_subclass(self): - with self.assertRaises(TypeError): - class C(Union): - pass - with self.assertRaises(TypeError): - class C(type(Union)): - pass - with self.assertRaises(TypeError): - class C(Union[int, str]): - pass + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_typevartuple_specialization(self): + T = TypeVar("T") + Ts = TypeVarTuple('Ts', default=Unpack[Tuple[str, int]]) + self.assertEqual(Ts.__default__, Unpack[Tuple[str, int]]) + class A(Generic[T, Unpack[Ts]]): ... + self.assertEqual(A[float].__args__, (float, str, int)) + self.assertEqual(A[float, range].__args__, (float, range)) + self.assertEqual(A[float, *tuple[int, ...]].__args__, (float, *tuple[int, ...])) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_typevar_and_typevartuple_specialization(self): + T = TypeVar("T") + U = TypeVar("U", default=float) + Ts = TypeVarTuple('Ts', default=Unpack[Tuple[str, int]]) + self.assertEqual(Ts.__default__, Unpack[Tuple[str, int]]) + class A(Generic[T, U, Unpack[Ts]]): ... + self.assertEqual(A[int].__args__, (int, float, str, int)) + self.assertEqual(A[int, str].__args__, (int, str, str, int)) + self.assertEqual(A[int, str, range].__args__, (int, str, range)) + self.assertEqual(A[int, str, *tuple[int, ...]].__args__, (int, str, *tuple[int, ...])) + + def test_no_default_after_typevar_tuple(self): + T = TypeVar("T", default=int) + Ts = TypeVarTuple("Ts") + Ts_default = TypeVarTuple("Ts_default", default=Unpack[Tuple[str, int]]) - def test_cannot_instantiate(self): with self.assertRaises(TypeError): - Union() + class X(Generic[*Ts, T]): ... + with self.assertRaises(TypeError): - type(Union)() - u = Union[int, float] + class Y(Generic[*Ts_default, T]): ... + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_allow_default_after_non_default_in_alias(self): + T_default = TypeVar('T_default', default=int) + T = TypeVar('T') + Ts = TypeVarTuple('Ts') + + a1 = Callable[[T_default], T] + self.assertEqual(a1.__args__, (T_default, T)) + + a2 = dict[T_default, T] + self.assertEqual(a2.__args__, (T_default, T)) + + a3 = typing.Dict[T_default, T] + self.assertEqual(a3.__args__, (T_default, T)) + + a4 = Callable[*Ts, T] + self.assertEqual(a4.__args__, (*Ts, T)) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_paramspec_specialization(self): + T = TypeVar("T") + P = ParamSpec('P', default=[str, int]) + self.assertEqual(P.__default__, [str, int]) + class A(Generic[T, P]): ... + self.assertEqual(A[float].__args__, (float, (str, int))) + self.assertEqual(A[float, [range]].__args__, (float, (range,))) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_typevar_and_paramspec_specialization(self): + T = TypeVar("T") + U = TypeVar("U", default=float) + P = ParamSpec('P', default=[str, int]) + self.assertEqual(P.__default__, [str, int]) + class A(Generic[T, U, P]): ... + self.assertEqual(A[float].__args__, (float, float, (str, int))) + self.assertEqual(A[float, int].__args__, (float, int, (str, int))) + self.assertEqual(A[float, int, [range]].__args__, (float, int, (range,))) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_paramspec_and_typevar_specialization(self): + T = TypeVar("T") + P = ParamSpec('P', default=[str, int]) + U = TypeVar("U", default=float) + self.assertEqual(P.__default__, [str, int]) + class A(Generic[T, P, U]): ... + self.assertEqual(A[float].__args__, (float, (str, int), float)) + self.assertEqual(A[float, [range]].__args__, (float, (range,), float)) + self.assertEqual(A[float, [range], int].__args__, (float, (range,), int)) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_typevartuple_none(self): + U = TypeVarTuple('U') + U_None = TypeVarTuple('U_None', default=None) + self.assertIs(U.__default__, NoDefault) + self.assertFalse(U.has_default()) + self.assertIs(U_None.__default__, None) + self.assertTrue(U_None.has_default()) + + class X[**Ts]: ... + Ts, = X.__type_params__ + self.assertIs(Ts.__default__, NoDefault) + self.assertFalse(Ts.has_default()) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_no_default_after_non_default(self): + DefaultStrT = TypeVar('DefaultStrT', default=str) + T = TypeVar('T') + + with self.assertRaisesRegex( + TypeError, r"Type parameter ~T without a default follows type parameter with a default" + ): + Test = Generic[DefaultStrT, T] + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_need_more_params(self): + DefaultStrT = TypeVar('DefaultStrT', default=str) + T = TypeVar('T') + U = TypeVar('U') + + class A(Generic[T, U, DefaultStrT]): ... + A[int, bool] + A[int, bool, str] + + with self.assertRaisesRegex( + TypeError, r"Too few arguments for .+; actual 1, expected at least 2" + ): + Test = A[int] + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_pickle(self): + global U, U_co, U_contra, U_default # pickle wants to reference the class by name + U = TypeVar('U') + U_co = TypeVar('U_co', covariant=True) + U_contra = TypeVar('U_contra', contravariant=True) + U_default = TypeVar('U_default', default=int) + for proto in range(pickle.HIGHEST_PROTOCOL): + for typevar in (U, U_co, U_contra, U_default): + z = pickle.loads(pickle.dumps(typevar, proto)) + self.assertEqual(z.__name__, typevar.__name__) + self.assertEqual(z.__covariant__, typevar.__covariant__) + self.assertEqual(z.__contravariant__, typevar.__contravariant__) + self.assertEqual(z.__bound__, typevar.__bound__) + self.assertEqual(z.__default__, typevar.__default__) + + + +def template_replace(templates: list[str], replacements: dict[str, list[str]]) -> list[tuple[str]]: + """Renders templates with possible combinations of replacements. + + Example 1: Suppose that: + templates = ["dog_breed are awesome", "dog_breed are cool"] + replacements = ["dog_breed": ["Huskies", "Beagles"]] + Then we would return: + [ + ("Huskies are awesome", "Huskies are cool"), + ("Beagles are awesome", "Beagles are cool") + ] + + Example 2: Suppose that: + templates = ["Huskies are word1 but also word2"] + replacements = {"word1": ["playful", "cute"], + "word2": ["feisty", "tiring"]} + Then we would return: + [ + ("Huskies are playful but also feisty"), + ("Huskies are playful but also tiring"), + ("Huskies are cute but also feisty"), + ("Huskies are cute but also tiring") + ] + + Note that if any of the replacements do not occur in any template: + templates = ["Huskies are word1", "Beagles!"] + replacements = {"word1": ["playful", "cute"], + "word2": ["feisty", "tiring"]} + Then we do not generate duplicates, returning: + [ + ("Huskies are playful", "Beagles!"), + ("Huskies are cute", "Beagles!") + ] + """ + # First, build a structure like: + # [ + # [("word1", "playful"), ("word1", "cute")], + # [("word2", "feisty"), ("word2", "tiring")] + # ] + replacement_combos = [] + for original, possible_replacements in replacements.items(): + original_replacement_tuples = [] + for replacement in possible_replacements: + original_replacement_tuples.append((original, replacement)) + replacement_combos.append(original_replacement_tuples) + + # Second, generate rendered templates, including possible duplicates. + rendered_templates = [] + for replacement_combo in itertools.product(*replacement_combos): + # replacement_combo would be e.g. + # [("word1", "playful"), ("word2", "feisty")] + templates_with_replacements = [] + for template in templates: + for original, replacement in replacement_combo: + template = template.replace(original, replacement) + templates_with_replacements.append(template) + rendered_templates.append(tuple(templates_with_replacements)) + + # Finally, remove the duplicates (but keep the order). + rendered_templates_no_duplicates = [] + for x in rendered_templates: + # Inefficient, but should be fine for our purposes. + if x not in rendered_templates_no_duplicates: + rendered_templates_no_duplicates.append(x) + + return rendered_templates_no_duplicates + + +class TemplateReplacementTests(BaseTestCase): + + def test_two_templates_two_replacements_yields_correct_renders(self): + actual = template_replace( + templates=["Cats are word1", "Dogs are word2"], + replacements={ + "word1": ["small", "cute"], + "word2": ["big", "fluffy"], + }, + ) + expected = [ + ("Cats are small", "Dogs are big"), + ("Cats are small", "Dogs are fluffy"), + ("Cats are cute", "Dogs are big"), + ("Cats are cute", "Dogs are fluffy"), + ] + self.assertEqual(actual, expected) + + def test_no_duplicates_if_replacement_not_in_templates(self): + actual = template_replace( + templates=["Cats are word1", "Dogs!"], + replacements={ + "word1": ["small", "cute"], + "word2": ["big", "fluffy"], + }, + ) + expected = [ + ("Cats are small", "Dogs!"), + ("Cats are cute", "Dogs!"), + ] + self.assertEqual(actual, expected) + + + +class GenericAliasSubstitutionTests(BaseTestCase): + """Tests for type variable substitution in generic aliases. + + For variadic cases, these tests should be regarded as the source of truth, + since we hadn't realised the full complexity of variadic substitution + at the time of finalizing PEP 646. For full discussion, see + https://github.com/python/cpython/issues/91162. + """ + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_one_parameter(self): + T = TypeVar('T') + Ts = TypeVarTuple('Ts') + Ts2 = TypeVarTuple('Ts2') + + class C(Generic[T]): pass + + generics = ['C', 'list', 'List'] + tuple_types = ['tuple', 'Tuple'] + + tests = [ + # Alias # Args # Expected result + ('generic[T]', '[()]', 'TypeError'), + ('generic[T]', '[int]', 'generic[int]'), + ('generic[T]', '[int, str]', 'TypeError'), + ('generic[T]', '[tuple_type[int, ...]]', 'generic[tuple_type[int, ...]]'), + ('generic[T]', '[*tuple_type[int]]', 'generic[int]'), + ('generic[T]', '[*tuple_type[()]]', 'TypeError'), + ('generic[T]', '[*tuple_type[int, str]]', 'TypeError'), + ('generic[T]', '[*tuple_type[int, ...]]', 'TypeError'), + ('generic[T]', '[*Ts]', 'TypeError'), + ('generic[T]', '[T, *Ts]', 'TypeError'), + ('generic[T]', '[*Ts, T]', 'TypeError'), + # Raises TypeError because C is not variadic. + # (If C _were_ variadic, it'd be fine.) + ('C[T, *tuple_type[int, ...]]', '[int]', 'TypeError'), + # Should definitely raise TypeError: list only takes one argument. + ('list[T, *tuple_type[int, ...]]', '[int]', 'list[int, *tuple_type[int, ...]]'), + ('List[T, *tuple_type[int, ...]]', '[int]', 'TypeError'), + # Should raise, because more than one `TypeVarTuple` is not supported. + ('generic[*Ts, *Ts2]', '[int]', 'TypeError'), + ] + + for alias_template, args_template, expected_template in tests: + rendered_templates = template_replace( + templates=[alias_template, args_template, expected_template], + replacements={'generic': generics, 'tuple_type': tuple_types} + ) + for alias_str, args_str, expected_str in rendered_templates: + with self.subTest(alias=alias_str, args=args_str, expected=expected_str): + if expected_str == 'TypeError': + with self.assertRaises(TypeError): + eval(alias_str + args_str) + else: + self.assertEqual( + eval(alias_str + args_str), + eval(expected_str) + ) + + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_two_parameters(self): + T1 = TypeVar('T1') + T2 = TypeVar('T2') + Ts = TypeVarTuple('Ts') + + class C(Generic[T1, T2]): pass + + generics = ['C', 'dict', 'Dict'] + tuple_types = ['tuple', 'Tuple'] + + tests = [ + # Alias # Args # Expected result + ('generic[T1, T2]', '[()]', 'TypeError'), + ('generic[T1, T2]', '[int]', 'TypeError'), + ('generic[T1, T2]', '[int, str]', 'generic[int, str]'), + ('generic[T1, T2]', '[int, str, bool]', 'TypeError'), + ('generic[T1, T2]', '[*tuple_type[int]]', 'TypeError'), + ('generic[T1, T2]', '[*tuple_type[int, str]]', 'generic[int, str]'), + ('generic[T1, T2]', '[*tuple_type[int, str, bool]]', 'TypeError'), + + ('generic[T1, T2]', '[int, *tuple_type[str]]', 'generic[int, str]'), + ('generic[T1, T2]', '[*tuple_type[int], str]', 'generic[int, str]'), + ('generic[T1, T2]', '[*tuple_type[int], *tuple_type[str]]', 'generic[int, str]'), + ('generic[T1, T2]', '[*tuple_type[int, str], *tuple_type[()]]', 'generic[int, str]'), + ('generic[T1, T2]', '[*tuple_type[()], *tuple_type[int, str]]', 'generic[int, str]'), + ('generic[T1, T2]', '[*tuple_type[int], *tuple_type[()]]', 'TypeError'), + ('generic[T1, T2]', '[*tuple_type[()], *tuple_type[int]]', 'TypeError'), + ('generic[T1, T2]', '[*tuple_type[int, str], *tuple_type[float]]', 'TypeError'), + ('generic[T1, T2]', '[*tuple_type[int], *tuple_type[str, float]]', 'TypeError'), + ('generic[T1, T2]', '[*tuple_type[int, str], *tuple_type[float, bool]]', 'TypeError'), + + ('generic[T1, T2]', '[tuple_type[int, ...]]', 'TypeError'), + ('generic[T1, T2]', '[tuple_type[int, ...], tuple_type[str, ...]]', 'generic[tuple_type[int, ...], tuple_type[str, ...]]'), + ('generic[T1, T2]', '[*tuple_type[int, ...]]', 'TypeError'), + ('generic[T1, T2]', '[int, *tuple_type[str, ...]]', 'TypeError'), + ('generic[T1, T2]', '[*tuple_type[int, ...], str]', 'TypeError'), + ('generic[T1, T2]', '[*tuple_type[int, ...], *tuple_type[str, ...]]', 'TypeError'), + ('generic[T1, T2]', '[*Ts]', 'TypeError'), + ('generic[T1, T2]', '[T, *Ts]', 'TypeError'), + ('generic[T1, T2]', '[*Ts, T]', 'TypeError'), + # This one isn't technically valid - none of the things that + # `generic` can be (defined in `generics` above) are variadic, so we + # shouldn't really be able to do `generic[T1, *tuple_type[int, ...]]`. + # So even if type checkers shouldn't allow it, we allow it at + # runtime, in accordance with a general philosophy of "Keep the + # runtime lenient so people can experiment with typing constructs". + ('generic[T1, *tuple_type[int, ...]]', '[str]', 'generic[str, *tuple_type[int, ...]]'), + ] + + for alias_template, args_template, expected_template in tests: + rendered_templates = template_replace( + templates=[alias_template, args_template, expected_template], + replacements={'generic': generics, 'tuple_type': tuple_types} + ) + for alias_str, args_str, expected_str in rendered_templates: + with self.subTest(alias=alias_str, args=args_str, expected=expected_str): + if expected_str == 'TypeError': + with self.assertRaises(TypeError): + eval(alias_str + args_str) + else: + self.assertEqual( + eval(alias_str + args_str), + eval(expected_str) + ) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_three_parameters(self): + T1 = TypeVar('T1') + T2 = TypeVar('T2') + T3 = TypeVar('T3') + + class C(Generic[T1, T2, T3]): pass + + generics = ['C'] + tuple_types = ['tuple', 'Tuple'] + + tests = [ + # Alias # Args # Expected result + ('generic[T1, bool, T2]', '[int, str]', 'generic[int, bool, str]'), + ('generic[T1, bool, T2]', '[*tuple_type[int, str]]', 'generic[int, bool, str]'), + ] + + for alias_template, args_template, expected_template in tests: + rendered_templates = template_replace( + templates=[alias_template, args_template, expected_template], + replacements={'generic': generics, 'tuple_type': tuple_types} + ) + for alias_str, args_str, expected_str in rendered_templates: + with self.subTest(alias=alias_str, args=args_str, expected=expected_str): + if expected_str == 'TypeError': + with self.assertRaises(TypeError): + eval(alias_str + args_str) + else: + self.assertEqual( + eval(alias_str + args_str), + eval(expected_str) + ) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_variadic_parameters(self): + T1 = TypeVar('T1') + T2 = TypeVar('T2') + Ts = TypeVarTuple('Ts') + + generics = ['C', 'tuple', 'Tuple'] + tuple_types = ['tuple', 'Tuple'] + + tests = [ + # Alias # Args # Expected result + ('generic[*Ts]', '[()]', 'generic[()]'), + ('generic[*Ts]', '[int]', 'generic[int]'), + ('generic[*Ts]', '[int, str]', 'generic[int, str]'), + ('generic[*Ts]', '[*tuple_type[int]]', 'generic[int]'), + ('generic[*Ts]', '[*tuple_type[*Ts]]', 'generic[*Ts]'), + ('generic[*Ts]', '[*tuple_type[int, str]]', 'generic[int, str]'), + ('generic[*Ts]', '[str, *tuple_type[int, ...], bool]', 'generic[str, *tuple_type[int, ...], bool]'), + ('generic[*Ts]', '[tuple_type[int, ...]]', 'generic[tuple_type[int, ...]]'), + ('generic[*Ts]', '[tuple_type[int, ...], tuple_type[str, ...]]', 'generic[tuple_type[int, ...], tuple_type[str, ...]]'), + ('generic[*Ts]', '[*tuple_type[int, ...]]', 'generic[*tuple_type[int, ...]]'), + ('generic[*Ts]', '[*tuple_type[int, ...], *tuple_type[str, ...]]', 'TypeError'), + + ('generic[*Ts]', '[*Ts]', 'generic[*Ts]'), + ('generic[*Ts]', '[T, *Ts]', 'generic[T, *Ts]'), + ('generic[*Ts]', '[*Ts, T]', 'generic[*Ts, T]'), + ('generic[T, *Ts]', '[()]', 'TypeError'), + ('generic[T, *Ts]', '[int]', 'generic[int]'), + ('generic[T, *Ts]', '[int, str]', 'generic[int, str]'), + ('generic[T, *Ts]', '[int, str, bool]', 'generic[int, str, bool]'), + ('generic[list[T], *Ts]', '[()]', 'TypeError'), + ('generic[list[T], *Ts]', '[int]', 'generic[list[int]]'), + ('generic[list[T], *Ts]', '[int, str]', 'generic[list[int], str]'), + ('generic[list[T], *Ts]', '[int, str, bool]', 'generic[list[int], str, bool]'), + + ('generic[*Ts, T]', '[()]', 'TypeError'), + ('generic[*Ts, T]', '[int]', 'generic[int]'), + ('generic[*Ts, T]', '[int, str]', 'generic[int, str]'), + ('generic[*Ts, T]', '[int, str, bool]', 'generic[int, str, bool]'), + ('generic[*Ts, list[T]]', '[()]', 'TypeError'), + ('generic[*Ts, list[T]]', '[int]', 'generic[list[int]]'), + ('generic[*Ts, list[T]]', '[int, str]', 'generic[int, list[str]]'), + ('generic[*Ts, list[T]]', '[int, str, bool]', 'generic[int, str, list[bool]]'), + + ('generic[T1, T2, *Ts]', '[()]', 'TypeError'), + ('generic[T1, T2, *Ts]', '[int]', 'TypeError'), + ('generic[T1, T2, *Ts]', '[int, str]', 'generic[int, str]'), + ('generic[T1, T2, *Ts]', '[int, str, bool]', 'generic[int, str, bool]'), + ('generic[T1, T2, *Ts]', '[int, str, bool, bytes]', 'generic[int, str, bool, bytes]'), + + ('generic[*Ts, T1, T2]', '[()]', 'TypeError'), + ('generic[*Ts, T1, T2]', '[int]', 'TypeError'), + ('generic[*Ts, T1, T2]', '[int, str]', 'generic[int, str]'), + ('generic[*Ts, T1, T2]', '[int, str, bool]', 'generic[int, str, bool]'), + ('generic[*Ts, T1, T2]', '[int, str, bool, bytes]', 'generic[int, str, bool, bytes]'), + + ('generic[T1, *Ts, T2]', '[()]', 'TypeError'), + ('generic[T1, *Ts, T2]', '[int]', 'TypeError'), + ('generic[T1, *Ts, T2]', '[int, str]', 'generic[int, str]'), + ('generic[T1, *Ts, T2]', '[int, str, bool]', 'generic[int, str, bool]'), + ('generic[T1, *Ts, T2]', '[int, str, bool, bytes]', 'generic[int, str, bool, bytes]'), + + ('generic[T, *Ts]', '[*tuple_type[int, ...]]', 'generic[int, *tuple_type[int, ...]]'), + ('generic[T, *Ts]', '[str, *tuple_type[int, ...]]', 'generic[str, *tuple_type[int, ...]]'), + ('generic[T, *Ts]', '[*tuple_type[int, ...], str]', 'generic[int, *tuple_type[int, ...], str]'), + ('generic[*Ts, T]', '[*tuple_type[int, ...]]', 'generic[*tuple_type[int, ...], int]'), + ('generic[*Ts, T]', '[str, *tuple_type[int, ...]]', 'generic[str, *tuple_type[int, ...], int]'), + ('generic[*Ts, T]', '[*tuple_type[int, ...], str]', 'generic[*tuple_type[int, ...], str]'), + ('generic[T1, *Ts, T2]', '[*tuple_type[int, ...]]', 'generic[int, *tuple_type[int, ...], int]'), + ('generic[T, str, *Ts]', '[*tuple_type[int, ...]]', 'generic[int, str, *tuple_type[int, ...]]'), + ('generic[*Ts, str, T]', '[*tuple_type[int, ...]]', 'generic[*tuple_type[int, ...], str, int]'), + ('generic[list[T], *Ts]', '[*tuple_type[int, ...]]', 'generic[list[int], *tuple_type[int, ...]]'), + ('generic[*Ts, list[T]]', '[*tuple_type[int, ...]]', 'generic[*tuple_type[int, ...], list[int]]'), + + ('generic[T, *tuple_type[int, ...]]', '[str]', 'generic[str, *tuple_type[int, ...]]'), + ('generic[T1, T2, *tuple_type[int, ...]]', '[str, bool]', 'generic[str, bool, *tuple_type[int, ...]]'), + ('generic[T1, *tuple_type[int, ...], T2]', '[str, bool]', 'generic[str, *tuple_type[int, ...], bool]'), + ('generic[T1, *tuple_type[int, ...], T2]', '[str, bool, float]', 'TypeError'), + + ('generic[T1, *tuple_type[T2, ...]]', '[int, str]', 'generic[int, *tuple_type[str, ...]]'), + ('generic[*tuple_type[T1, ...], T2]', '[int, str]', 'generic[*tuple_type[int, ...], str]'), + ('generic[T1, *tuple_type[generic[*Ts], ...]]', '[int, str, bool]', 'generic[int, *tuple_type[generic[str, bool], ...]]'), + ('generic[*tuple_type[generic[*Ts], ...], T1]', '[int, str, bool]', 'generic[*tuple_type[generic[int, str], ...], bool]'), + ] + + for alias_template, args_template, expected_template in tests: + rendered_templates = template_replace( + templates=[alias_template, args_template, expected_template], + replacements={'generic': generics, 'tuple_type': tuple_types} + ) + for alias_str, args_str, expected_str in rendered_templates: + with self.subTest(alias=alias_str, args=args_str, expected=expected_str): + if expected_str == 'TypeError': + with self.assertRaises(TypeError): + eval(alias_str + args_str) + else: + self.assertEqual( + eval(alias_str + args_str), + eval(expected_str) + ) + + + + + +class UnpackTests(BaseTestCase): + + def test_accepts_single_type(self): + # (*tuple[int],) + Unpack[Tuple[int]] + + def test_dir(self): + dir_items = set(dir(Unpack[Tuple[int]])) + for required_item in [ + '__args__', '__parameters__', '__origin__', + ]: + with self.subTest(required_item=required_item): + self.assertIn(required_item, dir_items) + + def test_rejects_multiple_types(self): + with self.assertRaises(TypeError): + Unpack[Tuple[int], Tuple[str]] + # We can't do the equivalent for `*` here - + # *(Tuple[int], Tuple[str]) is just plain tuple unpacking, + # which is valid. + + def test_rejects_multiple_parameterization(self): + with self.assertRaises(TypeError): + (*tuple[int],)[0][tuple[int]] + with self.assertRaises(TypeError): + Unpack[Tuple[int]][Tuple[int]] + + def test_cannot_be_called(self): + with self.assertRaises(TypeError): + Unpack() + + def test_usage_with_kwargs(self): + Movie = TypedDict('Movie', {'name': str, 'year': int}) + def foo(**kwargs: Unpack[Movie]): ... + self.assertEqual(repr(foo.__annotations__['kwargs']), + f"typing.Unpack[{__name__}.Movie]") + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_builtin_tuple(self): + Ts = TypeVarTuple("Ts") + + # TODO: RUSTPYTHON + # class Old(Generic[*Ts]): ... + # class New[*Ts]: ... + + PartOld = Old[int, *Ts] + self.assertEqual(PartOld[str].__args__, (int, str)) + # self.assertEqual(PartOld[*tuple[str]].__args__, (int, str)) + # self.assertEqual(PartOld[*Tuple[str]].__args__, (int, str)) + self.assertEqual(PartOld[Unpack[tuple[str]]].__args__, (int, str)) + self.assertEqual(PartOld[Unpack[Tuple[str]]].__args__, (int, str)) + + PartNew = New[int, *Ts] + self.assertEqual(PartNew[str].__args__, (int, str)) + # self.assertEqual(PartNew[*tuple[str]].__args__, (int, str)) + # self.assertEqual(PartNew[*Tuple[str]].__args__, (int, str)) + self.assertEqual(PartNew[Unpack[tuple[str]]].__args__, (int, str)) + self.assertEqual(PartNew[Unpack[Tuple[str]]].__args__, (int, str)) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_unpack_wrong_type(self): + Ts = TypeVarTuple("Ts") + class Gen[*Ts]: ... + # PartGen = Gen[int, *Ts] + + bad_unpack_param = re.escape("Unpack[...] must be used with a tuple type") + with self.assertRaisesRegex(TypeError, bad_unpack_param): + PartGen[Unpack[list[int]]] + with self.assertRaisesRegex(TypeError, bad_unpack_param): + PartGen[Unpack[List[int]]] + +class TypeVarTupleTests(BaseTestCase): + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_name(self): + Ts = TypeVarTuple('Ts') + self.assertEqual(Ts.__name__, 'Ts') + Ts2 = TypeVarTuple('Ts2') + self.assertEqual(Ts2.__name__, 'Ts2') + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_module(self): + Ts = TypeVarTuple('Ts') + self.assertEqual(Ts.__module__, __name__) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_exec(self): + ns = {} + exec('from typing import TypeVarTuple; Ts = TypeVarTuple("Ts")', ns) + Ts = ns['Ts'] + self.assertEqual(Ts.__name__, 'Ts') + self.assertIs(Ts.__module__, None) + + def test_instance_is_equal_to_itself(self): + Ts = TypeVarTuple('Ts') + self.assertEqual(Ts, Ts) + + def test_different_instances_are_different(self): + self.assertNotEqual(TypeVarTuple('Ts'), TypeVarTuple('Ts')) + + def test_instance_isinstance_of_typevartuple(self): + Ts = TypeVarTuple('Ts') + self.assertIsInstance(Ts, TypeVarTuple) + + def test_cannot_call_instance(self): + Ts = TypeVarTuple('Ts') + with self.assertRaises(TypeError): + Ts() + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_unpacked_typevartuple_is_equal_to_itself(self): + Ts = TypeVarTuple('Ts') + self.assertEqual((*Ts,)[0], (*Ts,)[0]) + self.assertEqual(Unpack[Ts], Unpack[Ts]) + + def test_parameterised_tuple_is_equal_to_itself(self): + Ts = TypeVarTuple('Ts') + # self.assertEqual(tuple[*Ts], tuple[*Ts]) + self.assertEqual(Tuple[Unpack[Ts]], Tuple[Unpack[Ts]]) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def tests_tuple_arg_ordering_matters(self): + Ts1 = TypeVarTuple('Ts1') + Ts2 = TypeVarTuple('Ts2') + self.assertNotEqual( + tuple[*Ts1, *Ts2], + tuple[*Ts2, *Ts1], + ) + self.assertNotEqual( + Tuple[Unpack[Ts1], Unpack[Ts2]], + Tuple[Unpack[Ts2], Unpack[Ts1]], + ) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_tuple_args_and_parameters_are_correct(self): + Ts = TypeVarTuple('Ts') + # t1 = tuple[*Ts] + self.assertEqual(t1.__args__, (*Ts,)) + self.assertEqual(t1.__parameters__, (Ts,)) + t2 = Tuple[Unpack[Ts]] + self.assertEqual(t2.__args__, (Unpack[Ts],)) + self.assertEqual(t2.__parameters__, (Ts,)) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_var_substitution(self): + Ts = TypeVarTuple('Ts') + T = TypeVar('T') + T2 = TypeVar('T2') + # class G1(Generic[*Ts]): pass + class G2(Generic[Unpack[Ts]]): pass + + for A in G1, G2, Tuple, tuple: + # B = A[*Ts] + self.assertEqual(B[()], A[()]) + self.assertEqual(B[float], A[float]) + self.assertEqual(B[float, str], A[float, str]) + + C = A[Unpack[Ts]] + self.assertEqual(C[()], A[()]) + self.assertEqual(C[float], A[float]) + self.assertEqual(C[float, str], A[float, str]) + + # D = list[A[*Ts]] + self.assertEqual(D[()], list[A[()]]) + self.assertEqual(D[float], list[A[float]]) + self.assertEqual(D[float, str], list[A[float, str]]) + + E = List[A[Unpack[Ts]]] + self.assertEqual(E[()], List[A[()]]) + self.assertEqual(E[float], List[A[float]]) + self.assertEqual(E[float, str], List[A[float, str]]) + + F = A[T, *Ts, T2] + with self.assertRaises(TypeError): + F[()] + with self.assertRaises(TypeError): + F[float] + self.assertEqual(F[float, str], A[float, str]) + self.assertEqual(F[float, str, int], A[float, str, int]) + self.assertEqual(F[float, str, int, bytes], A[float, str, int, bytes]) + + G = A[T, Unpack[Ts], T2] + with self.assertRaises(TypeError): + G[()] + with self.assertRaises(TypeError): + G[float] + self.assertEqual(G[float, str], A[float, str]) + self.assertEqual(G[float, str, int], A[float, str, int]) + self.assertEqual(G[float, str, int, bytes], A[float, str, int, bytes]) + + # H = tuple[list[T], A[*Ts], list[T2]] + with self.assertRaises(TypeError): + H[()] + with self.assertRaises(TypeError): + H[float] + if A != Tuple: + self.assertEqual(H[float, str], + tuple[list[float], A[()], list[str]]) + self.assertEqual(H[float, str, int], + tuple[list[float], A[str], list[int]]) + self.assertEqual(H[float, str, int, bytes], + tuple[list[float], A[str, int], list[bytes]]) + + I = Tuple[List[T], A[Unpack[Ts]], List[T2]] + with self.assertRaises(TypeError): + I[()] + with self.assertRaises(TypeError): + I[float] + if A != Tuple: + self.assertEqual(I[float, str], + Tuple[List[float], A[()], List[str]]) + self.assertEqual(I[float, str, int], + Tuple[List[float], A[str], List[int]]) + self.assertEqual(I[float, str, int, bytes], + Tuple[List[float], A[str, int], List[bytes]]) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_bad_var_substitution(self): + Ts = TypeVarTuple('Ts') + T = TypeVar('T') + T2 = TypeVar('T2') + # class G1(Generic[*Ts]): pass + class G2(Generic[Unpack[Ts]]): pass + + for A in G1, G2, Tuple, tuple: + B = A[Ts] + with self.assertRaises(TypeError): + B[int, str] + + C = A[T, T2] + with self.assertRaises(TypeError): + # C[*Ts] + pass + with self.assertRaises(TypeError): + C[Unpack[Ts]] + + B = A[T, *Ts, str, T2] + with self.assertRaises(TypeError): + B[int, *Ts] + with self.assertRaises(TypeError): + B[int, *Ts, *Ts] + + C = A[T, Unpack[Ts], str, T2] + with self.assertRaises(TypeError): + C[int, Unpack[Ts]] + with self.assertRaises(TypeError): + C[int, Unpack[Ts], Unpack[Ts]] + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_repr_is_correct(self): + Ts = TypeVarTuple('Ts') + + # class G1(Generic[*Ts]): pass + class G2(Generic[Unpack[Ts]]): pass + + self.assertEqual(repr(Ts), 'Ts') + + self.assertEqual(repr((*Ts,)[0]), 'typing.Unpack[Ts]') + self.assertEqual(repr(Unpack[Ts]), 'typing.Unpack[Ts]') + + # self.assertEqual(repr(tuple[*Ts]), 'tuple[typing.Unpack[Ts]]') + self.assertEqual(repr(Tuple[Unpack[Ts]]), 'typing.Tuple[typing.Unpack[Ts]]') + + # self.assertEqual(repr(*tuple[*Ts]), '*tuple[typing.Unpack[Ts]]') + self.assertEqual(repr(Unpack[Tuple[Unpack[Ts]]]), 'typing.Unpack[typing.Tuple[typing.Unpack[Ts]]]') + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_variadic_class_repr_is_correct(self): + Ts = TypeVarTuple('Ts') + # class A(Generic[*Ts]): pass + class B(Generic[Unpack[Ts]]): pass + + self.assertEndsWith(repr(A[()]), 'A[()]') + self.assertEndsWith(repr(B[()]), 'B[()]') + self.assertEndsWith(repr(A[float]), 'A[float]') + self.assertEndsWith(repr(B[float]), 'B[float]') + self.assertEndsWith(repr(A[float, str]), 'A[float, str]') + self.assertEndsWith(repr(B[float, str]), 'B[float, str]') + + # self.assertEndsWith(repr(A[*tuple[int, ...]]), + # 'A[*tuple[int, ...]]') + self.assertEndsWith(repr(B[Unpack[Tuple[int, ...]]]), + 'B[typing.Unpack[typing.Tuple[int, ...]]]') + + self.assertEndsWith(repr(A[float, *tuple[int, ...]]), + 'A[float, *tuple[int, ...]]') + self.assertEndsWith(repr(A[float, Unpack[Tuple[int, ...]]]), + 'A[float, typing.Unpack[typing.Tuple[int, ...]]]') + + self.assertEndsWith(repr(A[*tuple[int, ...], str]), + 'A[*tuple[int, ...], str]') + self.assertEndsWith(repr(B[Unpack[Tuple[int, ...]], str]), + 'B[typing.Unpack[typing.Tuple[int, ...]], str]') + + self.assertEndsWith(repr(A[float, *tuple[int, ...], str]), + 'A[float, *tuple[int, ...], str]') + self.assertEndsWith(repr(B[float, Unpack[Tuple[int, ...]], str]), + 'B[float, typing.Unpack[typing.Tuple[int, ...]], str]') + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_variadic_class_alias_repr_is_correct(self): + Ts = TypeVarTuple('Ts') + class A(Generic[Unpack[Ts]]): pass + + # B = A[*Ts] + # self.assertEndsWith(repr(B), 'A[typing.Unpack[Ts]]') + # self.assertEndsWith(repr(B[()]), 'A[()]') + # self.assertEndsWith(repr(B[float]), 'A[float]') + # self.assertEndsWith(repr(B[float, str]), 'A[float, str]') + + C = A[Unpack[Ts]] + self.assertEndsWith(repr(C), 'A[typing.Unpack[Ts]]') + self.assertEndsWith(repr(C[()]), 'A[()]') + self.assertEndsWith(repr(C[float]), 'A[float]') + self.assertEndsWith(repr(C[float, str]), 'A[float, str]') + + D = A[*Ts, int] + self.assertEndsWith(repr(D), 'A[typing.Unpack[Ts], int]') + self.assertEndsWith(repr(D[()]), 'A[int]') + self.assertEndsWith(repr(D[float]), 'A[float, int]') + self.assertEndsWith(repr(D[float, str]), 'A[float, str, int]') + + E = A[Unpack[Ts], int] + self.assertEndsWith(repr(E), 'A[typing.Unpack[Ts], int]') + self.assertEndsWith(repr(E[()]), 'A[int]') + self.assertEndsWith(repr(E[float]), 'A[float, int]') + self.assertEndsWith(repr(E[float, str]), 'A[float, str, int]') + + F = A[int, *Ts] + self.assertEndsWith(repr(F), 'A[int, typing.Unpack[Ts]]') + self.assertEndsWith(repr(F[()]), 'A[int]') + self.assertEndsWith(repr(F[float]), 'A[int, float]') + self.assertEndsWith(repr(F[float, str]), 'A[int, float, str]') + + G = A[int, Unpack[Ts]] + self.assertEndsWith(repr(G), 'A[int, typing.Unpack[Ts]]') + self.assertEndsWith(repr(G[()]), 'A[int]') + self.assertEndsWith(repr(G[float]), 'A[int, float]') + self.assertEndsWith(repr(G[float, str]), 'A[int, float, str]') + + H = A[int, *Ts, str] + self.assertEndsWith(repr(H), 'A[int, typing.Unpack[Ts], str]') + self.assertEndsWith(repr(H[()]), 'A[int, str]') + self.assertEndsWith(repr(H[float]), 'A[int, float, str]') + self.assertEndsWith(repr(H[float, str]), 'A[int, float, str, str]') + + I = A[int, Unpack[Ts], str] + self.assertEndsWith(repr(I), 'A[int, typing.Unpack[Ts], str]') + self.assertEndsWith(repr(I[()]), 'A[int, str]') + self.assertEndsWith(repr(I[float]), 'A[int, float, str]') + self.assertEndsWith(repr(I[float, str]), 'A[int, float, str, str]') + + J = A[*Ts, *tuple[str, ...]] + self.assertEndsWith(repr(J), 'A[typing.Unpack[Ts], *tuple[str, ...]]') + self.assertEndsWith(repr(J[()]), 'A[*tuple[str, ...]]') + self.assertEndsWith(repr(J[float]), 'A[float, *tuple[str, ...]]') + self.assertEndsWith(repr(J[float, str]), 'A[float, str, *tuple[str, ...]]') + + K = A[Unpack[Ts], Unpack[Tuple[str, ...]]] + self.assertEndsWith(repr(K), 'A[typing.Unpack[Ts], typing.Unpack[typing.Tuple[str, ...]]]') + self.assertEndsWith(repr(K[()]), 'A[typing.Unpack[typing.Tuple[str, ...]]]') + self.assertEndsWith(repr(K[float]), 'A[float, typing.Unpack[typing.Tuple[str, ...]]]') + self.assertEndsWith(repr(K[float, str]), 'A[float, str, typing.Unpack[typing.Tuple[str, ...]]]') + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_cannot_subclass(self): + with self.assertRaisesRegex(TypeError, NOT_A_BASE_TYPE % 'TypeVarTuple'): + class C(TypeVarTuple): pass + Ts = TypeVarTuple('Ts') + with self.assertRaisesRegex(TypeError, + CANNOT_SUBCLASS_INSTANCE % 'TypeVarTuple'): + class D(Ts): pass + with self.assertRaisesRegex(TypeError, CANNOT_SUBCLASS_TYPE): + class E(type(Unpack)): pass + with self.assertRaisesRegex(TypeError, CANNOT_SUBCLASS_TYPE): + class F(type(*Ts)): pass + with self.assertRaisesRegex(TypeError, CANNOT_SUBCLASS_TYPE): + class G(type(Unpack[Ts])): pass + with self.assertRaisesRegex(TypeError, + r'Cannot subclass typing\.Unpack'): + class H(Unpack): pass + with self.assertRaisesRegex(TypeError, r'Cannot subclass typing.Unpack\[Ts\]'): + class I(*Ts): pass + with self.assertRaisesRegex(TypeError, r'Cannot subclass typing.Unpack\[Ts\]'): + class J(Unpack[Ts]): pass + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_variadic_class_args_are_correct(self): + T = TypeVar('T') + Ts = TypeVarTuple('Ts') + # class A(Generic[*Ts]): pass + class B(Generic[Unpack[Ts]]): pass + + C = A[()] + D = B[()] + self.assertEqual(C.__args__, ()) + self.assertEqual(D.__args__, ()) + + E = A[int] + F = B[int] + self.assertEqual(E.__args__, (int,)) + self.assertEqual(F.__args__, (int,)) + + G = A[int, str] + H = B[int, str] + self.assertEqual(G.__args__, (int, str)) + self.assertEqual(H.__args__, (int, str)) + + I = A[T] + J = B[T] + self.assertEqual(I.__args__, (T,)) + self.assertEqual(J.__args__, (T,)) + + # K = A[*Ts] + # L = B[Unpack[Ts]] + # self.assertEqual(K.__args__, (*Ts,)) + # self.assertEqual(L.__args__, (Unpack[Ts],)) + + M = A[T, *Ts] + N = B[T, Unpack[Ts]] + self.assertEqual(M.__args__, (T, *Ts)) + self.assertEqual(N.__args__, (T, Unpack[Ts])) + + O = A[*Ts, T] + P = B[Unpack[Ts], T] + self.assertEqual(O.__args__, (*Ts, T)) + self.assertEqual(P.__args__, (Unpack[Ts], T)) + + def test_variadic_class_origin_is_correct(self): + Ts = TypeVarTuple('Ts') + + # class C(Generic[*Ts]): pass + self.assertIs(C[int].__origin__, C) + self.assertIs(C[T].__origin__, C) + self.assertIs(C[Unpack[Ts]].__origin__, C) + + class D(Generic[Unpack[Ts]]): pass + self.assertIs(D[int].__origin__, D) + self.assertIs(D[T].__origin__, D) + self.assertIs(D[Unpack[Ts]].__origin__, D) + + def test_get_type_hints_on_unpack_args(self): + Ts = TypeVarTuple('Ts') + + # def func1(*args: *Ts): pass + # self.assertEqual(gth(func1), {'args': Unpack[Ts]}) + + # def func2(*args: *tuple[int, str]): pass + # self.assertEqual(gth(func2), {'args': Unpack[tuple[int, str]]}) + + # class CustomVariadic(Generic[*Ts]): pass + + # def func3(*args: *CustomVariadic[int, str]): pass + # self.assertEqual(gth(func3), {'args': Unpack[CustomVariadic[int, str]]}) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_get_type_hints_on_unpack_args_string(self): + Ts = TypeVarTuple('Ts') + + def func1(*args: '*Ts'): pass + self.assertEqual(gth(func1, localns={'Ts': Ts}), + {'args': Unpack[Ts]}) + + def func2(*args: '*tuple[int, str]'): pass + self.assertEqual(gth(func2), {'args': Unpack[tuple[int, str]]}) + + # class CustomVariadic(Generic[*Ts]): pass + + # def func3(*args: '*CustomVariadic[int, str]'): pass + # self.assertEqual(gth(func3, localns={'CustomVariadic': CustomVariadic}), + # {'args': Unpack[CustomVariadic[int, str]]}) + + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_tuple_args_are_correct(self): + Ts = TypeVarTuple('Ts') + + # self.assertEqual(tuple[*Ts].__args__, (*Ts,)) + self.assertEqual(Tuple[Unpack[Ts]].__args__, (Unpack[Ts],)) + + self.assertEqual(tuple[*Ts, int].__args__, (*Ts, int)) + self.assertEqual(Tuple[Unpack[Ts], int].__args__, (Unpack[Ts], int)) + + self.assertEqual(tuple[int, *Ts].__args__, (int, *Ts)) + self.assertEqual(Tuple[int, Unpack[Ts]].__args__, (int, Unpack[Ts])) + + self.assertEqual(tuple[int, *Ts, str].__args__, + (int, *Ts, str)) + self.assertEqual(Tuple[int, Unpack[Ts], str].__args__, + (int, Unpack[Ts], str)) + + self.assertEqual(tuple[*Ts, int].__args__, (*Ts, int)) + self.assertEqual(Tuple[Unpack[Ts]].__args__, (Unpack[Ts],)) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_callable_args_are_correct(self): + Ts = TypeVarTuple('Ts') + Ts1 = TypeVarTuple('Ts1') + Ts2 = TypeVarTuple('Ts2') + + # TypeVarTuple in the arguments + + a = Callable[[*Ts], None] + b = Callable[[Unpack[Ts]], None] + self.assertEqual(a.__args__, (*Ts, type(None))) + self.assertEqual(b.__args__, (Unpack[Ts], type(None))) + + c = Callable[[int, *Ts], None] + d = Callable[[int, Unpack[Ts]], None] + self.assertEqual(c.__args__, (int, *Ts, type(None))) + self.assertEqual(d.__args__, (int, Unpack[Ts], type(None))) + + e = Callable[[*Ts, int], None] + f = Callable[[Unpack[Ts], int], None] + self.assertEqual(e.__args__, (*Ts, int, type(None))) + self.assertEqual(f.__args__, (Unpack[Ts], int, type(None))) + + g = Callable[[str, *Ts, int], None] + h = Callable[[str, Unpack[Ts], int], None] + self.assertEqual(g.__args__, (str, *Ts, int, type(None))) + self.assertEqual(h.__args__, (str, Unpack[Ts], int, type(None))) + + # TypeVarTuple as the return + + i = Callable[[None], *Ts] + j = Callable[[None], Unpack[Ts]] + self.assertEqual(i.__args__, (type(None), *Ts)) + self.assertEqual(j.__args__, (type(None), Unpack[Ts])) + + k = Callable[[None], tuple[int, *Ts]] + l = Callable[[None], Tuple[int, Unpack[Ts]]] + self.assertEqual(k.__args__, (type(None), tuple[int, *Ts])) + self.assertEqual(l.__args__, (type(None), Tuple[int, Unpack[Ts]])) + + m = Callable[[None], tuple[*Ts, int]] + n = Callable[[None], Tuple[Unpack[Ts], int]] + self.assertEqual(m.__args__, (type(None), tuple[*Ts, int])) + self.assertEqual(n.__args__, (type(None), Tuple[Unpack[Ts], int])) + + o = Callable[[None], tuple[str, *Ts, int]] + p = Callable[[None], Tuple[str, Unpack[Ts], int]] + self.assertEqual(o.__args__, (type(None), tuple[str, *Ts, int])) + self.assertEqual(p.__args__, (type(None), Tuple[str, Unpack[Ts], int])) + + # TypeVarTuple in both + + q = Callable[[*Ts], *Ts] + r = Callable[[Unpack[Ts]], Unpack[Ts]] + self.assertEqual(q.__args__, (*Ts, *Ts)) + self.assertEqual(r.__args__, (Unpack[Ts], Unpack[Ts])) + + s = Callable[[*Ts1], *Ts2] + u = Callable[[Unpack[Ts1]], Unpack[Ts2]] + self.assertEqual(s.__args__, (*Ts1, *Ts2)) + self.assertEqual(u.__args__, (Unpack[Ts1], Unpack[Ts2])) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_variadic_class_with_duplicate_typevartuples_fails(self): + Ts1 = TypeVarTuple('Ts1') + Ts2 = TypeVarTuple('Ts2') + + with self.assertRaises(TypeError): + class C(Generic[*Ts1, *Ts1]): pass + with self.assertRaises(TypeError): + class D(Generic[Unpack[Ts1], Unpack[Ts1]]): pass + + with self.assertRaises(TypeError): + class E(Generic[*Ts1, *Ts2, *Ts1]): pass + with self.assertRaises(TypeError): + class F(Generic[Unpack[Ts1], Unpack[Ts2], Unpack[Ts1]]): pass + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_type_concatenation_in_variadic_class_argument_list_succeeds(self): + Ts = TypeVarTuple('Ts') + class C(Generic[Unpack[Ts]]): pass + + C[int, *Ts] + C[int, Unpack[Ts]] + + C[*Ts, int] + C[Unpack[Ts], int] + + C[int, *Ts, str] + C[int, Unpack[Ts], str] + + C[int, bool, *Ts, float, str] + C[int, bool, Unpack[Ts], float, str] + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_type_concatenation_in_tuple_argument_list_succeeds(self): + Ts = TypeVarTuple('Ts') + + tuple[int, *Ts] + tuple[*Ts, int] + tuple[int, *Ts, str] + tuple[int, bool, *Ts, float, str] + + Tuple[int, Unpack[Ts]] + Tuple[Unpack[Ts], int] + Tuple[int, Unpack[Ts], str] + Tuple[int, bool, Unpack[Ts], float, str] + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_variadic_class_definition_using_packed_typevartuple_fails(self): + Ts = TypeVarTuple('Ts') + with self.assertRaises(TypeError): + class C(Generic[Ts]): pass + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_variadic_class_definition_using_concrete_types_fails(self): + Ts = TypeVarTuple('Ts') + with self.assertRaises(TypeError): + class F(Generic[*Ts, int]): pass + with self.assertRaises(TypeError): + class E(Generic[Unpack[Ts], int]): pass + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_variadic_class_with_2_typevars_accepts_2_or_more_args(self): + Ts = TypeVarTuple('Ts') + T1 = TypeVar('T1') + T2 = TypeVar('T2') + + class A(Generic[T1, T2, *Ts]): pass + A[int, str] + A[int, str, float] + A[int, str, float, bool] + + class B(Generic[T1, T2, Unpack[Ts]]): pass + B[int, str] + B[int, str, float] + B[int, str, float, bool] + + class C(Generic[T1, *Ts, T2]): pass + C[int, str] + C[int, str, float] + C[int, str, float, bool] + + class D(Generic[T1, Unpack[Ts], T2]): pass + D[int, str] + D[int, str, float] + D[int, str, float, bool] + + class E(Generic[*Ts, T1, T2]): pass + E[int, str] + E[int, str, float] + E[int, str, float, bool] + + class F(Generic[Unpack[Ts], T1, T2]): pass + F[int, str] + F[int, str, float] + F[int, str, float, bool] + + + def test_variadic_args_annotations_are_correct(self): + Ts = TypeVarTuple('Ts') + + def f(*args: Unpack[Ts]): pass + # def g(*args: *Ts): pass + self.assertEqual(f.__annotations__, {'args': Unpack[Ts]}) + # self.assertEqual(g.__annotations__, {'args': (*Ts,)[0]}) + + + def test_variadic_args_with_ellipsis_annotations_are_correct(self): + # def a(*args: *tuple[int, ...]): pass + # self.assertEqual(a.__annotations__, + # {'args': (*tuple[int, ...],)[0]}) + + def b(*args: Unpack[Tuple[int, ...]]): pass + self.assertEqual(b.__annotations__, + {'args': Unpack[Tuple[int, ...]]}) + + + def test_concatenation_in_variadic_args_annotations_are_correct(self): + Ts = TypeVarTuple('Ts') + + # Unpacking using `*`, native `tuple` type + + # def a(*args: *tuple[int, *Ts]): pass + # self.assertEqual( + # a.__annotations__, + # {'args': (*tuple[int, *Ts],)[0]}, + # ) + + # def b(*args: *tuple[*Ts, int]): pass + # self.assertEqual( + # b.__annotations__, + # {'args': (*tuple[*Ts, int],)[0]}, + # ) + + # def c(*args: *tuple[str, *Ts, int]): pass + # self.assertEqual( + # c.__annotations__, + # {'args': (*tuple[str, *Ts, int],)[0]}, + # ) + + # def d(*args: *tuple[int, bool, *Ts, float, str]): pass + # self.assertEqual( + # d.__annotations__, + # {'args': (*tuple[int, bool, *Ts, float, str],)[0]}, + # ) + + # Unpacking using `Unpack`, `Tuple` type from typing.py + + def e(*args: Unpack[Tuple[int, Unpack[Ts]]]): pass + self.assertEqual( + e.__annotations__, + {'args': Unpack[Tuple[int, Unpack[Ts]]]}, + ) + + def f(*args: Unpack[Tuple[Unpack[Ts], int]]): pass + self.assertEqual( + f.__annotations__, + {'args': Unpack[Tuple[Unpack[Ts], int]]}, + ) + + def g(*args: Unpack[Tuple[str, Unpack[Ts], int]]): pass + self.assertEqual( + g.__annotations__, + {'args': Unpack[Tuple[str, Unpack[Ts], int]]}, + ) + + def h(*args: Unpack[Tuple[int, bool, Unpack[Ts], float, str]]): pass + self.assertEqual( + h.__annotations__, + {'args': Unpack[Tuple[int, bool, Unpack[Ts], float, str]]}, + ) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_variadic_class_same_args_results_in_equalty(self): + Ts = TypeVarTuple('Ts') + # class C(Generic[*Ts]): pass + class D(Generic[Unpack[Ts]]): pass + + self.assertEqual(C[int], C[int]) + self.assertEqual(D[int], D[int]) + + Ts1 = TypeVarTuple('Ts1') + Ts2 = TypeVarTuple('Ts2') + + self.assertEqual( + # C[*Ts1], + # C[*Ts1], + ) + self.assertEqual( + D[Unpack[Ts1]], + D[Unpack[Ts1]], + ) + + self.assertEqual( + C[*Ts1, *Ts2], + C[*Ts1, *Ts2], + ) + self.assertEqual( + D[Unpack[Ts1], Unpack[Ts2]], + D[Unpack[Ts1], Unpack[Ts2]], + ) + + self.assertEqual( + C[int, *Ts1, *Ts2], + C[int, *Ts1, *Ts2], + ) + self.assertEqual( + D[int, Unpack[Ts1], Unpack[Ts2]], + D[int, Unpack[Ts1], Unpack[Ts2]], + ) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_variadic_class_arg_ordering_matters(self): + Ts = TypeVarTuple('Ts') + # class C(Generic[*Ts]): pass + class D(Generic[Unpack[Ts]]): pass + + self.assertNotEqual( + C[int, str], + C[str, int], + ) + self.assertNotEqual( + D[int, str], + D[str, int], + ) + + Ts1 = TypeVarTuple('Ts1') + Ts2 = TypeVarTuple('Ts2') + + self.assertNotEqual( + C[*Ts1, *Ts2], + C[*Ts2, *Ts1], + ) + self.assertNotEqual( + D[Unpack[Ts1], Unpack[Ts2]], + D[Unpack[Ts2], Unpack[Ts1]], + ) + + def test_variadic_class_arg_typevartuple_identity_matters(self): + Ts = TypeVarTuple('Ts') + Ts1 = TypeVarTuple('Ts1') + Ts2 = TypeVarTuple('Ts2') + + # class C(Generic[*Ts]): pass + class D(Generic[Unpack[Ts]]): pass + + # self.assertNotEqual(C[*Ts1], C[*Ts2]) + self.assertNotEqual(D[Unpack[Ts1]], D[Unpack[Ts2]]) + +class TypeVarTuplePicklingTests(BaseTestCase): + # These are slightly awkward tests to run, because TypeVarTuples are only + # picklable if defined in the global scope. We therefore need to push + # various things defined in these tests into the global scope with `global` + # statements at the start of each test. + + # TODO: RUSTPYTHON + @unittest.expectedFailure + @all_pickle_protocols + def test_pickling_then_unpickling_results_in_same_identity(self, proto): + global global_Ts1 # See explanation at start of class. + global_Ts1 = TypeVarTuple('global_Ts1') + global_Ts2 = pickle.loads(pickle.dumps(global_Ts1, proto)) + self.assertIs(global_Ts1, global_Ts2) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + @all_pickle_protocols + def test_pickling_then_unpickling_unpacked_results_in_same_identity(self, proto): + global global_Ts # See explanation at start of class. + global_Ts = TypeVarTuple('global_Ts') + + unpacked1 = (*global_Ts,)[0] + unpacked2 = pickle.loads(pickle.dumps(unpacked1, proto)) + self.assertIs(unpacked1, unpacked2) + + unpacked3 = Unpack[global_Ts] + unpacked4 = pickle.loads(pickle.dumps(unpacked3, proto)) + self.assertIs(unpacked3, unpacked4) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + @all_pickle_protocols + def test_pickling_then_unpickling_tuple_with_typevartuple_equality( + self, proto + ): + global global_T, global_Ts # See explanation at start of class. + global_T = TypeVar('global_T') + global_Ts = TypeVarTuple('global_Ts') + + tuples = [ + # TODO: RUSTPYTHON + # tuple[*global_Ts], + Tuple[Unpack[global_Ts]], + + tuple[T, *global_Ts], + Tuple[T, Unpack[global_Ts]], + + tuple[int, *global_Ts], + Tuple[int, Unpack[global_Ts]], + ] + for t in tuples: + t2 = pickle.loads(pickle.dumps(t, proto)) + self.assertEqual(t, t2) + + + +class UnionTests(BaseTestCase): + + def test_basics(self): + u = Union[int, float] + self.assertNotEqual(u, Union) + + def test_union_isinstance(self): + self.assertTrue(isinstance(42, Union[int, str])) + self.assertTrue(isinstance('abc', Union[int, str])) + self.assertFalse(isinstance(3.14, Union[int, str])) + self.assertTrue(isinstance(42, Union[int, list[int]])) + self.assertTrue(isinstance(42, Union[int, Any])) + + def test_union_isinstance_type_error(self): + with self.assertRaises(TypeError): + isinstance(42, Union[str, list[int]]) + with self.assertRaises(TypeError): + isinstance(42, Union[list[int], int]) + with self.assertRaises(TypeError): + isinstance(42, Union[list[int], str]) + with self.assertRaises(TypeError): + isinstance(42, Union[str, Any]) + with self.assertRaises(TypeError): + isinstance(42, Union[Any, int]) + with self.assertRaises(TypeError): + isinstance(42, Union[Any, str]) + + def test_optional_isinstance(self): + self.assertTrue(isinstance(42, Optional[int])) + self.assertTrue(isinstance(None, Optional[int])) + self.assertFalse(isinstance('abc', Optional[int])) + + def test_optional_isinstance_type_error(self): + with self.assertRaises(TypeError): + isinstance(42, Optional[list[int]]) + with self.assertRaises(TypeError): + isinstance(None, Optional[list[int]]) + with self.assertRaises(TypeError): + isinstance(42, Optional[Any]) + with self.assertRaises(TypeError): + isinstance(None, Optional[Any]) + + def test_union_issubclass(self): + self.assertTrue(issubclass(int, Union[int, str])) + self.assertTrue(issubclass(str, Union[int, str])) + self.assertFalse(issubclass(float, Union[int, str])) + self.assertTrue(issubclass(int, Union[int, list[int]])) + self.assertTrue(issubclass(int, Union[int, Any])) + self.assertFalse(issubclass(int, Union[str, Any])) + self.assertTrue(issubclass(int, Union[Any, int])) + self.assertFalse(issubclass(int, Union[Any, str])) + + def test_union_issubclass_type_error(self): + with self.assertRaises(TypeError): + issubclass(int, Union) + with self.assertRaises(TypeError): + issubclass(Union, int) + with self.assertRaises(TypeError): + issubclass(Union[int, str], int) + with self.assertRaises(TypeError): + issubclass(int, Union[str, list[int]]) + with self.assertRaises(TypeError): + issubclass(int, Union[list[int], int]) + with self.assertRaises(TypeError): + issubclass(int, Union[list[int], str]) + + def test_optional_issubclass(self): + self.assertTrue(issubclass(int, Optional[int])) + self.assertTrue(issubclass(type(None), Optional[int])) + self.assertFalse(issubclass(str, Optional[int])) + self.assertTrue(issubclass(Any, Optional[Any])) + self.assertTrue(issubclass(type(None), Optional[Any])) + self.assertFalse(issubclass(int, Optional[Any])) + + def test_optional_issubclass_type_error(self): + with self.assertRaises(TypeError): + issubclass(list[int], Optional[list[int]]) + with self.assertRaises(TypeError): + issubclass(type(None), Optional[list[int]]) + with self.assertRaises(TypeError): + issubclass(int, Optional[list[int]]) + + def test_union_any(self): + u = Union[Any] + self.assertEqual(u, Any) + u1 = Union[int, Any] + u2 = Union[Any, int] + u3 = Union[Any, object] + self.assertEqual(u1, u2) + self.assertNotEqual(u1, Any) + self.assertNotEqual(u2, Any) + self.assertNotEqual(u3, Any) + + def test_union_object(self): + u = Union[object] + self.assertEqual(u, object) + u1 = Union[int, object] + u2 = Union[object, int] + self.assertEqual(u1, u2) + self.assertNotEqual(u1, object) + self.assertNotEqual(u2, object) + + def test_unordered(self): + u1 = Union[int, float] + u2 = Union[float, int] + self.assertEqual(u1, u2) + + def test_single_class_disappears(self): + t = Union[Employee] + self.assertIs(t, Employee) + + def test_base_class_kept(self): + u = Union[Employee, Manager] + self.assertNotEqual(u, Employee) + self.assertIn(Employee, u.__args__) + self.assertIn(Manager, u.__args__) + + def test_union_union(self): + u = Union[int, float] + v = Union[u, Employee] + self.assertEqual(v, Union[int, float, Employee]) + + def test_union_of_unhashable(self): + class UnhashableMeta(type): + __hash__ = None + + class A(metaclass=UnhashableMeta): ... + class B(metaclass=UnhashableMeta): ... + + self.assertEqual(Union[A, B].__args__, (A, B)) + union1 = Union[A, B] + with self.assertRaises(TypeError): + hash(union1) + + union2 = Union[int, B] + with self.assertRaises(TypeError): + hash(union2) + + union3 = Union[A, int] + with self.assertRaises(TypeError): + hash(union3) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_repr(self): + self.assertEqual(repr(Union), 'typing.Union') + u = Union[Employee, int] + self.assertEqual(repr(u), 'typing.Union[%s.Employee, int]' % __name__) + u = Union[int, Employee] + self.assertEqual(repr(u), 'typing.Union[int, %s.Employee]' % __name__) + T = TypeVar('T') + u = Union[T, int][int] + self.assertEqual(repr(u), repr(int)) + u = Union[List[int], int] + self.assertEqual(repr(u), 'typing.Union[typing.List[int], int]') + u = Union[list[int], dict[str, float]] + self.assertEqual(repr(u), 'typing.Union[list[int], dict[str, float]]') + u = Union[int | float] + self.assertEqual(repr(u), 'typing.Union[int, float]') + + u = Union[None, str] + self.assertEqual(repr(u), 'typing.Optional[str]') + u = Union[str, None] + self.assertEqual(repr(u), 'typing.Optional[str]') + u = Union[None, str, int] + self.assertEqual(repr(u), 'typing.Union[NoneType, str, int]') + u = Optional[str] + self.assertEqual(repr(u), 'typing.Optional[str]') + + def test_dir(self): + dir_items = set(dir(Union[str, int])) + for required_item in [ + '__args__', '__parameters__', '__origin__', + ]: + with self.subTest(required_item=required_item): + self.assertIn(required_item, dir_items) + + def test_cannot_subclass(self): + with self.assertRaisesRegex(TypeError, + r'Cannot subclass typing\.Union'): + class C(Union): + pass + with self.assertRaisesRegex(TypeError, CANNOT_SUBCLASS_TYPE): + class D(type(Union)): + pass + with self.assertRaisesRegex(TypeError, + r'Cannot subclass typing\.Union\[int, str\]'): + class E(Union[int, str]): + pass + + def test_cannot_instantiate(self): + with self.assertRaises(TypeError): + Union() + with self.assertRaises(TypeError): + type(Union)() + u = Union[int, float] with self.assertRaises(TypeError): u() with self.assertRaises(TypeError): @@ -410,6 +2371,35 @@ def Elem(*args): Union[Elem, str] # Nor should this + def test_union_of_literals(self): + self.assertEqual(Union[Literal[1], Literal[2]].__args__, + (Literal[1], Literal[2])) + self.assertEqual(Union[Literal[1], Literal[1]], + Literal[1]) + + self.assertEqual(Union[Literal[False], Literal[0]].__args__, + (Literal[False], Literal[0])) + self.assertEqual(Union[Literal[True], Literal[1]].__args__, + (Literal[True], Literal[1])) + + import enum + class Ints(enum.IntEnum): + A = 0 + B = 1 + + self.assertEqual(Union[Literal[Ints.A], Literal[Ints.A]], + Literal[Ints.A]) + self.assertEqual(Union[Literal[Ints.B], Literal[Ints.B]], + Literal[Ints.B]) + + self.assertEqual(Union[Literal[Ints.A], Literal[Ints.B]].__args__, + (Literal[Ints.A], Literal[Ints.B])) + + self.assertEqual(Union[Literal[0], Literal[Ints.A], Literal[False]].__args__, + (Literal[0], Literal[Ints.A], Literal[False])) + self.assertEqual(Union[Literal[1], Literal[Ints.B], Literal[True]].__args__, + (Literal[1], Literal[Ints.B], Literal[True])) + class TupleTests(BaseTestCase): @@ -441,6 +2431,8 @@ def test_tuple_instance_type_error(self): isinstance((0, 0), Tuple[int, int]) self.assertIsInstance((0, 0), Tuple) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_repr(self): self.assertEqual(repr(Tuple), 'typing.Tuple') self.assertEqual(repr(Tuple[()]), 'typing.Tuple[()]') @@ -476,6 +2468,15 @@ def test_eq_hash(self): self.assertNotEqual(C, Callable[..., int]) self.assertNotEqual(C, Callable) + def test_dir(self): + Callable = self.Callable + dir_items = set(dir(Callable[..., int])) + for required_item in [ + '__args__', '__parameters__', '__origin__', + ]: + with self.subTest(required_item=required_item): + self.assertIn(required_item, dir_items) + def test_cannot_instantiate(self): Callable = self.Callable with self.assertRaises(TypeError): @@ -505,14 +2506,16 @@ def test_callable_instance_type_error(self): def f(): pass with self.assertRaises(TypeError): - self.assertIsInstance(f, Callable[[], None]) + isinstance(f, Callable[[], None]) with self.assertRaises(TypeError): - self.assertIsInstance(f, Callable[[], Any]) + isinstance(f, Callable[[], Any]) with self.assertRaises(TypeError): - self.assertNotIsInstance(None, Callable[[], None]) + isinstance(None, Callable[[], None]) with self.assertRaises(TypeError): - self.assertNotIsInstance(None, Callable[[], Any]) + isinstance(None, Callable[[], Any]) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_repr(self): Callable = self.Callable fullname = f'{Callable.__module__}.Callable' @@ -525,6 +2528,7 @@ def test_repr(self): ct3 = Callable[[str, float], list[int]] self.assertEqual(repr(ct3), f'{fullname}[[str, float], list[int]]') + @unittest.skip("TODO: RUSTPYTHON") def test_callable_with_ellipsis(self): Callable = self.Callable def foo(a: Callable[..., T]): @@ -557,16 +2561,35 @@ def test_weakref(self): alias = Callable[[int, str], float] self.assertEqual(weakref.ref(alias)(), alias) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_pickle(self): + global T_pickle, P_pickle, TS_pickle # needed for pickling Callable = self.Callable - alias = Callable[[int, str], float] - for proto in range(pickle.HIGHEST_PROTOCOL + 1): - s = pickle.dumps(alias, proto) - loaded = pickle.loads(s) - self.assertEqual(alias.__origin__, loaded.__origin__) - self.assertEqual(alias.__args__, loaded.__args__) - self.assertEqual(alias.__parameters__, loaded.__parameters__) + T_pickle = TypeVar('T_pickle') + P_pickle = ParamSpec('P_pickle') + TS_pickle = TypeVarTuple('TS_pickle') + + samples = [ + Callable[[int, str], float], + Callable[P_pickle, int], + Callable[P_pickle, T_pickle], + Callable[Concatenate[int, P_pickle], int], + Callable[Concatenate[*TS_pickle, P_pickle], int], + ] + for alias in samples: + for proto in range(pickle.HIGHEST_PROTOCOL + 1): + with self.subTest(alias=alias, proto=proto): + s = pickle.dumps(alias, proto) + loaded = pickle.loads(s) + self.assertEqual(alias.__origin__, loaded.__origin__) + self.assertEqual(alias.__args__, loaded.__args__) + self.assertEqual(alias.__parameters__, loaded.__parameters__) + del T_pickle, P_pickle, TS_pickle # cleaning up global state + + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_var_substitution(self): Callable = self.Callable fullname = f"{Callable.__module__}.Callable" @@ -574,8 +2597,7 @@ def test_var_substitution(self): C2 = Callable[[KT, T], VT] C3 = Callable[..., T] self.assertEqual(C1[str], Callable[[int, str], str]) - if Callable is typing.Callable: - self.assertEqual(C1[None], Callable[[int, type(None)], type(None)]) + self.assertEqual(C1[None], Callable[[int, type(None)], type(None)]) self.assertEqual(C2[int, float, str], Callable[[int, float], str]) self.assertEqual(C3[int], Callable[..., int]) self.assertEqual(C3[NoReturn], Callable[..., NoReturn]) @@ -592,6 +2614,17 @@ def test_var_substitution(self): self.assertEqual(C5[int, str, float], Callable[[typing.List[int], tuple[str, int], float], int]) + @unittest.skip("TODO: RUSTPYTHON") + def test_type_subst_error(self): + Callable = self.Callable + P = ParamSpec('P') + T = TypeVar('T') + + pat = "Expected a list of types, an ellipsis, ParamSpec, or Concatenate." + + with self.assertRaisesRegex(TypeError, pat): + Callable[P, T][0, int] + def test_type_erasure(self): Callable = self.Callable class C1(Callable): @@ -601,6 +2634,8 @@ def __call__(self): self.assertIs(a().__class__, C1) self.assertEqual(a().__orig_class__, C1[[int], T]) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_paramspec(self): Callable = self.Callable fullname = f"{Callable.__module__}.Callable" @@ -635,6 +2670,8 @@ def test_paramspec(self): self.assertEqual(repr(C2), f"{fullname}[~P, int]") self.assertEqual(repr(C2[int, str]), f"{fullname}[[int, str], int]") + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_concatenate(self): Callable = self.Callable fullname = f"{Callable.__module__}.Callable" @@ -649,8 +2686,7 @@ def test_concatenate(self): self.assertEqual(C[[], int], Callable[[int], int]) self.assertEqual(C[Concatenate[str, P2], int], Callable[Concatenate[int, str, P2], int]) - with self.assertRaises(TypeError): - C[..., int] + self.assertEqual(C[..., int], Callable[Concatenate[int, ...], int]) C = Callable[Concatenate[int, P], int] self.assertEqual(repr(C), @@ -661,9 +2697,54 @@ def test_concatenate(self): self.assertEqual(C[[]], Callable[[int], int]) self.assertEqual(C[Concatenate[str, P2]], Callable[Concatenate[int, str, P2], int]) - with self.assertRaises(TypeError): - C[...] + self.assertEqual(C[...], Callable[Concatenate[int, ...], int]) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_nested_paramspec(self): + # Since Callable has some special treatment, we want to be sure + # that substituion works correctly, see gh-103054 + Callable = self.Callable + P = ParamSpec('P') + P2 = ParamSpec('P2') + T = TypeVar('T') + T2 = TypeVar('T2') + Ts = TypeVarTuple('Ts') + class My(Generic[P, T]): + pass + + self.assertEqual(My.__parameters__, (P, T)) + + C1 = My[[int, T2], Callable[P2, T2]] + self.assertEqual(C1.__args__, ((int, T2), Callable[P2, T2])) + self.assertEqual(C1.__parameters__, (T2, P2)) + self.assertEqual(C1[str, [list[int], bytes]], + My[[int, str], Callable[[list[int], bytes], str]]) + + C2 = My[[Callable[[T2], int], list[T2]], str] + self.assertEqual(C2.__args__, ((Callable[[T2], int], list[T2]), str)) + self.assertEqual(C2.__parameters__, (T2,)) + self.assertEqual(C2[list[str]], + My[[Callable[[list[str]], int], list[list[str]]], str]) + + C3 = My[[Callable[P2, T2], T2], T2] + self.assertEqual(C3.__args__, ((Callable[P2, T2], T2), T2)) + self.assertEqual(C3.__parameters__, (P2, T2)) + self.assertEqual(C3[[], int], + My[[Callable[[], int], int], int]) + self.assertEqual(C3[[str, bool], int], + My[[Callable[[str, bool], int], int], int]) + self.assertEqual(C3[[str, bool], T][int], + My[[Callable[[str, bool], int], int], int]) + + C4 = My[[Callable[[int, *Ts, str], T2], T2], T2] + self.assertEqual(C4.__args__, ((Callable[[int, *Ts, str], T2], T2), T2)) + self.assertEqual(C4.__parameters__, (Ts, T2)) + self.assertEqual(C4[bool, bytes, float], + My[[Callable[[int, bool, bytes, str], float], float], float]) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_errors(self): Callable = self.Callable alias = Callable[[int, str], float] @@ -676,6 +2757,7 @@ def test_errors(self): with self.assertRaisesRegex(TypeError, "few arguments for"): C1[int] + class TypingCallableTests(BaseCallableTests, BaseTestCase): Callable = typing.Callable @@ -690,25 +2772,6 @@ def test_consistency(self): class CollectionsCallableTests(BaseCallableTests, BaseTestCase): Callable = collections.abc.Callable - # TODO: RUSTPYTHON - @unittest.expectedFailure - def test_errors(self): # TODO: RUSTPYTHON, remove when this passes - super().test_errors() # TODO: RUSTPYTHON, remove when this passes - - # TODO: RUSTPYTHON, AssertionError: 'collections.abc.Callable[__main__.ParamSpec, typing.TypeVar]' != 'collections.abc.Callable[~P, ~T]' - @unittest.expectedFailure - def test_paramspec(self): # TODO: RUSTPYTHON, remove when this passes - super().test_paramspec() # TODO: RUSTPYTHON, remove when this passes - - # TODO: RUSTPYTHON - @unittest.expectedFailure - def test_concatenate(self): # TODO: RUSTPYTHON, remove when this passes - super().test_concatenate() # TODO: RUSTPYTHON, remove when this passes - - # TODO: RUSTPYTHON might be fixed by updating typing to 3.12 - @unittest.expectedFailure - def test_repr(self): # TODO: RUSTPYTHON, remove when this passes - super().test_repr() # TODO: RUSTPYTHON, remove when this passes class LiteralTests(BaseTestCase): @@ -723,9 +2786,16 @@ def test_basics(self): Literal[Literal[1, 2], Literal[4, 5]] Literal[b"foo", u"bar"] + def test_enum(self): + import enum + class My(enum.Enum): + A = 'A' + + self.assertEqual(Literal[My.A].__args__, (My.A,)) + def test_illegal_parameters_do_not_raise_runtime_errors(self): # Type checkers should reject these types, but we do not - # raise errors at runtime to maintain maximium flexibility. + # raise errors at runtime to maintain maximum flexibility. Literal[int] Literal[3j + 2, ..., ()] Literal[{"foo": 3, "bar": 4}] @@ -743,6 +2813,14 @@ def test_repr(self): self.assertEqual(repr(Literal[None]), "typing.Literal[None]") self.assertEqual(repr(Literal[1, 2, 3, 3]), "typing.Literal[1, 2, 3]") + def test_dir(self): + dir_items = set(dir(Literal[1, 2, 3])) + for required_item in [ + '__args__', '__parameters__', '__origin__', + ]: + with self.subTest(required_item=required_item): + self.assertIn(required_item, dir_items) + def test_cannot_init(self): with self.assertRaises(TypeError): Literal() @@ -804,6 +2882,20 @@ def test_flatten(self): self.assertEqual(l, Literal[1, 2, 3]) self.assertEqual(l.__args__, (1, 2, 3)) + def test_does_not_flatten_enum(self): + import enum + class Ints(enum.IntEnum): + A = 1 + B = 2 + + l = Literal[ + Literal[Ints.A], + Literal[Ints.B], + Literal[1], + Literal[2], + ] + self.assertEqual(l.__args__, (Ints.A, Ints.B, 1, 2)) + XK = TypeVar('XK', str, bytes) XV = TypeVar('XV') @@ -888,29 +2980,75 @@ class HasCallProtocol(Protocol): class ProtocolTests(BaseTestCase): - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_basic_protocol(self): @runtime_checkable class P(Protocol): def meth(self): pass - class C: pass + class C: pass + + class D: + def meth(self): + pass + + def f(): + pass + + self.assertIsSubclass(D, P) + self.assertIsInstance(D(), P) + self.assertNotIsSubclass(C, P) + self.assertNotIsInstance(C(), P) + self.assertNotIsSubclass(types.FunctionType, P) + self.assertNotIsInstance(f, P) + + def test_runtime_checkable_generic_non_protocol(self): + # Make sure this doesn't raise AttributeError + with self.assertRaisesRegex( + TypeError, + "@runtime_checkable can be only applied to protocol classes", + ): + @runtime_checkable + class Foo[T]: ... + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_runtime_checkable_generic(self): + # @runtime_checkable + # class Foo[T](Protocol): + # def meth(self) -> T: ... + # pass + + class Impl: + def meth(self) -> int: ... + + self.assertIsSubclass(Impl, Foo) + + class NotImpl: + def method(self) -> int: ... + + self.assertNotIsSubclass(NotImpl, Foo) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_pep695_generics_can_be_runtime_checkable(self): + # @runtime_checkable + # class HasX(Protocol): + # x: int + + class Bar[T]: + x: T + def __init__(self, x): + self.x = x - class D: - def meth(self): - pass + class Capybara[T]: + y: str + def __init__(self, y): + self.y = y - def f(): - pass + self.assertIsInstance(Bar(1), HasX) + self.assertNotIsInstance(Capybara('a'), HasX) - self.assertIsSubclass(D, P) - self.assertIsInstance(D(), P) - self.assertNotIsSubclass(C, P) - self.assertNotIsInstance(C(), P) - self.assertNotIsSubclass(types.FunctionType, P) - self.assertNotIsInstance(f, P) # TODO: RUSTPYTHON @unittest.expectedFailure @@ -936,20 +3074,22 @@ def f(): self.assertIsInstance(f, HasCallProtocol) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_no_inheritance_from_nominal(self): class C: pass - class BP(Protocol): pass + # class BP(Protocol): pass - with self.assertRaises(TypeError): - class P(C, Protocol): - pass - with self.assertRaises(TypeError): - class P(Protocol, C): - pass - with self.assertRaises(TypeError): - class P(BP, C, Protocol): - pass + # with self.assertRaises(TypeError): + # class P(C, Protocol): + # pass + # with self.assertRaises(TypeError): + # class Q(Protocol, C): + # pass + # with self.assertRaises(TypeError): + # class R(BP, C, Protocol): + # pass class D(BP, C): pass @@ -961,7 +3101,7 @@ class E(C, BP): pass # TODO: RUSTPYTHON @unittest.expectedFailure def test_no_instantiation(self): - class P(Protocol): pass + # class P(Protocol): pass with self.assertRaises(TypeError): P() @@ -989,6 +3129,35 @@ class CG(PG[T]): pass with self.assertRaises(TypeError): CG[int](42) + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_protocol_defining_init_does_not_get_overridden(self): + # check that P.__init__ doesn't get clobbered + # see https://bugs.python.org/issue44807 + + # class P(Protocol): + # x: int + # def __init__(self, x: int) -> None: + # self.x = x + class C: pass + + c = C() + P.__init__(c, 1) + self.assertEqual(c.x, 1) + + + def test_concrete_class_inheriting_init_from_protocol(self): + class P(Protocol): + x: int + def __init__(self, x: int) -> None: + self.x = x + + class C(P): pass + + c = C(1) + self.assertIsInstance(c, C) + self.assertEqual(c.x, 1) + def test_cannot_instantiate_abstract(self): @runtime_checkable class P(Protocol): @@ -1007,8 +3176,6 @@ def ameth(self) -> int: B() self.assertIsInstance(C(), P) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_subprotocols_extending(self): class P1(Protocol): def meth1(self): @@ -1041,8 +3208,6 @@ def meth2(self): self.assertIsInstance(C(), P2) self.assertIsSubclass(C, P2) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_subprotocols_merging(self): class P1(Protocol): def meth1(self): @@ -1104,643 +3269,332 @@ def x(self): ... self.assertIsSubclass(C, PG) self.assertIsSubclass(BadP, PG) - with self.assertRaises(TypeError): + no_subscripted_generics = ( + "Subscripted generics cannot be used with class and instance checks" + ) + + with self.assertRaisesRegex(TypeError, no_subscripted_generics): issubclass(C, PG[T]) - with self.assertRaises(TypeError): + with self.assertRaisesRegex(TypeError, no_subscripted_generics): issubclass(C, PG[C]) - with self.assertRaises(TypeError): + + only_runtime_checkable_protocols = ( + "Instance and class checks can only be used with " + "@runtime_checkable protocols" + ) + + with self.assertRaisesRegex(TypeError, only_runtime_checkable_protocols): issubclass(C, BadP) - with self.assertRaises(TypeError): + with self.assertRaisesRegex(TypeError, only_runtime_checkable_protocols): issubclass(C, BadPG) - with self.assertRaises(TypeError): + + with self.assertRaisesRegex(TypeError, no_subscripted_generics): issubclass(P, PG[T]) - with self.assertRaises(TypeError): + with self.assertRaisesRegex(TypeError, no_subscripted_generics): issubclass(PG, PG[int]) - # TODO: RUSTPYTHON - @unittest.expectedFailure - def test_protocols_issubclass_non_callable(self): - class C: - x = 1 - - @runtime_checkable - class PNonCall(Protocol): - x = 1 - - with self.assertRaises(TypeError): - issubclass(C, PNonCall) - self.assertIsInstance(C(), PNonCall) - PNonCall.register(C) - with self.assertRaises(TypeError): - issubclass(C, PNonCall) - self.assertIsInstance(C(), PNonCall) - - # check that non-protocol subclasses are not affected - class D(PNonCall): ... - - self.assertNotIsSubclass(C, D) - self.assertNotIsInstance(C(), D) - D.register(C) - self.assertIsSubclass(C, D) - self.assertIsInstance(C(), D) - with self.assertRaises(TypeError): - issubclass(D, PNonCall) - - def test_protocols_isinstance(self): - T = TypeVar('T') - - @runtime_checkable - class P(Protocol): - def meth(x): ... - - @runtime_checkable - class PG(Protocol[T]): - def meth(x): ... - - class BadP(Protocol): - def meth(x): ... - - class BadPG(Protocol[T]): - def meth(x): ... - - class C: - def meth(x): ... - - self.assertIsInstance(C(), P) - self.assertIsInstance(C(), PG) - with self.assertRaises(TypeError): - isinstance(C(), PG[T]) - with self.assertRaises(TypeError): - isinstance(C(), PG[C]) - with self.assertRaises(TypeError): - isinstance(C(), BadP) - with self.assertRaises(TypeError): - isinstance(C(), BadPG) - - # TODO: RUSTPYTHON - @unittest.expectedFailure - def test_protocols_isinstance_py36(self): - class APoint: - def __init__(self, x, y, label): - self.x = x - self.y = y - self.label = label - - class BPoint: - label = 'B' - - def __init__(self, x, y): - self.x = x - self.y = y - - class C: - def __init__(self, attr): - self.attr = attr - - def meth(self, arg): - return 0 - - class Bad: pass - - self.assertIsInstance(APoint(1, 2, 'A'), Point) - self.assertIsInstance(BPoint(1, 2), Point) - self.assertNotIsInstance(MyPoint(), Point) - self.assertIsInstance(BPoint(1, 2), Position) - self.assertIsInstance(Other(), Proto) - self.assertIsInstance(Concrete(), Proto) - self.assertIsInstance(C(42), Proto) - self.assertNotIsInstance(Bad(), Proto) - self.assertNotIsInstance(Bad(), Point) - self.assertNotIsInstance(Bad(), Position) - self.assertNotIsInstance(Bad(), Concrete) - self.assertNotIsInstance(Other(), Concrete) - self.assertIsInstance(NT(1, 2), Position) - - def test_protocols_isinstance_init(self): - T = TypeVar('T') - - @runtime_checkable - class P(Protocol): - x = 1 - - @runtime_checkable - class PG(Protocol[T]): - x = 1 - - class C: - def __init__(self, x): - self.x = x - - self.assertIsInstance(C(1), P) - self.assertIsInstance(C(1), PG) - - def test_protocol_checks_after_subscript(self): - class P(Protocol[T]): pass - class C(P[T]): pass - class Other1: pass - class Other2: pass - CA = C[Any] - - self.assertNotIsInstance(Other1(), C) - self.assertNotIsSubclass(Other2, C) - - class D1(C[Any]): pass - class D2(C[Any]): pass - CI = C[int] - - self.assertIsInstance(D1(), C) - self.assertIsSubclass(D2, C) - - # TODO: RUSTPYTHON - @unittest.expectedFailure - def test_protocols_support_register(self): - @runtime_checkable - class P(Protocol): - x = 1 - - class PM(Protocol): - def meth(self): pass - - class D(PM): pass - - class C: pass - - D.register(C) - P.register(C) - self.assertIsInstance(C(), P) - self.assertIsInstance(C(), D) - - def test_none_on_non_callable_doesnt_block_implementation(self): - @runtime_checkable - class P(Protocol): - x = 1 - - class A: - x = 1 - - class B(A): - x = None - - class C: - def __init__(self): - self.x = None - - self.assertIsInstance(B(), P) - self.assertIsInstance(C(), P) - - # TODO: RUSTPYTHON - @unittest.expectedFailure - def test_none_on_callable_blocks_implementation(self): - @runtime_checkable - class P(Protocol): - def x(self): ... - - class A: - def x(self): ... - - class B(A): - x = None - - class C: - def __init__(self): - self.x = None - - self.assertNotIsInstance(B(), P) - self.assertNotIsInstance(C(), P) - - # TODO: RUSTPYTHON - @unittest.expectedFailure - def test_non_protocol_subclasses(self): - class P(Protocol): - x = 1 - - @runtime_checkable - class PR(Protocol): - def meth(self): pass - - class NonP(P): - x = 1 - - class NonPR(PR): pass - - class C: - x = 1 - - class D: - def meth(self): pass - - self.assertNotIsInstance(C(), NonP) - self.assertNotIsInstance(D(), NonPR) - self.assertNotIsSubclass(C, NonP) - self.assertNotIsSubclass(D, NonPR) - self.assertIsInstance(NonPR(), PR) - self.assertIsSubclass(NonPR, PR) - - def test_custom_subclasshook(self): - class P(Protocol): - x = 1 - - class OKClass: pass - - class BadClass: - x = 1 - - class C(P): - @classmethod - def __subclasshook__(cls, other): - return other.__name__.startswith("OK") - - self.assertIsInstance(OKClass(), C) - self.assertNotIsInstance(BadClass(), C) - self.assertIsSubclass(OKClass, C) - self.assertNotIsSubclass(BadClass, C) - - def test_issubclass_fails_correctly(self): - @runtime_checkable - class P(Protocol): - x = 1 - - class C: pass - - with self.assertRaises(TypeError): - issubclass(C(), P) - - def test_defining_generic_protocols(self): - T = TypeVar('T') - S = TypeVar('S') - - @runtime_checkable - class PR(Protocol[T, S]): - def meth(self): pass - - class P(PR[int, T], Protocol[T]): - y = 1 - - with self.assertRaises(TypeError): - PR[int] - with self.assertRaises(TypeError): - P[int, str] - - class C(PR[int, T]): pass - - self.assertIsInstance(C[str](), C) - - # TODO: RUSTPYTHON - @unittest.expectedFailure - def test_defining_generic_protocols_old_style(self): - T = TypeVar('T') - S = TypeVar('S') - - @runtime_checkable - class PR(Protocol, Generic[T, S]): - def meth(self): pass - - class P(PR[int, str], Protocol): - y = 1 - - with self.assertRaises(TypeError): - issubclass(PR[int, str], PR) - self.assertIsSubclass(P, PR) - with self.assertRaises(TypeError): - PR[int] - - class P1(Protocol, Generic[T]): - def bar(self, x: T) -> str: ... - - class P2(Generic[T], Protocol): - def bar(self, x: T) -> str: ... - - @runtime_checkable - class PSub(P1[str], Protocol): - x = 1 - - class Test: - x = 1 - - def bar(self, x: str) -> str: - return x - - self.assertIsInstance(Test(), PSub) - - def test_init_called(self): - T = TypeVar('T') - - class P(Protocol[T]): pass - - class C(P[T]): - def __init__(self): - self.test = 'OK' - - self.assertEqual(C[int]().test, 'OK') - - class B: - def __init__(self): - self.test = 'OK' - - class D1(B, P[T]): - pass + only_classes_allowed = r"issubclass\(\) arg 1 must be a class" - self.assertEqual(D1[int]().test, 'OK') + with self.assertRaisesRegex(TypeError, only_classes_allowed): + issubclass(1, P) + with self.assertRaisesRegex(TypeError, only_classes_allowed): + issubclass(1, PG) + with self.assertRaisesRegex(TypeError, only_classes_allowed): + issubclass(1, BadP) + with self.assertRaisesRegex(TypeError, only_classes_allowed): + issubclass(1, BadPG) - class D2(P[T], B): - pass - self.assertEqual(D2[int]().test, 'OK') + def test_implicit_issubclass_between_two_protocols(self): + @runtime_checkable + class CallableMembersProto(Protocol): + def meth(self): ... - # TODO: RUSTPYTHON - @unittest.expectedFailure - def test_new_called(self): - T = TypeVar('T') + # All the below protocols should be considered "subclasses" + # of CallableMembersProto at runtime, + # even though none of them explicitly subclass CallableMembersProto - class P(Protocol[T]): pass + class IdenticalProto(Protocol): + def meth(self): ... - class C(P[T]): - def __new__(cls, *args): - self = super().__new__(cls, *args) - self.test = 'OK' - return self + class SupersetProto(Protocol): + def meth(self): ... + def meth2(self): ... - self.assertEqual(C[int]().test, 'OK') - with self.assertRaises(TypeError): - C[int](42) - with self.assertRaises(TypeError): - C[int](a=42) + class NonCallableMembersProto(Protocol): + meth: Callable[[], None] - # TODO: RUSTPYTHON the last line breaks any tests that use unittest.mock - # See https://github.com/RustPython/RustPython/issues/5190#issuecomment-2010535802 - # It's possible that updating typing to 3.12 will resolve this - @unittest.skip("TODO: RUSTPYTHON this test breaks other tests that use unittest.mock") - def test_protocols_bad_subscripts(self): - T = TypeVar('T') - S = TypeVar('S') - with self.assertRaises(TypeError): - class P(Protocol[T, T]): pass - with self.assertRaises(TypeError): - class P(Protocol[int]): pass - with self.assertRaises(TypeError): - class P(Protocol[T], Protocol[S]): pass - with self.assertRaises(TypeError): - class P(typing.Mapping[T, S], Protocol[T]): pass + class NonCallableMembersSupersetProto(Protocol): + meth: Callable[[], None] + meth2: Callable[[str, int], bool] - def test_generic_protocols_repr(self): - T = TypeVar('T') - S = TypeVar('S') + class MixedMembersProto1(Protocol): + meth: Callable[[], None] + def meth2(self): ... - class P(Protocol[T, S]): pass + class MixedMembersProto2(Protocol): + def meth(self): ... + meth2: Callable[[str, int], bool] - self.assertTrue(repr(P[T, S]).endswith('P[~T, ~S]')) - self.assertTrue(repr(P[int, str]).endswith('P[int, str]')) + for proto in ( + IdenticalProto, SupersetProto, NonCallableMembersProto, + NonCallableMembersSupersetProto, MixedMembersProto1, MixedMembersProto2 + ): + with self.subTest(proto=proto.__name__): + self.assertIsSubclass(proto, CallableMembersProto) - def test_generic_protocols_eq(self): - T = TypeVar('T') - S = TypeVar('S') + # These two shouldn't be considered subclasses of CallableMembersProto, however, + # since they don't have the `meth` protocol member - class P(Protocol[T, S]): pass + class EmptyProtocol(Protocol): ... + class UnrelatedProtocol(Protocol): + def wut(self): ... - self.assertEqual(P, P) - self.assertEqual(P[int, T], P[int, T]) - self.assertEqual(P[T, T][Tuple[T, S]][int, str], - P[Tuple[int, str], Tuple[int, str]]) + self.assertNotIsSubclass(EmptyProtocol, CallableMembersProto) + self.assertNotIsSubclass(UnrelatedProtocol, CallableMembersProto) - def test_generic_protocols_special_from_generic(self): - T = TypeVar('T') + # These aren't protocols at all (despite having annotations), + # so they should only be considered subclasses of CallableMembersProto + # if they *actually have an attribute* matching the `meth` member + # (just having an annotation is insufficient) - class P(Protocol[T]): pass + class AnnotatedButNotAProtocol: + meth: Callable[[], None] - self.assertEqual(P.__parameters__, (T,)) - self.assertEqual(P[int].__parameters__, ()) - self.assertEqual(P[int].__args__, (int,)) - self.assertIs(P[int].__origin__, P) + class NotAProtocolButAnImplicitSubclass: + def meth(self): pass - # TODO: RUSTPYTHON - @unittest.expectedFailure - def test_generic_protocols_special_from_protocol(self): - @runtime_checkable - class PR(Protocol): - x = 1 + class NotAProtocolButAnImplicitSubclass2: + meth: Callable[[], None] + def meth(self): pass - class P(Protocol): - def meth(self): - pass + class NotAProtocolButAnImplicitSubclass3: + meth: Callable[[], None] + meth2: Callable[[int, str], bool] + def meth(self): pass + def meth2(self, x, y): return True - T = TypeVar('T') + self.assertNotIsSubclass(AnnotatedButNotAProtocol, CallableMembersProto) + self.assertIsSubclass(NotAProtocolButAnImplicitSubclass, CallableMembersProto) + self.assertIsSubclass(NotAProtocolButAnImplicitSubclass2, CallableMembersProto) + self.assertIsSubclass(NotAProtocolButAnImplicitSubclass3, CallableMembersProto) - class PG(Protocol[T]): - x = 1 + # TODO: RUSTPYTHON + @unittest.skip("TODO: RUSTPYTHON (no gc)") + def test_isinstance_checks_not_at_whim_of_gc(self): + self.addCleanup(gc.enable) + gc.disable() - def meth(self): + with self.assertRaisesRegex( + TypeError, + "Protocols can only inherit from other protocols" + ): + class Foo(collections.abc.Mapping, Protocol): pass - self.assertTrue(P._is_protocol) - self.assertTrue(PR._is_protocol) - self.assertTrue(PG._is_protocol) - self.assertFalse(P._is_runtime_protocol) - self.assertTrue(PR._is_runtime_protocol) - self.assertTrue(PG[int]._is_protocol) - self.assertEqual(typing._get_protocol_attrs(P), {'meth'}) - self.assertEqual(typing._get_protocol_attrs(PR), {'x'}) - self.assertEqual(frozenset(typing._get_protocol_attrs(PG)), - frozenset({'x', 'meth'})) + self.assertNotIsInstance([], collections.abc.Mapping) - def test_no_runtime_deco_on_nominal(self): - with self.assertRaises(TypeError): - @runtime_checkable - class C: pass + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_issubclass_and_isinstance_on_Protocol_itself(self): + class C: + def x(self): pass - class Proto(Protocol): - x = 1 + self.assertNotIsSubclass(object, Protocol) + self.assertNotIsInstance(object(), Protocol) - with self.assertRaises(TypeError): - @runtime_checkable - class Concrete(Proto): - pass + self.assertNotIsSubclass(str, Protocol) + self.assertNotIsInstance('foo', Protocol) - # TODO: RUSTPYTHON - @unittest.expectedFailure - def test_none_treated_correctly(self): - @runtime_checkable - class P(Protocol): - x = None # type: int + self.assertNotIsSubclass(C, Protocol) + self.assertNotIsInstance(C(), Protocol) - class B(object): pass + only_classes_allowed = r"issubclass\(\) arg 1 must be a class" - self.assertNotIsInstance(B(), P) + with self.assertRaisesRegex(TypeError, only_classes_allowed): + issubclass(1, Protocol) + with self.assertRaisesRegex(TypeError, only_classes_allowed): + issubclass('foo', Protocol) + with self.assertRaisesRegex(TypeError, only_classes_allowed): + issubclass(C(), Protocol) - class C: - x = 1 + T = TypeVar('T') - class D: - x = None + @runtime_checkable + class EmptyProtocol(Protocol): pass - self.assertIsInstance(C(), P) - self.assertIsInstance(D(), P) + @runtime_checkable + class SupportsStartsWith(Protocol): + def startswith(self, x: str) -> bool: ... - class CI: - def __init__(self): - self.x = 1 + @runtime_checkable + class SupportsX(Protocol[T]): + def x(self): ... - class DI: - def __init__(self): - self.x = None + for proto in EmptyProtocol, SupportsStartsWith, SupportsX: + with self.subTest(proto=proto.__name__): + self.assertIsSubclass(proto, Protocol) - self.assertIsInstance(C(), P) - self.assertIsInstance(D(), P) + # gh-105237 / PR #105239: + # check that the presence of Protocol subclasses + # where `issubclass(X, )` evaluates to True + # doesn't influence the result of `issubclass(X, Protocol)` - def test_protocols_in_unions(self): - class P(Protocol): - x = None # type: int + self.assertIsSubclass(object, EmptyProtocol) + self.assertIsInstance(object(), EmptyProtocol) + self.assertNotIsSubclass(object, Protocol) + self.assertNotIsInstance(object(), Protocol) - Alias = typing.Union[typing.Iterable, P] - Alias2 = typing.Union[P, typing.Iterable] - self.assertEqual(Alias, Alias2) + self.assertIsSubclass(str, SupportsStartsWith) + self.assertIsInstance('foo', SupportsStartsWith) + self.assertNotIsSubclass(str, Protocol) + self.assertNotIsInstance('foo', Protocol) - def test_protocols_pickleable(self): - global P, CP # pickle wants to reference the class by name - T = TypeVar('T') + self.assertIsSubclass(C, SupportsX) + self.assertIsInstance(C(), SupportsX) + self.assertNotIsSubclass(C, Protocol) + self.assertNotIsInstance(C(), Protocol) - @runtime_checkable - class P(Protocol[T]): + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_protocols_issubclass_non_callable(self): + class C: x = 1 - class CP(P[int]): - pass + @runtime_checkable + class PNonCall(Protocol): + x = 1 - c = CP() - c.foo = 42 - c.bar = 'abc' - for proto in range(pickle.HIGHEST_PROTOCOL + 1): - z = pickle.dumps(c, proto) - x = pickle.loads(z) - self.assertEqual(x.foo, 42) - self.assertEqual(x.bar, 'abc') - self.assertEqual(x.x, 1) - self.assertEqual(x.__dict__, {'foo': 42, 'bar': 'abc'}) - s = pickle.dumps(P) - D = pickle.loads(s) + non_callable_members_illegal = ( + "Protocols with non-method members don't support issubclass()" + ) - class E: - x = 1 + with self.assertRaisesRegex(TypeError, non_callable_members_illegal): + issubclass(C, PNonCall) - self.assertIsInstance(E(), D) + self.assertIsInstance(C(), PNonCall) + PNonCall.register(C) - # TODO: RUSTPYTHON - @unittest.expectedFailure - def test_supports_int(self): - self.assertIsSubclass(int, typing.SupportsInt) - self.assertNotIsSubclass(str, typing.SupportsInt) + with self.assertRaisesRegex(TypeError, non_callable_members_illegal): + issubclass(C, PNonCall) - # TODO: RUSTPYTHON - @unittest.expectedFailure - def test_supports_float(self): - self.assertIsSubclass(float, typing.SupportsFloat) - self.assertNotIsSubclass(str, typing.SupportsFloat) + self.assertIsInstance(C(), PNonCall) - # TODO: RUSTPYTHON - @unittest.expectedFailure - def test_supports_complex(self): + # check that non-protocol subclasses are not affected + class D(PNonCall): ... - # Note: complex itself doesn't have __complex__. - class C: - def __complex__(self): - return 0j + self.assertNotIsSubclass(C, D) + self.assertNotIsInstance(C(), D) + D.register(C) + self.assertIsSubclass(C, D) + self.assertIsInstance(C(), D) - self.assertIsSubclass(C, typing.SupportsComplex) - self.assertNotIsSubclass(str, typing.SupportsComplex) + with self.assertRaisesRegex(TypeError, non_callable_members_illegal): + issubclass(D, PNonCall) # TODO: RUSTPYTHON @unittest.expectedFailure - def test_supports_bytes(self): + def test_no_weird_caching_with_issubclass_after_isinstance(self): + @runtime_checkable + class Spam(Protocol): + x: int - # Note: bytes itself doesn't have __bytes__. - class B: - def __bytes__(self): - return b'' + class Eggs: + def __init__(self) -> None: + self.x = 42 - self.assertIsSubclass(B, typing.SupportsBytes) - self.assertNotIsSubclass(str, typing.SupportsBytes) + self.assertIsInstance(Eggs(), Spam) - # TODO: RUSTPYTHON - @unittest.expectedFailure - def test_supports_abs(self): - self.assertIsSubclass(float, typing.SupportsAbs) - self.assertIsSubclass(int, typing.SupportsAbs) - self.assertNotIsSubclass(str, typing.SupportsAbs) + # gh-104555: If we didn't override ABCMeta.__subclasscheck__ in _ProtocolMeta, + # TypeError wouldn't be raised here, + # as the cached result of the isinstance() check immediately above + # would mean the issubclass() call would short-circuit + # before we got to the "raise TypeError" line + with self.assertRaisesRegex( + TypeError, + "Protocols with non-method members don't support issubclass()" + ): + issubclass(Eggs, Spam) # TODO: RUSTPYTHON @unittest.expectedFailure - def test_supports_round(self): - issubclass(float, typing.SupportsRound) - self.assertIsSubclass(float, typing.SupportsRound) - self.assertIsSubclass(int, typing.SupportsRound) - self.assertNotIsSubclass(str, typing.SupportsRound) + def test_no_weird_caching_with_issubclass_after_isinstance_2(self): + @runtime_checkable + class Spam(Protocol): + x: int - def test_reversible(self): - self.assertIsSubclass(list, typing.Reversible) - self.assertNotIsSubclass(int, typing.Reversible) + class Eggs: ... - # TODO: RUSTPYTHON - @unittest.expectedFailure - def test_supports_index(self): - self.assertIsSubclass(int, typing.SupportsIndex) - self.assertNotIsSubclass(str, typing.SupportsIndex) + self.assertNotIsInstance(Eggs(), Spam) - # TODO: RUSTPYTHON - @unittest.expectedFailure - def test_bundled_protocol_instance_works(self): - self.assertIsInstance(0, typing.SupportsAbs) - class C1(typing.SupportsInt): - def __int__(self) -> int: - return 42 - class C2(C1): - pass - c = C2() - self.assertIsInstance(c, C1) + # gh-104555: If we didn't override ABCMeta.__subclasscheck__ in _ProtocolMeta, + # TypeError wouldn't be raised here, + # as the cached result of the isinstance() check immediately above + # would mean the issubclass() call would short-circuit + # before we got to the "raise TypeError" line + with self.assertRaisesRegex( + TypeError, + "Protocols with non-method members don't support issubclass()" + ): + issubclass(Eggs, Spam) # TODO: RUSTPYTHON @unittest.expectedFailure - def test_collections_protocols_allowed(self): + def test_no_weird_caching_with_issubclass_after_isinstance_3(self): @runtime_checkable - class Custom(collections.abc.Iterable, Protocol): - def close(self): ... - - class A: pass - class B: - def __iter__(self): - return [] - def close(self): - return 0 - - self.assertIsSubclass(B, Custom) - self.assertNotIsSubclass(A, Custom) + class Spam(Protocol): + x: int - def test_builtin_protocol_allowlist(self): - with self.assertRaises(TypeError): - class CustomProtocol(TestCase, Protocol): - pass + class Eggs: + def __getattr__(self, attr): + if attr == "x": + return 42 + raise AttributeError(attr) - class CustomContextManager(typing.ContextManager, Protocol): - pass + self.assertNotIsInstance(Eggs(), Spam) - def test_non_runtime_protocol_isinstance_check(self): - class P(Protocol): - x: int + # gh-104555: If we didn't override ABCMeta.__subclasscheck__ in _ProtocolMeta, + # TypeError wouldn't be raised here, + # as the cached result of the isinstance() check immediately above + # would mean the issubclass() call would short-circuit + # before we got to the "raise TypeError" line + with self.assertRaisesRegex( + TypeError, + "Protocols with non-method members don't support issubclass()" + ): + issubclass(Eggs, Spam) - with self.assertRaisesRegex(TypeError, "@runtime_checkable"): - isinstance(1, P) + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_no_weird_caching_with_issubclass_after_isinstance_pep695(self): + # @runtime_checkable + # class Spam[T](Protocol): + # x: T - def test_super_call_init(self): - class P(Protocol): - x: int + class Eggs[T]: + def __init__(self, x: T) -> None: + self.x = x - class Foo(P): - def __init__(self): - super().__init__() + self.assertIsInstance(Eggs(42), Spam) - Foo() # Previously triggered RecursionError + # gh-104555: If we didn't override ABCMeta.__subclasscheck__ in _ProtocolMeta, + # TypeError wouldn't be raised here, + # as the cached result of the isinstance() check immediately above + # would mean the issubclass() call would short-circuit + # before we got to the "raise TypeError" line + with self.assertRaisesRegex( + TypeError, + "Protocols with non-method members don't support issubclass()" + ): + issubclass(Eggs, Spam) + + # FIXME(arihant2math): start more porting from test_protocols_isinstance class GenericTests(BaseTestCase): + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_basics(self): X = SimpleMapping[str, Any] self.assertEqual(X.__parameters__, ()) @@ -1760,6 +3614,8 @@ def test_basics(self): T = TypeVar("T") self.assertEqual(List[list[T] | float].__parameters__, (T,)) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_generic_errors(self): T = TypeVar('T') S = TypeVar('S') @@ -1778,8 +3634,33 @@ class NewGeneric(Generic): ... with self.assertRaises(TypeError): class MyGeneric(Generic[T], Generic[S]): ... with self.assertRaises(TypeError): - class MyGeneric(List[T], Generic[S]): ... + class MyGeneric2(List[T], Generic[S]): ... + with self.assertRaises(TypeError): + Generic[()] + class D(Generic[T]): pass + with self.assertRaises(TypeError): + D[()] + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_generic_subclass_checks(self): + for typ in [list[int], List[int], + tuple[int, str], Tuple[int, str], + typing.Callable[..., None], + collections.abc.Callable[..., None]]: + with self.subTest(typ=typ): + self.assertRaises(TypeError, issubclass, typ, object) + self.assertRaises(TypeError, issubclass, typ, type) + self.assertRaises(TypeError, issubclass, typ, typ) + self.assertRaises(TypeError, issubclass, object, typ) + + # isinstance is fine: + self.assertTrue(isinstance(typ, object)) + # but, not when the right arg is also a generic: + self.assertRaises(TypeError, isinstance, typ, typ) + + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_init(self): T = TypeVar('T') S = TypeVar('S') @@ -1814,6 +3695,8 @@ def test_repr(self): self.assertEqual(repr(MySimpleMapping), f"") + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_chain_repr(self): T = TypeVar('T') S = TypeVar('S') @@ -1838,6 +3721,8 @@ class C(Generic[T]): self.assertTrue(str(Z).endswith( '.C[typing.Tuple[str, int]]')) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_new_repr(self): T = TypeVar('T') U = TypeVar('U', covariant=True) @@ -1849,6 +3734,8 @@ def test_new_repr(self): self.assertEqual(repr(List[S][T][int]), 'typing.List[int]') self.assertEqual(repr(List[int]), 'typing.List[int]') + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_new_repr_complex(self): T = TypeVar('T') TS = TypeVar('TS') @@ -1861,6 +3748,8 @@ def test_new_repr_complex(self): 'typing.List[typing.Tuple[typing.List[int], typing.List[int]]]' ) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_new_repr_bare(self): T = TypeVar('T') self.assertEqual(repr(Generic[T]), 'typing.Generic[~T]') @@ -1886,6 +3775,20 @@ class C(B[int]): c.bar = 'abc' self.assertEqual(c.__dict__, {'bar': 'abc'}) + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_setattr_exceptions(self): + class Immutable[T]: + def __setattr__(self, key, value): + raise RuntimeError("immutable") + + # gh-115165: This used to cause RuntimeError to be raised + # when we tried to set `__orig_class__` on the `Immutable` instance + # returned by the `Immutable[int]()` call + self.assertIsInstance(Immutable[int](), Immutable) + + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_subscripted_generics_as_proxies(self): T = TypeVar('T') class C(Generic[T]): @@ -1959,6 +3862,8 @@ def test_orig_bases(self): class C(typing.Dict[str, T]): ... self.assertEqual(C.__orig_bases__, (typing.Dict[str, T],)) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_naive_runtime_checks(self): def naive_dict_check(obj, tp): # Check if a dictionary conforms to Dict type @@ -1995,6 +3900,8 @@ class C(List[int]): ... self.assertTrue(naive_list_base_check([1, 2, 3], C)) self.assertFalse(naive_list_base_check(['a', 'b'], C)) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_multi_subscr_base(self): T = TypeVar('T') U = TypeVar('U') @@ -2012,6 +3919,8 @@ class D(C, List[T][U][V]): ... self.assertEqual(C.__orig_bases__, (List[T][U][V],)) self.assertEqual(D.__orig_bases__, (C, List[T][U][V])) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_subscript_meta(self): T = TypeVar('T') class Meta(type): ... @@ -2019,6 +3928,8 @@ class Meta(type): ... self.assertEqual(Union[T, int][Meta], Union[Meta, int]) self.assertEqual(Callable[..., Meta].__args__, (Ellipsis, Meta)) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_generic_hashes(self): class A(Generic[T]): ... @@ -2054,14 +3965,15 @@ class A(Generic[T]): self.assertNotEqual(typing.FrozenSet[A[str]], typing.FrozenSet[mod_generics_cache.B.A[str]]) - if sys.version_info[:2] > (3, 2): - self.assertTrue(repr(Tuple[A[str]]).endswith('.A[str]]')) - self.assertTrue(repr(Tuple[B.A[str]]).endswith('.B.A[str]]')) - self.assertTrue(repr(Tuple[mod_generics_cache.A[str]]) - .endswith('mod_generics_cache.A[str]]')) - self.assertTrue(repr(Tuple[mod_generics_cache.B.A[str]]) - .endswith('mod_generics_cache.B.A[str]]')) + self.assertTrue(repr(Tuple[A[str]]).endswith('.A[str]]')) + self.assertTrue(repr(Tuple[B.A[str]]).endswith('.B.A[str]]')) + self.assertTrue(repr(Tuple[mod_generics_cache.A[str]]) + .endswith('mod_generics_cache.A[str]]')) + self.assertTrue(repr(Tuple[mod_generics_cache.B.A[str]]) + .endswith('mod_generics_cache.B.A[str]]')) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_extended_generic_rules_eq(self): T = TypeVar('T') U = TypeVar('U') @@ -2075,12 +3987,11 @@ def test_extended_generic_rules_eq(self): class Base: ... class Derived(Base): ... self.assertEqual(Union[T, Base][Union[Base, Derived]], Union[Base, Derived]) - with self.assertRaises(TypeError): - Union[T, int][1] - self.assertEqual(Callable[[T], T][KT], Callable[[KT], KT]) self.assertEqual(Callable[..., List[T]][int], Callable[..., List[int]]) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_extended_generic_rules_repr(self): T = TypeVar('T') self.assertEqual(repr(Union[Tuple, Callable]).replace('typing.', ''), @@ -2092,32 +4003,169 @@ def test_extended_generic_rules_repr(self): self.assertEqual(repr(Callable[[], List[T]][int]).replace('typing.', ''), 'Callable[[], List[int]]') - def test_generic_forward_ref(self): - def foobar(x: List[List['CC']]): ... - def foobar2(x: list[list[ForwardRef('CC')]]): ... - def foobar3(x: list[ForwardRef('CC | int')] | int): ... - class CC: ... + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_generic_forward_ref(self): + def foobar(x: List[List['CC']]): ... + def foobar2(x: list[list[ForwardRef('CC')]]): ... + def foobar3(x: list[ForwardRef('CC | int')] | int): ... + class CC: ... + self.assertEqual( + get_type_hints(foobar, globals(), locals()), + {'x': List[List[CC]]} + ) + self.assertEqual( + get_type_hints(foobar2, globals(), locals()), + {'x': list[list[CC]]} + ) + self.assertEqual( + get_type_hints(foobar3, globals(), locals()), + {'x': list[CC | int] | int} + ) + + T = TypeVar('T') + AT = Tuple[T, ...] + def barfoo(x: AT): ... + self.assertIs(get_type_hints(barfoo, globals(), locals())['x'], AT) + CT = Callable[..., List[T]] + def barfoo2(x: CT): ... + self.assertIs(get_type_hints(barfoo2, globals(), locals())['x'], CT) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_generic_pep585_forward_ref(self): + # See https://bugs.python.org/issue41370 + + class C1: + a: list['C1'] + self.assertEqual( + get_type_hints(C1, globals(), locals()), + {'a': list[C1]} + ) + + class C2: + a: dict['C1', list[List[list['C2']]]] + self.assertEqual( + get_type_hints(C2, globals(), locals()), + {'a': dict[C1, list[List[list[C2]]]]} + ) + + # Test stringified annotations + scope = {} + exec(textwrap.dedent(''' + from __future__ import annotations + class C3: + a: List[list["C2"]] + '''), scope) + C3 = scope['C3'] + self.assertEqual(C3.__annotations__['a'], "List[list['C2']]") + self.assertEqual( + get_type_hints(C3, globals(), locals()), + {'a': List[list[C2]]} + ) + + # Test recursive types + X = list["X"] + def f(x: X): ... + self.assertEqual( + get_type_hints(f, globals(), locals()), + {'x': list[list[ForwardRef('X')]]} + ) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_pep695_generic_class_with_future_annotations(self): + original_globals = dict(ann_module695.__dict__) + + hints_for_A = get_type_hints(ann_module695.A) + A_type_params = ann_module695.A.__type_params__ + self.assertIs(hints_for_A["x"], A_type_params[0]) + self.assertEqual(hints_for_A["y"].__args__[0], Unpack[A_type_params[1]]) + self.assertIs(hints_for_A["z"].__args__[0], A_type_params[2]) + + # should not have changed as a result of the get_type_hints() calls! + self.assertEqual(ann_module695.__dict__, original_globals) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_pep695_generic_class_with_future_annotations_and_local_shadowing(self): + hints_for_B = get_type_hints(ann_module695.B) + self.assertEqual(hints_for_B, {"x": int, "y": str, "z": bytes}) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_pep695_generic_class_with_future_annotations_name_clash_with_global_vars(self): + hints_for_C = get_type_hints(ann_module695.C) + self.assertEqual( + set(hints_for_C.values()), + set(ann_module695.C.__type_params__) + ) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_pep_695_generic_function_with_future_annotations(self): + hints_for_generic_function = get_type_hints(ann_module695.generic_function) + func_t_params = ann_module695.generic_function.__type_params__ + self.assertEqual( + hints_for_generic_function.keys(), {"x", "y", "z", "zz", "return"} + ) + self.assertIs(hints_for_generic_function["x"], func_t_params[0]) + self.assertEqual(hints_for_generic_function["y"], Unpack[func_t_params[1]]) + self.assertIs(hints_for_generic_function["z"].__origin__, func_t_params[2]) + self.assertIs(hints_for_generic_function["zz"].__origin__, func_t_params[2]) + + def test_pep_695_generic_function_with_future_annotations_name_clash_with_global_vars(self): + self.assertEqual( + set(get_type_hints(ann_module695.generic_function_2).values()), + set(ann_module695.generic_function_2.__type_params__) + ) + + def test_pep_695_generic_method_with_future_annotations(self): + hints_for_generic_method = get_type_hints(ann_module695.D.generic_method) + params = { + param.__name__: param + for param in ann_module695.D.generic_method.__type_params__ + } + self.assertEqual( + hints_for_generic_method, + {"x": params["Foo"], "y": params["Bar"], "return": types.NoneType} + ) + + def test_pep_695_generic_method_with_future_annotations_name_clash_with_global_vars(self): + self.assertEqual( + set(get_type_hints(ann_module695.D.generic_method_2).values()), + set(ann_module695.D.generic_method_2.__type_params__) + ) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_pep_695_generics_with_future_annotations_nested_in_function(self): + results = ann_module695.nested() + self.assertEqual( - get_type_hints(foobar, globals(), locals()), - {'x': List[List[CC]]} + set(results.hints_for_E.values()), + set(results.E.__type_params__) ) self.assertEqual( - get_type_hints(foobar2, globals(), locals()), - {'x': list[list[CC]]} + set(results.hints_for_E_meth.values()), + set(results.E.generic_method.__type_params__) + ) + self.assertNotEqual( + set(results.hints_for_E_meth.values()), + set(results.E.__type_params__) ) self.assertEqual( - get_type_hints(foobar3, globals(), locals()), - {'x': list[CC | int] | int} + set(results.hints_for_E_meth.values()).intersection(results.E.__type_params__), + set() ) - T = TypeVar('T') - AT = Tuple[T, ...] - def barfoo(x: AT): ... - self.assertIs(get_type_hints(barfoo, globals(), locals())['x'], AT) - CT = Callable[..., List[T]] - def barfoo2(x: CT): ... - self.assertIs(get_type_hints(barfoo2, globals(), locals())['x'], CT) + self.assertEqual( + set(results.hints_for_generic_func.values()), + set(results.generic_func.__type_params__) + ) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_extended_generic_rules_subclassing(self): class T1(Tuple[T, KT]): ... class T2(Tuple[T, ...]): ... @@ -2152,11 +4200,11 @@ def test_fail_with_bare_union(self): List[Union] with self.assertRaises(TypeError): Tuple[Optional] - with self.assertRaises(TypeError): - ClassVar[ClassVar] with self.assertRaises(TypeError): List[ClassVar[int]] + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_fail_with_bare_generic(self): T = TypeVar('T') with self.assertRaises(TypeError): @@ -2179,24 +4227,29 @@ class MyDict(typing.Dict[T, T]): ... class MyDef(typing.DefaultDict[str, T]): ... self.assertIs(MyDef[int]().__class__, MyDef) self.assertEqual(MyDef[int]().__orig_class__, MyDef[int]) - # ChainMap was added in 3.3 - if sys.version_info >= (3, 3): - class MyChain(typing.ChainMap[str, T]): ... - self.assertIs(MyChain[int]().__class__, MyChain) - self.assertEqual(MyChain[int]().__orig_class__, MyChain[int]) + class MyChain(typing.ChainMap[str, T]): ... + self.assertIs(MyChain[int]().__class__, MyChain) + self.assertEqual(MyChain[int]().__orig_class__, MyChain[int]) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_all_repr_eq_any(self): objs = (getattr(typing, el) for el in typing.__all__) for obj in objs: self.assertNotEqual(repr(obj), '') self.assertEqual(obj, obj) - if getattr(obj, '__parameters__', None) and len(obj.__parameters__) == 1: + if (getattr(obj, '__parameters__', None) + and not isinstance(obj, typing.TypeVar) + and isinstance(obj.__parameters__, tuple) + and len(obj.__parameters__) == 1): self.assertEqual(obj[Any].__args__, (Any,)) if isinstance(obj, type): for base in obj.__mro__: self.assertNotEqual(repr(base), '') self.assertEqual(base, base) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_pickle(self): global C # pickle wants to reference the class by name T = TypeVar('T') @@ -2217,7 +4270,8 @@ class C(B[int]): self.assertEqual(x.bar, 'abc') self.assertEqual(x.__dict__, {'foo': 42, 'bar': 'abc'}) samples = [Any, Union, Tuple, Callable, ClassVar, - Union[int, str], ClassVar[List], Tuple[int, ...], Callable[[str], bytes], + Union[int, str], ClassVar[List], Tuple[int, ...], Tuple[()], + Callable[[str], bytes], typing.DefaultDict, typing.FrozenSet[int]] for s in samples: for proto in range(pickle.HIGHEST_PROTOCOL + 1): @@ -2232,10 +4286,25 @@ class C(B[int]): x = pickle.loads(z) self.assertEqual(s, x) + # Test ParamSpec args and kwargs + global PP + PP = ParamSpec('PP') + for thing in [PP.args, PP.kwargs]: + for proto in range(pickle.HIGHEST_PROTOCOL + 1): + with self.subTest(thing=thing, proto=proto): + self.assertEqual( + pickle.loads(pickle.dumps(thing, proto)), + thing, + ) + del PP + + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_copy_and_deepcopy(self): T = TypeVar('T') class Node(Generic[T]): ... - things = [Union[T, int], Tuple[T, int], Callable[..., T], Callable[[int], int], + things = [Union[T, int], Tuple[T, int], Tuple[()], + Callable[..., T], Callable[[int], int], Tuple[Any, Any], Node[T], Node[int], Node[Any], typing.Iterable[T], typing.Iterable[Any], typing.Iterable[int], typing.Dict[int, str], typing.Dict[T, Any], ClassVar[int], ClassVar[List[T]], Tuple['T', 'T'], @@ -2244,25 +4313,35 @@ class Node(Generic[T]): ... self.assertEqual(t, copy(t)) self.assertEqual(t, deepcopy(t)) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_immutability_by_copy_and_pickle(self): # Special forms like Union, Any, etc., generic aliases to containers like List, # Mapping, etc., and type variabcles are considered immutable by copy and pickle. - global TP, TPB, TPV # for pickle + global TP, TPB, TPV, PP # for pickle TP = TypeVar('TP') TPB = TypeVar('TPB', bound=int) TPV = TypeVar('TPV', bytes, str) - for X in [TP, TPB, TPV, List, typing.Mapping, ClassVar, typing.Iterable, + PP = ParamSpec('PP') + for X in [TP, TPB, TPV, PP, + List, typing.Mapping, ClassVar, typing.Iterable, Union, Any, Tuple, Callable]: - self.assertIs(copy(X), X) - self.assertIs(deepcopy(X), X) - self.assertIs(pickle.loads(pickle.dumps(X)), X) + with self.subTest(thing=X): + self.assertIs(copy(X), X) + self.assertIs(deepcopy(X), X) + for proto in range(pickle.HIGHEST_PROTOCOL + 1): + self.assertIs(pickle.loads(pickle.dumps(X, proto)), X) + del TP, TPB, TPV, PP + # Check that local type variables are copyable. TL = TypeVar('TL') TLB = TypeVar('TLB', bound=int) TLV = TypeVar('TLV', bytes, str) - for X in [TL, TLB, TLV]: - self.assertIs(copy(X), X) - self.assertIs(deepcopy(X), X) + PL = ParamSpec('PL') + for X in [TL, TLB, TLV, PL]: + with self.subTest(thing=X): + self.assertIs(copy(X), X) + self.assertIs(deepcopy(X), X) def test_copy_generic_instances(self): T = TypeVar('T') @@ -2292,7 +4371,7 @@ def test_weakref_all(self): T = TypeVar('T') things = [Any, Union[T, int], Callable[..., T], Tuple[Any, Any], Optional[List[int]], typing.Mapping[int, str], - typing.re.Match[bytes], typing.Iterable['whatever']] + typing.Match[bytes], typing.Iterable['whatever']] for t in things: self.assertEqual(weakref.ref(t)(), t) @@ -2334,6 +4413,8 @@ class D(Generic[T]): with self.assertRaises(AttributeError): d_int.foobar = 'no' + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_errors(self): with self.assertRaises(TypeError): B = SimpleMapping[XK, Any] @@ -2359,6 +4440,53 @@ class Y(C[int]): self.assertEqual(Y.__qualname__, 'GenericTests.test_repr_2..Y') + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_repr_3(self): + T = TypeVar('T') + T1 = TypeVar('T1') + P = ParamSpec('P') + P2 = ParamSpec('P2') + Ts = TypeVarTuple('Ts') + + class MyCallable(Generic[P, T]): + pass + + class DoubleSpec(Generic[P, P2, T]): + pass + + class TsP(Generic[*Ts, P]): + pass + + object_to_expected_repr = { + MyCallable[P, T]: "MyCallable[~P, ~T]", + MyCallable[Concatenate[T1, P], T]: "MyCallable[typing.Concatenate[~T1, ~P], ~T]", + MyCallable[[], bool]: "MyCallable[[], bool]", + MyCallable[[int], bool]: "MyCallable[[int], bool]", + MyCallable[[int, str], bool]: "MyCallable[[int, str], bool]", + MyCallable[[int, list[int]], bool]: "MyCallable[[int, list[int]], bool]", + MyCallable[Concatenate[*Ts, P], T]: "MyCallable[typing.Concatenate[typing.Unpack[Ts], ~P], ~T]", + + DoubleSpec[P2, P, T]: "DoubleSpec[~P2, ~P, ~T]", + DoubleSpec[[int], [str], bool]: "DoubleSpec[[int], [str], bool]", + DoubleSpec[[int, int], [str, str], bool]: "DoubleSpec[[int, int], [str, str], bool]", + + TsP[*Ts, P]: "TsP[typing.Unpack[Ts], ~P]", + TsP[int, str, list[int], []]: "TsP[int, str, list[int], []]", + TsP[int, [str, list[int]]]: "TsP[int, [str, list[int]]]", + + # These lines are just too long to fit: + MyCallable[Concatenate[*Ts, P], int][int, str, [bool, float]]: + "MyCallable[[int, str, bool, float], int]", + } + + for obj, expected_repr in object_to_expected_repr.items(): + with self.subTest(obj=obj, expected_repr=expected_repr): + self.assertRegex( + repr(obj), + fr"^{re.escape(MyCallable.__module__)}.*\.{re.escape(expected_repr)}$", + ) + def test_eq_1(self): self.assertEqual(Generic, Generic) self.assertEqual(Generic[T], Generic[T]) @@ -2377,6 +4505,8 @@ class B(Generic[T]): self.assertEqual(A[T], A[T]) self.assertNotEqual(A[T], B[T]) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_multiple_inheritance(self): class A(Generic[T, VT]): @@ -2396,6 +4526,77 @@ class B(Generic[S]): ... class C(List[int], B): ... self.assertEqual(C.__mro__, (C, list, B, Generic, object)) + def test_multiple_inheritance_non_type_with___mro_entries__(self): + class GoodEntries: + def __mro_entries__(self, bases): + return (object,) + + class A(List[int], GoodEntries()): ... + + self.assertEqual(A.__mro__, (A, list, Generic, object)) + + def test_multiple_inheritance_non_type_without___mro_entries__(self): + # Error should be from the type machinery, not from typing.py + with self.assertRaisesRegex(TypeError, r"^bases must be types"): + class A(List[int], object()): ... + + def test_multiple_inheritance_non_type_bad___mro_entries__(self): + class BadEntries: + def __mro_entries__(self, bases): + return None + + # Error should be from the type machinery, not from typing.py + with self.assertRaisesRegex( + TypeError, + r"^__mro_entries__ must return a tuple", + ): + class A(List[int], BadEntries()): ... + + def test_multiple_inheritance___mro_entries___returns_non_type(self): + class BadEntries: + def __mro_entries__(self, bases): + return (object(),) + + # Error should be from the type machinery, not from typing.py + with self.assertRaisesRegex( + TypeError, + r"^bases must be types", + ): + class A(List[int], BadEntries()): ... + + def test_multiple_inheritance_with_genericalias(self): + class A(typing.Sized, list[int]): ... + + self.assertEqual( + A.__mro__, + (A, collections.abc.Sized, Generic, list, object), + ) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_multiple_inheritance_with_genericalias_2(self): + T = TypeVar("T") + + class BaseSeq(typing.Sequence[T]): ... + class MySeq(List[T], BaseSeq[T]): ... + + self.assertEqual( + MySeq.__mro__, + ( + MySeq, + list, + BaseSeq, + collections.abc.Sequence, + collections.abc.Reversible, + collections.abc.Collection, + collections.abc.Sized, + collections.abc.Iterable, + collections.abc.Container, + Generic, + object, + ), + ) + def test_init_subclass_super_called(self): class FinalException(Exception): pass @@ -2412,7 +4613,7 @@ class Test(Generic[T], Final): class Subclass(Test): pass with self.assertRaises(FinalException): - class Subclass(Test[int]): + class Subclass2(Test[int]): pass def test_nested(self): @@ -2469,6 +4670,8 @@ def foo(x: T): foo(42) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_implicit_any(self): T = TypeVar('T') @@ -2480,11 +4683,11 @@ class D(C): self.assertEqual(D.__parameters__, ()) - with self.assertRaises(Exception): + with self.assertRaises(TypeError): D[int] - with self.assertRaises(Exception): + with self.assertRaises(TypeError): D[Any] - with self.assertRaises(Exception): + with self.assertRaises(TypeError): D[T] def test_new_with_args(self): @@ -2567,6 +4770,7 @@ def test_subclass_special_form(self): Literal[1, 2], Concatenate[int, ParamSpec("P")], TypeGuard[int], + TypeIs[range], ): with self.subTest(msg=obj): with self.assertRaisesRegex( @@ -2575,11 +4779,70 @@ def test_subclass_special_form(self): class Foo(obj): pass + def test_complex_subclasses(self): + T_co = TypeVar("T_co", covariant=True) + + class Base(Generic[T_co]): + ... + + T = TypeVar("T") + + # see gh-94607: this fails in that bug + class Sub(Base, Generic[T]): + ... + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_parameter_detection(self): + self.assertEqual(List[T].__parameters__, (T,)) + self.assertEqual(List[List[T]].__parameters__, (T,)) + class A: + __parameters__ = (T,) + # Bare classes should be skipped + for a in (List, list): + for b in (A, int, TypeVar, TypeVarTuple, ParamSpec, types.GenericAlias, types.UnionType): + with self.subTest(generic=a, sub=b): + with self.assertRaisesRegex(TypeError, '.* is not a generic class'): + a[b][str] + # Duck-typing anything that looks like it has __parameters__. + # These tests are optional and failure is okay. + self.assertEqual(List[A()].__parameters__, (T,)) + # C version of GenericAlias + self.assertEqual(list[A()].__parameters__, (T,)) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_non_generic_subscript(self): + T = TypeVar('T') + class G(Generic[T]): + pass + class A: + __parameters__ = (T,) + + for s in (int, G, A, List, list, + TypeVar, TypeVarTuple, ParamSpec, + types.GenericAlias, types.UnionType): + + for t in Tuple, tuple: + with self.subTest(tuple=t, sub=s): + self.assertEqual(t[s, T][int], t[s, int]) + self.assertEqual(t[T, s][int], t[int, s]) + a = t[s] + with self.assertRaises(TypeError): + a[int] + + for c in Callable, collections.abc.Callable: + with self.subTest(callable=c, sub=s): + self.assertEqual(c[[s], T][int], c[[s], int]) + self.assertEqual(c[[T], s][int], c[[int], s]) + a = c[[s], s] + with self.assertRaises(TypeError): + a[int] + + class ClassVarTests(BaseTestCase): def test_basics(self): - with self.assertRaises(TypeError): - ClassVar[1] with self.assertRaises(TypeError): ClassVar[int, str] with self.assertRaises(TypeError): @@ -2593,11 +4856,19 @@ def test_repr(self): self.assertEqual(repr(cv), 'typing.ClassVar[%s.Employee]' % __name__) def test_cannot_subclass(self): - with self.assertRaises(TypeError): + with self.assertRaisesRegex(TypeError, CANNOT_SUBCLASS_TYPE): class C(type(ClassVar)): pass - with self.assertRaises(TypeError): - class C(type(ClassVar[int])): + with self.assertRaisesRegex(TypeError, CANNOT_SUBCLASS_TYPE): + class D(type(ClassVar[int])): + pass + with self.assertRaisesRegex(TypeError, + r'Cannot subclass typing\.ClassVar'): + class E(ClassVar): + pass + with self.assertRaisesRegex(TypeError, + r'Cannot subclass typing\.ClassVar\[int\]'): + class F(ClassVar[int]): pass def test_cannot_init(self): @@ -2614,12 +4885,11 @@ def test_no_isinstance(self): with self.assertRaises(TypeError): issubclass(int, ClassVar) + class FinalTests(BaseTestCase): def test_basics(self): Final[int] # OK - with self.assertRaises(TypeError): - Final[1] with self.assertRaises(TypeError): Final[int, str] with self.assertRaises(TypeError): @@ -2627,6 +4897,8 @@ def test_basics(self): with self.assertRaises(TypeError): Optional[Final[int]] + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_repr(self): self.assertEqual(repr(Final), 'typing.Final') cv = Final[int] @@ -2637,11 +4909,19 @@ def test_repr(self): self.assertEqual(repr(cv), 'typing.Final[tuple[int]]') def test_cannot_subclass(self): - with self.assertRaises(TypeError): + with self.assertRaisesRegex(TypeError, CANNOT_SUBCLASS_TYPE): class C(type(Final)): pass - with self.assertRaises(TypeError): - class C(type(Final[int])): + with self.assertRaisesRegex(TypeError, CANNOT_SUBCLASS_TYPE): + class D(type(Final[int])): + pass + with self.assertRaisesRegex(TypeError, + r'Cannot subclass typing\.Final'): + class E(Final): + pass + with self.assertRaisesRegex(TypeError, + r'Cannot subclass typing\.Final\[int\]'): + class F(Final[int]): pass def test_cannot_init(self): @@ -2658,10 +4938,216 @@ def test_no_isinstance(self): with self.assertRaises(TypeError): issubclass(int, Final) + +class FinalDecoratorTests(BaseTestCase): def test_final_unmodified(self): def func(x): ... self.assertIs(func, final(func)) + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_dunder_final(self): + @final + def func(): ... + @final + class Cls: ... + self.assertIs(True, func.__final__) + self.assertIs(True, Cls.__final__) + + class Wrapper: + __slots__ = ("func",) + def __init__(self, func): + self.func = func + def __call__(self, *args, **kwargs): + return self.func(*args, **kwargs) + + # Check that no error is thrown if the attribute + # is not writable. + @final + @Wrapper + def wrapped(): ... + self.assertIsInstance(wrapped, Wrapper) + self.assertIs(False, hasattr(wrapped, "__final__")) + + class Meta(type): + @property + def __final__(self): return "can't set me" + @final + class WithMeta(metaclass=Meta): ... + self.assertEqual(WithMeta.__final__, "can't set me") + + # Builtin classes throw TypeError if you try to set an + # attribute. + final(int) + self.assertIs(False, hasattr(int, "__final__")) + + # Make sure it works with common builtin decorators + class Methods: + @final + @classmethod + def clsmethod(cls): ... + + @final + @staticmethod + def stmethod(): ... + + # The other order doesn't work because property objects + # don't allow attribute assignment. + @property + @final + def prop(self): ... + + @final + @lru_cache() + def cached(self): ... + + # Use getattr_static because the descriptor returns the + # underlying function, which doesn't have __final__. + self.assertIs( + True, + inspect.getattr_static(Methods, "clsmethod").__final__ + ) + self.assertIs( + True, + inspect.getattr_static(Methods, "stmethod").__final__ + ) + self.assertIs(True, Methods.prop.fget.__final__) + self.assertIs(True, Methods.cached.__final__) + + +class OverrideDecoratorTests(BaseTestCase): + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_override(self): + class Base: + def normal_method(self): ... + @classmethod + def class_method_good_order(cls): ... + @classmethod + def class_method_bad_order(cls): ... + @staticmethod + def static_method_good_order(): ... + @staticmethod + def static_method_bad_order(): ... + + class Derived(Base): + @override + def normal_method(self): + return 42 + + @classmethod + @override + def class_method_good_order(cls): + return 42 + @override + @classmethod + def class_method_bad_order(cls): + return 42 + + @staticmethod + @override + def static_method_good_order(): + return 42 + @override + @staticmethod + def static_method_bad_order(): + return 42 + + self.assertIsSubclass(Derived, Base) + instance = Derived() + self.assertEqual(instance.normal_method(), 42) + self.assertIs(True, Derived.normal_method.__override__) + self.assertIs(True, instance.normal_method.__override__) + + self.assertEqual(Derived.class_method_good_order(), 42) + self.assertIs(True, Derived.class_method_good_order.__override__) + self.assertEqual(Derived.class_method_bad_order(), 42) + self.assertIs(False, hasattr(Derived.class_method_bad_order, "__override__")) + + self.assertEqual(Derived.static_method_good_order(), 42) + self.assertIs(True, Derived.static_method_good_order.__override__) + self.assertEqual(Derived.static_method_bad_order(), 42) + self.assertIs(False, hasattr(Derived.static_method_bad_order, "__override__")) + + # Base object is not changed: + self.assertIs(False, hasattr(Base.normal_method, "__override__")) + self.assertIs(False, hasattr(Base.class_method_good_order, "__override__")) + self.assertIs(False, hasattr(Base.class_method_bad_order, "__override__")) + self.assertIs(False, hasattr(Base.static_method_good_order, "__override__")) + self.assertIs(False, hasattr(Base.static_method_bad_order, "__override__")) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_property(self): + class Base: + @property + def correct(self) -> int: + return 1 + @property + def wrong(self) -> int: + return 1 + + class Child(Base): + @property + @override + def correct(self) -> int: + return 2 + @override + @property + def wrong(self) -> int: + return 2 + + instance = Child() + self.assertEqual(instance.correct, 2) + self.assertTrue(Child.correct.fget.__override__) + self.assertEqual(instance.wrong, 2) + self.assertFalse(hasattr(Child.wrong, "__override__")) + self.assertFalse(hasattr(Child.wrong.fset, "__override__")) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_silent_failure(self): + class CustomProp: + __slots__ = ('fget',) + def __init__(self, fget): + self.fget = fget + def __get__(self, obj, objtype=None): + return self.fget(obj) + + class WithOverride: + @override # must not fail on object with `__slots__` + @CustomProp + def some(self): + return 1 + + self.assertEqual(WithOverride.some, 1) + self.assertFalse(hasattr(WithOverride.some, "__override__")) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_multiple_decorators(self): + def with_wraps(f): # similar to `lru_cache` definition + @wraps(f) + def wrapper(*args, **kwargs): + return f(*args, **kwargs) + return wrapper + + class WithOverride: + @override + @with_wraps + def on_top(self, a: int) -> int: + return a + 1 + @with_wraps + @override + def on_bottom(self, a: int) -> int: + return a + 2 + + instance = WithOverride() + self.assertEqual(instance.on_top(1), 2) + self.assertTrue(instance.on_top.__override__) + self.assertEqual(instance.on_bottom(1), 3) + self.assertTrue(instance.on_bottom.__override__) + class CastTests(BaseTestCase): @@ -2681,8 +5167,38 @@ def test_errors(self): cast('hello', 42) -class ForwardRefTests(BaseTestCase): +class AssertTypeTests(BaseTestCase): + + def test_basics(self): + arg = 42 + self.assertIs(assert_type(arg, int), arg) + self.assertIs(assert_type(arg, str | float), arg) + self.assertIs(assert_type(arg, AnyStr), arg) + self.assertIs(assert_type(arg, None), arg) + + def test_errors(self): + # Bogus calls are not expected to fail. + arg = 42 + self.assertIs(assert_type(arg, 42), arg) + self.assertIs(assert_type(arg, 'hello'), arg) + + +# We need this to make sure that `@no_type_check` respects `__module__` attr: +from test.typinganndata import ann_module8 + +@no_type_check +class NoTypeCheck_Outer: + Inner = ann_module8.NoTypeCheck_Outer.Inner + +@no_type_check +class NoTypeCheck_WithFunction: + NoTypeCheck_function = ann_module8.NoTypeCheck_function + + +class ForwardRefTests(BaseTestCase): + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_basics(self): class Node(Generic[T]): @@ -2708,16 +5224,15 @@ def add_right(self, node: 'Node[T]' = None): t = Node[int] both_hints = get_type_hints(t.add_both, globals(), locals()) self.assertEqual(both_hints['left'], Optional[Node[T]]) - self.assertEqual(both_hints['right'], Optional[Node[T]]) - self.assertEqual(both_hints['left'], both_hints['right']) - self.assertEqual(both_hints['stuff'], Optional[int]) + self.assertEqual(both_hints['right'], Node[T]) + self.assertEqual(both_hints['stuff'], int) self.assertNotIn('blah', both_hints) left_hints = get_type_hints(t.add_left, globals(), locals()) self.assertEqual(left_hints['node'], Optional[Node[T]]) right_hints = get_type_hints(t.add_right, globals(), locals()) - self.assertEqual(right_hints['node'], Optional[Node[T]]) + self.assertEqual(right_hints['node'], Node[T]) def test_forwardref_instance_type_error(self): fr = typing.ForwardRef('int') @@ -2811,7 +5326,11 @@ def fun(x: a): def test_forward_repr(self): self.assertEqual(repr(List['int']), "typing.List[ForwardRef('int')]") + self.assertEqual(repr(List[ForwardRef('int', module='mod')]), + "typing.List[ForwardRef('int', module='mod')]") + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_union_forward(self): def foo(a: Union['T']): @@ -2826,6 +5345,8 @@ def foo(a: tuple[ForwardRef('T')] | int): self.assertEqual(get_type_hints(foo, globals(), locals()), {'a': tuple[T] | int}) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_tuple_forward(self): def foo(a: Tuple['T']): @@ -2866,11 +5387,14 @@ def fun(x: a): pass def cmp(o1, o2): return o1 == o2 - r1 = namespace1() - r2 = namespace2() - self.assertIsNot(r1, r2) - self.assertRaises(RecursionError, cmp, r1, r2) + with infinite_recursion(25): + r1 = namespace1() + r2 = namespace2() + self.assertIsNot(r1, r2) + self.assertRaises(RecursionError, cmp, r1, r2) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_union_forward_recursion(self): ValueList = List['Value'] Value = Union[str, ValueList] @@ -2919,20 +5443,28 @@ def foo(a: 'Callable[..., T]'): self.assertEqual(get_type_hints(foo, globals(), locals()), {'a': Callable[..., T]}) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_special_forms_forward(self): class C: a: Annotated['ClassVar[int]', (3, 5)] = 4 b: Annotated['Final[int]', "const"] = 4 + x: 'ClassVar' = 4 + y: 'Final' = 4 class CF: b: List['Final[int]'] = 4 self.assertEqual(get_type_hints(C, globals())['a'], ClassVar[int]) self.assertEqual(get_type_hints(C, globals())['b'], Final[int]) + self.assertEqual(get_type_hints(C, globals())['x'], ClassVar) + self.assertEqual(get_type_hints(C, globals())['y'], Final) with self.assertRaises(TypeError): get_type_hints(CF, globals()), + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_syntax_error(self): with self.assertRaises(SyntaxError): @@ -2946,13 +5478,11 @@ def foo(a: 'Node[T'): with self.assertRaises(SyntaxError): get_type_hints(foo) - def test_type_error(self): - - def foo(a: Tuple['42']): - pass - - with self.assertRaises(TypeError): - get_type_hints(foo) + def test_syntax_error_empty_string(self): + for form in [typing.List, typing.Set, typing.Type, typing.Deque]: + with self.subTest(form=form): + with self.assertRaises(SyntaxError): + form[''] def test_name_error(self): @@ -2989,9 +5519,104 @@ def meth(self, x: int): ... @no_type_check class D(C): c = C + # verify that @no_type_check never affects bases self.assertEqual(get_type_hints(C.meth), {'x': int}) + # and never child classes: + class Child(D): + def foo(self, x: int): ... + + self.assertEqual(get_type_hints(Child.foo), {'x': int}) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_no_type_check_nested_types(self): + # See https://bugs.python.org/issue46571 + class Other: + o: int + class B: # Has the same `__name__`` as `A.B` and different `__qualname__` + o: int + @no_type_check + class A: + a: int + class B: + b: int + class C: + c: int + class D: + d: int + + Other = Other + + for klass in [A, A.B, A.B.C, A.D]: + with self.subTest(klass=klass): + self.assertTrue(klass.__no_type_check__) + self.assertEqual(get_type_hints(klass), {}) + + for not_modified in [Other, B]: + with self.subTest(not_modified=not_modified): + with self.assertRaises(AttributeError): + not_modified.__no_type_check__ + self.assertNotEqual(get_type_hints(not_modified), {}) + + def test_no_type_check_class_and_static_methods(self): + @no_type_check + class Some: + @staticmethod + def st(x: int) -> int: ... + @classmethod + def cl(cls, y: int) -> int: ... + + self.assertTrue(Some.st.__no_type_check__) + self.assertEqual(get_type_hints(Some.st), {}) + self.assertTrue(Some.cl.__no_type_check__) + self.assertEqual(get_type_hints(Some.cl), {}) + + def test_no_type_check_other_module(self): + self.assertTrue(NoTypeCheck_Outer.__no_type_check__) + with self.assertRaises(AttributeError): + ann_module8.NoTypeCheck_Outer.__no_type_check__ + with self.assertRaises(AttributeError): + ann_module8.NoTypeCheck_Outer.Inner.__no_type_check__ + + self.assertTrue(NoTypeCheck_WithFunction.__no_type_check__) + with self.assertRaises(AttributeError): + ann_module8.NoTypeCheck_function.__no_type_check__ + + def test_no_type_check_foreign_functions(self): + # We should not modify this function: + def some(*args: int) -> int: + ... + + @no_type_check + class A: + some_alias = some + some_class = classmethod(some) + some_static = staticmethod(some) + + with self.assertRaises(AttributeError): + some.__no_type_check__ + self.assertEqual(get_type_hints(some), {'args': int, 'return': int}) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_no_type_check_lambda(self): + @no_type_check + class A: + # Corner case: `lambda` is both an assignment and a function: + bar: Callable[[int], int] = lambda arg: arg + + self.assertTrue(A.bar.__no_type_check__) + self.assertEqual(get_type_hints(A.bar), {}) + + def test_no_type_check_TypeError(self): + # This simply should not fail with + # `TypeError: can't set attributes of built-in/extension type 'dict'` + no_type_check(dict) + + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_no_type_check_forward_ref_as_string(self): class C: foo: typing.ClassVar[int] = 7 @@ -3006,21 +5631,15 @@ class F: for clazz in [C, D, E, F]: self.assertEqual(get_type_hints(clazz), expected_result) - def test_nested_classvar_fails_forward_ref_check(self): - class E: - foo: 'typing.ClassVar[typing.ClassVar[int]]' = 7 - class F: - foo: ClassVar['ClassVar[int]'] = 7 - - for clazz in [E, F]: - with self.assertRaises(TypeError): - get_type_hints(clazz) - def test_meta_no_type_check(self): - - @no_type_check_decorator - def magic_decorator(func): - return func + depr_msg = ( + "'typing.no_type_check_decorator' is deprecated " + "and slated for removal in Python 3.15" + ) + with self.assertWarnsRegex(DeprecationWarning, depr_msg): + @no_type_check_decorator + def magic_decorator(func): + return func self.assertEqual(magic_decorator.__name__, 'magic_decorator') @@ -3052,18 +5671,75 @@ def test_default_globals(self): hints = get_type_hints(ns['C'].foo) self.assertEqual(hints, {'a': ns['C'], 'return': ns['D']}) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_final_forward_ref(self): self.assertEqual(gth(Loop, globals())['attr'], Final[Loop]) self.assertNotEqual(gth(Loop, globals())['attr'], Final[int]) self.assertNotEqual(gth(Loop, globals())['attr'], Final) + def test_or(self): + X = ForwardRef('X') + # __or__/__ror__ itself + self.assertEqual(X | "x", Union[X, "x"]) + self.assertEqual("x" | X, Union["x", X]) + + +class InternalsTests(BaseTestCase): + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_deprecation_for_no_type_params_passed_to__evaluate(self): + with self.assertWarnsRegex( + DeprecationWarning, + ( + "Failing to pass a value to the 'type_params' parameter " + "of 'typing._eval_type' is deprecated" + ) + ) as cm: + self.assertEqual(typing._eval_type(list["int"], globals(), {}), list[int]) + + self.assertEqual(cm.filename, __file__) + + f = ForwardRef("int") + + with self.assertWarnsRegex( + DeprecationWarning, + ( + "Failing to pass a value to the 'type_params' parameter " + "of 'typing.ForwardRef._evaluate' is deprecated" + ) + ) as cm: + self.assertIs(f._evaluate(globals(), {}, recursive_guard=frozenset()), int) + + self.assertEqual(cm.filename, __file__) + + def test_collect_parameters(self): + typing = import_helper.import_fresh_module("typing") + with self.assertWarnsRegex( + DeprecationWarning, + "The private _collect_parameters function is deprecated" + ) as cm: + typing._collect_parameters + self.assertEqual(cm.filename, __file__) + + +@lru_cache() +def cached_func(x, y): + return 3 * x + y + + +class MethodHolder: + @classmethod + def clsmethod(cls): ... + @staticmethod + def stmethod(): ... + def method(self): ... + class OverloadTests(BaseTestCase): def test_overload_fails(self): - from typing import overload - - with self.assertRaises(RuntimeError): + with self.assertRaises(NotImplementedError): @overload def blah(): @@ -3072,8 +5748,6 @@ def blah(): blah() def test_overload_succeeds(self): - from typing import overload - @overload def blah(): pass @@ -3083,9 +5757,80 @@ def blah(): blah() + @cpython_only # gh-98713 + def test_overload_on_compiled_functions(self): + with patch("typing._overload_registry", + defaultdict(lambda: defaultdict(dict))): + # The registry starts out empty: + self.assertEqual(typing._overload_registry, {}) + + # This should just not fail: + overload(sum) + overload(print) + + # No overloads are recorded (but, it still has a side-effect): + self.assertEqual(typing.get_overloads(sum), []) + self.assertEqual(typing.get_overloads(print), []) + + def set_up_overloads(self): + def blah(): + pass + + overload1 = blah + overload(blah) + + def blah(): + pass + + overload2 = blah + overload(blah) + + def blah(): + pass + + return blah, [overload1, overload2] + + # Make sure we don't clear the global overload registry + @patch("typing._overload_registry", + defaultdict(lambda: defaultdict(dict))) + def test_overload_registry(self): + # The registry starts out empty + self.assertEqual(typing._overload_registry, {}) + + impl, overloads = self.set_up_overloads() + self.assertNotEqual(typing._overload_registry, {}) + self.assertEqual(list(get_overloads(impl)), overloads) + + def some_other_func(): pass + overload(some_other_func) + other_overload = some_other_func + def some_other_func(): pass + self.assertEqual(list(get_overloads(some_other_func)), [other_overload]) + # Unrelated function still has no overloads: + def not_overloaded(): pass + self.assertEqual(list(get_overloads(not_overloaded)), []) + + # Make sure that after we clear all overloads, the registry is + # completely empty. + clear_overloads() + self.assertEqual(typing._overload_registry, {}) + self.assertEqual(get_overloads(impl), []) + + # Querying a function with no overloads shouldn't change the registry. + def the_only_one(): pass + self.assertEqual(get_overloads(the_only_one), []) + self.assertEqual(typing._overload_registry, {}) + + def test_overload_registry_repeated(self): + for _ in range(2): + impl, overloads = self.set_up_overloads() + + self.assertEqual(list(get_overloads(impl)), overloads) + +from test.typinganndata import ( + ann_module, ann_module2, ann_module3, ann_module5, ann_module6, +) -ASYNCIO_TESTS = """ -import asyncio T_a = TypeVar('T_a') @@ -3118,19 +5863,7 @@ async def __aenter__(self) -> int: return 42 async def __aexit__(self, etype, eval, tb): return None -""" - -try: - exec(ASYNCIO_TESTS) -except ImportError: - ASYNCIO = False # multithreading is not enabled -else: - ASYNCIO = True - -# Definitions needed for features introduced in Python 3.6 -from test import ann_module, ann_module2, ann_module3, ann_module5, ann_module6 -from typing import AsyncContextManager class A: y: float @@ -3177,20 +5910,60 @@ class Point2D(TypedDict): x: int y: int +class Point2DGeneric(Generic[T], TypedDict): + a: T + b: T + class Bar(_typed_dict_helper.Foo, total=False): b: int +class BarGeneric(_typed_dict_helper.FooGeneric[T], total=False): + b: int + class LabelPoint2D(Point2D, Label): ... class Options(TypedDict, total=False): log_level: int log_path: str -class HasForeignBaseClass(mod_generics_cache.A): - some_xrepr: 'XRepr' - other_a: 'mod_generics_cache.A' +class TotalMovie(TypedDict): + title: str + year: NotRequired[int] + +class NontotalMovie(TypedDict, total=False): + title: Required[str] + year: int + +class ParentNontotalMovie(TypedDict, total=False): + title: Required[str] + +class ChildTotalMovie(ParentNontotalMovie): + year: NotRequired[int] + +class ParentDeeplyAnnotatedMovie(TypedDict): + title: Annotated[Annotated[Required[str], "foobar"], "another level"] + +class ChildDeeplyAnnotatedMovie(ParentDeeplyAnnotatedMovie): + year: NotRequired[Annotated[int, 2000]] -async def g_with(am: AsyncContextManager[int]): +class AnnotatedMovie(TypedDict): + title: Annotated[Required[str], "foobar"] + year: NotRequired[Annotated[int, 2000]] + +class DeeplyAnnotatedMovie(TypedDict): + title: Annotated[Annotated[Required[str], "foobar"], "another level"] + year: NotRequired[Annotated[int, 2000]] + +class WeirdlyQuotedMovie(TypedDict): + title: Annotated['Annotated[Required[str], "foobar"]', "another level"] + year: NotRequired['Annotated[int, 2000]'] + +# TODO: RUSTPYTHON +# class HasForeignBaseClass(mod_generics_cache.A): +# some_xrepr: 'XRepr' +# other_a: 'mod_generics_cache.A' + +async def g_with(am: typing.AsyncContextManager[int]): x: int async with am as x: return x @@ -3202,6 +5975,7 @@ async def g_with(am: AsyncContextManager[int]): gth = get_type_hints + class ForRefExample: @ann_module.dec def func(self: 'ForRefExample'): @@ -3240,6 +6014,8 @@ def test_get_type_hints_modules_forwardref(self): 'default_b': Optional[mod_generics_cache.B]} self.assertEqual(gth(mod_generics_cache), mgc_hints) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_get_type_hints_classes(self): self.assertEqual(gth(ann_module.C), # gth will find the right globalns {'y': Optional[ann_module.C]}) @@ -3264,6 +6040,8 @@ def test_get_type_hints_classes(self): 'my_inner_a2': mod_generics_cache.B.A, 'my_outer_a': mod_generics_cache.A}) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_get_type_hints_classes_no_implicit_optional(self): class WithNoneDefault: field: int = None # most type-checkers won't be happy with it @@ -3308,6 +6086,8 @@ class B: ... b.__annotations__ = {'x': 'A'} self.assertEqual(gth(b, locals()), {'x': A}) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_get_type_hints_ClassVar(self): self.assertEqual(gth(ann_module2.CV, ann_module2.__dict__), {'var': typing.ClassVar[ann_module2.CV]}) @@ -3323,6 +6103,8 @@ def test_get_type_hints_wrapped_decoratored_func(self): self.assertEqual(gth(ForRefExample.func), expects) self.assertEqual(gth(ForRefExample.nested), expects) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_get_type_hints_annotated(self): def foobar(x: List['X']): ... X = Annotated[int, (1, 10)] @@ -3349,7 +6131,7 @@ def foobar(x: list[ForwardRef('X')]): ... BA = Tuple[Annotated[T, (1, 0)], ...] def barfoo(x: BA): ... self.assertEqual(get_type_hints(barfoo, globals(), locals())['x'], Tuple[T, ...]) - self.assertIs( + self.assertEqual( get_type_hints(barfoo, globals(), locals(), include_extras=True)['x'], BA ) @@ -3357,7 +6139,7 @@ def barfoo(x: BA): ... BA = tuple[Annotated[T, (1, 0)], ...] def barfoo(x: BA): ... self.assertEqual(get_type_hints(barfoo, globals(), locals())['x'], tuple[T, ...]) - self.assertIs( + self.assertEqual( get_type_hints(barfoo, globals(), locals(), include_extras=True)['x'], BA ) @@ -3386,6 +6168,8 @@ def barfoo4(x: BA3): ... {"x": typing.Annotated[int | float, "const"]} ) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_get_type_hints_annotated_in_union(self): # bpo-46603 def with_union(x: int | list[Annotated[str, 'meta']]): ... @@ -3395,6 +6179,8 @@ def with_union(x: int | list[Annotated[str, 'meta']]): ... {'x': int | list[Annotated[str, 'meta']]}, ) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_get_type_hints_annotated_refs(self): Const = Annotated[T, "Const"] @@ -3422,6 +6208,20 @@ def __iand__(self, other: Const["MySet[T]"]) -> "MySet[T]": {'other': MySet[T], 'return': MySet[T]} ) + def test_get_type_hints_annotated_with_none_default(self): + # See: https://bugs.python.org/issue46195 + def annotated_with_none_default(x: Annotated[int, 'data'] = None): ... + self.assertEqual( + get_type_hints(annotated_with_none_default), + {'x': int}, + ) + self.assertEqual( + get_type_hints(annotated_with_none_default, include_extras=True), + {'x': Annotated[int, 'data']}, + ) + + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_get_type_hints_classes_str_annotations(self): class Foo: y = str @@ -3437,6 +6237,8 @@ class BadModule: self.assertNotIn('bad', sys.modules) self.assertEqual(get_type_hints(BadModule), {}) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_get_type_hints_annotated_bad_module(self): # See https://bugs.python.org/issue44468 class BadBase: @@ -3447,10 +6249,88 @@ class BadType(BadBase): self.assertNotIn('bad', sys.modules) self.assertEqual(get_type_hints(BadType), {'foo': tuple, 'bar': list}) + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_forward_ref_and_final(self): + # https://bugs.python.org/issue45166 + hints = get_type_hints(ann_module5) + self.assertEqual(hints, {'name': Final[str]}) + + hints = get_type_hints(ann_module5.MyClass) + self.assertEqual(hints, {'value': Final}) + + def test_top_level_class_var(self): + # https://bugs.python.org/issue45166 + with self.assertRaisesRegex( + TypeError, + r'typing.ClassVar\[int\] is not valid as type argument', + ): + get_type_hints(ann_module6) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_get_type_hints_typeddict(self): + self.assertEqual(get_type_hints(TotalMovie), {'title': str, 'year': int}) + self.assertEqual(get_type_hints(TotalMovie, include_extras=True), { + 'title': str, + 'year': NotRequired[int], + }) + + self.assertEqual(get_type_hints(AnnotatedMovie), {'title': str, 'year': int}) + self.assertEqual(get_type_hints(AnnotatedMovie, include_extras=True), { + 'title': Annotated[Required[str], "foobar"], + 'year': NotRequired[Annotated[int, 2000]], + }) + + self.assertEqual(get_type_hints(DeeplyAnnotatedMovie), {'title': str, 'year': int}) + self.assertEqual(get_type_hints(DeeplyAnnotatedMovie, include_extras=True), { + 'title': Annotated[Required[str], "foobar", "another level"], + 'year': NotRequired[Annotated[int, 2000]], + }) + + self.assertEqual(get_type_hints(WeirdlyQuotedMovie), {'title': str, 'year': int}) + self.assertEqual(get_type_hints(WeirdlyQuotedMovie, include_extras=True), { + 'title': Annotated[Required[str], "foobar", "another level"], + 'year': NotRequired[Annotated[int, 2000]], + }) + + self.assertEqual(get_type_hints(_typed_dict_helper.VeryAnnotated), {'a': int}) + self.assertEqual(get_type_hints(_typed_dict_helper.VeryAnnotated, include_extras=True), { + 'a': Annotated[Required[int], "a", "b", "c"] + }) + + self.assertEqual(get_type_hints(ChildTotalMovie), {"title": str, "year": int}) + self.assertEqual(get_type_hints(ChildTotalMovie, include_extras=True), { + "title": Required[str], "year": NotRequired[int] + }) + + self.assertEqual(get_type_hints(ChildDeeplyAnnotatedMovie), {"title": str, "year": int}) + self.assertEqual(get_type_hints(ChildDeeplyAnnotatedMovie, include_extras=True), { + "title": Annotated[Required[str], "foobar", "another level"], + "year": NotRequired[Annotated[int, 2000]] + }) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_get_type_hints_collections_abc_callable(self): + # https://github.com/python/cpython/issues/91621 + P = ParamSpec('P') + def f(x: collections.abc.Callable[[int], int]): ... + def g(x: collections.abc.Callable[..., int]): ... + def h(x: collections.abc.Callable[P, int]): ... + + self.assertEqual(get_type_hints(f), {'x': collections.abc.Callable[[int], int]}) + self.assertEqual(get_type_hints(g), {'x': collections.abc.Callable[..., int]}) + self.assertEqual(get_type_hints(h), {'x': collections.abc.Callable[P, int]}) + + class GetUtilitiesTestCase(TestCase): + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_get_origin(self): T = TypeVar('T') + Ts = TypeVarTuple('Ts') P = ParamSpec('P') class C(Generic[T]): pass self.assertIs(get_origin(C[int]), C) @@ -3472,27 +6352,46 @@ class C(Generic[T]): pass self.assertIs(get_origin(list | str), types.UnionType) self.assertIs(get_origin(P.args), P) self.assertIs(get_origin(P.kwargs), P) + self.assertIs(get_origin(Required[int]), Required) + self.assertIs(get_origin(NotRequired[int]), NotRequired) + self.assertIs(get_origin((*Ts,)[0]), Unpack) + self.assertIs(get_origin(Unpack[Ts]), Unpack) + # self.assertIs(get_origin((*tuple[*Ts],)[0]), tuple) + self.assertIs(get_origin(Unpack[Tuple[Unpack[Ts]]]), Unpack) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_get_args(self): T = TypeVar('T') class C(Generic[T]): pass self.assertEqual(get_args(C[int]), (int,)) self.assertEqual(get_args(C[T]), (T,)) + self.assertEqual(get_args(typing.SupportsAbs[int]), (int,)) # Protocol + self.assertEqual(get_args(typing.SupportsAbs[T]), (T,)) + self.assertEqual(get_args(Point2DGeneric[int]), (int,)) # TypedDict + self.assertEqual(get_args(Point2DGeneric[T]), (T,)) + self.assertEqual(get_args(T), ()) self.assertEqual(get_args(int), ()) + self.assertEqual(get_args(Any), ()) + self.assertEqual(get_args(Self), ()) + self.assertEqual(get_args(LiteralString), ()) self.assertEqual(get_args(ClassVar[int]), (int,)) self.assertEqual(get_args(Union[int, str]), (int, str)) self.assertEqual(get_args(Literal[42, 43]), (42, 43)) self.assertEqual(get_args(Final[List[int]]), (List[int],)) + self.assertEqual(get_args(Optional[int]), (int, type(None))) + self.assertEqual(get_args(Union[int, None]), (int, type(None))) self.assertEqual(get_args(Union[int, Tuple[T, int]][str]), (int, Tuple[str, int])) self.assertEqual(get_args(typing.Dict[int, Tuple[T, T]][Optional[int]]), (int, Tuple[Optional[int], Optional[int]])) self.assertEqual(get_args(Callable[[], T][int]), ([], int)) self.assertEqual(get_args(Callable[..., int]), (..., int)) + self.assertEqual(get_args(Callable[[int], str]), ([int], str)) self.assertEqual(get_args(Union[int, Callable[[Tuple[T, ...]], str]]), (int, Callable[[Tuple[T, ...]], str])) self.assertEqual(get_args(Tuple[int, ...]), (int, ...)) - self.assertEqual(get_args(Tuple[()]), ((),)) + self.assertEqual(get_args(Tuple[()]), ()) self.assertEqual(get_args(Annotated[T, 'one', 2, ['three']]), (T, 'one', 2, ['three'])) self.assertEqual(get_args(List), ()) self.assertEqual(get_args(Tuple), ()) @@ -3505,26 +6404,31 @@ class C(Generic[T]): pass self.assertEqual(get_args(collections.abc.Callable[[int], str]), get_args(Callable[[int], str])) P = ParamSpec('P') + self.assertEqual(get_args(P), ()) + self.assertEqual(get_args(P.args), ()) + self.assertEqual(get_args(P.kwargs), ()) self.assertEqual(get_args(Callable[P, int]), (P, int)) + self.assertEqual(get_args(collections.abc.Callable[P, int]), (P, int)) self.assertEqual(get_args(Callable[Concatenate[int, P], int]), (Concatenate[int, P], int)) + self.assertEqual(get_args(collections.abc.Callable[Concatenate[int, P], int]), + (Concatenate[int, P], int)) + self.assertEqual(get_args(Concatenate[int, str, P]), (int, str, P)) self.assertEqual(get_args(list | str), (list, str)) + self.assertEqual(get_args(Required[int]), (int,)) + self.assertEqual(get_args(NotRequired[int]), (int,)) + self.assertEqual(get_args(TypeAlias), ()) + self.assertEqual(get_args(TypeGuard[int]), (int,)) + self.assertEqual(get_args(TypeIs[range]), (range,)) + Ts = TypeVarTuple('Ts') + self.assertEqual(get_args(Ts), ()) + self.assertEqual(get_args((*Ts,)[0]), (Ts,)) + self.assertEqual(get_args(Unpack[Ts]), (Ts,)) + # self.assertEqual(get_args(tuple[*Ts]), (*Ts,)) + self.assertEqual(get_args(tuple[Unpack[Ts]]), (Unpack[Ts],)) + # self.assertEqual(get_args((*tuple[*Ts],)[0]), (*Ts,)) + self.assertEqual(get_args(Unpack[tuple[Unpack[Ts]]]), (tuple[Unpack[Ts]],)) - def test_forward_ref_and_final(self): - # https://bugs.python.org/issue45166 - hints = get_type_hints(ann_module5) - self.assertEqual(hints, {'name': Final[str]}) - - hints = get_type_hints(ann_module5.MyClass) - self.assertEqual(hints, {'value': Final}) - - def test_top_level_class_var(self): - # https://bugs.python.org/issue45166 - with self.assertRaisesRegex( - TypeError, - r'typing.ClassVar\[int\] is not valid as type argument', - ): - get_type_hints(ann_module6) class CollectionsAbcTests(BaseTestCase): @@ -3549,27 +6453,17 @@ def test_iterator(self): self.assertIsInstance(it, typing.Iterator) self.assertNotIsInstance(42, typing.Iterator) - @skipUnless(ASYNCIO, 'Python 3.5 and multithreading required') def test_awaitable(self): - ns = {} - exec( - "async def foo() -> typing.Awaitable[int]:\n" - " return await AwaitableWrapper(42)\n", - globals(), ns) - foo = ns['foo'] + async def foo() -> typing.Awaitable[int]: + return await AwaitableWrapper(42) g = foo() self.assertIsInstance(g, typing.Awaitable) self.assertNotIsInstance(foo, typing.Awaitable) g.send(None) # Run foo() till completion, to avoid warning. - @skipUnless(ASYNCIO, 'Python 3.5 and multithreading required') def test_coroutine(self): - ns = {} - exec( - "async def foo():\n" - " return\n", - globals(), ns) - foo = ns['foo'] + async def foo(): + return g = foo() self.assertIsInstance(g, typing.Coroutine) with self.assertRaises(TypeError): @@ -3580,7 +6474,6 @@ def test_coroutine(self): except StopIteration: pass - @skipUnless(ASYNCIO, 'Python 3.5 and multithreading required') def test_async_iterable(self): base_it = range(10) # type: Iterator[int] it = AsyncIteratorWrapper(base_it) @@ -3588,7 +6481,6 @@ def test_async_iterable(self): self.assertIsInstance(it, typing.AsyncIterable) self.assertNotIsInstance(42, typing.AsyncIterable) - @skipUnless(ASYNCIO, 'Python 3.5 and multithreading required') def test_async_iterator(self): base_it = range(10) # type: Iterator[int] it = AsyncIteratorWrapper(base_it) @@ -3634,8 +6526,14 @@ def test_mutablesequence(self): self.assertNotIsInstance((), typing.MutableSequence) def test_bytestring(self): - self.assertIsInstance(b'', typing.ByteString) - self.assertIsInstance(bytearray(b''), typing.ByteString) + with self.assertWarns(DeprecationWarning): + self.assertIsInstance(b'', typing.ByteString) + with self.assertWarns(DeprecationWarning): + self.assertIsInstance(bytearray(b''), typing.ByteString) + with self.assertWarns(DeprecationWarning): + class Foo(typing.ByteString): ... + with self.assertWarns(DeprecationWarning): + class Bar(typing.ByteString, typing.Awaitable): ... def test_list(self): self.assertIsSubclass(list, typing.List) @@ -3659,6 +6557,8 @@ def test_frozenset(self): def test_dict(self): self.assertIsSubclass(dict, typing.Dict) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_dict_subscribe(self): K = TypeVar('K') V = TypeVar('V') @@ -3742,7 +6642,6 @@ class MyOrdDict(typing.OrderedDict[str, int]): self.assertIsSubclass(MyOrdDict, collections.OrderedDict) self.assertNotIsSubclass(collections.OrderedDict, MyOrdDict) - @skipUnless(sys.version_info >= (3, 3), 'ChainMap was added in 3.3') def test_chainmap_instantiation(self): self.assertIs(type(typing.ChainMap()), collections.ChainMap) self.assertIs(type(typing.ChainMap[KT, VT]()), collections.ChainMap) @@ -3750,7 +6649,6 @@ def test_chainmap_instantiation(self): class CM(typing.ChainMap[KT, VT]): ... self.assertIs(type(CM[int, str]()), CM) - @skipUnless(sys.version_info >= (3, 3), 'ChainMap was added in 3.3') def test_chainmap_subclass(self): class MyChainMap(typing.ChainMap[str, int]): @@ -3832,6 +6730,17 @@ def foo(): g = foo() self.assertIsSubclass(type(g), typing.Generator) + def test_generator_default(self): + g1 = typing.Generator[int] + g2 = typing.Generator[int, None, None] + self.assertEqual(get_args(g1), (int, type(None), type(None))) + self.assertEqual(get_args(g1), get_args(g2)) + + g3 = typing.Generator[int, float] + g4 = typing.Generator[int, float, None] + self.assertEqual(get_args(g3), (int, float, type(None))) + self.assertEqual(get_args(g3), get_args(g4)) + def test_no_generator_instantiation(self): with self.assertRaises(TypeError): typing.Generator() @@ -3841,10 +6750,9 @@ def test_no_generator_instantiation(self): typing.Generator[int, int, int]() def test_async_generator(self): - ns = {} - exec("async def f():\n" - " yield 42\n", globals(), ns) - g = ns['f']() + async def f(): + yield 42 + g = f() self.assertIsSubclass(type(g), typing.AsyncGenerator) def test_no_async_generator_instantiation(self): @@ -3878,7 +6786,7 @@ def __len__(self): return 0 self.assertEqual(len(MMC()), 0) - assert callable(MMC.update) + self.assertTrue(callable(MMC.update)) self.assertIsInstance(MMC(), typing.Mapping) class MMB(typing.MutableMapping[KT, VT]): @@ -3933,9 +6841,8 @@ def asend(self, value): def athrow(self, typ, val=None, tb=None): pass - ns = {} - exec('async def g(): yield 0', globals(), ns) - g = ns['g'] + async def g(): yield 0 + self.assertIsSubclass(G, typing.AsyncGenerator) self.assertIsSubclass(G, typing.AsyncIterable) self.assertIsSubclass(G, collections.abc.AsyncGenerator) @@ -4020,7 +6927,17 @@ def manager(): self.assertIsInstance(cm, typing.ContextManager) self.assertNotIsInstance(42, typing.ContextManager) - @skipUnless(ASYNCIO, 'Python 3.5 required') + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_contextmanager_type_params(self): + cm1 = typing.ContextManager[int] + self.assertEqual(get_args(cm1), (int, bool | None)) + cm2 = typing.ContextManager[int, None] + self.assertEqual(get_args(cm2), (int, types.NoneType)) + + type gen_cm[T1, T2] = typing.ContextManager[T1, T2] + self.assertEqual(get_args(gen_cm.__value__[int, None]), (int, types.NoneType)) + def test_async_contextmanager(self): class NotACM: pass @@ -4032,11 +6949,17 @@ def manager(): cm = manager() self.assertNotIsInstance(cm, typing.AsyncContextManager) - self.assertEqual(typing.AsyncContextManager[int].__args__, (int,)) + self.assertEqual(typing.AsyncContextManager[int].__args__, (int, bool | None)) with self.assertRaises(TypeError): isinstance(42, typing.AsyncContextManager[int]) with self.assertRaises(TypeError): - typing.AsyncContextManager[int, str] + typing.AsyncContextManager[int, str, float] + + def test_asynccontextmanager_type_params(self): + cm1 = typing.AsyncContextManager[int] + self.assertEqual(get_args(cm1), (int, bool | None)) + cm2 = typing.AsyncContextManager[int, None] + self.assertEqual(get_args(cm2), (int, types.NoneType)) class TypeTests(BaseTestCase): @@ -4074,16 +6997,24 @@ def foo(a: A) -> Optional[BaseException]: else: return a() - assert isinstance(foo(KeyboardInterrupt), KeyboardInterrupt) - assert foo(None) is None + self.assertIsInstance(foo(KeyboardInterrupt), KeyboardInterrupt) + self.assertIsNone(foo(None)) + + +class TestModules(TestCase): + func_names = ['_idfunc'] + + def test_c_functions(self): + for fname in self.func_names: + self.assertEqual(getattr(typing, fname).__module__, '_typing') class NewTypeTests(BaseTestCase): @classmethod def setUpClass(cls): global UserId - UserId = NewType('UserId', int) - cls.UserName = NewType(cls.__qualname__ + '.UserName', str) + UserId = typing.NewType('UserId', int) + cls.UserName = typing.NewType(cls.__qualname__ + '.UserName', str) @classmethod def tearDownClass(cls): @@ -4091,9 +7022,6 @@ def tearDownClass(cls): del UserId del cls.UserName - def tearDown(self): - self.clear_caches() - def test_basic(self): self.assertIsInstance(UserId(5), int) self.assertIsInstance(self.UserName('Joe'), str) @@ -4109,11 +7037,11 @@ class D(UserId): def test_or(self): for cls in (int, self.UserName): with self.subTest(cls=cls): - self.assertEqual(UserId | cls, Union[UserId, cls]) - self.assertEqual(cls | UserId, Union[cls, UserId]) + self.assertEqual(UserId | cls, typing.Union[UserId, cls]) + self.assertEqual(cls | UserId, typing.Union[cls, UserId]) - self.assertEqual(get_args(UserId | cls), (UserId, cls)) - self.assertEqual(get_args(cls | UserId), (cls, UserId)) + self.assertEqual(typing.get_args(UserId | cls), (UserId, cls)) + self.assertEqual(typing.get_args(cls | UserId), (cls, UserId)) def test_special_attrs(self): self.assertEqual(UserId.__name__, 'UserId') @@ -4134,7 +7062,7 @@ def test_repr(self): f'{__name__}.{self.__class__.__qualname__}.UserName') def test_pickle(self): - UserAge = NewType('UserAge', float) + UserAge = typing.NewType('UserAge', float) for proto in range(pickle.HIGHEST_PROTOCOL + 1): with self.subTest(proto=proto): pickled = pickle.dumps(UserId, proto) @@ -4154,6 +7082,18 @@ def test_missing__name__(self): ) exec(code, {}) + def test_error_message_when_subclassing(self): + with self.assertRaisesRegex( + TypeError, + re.escape( + "Cannot subclass an instance of NewType. Perhaps you were looking for: " + "`ProUserId = NewType('ProUserId', UserId)`" + ) + ): + class ProUserId(UserId): + ... + + class NamedTupleTests(BaseTestCase): class NestedEmployee(NamedTuple): @@ -4176,14 +7116,6 @@ def test_basics(self): self.assertEqual(Emp.__annotations__, collections.OrderedDict([('name', str), ('id', int)])) - def test_namedtuple_pyversion(self): - if sys.version_info[:2] < (3, 6): - with self.assertRaises(TypeError): - NamedTuple('Name', one=int, other=str) - with self.assertRaises(TypeError): - class NotYet(NamedTuple): - whatever = 0 - def test_annotation_usage(self): tim = CoolEmployee('Tim', 9000) self.assertIsInstance(tim, CoolEmployee) @@ -4239,22 +7171,122 @@ class A: with self.assertRaises(TypeError): class X(NamedTuple, A): x: int + with self.assertRaises(TypeError): + class Y(NamedTuple, tuple): + x: int + with self.assertRaises(TypeError): + class Z(NamedTuple, NamedTuple): + x: int + class B(NamedTuple): + x: int + with self.assertRaises(TypeError): + class C(NamedTuple, B): + y: str + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_generic(self): + class X(NamedTuple, Generic[T]): + x: T + self.assertEqual(X.__bases__, (tuple, Generic)) + self.assertEqual(X.__orig_bases__, (NamedTuple, Generic[T])) + self.assertEqual(X.__mro__, (X, tuple, Generic, object)) + + class Y(Generic[T], NamedTuple): + x: T + self.assertEqual(Y.__bases__, (Generic, tuple)) + self.assertEqual(Y.__orig_bases__, (Generic[T], NamedTuple)) + self.assertEqual(Y.__mro__, (Y, Generic, tuple, object)) + + for G in X, Y: + with self.subTest(type=G): + self.assertEqual(G.__parameters__, (T,)) + self.assertEqual(G[T].__args__, (T,)) + self.assertEqual(get_args(G[T]), (T,)) + A = G[int] + self.assertIs(A.__origin__, G) + self.assertEqual(A.__args__, (int,)) + self.assertEqual(get_args(A), (int,)) + self.assertEqual(A.__parameters__, ()) + + a = A(3) + self.assertIs(type(a), G) + self.assertEqual(a.x, 3) + + with self.assertRaises(TypeError): + G[int, str] + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_generic_pep695(self): + class X[T](NamedTuple): + x: T + T, = X.__type_params__ + self.assertIsInstance(T, TypeVar) + self.assertEqual(T.__name__, 'T') + self.assertEqual(X.__bases__, (tuple, Generic)) + self.assertEqual(X.__orig_bases__, (NamedTuple, Generic[T])) + self.assertEqual(X.__mro__, (X, tuple, Generic, object)) + self.assertEqual(X.__parameters__, (T,)) + self.assertEqual(X[str].__args__, (str,)) + self.assertEqual(X[str].__parameters__, ()) + + def test_non_generic_subscript(self): + # For backward compatibility, subscription works + # on arbitrary NamedTuple types. + class Group(NamedTuple): + key: T + group: list[T] + A = Group[int] + self.assertEqual(A.__origin__, Group) + self.assertEqual(A.__parameters__, ()) + self.assertEqual(A.__args__, (int,)) + a = A(1, [2]) + self.assertIs(type(a), Group) + self.assertEqual(a, (1, [2])) def test_namedtuple_keyword_usage(self): - LocalEmployee = NamedTuple("LocalEmployee", name=str, age=int) + with self.assertWarnsRegex( + DeprecationWarning, + "Creating NamedTuple classes using keyword arguments is deprecated" + ): + LocalEmployee = NamedTuple("LocalEmployee", name=str, age=int) + nick = LocalEmployee('Nick', 25) self.assertIsInstance(nick, tuple) self.assertEqual(nick.name, 'Nick') self.assertEqual(LocalEmployee.__name__, 'LocalEmployee') self.assertEqual(LocalEmployee._fields, ('name', 'age')) self.assertEqual(LocalEmployee.__annotations__, dict(name=str, age=int)) - with self.assertRaises(TypeError): + + with self.assertRaisesRegex( + TypeError, + "Either list of fields or keywords can be provided to NamedTuple, not both" + ): NamedTuple('Name', [('x', int)], y=str) - with self.assertRaises(TypeError): - NamedTuple('Name', x=1, y='a') + + with self.assertRaisesRegex( + TypeError, + "Either list of fields or keywords can be provided to NamedTuple, not both" + ): + NamedTuple('Name', [], y=str) + + with self.assertRaisesRegex( + TypeError, + ( + r"Cannot pass `None` as the 'fields' parameter " + r"and also specify fields using keyword arguments" + ) + ): + NamedTuple('Name', None, x=int) def test_namedtuple_special_keyword_names(self): - NT = NamedTuple("NT", cls=type, self=object, typename=str, fields=list) + with self.assertWarnsRegex( + DeprecationWarning, + "Creating NamedTuple classes using keyword arguments is deprecated" + ): + NT = NamedTuple("NT", cls=type, self=object, typename=str, fields=list) + self.assertEqual(NT.__name__, 'NT') self.assertEqual(NT._fields, ('cls', 'self', 'typename', 'fields')) a = NT(cls=str, self=42, typename='foo', fields=[('bar', tuple)]) @@ -4264,51 +7296,182 @@ def test_namedtuple_special_keyword_names(self): self.assertEqual(a.fields, [('bar', tuple)]) def test_empty_namedtuple(self): - NT = NamedTuple('NT') + expected_warning = re.escape( + "Failing to pass a value for the 'fields' parameter is deprecated " + "and will be disallowed in Python 3.15. " + "To create a NamedTuple class with 0 fields " + "using the functional syntax, " + "pass an empty list, e.g. `NT1 = NamedTuple('NT1', [])`." + ) + with self.assertWarnsRegex(DeprecationWarning, fr"^{expected_warning}$"): + NT1 = NamedTuple('NT1') + + expected_warning = re.escape( + "Passing `None` as the 'fields' parameter is deprecated " + "and will be disallowed in Python 3.15. " + "To create a NamedTuple class with 0 fields " + "using the functional syntax, " + "pass an empty list, e.g. `NT2 = NamedTuple('NT2', [])`." + ) + with self.assertWarnsRegex(DeprecationWarning, fr"^{expected_warning}$"): + NT2 = NamedTuple('NT2', None) + + NT3 = NamedTuple('NT2', []) class CNT(NamedTuple): pass # empty body - for struct in [NT, CNT]: + for struct in NT1, NT2, NT3, CNT: with self.subTest(struct=struct): self.assertEqual(struct._fields, ()) self.assertEqual(struct._field_defaults, {}) self.assertEqual(struct.__annotations__, {}) self.assertIsInstance(struct(), struct) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_namedtuple_errors(self): with self.assertRaises(TypeError): NamedTuple.__new__() - with self.assertRaises(TypeError): + + with self.assertRaisesRegex( + TypeError, + "missing 1 required positional argument" + ): NamedTuple() - with self.assertRaises(TypeError): + + with self.assertRaisesRegex( + TypeError, + "takes from 1 to 2 positional arguments but 3 were given" + ): NamedTuple('Emp', [('name', str)], None) - with self.assertRaises(ValueError): + + with self.assertRaisesRegex( + ValueError, + "Field names cannot start with an underscore" + ): NamedTuple('Emp', [('_name', str)]) - with self.assertRaises(TypeError): + + with self.assertRaisesRegex( + TypeError, + "missing 1 required positional argument: 'typename'" + ): NamedTuple(typename='Emp', name=str, id=int) - with self.assertRaises(TypeError): - NamedTuple('Emp', fields=[('name', str), ('id', int)]) - def test_copy_and_pickle(self): - global Emp # pickle wants to reference the class by name - Emp = NamedTuple('Emp', [('name', str), ('cool', int)]) - for cls in Emp, CoolEmployee, self.NestedEmployee: - with self.subTest(cls=cls): - jane = cls('jane', 37) - for proto in range(pickle.HIGHEST_PROTOCOL + 1): - z = pickle.dumps(jane, proto) - jane2 = pickle.loads(z) - self.assertEqual(jane2, jane) - self.assertIsInstance(jane2, cls) + def test_copy_and_pickle(self): + global Emp # pickle wants to reference the class by name + Emp = NamedTuple('Emp', [('name', str), ('cool', int)]) + for cls in Emp, CoolEmployee, self.NestedEmployee: + with self.subTest(cls=cls): + jane = cls('jane', 37) + for proto in range(pickle.HIGHEST_PROTOCOL + 1): + z = pickle.dumps(jane, proto) + jane2 = pickle.loads(z) + self.assertEqual(jane2, jane) + self.assertIsInstance(jane2, cls) + + jane2 = copy(jane) + self.assertEqual(jane2, jane) + self.assertIsInstance(jane2, cls) + + jane2 = deepcopy(jane) + self.assertEqual(jane2, jane) + self.assertIsInstance(jane2, cls) + + def test_orig_bases(self): + T = TypeVar('T') + + class SimpleNamedTuple(NamedTuple): + pass + + class GenericNamedTuple(NamedTuple, Generic[T]): + pass + + self.assertEqual(SimpleNamedTuple.__orig_bases__, (NamedTuple,)) + self.assertEqual(GenericNamedTuple.__orig_bases__, (NamedTuple, Generic[T])) + + CallNamedTuple = NamedTuple('CallNamedTuple', []) + + self.assertEqual(CallNamedTuple.__orig_bases__, (NamedTuple,)) + + def test_setname_called_on_values_in_class_dictionary(self): + class Vanilla: + def __set_name__(self, owner, name): + self.name = name + + class Foo(NamedTuple): + attr = Vanilla() + + foo = Foo() + self.assertEqual(len(foo), 0) + self.assertNotIn('attr', Foo._fields) + self.assertIsInstance(foo.attr, Vanilla) + self.assertEqual(foo.attr.name, "attr") + + class Bar(NamedTuple): + attr: Vanilla = Vanilla() + + bar = Bar() + self.assertEqual(len(bar), 1) + self.assertIn('attr', Bar._fields) + self.assertIsInstance(bar.attr, Vanilla) + self.assertEqual(bar.attr.name, "attr") + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_setname_raises_the_same_as_on_other_classes(self): + class CustomException(BaseException): pass + + class Annoying: + def __set_name__(self, owner, name): + raise CustomException + + annoying = Annoying() + + with self.assertRaises(CustomException) as cm: + class NormalClass: + attr = annoying + normal_exception = cm.exception + + with self.assertRaises(CustomException) as cm: + class NamedTupleClass(NamedTuple): + attr = annoying + namedtuple_exception = cm.exception - jane2 = copy(jane) - self.assertEqual(jane2, jane) - self.assertIsInstance(jane2, cls) + self.assertIs(type(namedtuple_exception), CustomException) + self.assertIs(type(namedtuple_exception), type(normal_exception)) - jane2 = deepcopy(jane) - self.assertEqual(jane2, jane) - self.assertIsInstance(jane2, cls) + self.assertEqual(len(namedtuple_exception.__notes__), 1) + self.assertEqual( + len(namedtuple_exception.__notes__), len(normal_exception.__notes__) + ) + + expected_note = ( + "Error calling __set_name__ on 'Annoying' instance " + "'attr' in 'NamedTupleClass'" + ) + self.assertEqual(namedtuple_exception.__notes__[0], expected_note) + self.assertEqual( + namedtuple_exception.__notes__[0], + normal_exception.__notes__[0].replace("NormalClass", "NamedTupleClass") + ) + + def test_strange_errors_when_accessing_set_name_itself(self): + class CustomException(Exception): pass + + class Meta(type): + def __getattribute__(self, attr): + if attr == "__set_name__": + raise CustomException + return object.__getattribute__(self, attr) + + class VeryAnnoying(metaclass=Meta): pass + + very_annoying = VeryAnnoying() + + with self.assertRaises(CustomException): + class Foo(NamedTuple): + attr = very_annoying class TypedDictTests(BaseTestCase): @@ -4326,33 +7489,10 @@ def test_basics_functional_syntax(self): self.assertEqual(Emp.__bases__, (dict,)) self.assertEqual(Emp.__annotations__, {'name': str, 'id': int}) self.assertEqual(Emp.__total__, True) - - def test_basics_keywords_syntax(self): - Emp = TypedDict('Emp', name=str, id=int) - self.assertIsSubclass(Emp, dict) - self.assertIsSubclass(Emp, typing.MutableMapping) - self.assertNotIsSubclass(Emp, collections.abc.Sequence) - jim = Emp(name='Jim', id=1) - self.assertIs(type(jim), dict) - self.assertEqual(jim['name'], 'Jim') - self.assertEqual(jim['id'], 1) - self.assertEqual(Emp.__name__, 'Emp') - self.assertEqual(Emp.__module__, __name__) - self.assertEqual(Emp.__bases__, (dict,)) - self.assertEqual(Emp.__annotations__, {'name': str, 'id': int}) - self.assertEqual(Emp.__total__, True) - - def test_typeddict_special_keyword_names(self): - TD = TypedDict("TD", cls=type, self=object, typename=str, _typename=int, fields=list, _fields=dict) - self.assertEqual(TD.__name__, 'TD') - self.assertEqual(TD.__annotations__, {'cls': type, 'self': object, 'typename': str, '_typename': int, 'fields': list, '_fields': dict}) - a = TD(cls=str, self=42, typename='foo', _typename=53, fields=[('bar', tuple)], _fields={'baz', set}) - self.assertEqual(a['cls'], str) - self.assertEqual(a['self'], 42) - self.assertEqual(a['typename'], 'foo') - self.assertEqual(a['_typename'], 53) - self.assertEqual(a['fields'], [('bar', tuple)]) - self.assertEqual(a['_fields'], {'baz', set}) + self.assertEqual(Emp.__required_keys__, {'name', 'id'}) + self.assertIsInstance(Emp.__required_keys__, frozenset) + self.assertEqual(Emp.__optional_keys__, set()) + self.assertIsInstance(Emp.__optional_keys__, frozenset) def test_typeddict_create_errors(self): with self.assertRaises(TypeError): @@ -4361,11 +7501,10 @@ def test_typeddict_create_errors(self): TypedDict() with self.assertRaises(TypeError): TypedDict('Emp', [('name', str)], None) - with self.assertRaises(TypeError): - TypedDict(_typename='Emp', name=str, id=int) + TypedDict(_typename='Emp') with self.assertRaises(TypeError): - TypedDict('Emp', _fields={'name': str, 'id': int}) + TypedDict('Emp', name=str, id=int) def test_typeddict_errors(self): Emp = TypedDict('Emp', {'name': str, 'id': int}) @@ -4377,10 +7516,6 @@ def test_typeddict_errors(self): isinstance(jim, Emp) with self.assertRaises(TypeError): issubclass(dict, Emp) - with self.assertRaises(TypeError): - TypedDict('Hi', x=1) - with self.assertRaises(TypeError): - TypedDict('Hi', [('x', int), ('y', 1)]) with self.assertRaises(TypeError): TypedDict('Hi', [('x', int)], y=int) @@ -4399,7 +7534,7 @@ def test_py36_class_syntax_usage(self): def test_pickle(self): global EmpD # pickle wants to reference the class by name - EmpD = TypedDict('EmpD', name=str, id=int) + EmpD = TypedDict('EmpD', {'name': str, 'id': int}) jane = EmpD({'name': 'jane', 'id': 37}) for proto in range(pickle.HIGHEST_PROTOCOL + 1): z = pickle.dumps(jane, proto) @@ -4410,8 +7545,19 @@ def test_pickle(self): EmpDnew = pickle.loads(ZZ) self.assertEqual(EmpDnew({'name': 'jane', 'id': 37}), jane) + def test_pickle_generic(self): + point = Point2DGeneric(a=5.0, b=3.0) + for proto in range(pickle.HIGHEST_PROTOCOL + 1): + z = pickle.dumps(point, proto) + point2 = pickle.loads(z) + self.assertEqual(point2, point) + self.assertEqual(point2, {'a': 5.0, 'b': 3.0}) + ZZ = pickle.dumps(Point2DGeneric, proto) + Point2DGenericNew = pickle.loads(ZZ) + self.assertEqual(Point2DGenericNew({'a': 5.0, 'b': 3.0}), point) + def test_optional(self): - EmpD = TypedDict('EmpD', name=str, id=int) + EmpD = TypedDict('EmpD', {'name': str, 'id': int}) self.assertEqual(typing.Optional[EmpD], typing.Union[None, EmpD]) self.assertNotEqual(typing.List[EmpD], typing.Tuple[EmpD]) @@ -4422,7 +7568,9 @@ def test_total(self): self.assertEqual(D(x=1), {'x': 1}) self.assertEqual(D.__total__, False) self.assertEqual(D.__required_keys__, frozenset()) + self.assertIsInstance(D.__required_keys__, frozenset) self.assertEqual(D.__optional_keys__, {'x'}) + self.assertIsInstance(D.__optional_keys__, frozenset) self.assertEqual(Options(), {}) self.assertEqual(Options(log_level=2), {'log_level': 2}) @@ -4430,12 +7578,25 @@ def test_total(self): self.assertEqual(Options.__required_keys__, frozenset()) self.assertEqual(Options.__optional_keys__, {'log_level', 'log_path'}) + def test_total_inherits_non_total(self): + class TD1(TypedDict, total=False): + a: int + + self.assertIs(TD1.__total__, False) + + class TD2(TD1): + b: str + + self.assertIs(TD2.__total__, True) + def test_optional_keys(self): class Point2Dor3D(Point2D, total=False): z: int - assert Point2Dor3D.__required_keys__ == frozenset(['x', 'y']) - assert Point2Dor3D.__optional_keys__ == frozenset(['z']) + self.assertEqual(Point2Dor3D.__required_keys__, frozenset(['x', 'y'])) + self.assertIsInstance(Point2Dor3D.__required_keys__, frozenset) + self.assertEqual(Point2Dor3D.__optional_keys__, frozenset(['z'])) + self.assertIsInstance(Point2Dor3D.__optional_keys__, frozenset) def test_keys_inheritance(self): class BaseAnimal(TypedDict): @@ -4448,26 +7609,102 @@ class Animal(BaseAnimal, total=False): class Cat(Animal): fur_color: str - assert BaseAnimal.__required_keys__ == frozenset(['name']) - assert BaseAnimal.__optional_keys__ == frozenset([]) - assert BaseAnimal.__annotations__ == {'name': str} + self.assertEqual(BaseAnimal.__required_keys__, frozenset(['name'])) + self.assertEqual(BaseAnimal.__optional_keys__, frozenset([])) + self.assertEqual(BaseAnimal.__annotations__, {'name': str}) - assert Animal.__required_keys__ == frozenset(['name']) - assert Animal.__optional_keys__ == frozenset(['tail', 'voice']) - assert Animal.__annotations__ == { + self.assertEqual(Animal.__required_keys__, frozenset(['name'])) + self.assertEqual(Animal.__optional_keys__, frozenset(['tail', 'voice'])) + self.assertEqual(Animal.__annotations__, { 'name': str, 'tail': bool, 'voice': str, - } + }) - assert Cat.__required_keys__ == frozenset(['name', 'fur_color']) - assert Cat.__optional_keys__ == frozenset(['tail', 'voice']) - assert Cat.__annotations__ == { + self.assertEqual(Cat.__required_keys__, frozenset(['name', 'fur_color'])) + self.assertEqual(Cat.__optional_keys__, frozenset(['tail', 'voice'])) + self.assertEqual(Cat.__annotations__, { 'fur_color': str, 'name': str, 'tail': bool, 'voice': str, - } + }) + + def test_keys_inheritance_with_same_name(self): + class NotTotal(TypedDict, total=False): + a: int + + class Total(NotTotal): + a: int + + self.assertEqual(NotTotal.__required_keys__, frozenset()) + self.assertEqual(NotTotal.__optional_keys__, frozenset(['a'])) + self.assertEqual(Total.__required_keys__, frozenset(['a'])) + self.assertEqual(Total.__optional_keys__, frozenset()) + + class Base(TypedDict): + a: NotRequired[int] + b: Required[int] + + class Child(Base): + a: Required[int] + b: NotRequired[int] + + self.assertEqual(Base.__required_keys__, frozenset(['b'])) + self.assertEqual(Base.__optional_keys__, frozenset(['a'])) + self.assertEqual(Child.__required_keys__, frozenset(['a'])) + self.assertEqual(Child.__optional_keys__, frozenset(['b'])) + + def test_multiple_inheritance_with_same_key(self): + class Base1(TypedDict): + a: NotRequired[int] + + class Base2(TypedDict): + a: Required[str] + + class Child(Base1, Base2): + pass + + # Last base wins + self.assertEqual(Child.__annotations__, {'a': Required[str]}) + self.assertEqual(Child.__required_keys__, frozenset(['a'])) + self.assertEqual(Child.__optional_keys__, frozenset()) + + def test_required_notrequired_keys(self): + self.assertEqual(NontotalMovie.__required_keys__, + frozenset({"title"})) + self.assertEqual(NontotalMovie.__optional_keys__, + frozenset({"year"})) + + self.assertEqual(TotalMovie.__required_keys__, + frozenset({"title"})) + self.assertEqual(TotalMovie.__optional_keys__, + frozenset({"year"})) + + self.assertEqual(_typed_dict_helper.VeryAnnotated.__required_keys__, + frozenset()) + self.assertEqual(_typed_dict_helper.VeryAnnotated.__optional_keys__, + frozenset({"a"})) + + self.assertEqual(AnnotatedMovie.__required_keys__, + frozenset({"title"})) + self.assertEqual(AnnotatedMovie.__optional_keys__, + frozenset({"year"})) + + self.assertEqual(WeirdlyQuotedMovie.__required_keys__, + frozenset({"title"})) + self.assertEqual(WeirdlyQuotedMovie.__optional_keys__, + frozenset({"year"})) + + self.assertEqual(ChildTotalMovie.__required_keys__, + frozenset({"title"})) + self.assertEqual(ChildTotalMovie.__optional_keys__, + frozenset({"year"})) + + self.assertEqual(ChildDeeplyAnnotatedMovie.__required_keys__, + frozenset({"title"})) + self.assertEqual(ChildDeeplyAnnotatedMovie.__optional_keys__, + frozenset({"year"})) def test_multiple_inheritance(self): class One(TypedDict): @@ -4556,18 +7793,181 @@ class ChildWithInlineAndOptional(Untotal, Inline): class Wrong(*bases): pass + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_is_typeddict(self): - assert is_typeddict(Point2D) is True - assert is_typeddict(Union[str, int]) is False + self.assertIs(is_typeddict(Point2D), True) + self.assertIs(is_typeddict(Union[str, int]), False) # classes, not instances - assert is_typeddict(Point2D()) is False + self.assertIs(is_typeddict(Point2D()), False) + call_based = TypedDict('call_based', {'a': int}) + self.assertIs(is_typeddict(call_based), True) + self.assertIs(is_typeddict(call_based()), False) + + T = TypeVar("T") + class BarGeneric(TypedDict, Generic[T]): + a: T + self.assertIs(is_typeddict(BarGeneric), True) + self.assertIs(is_typeddict(BarGeneric[int]), False) + self.assertIs(is_typeddict(BarGeneric()), False) + + class NewGeneric[T](TypedDict): + a: T + self.assertIs(is_typeddict(NewGeneric), True) + self.assertIs(is_typeddict(NewGeneric[int]), False) + self.assertIs(is_typeddict(NewGeneric()), False) + + # The TypedDict constructor is not itself a TypedDict + self.assertIs(is_typeddict(TypedDict), False) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_get_type_hints(self): self.assertEqual( get_type_hints(Bar), {'a': typing.Optional[int], 'b': int} ) + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_get_type_hints_generic(self): + self.assertEqual( + get_type_hints(BarGeneric), + {'a': typing.Optional[T], 'b': int} + ) + + class FooBarGeneric(BarGeneric[int]): + c: str + + self.assertEqual( + get_type_hints(FooBarGeneric), + {'a': typing.Optional[T], 'b': int, 'c': str} + ) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_pep695_generic_typeddict(self): + class A[T](TypedDict): + a: T + + T, = A.__type_params__ + self.assertIsInstance(T, TypeVar) + self.assertEqual(T.__name__, 'T') + self.assertEqual(A.__bases__, (Generic, dict)) + self.assertEqual(A.__orig_bases__, (TypedDict, Generic[T])) + self.assertEqual(A.__mro__, (A, Generic, dict, object)) + self.assertEqual(A.__parameters__, (T,)) + self.assertEqual(A[str].__parameters__, ()) + self.assertEqual(A[str].__args__, (str,)) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_generic_inheritance(self): + class A(TypedDict, Generic[T]): + a: T + + self.assertEqual(A.__bases__, (Generic, dict)) + self.assertEqual(A.__orig_bases__, (TypedDict, Generic[T])) + self.assertEqual(A.__mro__, (A, Generic, dict, object)) + self.assertEqual(A.__parameters__, (T,)) + self.assertEqual(A[str].__parameters__, ()) + self.assertEqual(A[str].__args__, (str,)) + + class A2(Generic[T], TypedDict): + a: T + + self.assertEqual(A2.__bases__, (Generic, dict)) + self.assertEqual(A2.__orig_bases__, (Generic[T], TypedDict)) + self.assertEqual(A2.__mro__, (A2, Generic, dict, object)) + self.assertEqual(A2.__parameters__, (T,)) + self.assertEqual(A2[str].__parameters__, ()) + self.assertEqual(A2[str].__args__, (str,)) + + class B(A[KT], total=False): + b: KT + + self.assertEqual(B.__bases__, (Generic, dict)) + self.assertEqual(B.__orig_bases__, (A[KT],)) + self.assertEqual(B.__mro__, (B, Generic, dict, object)) + self.assertEqual(B.__parameters__, (KT,)) + self.assertEqual(B.__total__, False) + self.assertEqual(B.__optional_keys__, frozenset(['b'])) + self.assertEqual(B.__required_keys__, frozenset(['a'])) + + self.assertEqual(B[str].__parameters__, ()) + self.assertEqual(B[str].__args__, (str,)) + self.assertEqual(B[str].__origin__, B) + + class C(B[int]): + c: int + + self.assertEqual(C.__bases__, (Generic, dict)) + self.assertEqual(C.__orig_bases__, (B[int],)) + self.assertEqual(C.__mro__, (C, Generic, dict, object)) + self.assertEqual(C.__parameters__, ()) + self.assertEqual(C.__total__, True) + self.assertEqual(C.__optional_keys__, frozenset(['b'])) + self.assertEqual(C.__required_keys__, frozenset(['a', 'c'])) + self.assertEqual(C.__annotations__, { + 'a': T, + 'b': KT, + 'c': int, + }) + with self.assertRaises(TypeError): + C[str] + + + class Point3D(Point2DGeneric[T], Generic[T, KT]): + c: KT + + self.assertEqual(Point3D.__bases__, (Generic, dict)) + self.assertEqual(Point3D.__orig_bases__, (Point2DGeneric[T], Generic[T, KT])) + self.assertEqual(Point3D.__mro__, (Point3D, Generic, dict, object)) + self.assertEqual(Point3D.__parameters__, (T, KT)) + self.assertEqual(Point3D.__total__, True) + self.assertEqual(Point3D.__optional_keys__, frozenset()) + self.assertEqual(Point3D.__required_keys__, frozenset(['a', 'b', 'c'])) + self.assertEqual(Point3D.__annotations__, { + 'a': T, + 'b': T, + 'c': KT, + }) + self.assertEqual(Point3D[int, str].__origin__, Point3D) + + with self.assertRaises(TypeError): + Point3D[int] + + with self.assertRaises(TypeError): + class Point3D(Point2DGeneric[T], Generic[KT]): + c: KT + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_implicit_any_inheritance(self): + class A(TypedDict, Generic[T]): + a: T + + class B(A[KT], total=False): + b: KT + + class WithImplicitAny(B): + c: int + + self.assertEqual(WithImplicitAny.__bases__, (Generic, dict,)) + self.assertEqual(WithImplicitAny.__mro__, (WithImplicitAny, Generic, dict, object)) + # Consistent with GenericTests.test_implicit_any + self.assertEqual(WithImplicitAny.__parameters__, ()) + self.assertEqual(WithImplicitAny.__total__, True) + self.assertEqual(WithImplicitAny.__optional_keys__, frozenset(['b'])) + self.assertEqual(WithImplicitAny.__required_keys__, frozenset(['a', 'c'])) + self.assertEqual(WithImplicitAny.__annotations__, { + 'a': T, + 'b': KT, + 'c': int, + }) + with self.assertRaises(TypeError): + WithImplicitAny[str] + # TODO: RUSTPYTHON @unittest.expectedFailure def test_non_generic_subscript(self): @@ -4583,9 +7983,249 @@ class TD(TypedDict): self.assertIs(type(a), dict) self.assertEqual(a, {'a': 1}) + def test_orig_bases(self): + T = TypeVar('T') + + class Parent(TypedDict): + pass + + class Child(Parent): + pass + + class OtherChild(Parent): + pass + + class MixedChild(Child, OtherChild, Parent): + pass + + class GenericParent(TypedDict, Generic[T]): + pass + + class GenericChild(GenericParent[int]): + pass + + class OtherGenericChild(GenericParent[str]): + pass + + class MixedGenericChild(GenericChild, OtherGenericChild, GenericParent[float]): + pass + + class MultipleGenericBases(GenericParent[int], GenericParent[float]): + pass + + CallTypedDict = TypedDict('CallTypedDict', {}) + + self.assertEqual(Parent.__orig_bases__, (TypedDict,)) + self.assertEqual(Child.__orig_bases__, (Parent,)) + self.assertEqual(OtherChild.__orig_bases__, (Parent,)) + self.assertEqual(MixedChild.__orig_bases__, (Child, OtherChild, Parent,)) + self.assertEqual(GenericParent.__orig_bases__, (TypedDict, Generic[T])) + self.assertEqual(GenericChild.__orig_bases__, (GenericParent[int],)) + self.assertEqual(OtherGenericChild.__orig_bases__, (GenericParent[str],)) + self.assertEqual(MixedGenericChild.__orig_bases__, (GenericChild, OtherGenericChild, GenericParent[float])) + self.assertEqual(MultipleGenericBases.__orig_bases__, (GenericParent[int], GenericParent[float])) + self.assertEqual(CallTypedDict.__orig_bases__, (TypedDict,)) + + def test_zero_fields_typeddicts(self): + T1 = TypedDict("T1", {}) + class T2(TypedDict): pass + class T3[tvar](TypedDict): pass + S = TypeVar("S") + class T4(TypedDict, Generic[S]): pass + + expected_warning = re.escape( + "Failing to pass a value for the 'fields' parameter is deprecated " + "and will be disallowed in Python 3.15. " + "To create a TypedDict class with 0 fields " + "using the functional syntax, " + "pass an empty dictionary, e.g. `T5 = TypedDict('T5', {})`." + ) + with self.assertWarnsRegex(DeprecationWarning, fr"^{expected_warning}$"): + T5 = TypedDict('T5') + + expected_warning = re.escape( + "Passing `None` as the 'fields' parameter is deprecated " + "and will be disallowed in Python 3.15. " + "To create a TypedDict class with 0 fields " + "using the functional syntax, " + "pass an empty dictionary, e.g. `T6 = TypedDict('T6', {})`." + ) + with self.assertWarnsRegex(DeprecationWarning, fr"^{expected_warning}$"): + T6 = TypedDict('T6', None) + + for klass in T1, T2, T3, T4, T5, T6: + with self.subTest(klass=klass.__name__): + self.assertEqual(klass.__annotations__, {}) + self.assertEqual(klass.__required_keys__, set()) + self.assertEqual(klass.__optional_keys__, set()) + self.assertIsInstance(klass(), dict) + + def test_readonly_inheritance(self): + class Base1(TypedDict): + a: ReadOnly[int] + + class Child1(Base1): + b: str + + self.assertEqual(Child1.__readonly_keys__, frozenset({'a'})) + self.assertEqual(Child1.__mutable_keys__, frozenset({'b'})) + + class Base2(TypedDict): + a: int + + class Child2(Base2): + b: ReadOnly[str] + + self.assertEqual(Child2.__readonly_keys__, frozenset({'b'})) + self.assertEqual(Child2.__mutable_keys__, frozenset({'a'})) + + def test_cannot_make_mutable_key_readonly(self): + class Base(TypedDict): + a: int + + with self.assertRaises(TypeError): + class Child(Base): + a: ReadOnly[int] + + def test_can_make_readonly_key_mutable(self): + class Base(TypedDict): + a: ReadOnly[int] + + class Child(Base): + a: int + + self.assertEqual(Child.__readonly_keys__, frozenset()) + self.assertEqual(Child.__mutable_keys__, frozenset({'a'})) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_combine_qualifiers(self): + class AllTheThings(TypedDict): + a: Annotated[Required[ReadOnly[int]], "why not"] + b: Required[Annotated[ReadOnly[int], "why not"]] + c: ReadOnly[NotRequired[Annotated[int, "why not"]]] + d: NotRequired[Annotated[int, "why not"]] + + self.assertEqual(AllTheThings.__required_keys__, frozenset({'a', 'b'})) + self.assertEqual(AllTheThings.__optional_keys__, frozenset({'c', 'd'})) + self.assertEqual(AllTheThings.__readonly_keys__, frozenset({'a', 'b', 'c'})) + self.assertEqual(AllTheThings.__mutable_keys__, frozenset({'d'})) + + self.assertEqual( + get_type_hints(AllTheThings, include_extras=False), + {'a': int, 'b': int, 'c': int, 'd': int}, + ) + self.assertEqual( + get_type_hints(AllTheThings, include_extras=True), + { + 'a': Annotated[Required[ReadOnly[int]], 'why not'], + 'b': Required[Annotated[ReadOnly[int], 'why not']], + 'c': ReadOnly[NotRequired[Annotated[int, 'why not']]], + 'd': NotRequired[Annotated[int, 'why not']], + }, + ) + + +class RequiredTests(BaseTestCase): + + def test_basics(self): + with self.assertRaises(TypeError): + Required[NotRequired] + with self.assertRaises(TypeError): + Required[int, str] + with self.assertRaises(TypeError): + Required[int][str] + + def test_repr(self): + self.assertEqual(repr(Required), 'typing.Required') + cv = Required[int] + self.assertEqual(repr(cv), 'typing.Required[int]') + cv = Required[Employee] + self.assertEqual(repr(cv), f'typing.Required[{__name__}.Employee]') + + def test_cannot_subclass(self): + with self.assertRaisesRegex(TypeError, CANNOT_SUBCLASS_TYPE): + class C(type(Required)): + pass + with self.assertRaisesRegex(TypeError, CANNOT_SUBCLASS_TYPE): + class D(type(Required[int])): + pass + with self.assertRaisesRegex(TypeError, + r'Cannot subclass typing\.Required'): + class E(Required): + pass + with self.assertRaisesRegex(TypeError, + r'Cannot subclass typing\.Required\[int\]'): + class F(Required[int]): + pass + + def test_cannot_init(self): + with self.assertRaises(TypeError): + Required() + with self.assertRaises(TypeError): + type(Required)() + with self.assertRaises(TypeError): + type(Required[Optional[int]])() + + def test_no_isinstance(self): + with self.assertRaises(TypeError): + isinstance(1, Required[int]) + with self.assertRaises(TypeError): + issubclass(int, Required) + + +class NotRequiredTests(BaseTestCase): + + def test_basics(self): + with self.assertRaises(TypeError): + NotRequired[Required] + with self.assertRaises(TypeError): + NotRequired[int, str] + with self.assertRaises(TypeError): + NotRequired[int][str] + + def test_repr(self): + self.assertEqual(repr(NotRequired), 'typing.NotRequired') + cv = NotRequired[int] + self.assertEqual(repr(cv), 'typing.NotRequired[int]') + cv = NotRequired[Employee] + self.assertEqual(repr(cv), f'typing.NotRequired[{__name__}.Employee]') + + def test_cannot_subclass(self): + with self.assertRaisesRegex(TypeError, CANNOT_SUBCLASS_TYPE): + class C(type(NotRequired)): + pass + with self.assertRaisesRegex(TypeError, CANNOT_SUBCLASS_TYPE): + class D(type(NotRequired[int])): + pass + with self.assertRaisesRegex(TypeError, + r'Cannot subclass typing\.NotRequired'): + class E(NotRequired): + pass + with self.assertRaisesRegex(TypeError, + r'Cannot subclass typing\.NotRequired\[int\]'): + class F(NotRequired[int]): + pass + + def test_cannot_init(self): + with self.assertRaises(TypeError): + NotRequired() + with self.assertRaises(TypeError): + type(NotRequired)() + with self.assertRaises(TypeError): + type(NotRequired[Optional[int]])() + + def test_no_isinstance(self): + with self.assertRaises(TypeError): + isinstance(1, NotRequired[int]) + with self.assertRaises(TypeError): + issubclass(int, NotRequired) + class IOTests(BaseTestCase): + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_io(self): def stuff(a: IO) -> AnyStr: @@ -4594,6 +8234,8 @@ def stuff(a: IO) -> AnyStr: a = stuff.__annotations__['a'] self.assertEqual(a.__parameters__, (AnyStr,)) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_textio(self): def stuff(a: TextIO) -> str: @@ -4602,6 +8244,8 @@ def stuff(a: TextIO) -> str: a = stuff.__annotations__['a'] self.assertEqual(a.__parameters__, ()) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_binaryio(self): def stuff(a: BinaryIO) -> bytes: @@ -4610,14 +8254,6 @@ def stuff(a: BinaryIO) -> bytes: a = stuff.__annotations__['a'] self.assertEqual(a.__parameters__, ()) - def test_io_submodule(self): - from typing.io import IO, TextIO, BinaryIO, __all__, __name__ - self.assertIs(IO, typing.IO) - self.assertIs(TextIO, typing.TextIO) - self.assertIs(BinaryIO, typing.BinaryIO) - self.assertEqual(set(__all__), set(['IO', 'TextIO', 'BinaryIO'])) - self.assertEqual(__name__, 'typing.io') - class RETests(BaseTestCase): # Much of this is really testing _TypeAlias. @@ -4662,31 +8298,29 @@ def test_repr(self): self.assertEqual(repr(Match[str]), 'typing.Match[str]') self.assertEqual(repr(Match[bytes]), 'typing.Match[bytes]') - def test_re_submodule(self): - from typing.re import Match, Pattern, __all__, __name__ - self.assertIs(Match, typing.Match) - self.assertIs(Pattern, typing.Pattern) - self.assertEqual(set(__all__), set(['Match', 'Pattern'])) - self.assertEqual(__name__, 'typing.re') - # TODO: RUSTPYTHON @unittest.expectedFailure def test_cannot_subclass(self): - with self.assertRaises(TypeError) as ex: - + with self.assertRaisesRegex( + TypeError, + r"type 're\.Match' is not an acceptable base type", + ): class A(typing.Match): pass + with self.assertRaisesRegex( + TypeError, + r"type 're\.Pattern' is not an acceptable base type", + ): + class B(typing.Pattern): + pass - self.assertEqual(str(ex.exception), - "type 're.Match' is not an acceptable base type") class AnnotatedTests(BaseTestCase): def test_new(self): with self.assertRaisesRegex( - TypeError, - 'Type Annotated cannot be instantiated', + TypeError, 'Cannot instantiate typing.Annotated', ): Annotated() @@ -4700,12 +8334,93 @@ def test_repr(self): "typing.Annotated[typing.List[int], 4, 5]" ) + def test_dir(self): + dir_items = set(dir(Annotated[int, 4])) + for required_item in [ + '__args__', '__parameters__', '__origin__', + '__metadata__', + ]: + with self.subTest(required_item=required_item): + self.assertIn(required_item, dir_items) + def test_flatten(self): A = Annotated[Annotated[int, 4], 5] self.assertEqual(A, Annotated[int, 4, 5]) self.assertEqual(A.__metadata__, (4, 5)) self.assertEqual(A.__origin__, int) + def test_deduplicate_from_union(self): + # Regular: + self.assertEqual(get_args(Annotated[int, 1] | int), + (Annotated[int, 1], int)) + self.assertEqual(get_args(Union[Annotated[int, 1], int]), + (Annotated[int, 1], int)) + self.assertEqual(get_args(Annotated[int, 1] | Annotated[int, 2] | int), + (Annotated[int, 1], Annotated[int, 2], int)) + self.assertEqual(get_args(Union[Annotated[int, 1], Annotated[int, 2], int]), + (Annotated[int, 1], Annotated[int, 2], int)) + self.assertEqual(get_args(Annotated[int, 1] | Annotated[str, 1] | int), + (Annotated[int, 1], Annotated[str, 1], int)) + self.assertEqual(get_args(Union[Annotated[int, 1], Annotated[str, 1], int]), + (Annotated[int, 1], Annotated[str, 1], int)) + + # Duplicates: + self.assertEqual(Annotated[int, 1] | Annotated[int, 1] | int, + Annotated[int, 1] | int) + self.assertEqual(Union[Annotated[int, 1], Annotated[int, 1], int], + Union[Annotated[int, 1], int]) + + # Unhashable metadata: + self.assertEqual(get_args(str | Annotated[int, {}] | Annotated[int, set()] | int), + (str, Annotated[int, {}], Annotated[int, set()], int)) + self.assertEqual(get_args(Union[str, Annotated[int, {}], Annotated[int, set()], int]), + (str, Annotated[int, {}], Annotated[int, set()], int)) + self.assertEqual(get_args(str | Annotated[int, {}] | Annotated[str, {}] | int), + (str, Annotated[int, {}], Annotated[str, {}], int)) + self.assertEqual(get_args(Union[str, Annotated[int, {}], Annotated[str, {}], int]), + (str, Annotated[int, {}], Annotated[str, {}], int)) + + self.assertEqual(get_args(Annotated[int, 1] | str | Annotated[str, {}] | int), + (Annotated[int, 1], str, Annotated[str, {}], int)) + self.assertEqual(get_args(Union[Annotated[int, 1], str, Annotated[str, {}], int]), + (Annotated[int, 1], str, Annotated[str, {}], int)) + + import dataclasses + @dataclasses.dataclass + class ValueRange: + lo: int + hi: int + v = ValueRange(1, 2) + self.assertEqual(get_args(Annotated[int, v] | None), + (Annotated[int, v], types.NoneType)) + self.assertEqual(get_args(Union[Annotated[int, v], None]), + (Annotated[int, v], types.NoneType)) + self.assertEqual(get_args(Optional[Annotated[int, v]]), + (Annotated[int, v], types.NoneType)) + + # Unhashable metadata duplicated: + self.assertEqual(Annotated[int, {}] | Annotated[int, {}] | int, + Annotated[int, {}] | int) + self.assertEqual(Annotated[int, {}] | Annotated[int, {}] | int, + int | Annotated[int, {}]) + self.assertEqual(Union[Annotated[int, {}], Annotated[int, {}], int], + Union[Annotated[int, {}], int]) + self.assertEqual(Union[Annotated[int, {}], Annotated[int, {}], int], + Union[int, Annotated[int, {}]]) + + def test_order_in_union(self): + expr1 = Annotated[int, 1] | str | Annotated[str, {}] | int + for args in itertools.permutations(get_args(expr1)): + with self.subTest(args=args): + self.assertEqual(expr1, reduce(operator.or_, args)) + + expr2 = Union[Annotated[int, 1], str, Annotated[str, {}], int] + for args in itertools.permutations(get_args(expr2)): + with self.subTest(args=args): + self.assertEqual(expr2, Union[args]) + + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_specialize(self): L = Annotated[List[T], "my decoration"] LI = Annotated[List[int], "my decoration"] @@ -4726,6 +8441,16 @@ def test_hash_eq(self): {Annotated[int, 4, 5], Annotated[int, 4, 5], Annotated[T, 4, 5]}, {Annotated[int, 4, 5], Annotated[T, 4, 5]} ) + # Unhashable `metadata` raises `TypeError`: + a1 = Annotated[int, []] + with self.assertRaises(TypeError): + hash(a1) + + class A: + __hash__ = None + a2 = Annotated[int, A()] + with self.assertRaises(TypeError): + hash(a2) def test_instantiate(self): class C: @@ -4746,11 +8471,24 @@ def __eq__(self, other): self.assertEqual(a.x, c.x) self.assertEqual(a.classvar, c.classvar) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_instantiate_generic(self): MyCount = Annotated[typing.Counter[T], "my decoration"] self.assertEqual(MyCount([4, 4, 5]), {4: 2, 5: 1}) self.assertEqual(MyCount[int]([4, 4, 5]), {4: 2, 5: 1}) + def test_instantiate_immutable(self): + class C: + def __setattr__(self, key, value): + raise Exception("should be ignored") + + A = Annotated[C, "a decoration"] + # gh-115165: This used to cause RuntimeError to be raised + # when we tried to set `__orig_class__` on the `C` instance + # returned by the `A()` call + self.assertIsInstance(A(), C) + def test_cannot_instantiate_forward(self): A = Annotated["int", (5, 6)] with self.assertRaises(TypeError): @@ -4774,23 +8512,45 @@ class C: A.x = 5 self.assertEqual(C.x, 5) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_special_form_containment(self): class C: classvar: Annotated[ClassVar[int], "a decoration"] = 4 const: Annotated[Final[int], "Const"] = 4 - self.assertEqual(get_type_hints(C, globals())['classvar'], ClassVar[int]) - self.assertEqual(get_type_hints(C, globals())['const'], Final[int]) + self.assertEqual(get_type_hints(C, globals())['classvar'], ClassVar[int]) + self.assertEqual(get_type_hints(C, globals())['const'], Final[int]) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_special_forms_nesting(self): + # These are uncommon types and are to ensure runtime + # is lax on validation. See gh-89547 for more context. + class CF: + x: ClassVar[Final[int]] + + class FC: + x: Final[ClassVar[int]] + + class ACF: + x: Annotated[ClassVar[Final[int]], "a decoration"] + + class CAF: + x: ClassVar[Annotated[Final[int], "a decoration"]] + + class AFC: + x: Annotated[Final[ClassVar[int]], "a decoration"] + + class FAC: + x: Final[Annotated[ClassVar[int], "a decoration"]] - def test_hash_eq(self): - self.assertEqual(len({Annotated[int, 4, 5], Annotated[int, 4, 5]}), 1) - self.assertNotEqual(Annotated[int, 4, 5], Annotated[int, 5, 4]) - self.assertNotEqual(Annotated[int, 4, 5], Annotated[str, 4, 5]) - self.assertNotEqual(Annotated[int, 4], Annotated[int, 4, 4]) - self.assertEqual( - {Annotated[int, 4, 5], Annotated[int, 4, 5], Annotated[T, 4, 5]}, - {Annotated[int, 4, 5], Annotated[T, 4, 5]} - ) + self.assertEqual(get_type_hints(CF, globals())['x'], ClassVar[Final[int]]) + self.assertEqual(get_type_hints(FC, globals())['x'], Final[ClassVar[int]]) + self.assertEqual(get_type_hints(ACF, globals())['x'], ClassVar[Final[int]]) + self.assertEqual(get_type_hints(CAF, globals())['x'], ClassVar[Final[int]]) + self.assertEqual(get_type_hints(AFC, globals())['x'], Final[ClassVar[int]]) + self.assertEqual(get_type_hints(FAC, globals())['x'], Final[ClassVar[int]]) def test_cannot_subclass(self): with self.assertRaisesRegex(TypeError, "Cannot subclass .*Annotated"): @@ -4809,6 +8569,8 @@ def test_too_few_type_args(self): with self.assertRaisesRegex(TypeError, 'at least two arguments'): Annotated[int] + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_pickle(self): samples = [typing.Any, typing.Union[int, str], typing.Optional[str], Tuple[int, ...], @@ -4839,6 +8601,8 @@ class _Annotated_test_G(Generic[T]): self.assertEqual(x.bar, 'abc') self.assertEqual(x.x, 1) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_subst(self): dec = "a decoration" dec2 = "another decoration" @@ -4868,6 +8632,124 @@ def test_subst(self): with self.assertRaises(TypeError): LI[None] + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_typevar_subst(self): + dec = "a decoration" + Ts = TypeVarTuple('Ts') + T = TypeVar('T') + T1 = TypeVar('T1') + T2 = TypeVar('T2') + + # A = Annotated[tuple[*Ts], dec] + self.assertEqual(A[int], Annotated[tuple[int], dec]) + self.assertEqual(A[str, int], Annotated[tuple[str, int], dec]) + with self.assertRaises(TypeError): + Annotated[*Ts, dec] + + B = Annotated[Tuple[Unpack[Ts]], dec] + self.assertEqual(B[int], Annotated[Tuple[int], dec]) + self.assertEqual(B[str, int], Annotated[Tuple[str, int], dec]) + with self.assertRaises(TypeError): + Annotated[Unpack[Ts], dec] + + C = Annotated[tuple[T, *Ts], dec] + self.assertEqual(C[int], Annotated[tuple[int], dec]) + self.assertEqual(C[int, str], Annotated[tuple[int, str], dec]) + self.assertEqual( + C[int, str, float], + Annotated[tuple[int, str, float], dec] + ) + with self.assertRaises(TypeError): + C[()] + + D = Annotated[Tuple[T, Unpack[Ts]], dec] + self.assertEqual(D[int], Annotated[Tuple[int], dec]) + self.assertEqual(D[int, str], Annotated[Tuple[int, str], dec]) + self.assertEqual( + D[int, str, float], + Annotated[Tuple[int, str, float], dec] + ) + with self.assertRaises(TypeError): + D[()] + + E = Annotated[tuple[*Ts, T], dec] + self.assertEqual(E[int], Annotated[tuple[int], dec]) + self.assertEqual(E[int, str], Annotated[tuple[int, str], dec]) + self.assertEqual( + E[int, str, float], + Annotated[tuple[int, str, float], dec] + ) + with self.assertRaises(TypeError): + E[()] + + F = Annotated[Tuple[Unpack[Ts], T], dec] + self.assertEqual(F[int], Annotated[Tuple[int], dec]) + self.assertEqual(F[int, str], Annotated[Tuple[int, str], dec]) + self.assertEqual( + F[int, str, float], + Annotated[Tuple[int, str, float], dec] + ) + with self.assertRaises(TypeError): + F[()] + + G = Annotated[tuple[T1, *Ts, T2], dec] + self.assertEqual(G[int, str], Annotated[tuple[int, str], dec]) + self.assertEqual( + G[int, str, float], + Annotated[tuple[int, str, float], dec] + ) + self.assertEqual( + G[int, str, bool, float], + Annotated[tuple[int, str, bool, float], dec] + ) + with self.assertRaises(TypeError): + G[int] + + H = Annotated[Tuple[T1, Unpack[Ts], T2], dec] + self.assertEqual(H[int, str], Annotated[Tuple[int, str], dec]) + self.assertEqual( + H[int, str, float], + Annotated[Tuple[int, str, float], dec] + ) + self.assertEqual( + H[int, str, bool, float], + Annotated[Tuple[int, str, bool, float], dec] + ) + with self.assertRaises(TypeError): + H[int] + + # Now let's try creating an alias from an alias. + + Ts2 = TypeVarTuple('Ts2') + T3 = TypeVar('T3') + T4 = TypeVar('T4') + + # G is Annotated[tuple[T1, *Ts, T2], dec]. + I = G[T3, *Ts2, T4] + J = G[T3, Unpack[Ts2], T4] + + for x, y in [ + (I, Annotated[tuple[T3, *Ts2, T4], dec]), + (J, Annotated[tuple[T3, Unpack[Ts2], T4], dec]), + (I[int, str], Annotated[tuple[int, str], dec]), + (J[int, str], Annotated[tuple[int, str], dec]), + (I[int, str, float], Annotated[tuple[int, str, float], dec]), + (J[int, str, float], Annotated[tuple[int, str, float], dec]), + (I[int, str, bool, float], + Annotated[tuple[int, str, bool, float], dec]), + (J[int, str, bool, float], + Annotated[tuple[int, str, bool, float], dec]), + ]: + self.assertEqual(x, y) + + with self.assertRaises(TypeError): + I[int] + with self.assertRaises(TypeError): + J[int] + + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_annotated_in_other_types(self): X = List[Annotated[T, 5]] self.assertEqual(X[int], List[Annotated[int, 5]]) @@ -4877,6 +8759,40 @@ class X(Annotated[int, (1, 10)]): ... self.assertEqual(X.__mro__, (X, int, object), "Annotated should be transparent.") + def test_annotated_cached_with_types(self): + class A(str): ... + class B(str): ... + + field_a1 = Annotated[str, A("X")] + field_a2 = Annotated[str, B("X")] + a1_metadata = field_a1.__metadata__[0] + a2_metadata = field_a2.__metadata__[0] + + self.assertIs(type(a1_metadata), A) + self.assertEqual(a1_metadata, A("X")) + self.assertIs(type(a2_metadata), B) + self.assertEqual(a2_metadata, B("X")) + self.assertIsNot(type(a1_metadata), type(a2_metadata)) + + field_b1 = Annotated[str, A("Y")] + field_b2 = Annotated[str, B("Y")] + b1_metadata = field_b1.__metadata__[0] + b2_metadata = field_b2.__metadata__[0] + + self.assertIs(type(b1_metadata), A) + self.assertEqual(b1_metadata, A("Y")) + self.assertIs(type(b2_metadata), B) + self.assertEqual(b2_metadata, B("Y")) + self.assertIsNot(type(b1_metadata), type(b2_metadata)) + + field_c1 = Annotated[int, 1] + field_c2 = Annotated[int, 1.0] + field_c3 = Annotated[int, True] + + self.assertIs(type(field_c1.__metadata__[0]), int) + self.assertIs(type(field_c2.__metadata__[0]), float) + self.assertIs(type(field_c3.__metadata__[0]), bool) + class TypeAliasTests(BaseTestCase): def test_canonical_usage_with_variable_annotation(self): @@ -4893,6 +8809,8 @@ def test_no_isinstance(self): with self.assertRaises(TypeError): isinstance(42, TypeAlias) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_stringized_usage(self): class A: a: "TypeAlias" @@ -4906,12 +8824,13 @@ def test_no_issubclass(self): issubclass(TypeAlias, Employee) def test_cannot_subclass(self): - with self.assertRaises(TypeError): + with self.assertRaisesRegex(TypeError, + r'Cannot subclass typing\.TypeAlias'): class C(TypeAlias): pass with self.assertRaises(TypeError): - class C(type(TypeAlias)): + class D(type(TypeAlias)): pass def test_repr(self): @@ -4922,12 +8841,27 @@ def test_cannot_subscript(self): TypeAlias[int] + class ParamSpecTests(BaseTestCase): + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_basic_plain(self): P = ParamSpec('P') self.assertEqual(P, P) self.assertIsInstance(P, ParamSpec) + self.assertEqual(P.__name__, 'P') + self.assertEqual(P.__module__, __name__) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_basic_with_exec(self): + ns = {} + exec('from typing import ParamSpec; P = ParamSpec("P")', ns, ns) + P = ns['P'] + self.assertIsInstance(P, ParamSpec) + self.assertEqual(P.__name__, 'P') + self.assertIs(P.__module__, None) # TODO: RUSTPYTHON @unittest.expectedFailure @@ -4948,6 +8882,8 @@ def test_valid_uses(self): self.assertEqual(C4.__args__, (P, T)) self.assertEqual(C4.__parameters__, (P, T)) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_args_kwargs(self): P = ParamSpec('P') P_2 = ParamSpec('P_2') @@ -4967,6 +8903,9 @@ def test_args_kwargs(self): self.assertEqual(repr(P.args), "P.args") self.assertEqual(repr(P.kwargs), "P.kwargs") + + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_stringized(self): P = ParamSpec('P') class C(Generic[P]): @@ -4979,6 +8918,8 @@ def foo(self, *args: "P.args", **kwargs: "P.kwargs"): gth(C.foo, globals(), locals()), {"args": P.args, "kwargs": P.kwargs} ) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_user_generics(self): T = TypeVar("T") P = ParamSpec("P") @@ -5033,6 +8974,8 @@ class Z(Generic[P]): with self.assertRaisesRegex(TypeError, "many arguments for"): Z[P_2, bool] + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_multiple_paramspecs_in_user_generics(self): P = ParamSpec("P") P2 = ParamSpec("P2") @@ -5047,33 +8990,221 @@ class X(Generic[P, P2]): self.assertEqual(G1.__args__, ((int, str), (bytes,))) self.assertEqual(G2.__args__, ((int,), (str, bytes))) + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_typevartuple_and_paramspecs_in_user_generics(self): + Ts = TypeVarTuple("Ts") + P = ParamSpec("P") + + # class X(Generic[*Ts, P]): + # f: Callable[P, int] + # g: Tuple[*Ts] + + G1 = X[int, [bytes]] + self.assertEqual(G1.__args__, (int, (bytes,))) + G2 = X[int, str, [bytes]] + self.assertEqual(G2.__args__, (int, str, (bytes,))) + G3 = X[[bytes]] + self.assertEqual(G3.__args__, ((bytes,),)) + G4 = X[[]] + self.assertEqual(G4.__args__, ((),)) + with self.assertRaises(TypeError): + X[()] + + # class Y(Generic[P, *Ts]): + # f: Callable[P, int] + # g: Tuple[*Ts] + + G1 = Y[[bytes], int] + self.assertEqual(G1.__args__, ((bytes,), int)) + G2 = Y[[bytes], int, str] + self.assertEqual(G2.__args__, ((bytes,), int, str)) + G3 = Y[[bytes]] + self.assertEqual(G3.__args__, ((bytes,),)) + G4 = Y[[]] + self.assertEqual(G4.__args__, ((),)) + with self.assertRaises(TypeError): + Y[()] + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_typevartuple_and_paramspecs_in_generic_aliases(self): + P = ParamSpec('P') + T = TypeVar('T') + Ts = TypeVarTuple('Ts') + + for C in Callable, collections.abc.Callable: + with self.subTest(generic=C): + # A = C[P, Tuple[*Ts]] + B = A[[int, str], bytes, float] + self.assertEqual(B.__args__, (int, str, Tuple[bytes, float])) + + class X(Generic[T, P]): + pass + + # A = X[Tuple[*Ts], P] + B = A[bytes, float, [int, str]] + self.assertEqual(B.__args__, (Tuple[bytes, float], (int, str,))) + + class Y(Generic[P, T]): + pass + + # A = Y[P, Tuple[*Ts]] + B = A[[int, str], bytes, float] + self.assertEqual(B.__args__, ((int, str,), Tuple[bytes, float])) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_var_substitution(self): + P = ParamSpec("P") + subst = P.__typing_subst__ + self.assertEqual(subst((int, str)), (int, str)) + self.assertEqual(subst([int, str]), (int, str)) + self.assertEqual(subst([None]), (type(None),)) + self.assertIs(subst(...), ...) + self.assertIs(subst(P), P) + self.assertEqual(subst(Concatenate[int, P]), Concatenate[int, P]) + + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_bad_var_substitution(self): T = TypeVar('T') P = ParamSpec('P') bad_args = (42, int, None, T, int|str, Union[int, str]) for arg in bad_args: with self.subTest(arg=arg): + with self.assertRaises(TypeError): + P.__typing_subst__(arg) with self.assertRaises(TypeError): typing.Callable[P, T][arg, str] with self.assertRaises(TypeError): collections.abc.Callable[P, T][arg, str] - def test_no_paramspec_in__parameters__(self): - # ParamSpec should not be found in __parameters__ - # of generics. Usages outside Callable, Concatenate - # and Generic are invalid. - T = TypeVar("T") - P = ParamSpec("P") - self.assertNotIn(P, List[P].__parameters__) - self.assertIn(T, Tuple[T, P].__parameters__) + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_type_var_subst_for_other_type_vars(self): + T = TypeVar('T') + T2 = TypeVar('T2') + P = ParamSpec('P') + P2 = ParamSpec('P2') + Ts = TypeVarTuple('Ts') + + class Base(Generic[P]): + pass - # Test for consistency with builtin generics. - self.assertNotIn(P, list[P].__parameters__) - self.assertIn(T, tuple[T, P].__parameters__) + A1 = Base[T] + self.assertEqual(A1.__parameters__, (T,)) + self.assertEqual(A1.__args__, ((T,),)) + self.assertEqual(A1[int], Base[int]) + + A2 = Base[[T]] + self.assertEqual(A2.__parameters__, (T,)) + self.assertEqual(A2.__args__, ((T,),)) + self.assertEqual(A2[int], Base[int]) + + A3 = Base[[int, T]] + self.assertEqual(A3.__parameters__, (T,)) + self.assertEqual(A3.__args__, ((int, T),)) + self.assertEqual(A3[str], Base[[int, str]]) + + A4 = Base[[T, int, T2]] + self.assertEqual(A4.__parameters__, (T, T2)) + self.assertEqual(A4.__args__, ((T, int, T2),)) + self.assertEqual(A4[str, bool], Base[[str, int, bool]]) + + A5 = Base[[*Ts, int]] + self.assertEqual(A5.__parameters__, (Ts,)) + self.assertEqual(A5.__args__, ((*Ts, int),)) + self.assertEqual(A5[str, bool], Base[[str, bool, int]]) + + A5_2 = Base[[int, *Ts]] + self.assertEqual(A5_2.__parameters__, (Ts,)) + self.assertEqual(A5_2.__args__, ((int, *Ts),)) + self.assertEqual(A5_2[str, bool], Base[[int, str, bool]]) + + A6 = Base[[T, *Ts]] + self.assertEqual(A6.__parameters__, (T, Ts)) + self.assertEqual(A6.__args__, ((T, *Ts),)) + self.assertEqual(A6[int, str, bool], Base[[int, str, bool]]) + + A7 = Base[[T, T]] + self.assertEqual(A7.__parameters__, (T,)) + self.assertEqual(A7.__args__, ((T, T),)) + self.assertEqual(A7[int], Base[[int, int]]) + + A8 = Base[[T, list[T]]] + self.assertEqual(A8.__parameters__, (T,)) + self.assertEqual(A8.__args__, ((T, list[T]),)) + self.assertEqual(A8[int], Base[[int, list[int]]]) + + # A9 = Base[[Tuple[*Ts], *Ts]] + # self.assertEqual(A9.__parameters__, (Ts,)) + # self.assertEqual(A9.__args__, ((Tuple[*Ts], *Ts),)) + # self.assertEqual(A9[int, str], Base[Tuple[int, str], int, str]) + + A10 = Base[P2] + self.assertEqual(A10.__parameters__, (P2,)) + self.assertEqual(A10.__args__, (P2,)) + self.assertEqual(A10[[int, str]], Base[[int, str]]) + + class DoubleP(Generic[P, P2]): + pass + + B1 = DoubleP[P, P2] + self.assertEqual(B1.__parameters__, (P, P2)) + self.assertEqual(B1.__args__, (P, P2)) + self.assertEqual(B1[[int, str], [bool]], DoubleP[[int, str], [bool]]) + self.assertEqual(B1[[], []], DoubleP[[], []]) + + B2 = DoubleP[[int, str], P2] + self.assertEqual(B2.__parameters__, (P2,)) + self.assertEqual(B2.__args__, ((int, str), P2)) + self.assertEqual(B2[[bool, bool]], DoubleP[[int, str], [bool, bool]]) + self.assertEqual(B2[[]], DoubleP[[int, str], []]) + + B3 = DoubleP[P, [bool, bool]] + self.assertEqual(B3.__parameters__, (P,)) + self.assertEqual(B3.__args__, (P, (bool, bool))) + self.assertEqual(B3[[int, str]], DoubleP[[int, str], [bool, bool]]) + self.assertEqual(B3[[]], DoubleP[[], [bool, bool]]) + + B4 = DoubleP[[T, int], [bool, T2]] + self.assertEqual(B4.__parameters__, (T, T2)) + self.assertEqual(B4.__args__, ((T, int), (bool, T2))) + self.assertEqual(B4[str, float], DoubleP[[str, int], [bool, float]]) + + B5 = DoubleP[[*Ts, int], [bool, T2]] + self.assertEqual(B5.__parameters__, (Ts, T2)) + self.assertEqual(B5.__args__, ((*Ts, int), (bool, T2))) + self.assertEqual(B5[str, bytes, float], + DoubleP[[str, bytes, int], [bool, float]]) + + B6 = DoubleP[[T, int], [bool, *Ts]] + self.assertEqual(B6.__parameters__, (T, Ts)) + self.assertEqual(B6.__args__, ((T, int), (bool, *Ts))) + self.assertEqual(B6[str, bytes, float], + DoubleP[[str, int], [bool, bytes, float]]) + + class PandT(Generic[P, T]): + pass + + C1 = PandT[P, T] + self.assertEqual(C1.__parameters__, (P, T)) + self.assertEqual(C1.__args__, (P, T)) + self.assertEqual(C1[[int, str], bool], PandT[[int, str], bool]) - self.assertNotIn(P, (list[P] | int).__parameters__) - self.assertIn(T, (tuple[T, P] | int).__parameters__) + C2 = PandT[[int, T], T] + self.assertEqual(C2.__parameters__, (T,)) + self.assertEqual(C2.__args__, ((int, T), T)) + self.assertEqual(C2[str], PandT[[int, str], str]) + C3 = PandT[[int, *Ts], T] + self.assertEqual(C3.__parameters__, (Ts, T)) + self.assertEqual(C3.__args__, ((int, *Ts), T)) + self.assertEqual(C3[str, bool, bytes], PandT[[int, str, bool], bytes]) + + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_paramspec_in_nested_generics(self): # Although ParamSpec should not be found in __parameters__ of most # generics, they probably should be found when nested in @@ -5092,6 +9223,8 @@ def test_paramspec_in_nested_generics(self): self.assertEqual(G2[[int, str], float], list[C]) self.assertEqual(G3[[int, str], float], list[C] | int) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_paramspec_gets_copied(self): # bpo-46581 P = ParamSpec('P') @@ -5113,6 +9246,27 @@ def test_paramspec_gets_copied(self): self.assertEqual(C2[Concatenate[str, P2]].__parameters__, (P2,)) self.assertEqual(C2[Concatenate[T, P2]].__parameters__, (T, P2)) + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_cannot_subclass(self): + with self.assertRaisesRegex(TypeError, NOT_A_BASE_TYPE % 'ParamSpec'): + class C(ParamSpec): pass + with self.assertRaisesRegex(TypeError, NOT_A_BASE_TYPE % 'ParamSpecArgs'): + class D(ParamSpecArgs): pass + with self.assertRaisesRegex(TypeError, NOT_A_BASE_TYPE % 'ParamSpecKwargs'): + class E(ParamSpecKwargs): pass + P = ParamSpec('P') + with self.assertRaisesRegex(TypeError, + CANNOT_SUBCLASS_INSTANCE % 'ParamSpec'): + class F(P): pass + with self.assertRaisesRegex(TypeError, + CANNOT_SUBCLASS_INSTANCE % 'ParamSpecArgs'): + class G(P.args): pass + with self.assertRaisesRegex(TypeError, + CANNOT_SUBCLASS_INSTANCE % 'ParamSpecKwargs'): + class H(P.kwargs): pass + + class ConcatenateTests(BaseTestCase): def test_basics(self): @@ -5121,6 +9275,17 @@ class MyClass: ... c = Concatenate[MyClass, P] self.assertNotEqual(c, Concatenate) + def test_dir(self): + P = ParamSpec('P') + dir_items = set(dir(Concatenate[int, P])) + for required_item in [ + '__args__', '__parameters__', '__origin__', + ]: + with self.subTest(required_item=required_item): + self.assertIn(required_item, dir_items) + + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_valid_uses(self): P = ParamSpec('P') T = TypeVar('T') @@ -5139,6 +9304,20 @@ def test_valid_uses(self): self.assertEqual(C4.__args__, (Concatenate[int, T, P], T)) self.assertEqual(C4.__parameters__, (T, P)) + def test_invalid_uses(self): + with self.assertRaisesRegex(TypeError, 'Concatenate of no types'): + Concatenate[()] + with self.assertRaisesRegex( + TypeError, + ( + 'The last parameter to Concatenate should be a ' + 'ParamSpec variable or ellipsis' + ), + ): + Concatenate[int] + + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_var_substitution(self): T = TypeVar('T') P = ParamSpec('P') @@ -5149,8 +9328,7 @@ def test_var_substitution(self): self.assertEqual(C[int, []], (int,)) self.assertEqual(C[int, Concatenate[str, P2]], Concatenate[int, str, P2]) - with self.assertRaises(TypeError): - C[int, ...] + self.assertEqual(C[int, ...], Concatenate[int, ...]) C = Concatenate[int, P] self.assertEqual(C[P2], Concatenate[int, P2]) @@ -5158,8 +9336,8 @@ def test_var_substitution(self): self.assertEqual(C[str, float], (int, str, float)) self.assertEqual(C[[]], (int,)) self.assertEqual(C[Concatenate[str, P2]], Concatenate[int, str, P2]) - with self.assertRaises(TypeError): - C[...] + self.assertEqual(C[...], Concatenate[int, ...]) + class TypeGuardTests(BaseTestCase): def test_basics(self): @@ -5168,6 +9346,11 @@ def test_basics(self): def foo(arg) -> TypeGuard[int]: ... self.assertEqual(gth(foo), {'return': TypeGuard[int]}) + with self.assertRaises(TypeError): + TypeGuard[int, str] + + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_repr(self): self.assertEqual(repr(TypeGuard), 'typing.TypeGuard') cv = TypeGuard[int] @@ -5178,11 +9361,19 @@ def test_repr(self): self.assertEqual(repr(cv), 'typing.TypeGuard[tuple[int]]') def test_cannot_subclass(self): - with self.assertRaises(TypeError): + with self.assertRaisesRegex(TypeError, CANNOT_SUBCLASS_TYPE): class C(type(TypeGuard)): pass - with self.assertRaises(TypeError): - class C(type(TypeGuard[int])): + with self.assertRaisesRegex(TypeError, CANNOT_SUBCLASS_TYPE): + class D(type(TypeGuard[int])): + pass + with self.assertRaisesRegex(TypeError, + r'Cannot subclass typing\.TypeGuard'): + class E(TypeGuard): + pass + with self.assertRaisesRegex(TypeError, + r'Cannot subclass typing\.TypeGuard\[int\]'): + class F(TypeGuard[int]): pass def test_cannot_init(self): @@ -5200,12 +9391,63 @@ def test_no_isinstance(self): issubclass(int, TypeGuard) +class TypeIsTests(BaseTestCase): + def test_basics(self): + TypeIs[int] # OK + + def foo(arg) -> TypeIs[int]: ... + self.assertEqual(gth(foo), {'return': TypeIs[int]}) + + with self.assertRaises(TypeError): + TypeIs[int, str] + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_repr(self): + self.assertEqual(repr(TypeIs), 'typing.TypeIs') + cv = TypeIs[int] + self.assertEqual(repr(cv), 'typing.TypeIs[int]') + cv = TypeIs[Employee] + self.assertEqual(repr(cv), 'typing.TypeIs[%s.Employee]' % __name__) + cv = TypeIs[tuple[int]] + self.assertEqual(repr(cv), 'typing.TypeIs[tuple[int]]') + + def test_cannot_subclass(self): + with self.assertRaisesRegex(TypeError, CANNOT_SUBCLASS_TYPE): + class C(type(TypeIs)): + pass + with self.assertRaisesRegex(TypeError, CANNOT_SUBCLASS_TYPE): + class D(type(TypeIs[int])): + pass + with self.assertRaisesRegex(TypeError, + r'Cannot subclass typing\.TypeIs'): + class E(TypeIs): + pass + with self.assertRaisesRegex(TypeError, + r'Cannot subclass typing\.TypeIs\[int\]'): + class F(TypeIs[int]): + pass + + def test_cannot_init(self): + with self.assertRaises(TypeError): + TypeIs() + with self.assertRaises(TypeError): + type(TypeIs)() + with self.assertRaises(TypeError): + type(TypeIs[Optional[int]])() + + def test_no_isinstance(self): + with self.assertRaises(TypeError): + isinstance(1, TypeIs[int]) + with self.assertRaises(TypeError): + issubclass(int, TypeIs) + + SpecialAttrsP = typing.ParamSpec('SpecialAttrsP') SpecialAttrsT = typing.TypeVar('SpecialAttrsT', int, float, complex) class SpecialAttrsTests(BaseTestCase): - # TODO: RUSTPYTHON @unittest.expectedFailure def test_special_attrs(self): @@ -5251,7 +9493,7 @@ def test_special_attrs(self): typing.ValuesView: 'ValuesView', # Subscribed ABC classes typing.AbstractSet[Any]: 'AbstractSet', - typing.AsyncContextManager[Any]: 'AsyncContextManager', + typing.AsyncContextManager[Any, Any]: 'AsyncContextManager', typing.AsyncGenerator[Any, Any]: 'AsyncGenerator', typing.AsyncIterable[Any]: 'AsyncIterable', typing.AsyncIterator[Any]: 'AsyncIterator', @@ -5261,7 +9503,7 @@ def test_special_attrs(self): typing.ChainMap[Any, Any]: 'ChainMap', typing.Collection[Any]: 'Collection', typing.Container[Any]: 'Container', - typing.ContextManager[Any]: 'ContextManager', + typing.ContextManager[Any, Any]: 'ContextManager', typing.Coroutine[Any, Any, Any]: 'Coroutine', typing.Counter[Any]: 'Counter', typing.DefaultDict[Any, Any]: 'DefaultDict', @@ -5297,13 +9539,17 @@ def test_special_attrs(self): typing.Literal: 'Literal', typing.NewType: 'NewType', typing.NoReturn: 'NoReturn', + typing.Never: 'Never', typing.Optional: 'Optional', typing.TypeAlias: 'TypeAlias', typing.TypeGuard: 'TypeGuard', + typing.TypeIs: 'TypeIs', typing.TypeVar: 'TypeVar', typing.Union: 'Union', + typing.Self: 'Self', # Subscribed special forms typing.Annotated[Any, "Annotation"]: 'Annotated', + typing.Annotated[int, 'Annotation']: 'Annotated', typing.ClassVar[Any]: 'ClassVar', typing.Concatenate[Any, SpecialAttrsP]: 'Concatenate', typing.Final[Any]: 'Final', @@ -5312,6 +9558,7 @@ def test_special_attrs(self): typing.Literal[True, 2]: 'Literal', typing.Optional[Any]: 'Optional', typing.TypeGuard[Any]: 'TypeGuard', + typing.TypeIs[Any]: 'TypeIs', typing.Union[Any]: 'Any', typing.Union[int, float]: 'Union', # Incompatible special forms (tested in test_special_attrs2) @@ -5345,7 +9592,7 @@ def test_special_attrs2(self): self.assertEqual(fr.__module__, 'typing') # Forward refs are currently unpicklable. for proto in range(pickle.HIGHEST_PROTOCOL + 1): - with self.assertRaises(TypeError) as exc: + with self.assertRaises(TypeError): pickle.dumps(fr, proto) self.assertEqual(SpecialAttrsTests.TypeName.__name__, 'TypeName') @@ -5385,15 +9632,168 @@ def test_special_attrs2(self): loaded = pickle.loads(s) self.assertIs(SpecialAttrsP, loaded) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_genericalias_dir(self): class Foo(Generic[T]): def bar(self): pass baz = 3 + __magic__ = 4 + # The class attributes of the original class should be visible even # in dir() of the GenericAlias. See bpo-45755. - self.assertIn('bar', dir(Foo[int])) - self.assertIn('baz', dir(Foo[int])) + dir_items = set(dir(Foo[int])) + for required_item in [ + 'bar', 'baz', + '__args__', '__parameters__', '__origin__', + ]: + with self.subTest(required_item=required_item): + self.assertIn(required_item, dir_items) + self.assertNotIn('__magic__', dir_items) + + +class RevealTypeTests(BaseTestCase): + def test_reveal_type(self): + obj = object() + with captured_stderr() as stderr: + self.assertIs(obj, reveal_type(obj)) + self.assertEqual(stderr.getvalue(), "Runtime type is 'object'\n") + + +class DataclassTransformTests(BaseTestCase): + def test_decorator(self): + def create_model(*, frozen: bool = False, kw_only: bool = True): + return lambda cls: cls + + decorated = dataclass_transform(kw_only_default=True, order_default=False)(create_model) + + class CustomerModel: + id: int + + self.assertIs(decorated, create_model) + self.assertEqual( + decorated.__dataclass_transform__, + { + "eq_default": True, + "order_default": False, + "kw_only_default": True, + "frozen_default": False, + "field_specifiers": (), + "kwargs": {}, + } + ) + self.assertIs( + decorated(frozen=True, kw_only=False)(CustomerModel), + CustomerModel + ) + + def test_base_class(self): + class ModelBase: + def __init_subclass__(cls, *, frozen: bool = False): ... + + Decorated = dataclass_transform( + eq_default=True, + order_default=True, + # Arbitrary unrecognized kwargs are accepted at runtime. + make_everything_awesome=True, + )(ModelBase) + + class CustomerModel(Decorated, frozen=True): + id: int + + self.assertIs(Decorated, ModelBase) + self.assertEqual( + Decorated.__dataclass_transform__, + { + "eq_default": True, + "order_default": True, + "kw_only_default": False, + "frozen_default": False, + "field_specifiers": (), + "kwargs": {"make_everything_awesome": True}, + } + ) + self.assertIsSubclass(CustomerModel, Decorated) + + def test_metaclass(self): + class Field: ... + + class ModelMeta(type): + def __new__( + cls, name, bases, namespace, *, init: bool = True, + ): + return super().__new__(cls, name, bases, namespace) + + Decorated = dataclass_transform( + order_default=True, frozen_default=True, field_specifiers=(Field,) + )(ModelMeta) + + class ModelBase(metaclass=Decorated): ... + + class CustomerModel(ModelBase, init=False): + id: int + + self.assertIs(Decorated, ModelMeta) + self.assertEqual( + Decorated.__dataclass_transform__, + { + "eq_default": True, + "order_default": True, + "kw_only_default": False, + "frozen_default": True, + "field_specifiers": (Field,), + "kwargs": {}, + } + ) + self.assertIsInstance(CustomerModel, Decorated) + + +class NoDefaultTests(BaseTestCase): + def test_pickling(self): + for proto in range(pickle.HIGHEST_PROTOCOL + 1): + s = pickle.dumps(NoDefault, proto) + loaded = pickle.loads(s) + self.assertIs(NoDefault, loaded) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_constructor(self): + self.assertIs(NoDefault, type(NoDefault)()) + with self.assertRaises(TypeError): + type(NoDefault)(1) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_repr(self): + self.assertEqual(repr(NoDefault), 'typing.NoDefault') + + @requires_docstrings + def test_doc(self): + self.assertIsInstance(NoDefault.__doc__, str) + + def test_class(self): + self.assertIs(NoDefault.__class__, type(NoDefault)) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_no_call(self): + with self.assertRaises(TypeError): + NoDefault() + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_no_attributes(self): + with self.assertRaises(AttributeError): + NoDefault.foo = 3 + with self.assertRaises(AttributeError): + NoDefault.foo + + # TypeError is consistent with the behavior of NoneType + with self.assertRaises(TypeError): + type(NoDefault).foo = 3 + with self.assertRaises(AttributeError): + type(NoDefault).foo class AllTests(BaseTestCase): @@ -5409,7 +9809,7 @@ def test_all(self): # Context managers. self.assertIn('ContextManager', a) self.assertIn('AsyncContextManager', a) - # Check that io and re are not exported. + # Check that former namespaces io and re are not exported. self.assertNotIn('io', a) self.assertNotIn('re', a) # Spot-check that stdlib modules aren't exported. @@ -5421,7 +9821,13 @@ def test_all(self): self.assertIn('SupportsBytes', a) self.assertIn('SupportsComplex', a) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_all_exported_names(self): + # ensure all dynamically created objects are actualised + for name in typing.__all__: + getattr(typing, name) + actual_all = set(typing.__all__) computed_all = { k for k, v in vars(typing).items() @@ -5429,10 +9835,6 @@ def test_all_exported_names(self): if k in actual_all or ( # avoid private names not k.startswith('_') and - # avoid things in the io / re typing submodules - k not in typing.io.__all__ and - k not in typing.re.__all__ and - k not in {'io', 're'} and # there's a few types and metaclasses that aren't exported not k.endswith(('Meta', '_contra', '_co')) and not k.upper() == k and @@ -5443,6 +9845,45 @@ def test_all_exported_names(self): self.assertSetEqual(computed_all, actual_all) +class TypeIterationTests(BaseTestCase): + _UNITERABLE_TYPES = ( + Any, + Union, + Union[str, int], + Union[str, T], + List, + Tuple, + Callable, + Callable[..., T], + Callable[[T], str], + Annotated, + Annotated[T, ''], + ) + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def test_cannot_iterate(self): + expected_error_regex = "object is not iterable" + for test_type in self._UNITERABLE_TYPES: + with self.subTest(type=test_type): + with self.assertRaisesRegex(TypeError, expected_error_regex): + iter(test_type) + with self.assertRaisesRegex(TypeError, expected_error_regex): + list(test_type) + with self.assertRaisesRegex(TypeError, expected_error_regex): + for _ in test_type: + pass + + def test_is_not_instance_of_iterable(self): + for type_to_test in self._UNITERABLE_TYPES: + self.assertNotIsInstance(type_to_test, collections.abc.Iterable) + + +def load_tests(loader, tests, pattern): + import doctest + tests.addTests(doctest.DocTestSuite(typing)) + return tests + if __name__ == '__main__': main() diff --git a/Lib/test/test_ucn.py b/Lib/test/test_ucn.py index 6d082a0942..f6d69540b9 100644 --- a/Lib/test/test_ucn.py +++ b/Lib/test/test_ucn.py @@ -102,8 +102,6 @@ def test_cjk_unified_ideographs(self): self.checkletter("CJK UNIFIED IDEOGRAPH-2B81D", "\U0002B81D") self.checkletter("CJK UNIFIED IDEOGRAPH-3134A", "\U0003134A") - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_bmp_characters(self): for code in range(0x10000): char = chr(code) diff --git a/Lib/test/test_unary.py b/Lib/test/test_unary.py index c3c17cc9f6..a45fbf6bd6 100644 --- a/Lib/test/test_unary.py +++ b/Lib/test/test_unary.py @@ -8,7 +8,6 @@ def test_negative(self): self.assertTrue(-2 == 0 - 2) self.assertEqual(-0, 0) self.assertEqual(--2, 2) - self.assertTrue(-2 == 0 - 2) self.assertTrue(-2.0 == 0 - 2.0) self.assertTrue(-2j == 0 - 2j) @@ -16,15 +15,13 @@ def test_positive(self): self.assertEqual(+2, 2) self.assertEqual(+0, 0) self.assertEqual(++2, 2) - self.assertEqual(+2, 2) self.assertEqual(+2.0, 2.0) self.assertEqual(+2j, 2j) def test_invert(self): - self.assertTrue(-2 == 0 - 2) - self.assertEqual(-0, 0) - self.assertEqual(--2, 2) - self.assertTrue(-2 == 0 - 2) + self.assertTrue(~2 == -(2+1)) + self.assertEqual(~0, -1) + self.assertEqual(~~2, 2) def test_no_overflow(self): nines = "9" * 32 diff --git a/Lib/test/test_unicode.py b/Lib/test/test_unicode.py index 17c9f01cd8..0eeb1ae936 100644 --- a/Lib/test/test_unicode.py +++ b/Lib/test/test_unicode.py @@ -608,8 +608,6 @@ def test_bytes_comparison(self): self.assertEqual('abc' == bytearray(b'abc'), False) self.assertEqual('abc' != bytearray(b'abc'), True) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_comparison(self): # Comparisons: self.assertEqual('abc', 'abc') @@ -721,8 +719,6 @@ def test_isspace(self): '\U0001F40D', '\U0001F46F']: self.assertFalse(ch.isspace(), '{!a} is not space.'.format(ch)) - # TODO: RUSTPYTHON - @unittest.expectedFailure @support.requires_resource('cpu') def test_isspace_invariant(self): for codepoint in range(sys.maxunicode + 1): @@ -822,18 +818,6 @@ def test_isidentifier(self): self.assertFalse("©".isidentifier()) self.assertFalse("0".isidentifier()) - @support.cpython_only - @support.requires_legacy_unicode_capi() - @unittest.skipIf(_testcapi is None, 'need _testcapi module') - def test_isidentifier_legacy(self): - u = '𝖀𝖓𝖎𝖈𝖔𝖉𝖊' - self.assertTrue(u.isidentifier()) - with warnings_helper.check_warnings(): - warnings.simplefilter('ignore', DeprecationWarning) - self.assertTrue(_testcapi.unicode_legacy_string(u).isidentifier()) - - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_isprintable(self): self.assertTrue("".isprintable()) self.assertTrue(" ".isprintable()) @@ -849,8 +833,6 @@ def test_isprintable(self): self.assertTrue('\U0001F46F'.isprintable()) self.assertFalse('\U000E0020'.isprintable()) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_surrogates(self): for s in ('a\uD800b\uDFFF', 'a\uDFFFb\uD800', 'a\uD800b\uDFFFa', 'a\uDFFFb\uD800a'): @@ -1829,8 +1811,6 @@ def test_codecs_utf7(self): 'ill-formed sequence'): b'+@'.decode('utf-7') - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_codecs_utf8(self): self.assertEqual(''.encode('utf-8'), b'') self.assertEqual('\u20ac'.encode('utf-8'), b'\xe2\x82\xac') @@ -2532,26 +2512,6 @@ def test_getnewargs(self): self.assertEqual(args[0], text) self.assertEqual(len(args), 1) - @support.cpython_only - @support.requires_legacy_unicode_capi() - @unittest.skipIf(_testcapi is None, 'need _testcapi module') - def test_resize(self): - for length in range(1, 100, 7): - # generate a fresh string (refcount=1) - text = 'a' * length + 'b' - - # fill wstr internal field - with self.assertWarns(DeprecationWarning): - abc = _testcapi.getargs_u(text) - self.assertEqual(abc, text) - - # resize text: wstr field must be cleared and then recomputed - text += 'c' - with self.assertWarns(DeprecationWarning): - abcdef = _testcapi.getargs_u(text) - self.assertNotEqual(abc, abcdef) - self.assertEqual(abcdef, text) - def test_compare(self): # Issue #17615 N = 10 diff --git a/Lib/test/test_unicode_identifiers.py b/Lib/test/test_unicode_identifiers.py index 9e611caf61..d7a0ece253 100644 --- a/Lib/test/test_unicode_identifiers.py +++ b/Lib/test/test_unicode_identifiers.py @@ -2,8 +2,6 @@ class PEP3131Test(unittest.TestCase): - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_valid(self): class T: ä = 1 @@ -15,8 +13,6 @@ class T: self.assertEqual(getattr(T, '\u87d2'), 3) self.assertEqual(getattr(T, 'x\U000E0100'), 4) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_non_bmp_normalized(self): 𝔘𝔫𝔦𝔠𝔬𝔡𝔢 = 1 self.assertIn("Unicode", dir()) diff --git a/Lib/test/test_unicodedata.py b/Lib/test/test_unicodedata.py index f5b4b6218e..c9e0b234ef 100644 --- a/Lib/test/test_unicodedata.py +++ b/Lib/test/test_unicodedata.py @@ -99,8 +99,6 @@ def test_function_checksum(self): result = h.hexdigest() self.assertEqual(result, self.expectedchecksum) - # TODO: RUSTPYTHON - @unittest.expectedFailure @requires_resource('cpu') def test_name_inverse_lookup(self): for i in range(sys.maxunicode + 1): @@ -326,8 +324,6 @@ def test_ucd_510(self): self.assertTrue("\u1d79".upper()=='\ua77d') self.assertTrue(".".upper()=='.') - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_bug_5828(self): self.assertEqual("\u1d79".lower(), "\u1d79") # Only U+0000 should have U+0000 as its upper/lower/titlecase variant @@ -347,8 +343,6 @@ def test_bug_4971(self): self.assertEqual("\u01c5".title(), "\u01c5") self.assertEqual("\u01c6".title(), "\u01c5") - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_linebreak_7643(self): for i in range(0x10000): lines = (chr(i) + 'A').splitlines() diff --git a/Lib/test/test_userstring.py b/Lib/test/test_userstring.py index c0017794e8..51b4f6041e 100644 --- a/Lib/test/test_userstring.py +++ b/Lib/test/test_userstring.py @@ -53,8 +53,6 @@ def __rmod__(self, other): str3 = ustr3('TEST') self.assertEqual(fmt2 % str3, 'value is TEST') - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_encode_default_args(self): self.checkequal(b'hello', 'hello', 'encode') # Check that encoding defaults to utf-8 @@ -62,8 +60,6 @@ def test_encode_default_args(self): # Check that errors defaults to 'strict' self.checkraises(UnicodeError, '\ud800', 'encode') - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_encode_explicit_none_args(self): self.checkequal(b'hello', 'hello', 'encode', None, None) # Check that encoding defaults to utf-8 diff --git a/Lib/test/test_uu.py b/Lib/test/test_uu.py deleted file mode 100644 index f71d877365..0000000000 --- a/Lib/test/test_uu.py +++ /dev/null @@ -1,258 +0,0 @@ -""" -Tests for uu module. -Nick Mathewson -""" - -import unittest -from test.support import os_helper - -import os -import stat -import sys -import uu -import io - -plaintext = b"The symbols on top of your keyboard are !@#$%^&*()_+|~\n" - -encodedtext = b"""\ -M5&AE('-Y;6)O;',@;VX@=&]P(&]F('EO=7(@:V5Y8F]A dcx, - 'chunk too big (%d>%d)' % (len(chunk), dcx)) + 'chunk too big (%d>%d)' % (len(chunk), dcx)) bufs.append(chunk) cb = dco.unconsumed_tail bufs.append(dco.flush()) @@ -431,7 +444,7 @@ def test_decompressmaxlen(self, flush=False): max_length = 1 + len(cb)//10 chunk = dco.decompress(cb, max_length) self.assertFalse(len(chunk) > max_length, - 'chunk too big (%d>%d)' % (len(chunk),max_length)) + 'chunk too big (%d>%d)' % (len(chunk),max_length)) bufs.append(chunk) cb = dco.unconsumed_tail if flush: @@ -440,15 +453,13 @@ def test_decompressmaxlen(self, flush=False): while chunk: chunk = dco.decompress(b'', max_length) self.assertFalse(len(chunk) > max_length, - 'chunk too big (%d>%d)' % (len(chunk),max_length)) + 'chunk too big (%d>%d)' % (len(chunk),max_length)) bufs.append(chunk) self.assertEqual(data, b''.join(bufs), 'Wrong data retrieved') def test_decompressmaxlenflush(self): self.test_decompressmaxlen(flush=True) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_maxlenmisc(self): # Misc tests of max_length dco = zlib.decompressobj() @@ -479,7 +490,7 @@ def test_clear_unconsumed_tail(self): ddata += dco.decompress(dco.unconsumed_tail) self.assertEqual(dco.unconsumed_tail, b"") - # TODO: RUSTPYTHON + # TODO: RUSTPYTHON: Z_BLOCK support in flate2 @unittest.expectedFailure def test_flushes(self): # Test flush() with the various options, using all the @@ -487,9 +498,8 @@ def test_flushes(self): sync_opt = ['Z_NO_FLUSH', 'Z_SYNC_FLUSH', 'Z_FULL_FLUSH', 'Z_PARTIAL_FLUSH'] - ver = tuple(int(v) for v in zlib.ZLIB_RUNTIME_VERSION.split('.')) # Z_BLOCK has a known failure prior to 1.2.5.3 - if ver >= (1, 2, 5, 3): + if ZLIB_RUNTIME_VERSION_TUPLE >= (1, 2, 5, 3): sync_opt.append('Z_BLOCK') sync_opt = [getattr(zlib, opt) for opt in sync_opt @@ -498,20 +508,16 @@ def test_flushes(self): for sync in sync_opt: for level in range(10): - try: + with self.subTest(sync=sync, level=level): obj = zlib.compressobj( level ) a = obj.compress( data[:3000] ) b = obj.flush( sync ) c = obj.compress( data[3000:] ) d = obj.flush() - except: - print("Error for flush mode={}, level={}" - .format(sync, level)) - raise - self.assertEqual(zlib.decompress(b''.join([a,b,c,d])), - data, ("Decompress failed: flush " - "mode=%i, level=%i") % (sync, level)) - del obj + self.assertEqual(zlib.decompress(b''.join([a,b,c,d])), + data, ("Decompress failed: flush " + "mode=%i, level=%i") % (sync, level)) + del obj @unittest.skipUnless(hasattr(zlib, 'Z_SYNC_FLUSH'), 'requires zlib.Z_SYNC_FLUSH') @@ -526,18 +532,7 @@ def test_odd_flush(self): # Try 17K of data # generate random data stream - try: - # In 2.3 and later, WichmannHill is the RNG of the bug report - gen = random.WichmannHill() - except AttributeError: - try: - # 2.2 called it Random - gen = random.Random() - except AttributeError: - # others might simply have a single RNG - gen = random - gen.seed(1) - data = gen.randbytes(17 * 1024) + data = random.randbytes(17 * 1024) # compress, sync-flush, and decompress first = co.compress(data) @@ -557,8 +552,6 @@ def test_empty_flush(self): dco = zlib.decompressobj() self.assertEqual(dco.flush(), b"") # Returns nothing - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_dictionary(self): h = HAMLET_SCENE # Build a simulated dictionary out of the words in HAMLET. @@ -575,8 +568,6 @@ def test_dictionary(self): dco = zlib.decompressobj() self.assertRaises(zlib.error, dco.decompress, cd) - # TODO: RUSTPYTHON - @unittest.expectedFailure def test_dictionary_streaming(self): # This simulates the reuse of a compressor object for compressing # several separate data streams. @@ -642,15 +633,13 @@ def test_decompress_unused_data(self): self.assertEqual(dco.unconsumed_tail, b'') else: data += dco.decompress( - dco.unconsumed_tail + x[i : i + step], maxlen) + dco.unconsumed_tail + x[i : i + step], maxlen) data += dco.flush() self.assertTrue(dco.eof) self.assertEqual(data, source) self.assertEqual(dco.unconsumed_tail, b'') self.assertEqual(dco.unused_data, remainder) - # TODO: RUSTPYTHON - @unittest.expectedFailure # issue27164 def test_decompress_raw_with_dictionary(self): zdict = b'abcdefghijklmnopqrstuvwxyz' @@ -826,20 +815,11 @@ def test_large_unconsumed_tail(self, size): finally: comp = uncomp = data = None - # TODO: RUSTPYTHON + # TODO: RUSTPYTHON: wbits=0 support in flate2 @unittest.expectedFailure def test_wbits(self): # wbits=0 only supported since zlib v1.2.3.5 - # Register "1.2.3" as "1.2.3.0" - # or "1.2.0-linux","1.2.0.f","1.2.0.f-linux" - v = zlib.ZLIB_RUNTIME_VERSION.split('-', 1)[0].split('.') - if len(v) < 4: - v.append('0') - elif not v[-1].isnumeric(): - v[-1] = '0' - - v = tuple(map(int, v)) - supports_wbits_0 = v >= (1, 2, 3, 5) + supports_wbits_0 = ZLIB_RUNTIME_VERSION_TUPLE >= (1, 2, 3, 5) co = zlib.compressobj(level=1, wbits=15) zlib15 = co.compress(HAMLET_SCENE) + co.flush() @@ -965,6 +945,178 @@ def choose_lines(source, number, seed=None, generator=random): Farewell. """ +class ZlibDecompressorTest(unittest.TestCase): + # Test adopted from test_bz2.py + TEXT = HAMLET_SCENE + DATA = zlib.compress(HAMLET_SCENE) + BAD_DATA = b"Not a valid deflate block" + BIG_TEXT = DATA * ((128 * 1024 // len(DATA)) + 1) + BIG_DATA = zlib.compress(BIG_TEXT) + + def test_Constructor(self): + self.assertRaises(TypeError, zlib._ZlibDecompressor, "ASDA") + self.assertRaises(TypeError, zlib._ZlibDecompressor, -15, "notbytes") + self.assertRaises(TypeError, zlib._ZlibDecompressor, -15, b"bytes", 5) + + def testDecompress(self): + zlibd = zlib._ZlibDecompressor() + self.assertRaises(TypeError, zlibd.decompress) + text = zlibd.decompress(self.DATA) + self.assertEqual(text, self.TEXT) + + def testDecompressChunks10(self): + zlibd = zlib._ZlibDecompressor() + text = b'' + n = 0 + while True: + str = self.DATA[n*10:(n+1)*10] + if not str: + break + text += zlibd.decompress(str) + n += 1 + self.assertEqual(text, self.TEXT) + + def testDecompressUnusedData(self): + zlibd = zlib._ZlibDecompressor() + unused_data = b"this is unused data" + text = zlibd.decompress(self.DATA+unused_data) + self.assertEqual(text, self.TEXT) + self.assertEqual(zlibd.unused_data, unused_data) + + def testEOFError(self): + zlibd = zlib._ZlibDecompressor() + text = zlibd.decompress(self.DATA) + self.assertRaises(EOFError, zlibd.decompress, b"anything") + self.assertRaises(EOFError, zlibd.decompress, b"") + + @support.skip_if_pgo_task + @bigmemtest(size=_4G + 100, memuse=3.3) + def testDecompress4G(self, size): + # "Test zlib._ZlibDecompressor.decompress() with >4GiB input" + blocksize = min(10 * 1024 * 1024, size) + block = random.randbytes(blocksize) + try: + data = block * ((size-1) // blocksize + 1) + compressed = zlib.compress(data) + zlibd = zlib._ZlibDecompressor() + decompressed = zlibd.decompress(compressed) + self.assertTrue(decompressed == data) + finally: + data = None + compressed = None + decompressed = None + + # TODO: RUSTPYTHON + @unittest.expectedFailure + def testPickle(self): + for proto in range(pickle.HIGHEST_PROTOCOL + 1): + with self.assertRaises(TypeError): + pickle.dumps(zlib._ZlibDecompressor(), proto) + + def testDecompressorChunksMaxsize(self): + zlibd = zlib._ZlibDecompressor() + max_length = 100 + out = [] + + # Feed some input + len_ = len(self.BIG_DATA) - 64 + out.append(zlibd.decompress(self.BIG_DATA[:len_], + max_length=max_length)) + self.assertFalse(zlibd.needs_input) + self.assertEqual(len(out[-1]), max_length) + + # Retrieve more data without providing more input + out.append(zlibd.decompress(b'', max_length=max_length)) + self.assertFalse(zlibd.needs_input) + self.assertEqual(len(out[-1]), max_length) + + # Retrieve more data while providing more input + out.append(zlibd.decompress(self.BIG_DATA[len_:], + max_length=max_length)) + self.assertLessEqual(len(out[-1]), max_length) + + # Retrieve remaining uncompressed data + while not zlibd.eof: + out.append(zlibd.decompress(b'', max_length=max_length)) + self.assertLessEqual(len(out[-1]), max_length) + + out = b"".join(out) + self.assertEqual(out, self.BIG_TEXT) + self.assertEqual(zlibd.unused_data, b"") + + def test_decompressor_inputbuf_1(self): + # Test reusing input buffer after moving existing + # contents to beginning + zlibd = zlib._ZlibDecompressor() + out = [] + + # Create input buffer and fill it + self.assertEqual(zlibd.decompress(self.DATA[:100], + max_length=0), b'') + + # Retrieve some results, freeing capacity at beginning + # of input buffer + out.append(zlibd.decompress(b'', 2)) + + # Add more data that fits into input buffer after + # moving existing data to beginning + out.append(zlibd.decompress(self.DATA[100:105], 15)) + + # Decompress rest of data + out.append(zlibd.decompress(self.DATA[105:])) + self.assertEqual(b''.join(out), self.TEXT) + + def test_decompressor_inputbuf_2(self): + # Test reusing input buffer by appending data at the + # end right away + zlibd = zlib._ZlibDecompressor() + out = [] + + # Create input buffer and empty it + self.assertEqual(zlibd.decompress(self.DATA[:200], + max_length=0), b'') + out.append(zlibd.decompress(b'')) + + # Fill buffer with new data + out.append(zlibd.decompress(self.DATA[200:280], 2)) + + # Append some more data, not enough to require resize + out.append(zlibd.decompress(self.DATA[280:300], 2)) + + # Decompress rest of data + out.append(zlibd.decompress(self.DATA[300:])) + self.assertEqual(b''.join(out), self.TEXT) + + def test_decompressor_inputbuf_3(self): + # Test reusing input buffer after extending it + + zlibd = zlib._ZlibDecompressor() + out = [] + + # Create almost full input buffer + out.append(zlibd.decompress(self.DATA[:200], 5)) + + # Add even more data to it, requiring resize + out.append(zlibd.decompress(self.DATA[200:300], 5)) + + # Decompress rest of data + out.append(zlibd.decompress(self.DATA[300:])) + self.assertEqual(b''.join(out), self.TEXT) + + def test_failure(self): + zlibd = zlib._ZlibDecompressor() + self.assertRaises(Exception, zlibd.decompress, self.BAD_DATA * 30) + # Previously, a second call could crash due to internal inconsistency + self.assertRaises(Exception, zlibd.decompress, self.BAD_DATA * 30) + + @support.refcount_test + def test_refleaks_in___init__(self): + gettotalrefcount = support.get_attribute(sys, 'gettotalrefcount') + zlibd = zlib._ZlibDecompressor() + refs_before = gettotalrefcount() + for i in range(100): + zlibd.__init__() + self.assertAlmostEqual(gettotalrefcount() - refs_before, 0, delta=10) class CustomInt: def __index__(self): diff --git a/Lib/test/test_zoneinfo/test_zoneinfo.py b/Lib/test/test_zoneinfo/test_zoneinfo.py index 8414721555..e05bd046e8 100644 --- a/Lib/test/test_zoneinfo/test_zoneinfo.py +++ b/Lib/test/test_zoneinfo/test_zoneinfo.py @@ -1728,6 +1728,8 @@ def test_env_variable_relative_paths(self): with self.subTest("filtered", path_var=path_var): self.assertSequenceEqual(tzpath, expected_paths) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_env_variable_relative_paths_warning_location(self): path_var = "path/to/somewhere" @@ -1822,6 +1824,8 @@ def test_getattr_error(self): with self.assertRaises(AttributeError): self.module.NOATTRIBUTE + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_dir_contains_all(self): """dir(self.module) should at least contain everything in __all__.""" module_all_set = set(self.module.__all__) @@ -1925,12 +1929,16 @@ class ExtensionBuiltTest(unittest.TestCase): rely on these tests as an indication of stable properties of these classes. """ + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_cache_location(self): # The pure Python version stores caches on attributes, but the C # extension stores them in C globals (at least for now) self.assertFalse(hasattr(c_zoneinfo.ZoneInfo, "_weak_cache")) self.assertTrue(hasattr(py_zoneinfo.ZoneInfo, "_weak_cache")) + # TODO: RUSTPYTHON + @unittest.expectedFailure def test_gc_tracked(self): import gc diff --git a/Lib/test/typinganndata/_typed_dict_helper.py b/Lib/test/typinganndata/_typed_dict_helper.py new file mode 100644 index 0000000000..9df0ede7d4 --- /dev/null +++ b/Lib/test/typinganndata/_typed_dict_helper.py @@ -0,0 +1,30 @@ +"""Used to test `get_type_hints()` on a cross-module inherited `TypedDict` class + +This script uses future annotations to postpone a type that won't be available +on the module inheriting from to `Foo`. The subclass in the other module should +look something like this: + + class Bar(_typed_dict_helper.Foo, total=False): + b: int + +In addition, it uses multiple levels of Annotated to test the interaction +between the __future__ import, Annotated, and Required. +""" + +from __future__ import annotations + +from typing import Annotated, Generic, Optional, Required, TypedDict, TypeVar + + +OptionalIntType = Optional[int] + +class Foo(TypedDict): + a: OptionalIntType + +T = TypeVar("T") + +class FooGeneric(TypedDict, Generic[T]): + a: Optional[T] + +class VeryAnnotated(TypedDict, total=False): + a: Annotated[Annotated[Annotated[Required[int], "a"], "b"], "c"] diff --git a/Lib/test/typinganndata/ann_module695.py b/Lib/test/typinganndata/ann_module695.py new file mode 100644 index 0000000000..b6f3b06bd5 --- /dev/null +++ b/Lib/test/typinganndata/ann_module695.py @@ -0,0 +1,72 @@ +from __future__ import annotations +from typing import Callable + + +class A[T, *Ts, **P]: + x: T + y: tuple[*Ts] + z: Callable[P, str] + + +class B[T, *Ts, **P]: + T = int + Ts = str + P = bytes + x: T + y: Ts + z: P + + +Eggs = int +Spam = str + + +class C[Eggs, **Spam]: + x: Eggs + y: Spam + + +def generic_function[T, *Ts, **P]( + x: T, *y: *Ts, z: P.args, zz: P.kwargs +) -> None: ... + + +def generic_function_2[Eggs, **Spam](x: Eggs, y: Spam): pass + + +class D: + Foo = int + Bar = str + + def generic_method[Foo, **Bar]( + self, x: Foo, y: Bar + ) -> None: ... + + def generic_method_2[Eggs, **Spam](self, x: Eggs, y: Spam): pass + + +def nested(): + from types import SimpleNamespace + from typing import get_type_hints + + Eggs = bytes + Spam = memoryview + + + class E[Eggs, **Spam]: + x: Eggs + y: Spam + + def generic_method[Eggs, **Spam](self, x: Eggs, y: Spam): pass + + + def generic_function[Eggs, **Spam](x: Eggs, y: Spam): pass + + + return SimpleNamespace( + E=E, + hints_for_E=get_type_hints(E), + hints_for_E_meth=get_type_hints(E.generic_method), + generic_func=generic_function, + hints_for_generic_func=get_type_hints(generic_function) + ) diff --git a/Lib/test/typinganndata/mod_generics_cache.py b/Lib/test/typinganndata/mod_generics_cache.py new file mode 100644 index 0000000000..62deea9859 --- /dev/null +++ b/Lib/test/typinganndata/mod_generics_cache.py @@ -0,0 +1,26 @@ +"""Module for testing the behavior of generics across different modules.""" + +from typing import TypeVar, Generic, Optional, TypeAliasType + +# TODO: RUSTPYTHON + +# default_a: Optional['A'] = None +# default_b: Optional['B'] = None + +# T = TypeVar('T') + + +# class A(Generic[T]): +# some_b: 'B' + + +# class B(Generic[T]): +# class A(Generic[T]): +# pass + +# my_inner_a1: 'B.A' +# my_inner_a2: A +# my_outer_a: 'A' # unless somebody calls get_type_hints with localns=B.__dict__ + +# type Alias = int +# OldStyle = TypeAliasType("OldStyle", int) diff --git a/Lib/timeit.py b/Lib/timeit.py index f323e65572..258dedccd0 100755 --- a/Lib/timeit.py +++ b/Lib/timeit.py @@ -50,9 +50,9 @@ """ import gc +import itertools import sys import time -import itertools __all__ = ["Timer", "timeit", "repeat", "default_timer"] @@ -77,9 +77,11 @@ def inner(_it, _timer{init}): return _t1 - _t0 """ + def reindent(src, indent): """Helper to reindent a multi-line statement.""" - return src.replace("\n", "\n" + " "*indent) + return src.replace("\n", "\n" + " " * indent) + class Timer: """Class for timing execution speed of small code snippets. @@ -166,7 +168,7 @@ def timeit(self, number=default_number): To be precise, this executes the setup statement once, and then returns the time it takes to execute the main statement - a number of times, as a float measured in seconds. The + a number of times, as float seconds if using the default timer. The argument is the number of times through the loop, defaulting to one million. The main statement, the setup statement and the timer function to be used are passed to the constructor. @@ -230,16 +232,19 @@ def autorange(self, callback=None): return (number, time_taken) i *= 10 + def timeit(stmt="pass", setup="pass", timer=default_timer, number=default_number, globals=None): """Convenience function to create Timer object and call timeit method.""" return Timer(stmt, setup, timer, globals).timeit(number) + def repeat(stmt="pass", setup="pass", timer=default_timer, repeat=default_repeat, number=default_number, globals=None): """Convenience function to create Timer object and call repeat method.""" return Timer(stmt, setup, timer, globals).repeat(repeat, number) + def main(args=None, *, _wrap_timer=None): """Main program, used when run as a script. @@ -261,10 +266,9 @@ def main(args=None, *, _wrap_timer=None): args = sys.argv[1:] import getopt try: - opts, args = getopt.getopt(args, "n:u:s:r:tcpvh", + opts, args = getopt.getopt(args, "n:u:s:r:pvh", ["number=", "setup=", "repeat=", - "time", "clock", "process", - "verbose", "unit=", "help"]) + "process", "verbose", "unit=", "help"]) except getopt.error as err: print(err) print("use -h/--help for command line help") @@ -272,7 +276,7 @@ def main(args=None, *, _wrap_timer=None): timer = default_timer stmt = "\n".join(args) or "pass" - number = 0 # auto-determine + number = 0 # auto-determine setup = [] repeat = default_repeat verbose = 0 @@ -289,7 +293,7 @@ def main(args=None, *, _wrap_timer=None): time_unit = a else: print("Unrecognized unit. Please select nsec, usec, msec, or sec.", - file=sys.stderr) + file=sys.stderr) return 2 if o in ("-r", "--repeat"): repeat = int(a) @@ -323,7 +327,7 @@ def callback(number, time_taken): msg = "{num} loop{s} -> {secs:.{prec}g} secs" plural = (number != 1) print(msg.format(num=number, s='s' if plural else '', - secs=time_taken, prec=precision)) + secs=time_taken, prec=precision)) try: number, _ = t.autorange(callback) except: @@ -374,5 +378,6 @@ def format_time(dt): UserWarning, '', 0) return None + if __name__ == "__main__": sys.exit(main()) diff --git a/Lib/tkinter/__init__.py b/Lib/tkinter/__init__.py new file mode 100644 index 0000000000..df3b936ccd --- /dev/null +++ b/Lib/tkinter/__init__.py @@ -0,0 +1,4986 @@ +"""Wrapper functions for Tcl/Tk. + +Tkinter provides classes which allow the display, positioning and +control of widgets. Toplevel widgets are Tk and Toplevel. Other +widgets are Frame, Label, Entry, Text, Canvas, Button, Radiobutton, +Checkbutton, Scale, Listbox, Scrollbar, OptionMenu, Spinbox +LabelFrame and PanedWindow. + +Properties of the widgets are specified with keyword arguments. +Keyword arguments have the same name as the corresponding resource +under Tk. + +Widgets are positioned with one of the geometry managers Place, Pack +or Grid. These managers can be called with methods place, pack, grid +available in every Widget. + +Actions are bound to events by resources (e.g. keyword argument +command) or with the method bind. + +Example (Hello, World): +import tkinter +from tkinter.constants import * +tk = tkinter.Tk() +frame = tkinter.Frame(tk, relief=RIDGE, borderwidth=2) +frame.pack(fill=BOTH,expand=1) +label = tkinter.Label(frame, text="Hello, World") +label.pack(fill=X, expand=1) +button = tkinter.Button(frame,text="Exit",command=tk.destroy) +button.pack(side=BOTTOM) +tk.mainloop() +""" + +import collections +import enum +import sys +import types + +import _tkinter # If this fails your Python may not be configured for Tk +TclError = _tkinter.TclError +from tkinter.constants import * +import re + +wantobjects = 1 +_debug = False # set to True to print executed Tcl/Tk commands + +TkVersion = float(_tkinter.TK_VERSION) +TclVersion = float(_tkinter.TCL_VERSION) + +READABLE = _tkinter.READABLE +WRITABLE = _tkinter.WRITABLE +EXCEPTION = _tkinter.EXCEPTION + + +_magic_re = re.compile(r'([\\{}])') +_space_re = re.compile(r'([\s])', re.ASCII) + + +def _join(value): + """Internal function.""" + return ' '.join(map(_stringify, value)) + + +def _stringify(value): + """Internal function.""" + if isinstance(value, (list, tuple)): + if len(value) == 1: + value = _stringify(value[0]) + if _magic_re.search(value): + value = '{%s}' % value + else: + value = '{%s}' % _join(value) + else: + if isinstance(value, bytes): + value = str(value, 'latin1') + else: + value = str(value) + if not value: + value = '{}' + elif _magic_re.search(value): + # add '\' before special characters and spaces + value = _magic_re.sub(r'\\\1', value) + value = value.replace('\n', r'\n') + value = _space_re.sub(r'\\\1', value) + if value[0] == '"': + value = '\\' + value + elif value[0] == '"' or _space_re.search(value): + value = '{%s}' % value + return value + + +def _flatten(seq): + """Internal function.""" + res = () + for item in seq: + if isinstance(item, (tuple, list)): + res = res + _flatten(item) + elif item is not None: + res = res + (item,) + return res + + +try: _flatten = _tkinter._flatten +except AttributeError: pass + + +def _cnfmerge(cnfs): + """Internal function.""" + if isinstance(cnfs, dict): + return cnfs + elif isinstance(cnfs, (type(None), str)): + return cnfs + else: + cnf = {} + for c in _flatten(cnfs): + try: + cnf.update(c) + except (AttributeError, TypeError) as msg: + print("_cnfmerge: fallback due to:", msg) + for k, v in c.items(): + cnf[k] = v + return cnf + + +try: _cnfmerge = _tkinter._cnfmerge +except AttributeError: pass + + +def _splitdict(tk, v, cut_minus=True, conv=None): + """Return a properly formatted dict built from Tcl list pairs. + + If cut_minus is True, the supposed '-' prefix will be removed from + keys. If conv is specified, it is used to convert values. + + Tcl list is expected to contain an even number of elements. + """ + t = tk.splitlist(v) + if len(t) % 2: + raise RuntimeError('Tcl list representing a dict is expected ' + 'to contain an even number of elements') + it = iter(t) + dict = {} + for key, value in zip(it, it): + key = str(key) + if cut_minus and key[0] == '-': + key = key[1:] + if conv: + value = conv(value) + dict[key] = value + return dict + +class _VersionInfoType(collections.namedtuple('_VersionInfoType', + ('major', 'minor', 'micro', 'releaselevel', 'serial'))): + def __str__(self): + if self.releaselevel == 'final': + return f'{self.major}.{self.minor}.{self.micro}' + else: + return f'{self.major}.{self.minor}{self.releaselevel[0]}{self.serial}' + +def _parse_version(version): + import re + m = re.fullmatch(r'(\d+)\.(\d+)([ab.])(\d+)', version) + major, minor, releaselevel, serial = m.groups() + major, minor, serial = int(major), int(minor), int(serial) + if releaselevel == '.': + micro = serial + serial = 0 + releaselevel = 'final' + else: + micro = 0 + releaselevel = {'a': 'alpha', 'b': 'beta'}[releaselevel] + return _VersionInfoType(major, minor, micro, releaselevel, serial) + + +@enum._simple_enum(enum.StrEnum) +class EventType: + KeyPress = '2' + Key = KeyPress + KeyRelease = '3' + ButtonPress = '4' + Button = ButtonPress + ButtonRelease = '5' + Motion = '6' + Enter = '7' + Leave = '8' + FocusIn = '9' + FocusOut = '10' + Keymap = '11' # undocumented + Expose = '12' + GraphicsExpose = '13' # undocumented + NoExpose = '14' # undocumented + Visibility = '15' + Create = '16' + Destroy = '17' + Unmap = '18' + Map = '19' + MapRequest = '20' + Reparent = '21' + Configure = '22' + ConfigureRequest = '23' + Gravity = '24' + ResizeRequest = '25' + Circulate = '26' + CirculateRequest = '27' + Property = '28' + SelectionClear = '29' # undocumented + SelectionRequest = '30' # undocumented + Selection = '31' # undocumented + Colormap = '32' + ClientMessage = '33' # undocumented + Mapping = '34' # undocumented + VirtualEvent = '35' # undocumented + Activate = '36' + Deactivate = '37' + MouseWheel = '38' + + +class Event: + """Container for the properties of an event. + + Instances of this type are generated if one of the following events occurs: + + KeyPress, KeyRelease - for keyboard events + ButtonPress, ButtonRelease, Motion, Enter, Leave, MouseWheel - for mouse events + Visibility, Unmap, Map, Expose, FocusIn, FocusOut, Circulate, + Colormap, Gravity, Reparent, Property, Destroy, Activate, + Deactivate - for window events. + + If a callback function for one of these events is registered + using bind, bind_all, bind_class, or tag_bind, the callback is + called with an Event as first argument. It will have the + following attributes (in braces are the event types for which + the attribute is valid): + + serial - serial number of event + num - mouse button pressed (ButtonPress, ButtonRelease) + focus - whether the window has the focus (Enter, Leave) + height - height of the exposed window (Configure, Expose) + width - width of the exposed window (Configure, Expose) + keycode - keycode of the pressed key (KeyPress, KeyRelease) + state - state of the event as a number (ButtonPress, ButtonRelease, + Enter, KeyPress, KeyRelease, + Leave, Motion) + state - state as a string (Visibility) + time - when the event occurred + x - x-position of the mouse + y - y-position of the mouse + x_root - x-position of the mouse on the screen + (ButtonPress, ButtonRelease, KeyPress, KeyRelease, Motion) + y_root - y-position of the mouse on the screen + (ButtonPress, ButtonRelease, KeyPress, KeyRelease, Motion) + char - pressed character (KeyPress, KeyRelease) + send_event - see X/Windows documentation + keysym - keysym of the event as a string (KeyPress, KeyRelease) + keysym_num - keysym of the event as a number (KeyPress, KeyRelease) + type - type of the event as a number + widget - widget in which the event occurred + delta - delta of wheel movement (MouseWheel) + """ + + def __repr__(self): + attrs = {k: v for k, v in self.__dict__.items() if v != '??'} + if not self.char: + del attrs['char'] + elif self.char != '??': + attrs['char'] = repr(self.char) + if not getattr(self, 'send_event', True): + del attrs['send_event'] + if self.state == 0: + del attrs['state'] + elif isinstance(self.state, int): + state = self.state + mods = ('Shift', 'Lock', 'Control', + 'Mod1', 'Mod2', 'Mod3', 'Mod4', 'Mod5', + 'Button1', 'Button2', 'Button3', 'Button4', 'Button5') + s = [] + for i, n in enumerate(mods): + if state & (1 << i): + s.append(n) + state = state & ~((1<< len(mods)) - 1) + if state or not s: + s.append(hex(state)) + attrs['state'] = '|'.join(s) + if self.delta == 0: + del attrs['delta'] + # widget usually is known + # serial and time are not very interesting + # keysym_num duplicates keysym + # x_root and y_root mostly duplicate x and y + keys = ('send_event', + 'state', 'keysym', 'keycode', 'char', + 'num', 'delta', 'focus', + 'x', 'y', 'width', 'height') + return '<%s event%s>' % ( + getattr(self.type, 'name', self.type), + ''.join(' %s=%s' % (k, attrs[k]) for k in keys if k in attrs) + ) + + +_support_default_root = True +_default_root = None + + +def NoDefaultRoot(): + """Inhibit setting of default root window. + + Call this function to inhibit that the first instance of + Tk is used for windows without an explicit parent window. + """ + global _support_default_root, _default_root + _support_default_root = False + # Delete, so any use of _default_root will immediately raise an exception. + # Rebind before deletion, so repeated calls will not fail. + _default_root = None + del _default_root + + +def _get_default_root(what=None): + if not _support_default_root: + raise RuntimeError("No master specified and tkinter is " + "configured to not support default root") + if _default_root is None: + if what: + raise RuntimeError(f"Too early to {what}: no default root window") + root = Tk() + assert _default_root is root + return _default_root + + +def _get_temp_root(): + global _support_default_root + if not _support_default_root: + raise RuntimeError("No master specified and tkinter is " + "configured to not support default root") + root = _default_root + if root is None: + assert _support_default_root + _support_default_root = False + root = Tk() + _support_default_root = True + assert _default_root is None + root.withdraw() + root._temporary = True + return root + + +def _destroy_temp_root(master): + if getattr(master, '_temporary', False): + try: + master.destroy() + except TclError: + pass + + +def _tkerror(err): + """Internal function.""" + pass + + +def _exit(code=0): + """Internal function. Calling it will raise the exception SystemExit.""" + try: + code = int(code) + except ValueError: + pass + raise SystemExit(code) + + +_varnum = 0 + + +class Variable: + """Class to define value holders for e.g. buttons. + + Subclasses StringVar, IntVar, DoubleVar, BooleanVar are specializations + that constrain the type of the value returned from get().""" + _default = "" + _tk = None + _tclCommands = None + + def __init__(self, master=None, value=None, name=None): + """Construct a variable + + MASTER can be given as master widget. + VALUE is an optional value (defaults to "") + NAME is an optional Tcl name (defaults to PY_VARnum). + + If NAME matches an existing variable and VALUE is omitted + then the existing value is retained. + """ + # check for type of NAME parameter to override weird error message + # raised from Modules/_tkinter.c:SetVar like: + # TypeError: setvar() takes exactly 3 arguments (2 given) + if name is not None and not isinstance(name, str): + raise TypeError("name must be a string") + global _varnum + if master is None: + master = _get_default_root('create variable') + self._root = master._root() + self._tk = master.tk + if name: + self._name = name + else: + self._name = 'PY_VAR' + repr(_varnum) + _varnum += 1 + if value is not None: + self.initialize(value) + elif not self._tk.getboolean(self._tk.call("info", "exists", self._name)): + self.initialize(self._default) + + def __del__(self): + """Unset the variable in Tcl.""" + if self._tk is None: + return + if self._tk.getboolean(self._tk.call("info", "exists", self._name)): + self._tk.globalunsetvar(self._name) + if self._tclCommands is not None: + for name in self._tclCommands: + self._tk.deletecommand(name) + self._tclCommands = None + + def __str__(self): + """Return the name of the variable in Tcl.""" + return self._name + + def set(self, value): + """Set the variable to VALUE.""" + return self._tk.globalsetvar(self._name, value) + + initialize = set + + def get(self): + """Return value of variable.""" + return self._tk.globalgetvar(self._name) + + def _register(self, callback): + f = CallWrapper(callback, None, self._root).__call__ + cbname = repr(id(f)) + try: + callback = callback.__func__ + except AttributeError: + pass + try: + cbname = cbname + callback.__name__ + except AttributeError: + pass + self._tk.createcommand(cbname, f) + if self._tclCommands is None: + self._tclCommands = [] + self._tclCommands.append(cbname) + return cbname + + def trace_add(self, mode, callback): + """Define a trace callback for the variable. + + Mode is one of "read", "write", "unset", or a list or tuple of + such strings. + Callback must be a function which is called when the variable is + read, written or unset. + + Return the name of the callback. + """ + cbname = self._register(callback) + self._tk.call('trace', 'add', 'variable', + self._name, mode, (cbname,)) + return cbname + + def trace_remove(self, mode, cbname): + """Delete the trace callback for a variable. + + Mode is one of "read", "write", "unset" or a list or tuple of + such strings. Must be same as were specified in trace_add(). + cbname is the name of the callback returned from trace_add(). + """ + self._tk.call('trace', 'remove', 'variable', + self._name, mode, cbname) + for m, ca in self.trace_info(): + if self._tk.splitlist(ca)[0] == cbname: + break + else: + self._tk.deletecommand(cbname) + try: + self._tclCommands.remove(cbname) + except ValueError: + pass + + def trace_info(self): + """Return all trace callback information.""" + splitlist = self._tk.splitlist + return [(splitlist(k), v) for k, v in map(splitlist, + splitlist(self._tk.call('trace', 'info', 'variable', self._name)))] + + def trace_variable(self, mode, callback): + """Define a trace callback for the variable. + + MODE is one of "r", "w", "u" for read, write, undefine. + CALLBACK must be a function which is called when + the variable is read, written or undefined. + + Return the name of the callback. + + This deprecated method wraps a deprecated Tcl method that will + likely be removed in the future. Use trace_add() instead. + """ + # TODO: Add deprecation warning + cbname = self._register(callback) + self._tk.call("trace", "variable", self._name, mode, cbname) + return cbname + + trace = trace_variable + + def trace_vdelete(self, mode, cbname): + """Delete the trace callback for a variable. + + MODE is one of "r", "w", "u" for read, write, undefine. + CBNAME is the name of the callback returned from trace_variable or trace. + + This deprecated method wraps a deprecated Tcl method that will + likely be removed in the future. Use trace_remove() instead. + """ + # TODO: Add deprecation warning + self._tk.call("trace", "vdelete", self._name, mode, cbname) + cbname = self._tk.splitlist(cbname)[0] + for m, ca in self.trace_info(): + if self._tk.splitlist(ca)[0] == cbname: + break + else: + self._tk.deletecommand(cbname) + try: + self._tclCommands.remove(cbname) + except ValueError: + pass + + def trace_vinfo(self): + """Return all trace callback information. + + This deprecated method wraps a deprecated Tcl method that will + likely be removed in the future. Use trace_info() instead. + """ + # TODO: Add deprecation warning + return [self._tk.splitlist(x) for x in self._tk.splitlist( + self._tk.call("trace", "vinfo", self._name))] + + def __eq__(self, other): + if not isinstance(other, Variable): + return NotImplemented + return (self._name == other._name + and self.__class__.__name__ == other.__class__.__name__ + and self._tk == other._tk) + + +class StringVar(Variable): + """Value holder for strings variables.""" + _default = "" + + def __init__(self, master=None, value=None, name=None): + """Construct a string variable. + + MASTER can be given as master widget. + VALUE is an optional value (defaults to "") + NAME is an optional Tcl name (defaults to PY_VARnum). + + If NAME matches an existing variable and VALUE is omitted + then the existing value is retained. + """ + Variable.__init__(self, master, value, name) + + def get(self): + """Return value of variable as string.""" + value = self._tk.globalgetvar(self._name) + if isinstance(value, str): + return value + return str(value) + + +class IntVar(Variable): + """Value holder for integer variables.""" + _default = 0 + + def __init__(self, master=None, value=None, name=None): + """Construct an integer variable. + + MASTER can be given as master widget. + VALUE is an optional value (defaults to 0) + NAME is an optional Tcl name (defaults to PY_VARnum). + + If NAME matches an existing variable and VALUE is omitted + then the existing value is retained. + """ + Variable.__init__(self, master, value, name) + + def get(self): + """Return the value of the variable as an integer.""" + value = self._tk.globalgetvar(self._name) + try: + return self._tk.getint(value) + except (TypeError, TclError): + return int(self._tk.getdouble(value)) + + +class DoubleVar(Variable): + """Value holder for float variables.""" + _default = 0.0 + + def __init__(self, master=None, value=None, name=None): + """Construct a float variable. + + MASTER can be given as master widget. + VALUE is an optional value (defaults to 0.0) + NAME is an optional Tcl name (defaults to PY_VARnum). + + If NAME matches an existing variable and VALUE is omitted + then the existing value is retained. + """ + Variable.__init__(self, master, value, name) + + def get(self): + """Return the value of the variable as a float.""" + return self._tk.getdouble(self._tk.globalgetvar(self._name)) + + +class BooleanVar(Variable): + """Value holder for boolean variables.""" + _default = False + + def __init__(self, master=None, value=None, name=None): + """Construct a boolean variable. + + MASTER can be given as master widget. + VALUE is an optional value (defaults to False) + NAME is an optional Tcl name (defaults to PY_VARnum). + + If NAME matches an existing variable and VALUE is omitted + then the existing value is retained. + """ + Variable.__init__(self, master, value, name) + + def set(self, value): + """Set the variable to VALUE.""" + return self._tk.globalsetvar(self._name, self._tk.getboolean(value)) + + initialize = set + + def get(self): + """Return the value of the variable as a bool.""" + try: + return self._tk.getboolean(self._tk.globalgetvar(self._name)) + except TclError: + raise ValueError("invalid literal for getboolean()") + + +def mainloop(n=0): + """Run the main loop of Tcl.""" + _get_default_root('run the main loop').tk.mainloop(n) + + +getint = int + +getdouble = float + + +def getboolean(s): + """Convert Tcl object to True or False.""" + try: + return _get_default_root('use getboolean()').tk.getboolean(s) + except TclError: + raise ValueError("invalid literal for getboolean()") + + +# Methods defined on both toplevel and interior widgets + +class Misc: + """Internal class. + + Base class which defines methods common for interior widgets.""" + + # used for generating child widget names + _last_child_ids = None + + # XXX font command? + _tclCommands = None + + def destroy(self): + """Internal function. + + Delete all Tcl commands created for + this widget in the Tcl interpreter.""" + if self._tclCommands is not None: + for name in self._tclCommands: + self.tk.deletecommand(name) + self._tclCommands = None + + def deletecommand(self, name): + """Internal function. + + Delete the Tcl command provided in NAME.""" + self.tk.deletecommand(name) + try: + self._tclCommands.remove(name) + except ValueError: + pass + + def tk_strictMotif(self, boolean=None): + """Set Tcl internal variable, whether the look and feel + should adhere to Motif. + + A parameter of 1 means adhere to Motif (e.g. no color + change if mouse passes over slider). + Returns the set value.""" + return self.tk.getboolean(self.tk.call( + 'set', 'tk_strictMotif', boolean)) + + def tk_bisque(self): + """Change the color scheme to light brown as used in Tk 3.6 and before.""" + self.tk.call('tk_bisque') + + def tk_setPalette(self, *args, **kw): + """Set a new color scheme for all widget elements. + + A single color as argument will cause that all colors of Tk + widget elements are derived from this. + Alternatively several keyword parameters and its associated + colors can be given. The following keywords are valid: + activeBackground, foreground, selectColor, + activeForeground, highlightBackground, selectBackground, + background, highlightColor, selectForeground, + disabledForeground, insertBackground, troughColor.""" + self.tk.call(('tk_setPalette',) + + _flatten(args) + _flatten(list(kw.items()))) + + def wait_variable(self, name='PY_VAR'): + """Wait until the variable is modified. + + A parameter of type IntVar, StringVar, DoubleVar or + BooleanVar must be given.""" + self.tk.call('tkwait', 'variable', name) + waitvar = wait_variable # XXX b/w compat + + def wait_window(self, window=None): + """Wait until a WIDGET is destroyed. + + If no parameter is given self is used.""" + if window is None: + window = self + self.tk.call('tkwait', 'window', window._w) + + def wait_visibility(self, window=None): + """Wait until the visibility of a WIDGET changes + (e.g. it appears). + + If no parameter is given self is used.""" + if window is None: + window = self + self.tk.call('tkwait', 'visibility', window._w) + + def setvar(self, name='PY_VAR', value='1'): + """Set Tcl variable NAME to VALUE.""" + self.tk.setvar(name, value) + + def getvar(self, name='PY_VAR'): + """Return value of Tcl variable NAME.""" + return self.tk.getvar(name) + + def getint(self, s): + try: + return self.tk.getint(s) + except TclError as exc: + raise ValueError(str(exc)) + + def getdouble(self, s): + try: + return self.tk.getdouble(s) + except TclError as exc: + raise ValueError(str(exc)) + + def getboolean(self, s): + """Return a boolean value for Tcl boolean values true and false given as parameter.""" + try: + return self.tk.getboolean(s) + except TclError: + raise ValueError("invalid literal for getboolean()") + + def focus_set(self): + """Direct input focus to this widget. + + If the application currently does not have the focus + this widget will get the focus if the application gets + the focus through the window manager.""" + self.tk.call('focus', self._w) + focus = focus_set # XXX b/w compat? + + def focus_force(self): + """Direct input focus to this widget even if the + application does not have the focus. Use with + caution!""" + self.tk.call('focus', '-force', self._w) + + def focus_get(self): + """Return the widget which has currently the focus in the + application. + + Use focus_displayof to allow working with several + displays. Return None if application does not have + the focus.""" + name = self.tk.call('focus') + if name == 'none' or not name: return None + return self._nametowidget(name) + + def focus_displayof(self): + """Return the widget which has currently the focus on the + display where this widget is located. + + Return None if the application does not have the focus.""" + name = self.tk.call('focus', '-displayof', self._w) + if name == 'none' or not name: return None + return self._nametowidget(name) + + def focus_lastfor(self): + """Return the widget which would have the focus if top level + for this widget gets the focus from the window manager.""" + name = self.tk.call('focus', '-lastfor', self._w) + if name == 'none' or not name: return None + return self._nametowidget(name) + + def tk_focusFollowsMouse(self): + """The widget under mouse will get automatically focus. Can not + be disabled easily.""" + self.tk.call('tk_focusFollowsMouse') + + def tk_focusNext(self): + """Return the next widget in the focus order which follows + widget which has currently the focus. + + The focus order first goes to the next child, then to + the children of the child recursively and then to the + next sibling which is higher in the stacking order. A + widget is omitted if it has the takefocus resource set + to 0.""" + name = self.tk.call('tk_focusNext', self._w) + if not name: return None + return self._nametowidget(name) + + def tk_focusPrev(self): + """Return previous widget in the focus order. See tk_focusNext for details.""" + name = self.tk.call('tk_focusPrev', self._w) + if not name: return None + return self._nametowidget(name) + + def after(self, ms, func=None, *args): + """Call function once after given time. + + MS specifies the time in milliseconds. FUNC gives the + function which shall be called. Additional parameters + are given as parameters to the function call. Return + identifier to cancel scheduling with after_cancel.""" + if func is None: + # I'd rather use time.sleep(ms*0.001) + self.tk.call('after', ms) + return None + else: + def callit(): + try: + func(*args) + finally: + try: + self.deletecommand(name) + except TclError: + pass + try: + callit.__name__ = func.__name__ + except AttributeError: + # Required for callable classes (bpo-44404) + callit.__name__ = type(func).__name__ + name = self._register(callit) + return self.tk.call('after', ms, name) + + def after_idle(self, func, *args): + """Call FUNC once if the Tcl main loop has no event to + process. + + Return an identifier to cancel the scheduling with + after_cancel.""" + return self.after('idle', func, *args) + + def after_cancel(self, id): + """Cancel scheduling of function identified with ID. + + Identifier returned by after or after_idle must be + given as first parameter. + """ + if not id: + raise ValueError('id must be a valid identifier returned from ' + 'after or after_idle') + try: + data = self.tk.call('after', 'info', id) + script = self.tk.splitlist(data)[0] + self.deletecommand(script) + except TclError: + pass + self.tk.call('after', 'cancel', id) + + def after_info(self, id=None): + """Return information about existing event handlers. + + With no argument, return a tuple of the identifiers for all existing + event handlers created by the after and after_idle commands for this + interpreter. If id is supplied, it specifies an existing handler; id + must have been the return value from some previous call to after or + after_idle and it must not have triggered yet or been canceled. If the + id doesn't exist, a TclError is raised. Otherwise, the return value is + a tuple containing (script, type) where script is a reference to the + function to be called by the event handler and type is either 'idle' + or 'timer' to indicate what kind of event handler it is. + """ + return self.tk.splitlist(self.tk.call('after', 'info', id)) + + def bell(self, displayof=0): + """Ring a display's bell.""" + self.tk.call(('bell',) + self._displayof(displayof)) + + def tk_busy_cget(self, option): + """Return the value of busy configuration option. + + The widget must have been previously made busy by + tk_busy_hold(). Option may have any of the values accepted by + tk_busy_hold(). + """ + return self.tk.call('tk', 'busy', 'cget', self._w, '-'+option) + busy_cget = tk_busy_cget + + def tk_busy_configure(self, cnf=None, **kw): + """Query or modify the busy configuration options. + + The widget must have been previously made busy by + tk_busy_hold(). Options may have any of the values accepted by + tk_busy_hold(). + + Please note that the option database is referenced by the widget + name or class. For example, if a Frame widget with name "frame" + is to be made busy, the busy cursor can be specified for it by + either call: + + w.option_add('*frame.busyCursor', 'gumby') + w.option_add('*Frame.BusyCursor', 'gumby') + """ + if kw: + cnf = _cnfmerge((cnf, kw)) + elif cnf: + cnf = _cnfmerge(cnf) + if cnf is None: + return self._getconfigure( + 'tk', 'busy', 'configure', self._w) + if isinstance(cnf, str): + return self._getconfigure1( + 'tk', 'busy', 'configure', self._w, '-'+cnf) + self.tk.call('tk', 'busy', 'configure', self._w, *self._options(cnf)) + busy_config = busy_configure = tk_busy_config = tk_busy_configure + + def tk_busy_current(self, pattern=None): + """Return a list of widgets that are currently busy. + + If a pattern is given, only busy widgets whose path names match + a pattern are returned. + """ + return [self._nametowidget(x) for x in + self.tk.splitlist(self.tk.call( + 'tk', 'busy', 'current', pattern))] + busy_current = tk_busy_current + + def tk_busy_forget(self): + """Make this widget no longer busy. + + User events will again be received by the widget. + """ + self.tk.call('tk', 'busy', 'forget', self._w) + busy_forget = tk_busy_forget + + def tk_busy_hold(self, **kw): + """Make this widget appear busy. + + The specified widget and its descendants will be blocked from + user interactions. Normally update() should be called + immediately afterward to insure that the hold operation is in + effect before the application starts its processing. + + The only supported configuration option is: + + cursor: the cursor to be displayed when the widget is made + busy. + """ + self.tk.call('tk', 'busy', 'hold', self._w, *self._options(kw)) + busy = busy_hold = tk_busy = tk_busy_hold + + def tk_busy_status(self): + """Return True if the widget is busy, False otherwise.""" + return self.tk.getboolean(self.tk.call( + 'tk', 'busy', 'status', self._w)) + busy_status = tk_busy_status + + # Clipboard handling: + def clipboard_get(self, **kw): + """Retrieve data from the clipboard on window's display. + + The window keyword defaults to the root window of the Tkinter + application. + + The type keyword specifies the form in which the data is + to be returned and should be an atom name such as STRING + or FILE_NAME. Type defaults to STRING, except on X11, where the default + is to try UTF8_STRING and fall back to STRING. + + This command is equivalent to: + + selection_get(CLIPBOARD) + """ + if 'type' not in kw and self._windowingsystem == 'x11': + try: + kw['type'] = 'UTF8_STRING' + return self.tk.call(('clipboard', 'get') + self._options(kw)) + except TclError: + del kw['type'] + return self.tk.call(('clipboard', 'get') + self._options(kw)) + + def clipboard_clear(self, **kw): + """Clear the data in the Tk clipboard. + + A widget specified for the optional displayof keyword + argument specifies the target display.""" + if 'displayof' not in kw: kw['displayof'] = self._w + self.tk.call(('clipboard', 'clear') + self._options(kw)) + + def clipboard_append(self, string, **kw): + """Append STRING to the Tk clipboard. + + A widget specified at the optional displayof keyword + argument specifies the target display. The clipboard + can be retrieved with selection_get.""" + if 'displayof' not in kw: kw['displayof'] = self._w + self.tk.call(('clipboard', 'append') + self._options(kw) + + ('--', string)) + # XXX grab current w/o window argument + + def grab_current(self): + """Return widget which has currently the grab in this application + or None.""" + name = self.tk.call('grab', 'current', self._w) + if not name: return None + return self._nametowidget(name) + + def grab_release(self): + """Release grab for this widget if currently set.""" + self.tk.call('grab', 'release', self._w) + + def grab_set(self): + """Set grab for this widget. + + A grab directs all events to this and descendant + widgets in the application.""" + self.tk.call('grab', 'set', self._w) + + def grab_set_global(self): + """Set global grab for this widget. + + A global grab directs all events to this and + descendant widgets on the display. Use with caution - + other applications do not get events anymore.""" + self.tk.call('grab', 'set', '-global', self._w) + + def grab_status(self): + """Return None, "local" or "global" if this widget has + no, a local or a global grab.""" + status = self.tk.call('grab', 'status', self._w) + if status == 'none': status = None + return status + + def option_add(self, pattern, value, priority = None): + """Set a VALUE (second parameter) for an option + PATTERN (first parameter). + + An optional third parameter gives the numeric priority + (defaults to 80).""" + self.tk.call('option', 'add', pattern, value, priority) + + def option_clear(self): + """Clear the option database. + + It will be reloaded if option_add is called.""" + self.tk.call('option', 'clear') + + def option_get(self, name, className): + """Return the value for an option NAME for this widget + with CLASSNAME. + + Values with higher priority override lower values.""" + return self.tk.call('option', 'get', self._w, name, className) + + def option_readfile(self, fileName, priority = None): + """Read file FILENAME into the option database. + + An optional second parameter gives the numeric + priority.""" + self.tk.call('option', 'readfile', fileName, priority) + + def selection_clear(self, **kw): + """Clear the current X selection.""" + if 'displayof' not in kw: kw['displayof'] = self._w + self.tk.call(('selection', 'clear') + self._options(kw)) + + def selection_get(self, **kw): + """Return the contents of the current X selection. + + A keyword parameter selection specifies the name of + the selection and defaults to PRIMARY. A keyword + parameter displayof specifies a widget on the display + to use. A keyword parameter type specifies the form of data to be + fetched, defaulting to STRING except on X11, where UTF8_STRING is tried + before STRING.""" + if 'displayof' not in kw: kw['displayof'] = self._w + if 'type' not in kw and self._windowingsystem == 'x11': + try: + kw['type'] = 'UTF8_STRING' + return self.tk.call(('selection', 'get') + self._options(kw)) + except TclError: + del kw['type'] + return self.tk.call(('selection', 'get') + self._options(kw)) + + def selection_handle(self, command, **kw): + """Specify a function COMMAND to call if the X + selection owned by this widget is queried by another + application. + + This function must return the contents of the + selection. The function will be called with the + arguments OFFSET and LENGTH which allows the chunking + of very long selections. The following keyword + parameters can be provided: + selection - name of the selection (default PRIMARY), + type - type of the selection (e.g. STRING, FILE_NAME).""" + name = self._register(command) + self.tk.call(('selection', 'handle') + self._options(kw) + + (self._w, name)) + + def selection_own(self, **kw): + """Become owner of X selection. + + A keyword parameter selection specifies the name of + the selection (default PRIMARY).""" + self.tk.call(('selection', 'own') + + self._options(kw) + (self._w,)) + + def selection_own_get(self, **kw): + """Return owner of X selection. + + The following keyword parameter can + be provided: + selection - name of the selection (default PRIMARY), + type - type of the selection (e.g. STRING, FILE_NAME).""" + if 'displayof' not in kw: kw['displayof'] = self._w + name = self.tk.call(('selection', 'own') + self._options(kw)) + if not name: return None + return self._nametowidget(name) + + def send(self, interp, cmd, *args): + """Send Tcl command CMD to different interpreter INTERP to be executed.""" + return self.tk.call(('send', interp, cmd) + args) + + def lower(self, belowThis=None): + """Lower this widget in the stacking order.""" + self.tk.call('lower', self._w, belowThis) + + def tkraise(self, aboveThis=None): + """Raise this widget in the stacking order.""" + self.tk.call('raise', self._w, aboveThis) + + lift = tkraise + + def info_patchlevel(self): + """Returns the exact version of the Tcl library.""" + patchlevel = self.tk.call('info', 'patchlevel') + return _parse_version(patchlevel) + + def winfo_atom(self, name, displayof=0): + """Return integer which represents atom NAME.""" + args = ('winfo', 'atom') + self._displayof(displayof) + (name,) + return self.tk.getint(self.tk.call(args)) + + def winfo_atomname(self, id, displayof=0): + """Return name of atom with identifier ID.""" + args = ('winfo', 'atomname') \ + + self._displayof(displayof) + (id,) + return self.tk.call(args) + + def winfo_cells(self): + """Return number of cells in the colormap for this widget.""" + return self.tk.getint( + self.tk.call('winfo', 'cells', self._w)) + + def winfo_children(self): + """Return a list of all widgets which are children of this widget.""" + result = [] + for child in self.tk.splitlist( + self.tk.call('winfo', 'children', self._w)): + try: + # Tcl sometimes returns extra windows, e.g. for + # menus; those need to be skipped + result.append(self._nametowidget(child)) + except KeyError: + pass + return result + + def winfo_class(self): + """Return window class name of this widget.""" + return self.tk.call('winfo', 'class', self._w) + + def winfo_colormapfull(self): + """Return True if at the last color request the colormap was full.""" + return self.tk.getboolean( + self.tk.call('winfo', 'colormapfull', self._w)) + + def winfo_containing(self, rootX, rootY, displayof=0): + """Return the widget which is at the root coordinates ROOTX, ROOTY.""" + args = ('winfo', 'containing') \ + + self._displayof(displayof) + (rootX, rootY) + name = self.tk.call(args) + if not name: return None + return self._nametowidget(name) + + def winfo_depth(self): + """Return the number of bits per pixel.""" + return self.tk.getint(self.tk.call('winfo', 'depth', self._w)) + + def winfo_exists(self): + """Return true if this widget exists.""" + return self.tk.getint( + self.tk.call('winfo', 'exists', self._w)) + + def winfo_fpixels(self, number): + """Return the number of pixels for the given distance NUMBER + (e.g. "3c") as float.""" + return self.tk.getdouble(self.tk.call( + 'winfo', 'fpixels', self._w, number)) + + def winfo_geometry(self): + """Return geometry string for this widget in the form "widthxheight+X+Y".""" + return self.tk.call('winfo', 'geometry', self._w) + + def winfo_height(self): + """Return height of this widget.""" + return self.tk.getint( + self.tk.call('winfo', 'height', self._w)) + + def winfo_id(self): + """Return identifier ID for this widget.""" + return int(self.tk.call('winfo', 'id', self._w), 0) + + def winfo_interps(self, displayof=0): + """Return the name of all Tcl interpreters for this display.""" + args = ('winfo', 'interps') + self._displayof(displayof) + return self.tk.splitlist(self.tk.call(args)) + + def winfo_ismapped(self): + """Return true if this widget is mapped.""" + return self.tk.getint( + self.tk.call('winfo', 'ismapped', self._w)) + + def winfo_manager(self): + """Return the window manager name for this widget.""" + return self.tk.call('winfo', 'manager', self._w) + + def winfo_name(self): + """Return the name of this widget.""" + return self.tk.call('winfo', 'name', self._w) + + def winfo_parent(self): + """Return the name of the parent of this widget.""" + return self.tk.call('winfo', 'parent', self._w) + + def winfo_pathname(self, id, displayof=0): + """Return the pathname of the widget given by ID.""" + if isinstance(id, int): + id = hex(id) + args = ('winfo', 'pathname') \ + + self._displayof(displayof) + (id,) + return self.tk.call(args) + + def winfo_pixels(self, number): + """Rounded integer value of winfo_fpixels.""" + return self.tk.getint( + self.tk.call('winfo', 'pixels', self._w, number)) + + def winfo_pointerx(self): + """Return the x coordinate of the pointer on the root window.""" + return self.tk.getint( + self.tk.call('winfo', 'pointerx', self._w)) + + def winfo_pointerxy(self): + """Return a tuple of x and y coordinates of the pointer on the root window.""" + return self._getints( + self.tk.call('winfo', 'pointerxy', self._w)) + + def winfo_pointery(self): + """Return the y coordinate of the pointer on the root window.""" + return self.tk.getint( + self.tk.call('winfo', 'pointery', self._w)) + + def winfo_reqheight(self): + """Return requested height of this widget.""" + return self.tk.getint( + self.tk.call('winfo', 'reqheight', self._w)) + + def winfo_reqwidth(self): + """Return requested width of this widget.""" + return self.tk.getint( + self.tk.call('winfo', 'reqwidth', self._w)) + + def winfo_rgb(self, color): + """Return a tuple of integer RGB values in range(65536) for color in this widget.""" + return self._getints( + self.tk.call('winfo', 'rgb', self._w, color)) + + def winfo_rootx(self): + """Return x coordinate of upper left corner of this widget on the + root window.""" + return self.tk.getint( + self.tk.call('winfo', 'rootx', self._w)) + + def winfo_rooty(self): + """Return y coordinate of upper left corner of this widget on the + root window.""" + return self.tk.getint( + self.tk.call('winfo', 'rooty', self._w)) + + def winfo_screen(self): + """Return the screen name of this widget.""" + return self.tk.call('winfo', 'screen', self._w) + + def winfo_screencells(self): + """Return the number of the cells in the colormap of the screen + of this widget.""" + return self.tk.getint( + self.tk.call('winfo', 'screencells', self._w)) + + def winfo_screendepth(self): + """Return the number of bits per pixel of the root window of the + screen of this widget.""" + return self.tk.getint( + self.tk.call('winfo', 'screendepth', self._w)) + + def winfo_screenheight(self): + """Return the number of pixels of the height of the screen of this widget + in pixel.""" + return self.tk.getint( + self.tk.call('winfo', 'screenheight', self._w)) + + def winfo_screenmmheight(self): + """Return the number of pixels of the height of the screen of + this widget in mm.""" + return self.tk.getint( + self.tk.call('winfo', 'screenmmheight', self._w)) + + def winfo_screenmmwidth(self): + """Return the number of pixels of the width of the screen of + this widget in mm.""" + return self.tk.getint( + self.tk.call('winfo', 'screenmmwidth', self._w)) + + def winfo_screenvisual(self): + """Return one of the strings directcolor, grayscale, pseudocolor, + staticcolor, staticgray, or truecolor for the default + colormodel of this screen.""" + return self.tk.call('winfo', 'screenvisual', self._w) + + def winfo_screenwidth(self): + """Return the number of pixels of the width of the screen of + this widget in pixel.""" + return self.tk.getint( + self.tk.call('winfo', 'screenwidth', self._w)) + + def winfo_server(self): + """Return information of the X-Server of the screen of this widget in + the form "XmajorRminor vendor vendorVersion".""" + return self.tk.call('winfo', 'server', self._w) + + def winfo_toplevel(self): + """Return the toplevel widget of this widget.""" + return self._nametowidget(self.tk.call( + 'winfo', 'toplevel', self._w)) + + def winfo_viewable(self): + """Return true if the widget and all its higher ancestors are mapped.""" + return self.tk.getint( + self.tk.call('winfo', 'viewable', self._w)) + + def winfo_visual(self): + """Return one of the strings directcolor, grayscale, pseudocolor, + staticcolor, staticgray, or truecolor for the + colormodel of this widget.""" + return self.tk.call('winfo', 'visual', self._w) + + def winfo_visualid(self): + """Return the X identifier for the visual for this widget.""" + return self.tk.call('winfo', 'visualid', self._w) + + def winfo_visualsavailable(self, includeids=False): + """Return a list of all visuals available for the screen + of this widget. + + Each item in the list consists of a visual name (see winfo_visual), a + depth and if includeids is true is given also the X identifier.""" + data = self.tk.call('winfo', 'visualsavailable', self._w, + 'includeids' if includeids else None) + data = [self.tk.splitlist(x) for x in self.tk.splitlist(data)] + return [self.__winfo_parseitem(x) for x in data] + + def __winfo_parseitem(self, t): + """Internal function.""" + return t[:1] + tuple(map(self.__winfo_getint, t[1:])) + + def __winfo_getint(self, x): + """Internal function.""" + return int(x, 0) + + def winfo_vrootheight(self): + """Return the height of the virtual root window associated with this + widget in pixels. If there is no virtual root window return the + height of the screen.""" + return self.tk.getint( + self.tk.call('winfo', 'vrootheight', self._w)) + + def winfo_vrootwidth(self): + """Return the width of the virtual root window associated with this + widget in pixel. If there is no virtual root window return the + width of the screen.""" + return self.tk.getint( + self.tk.call('winfo', 'vrootwidth', self._w)) + + def winfo_vrootx(self): + """Return the x offset of the virtual root relative to the root + window of the screen of this widget.""" + return self.tk.getint( + self.tk.call('winfo', 'vrootx', self._w)) + + def winfo_vrooty(self): + """Return the y offset of the virtual root relative to the root + window of the screen of this widget.""" + return self.tk.getint( + self.tk.call('winfo', 'vrooty', self._w)) + + def winfo_width(self): + """Return the width of this widget.""" + return self.tk.getint( + self.tk.call('winfo', 'width', self._w)) + + def winfo_x(self): + """Return the x coordinate of the upper left corner of this widget + in the parent.""" + return self.tk.getint( + self.tk.call('winfo', 'x', self._w)) + + def winfo_y(self): + """Return the y coordinate of the upper left corner of this widget + in the parent.""" + return self.tk.getint( + self.tk.call('winfo', 'y', self._w)) + + def update(self): + """Enter event loop until all pending events have been processed by Tcl.""" + self.tk.call('update') + + def update_idletasks(self): + """Enter event loop until all idle callbacks have been called. This + will update the display of windows but not process events caused by + the user.""" + self.tk.call('update', 'idletasks') + + def bindtags(self, tagList=None): + """Set or get the list of bindtags for this widget. + + With no argument return the list of all bindtags associated with + this widget. With a list of strings as argument the bindtags are + set to this list. The bindtags determine in which order events are + processed (see bind).""" + if tagList is None: + return self.tk.splitlist( + self.tk.call('bindtags', self._w)) + else: + self.tk.call('bindtags', self._w, tagList) + + def _bind(self, what, sequence, func, add, needcleanup=1): + """Internal function.""" + if isinstance(func, str): + self.tk.call(what + (sequence, func)) + elif func: + funcid = self._register(func, self._substitute, + needcleanup) + cmd = ('%sif {"[%s %s]" == "break"} break\n' + % + (add and '+' or '', + funcid, self._subst_format_str)) + self.tk.call(what + (sequence, cmd)) + return funcid + elif sequence: + return self.tk.call(what + (sequence,)) + else: + return self.tk.splitlist(self.tk.call(what)) + + def bind(self, sequence=None, func=None, add=None): + """Bind to this widget at event SEQUENCE a call to function FUNC. + + SEQUENCE is a string of concatenated event + patterns. An event pattern is of the form + where MODIFIER is one + of Control, Mod2, M2, Shift, Mod3, M3, Lock, Mod4, M4, + Button1, B1, Mod5, M5 Button2, B2, Meta, M, Button3, + B3, Alt, Button4, B4, Double, Button5, B5 Triple, + Mod1, M1. TYPE is one of Activate, Enter, Map, + ButtonPress, Button, Expose, Motion, ButtonRelease + FocusIn, MouseWheel, Circulate, FocusOut, Property, + Colormap, Gravity Reparent, Configure, KeyPress, Key, + Unmap, Deactivate, KeyRelease Visibility, Destroy, + Leave and DETAIL is the button number for ButtonPress, + ButtonRelease and DETAIL is the Keysym for KeyPress and + KeyRelease. Examples are + for pressing Control and mouse button 1 or + for pressing A and the Alt key (KeyPress can be omitted). + An event pattern can also be a virtual event of the form + <> where AString can be arbitrary. This + event can be generated by event_generate. + If events are concatenated they must appear shortly + after each other. + + FUNC will be called if the event sequence occurs with an + instance of Event as argument. If the return value of FUNC is + "break" no further bound function is invoked. + + An additional boolean parameter ADD specifies whether FUNC will + be called additionally to the other bound function or whether + it will replace the previous function. + + Bind will return an identifier to allow deletion of the bound function with + unbind without memory leak. + + If FUNC or SEQUENCE is omitted the bound function or list + of bound events are returned.""" + + return self._bind(('bind', self._w), sequence, func, add) + + def unbind(self, sequence, funcid=None): + """Unbind for this widget the event SEQUENCE. + + If FUNCID is given, only unbind the function identified with FUNCID + and also delete the corresponding Tcl command. + + Otherwise destroy the current binding for SEQUENCE, leaving SEQUENCE + unbound. + """ + self._unbind(('bind', self._w, sequence), funcid) + + def _unbind(self, what, funcid=None): + if funcid is None: + self.tk.call(*what, '') + else: + lines = self.tk.call(what).split('\n') + prefix = f'if {{"[{funcid} ' + keep = '\n'.join(line for line in lines + if not line.startswith(prefix)) + if not keep.strip(): + keep = '' + self.tk.call(*what, keep) + self.deletecommand(funcid) + + def bind_all(self, sequence=None, func=None, add=None): + """Bind to all widgets at an event SEQUENCE a call to function FUNC. + An additional boolean parameter ADD specifies whether FUNC will + be called additionally to the other bound function or whether + it will replace the previous function. See bind for the return value.""" + return self._root()._bind(('bind', 'all'), sequence, func, add, True) + + def unbind_all(self, sequence): + """Unbind for all widgets for event SEQUENCE all functions.""" + self._root()._unbind(('bind', 'all', sequence)) + + def bind_class(self, className, sequence=None, func=None, add=None): + """Bind to widgets with bindtag CLASSNAME at event + SEQUENCE a call of function FUNC. An additional + boolean parameter ADD specifies whether FUNC will be + called additionally to the other bound function or + whether it will replace the previous function. See bind for + the return value.""" + + return self._root()._bind(('bind', className), sequence, func, add, True) + + def unbind_class(self, className, sequence): + """Unbind for all widgets with bindtag CLASSNAME for event SEQUENCE + all functions.""" + self._root()._unbind(('bind', className, sequence)) + + def mainloop(self, n=0): + """Call the mainloop of Tk.""" + self.tk.mainloop(n) + + def quit(self): + """Quit the Tcl interpreter. All widgets will be destroyed.""" + self.tk.quit() + + def _getints(self, string): + """Internal function.""" + if string: + return tuple(map(self.tk.getint, self.tk.splitlist(string))) + + def _getdoubles(self, string): + """Internal function.""" + if string: + return tuple(map(self.tk.getdouble, self.tk.splitlist(string))) + + def _getboolean(self, string): + """Internal function.""" + if string: + return self.tk.getboolean(string) + + def _displayof(self, displayof): + """Internal function.""" + if displayof: + return ('-displayof', displayof) + if displayof is None: + return ('-displayof', self._w) + return () + + @property + def _windowingsystem(self): + """Internal function.""" + try: + return self._root()._windowingsystem_cached + except AttributeError: + ws = self._root()._windowingsystem_cached = \ + self.tk.call('tk', 'windowingsystem') + return ws + + def _options(self, cnf, kw = None): + """Internal function.""" + if kw: + cnf = _cnfmerge((cnf, kw)) + else: + cnf = _cnfmerge(cnf) + res = () + for k, v in cnf.items(): + if v is not None: + if k[-1] == '_': k = k[:-1] + if callable(v): + v = self._register(v) + elif isinstance(v, (tuple, list)): + nv = [] + for item in v: + if isinstance(item, int): + nv.append(str(item)) + elif isinstance(item, str): + nv.append(_stringify(item)) + else: + break + else: + v = ' '.join(nv) + res = res + ('-'+k, v) + return res + + def nametowidget(self, name): + """Return the Tkinter instance of a widget identified by + its Tcl name NAME.""" + name = str(name).split('.') + w = self + + if not name[0]: + w = w._root() + name = name[1:] + + for n in name: + if not n: + break + w = w.children[n] + + return w + + _nametowidget = nametowidget + + def _register(self, func, subst=None, needcleanup=1): + """Return a newly created Tcl function. If this + function is called, the Python function FUNC will + be executed. An optional function SUBST can + be given which will be executed before FUNC.""" + f = CallWrapper(func, subst, self).__call__ + name = repr(id(f)) + try: + func = func.__func__ + except AttributeError: + pass + try: + name = name + func.__name__ + except AttributeError: + pass + self.tk.createcommand(name, f) + if needcleanup: + if self._tclCommands is None: + self._tclCommands = [] + self._tclCommands.append(name) + return name + + register = _register + + def _root(self): + """Internal function.""" + w = self + while w.master is not None: w = w.master + return w + _subst_format = ('%#', '%b', '%f', '%h', '%k', + '%s', '%t', '%w', '%x', '%y', + '%A', '%E', '%K', '%N', '%W', '%T', '%X', '%Y', '%D') + _subst_format_str = " ".join(_subst_format) + + def _substitute(self, *args): + """Internal function.""" + if len(args) != len(self._subst_format): return args + getboolean = self.tk.getboolean + + getint = self.tk.getint + def getint_event(s): + """Tk changed behavior in 8.4.2, returning "??" rather more often.""" + try: + return getint(s) + except (ValueError, TclError): + return s + + if any(isinstance(s, tuple) for s in args): + args = [s[0] if isinstance(s, tuple) and len(s) == 1 else s + for s in args] + nsign, b, f, h, k, s, t, w, x, y, A, E, K, N, W, T, X, Y, D = args + # Missing: (a, c, d, m, o, v, B, R) + e = Event() + # serial field: valid for all events + # number of button: ButtonPress and ButtonRelease events only + # height field: Configure, ConfigureRequest, Create, + # ResizeRequest, and Expose events only + # keycode field: KeyPress and KeyRelease events only + # time field: "valid for events that contain a time field" + # width field: Configure, ConfigureRequest, Create, ResizeRequest, + # and Expose events only + # x field: "valid for events that contain an x field" + # y field: "valid for events that contain a y field" + # keysym as decimal: KeyPress and KeyRelease events only + # x_root, y_root fields: ButtonPress, ButtonRelease, KeyPress, + # KeyRelease, and Motion events + e.serial = getint(nsign) + e.num = getint_event(b) + try: e.focus = getboolean(f) + except TclError: pass + e.height = getint_event(h) + e.keycode = getint_event(k) + e.state = getint_event(s) + e.time = getint_event(t) + e.width = getint_event(w) + e.x = getint_event(x) + e.y = getint_event(y) + e.char = A + try: e.send_event = getboolean(E) + except TclError: pass + e.keysym = K + e.keysym_num = getint_event(N) + try: + e.type = EventType(T) + except ValueError: + try: + e.type = EventType(str(T)) # can be int + except ValueError: + e.type = T + try: + e.widget = self._nametowidget(W) + except KeyError: + e.widget = W + e.x_root = getint_event(X) + e.y_root = getint_event(Y) + try: + e.delta = getint(D) + except (ValueError, TclError): + e.delta = 0 + return (e,) + + def _report_exception(self): + """Internal function.""" + exc, val, tb = sys.exc_info() + root = self._root() + root.report_callback_exception(exc, val, tb) + + def _getconfigure(self, *args): + """Call Tcl configure command and return the result as a dict.""" + cnf = {} + for x in self.tk.splitlist(self.tk.call(*args)): + x = self.tk.splitlist(x) + cnf[x[0][1:]] = (x[0][1:],) + x[1:] + return cnf + + def _getconfigure1(self, *args): + x = self.tk.splitlist(self.tk.call(*args)) + return (x[0][1:],) + x[1:] + + def _configure(self, cmd, cnf, kw): + """Internal function.""" + if kw: + cnf = _cnfmerge((cnf, kw)) + elif cnf: + cnf = _cnfmerge(cnf) + if cnf is None: + return self._getconfigure(_flatten((self._w, cmd))) + if isinstance(cnf, str): + return self._getconfigure1(_flatten((self._w, cmd, '-'+cnf))) + self.tk.call(_flatten((self._w, cmd)) + self._options(cnf)) + # These used to be defined in Widget: + + def configure(self, cnf=None, **kw): + """Configure resources of a widget. + + The values for resources are specified as keyword + arguments. To get an overview about + the allowed keyword arguments call the method keys. + """ + return self._configure('configure', cnf, kw) + + config = configure + + def cget(self, key): + """Return the resource value for a KEY given as string.""" + return self.tk.call(self._w, 'cget', '-' + key) + + __getitem__ = cget + + def __setitem__(self, key, value): + self.configure({key: value}) + + def keys(self): + """Return a list of all resource names of this widget.""" + splitlist = self.tk.splitlist + return [splitlist(x)[0][1:] for x in + splitlist(self.tk.call(self._w, 'configure'))] + + def __str__(self): + """Return the window path name of this widget.""" + return self._w + + def __repr__(self): + return '<%s.%s object %s>' % ( + self.__class__.__module__, self.__class__.__qualname__, self._w) + + # Pack methods that apply to the master + _noarg_ = ['_noarg_'] + + def pack_propagate(self, flag=_noarg_): + """Set or get the status for propagation of geometry information. + + A boolean argument specifies whether the geometry information + of the slaves will determine the size of this widget. If no argument + is given the current setting will be returned. + """ + if flag is Misc._noarg_: + return self._getboolean(self.tk.call( + 'pack', 'propagate', self._w)) + else: + self.tk.call('pack', 'propagate', self._w, flag) + + propagate = pack_propagate + + def pack_slaves(self): + """Return a list of all slaves of this widget + in its packing order.""" + return [self._nametowidget(x) for x in + self.tk.splitlist( + self.tk.call('pack', 'slaves', self._w))] + + slaves = pack_slaves + + # Place method that applies to the master + def place_slaves(self): + """Return a list of all slaves of this widget + in its packing order.""" + return [self._nametowidget(x) for x in + self.tk.splitlist( + self.tk.call( + 'place', 'slaves', self._w))] + + # Grid methods that apply to the master + + def grid_anchor(self, anchor=None): # new in Tk 8.5 + """The anchor value controls how to place the grid within the + master when no row/column has any weight. + + The default anchor is nw.""" + self.tk.call('grid', 'anchor', self._w, anchor) + + anchor = grid_anchor + + def grid_bbox(self, column=None, row=None, col2=None, row2=None): + """Return a tuple of integer coordinates for the bounding + box of this widget controlled by the geometry manager grid. + + If COLUMN, ROW is given the bounding box applies from + the cell with row and column 0 to the specified + cell. If COL2 and ROW2 are given the bounding box + starts at that cell. + + The returned integers specify the offset of the upper left + corner in the master widget and the width and height. + """ + args = ('grid', 'bbox', self._w) + if column is not None and row is not None: + args = args + (column, row) + if col2 is not None and row2 is not None: + args = args + (col2, row2) + return self._getints(self.tk.call(*args)) or None + + bbox = grid_bbox + + def _gridconvvalue(self, value): + if isinstance(value, (str, _tkinter.Tcl_Obj)): + try: + svalue = str(value) + if not svalue: + return None + elif '.' in svalue: + return self.tk.getdouble(svalue) + else: + return self.tk.getint(svalue) + except (ValueError, TclError): + pass + return value + + def _grid_configure(self, command, index, cnf, kw): + """Internal function.""" + if isinstance(cnf, str) and not kw: + if cnf[-1:] == '_': + cnf = cnf[:-1] + if cnf[:1] != '-': + cnf = '-'+cnf + options = (cnf,) + else: + options = self._options(cnf, kw) + if not options: + return _splitdict( + self.tk, + self.tk.call('grid', command, self._w, index), + conv=self._gridconvvalue) + res = self.tk.call( + ('grid', command, self._w, index) + + options) + if len(options) == 1: + return self._gridconvvalue(res) + + def grid_columnconfigure(self, index, cnf={}, **kw): + """Configure column INDEX of a grid. + + Valid resources are minsize (minimum size of the column), + weight (how much does additional space propagate to this column) + and pad (how much space to let additionally).""" + return self._grid_configure('columnconfigure', index, cnf, kw) + + columnconfigure = grid_columnconfigure + + def grid_location(self, x, y): + """Return a tuple of column and row which identify the cell + at which the pixel at position X and Y inside the master + widget is located.""" + return self._getints( + self.tk.call( + 'grid', 'location', self._w, x, y)) or None + + def grid_propagate(self, flag=_noarg_): + """Set or get the status for propagation of geometry information. + + A boolean argument specifies whether the geometry information + of the slaves will determine the size of this widget. If no argument + is given, the current setting will be returned. + """ + if flag is Misc._noarg_: + return self._getboolean(self.tk.call( + 'grid', 'propagate', self._w)) + else: + self.tk.call('grid', 'propagate', self._w, flag) + + def grid_rowconfigure(self, index, cnf={}, **kw): + """Configure row INDEX of a grid. + + Valid resources are minsize (minimum size of the row), + weight (how much does additional space propagate to this row) + and pad (how much space to let additionally).""" + return self._grid_configure('rowconfigure', index, cnf, kw) + + rowconfigure = grid_rowconfigure + + def grid_size(self): + """Return a tuple of the number of column and rows in the grid.""" + return self._getints( + self.tk.call('grid', 'size', self._w)) or None + + size = grid_size + + def grid_slaves(self, row=None, column=None): + """Return a list of all slaves of this widget + in its packing order.""" + args = () + if row is not None: + args = args + ('-row', row) + if column is not None: + args = args + ('-column', column) + return [self._nametowidget(x) for x in + self.tk.splitlist(self.tk.call( + ('grid', 'slaves', self._w) + args))] + + # Support for the "event" command, new in Tk 4.2. + # By Case Roole. + + def event_add(self, virtual, *sequences): + """Bind a virtual event VIRTUAL (of the form <>) + to an event SEQUENCE such that the virtual event is triggered + whenever SEQUENCE occurs.""" + args = ('event', 'add', virtual) + sequences + self.tk.call(args) + + def event_delete(self, virtual, *sequences): + """Unbind a virtual event VIRTUAL from SEQUENCE.""" + args = ('event', 'delete', virtual) + sequences + self.tk.call(args) + + def event_generate(self, sequence, **kw): + """Generate an event SEQUENCE. Additional + keyword arguments specify parameter of the event + (e.g. x, y, rootx, rooty).""" + args = ('event', 'generate', self._w, sequence) + for k, v in kw.items(): + args = args + ('-%s' % k, str(v)) + self.tk.call(args) + + def event_info(self, virtual=None): + """Return a list of all virtual events or the information + about the SEQUENCE bound to the virtual event VIRTUAL.""" + return self.tk.splitlist( + self.tk.call('event', 'info', virtual)) + + # Image related commands + + def image_names(self): + """Return a list of all existing image names.""" + return self.tk.splitlist(self.tk.call('image', 'names')) + + def image_types(self): + """Return a list of all available image types (e.g. photo bitmap).""" + return self.tk.splitlist(self.tk.call('image', 'types')) + + +class CallWrapper: + """Internal class. Stores function to call when some user + defined Tcl function is called e.g. after an event occurred.""" + + def __init__(self, func, subst, widget): + """Store FUNC, SUBST and WIDGET as members.""" + self.func = func + self.subst = subst + self.widget = widget + + def __call__(self, *args): + """Apply first function SUBST to arguments, than FUNC.""" + try: + if self.subst: + args = self.subst(*args) + return self.func(*args) + except SystemExit: + raise + except: + self.widget._report_exception() + + +class XView: + """Mix-in class for querying and changing the horizontal position + of a widget's window.""" + + def xview(self, *args): + """Query and change the horizontal position of the view.""" + res = self.tk.call(self._w, 'xview', *args) + if not args: + return self._getdoubles(res) + + def xview_moveto(self, fraction): + """Adjusts the view in the window so that FRACTION of the + total width of the canvas is off-screen to the left.""" + self.tk.call(self._w, 'xview', 'moveto', fraction) + + def xview_scroll(self, number, what): + """Shift the x-view according to NUMBER which is measured in "units" + or "pages" (WHAT).""" + self.tk.call(self._w, 'xview', 'scroll', number, what) + + +class YView: + """Mix-in class for querying and changing the vertical position + of a widget's window.""" + + def yview(self, *args): + """Query and change the vertical position of the view.""" + res = self.tk.call(self._w, 'yview', *args) + if not args: + return self._getdoubles(res) + + def yview_moveto(self, fraction): + """Adjusts the view in the window so that FRACTION of the + total height of the canvas is off-screen to the top.""" + self.tk.call(self._w, 'yview', 'moveto', fraction) + + def yview_scroll(self, number, what): + """Shift the y-view according to NUMBER which is measured in + "units" or "pages" (WHAT).""" + self.tk.call(self._w, 'yview', 'scroll', number, what) + + +class Wm: + """Provides functions for the communication with the window manager.""" + + def wm_aspect(self, + minNumer=None, minDenom=None, + maxNumer=None, maxDenom=None): + """Instruct the window manager to set the aspect ratio (width/height) + of this widget to be between MINNUMER/MINDENOM and MAXNUMER/MAXDENOM. Return a tuple + of the actual values if no argument is given.""" + return self._getints( + self.tk.call('wm', 'aspect', self._w, + minNumer, minDenom, + maxNumer, maxDenom)) + + aspect = wm_aspect + + def wm_attributes(self, *args, return_python_dict=False, **kwargs): + """Return or sets platform specific attributes. + + When called with a single argument return_python_dict=True, + return a dict of the platform specific attributes and their values. + When called without arguments or with a single argument + return_python_dict=False, return a tuple containing intermixed + attribute names with the minus prefix and their values. + + When called with a single string value, return the value for the + specific option. When called with keyword arguments, set the + corresponding attributes. + """ + if not kwargs: + if not args: + res = self.tk.call('wm', 'attributes', self._w) + if return_python_dict: + return _splitdict(self.tk, res) + else: + return self.tk.splitlist(res) + if len(args) == 1 and args[0] is not None: + option = args[0] + if option[0] == '-': + # TODO: deprecate + option = option[1:] + return self.tk.call('wm', 'attributes', self._w, '-' + option) + # TODO: deprecate + return self.tk.call('wm', 'attributes', self._w, *args) + elif args: + raise TypeError('wm_attribute() options have been specified as ' + 'positional and keyword arguments') + else: + self.tk.call('wm', 'attributes', self._w, *self._options(kwargs)) + + attributes = wm_attributes + + def wm_client(self, name=None): + """Store NAME in WM_CLIENT_MACHINE property of this widget. Return + current value.""" + return self.tk.call('wm', 'client', self._w, name) + + client = wm_client + + def wm_colormapwindows(self, *wlist): + """Store list of window names (WLIST) into WM_COLORMAPWINDOWS property + of this widget. This list contains windows whose colormaps differ from their + parents. Return current list of widgets if WLIST is empty.""" + if len(wlist) > 1: + wlist = (wlist,) # Tk needs a list of windows here + args = ('wm', 'colormapwindows', self._w) + wlist + if wlist: + self.tk.call(args) + else: + return [self._nametowidget(x) + for x in self.tk.splitlist(self.tk.call(args))] + + colormapwindows = wm_colormapwindows + + def wm_command(self, value=None): + """Store VALUE in WM_COMMAND property. It is the command + which shall be used to invoke the application. Return current + command if VALUE is None.""" + return self.tk.call('wm', 'command', self._w, value) + + command = wm_command + + def wm_deiconify(self): + """Deiconify this widget. If it was never mapped it will not be mapped. + On Windows it will raise this widget and give it the focus.""" + return self.tk.call('wm', 'deiconify', self._w) + + deiconify = wm_deiconify + + def wm_focusmodel(self, model=None): + """Set focus model to MODEL. "active" means that this widget will claim + the focus itself, "passive" means that the window manager shall give + the focus. Return current focus model if MODEL is None.""" + return self.tk.call('wm', 'focusmodel', self._w, model) + + focusmodel = wm_focusmodel + + def wm_forget(self, window): # new in Tk 8.5 + """The window will be unmapped from the screen and will no longer + be managed by wm. toplevel windows will be treated like frame + windows once they are no longer managed by wm, however, the menu + option configuration will be remembered and the menus will return + once the widget is managed again.""" + self.tk.call('wm', 'forget', window) + + forget = wm_forget + + def wm_frame(self): + """Return identifier for decorative frame of this widget if present.""" + return self.tk.call('wm', 'frame', self._w) + + frame = wm_frame + + def wm_geometry(self, newGeometry=None): + """Set geometry to NEWGEOMETRY of the form =widthxheight+x+y. Return + current value if None is given.""" + return self.tk.call('wm', 'geometry', self._w, newGeometry) + + geometry = wm_geometry + + def wm_grid(self, + baseWidth=None, baseHeight=None, + widthInc=None, heightInc=None): + """Instruct the window manager that this widget shall only be + resized on grid boundaries. WIDTHINC and HEIGHTINC are the width and + height of a grid unit in pixels. BASEWIDTH and BASEHEIGHT are the + number of grid units requested in Tk_GeometryRequest.""" + return self._getints(self.tk.call( + 'wm', 'grid', self._w, + baseWidth, baseHeight, widthInc, heightInc)) + + grid = wm_grid + + def wm_group(self, pathName=None): + """Set the group leader widgets for related widgets to PATHNAME. Return + the group leader of this widget if None is given.""" + return self.tk.call('wm', 'group', self._w, pathName) + + group = wm_group + + def wm_iconbitmap(self, bitmap=None, default=None): + """Set bitmap for the iconified widget to BITMAP. Return + the bitmap if None is given. + + Under Windows, the DEFAULT parameter can be used to set the icon + for the widget and any descendants that don't have an icon set + explicitly. DEFAULT can be the relative path to a .ico file + (example: root.iconbitmap(default='myicon.ico') ). See Tk + documentation for more information.""" + if default is not None: + return self.tk.call('wm', 'iconbitmap', self._w, '-default', default) + else: + return self.tk.call('wm', 'iconbitmap', self._w, bitmap) + + iconbitmap = wm_iconbitmap + + def wm_iconify(self): + """Display widget as icon.""" + return self.tk.call('wm', 'iconify', self._w) + + iconify = wm_iconify + + def wm_iconmask(self, bitmap=None): + """Set mask for the icon bitmap of this widget. Return the + mask if None is given.""" + return self.tk.call('wm', 'iconmask', self._w, bitmap) + + iconmask = wm_iconmask + + def wm_iconname(self, newName=None): + """Set the name of the icon for this widget. Return the name if + None is given.""" + return self.tk.call('wm', 'iconname', self._w, newName) + + iconname = wm_iconname + + def wm_iconphoto(self, default=False, *args): # new in Tk 8.5 + """Sets the titlebar icon for this window based on the named photo + images passed through args. If default is True, this is applied to + all future created toplevels as well. + + The data in the images is taken as a snapshot at the time of + invocation. If the images are later changed, this is not reflected + to the titlebar icons. Multiple images are accepted to allow + different images sizes to be provided. The window manager may scale + provided icons to an appropriate size. + + On Windows, the images are packed into a Windows icon structure. + This will override an icon specified to wm_iconbitmap, and vice + versa. + + On X, the images are arranged into the _NET_WM_ICON X property, + which most modern window managers support. An icon specified by + wm_iconbitmap may exist simultaneously. + + On Macintosh, this currently does nothing.""" + if default: + self.tk.call('wm', 'iconphoto', self._w, "-default", *args) + else: + self.tk.call('wm', 'iconphoto', self._w, *args) + + iconphoto = wm_iconphoto + + def wm_iconposition(self, x=None, y=None): + """Set the position of the icon of this widget to X and Y. Return + a tuple of the current values of X and X if None is given.""" + return self._getints(self.tk.call( + 'wm', 'iconposition', self._w, x, y)) + + iconposition = wm_iconposition + + def wm_iconwindow(self, pathName=None): + """Set widget PATHNAME to be displayed instead of icon. Return the current + value if None is given.""" + return self.tk.call('wm', 'iconwindow', self._w, pathName) + + iconwindow = wm_iconwindow + + def wm_manage(self, widget): # new in Tk 8.5 + """The widget specified will become a stand alone top-level window. + The window will be decorated with the window managers title bar, + etc.""" + self.tk.call('wm', 'manage', widget) + + manage = wm_manage + + def wm_maxsize(self, width=None, height=None): + """Set max WIDTH and HEIGHT for this widget. If the window is gridded + the values are given in grid units. Return the current values if None + is given.""" + return self._getints(self.tk.call( + 'wm', 'maxsize', self._w, width, height)) + + maxsize = wm_maxsize + + def wm_minsize(self, width=None, height=None): + """Set min WIDTH and HEIGHT for this widget. If the window is gridded + the values are given in grid units. Return the current values if None + is given.""" + return self._getints(self.tk.call( + 'wm', 'minsize', self._w, width, height)) + + minsize = wm_minsize + + def wm_overrideredirect(self, boolean=None): + """Instruct the window manager to ignore this widget + if BOOLEAN is given with 1. Return the current value if None + is given.""" + return self._getboolean(self.tk.call( + 'wm', 'overrideredirect', self._w, boolean)) + + overrideredirect = wm_overrideredirect + + def wm_positionfrom(self, who=None): + """Instruct the window manager that the position of this widget shall + be defined by the user if WHO is "user", and by its own policy if WHO is + "program".""" + return self.tk.call('wm', 'positionfrom', self._w, who) + + positionfrom = wm_positionfrom + + def wm_protocol(self, name=None, func=None): + """Bind function FUNC to command NAME for this widget. + Return the function bound to NAME if None is given. NAME could be + e.g. "WM_SAVE_YOURSELF" or "WM_DELETE_WINDOW".""" + if callable(func): + command = self._register(func) + else: + command = func + return self.tk.call( + 'wm', 'protocol', self._w, name, command) + + protocol = wm_protocol + + def wm_resizable(self, width=None, height=None): + """Instruct the window manager whether this width can be resized + in WIDTH or HEIGHT. Both values are boolean values.""" + return self.tk.call('wm', 'resizable', self._w, width, height) + + resizable = wm_resizable + + def wm_sizefrom(self, who=None): + """Instruct the window manager that the size of this widget shall + be defined by the user if WHO is "user", and by its own policy if WHO is + "program".""" + return self.tk.call('wm', 'sizefrom', self._w, who) + + sizefrom = wm_sizefrom + + def wm_state(self, newstate=None): + """Query or set the state of this widget as one of normal, icon, + iconic (see wm_iconwindow), withdrawn, or zoomed (Windows only).""" + return self.tk.call('wm', 'state', self._w, newstate) + + state = wm_state + + def wm_title(self, string=None): + """Set the title of this widget.""" + return self.tk.call('wm', 'title', self._w, string) + + title = wm_title + + def wm_transient(self, master=None): + """Instruct the window manager that this widget is transient + with regard to widget MASTER.""" + return self.tk.call('wm', 'transient', self._w, master) + + transient = wm_transient + + def wm_withdraw(self): + """Withdraw this widget from the screen such that it is unmapped + and forgotten by the window manager. Re-draw it with wm_deiconify.""" + return self.tk.call('wm', 'withdraw', self._w) + + withdraw = wm_withdraw + + +class Tk(Misc, Wm): + """Toplevel widget of Tk which represents mostly the main window + of an application. It has an associated Tcl interpreter.""" + _w = '.' + + def __init__(self, screenName=None, baseName=None, className='Tk', + useTk=True, sync=False, use=None): + """Return a new top level widget on screen SCREENNAME. A new Tcl interpreter will + be created. BASENAME will be used for the identification of the profile file (see + readprofile). + It is constructed from sys.argv[0] without extensions if None is given. CLASSNAME + is the name of the widget class.""" + self.master = None + self.children = {} + self._tkloaded = False + # to avoid recursions in the getattr code in case of failure, we + # ensure that self.tk is always _something_. + self.tk = None + if baseName is None: + import os + # TODO: RUSTPYTHON + # baseName = os.path.basename(sys.argv[0]) + baseName = "" # sys.argv[0] + baseName, ext = os.path.splitext(baseName) + if ext not in ('.py', '.pyc'): + baseName = baseName + ext + interactive = False + self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use) + if _debug: + self.tk.settrace(_print_command) + if useTk: + self._loadtk() + if not sys.flags.ignore_environment: + # Issue #16248: Honor the -E flag to avoid code injection. + self.readprofile(baseName, className) + + def loadtk(self): + if not self._tkloaded: + self.tk.loadtk() + self._loadtk() + + def _loadtk(self): + self._tkloaded = True + global _default_root + # Version sanity checks + tk_version = self.tk.getvar('tk_version') + if tk_version != _tkinter.TK_VERSION: + raise RuntimeError("tk.h version (%s) doesn't match libtk.a version (%s)" + % (_tkinter.TK_VERSION, tk_version)) + # Under unknown circumstances, tcl_version gets coerced to float + tcl_version = str(self.tk.getvar('tcl_version')) + if tcl_version != _tkinter.TCL_VERSION: + raise RuntimeError("tcl.h version (%s) doesn't match libtcl.a version (%s)" \ + % (_tkinter.TCL_VERSION, tcl_version)) + # Create and register the tkerror and exit commands + # We need to inline parts of _register here, _ register + # would register differently-named commands. + if self._tclCommands is None: + self._tclCommands = [] + self.tk.createcommand('tkerror', _tkerror) + self.tk.createcommand('exit', _exit) + self._tclCommands.append('tkerror') + self._tclCommands.append('exit') + if _support_default_root and _default_root is None: + _default_root = self + self.protocol("WM_DELETE_WINDOW", self.destroy) + + def destroy(self): + """Destroy this and all descendants widgets. This will + end the application of this Tcl interpreter.""" + for c in list(self.children.values()): c.destroy() + self.tk.call('destroy', self._w) + Misc.destroy(self) + global _default_root + if _support_default_root and _default_root is self: + _default_root = None + + def readprofile(self, baseName, className): + """Internal function. It reads .BASENAME.tcl and .CLASSNAME.tcl into + the Tcl Interpreter and calls exec on the contents of .BASENAME.py and + .CLASSNAME.py if such a file exists in the home directory.""" + import os + if 'HOME' in os.environ: home = os.environ['HOME'] + else: home = os.curdir + class_tcl = os.path.join(home, '.%s.tcl' % className) + class_py = os.path.join(home, '.%s.py' % className) + base_tcl = os.path.join(home, '.%s.tcl' % baseName) + base_py = os.path.join(home, '.%s.py' % baseName) + dir = {'self': self} + exec('from tkinter import *', dir) + if os.path.isfile(class_tcl): + self.tk.call('source', class_tcl) + if os.path.isfile(class_py): + exec(open(class_py).read(), dir) + if os.path.isfile(base_tcl): + self.tk.call('source', base_tcl) + if os.path.isfile(base_py): + exec(open(base_py).read(), dir) + + def report_callback_exception(self, exc, val, tb): + """Report callback exception on sys.stderr. + + Applications may want to override this internal function, and + should when sys.stderr is None.""" + import traceback + print("Exception in Tkinter callback", file=sys.stderr) + sys.last_exc = val + sys.last_type = exc + sys.last_value = val + sys.last_traceback = tb + traceback.print_exception(exc, val, tb) + + def __getattr__(self, attr): + "Delegate attribute access to the interpreter object" + return getattr(self.tk, attr) + + +def _print_command(cmd, *, file=sys.stderr): + # Print executed Tcl/Tk commands. + assert isinstance(cmd, tuple) + cmd = _join(cmd) + print(cmd, file=file) + + +# Ideally, the classes Pack, Place and Grid disappear, the +# pack/place/grid methods are defined on the Widget class, and +# everybody uses w.pack_whatever(...) instead of Pack.whatever(w, +# ...), with pack(), place() and grid() being short for +# pack_configure(), place_configure() and grid_columnconfigure(), and +# forget() being short for pack_forget(). As a practical matter, I'm +# afraid that there is too much code out there that may be using the +# Pack, Place or Grid class, so I leave them intact -- but only as +# backwards compatibility features. Also note that those methods that +# take a master as argument (e.g. pack_propagate) have been moved to +# the Misc class (which now incorporates all methods common between +# toplevel and interior widgets). Again, for compatibility, these are +# copied into the Pack, Place or Grid class. + + +def Tcl(screenName=None, baseName=None, className='Tk', useTk=False): + return Tk(screenName, baseName, className, useTk) + + +class Pack: + """Geometry manager Pack. + + Base class to use the methods pack_* in every widget.""" + + def pack_configure(self, cnf={}, **kw): + """Pack a widget in the parent widget. Use as options: + after=widget - pack it after you have packed widget + anchor=NSEW (or subset) - position widget according to + given direction + before=widget - pack it before you will pack widget + expand=bool - expand widget if parent size grows + fill=NONE or X or Y or BOTH - fill widget if widget grows + in=master - use master to contain this widget + in_=master - see 'in' option description + ipadx=amount - add internal padding in x direction + ipady=amount - add internal padding in y direction + padx=amount - add padding in x direction + pady=amount - add padding in y direction + side=TOP or BOTTOM or LEFT or RIGHT - where to add this widget. + """ + self.tk.call( + ('pack', 'configure', self._w) + + self._options(cnf, kw)) + + pack = configure = config = pack_configure + + def pack_forget(self): + """Unmap this widget and do not use it for the packing order.""" + self.tk.call('pack', 'forget', self._w) + + forget = pack_forget + + def pack_info(self): + """Return information about the packing options + for this widget.""" + d = _splitdict(self.tk, self.tk.call('pack', 'info', self._w)) + if 'in' in d: + d['in'] = self.nametowidget(d['in']) + return d + + info = pack_info + propagate = pack_propagate = Misc.pack_propagate + slaves = pack_slaves = Misc.pack_slaves + + +class Place: + """Geometry manager Place. + + Base class to use the methods place_* in every widget.""" + + def place_configure(self, cnf={}, **kw): + """Place a widget in the parent widget. Use as options: + in=master - master relative to which the widget is placed + in_=master - see 'in' option description + x=amount - locate anchor of this widget at position x of master + y=amount - locate anchor of this widget at position y of master + relx=amount - locate anchor of this widget between 0.0 and 1.0 + relative to width of master (1.0 is right edge) + rely=amount - locate anchor of this widget between 0.0 and 1.0 + relative to height of master (1.0 is bottom edge) + anchor=NSEW (or subset) - position anchor according to given direction + width=amount - width of this widget in pixel + height=amount - height of this widget in pixel + relwidth=amount - width of this widget between 0.0 and 1.0 + relative to width of master (1.0 is the same width + as the master) + relheight=amount - height of this widget between 0.0 and 1.0 + relative to height of master (1.0 is the same + height as the master) + bordermode="inside" or "outside" - whether to take border width of + master widget into account + """ + self.tk.call( + ('place', 'configure', self._w) + + self._options(cnf, kw)) + + place = configure = config = place_configure + + def place_forget(self): + """Unmap this widget.""" + self.tk.call('place', 'forget', self._w) + + forget = place_forget + + def place_info(self): + """Return information about the placing options + for this widget.""" + d = _splitdict(self.tk, self.tk.call('place', 'info', self._w)) + if 'in' in d: + d['in'] = self.nametowidget(d['in']) + return d + + info = place_info + slaves = place_slaves = Misc.place_slaves + + +class Grid: + """Geometry manager Grid. + + Base class to use the methods grid_* in every widget.""" + # Thanks to Masazumi Yoshikawa (yosikawa@isi.edu) + + def grid_configure(self, cnf={}, **kw): + """Position a widget in the parent widget in a grid. Use as options: + column=number - use cell identified with given column (starting with 0) + columnspan=number - this widget will span several columns + in=master - use master to contain this widget + in_=master - see 'in' option description + ipadx=amount - add internal padding in x direction + ipady=amount - add internal padding in y direction + padx=amount - add padding in x direction + pady=amount - add padding in y direction + row=number - use cell identified with given row (starting with 0) + rowspan=number - this widget will span several rows + sticky=NSEW - if cell is larger on which sides will this + widget stick to the cell boundary + """ + self.tk.call( + ('grid', 'configure', self._w) + + self._options(cnf, kw)) + + grid = configure = config = grid_configure + bbox = grid_bbox = Misc.grid_bbox + columnconfigure = grid_columnconfigure = Misc.grid_columnconfigure + + def grid_forget(self): + """Unmap this widget.""" + self.tk.call('grid', 'forget', self._w) + + forget = grid_forget + + def grid_remove(self): + """Unmap this widget but remember the grid options.""" + self.tk.call('grid', 'remove', self._w) + + def grid_info(self): + """Return information about the options + for positioning this widget in a grid.""" + d = _splitdict(self.tk, self.tk.call('grid', 'info', self._w)) + if 'in' in d: + d['in'] = self.nametowidget(d['in']) + return d + + info = grid_info + location = grid_location = Misc.grid_location + propagate = grid_propagate = Misc.grid_propagate + rowconfigure = grid_rowconfigure = Misc.grid_rowconfigure + size = grid_size = Misc.grid_size + slaves = grid_slaves = Misc.grid_slaves + + +class BaseWidget(Misc): + """Internal class.""" + + def _setup(self, master, cnf): + """Internal function. Sets up information about children.""" + if master is None: + master = _get_default_root() + self.master = master + self.tk = master.tk + name = None + if 'name' in cnf: + name = cnf['name'] + del cnf['name'] + if not name: + name = self.__class__.__name__.lower() + if name[-1].isdigit(): + name += "!" # Avoid duplication when calculating names below + if master._last_child_ids is None: + master._last_child_ids = {} + count = master._last_child_ids.get(name, 0) + 1 + master._last_child_ids[name] = count + if count == 1: + name = '!%s' % (name,) + else: + name = '!%s%d' % (name, count) + self._name = name + if master._w=='.': + self._w = '.' + name + else: + self._w = master._w + '.' + name + self.children = {} + if self._name in self.master.children: + self.master.children[self._name].destroy() + self.master.children[self._name] = self + + def __init__(self, master, widgetName, cnf={}, kw={}, extra=()): + """Construct a widget with the parent widget MASTER, a name WIDGETNAME + and appropriate options.""" + if kw: + cnf = _cnfmerge((cnf, kw)) + self.widgetName = widgetName + self._setup(master, cnf) + if self._tclCommands is None: + self._tclCommands = [] + classes = [(k, v) for k, v in cnf.items() if isinstance(k, type)] + for k, v in classes: + del cnf[k] + self.tk.call( + (widgetName, self._w) + extra + self._options(cnf)) + for k, v in classes: + k.configure(self, v) + + def destroy(self): + """Destroy this and all descendants widgets.""" + for c in list(self.children.values()): c.destroy() + self.tk.call('destroy', self._w) + if self._name in self.master.children: + del self.master.children[self._name] + Misc.destroy(self) + + def _do(self, name, args=()): + # XXX Obsolete -- better use self.tk.call directly! + return self.tk.call((self._w, name) + args) + + +class Widget(BaseWidget, Pack, Place, Grid): + """Internal class. + + Base class for a widget which can be positioned with the geometry managers + Pack, Place or Grid.""" + pass + + +class Toplevel(BaseWidget, Wm): + """Toplevel widget, e.g. for dialogs.""" + + def __init__(self, master=None, cnf={}, **kw): + """Construct a toplevel widget with the parent MASTER. + + Valid resource names: background, bd, bg, borderwidth, class, + colormap, container, cursor, height, highlightbackground, + highlightcolor, highlightthickness, menu, relief, screen, takefocus, + use, visual, width.""" + if kw: + cnf = _cnfmerge((cnf, kw)) + extra = () + for wmkey in ['screen', 'class_', 'class', 'visual', + 'colormap']: + if wmkey in cnf: + val = cnf[wmkey] + # TBD: a hack needed because some keys + # are not valid as keyword arguments + if wmkey[-1] == '_': opt = '-'+wmkey[:-1] + else: opt = '-'+wmkey + extra = extra + (opt, val) + del cnf[wmkey] + BaseWidget.__init__(self, master, 'toplevel', cnf, {}, extra) + root = self._root() + self.iconname(root.iconname()) + self.title(root.title()) + self.protocol("WM_DELETE_WINDOW", self.destroy) + + +class Button(Widget): + """Button widget.""" + + def __init__(self, master=None, cnf={}, **kw): + """Construct a button widget with the parent MASTER. + + STANDARD OPTIONS + + activebackground, activeforeground, anchor, + background, bitmap, borderwidth, cursor, + disabledforeground, font, foreground + highlightbackground, highlightcolor, + highlightthickness, image, justify, + padx, pady, relief, repeatdelay, + repeatinterval, takefocus, text, + textvariable, underline, wraplength + + WIDGET-SPECIFIC OPTIONS + + command, compound, default, height, + overrelief, state, width + """ + Widget.__init__(self, master, 'button', cnf, kw) + + def flash(self): + """Flash the button. + + This is accomplished by redisplaying + the button several times, alternating between active and + normal colors. At the end of the flash the button is left + in the same normal/active state as when the command was + invoked. This command is ignored if the button's state is + disabled. + """ + self.tk.call(self._w, 'flash') + + def invoke(self): + """Invoke the command associated with the button. + + The return value is the return value from the command, + or an empty string if there is no command associated with + the button. This command is ignored if the button's state + is disabled. + """ + return self.tk.call(self._w, 'invoke') + + +class Canvas(Widget, XView, YView): + """Canvas widget to display graphical elements like lines or text.""" + + def __init__(self, master=None, cnf={}, **kw): + """Construct a canvas widget with the parent MASTER. + + Valid resource names: background, bd, bg, borderwidth, closeenough, + confine, cursor, height, highlightbackground, highlightcolor, + highlightthickness, insertbackground, insertborderwidth, + insertofftime, insertontime, insertwidth, offset, relief, + scrollregion, selectbackground, selectborderwidth, selectforeground, + state, takefocus, width, xscrollcommand, xscrollincrement, + yscrollcommand, yscrollincrement.""" + Widget.__init__(self, master, 'canvas', cnf, kw) + + def addtag(self, *args): + """Internal function.""" + self.tk.call((self._w, 'addtag') + args) + + def addtag_above(self, newtag, tagOrId): + """Add tag NEWTAG to all items above TAGORID.""" + self.addtag(newtag, 'above', tagOrId) + + def addtag_all(self, newtag): + """Add tag NEWTAG to all items.""" + self.addtag(newtag, 'all') + + def addtag_below(self, newtag, tagOrId): + """Add tag NEWTAG to all items below TAGORID.""" + self.addtag(newtag, 'below', tagOrId) + + def addtag_closest(self, newtag, x, y, halo=None, start=None): + """Add tag NEWTAG to item which is closest to pixel at X, Y. + If several match take the top-most. + All items closer than HALO are considered overlapping (all are + closest). If START is specified the next below this tag is taken.""" + self.addtag(newtag, 'closest', x, y, halo, start) + + def addtag_enclosed(self, newtag, x1, y1, x2, y2): + """Add tag NEWTAG to all items in the rectangle defined + by X1,Y1,X2,Y2.""" + self.addtag(newtag, 'enclosed', x1, y1, x2, y2) + + def addtag_overlapping(self, newtag, x1, y1, x2, y2): + """Add tag NEWTAG to all items which overlap the rectangle + defined by X1,Y1,X2,Y2.""" + self.addtag(newtag, 'overlapping', x1, y1, x2, y2) + + def addtag_withtag(self, newtag, tagOrId): + """Add tag NEWTAG to all items with TAGORID.""" + self.addtag(newtag, 'withtag', tagOrId) + + def bbox(self, *args): + """Return a tuple of X1,Y1,X2,Y2 coordinates for a rectangle + which encloses all items with tags specified as arguments.""" + return self._getints( + self.tk.call((self._w, 'bbox') + args)) or None + + def tag_unbind(self, tagOrId, sequence, funcid=None): + """Unbind for all items with TAGORID for event SEQUENCE the + function identified with FUNCID.""" + self._unbind((self._w, 'bind', tagOrId, sequence), funcid) + + def tag_bind(self, tagOrId, sequence=None, func=None, add=None): + """Bind to all items with TAGORID at event SEQUENCE a call to function FUNC. + + An additional boolean parameter ADD specifies whether FUNC will be + called additionally to the other bound function or whether it will + replace the previous function. See bind for the return value.""" + return self._bind((self._w, 'bind', tagOrId), + sequence, func, add) + + def canvasx(self, screenx, gridspacing=None): + """Return the canvas x coordinate of pixel position SCREENX rounded + to nearest multiple of GRIDSPACING units.""" + return self.tk.getdouble(self.tk.call( + self._w, 'canvasx', screenx, gridspacing)) + + def canvasy(self, screeny, gridspacing=None): + """Return the canvas y coordinate of pixel position SCREENY rounded + to nearest multiple of GRIDSPACING units.""" + return self.tk.getdouble(self.tk.call( + self._w, 'canvasy', screeny, gridspacing)) + + def coords(self, *args): + """Return a list of coordinates for the item given in ARGS.""" + args = _flatten(args) + return [self.tk.getdouble(x) for x in + self.tk.splitlist( + self.tk.call((self._w, 'coords') + args))] + + def _create(self, itemType, args, kw): # Args: (val, val, ..., cnf={}) + """Internal function.""" + args = _flatten(args) + cnf = args[-1] + if isinstance(cnf, (dict, tuple)): + args = args[:-1] + else: + cnf = {} + return self.tk.getint(self.tk.call( + self._w, 'create', itemType, + *(args + self._options(cnf, kw)))) + + def create_arc(self, *args, **kw): + """Create arc shaped region with coordinates x1,y1,x2,y2.""" + return self._create('arc', args, kw) + + def create_bitmap(self, *args, **kw): + """Create bitmap with coordinates x1,y1.""" + return self._create('bitmap', args, kw) + + def create_image(self, *args, **kw): + """Create image item with coordinates x1,y1.""" + return self._create('image', args, kw) + + def create_line(self, *args, **kw): + """Create line with coordinates x1,y1,...,xn,yn.""" + return self._create('line', args, kw) + + def create_oval(self, *args, **kw): + """Create oval with coordinates x1,y1,x2,y2.""" + return self._create('oval', args, kw) + + def create_polygon(self, *args, **kw): + """Create polygon with coordinates x1,y1,...,xn,yn.""" + return self._create('polygon', args, kw) + + def create_rectangle(self, *args, **kw): + """Create rectangle with coordinates x1,y1,x2,y2.""" + return self._create('rectangle', args, kw) + + def create_text(self, *args, **kw): + """Create text with coordinates x1,y1.""" + return self._create('text', args, kw) + + def create_window(self, *args, **kw): + """Create window with coordinates x1,y1,x2,y2.""" + return self._create('window', args, kw) + + def dchars(self, *args): + """Delete characters of text items identified by tag or id in ARGS (possibly + several times) from FIRST to LAST character (including).""" + self.tk.call((self._w, 'dchars') + args) + + def delete(self, *args): + """Delete items identified by all tag or ids contained in ARGS.""" + self.tk.call((self._w, 'delete') + args) + + def dtag(self, *args): + """Delete tag or id given as last arguments in ARGS from items + identified by first argument in ARGS.""" + self.tk.call((self._w, 'dtag') + args) + + def find(self, *args): + """Internal function.""" + return self._getints( + self.tk.call((self._w, 'find') + args)) or () + + def find_above(self, tagOrId): + """Return items above TAGORID.""" + return self.find('above', tagOrId) + + def find_all(self): + """Return all items.""" + return self.find('all') + + def find_below(self, tagOrId): + """Return all items below TAGORID.""" + return self.find('below', tagOrId) + + def find_closest(self, x, y, halo=None, start=None): + """Return item which is closest to pixel at X, Y. + If several match take the top-most. + All items closer than HALO are considered overlapping (all are + closest). If START is specified the next below this tag is taken.""" + return self.find('closest', x, y, halo, start) + + def find_enclosed(self, x1, y1, x2, y2): + """Return all items in rectangle defined + by X1,Y1,X2,Y2.""" + return self.find('enclosed', x1, y1, x2, y2) + + def find_overlapping(self, x1, y1, x2, y2): + """Return all items which overlap the rectangle + defined by X1,Y1,X2,Y2.""" + return self.find('overlapping', x1, y1, x2, y2) + + def find_withtag(self, tagOrId): + """Return all items with TAGORID.""" + return self.find('withtag', tagOrId) + + def focus(self, *args): + """Set focus to the first item specified in ARGS.""" + return self.tk.call((self._w, 'focus') + args) + + def gettags(self, *args): + """Return tags associated with the first item specified in ARGS.""" + return self.tk.splitlist( + self.tk.call((self._w, 'gettags') + args)) + + def icursor(self, *args): + """Set cursor at position POS in the item identified by TAGORID. + In ARGS TAGORID must be first.""" + self.tk.call((self._w, 'icursor') + args) + + def index(self, *args): + """Return position of cursor as integer in item specified in ARGS.""" + return self.tk.getint(self.tk.call((self._w, 'index') + args)) + + def insert(self, *args): + """Insert TEXT in item TAGORID at position POS. ARGS must + be TAGORID POS TEXT.""" + self.tk.call((self._w, 'insert') + args) + + def itemcget(self, tagOrId, option): + """Return the resource value for an OPTION for item TAGORID.""" + return self.tk.call( + (self._w, 'itemcget') + (tagOrId, '-'+option)) + + def itemconfigure(self, tagOrId, cnf=None, **kw): + """Configure resources of an item TAGORID. + + The values for resources are specified as keyword + arguments. To get an overview about + the allowed keyword arguments call the method without arguments. + """ + return self._configure(('itemconfigure', tagOrId), cnf, kw) + + itemconfig = itemconfigure + + # lower, tkraise/lift hide Misc.lower, Misc.tkraise/lift, + # so the preferred name for them is tag_lower, tag_raise + # (similar to tag_bind, and similar to the Text widget); + # unfortunately can't delete the old ones yet (maybe in 1.6) + def tag_lower(self, *args): + """Lower an item TAGORID given in ARGS + (optional below another item).""" + self.tk.call((self._w, 'lower') + args) + + lower = tag_lower + + def move(self, *args): + """Move an item TAGORID given in ARGS.""" + self.tk.call((self._w, 'move') + args) + + def moveto(self, tagOrId, x='', y=''): + """Move the items given by TAGORID in the canvas coordinate + space so that the first coordinate pair of the bottommost + item with tag TAGORID is located at position (X,Y). + X and Y may be the empty string, in which case the + corresponding coordinate will be unchanged. All items matching + TAGORID remain in the same positions relative to each other.""" + self.tk.call(self._w, 'moveto', tagOrId, x, y) + + def postscript(self, cnf={}, **kw): + """Print the contents of the canvas to a postscript + file. Valid options: colormap, colormode, file, fontmap, + height, pageanchor, pageheight, pagewidth, pagex, pagey, + rotate, width, x, y.""" + return self.tk.call((self._w, 'postscript') + + self._options(cnf, kw)) + + def tag_raise(self, *args): + """Raise an item TAGORID given in ARGS + (optional above another item).""" + self.tk.call((self._w, 'raise') + args) + + lift = tkraise = tag_raise + + def scale(self, *args): + """Scale item TAGORID with XORIGIN, YORIGIN, XSCALE, YSCALE.""" + self.tk.call((self._w, 'scale') + args) + + def scan_mark(self, x, y): + """Remember the current X, Y coordinates.""" + self.tk.call(self._w, 'scan', 'mark', x, y) + + def scan_dragto(self, x, y, gain=10): + """Adjust the view of the canvas to GAIN times the + difference between X and Y and the coordinates given in + scan_mark.""" + self.tk.call(self._w, 'scan', 'dragto', x, y, gain) + + def select_adjust(self, tagOrId, index): + """Adjust the end of the selection near the cursor of an item TAGORID to index.""" + self.tk.call(self._w, 'select', 'adjust', tagOrId, index) + + def select_clear(self): + """Clear the selection if it is in this widget.""" + self.tk.call(self._w, 'select', 'clear') + + def select_from(self, tagOrId, index): + """Set the fixed end of a selection in item TAGORID to INDEX.""" + self.tk.call(self._w, 'select', 'from', tagOrId, index) + + def select_item(self): + """Return the item which has the selection.""" + return self.tk.call(self._w, 'select', 'item') or None + + def select_to(self, tagOrId, index): + """Set the variable end of a selection in item TAGORID to INDEX.""" + self.tk.call(self._w, 'select', 'to', tagOrId, index) + + def type(self, tagOrId): + """Return the type of the item TAGORID.""" + return self.tk.call(self._w, 'type', tagOrId) or None + + +_checkbutton_count = 0 + +class Checkbutton(Widget): + """Checkbutton widget which is either in on- or off-state.""" + + def __init__(self, master=None, cnf={}, **kw): + """Construct a checkbutton widget with the parent MASTER. + + Valid resource names: activebackground, activeforeground, anchor, + background, bd, bg, bitmap, borderwidth, command, cursor, + disabledforeground, fg, font, foreground, height, + highlightbackground, highlightcolor, highlightthickness, image, + indicatoron, justify, offvalue, onvalue, padx, pady, relief, + selectcolor, selectimage, state, takefocus, text, textvariable, + underline, variable, width, wraplength.""" + Widget.__init__(self, master, 'checkbutton', cnf, kw) + + def _setup(self, master, cnf): + # Because Checkbutton defaults to a variable with the same name as + # the widget, Checkbutton default names must be globally unique, + # not just unique within the parent widget. + if not cnf.get('name'): + global _checkbutton_count + name = self.__class__.__name__.lower() + _checkbutton_count += 1 + # To avoid collisions with ttk.Checkbutton, use the different + # name template. + cnf['name'] = f'!{name}-{_checkbutton_count}' + super()._setup(master, cnf) + + def deselect(self): + """Put the button in off-state.""" + self.tk.call(self._w, 'deselect') + + def flash(self): + """Flash the button.""" + self.tk.call(self._w, 'flash') + + def invoke(self): + """Toggle the button and invoke a command if given as resource.""" + return self.tk.call(self._w, 'invoke') + + def select(self): + """Put the button in on-state.""" + self.tk.call(self._w, 'select') + + def toggle(self): + """Toggle the button.""" + self.tk.call(self._w, 'toggle') + + +class Entry(Widget, XView): + """Entry widget which allows displaying simple text.""" + + def __init__(self, master=None, cnf={}, **kw): + """Construct an entry widget with the parent MASTER. + + Valid resource names: background, bd, bg, borderwidth, cursor, + exportselection, fg, font, foreground, highlightbackground, + highlightcolor, highlightthickness, insertbackground, + insertborderwidth, insertofftime, insertontime, insertwidth, + invalidcommand, invcmd, justify, relief, selectbackground, + selectborderwidth, selectforeground, show, state, takefocus, + textvariable, validate, validatecommand, vcmd, width, + xscrollcommand.""" + Widget.__init__(self, master, 'entry', cnf, kw) + + def delete(self, first, last=None): + """Delete text from FIRST to LAST (not included).""" + self.tk.call(self._w, 'delete', first, last) + + def get(self): + """Return the text.""" + return self.tk.call(self._w, 'get') + + def icursor(self, index): + """Insert cursor at INDEX.""" + self.tk.call(self._w, 'icursor', index) + + def index(self, index): + """Return position of cursor.""" + return self.tk.getint(self.tk.call( + self._w, 'index', index)) + + def insert(self, index, string): + """Insert STRING at INDEX.""" + self.tk.call(self._w, 'insert', index, string) + + def scan_mark(self, x): + """Remember the current X, Y coordinates.""" + self.tk.call(self._w, 'scan', 'mark', x) + + def scan_dragto(self, x): + """Adjust the view of the canvas to 10 times the + difference between X and Y and the coordinates given in + scan_mark.""" + self.tk.call(self._w, 'scan', 'dragto', x) + + def selection_adjust(self, index): + """Adjust the end of the selection near the cursor to INDEX.""" + self.tk.call(self._w, 'selection', 'adjust', index) + + select_adjust = selection_adjust + + def selection_clear(self): + """Clear the selection if it is in this widget.""" + self.tk.call(self._w, 'selection', 'clear') + + select_clear = selection_clear + + def selection_from(self, index): + """Set the fixed end of a selection to INDEX.""" + self.tk.call(self._w, 'selection', 'from', index) + + select_from = selection_from + + def selection_present(self): + """Return True if there are characters selected in the entry, False + otherwise.""" + return self.tk.getboolean( + self.tk.call(self._w, 'selection', 'present')) + + select_present = selection_present + + def selection_range(self, start, end): + """Set the selection from START to END (not included).""" + self.tk.call(self._w, 'selection', 'range', start, end) + + select_range = selection_range + + def selection_to(self, index): + """Set the variable end of a selection to INDEX.""" + self.tk.call(self._w, 'selection', 'to', index) + + select_to = selection_to + + +class Frame(Widget): + """Frame widget which may contain other widgets and can have a 3D border.""" + + def __init__(self, master=None, cnf={}, **kw): + """Construct a frame widget with the parent MASTER. + + Valid resource names: background, bd, bg, borderwidth, class, + colormap, container, cursor, height, highlightbackground, + highlightcolor, highlightthickness, relief, takefocus, visual, width.""" + cnf = _cnfmerge((cnf, kw)) + extra = () + if 'class_' in cnf: + extra = ('-class', cnf['class_']) + del cnf['class_'] + elif 'class' in cnf: + extra = ('-class', cnf['class']) + del cnf['class'] + Widget.__init__(self, master, 'frame', cnf, {}, extra) + + +class Label(Widget): + """Label widget which can display text and bitmaps.""" + + def __init__(self, master=None, cnf={}, **kw): + """Construct a label widget with the parent MASTER. + + STANDARD OPTIONS + + activebackground, activeforeground, anchor, + background, bitmap, borderwidth, cursor, + disabledforeground, font, foreground, + highlightbackground, highlightcolor, + highlightthickness, image, justify, + padx, pady, relief, takefocus, text, + textvariable, underline, wraplength + + WIDGET-SPECIFIC OPTIONS + + height, state, width + + """ + Widget.__init__(self, master, 'label', cnf, kw) + + +class Listbox(Widget, XView, YView): + """Listbox widget which can display a list of strings.""" + + def __init__(self, master=None, cnf={}, **kw): + """Construct a listbox widget with the parent MASTER. + + Valid resource names: background, bd, bg, borderwidth, cursor, + exportselection, fg, font, foreground, height, highlightbackground, + highlightcolor, highlightthickness, relief, selectbackground, + selectborderwidth, selectforeground, selectmode, setgrid, takefocus, + width, xscrollcommand, yscrollcommand, listvariable.""" + Widget.__init__(self, master, 'listbox', cnf, kw) + + def activate(self, index): + """Activate item identified by INDEX.""" + self.tk.call(self._w, 'activate', index) + + def bbox(self, index): + """Return a tuple of X1,Y1,X2,Y2 coordinates for a rectangle + which encloses the item identified by the given index.""" + return self._getints(self.tk.call(self._w, 'bbox', index)) or None + + def curselection(self): + """Return the indices of currently selected item.""" + return self._getints(self.tk.call(self._w, 'curselection')) or () + + def delete(self, first, last=None): + """Delete items from FIRST to LAST (included).""" + self.tk.call(self._w, 'delete', first, last) + + def get(self, first, last=None): + """Get list of items from FIRST to LAST (included).""" + if last is not None: + return self.tk.splitlist(self.tk.call( + self._w, 'get', first, last)) + else: + return self.tk.call(self._w, 'get', first) + + def index(self, index): + """Return index of item identified with INDEX.""" + i = self.tk.call(self._w, 'index', index) + if i == 'none': return None + return self.tk.getint(i) + + def insert(self, index, *elements): + """Insert ELEMENTS at INDEX.""" + self.tk.call((self._w, 'insert', index) + elements) + + def nearest(self, y): + """Get index of item which is nearest to y coordinate Y.""" + return self.tk.getint(self.tk.call( + self._w, 'nearest', y)) + + def scan_mark(self, x, y): + """Remember the current X, Y coordinates.""" + self.tk.call(self._w, 'scan', 'mark', x, y) + + def scan_dragto(self, x, y): + """Adjust the view of the listbox to 10 times the + difference between X and Y and the coordinates given in + scan_mark.""" + self.tk.call(self._w, 'scan', 'dragto', x, y) + + def see(self, index): + """Scroll such that INDEX is visible.""" + self.tk.call(self._w, 'see', index) + + def selection_anchor(self, index): + """Set the fixed end oft the selection to INDEX.""" + self.tk.call(self._w, 'selection', 'anchor', index) + + select_anchor = selection_anchor + + def selection_clear(self, first, last=None): + """Clear the selection from FIRST to LAST (included).""" + self.tk.call(self._w, + 'selection', 'clear', first, last) + + select_clear = selection_clear + + def selection_includes(self, index): + """Return True if INDEX is part of the selection.""" + return self.tk.getboolean(self.tk.call( + self._w, 'selection', 'includes', index)) + + select_includes = selection_includes + + def selection_set(self, first, last=None): + """Set the selection from FIRST to LAST (included) without + changing the currently selected elements.""" + self.tk.call(self._w, 'selection', 'set', first, last) + + select_set = selection_set + + def size(self): + """Return the number of elements in the listbox.""" + return self.tk.getint(self.tk.call(self._w, 'size')) + + def itemcget(self, index, option): + """Return the resource value for an ITEM and an OPTION.""" + return self.tk.call( + (self._w, 'itemcget') + (index, '-'+option)) + + def itemconfigure(self, index, cnf=None, **kw): + """Configure resources of an ITEM. + + The values for resources are specified as keyword arguments. + To get an overview about the allowed keyword arguments + call the method without arguments. + Valid resource names: background, bg, foreground, fg, + selectbackground, selectforeground.""" + return self._configure(('itemconfigure', index), cnf, kw) + + itemconfig = itemconfigure + + +class Menu(Widget): + """Menu widget which allows displaying menu bars, pull-down menus and pop-up menus.""" + + def __init__(self, master=None, cnf={}, **kw): + """Construct menu widget with the parent MASTER. + + Valid resource names: activebackground, activeborderwidth, + activeforeground, background, bd, bg, borderwidth, cursor, + disabledforeground, fg, font, foreground, postcommand, relief, + selectcolor, takefocus, tearoff, tearoffcommand, title, type.""" + Widget.__init__(self, master, 'menu', cnf, kw) + + def tk_popup(self, x, y, entry=""): + """Post the menu at position X,Y with entry ENTRY.""" + self.tk.call('tk_popup', self._w, x, y, entry) + + def activate(self, index): + """Activate entry at INDEX.""" + self.tk.call(self._w, 'activate', index) + + def add(self, itemType, cnf={}, **kw): + """Internal function.""" + self.tk.call((self._w, 'add', itemType) + + self._options(cnf, kw)) + + def add_cascade(self, cnf={}, **kw): + """Add hierarchical menu item.""" + self.add('cascade', cnf or kw) + + def add_checkbutton(self, cnf={}, **kw): + """Add checkbutton menu item.""" + self.add('checkbutton', cnf or kw) + + def add_command(self, cnf={}, **kw): + """Add command menu item.""" + self.add('command', cnf or kw) + + def add_radiobutton(self, cnf={}, **kw): + """Add radio menu item.""" + self.add('radiobutton', cnf or kw) + + def add_separator(self, cnf={}, **kw): + """Add separator.""" + self.add('separator', cnf or kw) + + def insert(self, index, itemType, cnf={}, **kw): + """Internal function.""" + self.tk.call((self._w, 'insert', index, itemType) + + self._options(cnf, kw)) + + def insert_cascade(self, index, cnf={}, **kw): + """Add hierarchical menu item at INDEX.""" + self.insert(index, 'cascade', cnf or kw) + + def insert_checkbutton(self, index, cnf={}, **kw): + """Add checkbutton menu item at INDEX.""" + self.insert(index, 'checkbutton', cnf or kw) + + def insert_command(self, index, cnf={}, **kw): + """Add command menu item at INDEX.""" + self.insert(index, 'command', cnf or kw) + + def insert_radiobutton(self, index, cnf={}, **kw): + """Add radio menu item at INDEX.""" + self.insert(index, 'radiobutton', cnf or kw) + + def insert_separator(self, index, cnf={}, **kw): + """Add separator at INDEX.""" + self.insert(index, 'separator', cnf or kw) + + def delete(self, index1, index2=None): + """Delete menu items between INDEX1 and INDEX2 (included).""" + if index2 is None: + index2 = index1 + + num_index1, num_index2 = self.index(index1), self.index(index2) + if (num_index1 is None) or (num_index2 is None): + num_index1, num_index2 = 0, -1 + + for i in range(num_index1, num_index2 + 1): + if 'command' in self.entryconfig(i): + c = str(self.entrycget(i, 'command')) + if c: + self.deletecommand(c) + self.tk.call(self._w, 'delete', index1, index2) + + def entrycget(self, index, option): + """Return the resource value of a menu item for OPTION at INDEX.""" + return self.tk.call(self._w, 'entrycget', index, '-' + option) + + def entryconfigure(self, index, cnf=None, **kw): + """Configure a menu item at INDEX.""" + return self._configure(('entryconfigure', index), cnf, kw) + + entryconfig = entryconfigure + + def index(self, index): + """Return the index of a menu item identified by INDEX.""" + i = self.tk.call(self._w, 'index', index) + return None if i in ('', 'none') else self.tk.getint(i) # GH-103685. + + def invoke(self, index): + """Invoke a menu item identified by INDEX and execute + the associated command.""" + return self.tk.call(self._w, 'invoke', index) + + def post(self, x, y): + """Display a menu at position X,Y.""" + self.tk.call(self._w, 'post', x, y) + + def type(self, index): + """Return the type of the menu item at INDEX.""" + return self.tk.call(self._w, 'type', index) + + def unpost(self): + """Unmap a menu.""" + self.tk.call(self._w, 'unpost') + + def xposition(self, index): # new in Tk 8.5 + """Return the x-position of the leftmost pixel of the menu item + at INDEX.""" + return self.tk.getint(self.tk.call(self._w, 'xposition', index)) + + def yposition(self, index): + """Return the y-position of the topmost pixel of the menu item at INDEX.""" + return self.tk.getint(self.tk.call( + self._w, 'yposition', index)) + + +class Menubutton(Widget): + """Menubutton widget, obsolete since Tk8.0.""" + + def __init__(self, master=None, cnf={}, **kw): + Widget.__init__(self, master, 'menubutton', cnf, kw) + + +class Message(Widget): + """Message widget to display multiline text. Obsolete since Label does it too.""" + + def __init__(self, master=None, cnf={}, **kw): + Widget.__init__(self, master, 'message', cnf, kw) + + +class Radiobutton(Widget): + """Radiobutton widget which shows only one of several buttons in on-state.""" + + def __init__(self, master=None, cnf={}, **kw): + """Construct a radiobutton widget with the parent MASTER. + + Valid resource names: activebackground, activeforeground, anchor, + background, bd, bg, bitmap, borderwidth, command, cursor, + disabledforeground, fg, font, foreground, height, + highlightbackground, highlightcolor, highlightthickness, image, + indicatoron, justify, padx, pady, relief, selectcolor, selectimage, + state, takefocus, text, textvariable, underline, value, variable, + width, wraplength.""" + Widget.__init__(self, master, 'radiobutton', cnf, kw) + + def deselect(self): + """Put the button in off-state.""" + + self.tk.call(self._w, 'deselect') + + def flash(self): + """Flash the button.""" + self.tk.call(self._w, 'flash') + + def invoke(self): + """Toggle the button and invoke a command if given as resource.""" + return self.tk.call(self._w, 'invoke') + + def select(self): + """Put the button in on-state.""" + self.tk.call(self._w, 'select') + + +class Scale(Widget): + """Scale widget which can display a numerical scale.""" + + def __init__(self, master=None, cnf={}, **kw): + """Construct a scale widget with the parent MASTER. + + Valid resource names: activebackground, background, bigincrement, bd, + bg, borderwidth, command, cursor, digits, fg, font, foreground, from, + highlightbackground, highlightcolor, highlightthickness, label, + length, orient, relief, repeatdelay, repeatinterval, resolution, + showvalue, sliderlength, sliderrelief, state, takefocus, + tickinterval, to, troughcolor, variable, width.""" + Widget.__init__(self, master, 'scale', cnf, kw) + + def get(self): + """Get the current value as integer or float.""" + value = self.tk.call(self._w, 'get') + try: + return self.tk.getint(value) + except (ValueError, TypeError, TclError): + return self.tk.getdouble(value) + + def set(self, value): + """Set the value to VALUE.""" + self.tk.call(self._w, 'set', value) + + def coords(self, value=None): + """Return a tuple (X,Y) of the point along the centerline of the + trough that corresponds to VALUE or the current value if None is + given.""" + + return self._getints(self.tk.call(self._w, 'coords', value)) + + def identify(self, x, y): + """Return where the point X,Y lies. Valid return values are "slider", + "though1" and "though2".""" + return self.tk.call(self._w, 'identify', x, y) + + +class Scrollbar(Widget): + """Scrollbar widget which displays a slider at a certain position.""" + + def __init__(self, master=None, cnf={}, **kw): + """Construct a scrollbar widget with the parent MASTER. + + Valid resource names: activebackground, activerelief, + background, bd, bg, borderwidth, command, cursor, + elementborderwidth, highlightbackground, + highlightcolor, highlightthickness, jump, orient, + relief, repeatdelay, repeatinterval, takefocus, + troughcolor, width.""" + Widget.__init__(self, master, 'scrollbar', cnf, kw) + + def activate(self, index=None): + """Marks the element indicated by index as active. + The only index values understood by this method are "arrow1", + "slider", or "arrow2". If any other value is specified then no + element of the scrollbar will be active. If index is not specified, + the method returns the name of the element that is currently active, + or None if no element is active.""" + return self.tk.call(self._w, 'activate', index) or None + + def delta(self, deltax, deltay): + """Return the fractional change of the scrollbar setting if it + would be moved by DELTAX or DELTAY pixels.""" + return self.tk.getdouble( + self.tk.call(self._w, 'delta', deltax, deltay)) + + def fraction(self, x, y): + """Return the fractional value which corresponds to a slider + position of X,Y.""" + return self.tk.getdouble(self.tk.call(self._w, 'fraction', x, y)) + + def identify(self, x, y): + """Return the element under position X,Y as one of + "arrow1","slider","arrow2" or "".""" + return self.tk.call(self._w, 'identify', x, y) + + def get(self): + """Return the current fractional values (upper and lower end) + of the slider position.""" + return self._getdoubles(self.tk.call(self._w, 'get')) + + def set(self, first, last): + """Set the fractional values of the slider position (upper and + lower ends as value between 0 and 1).""" + self.tk.call(self._w, 'set', first, last) + + +class Text(Widget, XView, YView): + """Text widget which can display text in various forms.""" + + def __init__(self, master=None, cnf={}, **kw): + """Construct a text widget with the parent MASTER. + + STANDARD OPTIONS + + background, borderwidth, cursor, + exportselection, font, foreground, + highlightbackground, highlightcolor, + highlightthickness, insertbackground, + insertborderwidth, insertofftime, + insertontime, insertwidth, padx, pady, + relief, selectbackground, + selectborderwidth, selectforeground, + setgrid, takefocus, + xscrollcommand, yscrollcommand, + + WIDGET-SPECIFIC OPTIONS + + autoseparators, height, maxundo, + spacing1, spacing2, spacing3, + state, tabs, undo, width, wrap, + + """ + Widget.__init__(self, master, 'text', cnf, kw) + + def bbox(self, index): + """Return a tuple of (x,y,width,height) which gives the bounding + box of the visible part of the character at the given index.""" + return self._getints( + self.tk.call(self._w, 'bbox', index)) or None + + def compare(self, index1, op, index2): + """Return whether between index INDEX1 and index INDEX2 the + relation OP is satisfied. OP is one of <, <=, ==, >=, >, or !=.""" + return self.tk.getboolean(self.tk.call( + self._w, 'compare', index1, op, index2)) + + def count(self, index1, index2, *options, return_ints=False): # new in Tk 8.5 + """Counts the number of relevant things between the two indices. + + If INDEX1 is after INDEX2, the result will be a negative number + (and this holds for each of the possible options). + + The actual items which are counted depends on the options given. + The result is a tuple of integers, one for the result of each + counting option given, if more than one option is specified or + return_ints is false (default), otherwise it is an integer. + Valid counting options are "chars", "displaychars", + "displayindices", "displaylines", "indices", "lines", "xpixels" + and "ypixels". The default value, if no option is specified, is + "indices". There is an additional possible option "update", + which if given then all subsequent options ensure that any + possible out of date information is recalculated. + """ + options = ['-%s' % arg for arg in options] + res = self.tk.call(self._w, 'count', *options, index1, index2) + if not isinstance(res, int): + res = self._getints(res) + if len(res) == 1: + res, = res + if not return_ints: + if not res: + res = None + elif len(options) <= 1: + res = (res,) + return res + + def debug(self, boolean=None): + """Turn on the internal consistency checks of the B-Tree inside the text + widget according to BOOLEAN.""" + if boolean is None: + return self.tk.getboolean(self.tk.call(self._w, 'debug')) + self.tk.call(self._w, 'debug', boolean) + + def delete(self, index1, index2=None): + """Delete the characters between INDEX1 and INDEX2 (not included).""" + self.tk.call(self._w, 'delete', index1, index2) + + def dlineinfo(self, index): + """Return tuple (x,y,width,height,baseline) giving the bounding box + and baseline position of the visible part of the line containing + the character at INDEX.""" + return self._getints(self.tk.call(self._w, 'dlineinfo', index)) + + def dump(self, index1, index2=None, command=None, **kw): + """Return the contents of the widget between index1 and index2. + + The type of contents returned in filtered based on the keyword + parameters; if 'all', 'image', 'mark', 'tag', 'text', or 'window' are + given and true, then the corresponding items are returned. The result + is a list of triples of the form (key, value, index). If none of the + keywords are true then 'all' is used by default. + + If the 'command' argument is given, it is called once for each element + of the list of triples, with the values of each triple serving as the + arguments to the function. In this case the list is not returned.""" + args = [] + func_name = None + result = None + if not command: + # Never call the dump command without the -command flag, since the + # output could involve Tcl quoting and would be a pain to parse + # right. Instead just set the command to build a list of triples + # as if we had done the parsing. + result = [] + def append_triple(key, value, index, result=result): + result.append((key, value, index)) + command = append_triple + try: + if not isinstance(command, str): + func_name = command = self._register(command) + args += ["-command", command] + for key in kw: + if kw[key]: args.append("-" + key) + args.append(index1) + if index2: + args.append(index2) + self.tk.call(self._w, "dump", *args) + return result + finally: + if func_name: + self.deletecommand(func_name) + + ## new in tk8.4 + def edit(self, *args): + """Internal method + + This method controls the undo mechanism and + the modified flag. The exact behavior of the + command depends on the option argument that + follows the edit argument. The following forms + of the command are currently supported: + + edit_modified, edit_redo, edit_reset, edit_separator + and edit_undo + + """ + return self.tk.call(self._w, 'edit', *args) + + def edit_modified(self, arg=None): + """Get or Set the modified flag + + If arg is not specified, returns the modified + flag of the widget. The insert, delete, edit undo and + edit redo commands or the user can set or clear the + modified flag. If boolean is specified, sets the + modified flag of the widget to arg. + """ + return self.edit("modified", arg) + + def edit_redo(self): + """Redo the last undone edit + + When the undo option is true, reapplies the last + undone edits provided no other edits were done since + then. Generates an error when the redo stack is empty. + Does nothing when the undo option is false. + """ + return self.edit("redo") + + def edit_reset(self): + """Clears the undo and redo stacks + """ + return self.edit("reset") + + def edit_separator(self): + """Inserts a separator (boundary) on the undo stack. + + Does nothing when the undo option is false + """ + return self.edit("separator") + + def edit_undo(self): + """Undoes the last edit action + + If the undo option is true. An edit action is defined + as all the insert and delete commands that are recorded + on the undo stack in between two separators. Generates + an error when the undo stack is empty. Does nothing + when the undo option is false + """ + return self.edit("undo") + + def get(self, index1, index2=None): + """Return the text from INDEX1 to INDEX2 (not included).""" + return self.tk.call(self._w, 'get', index1, index2) + # (Image commands are new in 8.0) + + def image_cget(self, index, option): + """Return the value of OPTION of an embedded image at INDEX.""" + if option[:1] != "-": + option = "-" + option + if option[-1:] == "_": + option = option[:-1] + return self.tk.call(self._w, "image", "cget", index, option) + + def image_configure(self, index, cnf=None, **kw): + """Configure an embedded image at INDEX.""" + return self._configure(('image', 'configure', index), cnf, kw) + + def image_create(self, index, cnf={}, **kw): + """Create an embedded image at INDEX.""" + return self.tk.call( + self._w, "image", "create", index, + *self._options(cnf, kw)) + + def image_names(self): + """Return all names of embedded images in this widget.""" + return self.tk.call(self._w, "image", "names") + + def index(self, index): + """Return the index in the form line.char for INDEX.""" + return str(self.tk.call(self._w, 'index', index)) + + def insert(self, index, chars, *args): + """Insert CHARS before the characters at INDEX. An additional + tag can be given in ARGS. Additional CHARS and tags can follow in ARGS.""" + self.tk.call((self._w, 'insert', index, chars) + args) + + def mark_gravity(self, markName, direction=None): + """Change the gravity of a mark MARKNAME to DIRECTION (LEFT or RIGHT). + Return the current value if None is given for DIRECTION.""" + return self.tk.call( + (self._w, 'mark', 'gravity', markName, direction)) + + def mark_names(self): + """Return all mark names.""" + return self.tk.splitlist(self.tk.call( + self._w, 'mark', 'names')) + + def mark_set(self, markName, index): + """Set mark MARKNAME before the character at INDEX.""" + self.tk.call(self._w, 'mark', 'set', markName, index) + + def mark_unset(self, *markNames): + """Delete all marks in MARKNAMES.""" + self.tk.call((self._w, 'mark', 'unset') + markNames) + + def mark_next(self, index): + """Return the name of the next mark after INDEX.""" + return self.tk.call(self._w, 'mark', 'next', index) or None + + def mark_previous(self, index): + """Return the name of the previous mark before INDEX.""" + return self.tk.call(self._w, 'mark', 'previous', index) or None + + def peer_create(self, newPathName, cnf={}, **kw): # new in Tk 8.5 + """Creates a peer text widget with the given newPathName, and any + optional standard configuration options. By default the peer will + have the same start and end line as the parent widget, but + these can be overridden with the standard configuration options.""" + self.tk.call(self._w, 'peer', 'create', newPathName, + *self._options(cnf, kw)) + + def peer_names(self): # new in Tk 8.5 + """Returns a list of peers of this widget (this does not include + the widget itself).""" + return self.tk.splitlist(self.tk.call(self._w, 'peer', 'names')) + + def replace(self, index1, index2, chars, *args): # new in Tk 8.5 + """Replaces the range of characters between index1 and index2 with + the given characters and tags specified by args. + + See the method insert for some more information about args, and the + method delete for information about the indices.""" + self.tk.call(self._w, 'replace', index1, index2, chars, *args) + + def scan_mark(self, x, y): + """Remember the current X, Y coordinates.""" + self.tk.call(self._w, 'scan', 'mark', x, y) + + def scan_dragto(self, x, y): + """Adjust the view of the text to 10 times the + difference between X and Y and the coordinates given in + scan_mark.""" + self.tk.call(self._w, 'scan', 'dragto', x, y) + + def search(self, pattern, index, stopindex=None, + forwards=None, backwards=None, exact=None, + regexp=None, nocase=None, count=None, elide=None): + """Search PATTERN beginning from INDEX until STOPINDEX. + Return the index of the first character of a match or an + empty string.""" + args = [self._w, 'search'] + if forwards: args.append('-forwards') + if backwards: args.append('-backwards') + if exact: args.append('-exact') + if regexp: args.append('-regexp') + if nocase: args.append('-nocase') + if elide: args.append('-elide') + if count: args.append('-count'); args.append(count) + if pattern and pattern[0] == '-': args.append('--') + args.append(pattern) + args.append(index) + if stopindex: args.append(stopindex) + return str(self.tk.call(tuple(args))) + + def see(self, index): + """Scroll such that the character at INDEX is visible.""" + self.tk.call(self._w, 'see', index) + + def tag_add(self, tagName, index1, *args): + """Add tag TAGNAME to all characters between INDEX1 and index2 in ARGS. + Additional pairs of indices may follow in ARGS.""" + self.tk.call( + (self._w, 'tag', 'add', tagName, index1) + args) + + def tag_unbind(self, tagName, sequence, funcid=None): + """Unbind for all characters with TAGNAME for event SEQUENCE the + function identified with FUNCID.""" + return self._unbind((self._w, 'tag', 'bind', tagName, sequence), funcid) + + def tag_bind(self, tagName, sequence, func, add=None): + """Bind to all characters with TAGNAME at event SEQUENCE a call to function FUNC. + + An additional boolean parameter ADD specifies whether FUNC will be + called additionally to the other bound function or whether it will + replace the previous function. See bind for the return value.""" + return self._bind((self._w, 'tag', 'bind', tagName), + sequence, func, add) + + def _tag_bind(self, tagName, sequence=None, func=None, add=None): + # For tests only + return self._bind((self._w, 'tag', 'bind', tagName), + sequence, func, add) + + def tag_cget(self, tagName, option): + """Return the value of OPTION for tag TAGNAME.""" + if option[:1] != '-': + option = '-' + option + if option[-1:] == '_': + option = option[:-1] + return self.tk.call(self._w, 'tag', 'cget', tagName, option) + + def tag_configure(self, tagName, cnf=None, **kw): + """Configure a tag TAGNAME.""" + return self._configure(('tag', 'configure', tagName), cnf, kw) + + tag_config = tag_configure + + def tag_delete(self, *tagNames): + """Delete all tags in TAGNAMES.""" + self.tk.call((self._w, 'tag', 'delete') + tagNames) + + def tag_lower(self, tagName, belowThis=None): + """Change the priority of tag TAGNAME such that it is lower + than the priority of BELOWTHIS.""" + self.tk.call(self._w, 'tag', 'lower', tagName, belowThis) + + def tag_names(self, index=None): + """Return a list of all tag names.""" + return self.tk.splitlist( + self.tk.call(self._w, 'tag', 'names', index)) + + def tag_nextrange(self, tagName, index1, index2=None): + """Return a list of start and end index for the first sequence of + characters between INDEX1 and INDEX2 which all have tag TAGNAME. + The text is searched forward from INDEX1.""" + return self.tk.splitlist(self.tk.call( + self._w, 'tag', 'nextrange', tagName, index1, index2)) + + def tag_prevrange(self, tagName, index1, index2=None): + """Return a list of start and end index for the first sequence of + characters between INDEX1 and INDEX2 which all have tag TAGNAME. + The text is searched backwards from INDEX1.""" + return self.tk.splitlist(self.tk.call( + self._w, 'tag', 'prevrange', tagName, index1, index2)) + + def tag_raise(self, tagName, aboveThis=None): + """Change the priority of tag TAGNAME such that it is higher + than the priority of ABOVETHIS.""" + self.tk.call( + self._w, 'tag', 'raise', tagName, aboveThis) + + def tag_ranges(self, tagName): + """Return a list of ranges of text which have tag TAGNAME.""" + return self.tk.splitlist(self.tk.call( + self._w, 'tag', 'ranges', tagName)) + + def tag_remove(self, tagName, index1, index2=None): + """Remove tag TAGNAME from all characters between INDEX1 and INDEX2.""" + self.tk.call( + self._w, 'tag', 'remove', tagName, index1, index2) + + def window_cget(self, index, option): + """Return the value of OPTION of an embedded window at INDEX.""" + if option[:1] != '-': + option = '-' + option + if option[-1:] == '_': + option = option[:-1] + return self.tk.call(self._w, 'window', 'cget', index, option) + + def window_configure(self, index, cnf=None, **kw): + """Configure an embedded window at INDEX.""" + return self._configure(('window', 'configure', index), cnf, kw) + + window_config = window_configure + + def window_create(self, index, cnf={}, **kw): + """Create a window at INDEX.""" + self.tk.call( + (self._w, 'window', 'create', index) + + self._options(cnf, kw)) + + def window_names(self): + """Return all names of embedded windows in this widget.""" + return self.tk.splitlist( + self.tk.call(self._w, 'window', 'names')) + + def yview_pickplace(self, *what): + """Obsolete function, use see.""" + self.tk.call((self._w, 'yview', '-pickplace') + what) + + +class _setit: + """Internal class. It wraps the command in the widget OptionMenu.""" + + def __init__(self, var, value, callback=None): + self.__value = value + self.__var = var + self.__callback = callback + + def __call__(self, *args): + self.__var.set(self.__value) + if self.__callback is not None: + self.__callback(self.__value, *args) + + +class OptionMenu(Menubutton): + """OptionMenu which allows the user to select a value from a menu.""" + + def __init__(self, master, variable, value, *values, **kwargs): + """Construct an optionmenu widget with the parent MASTER, with + the resource textvariable set to VARIABLE, the initially selected + value VALUE, the other menu values VALUES and an additional + keyword argument command.""" + kw = {"borderwidth": 2, "textvariable": variable, + "indicatoron": 1, "relief": RAISED, "anchor": "c", + "highlightthickness": 2} + Widget.__init__(self, master, "menubutton", kw) + self.widgetName = 'tk_optionMenu' + menu = self.__menu = Menu(self, name="menu", tearoff=0) + self.menuname = menu._w + # 'command' is the only supported keyword + callback = kwargs.get('command') + if 'command' in kwargs: + del kwargs['command'] + if kwargs: + raise TclError('unknown option -'+next(iter(kwargs))) + menu.add_command(label=value, + command=_setit(variable, value, callback)) + for v in values: + menu.add_command(label=v, + command=_setit(variable, v, callback)) + self["menu"] = menu + + def __getitem__(self, name): + if name == 'menu': + return self.__menu + return Widget.__getitem__(self, name) + + def destroy(self): + """Destroy this widget and the associated menu.""" + Menubutton.destroy(self) + self.__menu = None + + +class Image: + """Base class for images.""" + _last_id = 0 + + def __init__(self, imgtype, name=None, cnf={}, master=None, **kw): + self.name = None + if master is None: + master = _get_default_root('create image') + self.tk = getattr(master, 'tk', master) + if not name: + Image._last_id += 1 + name = "pyimage%r" % (Image._last_id,) # tk itself would use image + if kw and cnf: cnf = _cnfmerge((cnf, kw)) + elif kw: cnf = kw + options = () + for k, v in cnf.items(): + options = options + ('-'+k, v) + self.tk.call(('image', 'create', imgtype, name,) + options) + self.name = name + + def __str__(self): return self.name + + def __del__(self): + if self.name: + try: + self.tk.call('image', 'delete', self.name) + except TclError: + # May happen if the root was destroyed + pass + + def __setitem__(self, key, value): + self.tk.call(self.name, 'configure', '-'+key, value) + + def __getitem__(self, key): + return self.tk.call(self.name, 'configure', '-'+key) + + def configure(self, **kw): + """Configure the image.""" + res = () + for k, v in _cnfmerge(kw).items(): + if v is not None: + if k[-1] == '_': k = k[:-1] + res = res + ('-'+k, v) + self.tk.call((self.name, 'config') + res) + + config = configure + + def height(self): + """Return the height of the image.""" + return self.tk.getint( + self.tk.call('image', 'height', self.name)) + + def type(self): + """Return the type of the image, e.g. "photo" or "bitmap".""" + return self.tk.call('image', 'type', self.name) + + def width(self): + """Return the width of the image.""" + return self.tk.getint( + self.tk.call('image', 'width', self.name)) + + +class PhotoImage(Image): + """Widget which can display images in PGM, PPM, GIF, PNG format.""" + + def __init__(self, name=None, cnf={}, master=None, **kw): + """Create an image with NAME. + + Valid resource names: data, format, file, gamma, height, palette, + width.""" + Image.__init__(self, 'photo', name, cnf, master, **kw) + + def blank(self): + """Display a transparent image.""" + self.tk.call(self.name, 'blank') + + def cget(self, option): + """Return the value of OPTION.""" + return self.tk.call(self.name, 'cget', '-' + option) + # XXX config + + def __getitem__(self, key): + return self.tk.call(self.name, 'cget', '-' + key) + + def copy(self, *, from_coords=None, zoom=None, subsample=None): + """Return a new PhotoImage with the same image as this widget. + + The FROM_COORDS option specifies a rectangular sub-region of the + source image to be copied. It must be a tuple or a list of 1 to 4 + integers (x1, y1, x2, y2). (x1, y1) and (x2, y2) specify diagonally + opposite corners of the rectangle. If x2 and y2 are not specified, + the default value is the bottom-right corner of the source image. + The pixels copied will include the left and top edges of the + specified rectangle but not the bottom or right edges. If the + FROM_COORDS option is not given, the default is the whole source + image. + + If SUBSAMPLE or ZOOM are specified, the image is transformed as in + the subsample() or zoom() methods. The value must be a single + integer or a pair of integers. + """ + destImage = PhotoImage(master=self.tk) + destImage.copy_replace(self, from_coords=from_coords, + zoom=zoom, subsample=subsample) + return destImage + + def zoom(self, x, y='', *, from_coords=None): + """Return a new PhotoImage with the same image as this widget + but zoom it with a factor of X in the X direction and Y in the Y + direction. If Y is not given, the default value is the same as X. + + The FROM_COORDS option specifies a rectangular sub-region of the + source image to be copied, as in the copy() method. + """ + if y=='': y=x + return self.copy(zoom=(x, y), from_coords=from_coords) + + def subsample(self, x, y='', *, from_coords=None): + """Return a new PhotoImage based on the same image as this widget + but use only every Xth or Yth pixel. If Y is not given, the + default value is the same as X. + + The FROM_COORDS option specifies a rectangular sub-region of the + source image to be copied, as in the copy() method. + """ + if y=='': y=x + return self.copy(subsample=(x, y), from_coords=from_coords) + + def copy_replace(self, sourceImage, *, from_coords=None, to=None, shrink=False, + zoom=None, subsample=None, compositingrule=None): + """Copy a region from the source image (which must be a PhotoImage) to + this image, possibly with pixel zooming and/or subsampling. If no + options are specified, this command copies the whole of the source + image into this image, starting at coordinates (0, 0). + + The FROM_COORDS option specifies a rectangular sub-region of the + source image to be copied. It must be a tuple or a list of 1 to 4 + integers (x1, y1, x2, y2). (x1, y1) and (x2, y2) specify diagonally + opposite corners of the rectangle. If x2 and y2 are not specified, + the default value is the bottom-right corner of the source image. + The pixels copied will include the left and top edges of the + specified rectangle but not the bottom or right edges. If the + FROM_COORDS option is not given, the default is the whole source + image. + + The TO option specifies a rectangular sub-region of the destination + image to be affected. It must be a tuple or a list of 1 to 4 + integers (x1, y1, x2, y2). (x1, y1) and (x2, y2) specify diagonally + opposite corners of the rectangle. If x2 and y2 are not specified, + the default value is (x1,y1) plus the size of the source region + (after subsampling and zooming, if specified). If x2 and y2 are + specified, the source region will be replicated if necessary to fill + the destination region in a tiled fashion. + + If SHRINK is true, the size of the destination image should be + reduced, if necessary, so that the region being copied into is at + the bottom-right corner of the image. + + If SUBSAMPLE or ZOOM are specified, the image is transformed as in + the subsample() or zoom() methods. The value must be a single + integer or a pair of integers. + + The COMPOSITINGRULE option specifies how transparent pixels in the + source image are combined with the destination image. When a + compositing rule of 'overlay' is set, the old contents of the + destination image are visible, as if the source image were printed + on a piece of transparent film and placed over the top of the + destination. When a compositing rule of 'set' is set, the old + contents of the destination image are discarded and the source image + is used as-is. The default compositing rule is 'overlay'. + """ + options = [] + if from_coords is not None: + options.extend(('-from', *from_coords)) + if to is not None: + options.extend(('-to', *to)) + if shrink: + options.append('-shrink') + if zoom is not None: + if not isinstance(zoom, (tuple, list)): + zoom = (zoom,) + options.extend(('-zoom', *zoom)) + if subsample is not None: + if not isinstance(subsample, (tuple, list)): + subsample = (subsample,) + options.extend(('-subsample', *subsample)) + if compositingrule: + options.extend(('-compositingrule', compositingrule)) + self.tk.call(self.name, 'copy', sourceImage, *options) + + def get(self, x, y): + """Return the color (red, green, blue) of the pixel at X,Y.""" + return self.tk.call(self.name, 'get', x, y) + + def put(self, data, to=None): + """Put row formatted colors to image starting from + position TO, e.g. image.put("{red green} {blue yellow}", to=(4,6))""" + args = (self.name, 'put', data) + if to: + if to[0] == '-to': + to = to[1:] + args = args + ('-to',) + tuple(to) + self.tk.call(args) + + def read(self, filename, format=None, *, from_coords=None, to=None, shrink=False): + """Reads image data from the file named FILENAME into the image. + + The FORMAT option specifies the format of the image data in the + file. + + The FROM_COORDS option specifies a rectangular sub-region of the image + file data to be copied to the destination image. It must be a tuple + or a list of 1 to 4 integers (x1, y1, x2, y2). (x1, y1) and + (x2, y2) specify diagonally opposite corners of the rectangle. If + x2 and y2 are not specified, the default value is the bottom-right + corner of the source image. The default, if this option is not + specified, is the whole of the image in the image file. + + The TO option specifies the coordinates of the top-left corner of + the region of the image into which data from filename are to be + read. The default is (0, 0). + + If SHRINK is true, the size of the destination image will be + reduced, if necessary, so that the region into which the image file + data are read is at the bottom-right corner of the image. + """ + options = () + if format is not None: + options += ('-format', format) + if from_coords is not None: + options += ('-from', *from_coords) + if shrink: + options += ('-shrink',) + if to is not None: + options += ('-to', *to) + self.tk.call(self.name, 'read', filename, *options) + + def write(self, filename, format=None, from_coords=None, *, + background=None, grayscale=False): + """Writes image data from the image to a file named FILENAME. + + The FORMAT option specifies the name of the image file format + handler to be used to write the data to the file. If this option + is not given, the format is guessed from the file extension. + + The FROM_COORDS option specifies a rectangular region of the image + to be written to the image file. It must be a tuple or a list of 1 + to 4 integers (x1, y1, x2, y2). If only x1 and y1 are specified, + the region extends from (x1,y1) to the bottom-right corner of the + image. If all four coordinates are given, they specify diagonally + opposite corners of the rectangular region. The default, if this + option is not given, is the whole image. + + If BACKGROUND is specified, the data will not contain any + transparency information. In all transparent pixels the color will + be replaced by the specified color. + + If GRAYSCALE is true, the data will not contain color information. + All pixel data will be transformed into grayscale. + """ + options = () + if format is not None: + options += ('-format', format) + if from_coords is not None: + options += ('-from', *from_coords) + if grayscale: + options += ('-grayscale',) + if background is not None: + options += ('-background', background) + self.tk.call(self.name, 'write', filename, *options) + + def data(self, format=None, *, from_coords=None, + background=None, grayscale=False): + """Returns image data. + + The FORMAT option specifies the name of the image file format + handler to be used. If this option is not given, this method uses + a format that consists of a tuple (one element per row) of strings + containings space separated (one element per pixel/column) colors + in “#RRGGBB” format (where RR is a pair of hexadecimal digits for + the red channel, GG for green, and BB for blue). + + The FROM_COORDS option specifies a rectangular region of the image + to be returned. It must be a tuple or a list of 1 to 4 integers + (x1, y1, x2, y2). If only x1 and y1 are specified, the region + extends from (x1,y1) to the bottom-right corner of the image. If + all four coordinates are given, they specify diagonally opposite + corners of the rectangular region, including (x1, y1) and excluding + (x2, y2). The default, if this option is not given, is the whole + image. + + If BACKGROUND is specified, the data will not contain any + transparency information. In all transparent pixels the color will + be replaced by the specified color. + + If GRAYSCALE is true, the data will not contain color information. + All pixel data will be transformed into grayscale. + """ + options = () + if format is not None: + options += ('-format', format) + if from_coords is not None: + options += ('-from', *from_coords) + if grayscale: + options += ('-grayscale',) + if background is not None: + options += ('-background', background) + data = self.tk.call(self.name, 'data', *options) + if isinstance(data, str): # For wantobjects = 0. + if format is None: + data = self.tk.splitlist(data) + else: + data = bytes(data, 'latin1') + return data + + def transparency_get(self, x, y): + """Return True if the pixel at x,y is transparent.""" + return self.tk.getboolean(self.tk.call( + self.name, 'transparency', 'get', x, y)) + + def transparency_set(self, x, y, boolean): + """Set the transparency of the pixel at x,y.""" + self.tk.call(self.name, 'transparency', 'set', x, y, boolean) + + +class BitmapImage(Image): + """Widget which can display images in XBM format.""" + + def __init__(self, name=None, cnf={}, master=None, **kw): + """Create a bitmap with NAME. + + Valid resource names: background, data, file, foreground, maskdata, maskfile.""" + Image.__init__(self, 'bitmap', name, cnf, master, **kw) + + +def image_names(): + tk = _get_default_root('use image_names()').tk + return tk.splitlist(tk.call('image', 'names')) + + +def image_types(): + tk = _get_default_root('use image_types()').tk + return tk.splitlist(tk.call('image', 'types')) + + +class Spinbox(Widget, XView): + """spinbox widget.""" + + def __init__(self, master=None, cnf={}, **kw): + """Construct a spinbox widget with the parent MASTER. + + STANDARD OPTIONS + + activebackground, background, borderwidth, + cursor, exportselection, font, foreground, + highlightbackground, highlightcolor, + highlightthickness, insertbackground, + insertborderwidth, insertofftime, + insertontime, insertwidth, justify, relief, + repeatdelay, repeatinterval, + selectbackground, selectborderwidth + selectforeground, takefocus, textvariable + xscrollcommand. + + WIDGET-SPECIFIC OPTIONS + + buttonbackground, buttoncursor, + buttondownrelief, buttonuprelief, + command, disabledbackground, + disabledforeground, format, from, + invalidcommand, increment, + readonlybackground, state, to, + validate, validatecommand values, + width, wrap, + """ + Widget.__init__(self, master, 'spinbox', cnf, kw) + + def bbox(self, index): + """Return a tuple of X1,Y1,X2,Y2 coordinates for a + rectangle which encloses the character given by index. + + The first two elements of the list give the x and y + coordinates of the upper-left corner of the screen + area covered by the character (in pixels relative + to the widget) and the last two elements give the + width and height of the character, in pixels. The + bounding box may refer to a region outside the + visible area of the window. + """ + return self._getints(self.tk.call(self._w, 'bbox', index)) or None + + def delete(self, first, last=None): + """Delete one or more elements of the spinbox. + + First is the index of the first character to delete, + and last is the index of the character just after + the last one to delete. If last isn't specified it + defaults to first+1, i.e. a single character is + deleted. This command returns an empty string. + """ + return self.tk.call(self._w, 'delete', first, last) + + def get(self): + """Returns the spinbox's string""" + return self.tk.call(self._w, 'get') + + def icursor(self, index): + """Alter the position of the insertion cursor. + + The insertion cursor will be displayed just before + the character given by index. Returns an empty string + """ + return self.tk.call(self._w, 'icursor', index) + + def identify(self, x, y): + """Returns the name of the widget at position x, y + + Return value is one of: none, buttondown, buttonup, entry + """ + return self.tk.call(self._w, 'identify', x, y) + + def index(self, index): + """Returns the numerical index corresponding to index + """ + return self.tk.call(self._w, 'index', index) + + def insert(self, index, s): + """Insert string s at index + + Returns an empty string. + """ + return self.tk.call(self._w, 'insert', index, s) + + def invoke(self, element): + """Causes the specified element to be invoked + + The element could be buttondown or buttonup + triggering the action associated with it. + """ + return self.tk.call(self._w, 'invoke', element) + + def scan(self, *args): + """Internal function.""" + return self._getints( + self.tk.call((self._w, 'scan') + args)) or () + + def scan_mark(self, x): + """Records x and the current view in the spinbox window; + + used in conjunction with later scan dragto commands. + Typically this command is associated with a mouse button + press in the widget. It returns an empty string. + """ + return self.scan("mark", x) + + def scan_dragto(self, x): + """Compute the difference between the given x argument + and the x argument to the last scan mark command + + It then adjusts the view left or right by 10 times the + difference in x-coordinates. This command is typically + associated with mouse motion events in the widget, to + produce the effect of dragging the spinbox at high speed + through the window. The return value is an empty string. + """ + return self.scan("dragto", x) + + def selection(self, *args): + """Internal function.""" + return self._getints( + self.tk.call((self._w, 'selection') + args)) or () + + def selection_adjust(self, index): + """Locate the end of the selection nearest to the character + given by index, + + Then adjust that end of the selection to be at index + (i.e including but not going beyond index). The other + end of the selection is made the anchor point for future + select to commands. If the selection isn't currently in + the spinbox, then a new selection is created to include + the characters between index and the most recent selection + anchor point, inclusive. + """ + return self.selection("adjust", index) + + def selection_clear(self): + """Clear the selection + + If the selection isn't in this widget then the + command has no effect. + """ + return self.selection("clear") + + def selection_element(self, element=None): + """Sets or gets the currently selected element. + + If a spinbutton element is specified, it will be + displayed depressed. + """ + return self.tk.call(self._w, 'selection', 'element', element) + + def selection_from(self, index): + """Set the fixed end of a selection to INDEX.""" + self.selection('from', index) + + def selection_present(self): + """Return True if there are characters selected in the spinbox, False + otherwise.""" + return self.tk.getboolean( + self.tk.call(self._w, 'selection', 'present')) + + def selection_range(self, start, end): + """Set the selection from START to END (not included).""" + self.selection('range', start, end) + + def selection_to(self, index): + """Set the variable end of a selection to INDEX.""" + self.selection('to', index) + +########################################################################### + + +class LabelFrame(Widget): + """labelframe widget.""" + + def __init__(self, master=None, cnf={}, **kw): + """Construct a labelframe widget with the parent MASTER. + + STANDARD OPTIONS + + borderwidth, cursor, font, foreground, + highlightbackground, highlightcolor, + highlightthickness, padx, pady, relief, + takefocus, text + + WIDGET-SPECIFIC OPTIONS + + background, class, colormap, container, + height, labelanchor, labelwidget, + visual, width + """ + Widget.__init__(self, master, 'labelframe', cnf, kw) + +######################################################################## + + +class PanedWindow(Widget): + """panedwindow widget.""" + + def __init__(self, master=None, cnf={}, **kw): + """Construct a panedwindow widget with the parent MASTER. + + STANDARD OPTIONS + + background, borderwidth, cursor, height, + orient, relief, width + + WIDGET-SPECIFIC OPTIONS + + handlepad, handlesize, opaqueresize, + sashcursor, sashpad, sashrelief, + sashwidth, showhandle, + """ + Widget.__init__(self, master, 'panedwindow', cnf, kw) + + def add(self, child, **kw): + """Add a child widget to the panedwindow in a new pane. + + The child argument is the name of the child widget + followed by pairs of arguments that specify how to + manage the windows. The possible options and values + are the ones accepted by the paneconfigure method. + """ + self.tk.call((self._w, 'add', child) + self._options(kw)) + + def remove(self, child): + """Remove the pane containing child from the panedwindow + + All geometry management options for child will be forgotten. + """ + self.tk.call(self._w, 'forget', child) + + forget = remove + + def identify(self, x, y): + """Identify the panedwindow component at point x, y + + If the point is over a sash or a sash handle, the result + is a two element list containing the index of the sash or + handle, and a word indicating whether it is over a sash + or a handle, such as {0 sash} or {2 handle}. If the point + is over any other part of the panedwindow, the result is + an empty list. + """ + return self.tk.call(self._w, 'identify', x, y) + + def proxy(self, *args): + """Internal function.""" + return self._getints( + self.tk.call((self._w, 'proxy') + args)) or () + + def proxy_coord(self): + """Return the x and y pair of the most recent proxy location + """ + return self.proxy("coord") + + def proxy_forget(self): + """Remove the proxy from the display. + """ + return self.proxy("forget") + + def proxy_place(self, x, y): + """Place the proxy at the given x and y coordinates. + """ + return self.proxy("place", x, y) + + def sash(self, *args): + """Internal function.""" + return self._getints( + self.tk.call((self._w, 'sash') + args)) or () + + def sash_coord(self, index): + """Return the current x and y pair for the sash given by index. + + Index must be an integer between 0 and 1 less than the + number of panes in the panedwindow. The coordinates given are + those of the top left corner of the region containing the sash. + pathName sash dragto index x y This command computes the + difference between the given coordinates and the coordinates + given to the last sash coord command for the given sash. It then + moves that sash the computed difference. The return value is the + empty string. + """ + return self.sash("coord", index) + + def sash_mark(self, index): + """Records x and y for the sash given by index; + + Used in conjunction with later dragto commands to move the sash. + """ + return self.sash("mark", index) + + def sash_place(self, index, x, y): + """Place the sash given by index at the given coordinates + """ + return self.sash("place", index, x, y) + + def panecget(self, child, option): + """Query a management option for window. + + Option may be any value allowed by the paneconfigure subcommand + """ + return self.tk.call( + (self._w, 'panecget') + (child, '-'+option)) + + def paneconfigure(self, tagOrId, cnf=None, **kw): + """Query or modify the management options for window. + + If no option is specified, returns a list describing all + of the available options for pathName. If option is + specified with no value, then the command returns a list + describing the one named option (this list will be identical + to the corresponding sublist of the value returned if no + option is specified). If one or more option-value pairs are + specified, then the command modifies the given widget + option(s) to have the given value(s); in this case the + command returns an empty string. The following options + are supported: + + after window + Insert the window after the window specified. window + should be the name of a window already managed by pathName. + before window + Insert the window before the window specified. window + should be the name of a window already managed by pathName. + height size + Specify a height for the window. The height will be the + outer dimension of the window including its border, if + any. If size is an empty string, or if -height is not + specified, then the height requested internally by the + window will be used initially; the height may later be + adjusted by the movement of sashes in the panedwindow. + Size may be any value accepted by Tk_GetPixels. + minsize n + Specifies that the size of the window cannot be made + less than n. This constraint only affects the size of + the widget in the paned dimension -- the x dimension + for horizontal panedwindows, the y dimension for + vertical panedwindows. May be any value accepted by + Tk_GetPixels. + padx n + Specifies a non-negative value indicating how much + extra space to leave on each side of the window in + the X-direction. The value may have any of the forms + accepted by Tk_GetPixels. + pady n + Specifies a non-negative value indicating how much + extra space to leave on each side of the window in + the Y-direction. The value may have any of the forms + accepted by Tk_GetPixels. + sticky style + If a window's pane is larger than the requested + dimensions of the window, this option may be used + to position (or stretch) the window within its pane. + Style is a string that contains zero or more of the + characters n, s, e or w. The string can optionally + contains spaces or commas, but they are ignored. Each + letter refers to a side (north, south, east, or west) + that the window will "stick" to. If both n and s + (or e and w) are specified, the window will be + stretched to fill the entire height (or width) of + its cavity. + width size + Specify a width for the window. The width will be + the outer dimension of the window including its + border, if any. If size is an empty string, or + if -width is not specified, then the width requested + internally by the window will be used initially; the + width may later be adjusted by the movement of sashes + in the panedwindow. Size may be any value accepted by + Tk_GetPixels. + + """ + if cnf is None and not kw: + return self._getconfigure(self._w, 'paneconfigure', tagOrId) + if isinstance(cnf, str) and not kw: + return self._getconfigure1( + self._w, 'paneconfigure', tagOrId, '-'+cnf) + self.tk.call((self._w, 'paneconfigure', tagOrId) + + self._options(cnf, kw)) + + paneconfig = paneconfigure + + def panes(self): + """Returns an ordered list of the child panes.""" + return self.tk.splitlist(self.tk.call(self._w, 'panes')) + +# Test: + + +def _test(): + root = Tk() + text = "This is Tcl/Tk %s" % root.globalgetvar('tk_patchLevel') + text += "\nThis should be a cedilla: \xe7" + label = Label(root, text=text) + label.pack() + test = Button(root, text="Click me!", + command=lambda root=root: root.test.configure( + text="[%s]" % root.test['text'])) + test.pack() + root.test = test + quit = Button(root, text="QUIT", command=root.destroy) + quit.pack() + # The following three commands are needed so the window pops + # up on top on Windows... + root.iconify() + root.update() + root.deiconify() + root.mainloop() + + +__all__ = [name for name, obj in globals().items() + if not name.startswith('_') and not isinstance(obj, types.ModuleType) + and name not in {'wantobjects'}] + +if __name__ == '__main__': + _test() diff --git a/Lib/tkinter/__main__.py b/Lib/tkinter/__main__.py new file mode 100644 index 0000000000..757880d439 --- /dev/null +++ b/Lib/tkinter/__main__.py @@ -0,0 +1,7 @@ +"""Main entry point""" + +import sys +if sys.argv[0].endswith("__main__.py"): + sys.argv[0] = "python -m tkinter" +from . import _test as main +main() diff --git a/Lib/tkinter/colorchooser.py b/Lib/tkinter/colorchooser.py new file mode 100644 index 0000000000..e2fb69dba9 --- /dev/null +++ b/Lib/tkinter/colorchooser.py @@ -0,0 +1,86 @@ +# tk common color chooser dialogue +# +# this module provides an interface to the native color dialogue +# available in Tk 4.2 and newer. +# +# written by Fredrik Lundh, May 1997 +# +# fixed initialcolor handling in August 1998 +# + + +from tkinter.commondialog import Dialog + +__all__ = ["Chooser", "askcolor"] + + +class Chooser(Dialog): + """Create a dialog for the tk_chooseColor command. + + Args: + master: The master widget for this dialog. If not provided, + defaults to options['parent'] (if defined). + options: Dictionary of options for the tk_chooseColor call. + initialcolor: Specifies the selected color when the + dialog is first displayed. This can be a tk color + string or a 3-tuple of ints in the range (0, 255) + for an RGB triplet. + parent: The parent window of the color dialog. The + color dialog is displayed on top of this. + title: A string for the title of the dialog box. + """ + + command = "tk_chooseColor" + + def _fixoptions(self): + """Ensure initialcolor is a tk color string. + + Convert initialcolor from a RGB triplet to a color string. + """ + try: + color = self.options["initialcolor"] + if isinstance(color, tuple): + # Assume an RGB triplet. + self.options["initialcolor"] = "#%02x%02x%02x" % color + except KeyError: + pass + + def _fixresult(self, widget, result): + """Adjust result returned from call to tk_chooseColor. + + Return both an RGB tuple of ints in the range (0, 255) and the + tk color string in the form #rrggbb. + """ + # Result can be many things: an empty tuple, an empty string, or + # a _tkinter.Tcl_Obj, so this somewhat weird check handles that. + if not result or not str(result): + return None, None # canceled + + # To simplify application code, the color chooser returns + # an RGB tuple together with the Tk color string. + r, g, b = widget.winfo_rgb(result) + return (r//256, g//256, b//256), str(result) + + +# +# convenience stuff + +def askcolor(color=None, **options): + """Display dialog window for selection of a color. + + Convenience wrapper for the Chooser class. Displays the color + chooser dialog with color as the initial value. + """ + + if color: + options = options.copy() + options["initialcolor"] = color + + return Chooser(**options).show() + + +# -------------------------------------------------------------------- +# test stuff + +if __name__ == "__main__": + print("color", askcolor()) diff --git a/Lib/tkinter/commondialog.py b/Lib/tkinter/commondialog.py new file mode 100644 index 0000000000..86f5387e00 --- /dev/null +++ b/Lib/tkinter/commondialog.py @@ -0,0 +1,53 @@ +# base class for tk common dialogues +# +# this module provides a base class for accessing the common +# dialogues available in Tk 4.2 and newer. use filedialog, +# colorchooser, and messagebox to access the individual +# dialogs. +# +# written by Fredrik Lundh, May 1997 +# + +__all__ = ["Dialog"] + +from tkinter import _get_temp_root, _destroy_temp_root + + +class Dialog: + + command = None + + def __init__(self, master=None, **options): + if master is None: + master = options.get('parent') + self.master = master + self.options = options + + def _fixoptions(self): + pass # hook + + def _fixresult(self, widget, result): + return result # hook + + def show(self, **options): + + # update instance options + for k, v in options.items(): + self.options[k] = v + + self._fixoptions() + + master = self.master + if master is None: + master = _get_temp_root() + try: + self._test_callback(master) # The function below is replaced for some tests. + s = master.tk.call(self.command, *master._options(self.options)) + s = self._fixresult(master, s) + finally: + _destroy_temp_root(master) + + return s + + def _test_callback(self, master): + pass diff --git a/Lib/tkinter/constants.py b/Lib/tkinter/constants.py new file mode 100644 index 0000000000..63eee33d24 --- /dev/null +++ b/Lib/tkinter/constants.py @@ -0,0 +1,110 @@ +# Symbolic constants for Tk + +# Booleans +NO=FALSE=OFF=0 +YES=TRUE=ON=1 + +# -anchor and -sticky +N='n' +S='s' +W='w' +E='e' +NW='nw' +SW='sw' +NE='ne' +SE='se' +NS='ns' +EW='ew' +NSEW='nsew' +CENTER='center' + +# -fill +NONE='none' +X='x' +Y='y' +BOTH='both' + +# -side +LEFT='left' +TOP='top' +RIGHT='right' +BOTTOM='bottom' + +# -relief +RAISED='raised' +SUNKEN='sunken' +FLAT='flat' +RIDGE='ridge' +GROOVE='groove' +SOLID = 'solid' + +# -orient +HORIZONTAL='horizontal' +VERTICAL='vertical' + +# -tabs +NUMERIC='numeric' + +# -wrap +CHAR='char' +WORD='word' + +# -align +BASELINE='baseline' + +# -bordermode +INSIDE='inside' +OUTSIDE='outside' + +# Special tags, marks and insert positions +SEL='sel' +SEL_FIRST='sel.first' +SEL_LAST='sel.last' +END='end' +INSERT='insert' +CURRENT='current' +ANCHOR='anchor' +ALL='all' # e.g. Canvas.delete(ALL) + +# Text widget and button states +NORMAL='normal' +DISABLED='disabled' +ACTIVE='active' +# Canvas state +HIDDEN='hidden' + +# Menu item types +CASCADE='cascade' +CHECKBUTTON='checkbutton' +COMMAND='command' +RADIOBUTTON='radiobutton' +SEPARATOR='separator' + +# Selection modes for list boxes +SINGLE='single' +BROWSE='browse' +MULTIPLE='multiple' +EXTENDED='extended' + +# Activestyle for list boxes +# NONE='none' is also valid +DOTBOX='dotbox' +UNDERLINE='underline' + +# Various canvas styles +PIESLICE='pieslice' +CHORD='chord' +ARC='arc' +FIRST='first' +LAST='last' +BUTT='butt' +PROJECTING='projecting' +ROUND='round' +BEVEL='bevel' +MITER='miter' + +# Arguments to xview/yview +MOVETO='moveto' +SCROLL='scroll' +UNITS='units' +PAGES='pages' diff --git a/Lib/tkinter/dialog.py b/Lib/tkinter/dialog.py new file mode 100644 index 0000000000..36ae6c277c --- /dev/null +++ b/Lib/tkinter/dialog.py @@ -0,0 +1,49 @@ +# dialog.py -- Tkinter interface to the tk_dialog script. + +from tkinter import _cnfmerge, Widget, TclError, Button, Pack + +__all__ = ["Dialog"] + +DIALOG_ICON = 'questhead' + + +class Dialog(Widget): + def __init__(self, master=None, cnf={}, **kw): + cnf = _cnfmerge((cnf, kw)) + self.widgetName = '__dialog__' + self._setup(master, cnf) + self.num = self.tk.getint( + self.tk.call( + 'tk_dialog', self._w, + cnf['title'], cnf['text'], + cnf['bitmap'], cnf['default'], + *cnf['strings'])) + try: Widget.destroy(self) + except TclError: pass + + def destroy(self): pass + + +def _test(): + d = Dialog(None, {'title': 'File Modified', + 'text': + 'File "Python.h" has been modified' + ' since the last time it was saved.' + ' Do you want to save it before' + ' exiting the application.', + 'bitmap': DIALOG_ICON, + 'default': 0, + 'strings': ('Save File', + 'Discard Changes', + 'Return to Editor')}) + print(d.num) + + +if __name__ == '__main__': + t = Button(None, {'text': 'Test', + 'command': _test, + Pack: {}}) + q = Button(None, {'text': 'Quit', + 'command': t.quit, + Pack: {}}) + t.mainloop() diff --git a/Lib/tkinter/dnd.py b/Lib/tkinter/dnd.py new file mode 100644 index 0000000000..acec61ba71 --- /dev/null +++ b/Lib/tkinter/dnd.py @@ -0,0 +1,324 @@ +"""Drag-and-drop support for Tkinter. + +This is very preliminary. I currently only support dnd *within* one +application, between different windows (or within the same window). + +I am trying to make this as generic as possible -- not dependent on +the use of a particular widget or icon type, etc. I also hope that +this will work with Pmw. + +To enable an object to be dragged, you must create an event binding +for it that starts the drag-and-drop process. Typically, you should +bind to a callback function that you write. The function +should call Tkdnd.dnd_start(source, event), where 'source' is the +object to be dragged, and 'event' is the event that invoked the call +(the argument to your callback function). Even though this is a class +instantiation, the returned instance should not be stored -- it will +be kept alive automatically for the duration of the drag-and-drop. + +When a drag-and-drop is already in process for the Tk interpreter, the +call is *ignored*; this normally averts starting multiple simultaneous +dnd processes, e.g. because different button callbacks all +dnd_start(). + +The object is *not* necessarily a widget -- it can be any +application-specific object that is meaningful to potential +drag-and-drop targets. + +Potential drag-and-drop targets are discovered as follows. Whenever +the mouse moves, and at the start and end of a drag-and-drop move, the +Tk widget directly under the mouse is inspected. This is the target +widget (not to be confused with the target object, yet to be +determined). If there is no target widget, there is no dnd target +object. If there is a target widget, and it has an attribute +dnd_accept, this should be a function (or any callable object). The +function is called as dnd_accept(source, event), where 'source' is the +object being dragged (the object passed to dnd_start() above), and +'event' is the most recent event object (generally a event; +it can also be or ). If the dnd_accept() +function returns something other than None, this is the new dnd target +object. If dnd_accept() returns None, or if the target widget has no +dnd_accept attribute, the target widget's parent is considered as the +target widget, and the search for a target object is repeated from +there. If necessary, the search is repeated all the way up to the +root widget. If none of the target widgets can produce a target +object, there is no target object (the target object is None). + +The target object thus produced, if any, is called the new target +object. It is compared with the old target object (or None, if there +was no old target widget). There are several cases ('source' is the +source object, and 'event' is the most recent event object): + +- Both the old and new target objects are None. Nothing happens. + +- The old and new target objects are the same object. Its method +dnd_motion(source, event) is called. + +- The old target object was None, and the new target object is not +None. The new target object's method dnd_enter(source, event) is +called. + +- The new target object is None, and the old target object is not +None. The old target object's method dnd_leave(source, event) is +called. + +- The old and new target objects differ and neither is None. The old +target object's method dnd_leave(source, event), and then the new +target object's method dnd_enter(source, event) is called. + +Once this is done, the new target object replaces the old one, and the +Tk mainloop proceeds. The return value of the methods mentioned above +is ignored; if they raise an exception, the normal exception handling +mechanisms take over. + +The drag-and-drop processes can end in two ways: a final target object +is selected, or no final target object is selected. When a final +target object is selected, it will always have been notified of the +potential drop by a call to its dnd_enter() method, as described +above, and possibly one or more calls to its dnd_motion() method; its +dnd_leave() method has not been called since the last call to +dnd_enter(). The target is notified of the drop by a call to its +method dnd_commit(source, event). + +If no final target object is selected, and there was an old target +object, its dnd_leave(source, event) method is called to complete the +dnd sequence. + +Finally, the source object is notified that the drag-and-drop process +is over, by a call to source.dnd_end(target, event), specifying either +the selected target object, or None if no target object was selected. +The source object can use this to implement the commit action; this is +sometimes simpler than to do it in the target's dnd_commit(). The +target's dnd_commit() method could then simply be aliased to +dnd_leave(). + +At any time during a dnd sequence, the application can cancel the +sequence by calling the cancel() method on the object returned by +dnd_start(). This will call dnd_leave() if a target is currently +active; it will never call dnd_commit(). + +""" + +import tkinter + +__all__ = ["dnd_start", "DndHandler"] + + +# The factory function + +def dnd_start(source, event): + h = DndHandler(source, event) + if h.root is not None: + return h + else: + return None + + +# The class that does the work + +class DndHandler: + + root = None + + def __init__(self, source, event): + if event.num > 5: + return + root = event.widget._root() + try: + root.__dnd + return # Don't start recursive dnd + except AttributeError: + root.__dnd = self + self.root = root + self.source = source + self.target = None + self.initial_button = button = event.num + self.initial_widget = widget = event.widget + self.release_pattern = "" % (button, button) + self.save_cursor = widget['cursor'] or "" + widget.bind(self.release_pattern, self.on_release) + widget.bind("", self.on_motion) + widget['cursor'] = "hand2" + + def __del__(self): + root = self.root + self.root = None + if root is not None: + try: + del root.__dnd + except AttributeError: + pass + + def on_motion(self, event): + x, y = event.x_root, event.y_root + target_widget = self.initial_widget.winfo_containing(x, y) + source = self.source + new_target = None + while target_widget is not None: + try: + attr = target_widget.dnd_accept + except AttributeError: + pass + else: + new_target = attr(source, event) + if new_target is not None: + break + target_widget = target_widget.master + old_target = self.target + if old_target is new_target: + if old_target is not None: + old_target.dnd_motion(source, event) + else: + if old_target is not None: + self.target = None + old_target.dnd_leave(source, event) + if new_target is not None: + new_target.dnd_enter(source, event) + self.target = new_target + + def on_release(self, event): + self.finish(event, 1) + + def cancel(self, event=None): + self.finish(event, 0) + + def finish(self, event, commit=0): + target = self.target + source = self.source + widget = self.initial_widget + root = self.root + try: + del root.__dnd + self.initial_widget.unbind(self.release_pattern) + self.initial_widget.unbind("") + widget['cursor'] = self.save_cursor + self.target = self.source = self.initial_widget = self.root = None + if target is not None: + if commit: + target.dnd_commit(source, event) + else: + target.dnd_leave(source, event) + finally: + source.dnd_end(target, event) + + +# ---------------------------------------------------------------------- +# The rest is here for testing and demonstration purposes only! + +class Icon: + + def __init__(self, name): + self.name = name + self.canvas = self.label = self.id = None + + def attach(self, canvas, x=10, y=10): + if canvas is self.canvas: + self.canvas.coords(self.id, x, y) + return + if self.canvas is not None: + self.detach() + if canvas is None: + return + label = tkinter.Label(canvas, text=self.name, + borderwidth=2, relief="raised") + id = canvas.create_window(x, y, window=label, anchor="nw") + self.canvas = canvas + self.label = label + self.id = id + label.bind("", self.press) + + def detach(self): + canvas = self.canvas + if canvas is None: + return + id = self.id + label = self.label + self.canvas = self.label = self.id = None + canvas.delete(id) + label.destroy() + + def press(self, event): + if dnd_start(self, event): + # where the pointer is relative to the label widget: + self.x_off = event.x + self.y_off = event.y + # where the widget is relative to the canvas: + self.x_orig, self.y_orig = self.canvas.coords(self.id) + + def move(self, event): + x, y = self.where(self.canvas, event) + self.canvas.coords(self.id, x, y) + + def putback(self): + self.canvas.coords(self.id, self.x_orig, self.y_orig) + + def where(self, canvas, event): + # where the corner of the canvas is relative to the screen: + x_org = canvas.winfo_rootx() + y_org = canvas.winfo_rooty() + # where the pointer is relative to the canvas widget: + x = event.x_root - x_org + y = event.y_root - y_org + # compensate for initial pointer offset + return x - self.x_off, y - self.y_off + + def dnd_end(self, target, event): + pass + + +class Tester: + + def __init__(self, root): + self.top = tkinter.Toplevel(root) + self.canvas = tkinter.Canvas(self.top, width=100, height=100) + self.canvas.pack(fill="both", expand=1) + self.canvas.dnd_accept = self.dnd_accept + + def dnd_accept(self, source, event): + return self + + def dnd_enter(self, source, event): + self.canvas.focus_set() # Show highlight border + x, y = source.where(self.canvas, event) + x1, y1, x2, y2 = source.canvas.bbox(source.id) + dx, dy = x2-x1, y2-y1 + self.dndid = self.canvas.create_rectangle(x, y, x+dx, y+dy) + self.dnd_motion(source, event) + + def dnd_motion(self, source, event): + x, y = source.where(self.canvas, event) + x1, y1, x2, y2 = self.canvas.bbox(self.dndid) + self.canvas.move(self.dndid, x-x1, y-y1) + + def dnd_leave(self, source, event): + self.top.focus_set() # Hide highlight border + self.canvas.delete(self.dndid) + self.dndid = None + + def dnd_commit(self, source, event): + self.dnd_leave(source, event) + x, y = source.where(self.canvas, event) + source.attach(self.canvas, x, y) + + +def test(): + root = tkinter.Tk() + root.geometry("+1+1") + tkinter.Button(command=root.quit, text="Quit").pack() + t1 = Tester(root) + t1.top.geometry("+1+60") + t2 = Tester(root) + t2.top.geometry("+120+60") + t3 = Tester(root) + t3.top.geometry("+240+60") + i1 = Icon("ICON1") + i2 = Icon("ICON2") + i3 = Icon("ICON3") + i1.attach(t1.canvas) + i2.attach(t2.canvas) + i3.attach(t3.canvas) + root.mainloop() + + +if __name__ == '__main__': + test() diff --git a/Lib/tkinter/filedialog.py b/Lib/tkinter/filedialog.py new file mode 100644 index 0000000000..e2eff98e60 --- /dev/null +++ b/Lib/tkinter/filedialog.py @@ -0,0 +1,492 @@ +"""File selection dialog classes. + +Classes: + +- FileDialog +- LoadFileDialog +- SaveFileDialog + +This module also presents tk common file dialogues, it provides interfaces +to the native file dialogues available in Tk 4.2 and newer, and the +directory dialogue available in Tk 8.3 and newer. +These interfaces were written by Fredrik Lundh, May 1997. +""" +__all__ = ["FileDialog", "LoadFileDialog", "SaveFileDialog", + "Open", "SaveAs", "Directory", + "askopenfilename", "asksaveasfilename", "askopenfilenames", + "askopenfile", "askopenfiles", "asksaveasfile", "askdirectory"] + +import fnmatch +import os +from tkinter import ( + Frame, LEFT, YES, BOTTOM, Entry, TOP, Button, Tk, X, + Toplevel, RIGHT, Y, END, Listbox, BOTH, Scrollbar, +) +from tkinter.dialog import Dialog +from tkinter import commondialog +from tkinter.simpledialog import _setup_dialog + + +dialogstates = {} + + +class FileDialog: + + """Standard file selection dialog -- no checks on selected file. + + Usage: + + d = FileDialog(master) + fname = d.go(dir_or_file, pattern, default, key) + if fname is None: ...canceled... + else: ...open file... + + All arguments to go() are optional. + + The 'key' argument specifies a key in the global dictionary + 'dialogstates', which keeps track of the values for the directory + and pattern arguments, overriding the values passed in (it does + not keep track of the default argument!). If no key is specified, + the dialog keeps no memory of previous state. Note that memory is + kept even when the dialog is canceled. (All this emulates the + behavior of the Macintosh file selection dialogs.) + + """ + + title = "File Selection Dialog" + + def __init__(self, master, title=None): + if title is None: title = self.title + self.master = master + self.directory = None + + self.top = Toplevel(master) + self.top.title(title) + self.top.iconname(title) + _setup_dialog(self.top) + + self.botframe = Frame(self.top) + self.botframe.pack(side=BOTTOM, fill=X) + + self.selection = Entry(self.top) + self.selection.pack(side=BOTTOM, fill=X) + self.selection.bind('', self.ok_event) + + self.filter = Entry(self.top) + self.filter.pack(side=TOP, fill=X) + self.filter.bind('', self.filter_command) + + self.midframe = Frame(self.top) + self.midframe.pack(expand=YES, fill=BOTH) + + self.filesbar = Scrollbar(self.midframe) + self.filesbar.pack(side=RIGHT, fill=Y) + self.files = Listbox(self.midframe, exportselection=0, + yscrollcommand=(self.filesbar, 'set')) + self.files.pack(side=RIGHT, expand=YES, fill=BOTH) + btags = self.files.bindtags() + self.files.bindtags(btags[1:] + btags[:1]) + self.files.bind('', self.files_select_event) + self.files.bind('', self.files_double_event) + self.filesbar.config(command=(self.files, 'yview')) + + self.dirsbar = Scrollbar(self.midframe) + self.dirsbar.pack(side=LEFT, fill=Y) + self.dirs = Listbox(self.midframe, exportselection=0, + yscrollcommand=(self.dirsbar, 'set')) + self.dirs.pack(side=LEFT, expand=YES, fill=BOTH) + self.dirsbar.config(command=(self.dirs, 'yview')) + btags = self.dirs.bindtags() + self.dirs.bindtags(btags[1:] + btags[:1]) + self.dirs.bind('', self.dirs_select_event) + self.dirs.bind('', self.dirs_double_event) + + self.ok_button = Button(self.botframe, + text="OK", + command=self.ok_command) + self.ok_button.pack(side=LEFT) + self.filter_button = Button(self.botframe, + text="Filter", + command=self.filter_command) + self.filter_button.pack(side=LEFT, expand=YES) + self.cancel_button = Button(self.botframe, + text="Cancel", + command=self.cancel_command) + self.cancel_button.pack(side=RIGHT) + + self.top.protocol('WM_DELETE_WINDOW', self.cancel_command) + # XXX Are the following okay for a general audience? + self.top.bind('', self.cancel_command) + self.top.bind('', self.cancel_command) + + def go(self, dir_or_file=os.curdir, pattern="*", default="", key=None): + if key and key in dialogstates: + self.directory, pattern = dialogstates[key] + else: + dir_or_file = os.path.expanduser(dir_or_file) + if os.path.isdir(dir_or_file): + self.directory = dir_or_file + else: + self.directory, default = os.path.split(dir_or_file) + self.set_filter(self.directory, pattern) + self.set_selection(default) + self.filter_command() + self.selection.focus_set() + self.top.wait_visibility() # window needs to be visible for the grab + self.top.grab_set() + self.how = None + self.master.mainloop() # Exited by self.quit(how) + if key: + directory, pattern = self.get_filter() + if self.how: + directory = os.path.dirname(self.how) + dialogstates[key] = directory, pattern + self.top.destroy() + return self.how + + def quit(self, how=None): + self.how = how + self.master.quit() # Exit mainloop() + + def dirs_double_event(self, event): + self.filter_command() + + def dirs_select_event(self, event): + dir, pat = self.get_filter() + subdir = self.dirs.get('active') + dir = os.path.normpath(os.path.join(self.directory, subdir)) + self.set_filter(dir, pat) + + def files_double_event(self, event): + self.ok_command() + + def files_select_event(self, event): + file = self.files.get('active') + self.set_selection(file) + + def ok_event(self, event): + self.ok_command() + + def ok_command(self): + self.quit(self.get_selection()) + + def filter_command(self, event=None): + dir, pat = self.get_filter() + try: + names = os.listdir(dir) + except OSError: + self.master.bell() + return + self.directory = dir + self.set_filter(dir, pat) + names.sort() + subdirs = [os.pardir] + matchingfiles = [] + for name in names: + fullname = os.path.join(dir, name) + if os.path.isdir(fullname): + subdirs.append(name) + elif fnmatch.fnmatch(name, pat): + matchingfiles.append(name) + self.dirs.delete(0, END) + for name in subdirs: + self.dirs.insert(END, name) + self.files.delete(0, END) + for name in matchingfiles: + self.files.insert(END, name) + head, tail = os.path.split(self.get_selection()) + if tail == os.curdir: tail = '' + self.set_selection(tail) + + def get_filter(self): + filter = self.filter.get() + filter = os.path.expanduser(filter) + if filter[-1:] == os.sep or os.path.isdir(filter): + filter = os.path.join(filter, "*") + return os.path.split(filter) + + def get_selection(self): + file = self.selection.get() + file = os.path.expanduser(file) + return file + + def cancel_command(self, event=None): + self.quit() + + def set_filter(self, dir, pat): + if not os.path.isabs(dir): + try: + pwd = os.getcwd() + except OSError: + pwd = None + if pwd: + dir = os.path.join(pwd, dir) + dir = os.path.normpath(dir) + self.filter.delete(0, END) + self.filter.insert(END, os.path.join(dir or os.curdir, pat or "*")) + + def set_selection(self, file): + self.selection.delete(0, END) + self.selection.insert(END, os.path.join(self.directory, file)) + + +class LoadFileDialog(FileDialog): + + """File selection dialog which checks that the file exists.""" + + title = "Load File Selection Dialog" + + def ok_command(self): + file = self.get_selection() + if not os.path.isfile(file): + self.master.bell() + else: + self.quit(file) + + +class SaveFileDialog(FileDialog): + + """File selection dialog which checks that the file may be created.""" + + title = "Save File Selection Dialog" + + def ok_command(self): + file = self.get_selection() + if os.path.exists(file): + if os.path.isdir(file): + self.master.bell() + return + d = Dialog(self.top, + title="Overwrite Existing File Question", + text="Overwrite existing file %r?" % (file,), + bitmap='questhead', + default=1, + strings=("Yes", "Cancel")) + if d.num != 0: + return + else: + head, tail = os.path.split(file) + if not os.path.isdir(head): + self.master.bell() + return + self.quit(file) + + +# For the following classes and modules: +# +# options (all have default values): +# +# - defaultextension: added to filename if not explicitly given +# +# - filetypes: sequence of (label, pattern) tuples. the same pattern +# may occur with several patterns. use "*" as pattern to indicate +# all files. +# +# - initialdir: initial directory. preserved by dialog instance. +# +# - initialfile: initial file (ignored by the open dialog). preserved +# by dialog instance. +# +# - parent: which window to place the dialog on top of +# +# - title: dialog title +# +# - multiple: if true user may select more than one file +# +# options for the directory chooser: +# +# - initialdir, parent, title: see above +# +# - mustexist: if true, user must pick an existing directory +# + + +class _Dialog(commondialog.Dialog): + + def _fixoptions(self): + try: + # make sure "filetypes" is a tuple + self.options["filetypes"] = tuple(self.options["filetypes"]) + except KeyError: + pass + + def _fixresult(self, widget, result): + if result: + # keep directory and filename until next time + # convert Tcl path objects to strings + try: + result = result.string + except AttributeError: + # it already is a string + pass + path, file = os.path.split(result) + self.options["initialdir"] = path + self.options["initialfile"] = file + self.filename = result # compatibility + return result + + +# +# file dialogs + +class Open(_Dialog): + "Ask for a filename to open" + + command = "tk_getOpenFile" + + def _fixresult(self, widget, result): + if isinstance(result, tuple): + # multiple results: + result = tuple([getattr(r, "string", r) for r in result]) + if result: + path, file = os.path.split(result[0]) + self.options["initialdir"] = path + # don't set initialfile or filename, as we have multiple of these + return result + if not widget.tk.wantobjects() and "multiple" in self.options: + # Need to split result explicitly + return self._fixresult(widget, widget.tk.splitlist(result)) + return _Dialog._fixresult(self, widget, result) + + +class SaveAs(_Dialog): + "Ask for a filename to save as" + + command = "tk_getSaveFile" + + +# the directory dialog has its own _fix routines. +class Directory(commondialog.Dialog): + "Ask for a directory" + + command = "tk_chooseDirectory" + + def _fixresult(self, widget, result): + if result: + # convert Tcl path objects to strings + try: + result = result.string + except AttributeError: + # it already is a string + pass + # keep directory until next time + self.options["initialdir"] = result + self.directory = result # compatibility + return result + +# +# convenience stuff + + +def askopenfilename(**options): + "Ask for a filename to open" + + return Open(**options).show() + + +def asksaveasfilename(**options): + "Ask for a filename to save as" + + return SaveAs(**options).show() + + +def askopenfilenames(**options): + """Ask for multiple filenames to open + + Returns a list of filenames or empty list if + cancel button selected + """ + options["multiple"]=1 + return Open(**options).show() + +# FIXME: are the following perhaps a bit too convenient? + + +def askopenfile(mode = "r", **options): + "Ask for a filename to open, and returned the opened file" + + filename = Open(**options).show() + if filename: + return open(filename, mode) + return None + + +def askopenfiles(mode = "r", **options): + """Ask for multiple filenames and return the open file + objects + + returns a list of open file objects or an empty list if + cancel selected + """ + + files = askopenfilenames(**options) + if files: + ofiles=[] + for filename in files: + ofiles.append(open(filename, mode)) + files=ofiles + return files + + +def asksaveasfile(mode = "w", **options): + "Ask for a filename to save as, and returned the opened file" + + filename = SaveAs(**options).show() + if filename: + return open(filename, mode) + return None + + +def askdirectory (**options): + "Ask for a directory, and return the file name" + return Directory(**options).show() + + +# -------------------------------------------------------------------- +# test stuff + +def test(): + """Simple test program.""" + root = Tk() + root.withdraw() + fd = LoadFileDialog(root) + loadfile = fd.go(key="test") + fd = SaveFileDialog(root) + savefile = fd.go(key="test") + print(loadfile, savefile) + + # Since the file name may contain non-ASCII characters, we need + # to find an encoding that likely supports the file name, and + # displays correctly on the terminal. + + # Start off with UTF-8 + enc = "utf-8" + + # See whether CODESET is defined + try: + import locale + locale.setlocale(locale.LC_ALL,'') + enc = locale.nl_langinfo(locale.CODESET) + except (ImportError, AttributeError): + pass + + # dialog for opening files + + openfilename=askopenfilename(filetypes=[("all files", "*")]) + try: + fp=open(openfilename,"r") + fp.close() + except BaseException as exc: + print("Could not open File: ") + print(exc) + + print("open", openfilename.encode(enc)) + + # dialog for saving files + + saveasfilename=asksaveasfilename() + print("saveas", saveasfilename.encode(enc)) + + +if __name__ == '__main__': + test() diff --git a/Lib/tkinter/font.py b/Lib/tkinter/font.py new file mode 100644 index 0000000000..3e24e28ef5 --- /dev/null +++ b/Lib/tkinter/font.py @@ -0,0 +1,239 @@ +# Tkinter font wrapper +# +# written by Fredrik Lundh, February 1998 +# + +import itertools +import tkinter + +__version__ = "0.9" +__all__ = ["NORMAL", "ROMAN", "BOLD", "ITALIC", + "nametofont", "Font", "families", "names"] + +# weight/slant +NORMAL = "normal" +ROMAN = "roman" +BOLD = "bold" +ITALIC = "italic" + + +def nametofont(name, root=None): + """Given the name of a tk named font, returns a Font representation. + """ + return Font(name=name, exists=True, root=root) + + +class Font: + """Represents a named font. + + Constructor options are: + + font -- font specifier (name, system font, or (family, size, style)-tuple) + name -- name to use for this font configuration (defaults to a unique name) + exists -- does a named font by this name already exist? + Creates a new named font if False, points to the existing font if True. + Raises _tkinter.TclError if the assertion is false. + + the following are ignored if font is specified: + + family -- font 'family', e.g. Courier, Times, Helvetica + size -- font size in points + weight -- font thickness: NORMAL, BOLD + slant -- font slant: ROMAN, ITALIC + underline -- font underlining: false (0), true (1) + overstrike -- font strikeout: false (0), true (1) + + """ + + counter = itertools.count(1) + + def _set(self, kw): + options = [] + for k, v in kw.items(): + options.append("-"+k) + options.append(str(v)) + return tuple(options) + + def _get(self, args): + options = [] + for k in args: + options.append("-"+k) + return tuple(options) + + def _mkdict(self, args): + options = {} + for i in range(0, len(args), 2): + options[args[i][1:]] = args[i+1] + return options + + def __init__(self, root=None, font=None, name=None, exists=False, + **options): + if root is None: + root = tkinter._get_default_root('use font') + tk = getattr(root, 'tk', root) + if font: + # get actual settings corresponding to the given font + font = tk.splitlist(tk.call("font", "actual", font)) + else: + font = self._set(options) + if not name: + name = "font" + str(next(self.counter)) + self.name = name + + if exists: + self.delete_font = False + # confirm font exists + if self.name not in tk.splitlist(tk.call("font", "names")): + raise tkinter._tkinter.TclError( + "named font %s does not already exist" % (self.name,)) + # if font config info supplied, apply it + if font: + tk.call("font", "configure", self.name, *font) + else: + # create new font (raises TclError if the font exists) + tk.call("font", "create", self.name, *font) + self.delete_font = True + self._tk = tk + self._split = tk.splitlist + self._call = tk.call + + def __str__(self): + return self.name + + def __repr__(self): + return f"<{self.__class__.__module__}.{self.__class__.__qualname__}" \ + f" object {self.name!r}>" + + def __eq__(self, other): + if not isinstance(other, Font): + return NotImplemented + return self.name == other.name and self._tk == other._tk + + def __getitem__(self, key): + return self.cget(key) + + def __setitem__(self, key, value): + self.configure(**{key: value}) + + def __del__(self): + try: + if self.delete_font: + self._call("font", "delete", self.name) + except Exception: + pass + + def copy(self): + "Return a distinct copy of the current font" + return Font(self._tk, **self.actual()) + + def actual(self, option=None, displayof=None): + "Return actual font attributes" + args = () + if displayof: + args = ('-displayof', displayof) + if option: + args = args + ('-' + option, ) + return self._call("font", "actual", self.name, *args) + else: + return self._mkdict( + self._split(self._call("font", "actual", self.name, *args))) + + def cget(self, option): + "Get font attribute" + return self._call("font", "config", self.name, "-"+option) + + def config(self, **options): + "Modify font attributes" + if options: + self._call("font", "config", self.name, + *self._set(options)) + else: + return self._mkdict( + self._split(self._call("font", "config", self.name))) + + configure = config + + def measure(self, text, displayof=None): + "Return text width" + args = (text,) + if displayof: + args = ('-displayof', displayof, text) + return self._tk.getint(self._call("font", "measure", self.name, *args)) + + def metrics(self, *options, **kw): + """Return font metrics. + + For best performance, create a dummy widget + using this font before calling this method.""" + args = () + displayof = kw.pop('displayof', None) + if displayof: + args = ('-displayof', displayof) + if options: + args = args + self._get(options) + return self._tk.getint( + self._call("font", "metrics", self.name, *args)) + else: + res = self._split(self._call("font", "metrics", self.name, *args)) + options = {} + for i in range(0, len(res), 2): + options[res[i][1:]] = self._tk.getint(res[i+1]) + return options + + +def families(root=None, displayof=None): + "Get font families (as a tuple)" + if root is None: + root = tkinter._get_default_root('use font.families()') + args = () + if displayof: + args = ('-displayof', displayof) + return root.tk.splitlist(root.tk.call("font", "families", *args)) + + +def names(root=None): + "Get names of defined fonts (as a tuple)" + if root is None: + root = tkinter._get_default_root('use font.names()') + return root.tk.splitlist(root.tk.call("font", "names")) + + +# -------------------------------------------------------------------- +# test stuff + +if __name__ == "__main__": + + root = tkinter.Tk() + + # create a font + f = Font(family="times", size=30, weight=NORMAL) + + print(f.actual()) + print(f.actual("family")) + print(f.actual("weight")) + + print(f.config()) + print(f.cget("family")) + print(f.cget("weight")) + + print(names()) + + print(f.measure("hello"), f.metrics("linespace")) + + print(f.metrics(displayof=root)) + + f = Font(font=("Courier", 20, "bold")) + print(f.measure("hello"), f.metrics("linespace", displayof=root)) + + w = tkinter.Label(root, text="Hello, world", font=f) + w.pack() + + w = tkinter.Button(root, text="Quit!", command=root.destroy) + w.pack() + + fb = Font(font=w["font"]).copy() + fb.config(weight=BOLD) + + w.config(font=fb) + + tkinter.mainloop() diff --git a/Lib/tkinter/messagebox.py b/Lib/tkinter/messagebox.py new file mode 100644 index 0000000000..5f0343b660 --- /dev/null +++ b/Lib/tkinter/messagebox.py @@ -0,0 +1,146 @@ +# tk common message boxes +# +# this module provides an interface to the native message boxes +# available in Tk 4.2 and newer. +# +# written by Fredrik Lundh, May 1997 +# + +# +# options (all have default values): +# +# - default: which button to make default (one of the reply codes) +# +# - icon: which icon to display (see below) +# +# - message: the message to display +# +# - parent: which window to place the dialog on top of +# +# - title: dialog title +# +# - type: dialog type; that is, which buttons to display (see below) +# + +from tkinter.commondialog import Dialog + +__all__ = ["showinfo", "showwarning", "showerror", + "askquestion", "askokcancel", "askyesno", + "askyesnocancel", "askretrycancel"] + +# +# constants + +# icons +ERROR = "error" +INFO = "info" +QUESTION = "question" +WARNING = "warning" + +# types +ABORTRETRYIGNORE = "abortretryignore" +OK = "ok" +OKCANCEL = "okcancel" +RETRYCANCEL = "retrycancel" +YESNO = "yesno" +YESNOCANCEL = "yesnocancel" + +# replies +ABORT = "abort" +RETRY = "retry" +IGNORE = "ignore" +OK = "ok" +CANCEL = "cancel" +YES = "yes" +NO = "no" + + +# +# message dialog class + +class Message(Dialog): + "A message box" + + command = "tk_messageBox" + + +# +# convenience stuff + +# Rename _icon and _type options to allow overriding them in options +def _show(title=None, message=None, _icon=None, _type=None, **options): + if _icon and "icon" not in options: options["icon"] = _icon + if _type and "type" not in options: options["type"] = _type + if title: options["title"] = title + if message: options["message"] = message + res = Message(**options).show() + # In some Tcl installations, yes/no is converted into a boolean. + if isinstance(res, bool): + if res: + return YES + return NO + # In others we get a Tcl_Obj. + return str(res) + + +def showinfo(title=None, message=None, **options): + "Show an info message" + return _show(title, message, INFO, OK, **options) + + +def showwarning(title=None, message=None, **options): + "Show a warning message" + return _show(title, message, WARNING, OK, **options) + + +def showerror(title=None, message=None, **options): + "Show an error message" + return _show(title, message, ERROR, OK, **options) + + +def askquestion(title=None, message=None, **options): + "Ask a question" + return _show(title, message, QUESTION, YESNO, **options) + + +def askokcancel(title=None, message=None, **options): + "Ask if operation should proceed; return true if the answer is ok" + s = _show(title, message, QUESTION, OKCANCEL, **options) + return s == OK + + +def askyesno(title=None, message=None, **options): + "Ask a question; return true if the answer is yes" + s = _show(title, message, QUESTION, YESNO, **options) + return s == YES + + +def askyesnocancel(title=None, message=None, **options): + "Ask a question; return true if the answer is yes, None if cancelled." + s = _show(title, message, QUESTION, YESNOCANCEL, **options) + # s might be a Tcl index object, so convert it to a string + s = str(s) + if s == CANCEL: + return None + return s == YES + + +def askretrycancel(title=None, message=None, **options): + "Ask if operation should be retried; return true if the answer is yes" + s = _show(title, message, WARNING, RETRYCANCEL, **options) + return s == RETRY + + +# -------------------------------------------------------------------- +# test stuff + +if __name__ == "__main__": + + print("info", showinfo("Spam", "Egg Information")) + print("warning", showwarning("Spam", "Egg Warning")) + print("error", showerror("Spam", "Egg Alert")) + print("question", askquestion("Spam", "Question?")) + print("proceed", askokcancel("Spam", "Proceed?")) + print("yes/no", askyesno("Spam", "Got it?")) + print("yes/no/cancel", askyesnocancel("Spam", "Want it?")) + print("try again", askretrycancel("Spam", "Try again?")) diff --git a/Lib/tkinter/scrolledtext.py b/Lib/tkinter/scrolledtext.py new file mode 100644 index 0000000000..4f9a8815b6 --- /dev/null +++ b/Lib/tkinter/scrolledtext.py @@ -0,0 +1,56 @@ +"""A ScrolledText widget feels like a text widget but also has a +vertical scroll bar on its right. (Later, options may be added to +add a horizontal bar as well, to make the bars disappear +automatically when not needed, to move them to the other side of the +window, etc.) + +Configuration options are passed to the Text widget. +A Frame widget is inserted between the master and the text, to hold +the Scrollbar widget. +Most methods calls are inherited from the Text widget; Pack, Grid and +Place methods are redirected to the Frame widget however. +""" + +from tkinter import Frame, Text, Scrollbar, Pack, Grid, Place +from tkinter.constants import RIGHT, LEFT, Y, BOTH + +__all__ = ['ScrolledText'] + + +class ScrolledText(Text): + def __init__(self, master=None, **kw): + self.frame = Frame(master) + self.vbar = Scrollbar(self.frame) + self.vbar.pack(side=RIGHT, fill=Y) + + kw.update({'yscrollcommand': self.vbar.set}) + Text.__init__(self, self.frame, **kw) + self.pack(side=LEFT, fill=BOTH, expand=True) + self.vbar['command'] = self.yview + + # Copy geometry methods of self.frame without overriding Text + # methods -- hack! + text_meths = vars(Text).keys() + methods = vars(Pack).keys() | vars(Grid).keys() | vars(Place).keys() + methods = methods.difference(text_meths) + + for m in methods: + if m[0] != '_' and m != 'config' and m != 'configure': + setattr(self, m, getattr(self.frame, m)) + + def __str__(self): + return str(self.frame) + + +def example(): + from tkinter.constants import END + + stext = ScrolledText(bg='white', height=10) + stext.insert(END, __doc__) + stext.pack(fill=BOTH, side=LEFT, expand=True) + stext.focus_set() + stext.mainloop() + + +if __name__ == "__main__": + example() diff --git a/Lib/tkinter/simpledialog.py b/Lib/tkinter/simpledialog.py new file mode 100644 index 0000000000..6e5b025a9f --- /dev/null +++ b/Lib/tkinter/simpledialog.py @@ -0,0 +1,441 @@ +# +# An Introduction to Tkinter +# +# Copyright (c) 1997 by Fredrik Lundh +# +# This copyright applies to Dialog, askinteger, askfloat and asktring +# +# fredrik@pythonware.com +# http://www.pythonware.com +# +"""This modules handles dialog boxes. + +It contains the following public symbols: + +SimpleDialog -- A simple but flexible modal dialog box + +Dialog -- a base class for dialogs + +askinteger -- get an integer from the user + +askfloat -- get a float from the user + +askstring -- get a string from the user +""" + +from tkinter import * +from tkinter import _get_temp_root, _destroy_temp_root +from tkinter import messagebox + + +class SimpleDialog: + + def __init__(self, master, + text='', buttons=[], default=None, cancel=None, + title=None, class_=None): + if class_: + self.root = Toplevel(master, class_=class_) + else: + self.root = Toplevel(master) + if title: + self.root.title(title) + self.root.iconname(title) + + _setup_dialog(self.root) + + self.message = Message(self.root, text=text, aspect=400) + self.message.pack(expand=1, fill=BOTH) + self.frame = Frame(self.root) + self.frame.pack() + self.num = default + self.cancel = cancel + self.default = default + self.root.bind('', self.return_event) + for num in range(len(buttons)): + s = buttons[num] + b = Button(self.frame, text=s, + command=(lambda self=self, num=num: self.done(num))) + if num == default: + b.config(relief=RIDGE, borderwidth=8) + b.pack(side=LEFT, fill=BOTH, expand=1) + self.root.protocol('WM_DELETE_WINDOW', self.wm_delete_window) + self.root.transient(master) + _place_window(self.root, master) + + def go(self): + self.root.wait_visibility() + self.root.grab_set() + self.root.mainloop() + self.root.destroy() + return self.num + + def return_event(self, event): + if self.default is None: + self.root.bell() + else: + self.done(self.default) + + def wm_delete_window(self): + if self.cancel is None: + self.root.bell() + else: + self.done(self.cancel) + + def done(self, num): + self.num = num + self.root.quit() + + +class Dialog(Toplevel): + + '''Class to open dialogs. + + This class is intended as a base class for custom dialogs + ''' + + def __init__(self, parent, title = None): + '''Initialize a dialog. + + Arguments: + + parent -- a parent window (the application window) + + title -- the dialog title + ''' + master = parent + if master is None: + master = _get_temp_root() + + Toplevel.__init__(self, master) + + self.withdraw() # remain invisible for now + # If the parent is not viewable, don't + # make the child transient, or else it + # would be opened withdrawn + if parent is not None and parent.winfo_viewable(): + self.transient(parent) + + if title: + self.title(title) + + _setup_dialog(self) + + self.parent = parent + + self.result = None + + body = Frame(self) + self.initial_focus = self.body(body) + body.pack(padx=5, pady=5) + + self.buttonbox() + + if self.initial_focus is None: + self.initial_focus = self + + self.protocol("WM_DELETE_WINDOW", self.cancel) + + _place_window(self, parent) + + self.initial_focus.focus_set() + + # wait for window to appear on screen before calling grab_set + self.wait_visibility() + self.grab_set() + self.wait_window(self) + + def destroy(self): + '''Destroy the window''' + self.initial_focus = None + Toplevel.destroy(self) + _destroy_temp_root(self.master) + + # + # construction hooks + + def body(self, master): + '''create dialog body. + + return widget that should have initial focus. + This method should be overridden, and is called + by the __init__ method. + ''' + pass + + def buttonbox(self): + '''add standard button box. + + override if you do not want the standard buttons + ''' + + box = Frame(self) + + w = Button(box, text="OK", width=10, command=self.ok, default=ACTIVE) + w.pack(side=LEFT, padx=5, pady=5) + w = Button(box, text="Cancel", width=10, command=self.cancel) + w.pack(side=LEFT, padx=5, pady=5) + + self.bind("", self.ok) + self.bind("", self.cancel) + + box.pack() + + # + # standard button semantics + + def ok(self, event=None): + + if not self.validate(): + self.initial_focus.focus_set() # put focus back + return + + self.withdraw() + self.update_idletasks() + + try: + self.apply() + finally: + self.cancel() + + def cancel(self, event=None): + + # put focus back to the parent window + if self.parent is not None: + self.parent.focus_set() + self.destroy() + + # + # command hooks + + def validate(self): + '''validate the data + + This method is called automatically to validate the data before the + dialog is destroyed. By default, it always validates OK. + ''' + + return 1 # override + + def apply(self): + '''process the data + + This method is called automatically to process the data, *after* + the dialog is destroyed. By default, it does nothing. + ''' + + pass # override + + +# Place a toplevel window at the center of parent or screen +# It is a Python implementation of ::tk::PlaceWindow. +def _place_window(w, parent=None): + w.wm_withdraw() # Remain invisible while we figure out the geometry + w.update_idletasks() # Actualize geometry information + + minwidth = w.winfo_reqwidth() + minheight = w.winfo_reqheight() + maxwidth = w.winfo_vrootwidth() + maxheight = w.winfo_vrootheight() + if parent is not None and parent.winfo_ismapped(): + x = parent.winfo_rootx() + (parent.winfo_width() - minwidth) // 2 + y = parent.winfo_rooty() + (parent.winfo_height() - minheight) // 2 + vrootx = w.winfo_vrootx() + vrooty = w.winfo_vrooty() + x = min(x, vrootx + maxwidth - minwidth) + x = max(x, vrootx) + y = min(y, vrooty + maxheight - minheight) + y = max(y, vrooty) + if w._windowingsystem == 'aqua': + # Avoid the native menu bar which sits on top of everything. + y = max(y, 22) + else: + x = (w.winfo_screenwidth() - minwidth) // 2 + y = (w.winfo_screenheight() - minheight) // 2 + + w.wm_maxsize(maxwidth, maxheight) + w.wm_geometry('+%d+%d' % (x, y)) + w.wm_deiconify() # Become visible at the desired location + + +def _setup_dialog(w): + if w._windowingsystem == "aqua": + w.tk.call("::tk::unsupported::MacWindowStyle", "style", + w, "moveableModal", "") + elif w._windowingsystem == "x11": + w.wm_attributes(type="dialog") + +# -------------------------------------------------------------------- +# convenience dialogues + +class _QueryDialog(Dialog): + + def __init__(self, title, prompt, + initialvalue=None, + minvalue = None, maxvalue = None, + parent = None): + + self.prompt = prompt + self.minvalue = minvalue + self.maxvalue = maxvalue + + self.initialvalue = initialvalue + + Dialog.__init__(self, parent, title) + + def destroy(self): + self.entry = None + Dialog.destroy(self) + + def body(self, master): + + w = Label(master, text=self.prompt, justify=LEFT) + w.grid(row=0, padx=5, sticky=W) + + self.entry = Entry(master, name="entry") + self.entry.grid(row=1, padx=5, sticky=W+E) + + if self.initialvalue is not None: + self.entry.insert(0, self.initialvalue) + self.entry.select_range(0, END) + + return self.entry + + def validate(self): + try: + result = self.getresult() + except ValueError: + messagebox.showwarning( + "Illegal value", + self.errormessage + "\nPlease try again", + parent = self + ) + return 0 + + if self.minvalue is not None and result < self.minvalue: + messagebox.showwarning( + "Too small", + "The allowed minimum value is %s. " + "Please try again." % self.minvalue, + parent = self + ) + return 0 + + if self.maxvalue is not None and result > self.maxvalue: + messagebox.showwarning( + "Too large", + "The allowed maximum value is %s. " + "Please try again." % self.maxvalue, + parent = self + ) + return 0 + + self.result = result + + return 1 + + +class _QueryInteger(_QueryDialog): + errormessage = "Not an integer." + + def getresult(self): + return self.getint(self.entry.get()) + + +def askinteger(title, prompt, **kw): + '''get an integer from the user + + Arguments: + + title -- the dialog title + prompt -- the label text + **kw -- see SimpleDialog class + + Return value is an integer + ''' + d = _QueryInteger(title, prompt, **kw) + return d.result + + +class _QueryFloat(_QueryDialog): + errormessage = "Not a floating-point value." + + def getresult(self): + return self.getdouble(self.entry.get()) + + +def askfloat(title, prompt, **kw): + '''get a float from the user + + Arguments: + + title -- the dialog title + prompt -- the label text + **kw -- see SimpleDialog class + + Return value is a float + ''' + d = _QueryFloat(title, prompt, **kw) + return d.result + + +class _QueryString(_QueryDialog): + def __init__(self, *args, **kw): + if "show" in kw: + self.__show = kw["show"] + del kw["show"] + else: + self.__show = None + _QueryDialog.__init__(self, *args, **kw) + + def body(self, master): + entry = _QueryDialog.body(self, master) + if self.__show is not None: + entry.configure(show=self.__show) + return entry + + def getresult(self): + return self.entry.get() + + +def askstring(title, prompt, **kw): + '''get a string from the user + + Arguments: + + title -- the dialog title + prompt -- the label text + **kw -- see SimpleDialog class + + Return value is a string + ''' + d = _QueryString(title, prompt, **kw) + return d.result + + +if __name__ == '__main__': + + def test(): + root = Tk() + def doit(root=root): + d = SimpleDialog(root, + text="This is a test dialog. " + "Would this have been an actual dialog, " + "the buttons below would have been glowing " + "in soft pink light.\n" + "Do you believe this?", + buttons=["Yes", "No", "Cancel"], + default=0, + cancel=2, + title="Test Dialog") + print(d.go()) + print(askinteger("Spam", "Egg count", initialvalue=12*12)) + print(askfloat("Spam", "Egg weight\n(in tons)", minvalue=1, + maxvalue=100)) + print(askstring("Spam", "Egg label")) + t = Button(root, text='Test', command=doit) + t.pack() + q = Button(root, text='Quit', command=t.quit) + q.pack() + t.mainloop() + + test() diff --git a/Lib/tkinter/ttk.py b/Lib/tkinter/ttk.py new file mode 100644 index 0000000000..073b3ae207 --- /dev/null +++ b/Lib/tkinter/ttk.py @@ -0,0 +1,1647 @@ +"""Ttk wrapper. + +This module provides classes to allow using Tk themed widget set. + +Ttk is based on a revised and enhanced version of +TIP #48 (http://tip.tcl.tk/48) specified style engine. + +Its basic idea is to separate, to the extent possible, the code +implementing a widget's behavior from the code implementing its +appearance. Widget class bindings are primarily responsible for +maintaining the widget state and invoking callbacks, all aspects +of the widgets appearance lies at Themes. +""" + +__version__ = "0.3.1" + +__author__ = "Guilherme Polo " + +__all__ = ["Button", "Checkbutton", "Combobox", "Entry", "Frame", "Label", + "Labelframe", "LabelFrame", "Menubutton", "Notebook", "Panedwindow", + "PanedWindow", "Progressbar", "Radiobutton", "Scale", "Scrollbar", + "Separator", "Sizegrip", "Spinbox", "Style", "Treeview", + # Extensions + "LabeledScale", "OptionMenu", + # functions + "tclobjs_to_py", "setup_master"] + +import tkinter +from tkinter import _flatten, _join, _stringify, _splitdict + + +def _format_optvalue(value, script=False): + """Internal function.""" + if script: + # if caller passes a Tcl script to tk.call, all the values need to + # be grouped into words (arguments to a command in Tcl dialect) + value = _stringify(value) + elif isinstance(value, (list, tuple)): + value = _join(value) + return value + +def _format_optdict(optdict, script=False, ignore=None): + """Formats optdict to a tuple to pass it to tk.call. + + E.g. (script=False): + {'foreground': 'blue', 'padding': [1, 2, 3, 4]} returns: + ('-foreground', 'blue', '-padding', '1 2 3 4')""" + + opts = [] + for opt, value in optdict.items(): + if not ignore or opt not in ignore: + opts.append("-%s" % opt) + if value is not None: + opts.append(_format_optvalue(value, script)) + + return _flatten(opts) + +def _mapdict_values(items): + # each value in mapdict is expected to be a sequence, where each item + # is another sequence containing a state (or several) and a value + # E.g. (script=False): + # [('active', 'selected', 'grey'), ('focus', [1, 2, 3, 4])] + # returns: + # ['active selected', 'grey', 'focus', [1, 2, 3, 4]] + opt_val = [] + for *state, val in items: + if len(state) == 1: + # if it is empty (something that evaluates to False), then + # format it to Tcl code to denote the "normal" state + state = state[0] or '' + else: + # group multiple states + state = ' '.join(state) # raise TypeError if not str + opt_val.append(state) + if val is not None: + opt_val.append(val) + return opt_val + +def _format_mapdict(mapdict, script=False): + """Formats mapdict to pass it to tk.call. + + E.g. (script=False): + {'expand': [('active', 'selected', 'grey'), ('focus', [1, 2, 3, 4])]} + + returns: + + ('-expand', '{active selected} grey focus {1, 2, 3, 4}')""" + + opts = [] + for opt, value in mapdict.items(): + opts.extend(("-%s" % opt, + _format_optvalue(_mapdict_values(value), script))) + + return _flatten(opts) + +def _format_elemcreate(etype, script=False, *args, **kw): + """Formats args and kw according to the given element factory etype.""" + specs = () + opts = () + if etype == "image": # define an element based on an image + # first arg should be the default image name + iname = args[0] + # next args, if any, are statespec/value pairs which is almost + # a mapdict, but we just need the value + imagespec = (iname, *_mapdict_values(args[1:])) + if script: + specs = (imagespec,) + else: + specs = (_join(imagespec),) + opts = _format_optdict(kw, script) + + if etype == "vsapi": + # define an element whose visual appearance is drawn using the + # Microsoft Visual Styles API which is responsible for the + # themed styles on Windows XP and Vista. + # Availability: Tk 8.6, Windows XP and Vista. + if len(args) < 3: + class_name, part_id = args + statemap = (((), 1),) + else: + class_name, part_id, statemap = args + specs = (class_name, part_id, tuple(_mapdict_values(statemap))) + opts = _format_optdict(kw, script) + + elif etype == "from": # clone an element + # it expects a themename and optionally an element to clone from, + # otherwise it will clone {} (empty element) + specs = (args[0],) # theme name + if len(args) > 1: # elementfrom specified + opts = (_format_optvalue(args[1], script),) + + if script: + specs = _join(specs) + opts = ' '.join(opts) + return specs, opts + else: + return *specs, opts + + +def _format_layoutlist(layout, indent=0, indent_size=2): + """Formats a layout list so we can pass the result to ttk::style + layout and ttk::style settings. Note that the layout doesn't have to + be a list necessarily. + + E.g.: + [("Menubutton.background", None), + ("Menubutton.button", {"children": + [("Menubutton.focus", {"children": + [("Menubutton.padding", {"children": + [("Menubutton.label", {"side": "left", "expand": 1})] + })] + })] + }), + ("Menubutton.indicator", {"side": "right"}) + ] + + returns: + + Menubutton.background + Menubutton.button -children { + Menubutton.focus -children { + Menubutton.padding -children { + Menubutton.label -side left -expand 1 + } + } + } + Menubutton.indicator -side right""" + script = [] + + for layout_elem in layout: + elem, opts = layout_elem + opts = opts or {} + fopts = ' '.join(_format_optdict(opts, True, ("children",))) + head = "%s%s%s" % (' ' * indent, elem, (" %s" % fopts) if fopts else '') + + if "children" in opts: + script.append(head + " -children {") + indent += indent_size + newscript, indent = _format_layoutlist(opts['children'], indent, + indent_size) + script.append(newscript) + indent -= indent_size + script.append('%s}' % (' ' * indent)) + else: + script.append(head) + + return '\n'.join(script), indent + +def _script_from_settings(settings): + """Returns an appropriate script, based on settings, according to + theme_settings definition to be used by theme_settings and + theme_create.""" + script = [] + # a script will be generated according to settings passed, which + # will then be evaluated by Tcl + for name, opts in settings.items(): + # will format specific keys according to Tcl code + if opts.get('configure'): # format 'configure' + s = ' '.join(_format_optdict(opts['configure'], True)) + script.append("ttk::style configure %s %s;" % (name, s)) + + if opts.get('map'): # format 'map' + s = ' '.join(_format_mapdict(opts['map'], True)) + script.append("ttk::style map %s %s;" % (name, s)) + + if 'layout' in opts: # format 'layout' which may be empty + if not opts['layout']: + s = 'null' # could be any other word, but this one makes sense + else: + s, _ = _format_layoutlist(opts['layout']) + script.append("ttk::style layout %s {\n%s\n}" % (name, s)) + + if opts.get('element create'): # format 'element create' + eopts = opts['element create'] + etype = eopts[0] + + # find where args end, and where kwargs start + argc = 1 # etype was the first one + while argc < len(eopts) and not hasattr(eopts[argc], 'items'): + argc += 1 + + elemargs = eopts[1:argc] + elemkw = eopts[argc] if argc < len(eopts) and eopts[argc] else {} + specs, eopts = _format_elemcreate(etype, True, *elemargs, **elemkw) + + script.append("ttk::style element create %s %s %s %s" % ( + name, etype, specs, eopts)) + + return '\n'.join(script) + +def _list_from_statespec(stuple): + """Construct a list from the given statespec tuple according to the + accepted statespec accepted by _format_mapdict.""" + if isinstance(stuple, str): + return stuple + result = [] + it = iter(stuple) + for state, val in zip(it, it): + if hasattr(state, 'typename'): # this is a Tcl object + state = str(state).split() + elif isinstance(state, str): + state = state.split() + elif not isinstance(state, (tuple, list)): + state = (state,) + if hasattr(val, 'typename'): + val = str(val) + result.append((*state, val)) + + return result + +def _list_from_layouttuple(tk, ltuple): + """Construct a list from the tuple returned by ttk::layout, this is + somewhat the reverse of _format_layoutlist.""" + ltuple = tk.splitlist(ltuple) + res = [] + + indx = 0 + while indx < len(ltuple): + name = ltuple[indx] + opts = {} + res.append((name, opts)) + indx += 1 + + while indx < len(ltuple): # grab name's options + opt, val = ltuple[indx:indx + 2] + if not opt.startswith('-'): # found next name + break + + opt = opt[1:] # remove the '-' from the option + indx += 2 + + if opt == 'children': + val = _list_from_layouttuple(tk, val) + + opts[opt] = val + + return res + +def _val_or_dict(tk, options, *args): + """Format options then call Tk command with args and options and return + the appropriate result. + + If no option is specified, a dict is returned. If an option is + specified with the None value, the value for that option is returned. + Otherwise, the function just sets the passed options and the caller + shouldn't be expecting a return value anyway.""" + options = _format_optdict(options) + res = tk.call(*(args + options)) + + if len(options) % 2: # option specified without a value, return its value + return res + + return _splitdict(tk, res, conv=_tclobj_to_py) + +def _convert_stringval(value): + """Converts a value to, hopefully, a more appropriate Python object.""" + value = str(value) + try: + value = int(value) + except (ValueError, TypeError): + pass + + return value + +def _to_number(x): + if isinstance(x, str): + if '.' in x: + x = float(x) + else: + x = int(x) + return x + +def _tclobj_to_py(val): + """Return value converted from Tcl object to Python object.""" + if val and hasattr(val, '__len__') and not isinstance(val, str): + if getattr(val[0], 'typename', None) == 'StateSpec': + val = _list_from_statespec(val) + else: + val = list(map(_convert_stringval, val)) + + elif hasattr(val, 'typename'): # some other (single) Tcl object + val = _convert_stringval(val) + + return val + +def tclobjs_to_py(adict): + """Returns adict with its values converted from Tcl objects to Python + objects.""" + for opt, val in adict.items(): + adict[opt] = _tclobj_to_py(val) + + return adict + +def setup_master(master=None): + """If master is not None, itself is returned. If master is None, + the default master is returned if there is one, otherwise a new + master is created and returned. + + If it is not allowed to use the default root and master is None, + RuntimeError is raised.""" + if master is None: + master = tkinter._get_default_root() + return master + + +class Style(object): + """Manipulate style database.""" + + _name = "ttk::style" + + def __init__(self, master=None): + master = setup_master(master) + self.master = master + self.tk = self.master.tk + + + def configure(self, style, query_opt=None, **kw): + """Query or sets the default value of the specified option(s) in + style. + + Each key in kw is an option and each value is either a string or + a sequence identifying the value for that option.""" + if query_opt is not None: + kw[query_opt] = None + result = _val_or_dict(self.tk, kw, self._name, "configure", style) + if result or query_opt: + return result + + + def map(self, style, query_opt=None, **kw): + """Query or sets dynamic values of the specified option(s) in + style. + + Each key in kw is an option and each value should be a list or a + tuple (usually) containing statespecs grouped in tuples, or list, + or something else of your preference. A statespec is compound of + one or more states and then a value.""" + if query_opt is not None: + result = self.tk.call(self._name, "map", style, '-%s' % query_opt) + return _list_from_statespec(self.tk.splitlist(result)) + + result = self.tk.call(self._name, "map", style, *_format_mapdict(kw)) + return {k: _list_from_statespec(self.tk.splitlist(v)) + for k, v in _splitdict(self.tk, result).items()} + + + def lookup(self, style, option, state=None, default=None): + """Returns the value specified for option in style. + + If state is specified it is expected to be a sequence of one + or more states. If the default argument is set, it is used as + a fallback value in case no specification for option is found.""" + state = ' '.join(state) if state else '' + + return self.tk.call(self._name, "lookup", style, '-%s' % option, + state, default) + + + def layout(self, style, layoutspec=None): + """Define the widget layout for given style. If layoutspec is + omitted, return the layout specification for given style. + + layoutspec is expected to be a list or an object different than + None that evaluates to False if you want to "turn off" that style. + If it is a list (or tuple, or something else), each item should be + a tuple where the first item is the layout name and the second item + should have the format described below: + + LAYOUTS + + A layout can contain the value None, if takes no options, or + a dict of options specifying how to arrange the element. + The layout mechanism uses a simplified version of the pack + geometry manager: given an initial cavity, each element is + allocated a parcel. Valid options/values are: + + side: whichside + Specifies which side of the cavity to place the + element; one of top, right, bottom or left. If + omitted, the element occupies the entire cavity. + + sticky: nswe + Specifies where the element is placed inside its + allocated parcel. + + children: [sublayout... ] + Specifies a list of elements to place inside the + element. Each element is a tuple (or other sequence) + where the first item is the layout name, and the other + is a LAYOUT.""" + lspec = None + if layoutspec: + lspec = _format_layoutlist(layoutspec)[0] + elif layoutspec is not None: # will disable the layout ({}, '', etc) + lspec = "null" # could be any other word, but this may make sense + # when calling layout(style) later + + return _list_from_layouttuple(self.tk, + self.tk.call(self._name, "layout", style, lspec)) + + + def element_create(self, elementname, etype, *args, **kw): + """Create a new element in the current theme of given etype.""" + *specs, opts = _format_elemcreate(etype, False, *args, **kw) + self.tk.call(self._name, "element", "create", elementname, etype, + *specs, *opts) + + + def element_names(self): + """Returns the list of elements defined in the current theme.""" + return tuple(n.lstrip('-') for n in self.tk.splitlist( + self.tk.call(self._name, "element", "names"))) + + + def element_options(self, elementname): + """Return the list of elementname's options.""" + return tuple(o.lstrip('-') for o in self.tk.splitlist( + self.tk.call(self._name, "element", "options", elementname))) + + + def theme_create(self, themename, parent=None, settings=None): + """Creates a new theme. + + It is an error if themename already exists. If parent is + specified, the new theme will inherit styles, elements and + layouts from the specified parent theme. If settings are present, + they are expected to have the same syntax used for theme_settings.""" + script = _script_from_settings(settings) if settings else '' + + if parent: + self.tk.call(self._name, "theme", "create", themename, + "-parent", parent, "-settings", script) + else: + self.tk.call(self._name, "theme", "create", themename, + "-settings", script) + + + def theme_settings(self, themename, settings): + """Temporarily sets the current theme to themename, apply specified + settings and then restore the previous theme. + + Each key in settings is a style and each value may contain the + keys 'configure', 'map', 'layout' and 'element create' and they + are expected to have the same format as specified by the methods + configure, map, layout and element_create respectively.""" + script = _script_from_settings(settings) + self.tk.call(self._name, "theme", "settings", themename, script) + + + def theme_names(self): + """Returns a list of all known themes.""" + return self.tk.splitlist(self.tk.call(self._name, "theme", "names")) + + + def theme_use(self, themename=None): + """If themename is None, returns the theme in use, otherwise, set + the current theme to themename, refreshes all widgets and emits + a <> event.""" + if themename is None: + # Starting on Tk 8.6, checking this global is no longer needed + # since it allows doing self.tk.call(self._name, "theme", "use") + return self.tk.eval("return $ttk::currentTheme") + + # using "ttk::setTheme" instead of "ttk::style theme use" causes + # the variable currentTheme to be updated, also, ttk::setTheme calls + # "ttk::style theme use" in order to change theme. + self.tk.call("ttk::setTheme", themename) + + +class Widget(tkinter.Widget): + """Base class for Tk themed widgets.""" + + def __init__(self, master, widgetname, kw=None): + """Constructs a Ttk Widget with the parent master. + + STANDARD OPTIONS + + class, cursor, takefocus, style + + SCROLLABLE WIDGET OPTIONS + + xscrollcommand, yscrollcommand + + LABEL WIDGET OPTIONS + + text, textvariable, underline, image, compound, width + + WIDGET STATES + + active, disabled, focus, pressed, selected, background, + readonly, alternate, invalid + """ + master = setup_master(master) + tkinter.Widget.__init__(self, master, widgetname, kw=kw) + + + def identify(self, x, y): + """Returns the name of the element at position x, y, or the empty + string if the point does not lie within any element. + + x and y are pixel coordinates relative to the widget.""" + return self.tk.call(self._w, "identify", x, y) + + + def instate(self, statespec, callback=None, *args, **kw): + """Test the widget's state. + + If callback is not specified, returns True if the widget state + matches statespec and False otherwise. If callback is specified, + then it will be invoked with *args, **kw if the widget state + matches statespec. statespec is expected to be a sequence.""" + ret = self.tk.getboolean( + self.tk.call(self._w, "instate", ' '.join(statespec))) + if ret and callback is not None: + return callback(*args, **kw) + + return ret + + + def state(self, statespec=None): + """Modify or inquire widget state. + + Widget state is returned if statespec is None, otherwise it is + set according to the statespec flags and then a new state spec + is returned indicating which flags were changed. statespec is + expected to be a sequence.""" + if statespec is not None: + statespec = ' '.join(statespec) + + return self.tk.splitlist(str(self.tk.call(self._w, "state", statespec))) + + +class Button(Widget): + """Ttk Button widget, displays a textual label and/or image, and + evaluates a command when pressed.""" + + def __init__(self, master=None, **kw): + """Construct a Ttk Button widget with the parent master. + + STANDARD OPTIONS + + class, compound, cursor, image, state, style, takefocus, + text, textvariable, underline, width + + WIDGET-SPECIFIC OPTIONS + + command, default, width + """ + Widget.__init__(self, master, "ttk::button", kw) + + + def invoke(self): + """Invokes the command associated with the button.""" + return self.tk.call(self._w, "invoke") + + +class Checkbutton(Widget): + """Ttk Checkbutton widget which is either in on- or off-state.""" + + def __init__(self, master=None, **kw): + """Construct a Ttk Checkbutton widget with the parent master. + + STANDARD OPTIONS + + class, compound, cursor, image, state, style, takefocus, + text, textvariable, underline, width + + WIDGET-SPECIFIC OPTIONS + + command, offvalue, onvalue, variable + """ + Widget.__init__(self, master, "ttk::checkbutton", kw) + + + def invoke(self): + """Toggles between the selected and deselected states and + invokes the associated command. If the widget is currently + selected, sets the option variable to the offvalue option + and deselects the widget; otherwise, sets the option variable + to the option onvalue. + + Returns the result of the associated command.""" + return self.tk.call(self._w, "invoke") + + +class Entry(Widget, tkinter.Entry): + """Ttk Entry widget displays a one-line text string and allows that + string to be edited by the user.""" + + def __init__(self, master=None, widget=None, **kw): + """Constructs a Ttk Entry widget with the parent master. + + STANDARD OPTIONS + + class, cursor, style, takefocus, xscrollcommand + + WIDGET-SPECIFIC OPTIONS + + exportselection, invalidcommand, justify, show, state, + textvariable, validate, validatecommand, width + + VALIDATION MODES + + none, key, focus, focusin, focusout, all + """ + Widget.__init__(self, master, widget or "ttk::entry", kw) + + + def bbox(self, index): + """Return a tuple of (x, y, width, height) which describes the + bounding box of the character given by index.""" + return self._getints(self.tk.call(self._w, "bbox", index)) + + + def identify(self, x, y): + """Returns the name of the element at position x, y, or the + empty string if the coordinates are outside the window.""" + return self.tk.call(self._w, "identify", x, y) + + + def validate(self): + """Force revalidation, independent of the conditions specified + by the validate option. Returns False if validation fails, True + if it succeeds. Sets or clears the invalid state accordingly.""" + return self.tk.getboolean(self.tk.call(self._w, "validate")) + + +class Combobox(Entry): + """Ttk Combobox widget combines a text field with a pop-down list of + values.""" + + def __init__(self, master=None, **kw): + """Construct a Ttk Combobox widget with the parent master. + + STANDARD OPTIONS + + class, cursor, style, takefocus + + WIDGET-SPECIFIC OPTIONS + + exportselection, justify, height, postcommand, state, + textvariable, values, width + """ + Entry.__init__(self, master, "ttk::combobox", **kw) + + + def current(self, newindex=None): + """If newindex is supplied, sets the combobox value to the + element at position newindex in the list of values. Otherwise, + returns the index of the current value in the list of values + or -1 if the current value does not appear in the list.""" + if newindex is None: + res = self.tk.call(self._w, "current") + if res == '': + return -1 + return self.tk.getint(res) + return self.tk.call(self._w, "current", newindex) + + + def set(self, value): + """Sets the value of the combobox to value.""" + self.tk.call(self._w, "set", value) + + +class Frame(Widget): + """Ttk Frame widget is a container, used to group other widgets + together.""" + + def __init__(self, master=None, **kw): + """Construct a Ttk Frame with parent master. + + STANDARD OPTIONS + + class, cursor, style, takefocus + + WIDGET-SPECIFIC OPTIONS + + borderwidth, relief, padding, width, height + """ + Widget.__init__(self, master, "ttk::frame", kw) + + +class Label(Widget): + """Ttk Label widget displays a textual label and/or image.""" + + def __init__(self, master=None, **kw): + """Construct a Ttk Label with parent master. + + STANDARD OPTIONS + + class, compound, cursor, image, style, takefocus, text, + textvariable, underline, width + + WIDGET-SPECIFIC OPTIONS + + anchor, background, font, foreground, justify, padding, + relief, text, wraplength + """ + Widget.__init__(self, master, "ttk::label", kw) + + +class Labelframe(Widget): + """Ttk Labelframe widget is a container used to group other widgets + together. It has an optional label, which may be a plain text string + or another widget.""" + + def __init__(self, master=None, **kw): + """Construct a Ttk Labelframe with parent master. + + STANDARD OPTIONS + + class, cursor, style, takefocus + + WIDGET-SPECIFIC OPTIONS + labelanchor, text, underline, padding, labelwidget, width, + height + """ + Widget.__init__(self, master, "ttk::labelframe", kw) + +LabelFrame = Labelframe # tkinter name compatibility + + +class Menubutton(Widget): + """Ttk Menubutton widget displays a textual label and/or image, and + displays a menu when pressed.""" + + def __init__(self, master=None, **kw): + """Construct a Ttk Menubutton with parent master. + + STANDARD OPTIONS + + class, compound, cursor, image, state, style, takefocus, + text, textvariable, underline, width + + WIDGET-SPECIFIC OPTIONS + + direction, menu + """ + Widget.__init__(self, master, "ttk::menubutton", kw) + + +class Notebook(Widget): + """Ttk Notebook widget manages a collection of windows and displays + a single one at a time. Each child window is associated with a tab, + which the user may select to change the currently-displayed window.""" + + def __init__(self, master=None, **kw): + """Construct a Ttk Notebook with parent master. + + STANDARD OPTIONS + + class, cursor, style, takefocus + + WIDGET-SPECIFIC OPTIONS + + height, padding, width + + TAB OPTIONS + + state, sticky, padding, text, image, compound, underline + + TAB IDENTIFIERS (tab_id) + + The tab_id argument found in several methods may take any of + the following forms: + + * An integer between zero and the number of tabs + * The name of a child window + * A positional specification of the form "@x,y", which + defines the tab + * The string "current", which identifies the + currently-selected tab + * The string "end", which returns the number of tabs (only + valid for method index) + """ + Widget.__init__(self, master, "ttk::notebook", kw) + + + def add(self, child, **kw): + """Adds a new tab to the notebook. + + If window is currently managed by the notebook but hidden, it is + restored to its previous position.""" + self.tk.call(self._w, "add", child, *(_format_optdict(kw))) + + + def forget(self, tab_id): + """Removes the tab specified by tab_id, unmaps and unmanages the + associated window.""" + self.tk.call(self._w, "forget", tab_id) + + + def hide(self, tab_id): + """Hides the tab specified by tab_id. + + The tab will not be displayed, but the associated window remains + managed by the notebook and its configuration remembered. Hidden + tabs may be restored with the add command.""" + self.tk.call(self._w, "hide", tab_id) + + + def identify(self, x, y): + """Returns the name of the tab element at position x, y, or the + empty string if none.""" + return self.tk.call(self._w, "identify", x, y) + + + def index(self, tab_id): + """Returns the numeric index of the tab specified by tab_id, or + the total number of tabs if tab_id is the string "end".""" + return self.tk.getint(self.tk.call(self._w, "index", tab_id)) + + + def insert(self, pos, child, **kw): + """Inserts a pane at the specified position. + + pos is either the string end, an integer index, or the name of + a managed child. If child is already managed by the notebook, + moves it to the specified position.""" + self.tk.call(self._w, "insert", pos, child, *(_format_optdict(kw))) + + + def select(self, tab_id=None): + """Selects the specified tab. + + The associated child window will be displayed, and the + previously-selected window (if different) is unmapped. If tab_id + is omitted, returns the widget name of the currently selected + pane.""" + return self.tk.call(self._w, "select", tab_id) + + + def tab(self, tab_id, option=None, **kw): + """Query or modify the options of the specific tab_id. + + If kw is not given, returns a dict of the tab option values. If option + is specified, returns the value of that option. Otherwise, sets the + options to the corresponding values.""" + if option is not None: + kw[option] = None + return _val_or_dict(self.tk, kw, self._w, "tab", tab_id) + + + def tabs(self): + """Returns a list of windows managed by the notebook.""" + return self.tk.splitlist(self.tk.call(self._w, "tabs") or ()) + + + def enable_traversal(self): + """Enable keyboard traversal for a toplevel window containing + this notebook. + + This will extend the bindings for the toplevel window containing + this notebook as follows: + + Control-Tab: selects the tab following the currently selected + one + + Shift-Control-Tab: selects the tab preceding the currently + selected one + + Alt-K: where K is the mnemonic (underlined) character of any + tab, will select that tab. + + Multiple notebooks in a single toplevel may be enabled for + traversal, including nested notebooks. However, notebook traversal + only works properly if all panes are direct children of the + notebook.""" + # The only, and good, difference I see is about mnemonics, which works + # after calling this method. Control-Tab and Shift-Control-Tab always + # works (here at least). + self.tk.call("ttk::notebook::enableTraversal", self._w) + + +class Panedwindow(Widget, tkinter.PanedWindow): + """Ttk Panedwindow widget displays a number of subwindows, stacked + either vertically or horizontally.""" + + def __init__(self, master=None, **kw): + """Construct a Ttk Panedwindow with parent master. + + STANDARD OPTIONS + + class, cursor, style, takefocus + + WIDGET-SPECIFIC OPTIONS + + orient, width, height + + PANE OPTIONS + + weight + """ + Widget.__init__(self, master, "ttk::panedwindow", kw) + + + forget = tkinter.PanedWindow.forget # overrides Pack.forget + + + def insert(self, pos, child, **kw): + """Inserts a pane at the specified positions. + + pos is either the string end, and integer index, or the name + of a child. If child is already managed by the paned window, + moves it to the specified position.""" + self.tk.call(self._w, "insert", pos, child, *(_format_optdict(kw))) + + + def pane(self, pane, option=None, **kw): + """Query or modify the options of the specified pane. + + pane is either an integer index or the name of a managed subwindow. + If kw is not given, returns a dict of the pane option values. If + option is specified then the value for that option is returned. + Otherwise, sets the options to the corresponding values.""" + if option is not None: + kw[option] = None + return _val_or_dict(self.tk, kw, self._w, "pane", pane) + + + def sashpos(self, index, newpos=None): + """If newpos is specified, sets the position of sash number index. + + May adjust the positions of adjacent sashes to ensure that + positions are monotonically increasing. Sash positions are further + constrained to be between 0 and the total size of the widget. + + Returns the new position of sash number index.""" + return self.tk.getint(self.tk.call(self._w, "sashpos", index, newpos)) + +PanedWindow = Panedwindow # tkinter name compatibility + + +class Progressbar(Widget): + """Ttk Progressbar widget shows the status of a long-running + operation. They can operate in two modes: determinate mode shows the + amount completed relative to the total amount of work to be done, and + indeterminate mode provides an animated display to let the user know + that something is happening.""" + + def __init__(self, master=None, **kw): + """Construct a Ttk Progressbar with parent master. + + STANDARD OPTIONS + + class, cursor, style, takefocus + + WIDGET-SPECIFIC OPTIONS + + orient, length, mode, maximum, value, variable, phase + """ + Widget.__init__(self, master, "ttk::progressbar", kw) + + + def start(self, interval=None): + """Begin autoincrement mode: schedules a recurring timer event + that calls method step every interval milliseconds. + + interval defaults to 50 milliseconds (20 steps/second) if omitted.""" + self.tk.call(self._w, "start", interval) + + + def step(self, amount=None): + """Increments the value option by amount. + + amount defaults to 1.0 if omitted.""" + self.tk.call(self._w, "step", amount) + + + def stop(self): + """Stop autoincrement mode: cancels any recurring timer event + initiated by start.""" + self.tk.call(self._w, "stop") + + +class Radiobutton(Widget): + """Ttk Radiobutton widgets are used in groups to show or change a + set of mutually-exclusive options.""" + + def __init__(self, master=None, **kw): + """Construct a Ttk Radiobutton with parent master. + + STANDARD OPTIONS + + class, compound, cursor, image, state, style, takefocus, + text, textvariable, underline, width + + WIDGET-SPECIFIC OPTIONS + + command, value, variable + """ + Widget.__init__(self, master, "ttk::radiobutton", kw) + + + def invoke(self): + """Sets the option variable to the option value, selects the + widget, and invokes the associated command. + + Returns the result of the command, or an empty string if + no command is specified.""" + return self.tk.call(self._w, "invoke") + + +class Scale(Widget, tkinter.Scale): + """Ttk Scale widget is typically used to control the numeric value of + a linked variable that varies uniformly over some range.""" + + def __init__(self, master=None, **kw): + """Construct a Ttk Scale with parent master. + + STANDARD OPTIONS + + class, cursor, style, takefocus + + WIDGET-SPECIFIC OPTIONS + + command, from, length, orient, to, value, variable + """ + Widget.__init__(self, master, "ttk::scale", kw) + + + def configure(self, cnf=None, **kw): + """Modify or query scale options. + + Setting a value for any of the "from", "from_" or "to" options + generates a <> event.""" + retval = Widget.configure(self, cnf, **kw) + if not isinstance(cnf, (type(None), str)): + kw.update(cnf) + if any(['from' in kw, 'from_' in kw, 'to' in kw]): + self.event_generate('<>') + return retval + + + def get(self, x=None, y=None): + """Get the current value of the value option, or the value + corresponding to the coordinates x, y if they are specified. + + x and y are pixel coordinates relative to the scale widget + origin.""" + return self.tk.call(self._w, 'get', x, y) + + +class Scrollbar(Widget, tkinter.Scrollbar): + """Ttk Scrollbar controls the viewport of a scrollable widget.""" + + def __init__(self, master=None, **kw): + """Construct a Ttk Scrollbar with parent master. + + STANDARD OPTIONS + + class, cursor, style, takefocus + + WIDGET-SPECIFIC OPTIONS + + command, orient + """ + Widget.__init__(self, master, "ttk::scrollbar", kw) + + +class Separator(Widget): + """Ttk Separator widget displays a horizontal or vertical separator + bar.""" + + def __init__(self, master=None, **kw): + """Construct a Ttk Separator with parent master. + + STANDARD OPTIONS + + class, cursor, style, takefocus + + WIDGET-SPECIFIC OPTIONS + + orient + """ + Widget.__init__(self, master, "ttk::separator", kw) + + +class Sizegrip(Widget): + """Ttk Sizegrip allows the user to resize the containing toplevel + window by pressing and dragging the grip.""" + + def __init__(self, master=None, **kw): + """Construct a Ttk Sizegrip with parent master. + + STANDARD OPTIONS + + class, cursor, state, style, takefocus + """ + Widget.__init__(self, master, "ttk::sizegrip", kw) + + +class Spinbox(Entry): + """Ttk Spinbox is an Entry with increment and decrement arrows + + It is commonly used for number entry or to select from a list of + string values. + """ + + def __init__(self, master=None, **kw): + """Construct a Ttk Spinbox widget with the parent master. + + STANDARD OPTIONS + + class, cursor, style, takefocus, validate, + validatecommand, xscrollcommand, invalidcommand + + WIDGET-SPECIFIC OPTIONS + + to, from_, increment, values, wrap, format, command + """ + Entry.__init__(self, master, "ttk::spinbox", **kw) + + + def set(self, value): + """Sets the value of the Spinbox to value.""" + self.tk.call(self._w, "set", value) + + +class Treeview(Widget, tkinter.XView, tkinter.YView): + """Ttk Treeview widget displays a hierarchical collection of items. + + Each item has a textual label, an optional image, and an optional list + of data values. The data values are displayed in successive columns + after the tree label.""" + + def __init__(self, master=None, **kw): + """Construct a Ttk Treeview with parent master. + + STANDARD OPTIONS + + class, cursor, style, takefocus, xscrollcommand, + yscrollcommand + + WIDGET-SPECIFIC OPTIONS + + columns, displaycolumns, height, padding, selectmode, show + + ITEM OPTIONS + + text, image, values, open, tags + + TAG OPTIONS + + foreground, background, font, image + """ + Widget.__init__(self, master, "ttk::treeview", kw) + + + def bbox(self, item, column=None): + """Returns the bounding box (relative to the treeview widget's + window) of the specified item in the form x y width height. + + If column is specified, returns the bounding box of that cell. + If the item is not visible (i.e., if it is a descendant of a + closed item or is scrolled offscreen), returns an empty string.""" + return self._getints(self.tk.call(self._w, "bbox", item, column)) or '' + + + def get_children(self, item=None): + """Returns a tuple of children belonging to item. + + If item is not specified, returns root children.""" + return self.tk.splitlist( + self.tk.call(self._w, "children", item or '') or ()) + + + def set_children(self, item, *newchildren): + """Replaces item's child with newchildren. + + Children present in item that are not present in newchildren + are detached from tree. No items in newchildren may be an + ancestor of item.""" + self.tk.call(self._w, "children", item, newchildren) + + + def column(self, column, option=None, **kw): + """Query or modify the options for the specified column. + + If kw is not given, returns a dict of the column option values. If + option is specified then the value for that option is returned. + Otherwise, sets the options to the corresponding values.""" + if option is not None: + kw[option] = None + return _val_or_dict(self.tk, kw, self._w, "column", column) + + + def delete(self, *items): + """Delete all specified items and all their descendants. The root + item may not be deleted.""" + self.tk.call(self._w, "delete", items) + + + def detach(self, *items): + """Unlinks all of the specified items from the tree. + + The items and all of their descendants are still present, and may + be reinserted at another point in the tree, but will not be + displayed. The root item may not be detached.""" + self.tk.call(self._w, "detach", items) + + + def exists(self, item): + """Returns True if the specified item is present in the tree, + False otherwise.""" + return self.tk.getboolean(self.tk.call(self._w, "exists", item)) + + + def focus(self, item=None): + """If item is specified, sets the focus item to item. Otherwise, + returns the current focus item, or '' if there is none.""" + return self.tk.call(self._w, "focus", item) + + + def heading(self, column, option=None, **kw): + """Query or modify the heading options for the specified column. + + If kw is not given, returns a dict of the heading option values. If + option is specified then the value for that option is returned. + Otherwise, sets the options to the corresponding values. + + Valid options/values are: + text: text + The text to display in the column heading + image: image_name + Specifies an image to display to the right of the column + heading + anchor: anchor + Specifies how the heading text should be aligned. One of + the standard Tk anchor values + command: callback + A callback to be invoked when the heading label is + pressed. + + To configure the tree column heading, call this with column = "#0" """ + cmd = kw.get('command') + if cmd and not isinstance(cmd, str): + # callback not registered yet, do it now + kw['command'] = self.master.register(cmd, self._substitute) + + if option is not None: + kw[option] = None + + return _val_or_dict(self.tk, kw, self._w, 'heading', column) + + + def identify(self, component, x, y): + """Returns a description of the specified component under the + point given by x and y, or the empty string if no such component + is present at that position.""" + return self.tk.call(self._w, "identify", component, x, y) + + + def identify_row(self, y): + """Returns the item ID of the item at position y.""" + return self.identify("row", 0, y) + + + def identify_column(self, x): + """Returns the data column identifier of the cell at position x. + + The tree column has ID #0.""" + return self.identify("column", x, 0) + + + def identify_region(self, x, y): + """Returns one of: + + heading: Tree heading area. + separator: Space between two columns headings; + tree: The tree area. + cell: A data cell. + + * Availability: Tk 8.6""" + return self.identify("region", x, y) + + + def identify_element(self, x, y): + """Returns the element at position x, y. + + * Availability: Tk 8.6""" + return self.identify("element", x, y) + + + def index(self, item): + """Returns the integer index of item within its parent's list + of children.""" + return self.tk.getint(self.tk.call(self._w, "index", item)) + + + def insert(self, parent, index, iid=None, **kw): + """Creates a new item and return the item identifier of the newly + created item. + + parent is the item ID of the parent item, or the empty string + to create a new top-level item. index is an integer, or the value + end, specifying where in the list of parent's children to insert + the new item. If index is less than or equal to zero, the new node + is inserted at the beginning, if index is greater than or equal to + the current number of children, it is inserted at the end. If iid + is specified, it is used as the item identifier, iid must not + already exist in the tree. Otherwise, a new unique identifier + is generated.""" + opts = _format_optdict(kw) + if iid is not None: + res = self.tk.call(self._w, "insert", parent, index, + "-id", iid, *opts) + else: + res = self.tk.call(self._w, "insert", parent, index, *opts) + + return res + + + def item(self, item, option=None, **kw): + """Query or modify the options for the specified item. + + If no options are given, a dict with options/values for the item + is returned. If option is specified then the value for that option + is returned. Otherwise, sets the options to the corresponding + values as given by kw.""" + if option is not None: + kw[option] = None + return _val_or_dict(self.tk, kw, self._w, "item", item) + + + def move(self, item, parent, index): + """Moves item to position index in parent's list of children. + + It is illegal to move an item under one of its descendants. If + index is less than or equal to zero, item is moved to the + beginning, if greater than or equal to the number of children, + it is moved to the end. If item was detached it is reattached.""" + self.tk.call(self._w, "move", item, parent, index) + + reattach = move # A sensible method name for reattaching detached items + + + def next(self, item): + """Returns the identifier of item's next sibling, or '' if item + is the last child of its parent.""" + return self.tk.call(self._w, "next", item) + + + def parent(self, item): + """Returns the ID of the parent of item, or '' if item is at the + top level of the hierarchy.""" + return self.tk.call(self._w, "parent", item) + + + def prev(self, item): + """Returns the identifier of item's previous sibling, or '' if + item is the first child of its parent.""" + return self.tk.call(self._w, "prev", item) + + + def see(self, item): + """Ensure that item is visible. + + Sets all of item's ancestors open option to True, and scrolls + the widget if necessary so that item is within the visible + portion of the tree.""" + self.tk.call(self._w, "see", item) + + + def selection(self): + """Returns the tuple of selected items.""" + return self.tk.splitlist(self.tk.call(self._w, "selection")) + + + def _selection(self, selop, items): + if len(items) == 1 and isinstance(items[0], (tuple, list)): + items = items[0] + + self.tk.call(self._w, "selection", selop, items) + + + def selection_set(self, *items): + """The specified items becomes the new selection.""" + self._selection("set", items) + + + def selection_add(self, *items): + """Add all of the specified items to the selection.""" + self._selection("add", items) + + + def selection_remove(self, *items): + """Remove all of the specified items from the selection.""" + self._selection("remove", items) + + + def selection_toggle(self, *items): + """Toggle the selection state of each specified item.""" + self._selection("toggle", items) + + + def set(self, item, column=None, value=None): + """Query or set the value of given item. + + With one argument, return a dictionary of column/value pairs + for the specified item. With two arguments, return the current + value of the specified column. With three arguments, set the + value of given column in given item to the specified value.""" + res = self.tk.call(self._w, "set", item, column, value) + if column is None and value is None: + return _splitdict(self.tk, res, + cut_minus=False, conv=_tclobj_to_py) + else: + return res + + + def tag_bind(self, tagname, sequence=None, callback=None): + """Bind a callback for the given event sequence to the tag tagname. + When an event is delivered to an item, the callbacks for each + of the item's tags option are called.""" + self._bind((self._w, "tag", "bind", tagname), sequence, callback, add=0) + + + def tag_configure(self, tagname, option=None, **kw): + """Query or modify the options for the specified tagname. + + If kw is not given, returns a dict of the option settings for tagname. + If option is specified, returns the value for that option for the + specified tagname. Otherwise, sets the options to the corresponding + values for the given tagname.""" + if option is not None: + kw[option] = None + return _val_or_dict(self.tk, kw, self._w, "tag", "configure", + tagname) + + + def tag_has(self, tagname, item=None): + """If item is specified, returns 1 or 0 depending on whether the + specified item has the given tagname. Otherwise, returns a list of + all items which have the specified tag. + + * Availability: Tk 8.6""" + if item is None: + return self.tk.splitlist( + self.tk.call(self._w, "tag", "has", tagname)) + else: + return self.tk.getboolean( + self.tk.call(self._w, "tag", "has", tagname, item)) + + +# Extensions + +class LabeledScale(Frame): + """A Ttk Scale widget with a Ttk Label widget indicating its + current value. + + The Ttk Scale can be accessed through instance.scale, and Ttk Label + can be accessed through instance.label""" + + def __init__(self, master=None, variable=None, from_=0, to=10, **kw): + """Construct a horizontal LabeledScale with parent master, a + variable to be associated with the Ttk Scale widget and its range. + If variable is not specified, a tkinter.IntVar is created. + + WIDGET-SPECIFIC OPTIONS + + compound: 'top' or 'bottom' + Specifies how to display the label relative to the scale. + Defaults to 'top'. + """ + self._label_top = kw.pop('compound', 'top') == 'top' + + Frame.__init__(self, master, **kw) + self._variable = variable or tkinter.IntVar(master) + self._variable.set(from_) + self._last_valid = from_ + + self.label = Label(self) + self.scale = Scale(self, variable=self._variable, from_=from_, to=to) + self.scale.bind('<>', self._adjust) + + # position scale and label according to the compound option + scale_side = 'bottom' if self._label_top else 'top' + label_side = 'top' if scale_side == 'bottom' else 'bottom' + self.scale.pack(side=scale_side, fill='x') + # Dummy required to make frame correct height + dummy = Label(self) + dummy.pack(side=label_side) + dummy.lower() + self.label.place(anchor='n' if label_side == 'top' else 's') + + # update the label as scale or variable changes + self.__tracecb = self._variable.trace_add('write', self._adjust) + self.bind('', self._adjust) + self.bind('', self._adjust) + + + def destroy(self): + """Destroy this widget and possibly its associated variable.""" + try: + self._variable.trace_remove('write', self.__tracecb) + except AttributeError: + pass + else: + del self._variable + super().destroy() + self.label = None + self.scale = None + + + def _adjust(self, *args): + """Adjust the label position according to the scale.""" + def adjust_label(): + self.update_idletasks() # "force" scale redraw + + x, y = self.scale.coords() + if self._label_top: + y = self.scale.winfo_y() - self.label.winfo_reqheight() + else: + y = self.scale.winfo_reqheight() + self.label.winfo_reqheight() + + self.label.place_configure(x=x, y=y) + + from_ = _to_number(self.scale['from']) + to = _to_number(self.scale['to']) + if to < from_: + from_, to = to, from_ + newval = self._variable.get() + if not from_ <= newval <= to: + # value outside range, set value back to the last valid one + self.value = self._last_valid + return + + self._last_valid = newval + self.label['text'] = newval + self.after_idle(adjust_label) + + @property + def value(self): + """Return current scale value.""" + return self._variable.get() + + @value.setter + def value(self, val): + """Set new scale value.""" + self._variable.set(val) + + +class OptionMenu(Menubutton): + """Themed OptionMenu, based after tkinter's OptionMenu, which allows + the user to select a value from a menu.""" + + def __init__(self, master, variable, default=None, *values, **kwargs): + """Construct a themed OptionMenu widget with master as the parent, + the resource textvariable set to variable, the initially selected + value specified by the default parameter, the menu values given by + *values and additional keywords. + + WIDGET-SPECIFIC OPTIONS + + style: stylename + Menubutton style. + direction: 'above', 'below', 'left', 'right', or 'flush' + Menubutton direction. + command: callback + A callback that will be invoked after selecting an item. + """ + kw = {'textvariable': variable, 'style': kwargs.pop('style', None), + 'direction': kwargs.pop('direction', None)} + Menubutton.__init__(self, master, **kw) + self['menu'] = tkinter.Menu(self, tearoff=False) + + self._variable = variable + self._callback = kwargs.pop('command', None) + if kwargs: + raise tkinter.TclError('unknown option -%s' % ( + next(iter(kwargs.keys())))) + + self.set_menu(default, *values) + + + def __getitem__(self, item): + if item == 'menu': + return self.nametowidget(Menubutton.__getitem__(self, item)) + + return Menubutton.__getitem__(self, item) + + + def set_menu(self, default=None, *values): + """Build a new menu of radiobuttons with *values and optionally + a default value.""" + menu = self['menu'] + menu.delete(0, 'end') + for val in values: + menu.add_radiobutton(label=val, + command=( + None if self._callback is None + else lambda val=val: self._callback(val) + ), + variable=self._variable) + + if default: + self._variable.set(default) + + + def destroy(self): + """Destroy this widget and its associated variable.""" + try: + del self._variable + except AttributeError: + pass + super().destroy() diff --git a/Lib/typing.py b/Lib/typing.py index 086d0f3f95..b64a6b6714 100644 --- a/Lib/typing.py +++ b/Lib/typing.py @@ -1,35 +1,46 @@ """ -The typing module: Support for gradual typing as defined by PEP 484. - -At large scale, the structure of the module is following: -* Imports and exports, all public names should be explicitly added to __all__. -* Internal helper functions: these should never be used in code outside this module. -* _SpecialForm and its instances (special forms): - Any, NoReturn, ClassVar, Union, Optional, Concatenate -* Classes whose instances can be type arguments in addition to types: - ForwardRef, TypeVar and ParamSpec -* The core of internal generics API: _GenericAlias and _VariadicGenericAlias, the latter is - currently only used by Tuple and Callable. All subscripted types like X[int], Union[int, str], - etc., are instances of either of these classes. -* The public counterpart of the generics API consists of two classes: Generic and Protocol. -* Public helper functions: get_type_hints, overload, cast, no_type_check, - no_type_check_decorator. -* Generic aliases for collections.abc ABCs and few additional protocols. +The typing module: Support for gradual typing as defined by PEP 484 and subsequent PEPs. + +Among other things, the module includes the following: +* Generic, Protocol, and internal machinery to support generic aliases. + All subscripted types like X[int], Union[int, str] are generic aliases. +* Various "special forms" that have unique meanings in type annotations: + NoReturn, Never, ClassVar, Self, Concatenate, Unpack, and others. +* Classes whose instances can be type arguments to generic classes and functions: + TypeVar, ParamSpec, TypeVarTuple. +* Public helper functions: get_type_hints, overload, cast, final, and others. +* Several protocols to support duck-typing: + SupportsFloat, SupportsIndex, SupportsAbs, and others. * Special types: NewType, NamedTuple, TypedDict. -* Wrapper submodules for re and io related types. +* Deprecated aliases for builtin types and collections.abc ABCs. + +Any name not present in __all__ is an implementation detail +that may be changed without notice. Use at your own risk! """ from abc import abstractmethod, ABCMeta import collections +from collections import defaultdict import collections.abc -import contextlib +import copyreg import functools import operator -import re as stdlib_re # Avoid confusion with the re we export. import sys import types from types import WrapperDescriptorType, MethodWrapperType, MethodDescriptorType, GenericAlias +from _typing import ( + _idfunc, + TypeVar, + ParamSpec, + TypeVarTuple, + ParamSpecArgs, + ParamSpecKwargs, + TypeAliasType, + Generic, + NoDefault, +) + # Please keep __all__ alphabetized within each category. __all__ = [ # Super-special typing primitives. @@ -48,6 +59,7 @@ 'Tuple', 'Type', 'TypeVar', + 'TypeVarTuple', 'Union', # ABCs (from collections.abc). @@ -109,30 +121,45 @@ # One-off things. 'AnyStr', + 'assert_type', + 'assert_never', 'cast', + 'clear_overloads', + 'dataclass_transform', 'final', 'get_args', 'get_origin', + 'get_overloads', + 'get_protocol_members', 'get_type_hints', + 'is_protocol', 'is_typeddict', + 'LiteralString', + 'Never', 'NewType', 'no_type_check', 'no_type_check_decorator', + 'NoDefault', 'NoReturn', + 'NotRequired', 'overload', + 'override', 'ParamSpecArgs', 'ParamSpecKwargs', + 'ReadOnly', + 'Required', + 'reveal_type', 'runtime_checkable', + 'Self', 'Text', 'TYPE_CHECKING', 'TypeAlias', 'TypeGuard', + 'TypeIs', + 'TypeAliasType', + 'Unpack', ] -# The pseudo-submodules 're' and 'io' are part of the public -# namespace, but excluded from __all__ because they might stomp on -# legitimate imports of those modules. - def _type_convert(arg, module=None, *, allow_special_forms=False): """For converting None to type(None), and strings to ForwardRef.""" @@ -149,7 +176,7 @@ def _type_check(arg, msg, is_argument=True, module=None, *, allow_special_forms= As a special case, accept None and return type(None) instead. Also wrap strings into ForwardRef instances. Consider several corner cases, for example plain special forms like Union are not valid, while Union[int, str] is OK, etc. - The msg argument is a human-readable error message, e.g:: + The msg argument is a human-readable error message, e.g.:: "Union[arg, ...]: arg should be a type." @@ -165,14 +192,13 @@ def _type_check(arg, msg, is_argument=True, module=None, *, allow_special_forms= if (isinstance(arg, _GenericAlias) and arg.__origin__ in invalid_generic_forms): raise TypeError(f"{arg} is not valid as type argument") - if arg in (Any, NoReturn, Final, TypeAlias): + if arg in (Any, LiteralString, NoReturn, Never, Self, TypeAlias): + return arg + if allow_special_forms and arg in (ClassVar, Final): return arg if isinstance(arg, _SpecialForm) or arg in (Generic, Protocol): raise TypeError(f"Plain {arg} is not valid as type argument") - if isinstance(arg, (type, TypeVar, ForwardRef, types.UnionType, ParamSpec, - ParamSpecArgs, ParamSpecKwargs)): - return arg - if not callable(arg): + if type(arg) is tuple: raise TypeError(f"{msg} Got {arg!r:.100}.") return arg @@ -182,6 +208,28 @@ def _is_param_expr(arg): (tuple, list, ParamSpec, _ConcatenateGenericAlias)) +def _should_unflatten_callable_args(typ, args): + """Internal helper for munging collections.abc.Callable's __args__. + + The canonical representation for a Callable's __args__ flattens the + argument types, see https://github.com/python/cpython/issues/86361. + + For example:: + + >>> import collections.abc + >>> P = ParamSpec('P') + >>> collections.abc.Callable[[int, int], str].__args__ == (int, int, str) + True + + As a result, if we need to reconstruct the Callable from its __args__, + we need to unflatten it. + """ + return ( + typ.__origin__ is collections.abc.Callable + and not (len(args) == 2 and _is_param_expr(args[0])) + ) + + def _type_repr(obj): """Return the repr() of an object, special-casing types (internal helper). @@ -190,99 +238,158 @@ def _type_repr(obj): typically enough to uniquely identify a type. For everything else, we fall back on repr(obj). """ - if isinstance(obj, types.GenericAlias): - return repr(obj) + # When changing this function, don't forget about + # `_collections_abc._type_repr`, which does the same thing + # and must be consistent with this one. if isinstance(obj, type): if obj.__module__ == 'builtins': return obj.__qualname__ return f'{obj.__module__}.{obj.__qualname__}' if obj is ...: - return('...') + return '...' if isinstance(obj, types.FunctionType): return obj.__name__ + if isinstance(obj, tuple): + # Special case for `repr` of types with `ParamSpec`: + return '[' + ', '.join(_type_repr(t) for t in obj) + ']' return repr(obj) -def _collect_type_vars(types_, typevar_types=None): - """Collect all type variable contained - in types in order of first appearance (lexicographic order). For example:: +def _collect_type_parameters(args, *, enforce_default_ordering: bool = True): + """Collect all type parameters in args + in order of first appearance (lexicographic order). + + For example:: - _collect_type_vars((T, List[S, T])) == (T, S) + >>> P = ParamSpec('P') + >>> T = TypeVar('T') """ - if typevar_types is None: - typevar_types = TypeVar - tvars = [] - for t in types_: - if isinstance(t, typevar_types) and t not in tvars: - tvars.append(t) - if isinstance(t, (_GenericAlias, GenericAlias, types.UnionType)): - tvars.extend([t for t in t.__parameters__ if t not in tvars]) - return tuple(tvars) + # required type parameter cannot appear after parameter with default + default_encountered = False + # or after TypeVarTuple + type_var_tuple_encountered = False + parameters = [] + for t in args: + if isinstance(t, type): + # We don't want __parameters__ descriptor of a bare Python class. + pass + elif isinstance(t, tuple): + # `t` might be a tuple, when `ParamSpec` is substituted with + # `[T, int]`, or `[int, *Ts]`, etc. + for x in t: + for collected in _collect_type_parameters([x]): + if collected not in parameters: + parameters.append(collected) + elif hasattr(t, '__typing_subst__'): + if t not in parameters: + if enforce_default_ordering: + if type_var_tuple_encountered and t.has_default(): + raise TypeError('Type parameter with a default' + ' follows TypeVarTuple') + + if t.has_default(): + default_encountered = True + elif default_encountered: + raise TypeError(f'Type parameter {t!r} without a default' + ' follows type parameter with a default') + + parameters.append(t) + else: + if _is_unpacked_typevartuple(t): + type_var_tuple_encountered = True + for x in getattr(t, '__parameters__', ()): + if x not in parameters: + parameters.append(x) + return tuple(parameters) -def _check_generic(cls, parameters, elen): +def _check_generic_specialization(cls, arguments): """Check correct count for parameters of a generic cls (internal helper). + This gives a nice error message in case of count mismatch. """ - if not elen: + expected_len = len(cls.__parameters__) + if not expected_len: raise TypeError(f"{cls} is not a generic class") - alen = len(parameters) - if alen != elen: - raise TypeError(f"Too {'many' if alen > elen else 'few'} arguments for {cls};" - f" actual {alen}, expected {elen}") - -def _prepare_paramspec_params(cls, params): - """Prepares the parameters for a Generic containing ParamSpec - variables (internal helper). - """ - # Special case where Z[[int, str, bool]] == Z[int, str, bool] in PEP 612. - if (len(cls.__parameters__) == 1 - and params and not _is_param_expr(params[0])): - assert isinstance(cls.__parameters__[0], ParamSpec) - return (params,) - else: - _check_generic(cls, params, len(cls.__parameters__)) - _params = [] - # Convert lists to tuples to help other libraries cache the results. - for p, tvar in zip(params, cls.__parameters__): - if isinstance(tvar, ParamSpec) and isinstance(p, list): - p = tuple(p) - _params.append(p) - return tuple(_params) - -def _deduplicate(params): - # Weed out strict duplicates, preserving the first of each occurrence. - all_params = set(params) - if len(all_params) < len(params): - new_params = [] - for t in params: - if t in all_params: - new_params.append(t) - all_params.remove(t) - params = new_params - assert not all_params, all_params - return params + actual_len = len(arguments) + if actual_len != expected_len: + # deal with defaults + if actual_len < expected_len: + # If the parameter at index `actual_len` in the parameters list + # has a default, then all parameters after it must also have + # one, because we validated as much in _collect_type_parameters(). + # That means that no error needs to be raised here, despite + # the number of arguments being passed not matching the number + # of parameters: all parameters that aren't explicitly + # specialized in this call are parameters with default values. + if cls.__parameters__[actual_len].has_default(): + return + + expected_len -= sum(p.has_default() for p in cls.__parameters__) + expect_val = f"at least {expected_len}" + else: + expect_val = expected_len + + raise TypeError(f"Too {'many' if actual_len > expected_len else 'few'} arguments" + f" for {cls}; actual {actual_len}, expected {expect_val}") +def _unpack_args(*args): + newargs = [] + for arg in args: + subargs = getattr(arg, '__typing_unpacked_tuple_args__', None) + if subargs is not None and not (subargs and subargs[-1] is ...): + newargs.extend(subargs) + else: + newargs.append(arg) + return newargs + +def _deduplicate(params, *, unhashable_fallback=False): + # Weed out strict duplicates, preserving the first of each occurrence. + try: + return dict.fromkeys(params) + except TypeError: + if not unhashable_fallback: + raise + # Happens for cases like `Annotated[dict, {'x': IntValidator()}]` + return _deduplicate_unhashable(params) + +def _deduplicate_unhashable(unhashable_params): + new_unhashable = [] + for t in unhashable_params: + if t not in new_unhashable: + new_unhashable.append(t) + return new_unhashable + +def _compare_args_orderless(first_args, second_args): + first_unhashable = _deduplicate_unhashable(first_args) + second_unhashable = _deduplicate_unhashable(second_args) + t = list(second_unhashable) + try: + for elem in first_unhashable: + t.remove(elem) + except ValueError: + return False + return not t + def _remove_dups_flatten(parameters): - """An internal helper for Union creation and substitution: flatten Unions - among parameters, then remove duplicates. + """Internal helper for Union creation and substitution. + + Flatten Unions among parameters, then remove duplicates. """ # Flatten out Union[Union[...], ...]. params = [] for p in parameters: if isinstance(p, (_UnionGenericAlias, types.UnionType)): params.extend(p.__args__) - elif isinstance(p, tuple) and len(p) > 0 and p[0] is Union: - params.extend(p[1:]) else: params.append(p) - return tuple(_deduplicate(params)) + return tuple(_deduplicate(params, unhashable_fallback=True)) def _flatten_literal_params(parameters): - """An internal helper for Literal creation: flatten Literals among parameters""" + """Internal helper for Literal creation: flatten Literals among parameters.""" params = [] for p in parameters: if isinstance(p, _LiteralGenericAlias): @@ -293,20 +400,29 @@ def _flatten_literal_params(parameters): _cleanups = [] +_caches = {} def _tp_cache(func=None, /, *, typed=False): - """Internal wrapper caching __getitem__ of generic types with a fallback to - original function for non-hashable arguments. + """Internal wrapper caching __getitem__ of generic types. + + For non-hashable arguments, the original function is used as a fallback. """ def decorator(func): - cached = functools.lru_cache(typed=typed)(func) - _cleanups.append(cached.cache_clear) + # The callback 'inner' references the newly created lru_cache + # indirectly by performing a lookup in the global '_caches' dictionary. + # This breaks a reference that can be problematic when combined with + # C API extensions that leak references to types. See GH-98253. + + cache = functools.lru_cache(typed=typed)(func) + _caches[func] = cache + _cleanups.append(cache.cache_clear) + del cache @functools.wraps(func) def inner(*args, **kwds): try: - return cached(*args, **kwds) + return _caches[func](*args, **kwds) except TypeError: pass # All real errors (not unhashable args) are raised below. return func(*args, **kwds) @@ -317,16 +433,61 @@ def inner(*args, **kwds): return decorator -def _eval_type(t, globalns, localns, recursive_guard=frozenset()): + +def _deprecation_warning_for_no_type_params_passed(funcname: str) -> None: + import warnings + + depr_message = ( + f"Failing to pass a value to the 'type_params' parameter " + f"of {funcname!r} is deprecated, as it leads to incorrect behaviour " + f"when calling {funcname} on a stringified annotation " + f"that references a PEP 695 type parameter. " + f"It will be disallowed in Python 3.15." + ) + warnings.warn(depr_message, category=DeprecationWarning, stacklevel=3) + + +class _Sentinel: + __slots__ = () + def __repr__(self): + return '' + + +_sentinel = _Sentinel() + + +def _eval_type(t, globalns, localns, type_params=_sentinel, *, recursive_guard=frozenset()): """Evaluate all forward references in the given type t. + For use of globalns and localns see the docstring for get_type_hints(). recursive_guard is used to prevent infinite recursion with a recursive ForwardRef. """ + if type_params is _sentinel: + _deprecation_warning_for_no_type_params_passed("typing._eval_type") + type_params = () if isinstance(t, ForwardRef): - return t._evaluate(globalns, localns, recursive_guard) + return t._evaluate(globalns, localns, type_params, recursive_guard=recursive_guard) if isinstance(t, (_GenericAlias, GenericAlias, types.UnionType)): - ev_args = tuple(_eval_type(a, globalns, localns, recursive_guard) for a in t.__args__) + if isinstance(t, GenericAlias): + args = tuple( + ForwardRef(arg) if isinstance(arg, str) else arg + for arg in t.__args__ + ) + is_unpacked = t.__unpacked__ + if _should_unflatten_callable_args(t, args): + t = t.__origin__[(args[:-1], args[-1])] + else: + t = t.__origin__[args] + if is_unpacked: + t = Unpack[t] + + ev_args = tuple( + _eval_type( + a, globalns, localns, type_params, recursive_guard=recursive_guard + ) + for a in t.__args__ + ) if ev_args == t.__args__: return t if isinstance(t, GenericAlias): @@ -339,28 +500,36 @@ def _eval_type(t, globalns, localns, recursive_guard=frozenset()): class _Final: - """Mixin to prohibit subclassing""" + """Mixin to prohibit subclassing.""" __slots__ = ('__weakref__',) - def __init_subclass__(self, /, *args, **kwds): + def __init_subclass__(cls, /, *args, **kwds): if '_root' not in kwds: raise TypeError("Cannot subclass special typing classes") -class _Immutable: - """Mixin to indicate that object should not be copied.""" - __slots__ = () - def __copy__(self): - return self +class _NotIterable: + """Mixin to prevent iteration, without being compatible with Iterable. + + That is, we could do:: + + def __iter__(self): raise TypeError() + + But this would make users of this mixin duck type-compatible with + collections.abc.Iterable - isinstance(foo, Iterable) would be True. - def __deepcopy__(self, memo): - return self + Luckily, we can instead prevent iteration by setting __iter__ to None, which + is treated specially. + """ + + __slots__ = () + __iter__ = None # Internal indicator of special typing constructs. # See __doc__ instance attribute for specific docs. -class _SpecialForm(_Final, _root=True): +class _SpecialForm(_Final, _NotIterable, _root=True): __slots__ = ('_name', '__doc__', '_getitem') def __init__(self, getitem): @@ -403,15 +572,26 @@ def __getitem__(self, parameters): return self._getitem(self, parameters) -class _LiteralSpecialForm(_SpecialForm, _root=True): +class _TypedCacheSpecialForm(_SpecialForm, _root=True): def __getitem__(self, parameters): if not isinstance(parameters, tuple): parameters = (parameters,) return self._getitem(self, *parameters) -@_SpecialForm -def Any(self, parameters): +class _AnyMeta(type): + def __instancecheck__(self, obj): + if self is Any: + raise TypeError("typing.Any cannot be used with isinstance()") + return super().__instancecheck__(obj) + + def __repr__(self): + if self is Any: + return "typing.Any" + return super().__repr__() # respect to subclasses + + +class Any(metaclass=_AnyMeta): """Special type indicating an unconstrained type. - Any is compatible with every type. @@ -420,43 +600,128 @@ def Any(self, parameters): Note that all the above statements are true from the point of view of static type checkers. At runtime, Any should not be used with instance - or class checks. + checks. """ - raise TypeError(f"{self} is not subscriptable") + + def __new__(cls, *args, **kwargs): + if cls is Any: + raise TypeError("Any cannot be instantiated") + return super().__new__(cls) + @_SpecialForm def NoReturn(self, parameters): """Special type indicating functions that never return. + + Example:: + + from typing import NoReturn + + def stop() -> NoReturn: + raise Exception('no way') + + NoReturn can also be used as a bottom type, a type that + has no values. Starting in Python 3.11, the Never type should + be used for this concept instead. Type checkers should treat the two + equivalently. + """ + raise TypeError(f"{self} is not subscriptable") + +# This is semantically identical to NoReturn, but it is implemented +# separately so that type checkers can distinguish between the two +# if they want. +@_SpecialForm +def Never(self, parameters): + """The bottom type, a type that has no members. + + This can be used to define a function that should never be + called, or a function that never returns:: + + from typing import Never + + def never_call_me(arg: Never) -> None: + pass + + def int_or_str(arg: int | str) -> None: + never_call_me(arg) # type checker error + match arg: + case int(): + print("It's an int") + case str(): + print("It's a str") + case _: + never_call_me(arg) # OK, arg is of type Never + """ + raise TypeError(f"{self} is not subscriptable") + + +@_SpecialForm +def Self(self, parameters): + """Used to spell the type of "self" in classes. + + Example:: + + from typing import Self + + class Foo: + def return_self(self) -> Self: + ... + return self + + This is especially useful for: + - classmethods that are used as alternative constructors + - annotating an `__enter__` method which returns self + """ + raise TypeError(f"{self} is not subscriptable") + + +@_SpecialForm +def LiteralString(self, parameters): + """Represents an arbitrary literal string. + Example:: - from typing import NoReturn + from typing import LiteralString + + def run_query(sql: LiteralString) -> None: + ... - def stop() -> NoReturn: - raise Exception('no way') + def caller(arbitrary_string: str, literal_string: LiteralString) -> None: + run_query("SELECT * FROM students") # OK + run_query(literal_string) # OK + run_query("SELECT * FROM " + literal_string) # OK + run_query(arbitrary_string) # type checker error + run_query( # type checker error + f"SELECT * FROM students WHERE name = {arbitrary_string}" + ) - This type is invalid in other positions, e.g., ``List[NoReturn]`` - will fail in static type checkers. + Only string literals and other LiteralStrings are compatible + with LiteralString. This provides a tool to help prevent + security issues such as SQL injection. """ raise TypeError(f"{self} is not subscriptable") + @_SpecialForm def ClassVar(self, parameters): """Special type construct to mark class variables. An annotation wrapped in ClassVar indicates that a given attribute is intended to be used as a class variable and - should not be set on instances of that class. Usage:: + should not be set on instances of that class. + + Usage:: - class Starship: - stats: ClassVar[Dict[str, int]] = {} # class variable - damage: int = 10 # instance variable + class Starship: + stats: ClassVar[dict[str, int]] = {} # class variable + damage: int = 10 # instance variable ClassVar accepts only types and cannot be further subscribed. Note that ClassVar is not a class itself, and should not be used with isinstance() or issubclass(). """ - item = _type_check(parameters, f'{self} accepts only single type.') + item = _type_check(parameters, f'{self} accepts only single type.', allow_special_forms=True) return _GenericAlias(self, (item,)) @_SpecialForm @@ -464,45 +729,50 @@ def Final(self, parameters): """Special typing construct to indicate final names to type checkers. A final name cannot be re-assigned or overridden in a subclass. - For example: - MAX_SIZE: Final = 9000 - MAX_SIZE += 1 # Error reported by type checker + For example:: + + MAX_SIZE: Final = 9000 + MAX_SIZE += 1 # Error reported by type checker - class Connection: - TIMEOUT: Final[int] = 10 + class Connection: + TIMEOUT: Final[int] = 10 - class FastConnector(Connection): - TIMEOUT = 1 # Error reported by type checker + class FastConnector(Connection): + TIMEOUT = 1 # Error reported by type checker There is no runtime checking of these properties. """ - item = _type_check(parameters, f'{self} accepts only single type.') + item = _type_check(parameters, f'{self} accepts only single type.', allow_special_forms=True) return _GenericAlias(self, (item,)) @_SpecialForm def Union(self, parameters): """Union type; Union[X, Y] means either X or Y. - To define a union, use e.g. Union[int, str]. Details: + On Python 3.10 and higher, the | operator + can also be used to denote unions; + X | Y means the same thing to the type checker as Union[X, Y]. + + To define a union, use e.g. Union[int, str]. Details: - The arguments must be types and there must be at least one. - None as an argument is a special case and is replaced by type(None). - Unions of unions are flattened, e.g.:: - Union[Union[int, str], float] == Union[int, str, float] + assert Union[Union[int, str], float] == Union[int, str, float] - Unions of a single argument vanish, e.g.:: - Union[int] == int # The constructor actually returns int + assert Union[int] == int # The constructor actually returns int - Redundant arguments are skipped, e.g.:: - Union[int, str, int] == Union[int, str] + assert Union[int, str, int] == Union[int, str] - When comparing unions, the argument order is ignored, e.g.:: - Union[int, str] == Union[str, int] + assert Union[int, str] == Union[str, int] - You cannot subclass or instantiate a union. - You can use Optional[X] as a shorthand for Union[X, None]. @@ -520,33 +790,39 @@ def Union(self, parameters): return _UnionGenericAlias(self, parameters, name="Optional") return _UnionGenericAlias(self, parameters) -@_SpecialForm -def Optional(self, parameters): - """Optional type. +def _make_union(left, right): + """Used from the C implementation of TypeVar. - Optional[X] is equivalent to Union[X, None]. + TypeVar.__or__ calls this instead of returning types.UnionType + because we want to allow unions between TypeVars and strings + (forward references). """ + return Union[left, right] + +@_SpecialForm +def Optional(self, parameters): + """Optional[X] is equivalent to Union[X, None].""" arg = _type_check(parameters, f"{self} requires a single type.") return Union[arg, type(None)] -@_LiteralSpecialForm +@_TypedCacheSpecialForm @_tp_cache(typed=True) def Literal(self, *parameters): """Special typing form to define literal types (a.k.a. value types). This form can be used to indicate to type checkers that the corresponding variable or function parameter has a value equivalent to the provided - literal (or one of several literals): + literal (or one of several literals):: - def validate_simple(data: Any) -> Literal[True]: # always returns True - ... + def validate_simple(data: Any) -> Literal[True]: # always returns True + ... - MODE = Literal['r', 'rb', 'w', 'wb'] - def open_helper(file: str, mode: MODE) -> str: - ... + MODE = Literal['r', 'rb', 'w', 'wb'] + def open_helper(file: str, mode: MODE) -> str: + ... - open_helper('/some/path', 'r') # Passes type check - open_helper('/other/path', 'typo') # Error in type checker + open_helper('/some/path', 'r') # Passes type check + open_helper('/other/path', 'typo') # Error in type checker Literal[...] cannot be subclassed. At runtime, an arbitrary value is allowed as type argument to Literal[...], but type checkers may @@ -566,7 +842,9 @@ def open_helper(file: str, mode: MODE) -> str: @_SpecialForm def TypeAlias(self, parameters): - """Special marker indicating that an assignment should + """Special form for marking type aliases. + + Use TypeAlias to indicate that an assignment should be recognized as a proper type alias definition by type checkers. @@ -581,13 +859,15 @@ def TypeAlias(self, parameters): @_SpecialForm def Concatenate(self, parameters): - """Used in conjunction with ``ParamSpec`` and ``Callable`` to represent a - higher order function which adds, removes or transforms parameters of a - callable. + """Special form for annotating higher-order functions. + + ``Concatenate`` can be used in conjunction with ``ParamSpec`` and + ``Callable`` to represent a higher-order function which adds, removes or + transforms the parameters of a callable. For example:: - Callable[Concatenate[int, P], int] + Callable[Concatenate[int, P], int] See PEP 612 for detailed information. """ @@ -595,56 +875,62 @@ def Concatenate(self, parameters): raise TypeError("Cannot take a Concatenate of no types.") if not isinstance(parameters, tuple): parameters = (parameters,) - if not isinstance(parameters[-1], ParamSpec): + if not (parameters[-1] is ... or isinstance(parameters[-1], ParamSpec)): raise TypeError("The last parameter to Concatenate should be a " - "ParamSpec variable.") + "ParamSpec variable or ellipsis.") msg = "Concatenate[arg, ...]: each arg must be a type." parameters = (*(_type_check(p, msg) for p in parameters[:-1]), parameters[-1]) - return _ConcatenateGenericAlias(self, parameters, - _typevar_types=(TypeVar, ParamSpec), - _paramspec_tvars=True) + return _ConcatenateGenericAlias(self, parameters) @_SpecialForm def TypeGuard(self, parameters): - """Special typing form used to annotate the return type of a user-defined - type guard function. ``TypeGuard`` only accepts a single type argument. + """Special typing construct for marking user-defined type predicate functions. + + ``TypeGuard`` can be used to annotate the return type of a user-defined + type predicate function. ``TypeGuard`` only accepts a single type argument. At runtime, functions marked this way should return a boolean. ``TypeGuard`` aims to benefit *type narrowing* -- a technique used by static type checkers to determine a more precise type of an expression within a program's code flow. Usually type narrowing is done by analyzing conditional code flow and applying the narrowing to a block of code. The - conditional expression here is sometimes referred to as a "type guard". + conditional expression here is sometimes referred to as a "type predicate". Sometimes it would be convenient to use a user-defined boolean function - as a type guard. Such a function should use ``TypeGuard[...]`` as its - return type to alert static type checkers to this intention. + as a type predicate. Such a function should use ``TypeGuard[...]`` or + ``TypeIs[...]`` as its return type to alert static type checkers to + this intention. ``TypeGuard`` should be used over ``TypeIs`` when narrowing + from an incompatible type (e.g., ``list[object]`` to ``list[int]``) or when + the function does not return ``True`` for all instances of the narrowed type. - Using ``-> TypeGuard`` tells the static type checker that for a given - function: + Using ``-> TypeGuard[NarrowedType]`` tells the static type checker that + for a given function: 1. The return value is a boolean. 2. If the return value is ``True``, the type of its argument - is the type inside ``TypeGuard``. + is ``NarrowedType``. - For example:: + For example:: + + def is_str_list(val: list[object]) -> TypeGuard[list[str]]: + '''Determines whether all objects in the list are strings''' + return all(isinstance(x, str) for x in val) - def is_str(val: Union[str, float]): - # "isinstance" type guard - if isinstance(val, str): - # Type of ``val`` is narrowed to ``str`` - ... - else: - # Else, type of ``val`` is narrowed to ``float``. - ... + def func1(val: list[object]): + if is_str_list(val): + # Type of ``val`` is narrowed to ``list[str]``. + print(" ".join(val)) + else: + # Type of ``val`` remains as ``list[object]``. + print("Not a list of strings!") Strict type narrowing is not enforced -- ``TypeB`` need not be a narrower form of ``TypeA`` (it can even be a wider form) and this may lead to type-unsafe results. The main reason is to allow for things like - narrowing ``List[object]`` to ``List[str]`` even though the latter is not - a subtype of the former, since ``List`` is invariant. The responsibility of - writing type-safe type guards is left to the user. + narrowing ``list[object]`` to ``list[str]`` even though the latter is not + a subtype of the former, since ``list`` is invariant. The responsibility of + writing type-safe type predicates is left to the user. ``TypeGuard`` also works with type variables. For more information, see PEP 647 (User-Defined Type Guards). @@ -653,6 +939,75 @@ def is_str(val: Union[str, float]): return _GenericAlias(self, (item,)) +@_SpecialForm +def TypeIs(self, parameters): + """Special typing construct for marking user-defined type predicate functions. + + ``TypeIs`` can be used to annotate the return type of a user-defined + type predicate function. ``TypeIs`` only accepts a single type argument. + At runtime, functions marked this way should return a boolean and accept + at least one argument. + + ``TypeIs`` aims to benefit *type narrowing* -- a technique used by static + type checkers to determine a more precise type of an expression within a + program's code flow. Usually type narrowing is done by analyzing + conditional code flow and applying the narrowing to a block of code. The + conditional expression here is sometimes referred to as a "type predicate". + + Sometimes it would be convenient to use a user-defined boolean function + as a type predicate. Such a function should use ``TypeIs[...]`` or + ``TypeGuard[...]`` as its return type to alert static type checkers to + this intention. ``TypeIs`` usually has more intuitive behavior than + ``TypeGuard``, but it cannot be used when the input and output types + are incompatible (e.g., ``list[object]`` to ``list[int]``) or when the + function does not return ``True`` for all instances of the narrowed type. + + Using ``-> TypeIs[NarrowedType]`` tells the static type checker that for + a given function: + + 1. The return value is a boolean. + 2. If the return value is ``True``, the type of its argument + is the intersection of the argument's original type and + ``NarrowedType``. + 3. If the return value is ``False``, the type of its argument + is narrowed to exclude ``NarrowedType``. + + For example:: + + from typing import assert_type, final, TypeIs + + class Parent: pass + class Child(Parent): pass + @final + class Unrelated: pass + + def is_parent(val: object) -> TypeIs[Parent]: + return isinstance(val, Parent) + + def run(arg: Child | Unrelated): + if is_parent(arg): + # Type of ``arg`` is narrowed to the intersection + # of ``Parent`` and ``Child``, which is equivalent to + # ``Child``. + assert_type(arg, Child) + else: + # Type of ``arg`` is narrowed to exclude ``Parent``, + # so only ``Unrelated`` is left. + assert_type(arg, Unrelated) + + The type inside ``TypeIs`` must be consistent with the type of the + function's argument; if it is not, static type checkers will raise + an error. An incorrectly written ``TypeIs`` function can lead to + unsound behavior in the type system; it is the user's responsibility + to write such functions in a type-safe manner. + + ``TypeIs`` also works with type variables. For more information, see + PEP 742 (Narrowing types with ``TypeIs``). + """ + item = _type_check(parameters, f'{self} accepts only single type.') + return _GenericAlias(self, (item,)) + + class ForwardRef(_Final, _root=True): """Internal wrapper to hold a forward reference.""" @@ -664,10 +1019,19 @@ class ForwardRef(_Final, _root=True): def __init__(self, arg, is_argument=True, module=None, *, is_class=False): if not isinstance(arg, str): raise TypeError(f"Forward reference must be a string -- got {arg!r}") + + # If we do `def f(*args: *Ts)`, then we'll have `arg = '*Ts'`. + # Unfortunately, this isn't a valid expression on its own, so we + # do the unpacking manually. + if arg.startswith('*'): + arg_to_compile = f'({arg},)[0]' # E.g. (*Ts,)[0] or (*tuple[int, int],)[0] + else: + arg_to_compile = arg try: - code = compile(arg, '', 'eval') + code = compile(arg_to_compile, '', 'eval') except SyntaxError: raise SyntaxError(f"Forward reference must be an expression -- got {arg!r}") + self.__forward_arg__ = arg self.__forward_code__ = code self.__forward_evaluated__ = False @@ -676,7 +1040,10 @@ def __init__(self, arg, is_argument=True, module=None, *, is_class=False): self.__forward_is_class__ = is_class self.__forward_module__ = module - def _evaluate(self, globalns, localns, recursive_guard): + def _evaluate(self, globalns, localns, type_params=_sentinel, *, recursive_guard): + if type_params is _sentinel: + _deprecation_warning_for_no_type_params_passed("typing.ForwardRef._evaluate") + type_params = () if self.__forward_arg__ in recursive_guard: return self if not self.__forward_evaluated__ or localns is not globalns: @@ -690,6 +1057,22 @@ def _evaluate(self, globalns, localns, recursive_guard): globalns = getattr( sys.modules.get(self.__forward_module__, None), '__dict__', globalns ) + + # type parameters require some special handling, + # as they exist in their own scope + # but `eval()` does not have a dedicated parameter for that scope. + # For classes, names in type parameter scopes should override + # names in the global scope (which here are called `localns`!), + # but should in turn be overridden by names in the class scope + # (which here are called `globalns`!) + if type_params: + globalns, localns = dict(globalns), dict(localns) + for param in type_params: + param_name = param.__name__ + if not self.__forward_is_class__ or param_name not in globalns: + globalns[param_name] = param + localns.pop(param_name, None) + type_ = _type_check( eval(self.__forward_code__, globalns, localns), "Forward references must evaluate to types.", @@ -697,7 +1080,11 @@ def _evaluate(self, globalns, localns, recursive_guard): allow_special_forms=self.__forward_is_class__, ) self.__forward_value__ = _eval_type( - type_, globalns, localns, recursive_guard | {self.__forward_arg__} + type_, + globalns, + localns, + type_params, + recursive_guard=(recursive_guard | {self.__forward_arg__}), ) self.__forward_evaluated__ = True return self.__forward_value__ @@ -714,236 +1101,205 @@ def __eq__(self, other): def __hash__(self): return hash((self.__forward_arg__, self.__forward_module__)) - def __repr__(self): - return f'ForwardRef({self.__forward_arg__!r})' - -class _TypeVarLike: - """Mixin for TypeVar-like types (TypeVar and ParamSpec).""" - def __init__(self, bound, covariant, contravariant): - """Used to setup TypeVars and ParamSpec's bound, covariant and - contravariant attributes. - """ - if covariant and contravariant: - raise ValueError("Bivariant types are not supported.") - self.__covariant__ = bool(covariant) - self.__contravariant__ = bool(contravariant) - if bound: - self.__bound__ = _type_check(bound, "Bound must be a type.") - else: - self.__bound__ = None - - def __or__(self, right): - return Union[self, right] + def __or__(self, other): + return Union[self, other] - def __ror__(self, left): - return Union[left, self] + def __ror__(self, other): + return Union[other, self] def __repr__(self): - if self.__covariant__: - prefix = '+' - elif self.__contravariant__: - prefix = '-' + if self.__forward_module__ is None: + module_repr = '' else: - prefix = '~' - return prefix + self.__name__ - - def __reduce__(self): - return self.__name__ - - -class TypeVar( _Final, _Immutable, _TypeVarLike, _root=True): - """Type variable. - - Usage:: - - T = TypeVar('T') # Can be anything - A = TypeVar('A', str, bytes) # Must be str or bytes - - Type variables exist primarily for the benefit of static type - checkers. They serve as the parameters for generic types as well - as for generic function definitions. See class Generic for more - information on generic types. Generic functions work as follows: - - def repeat(x: T, n: int) -> List[T]: - '''Return a list containing n references to x.''' - return [x]*n - - def longest(x: A, y: A) -> A: - '''Return the longest of two strings.''' - return x if len(x) >= len(y) else y - - The latter example's signature is essentially the overloading - of (str, str) -> str and (bytes, bytes) -> bytes. Also note - that if the arguments are instances of some subclass of str, - the return type is still plain str. - - At runtime, isinstance(x, T) and issubclass(C, T) will raise TypeError. - - Type variables defined with covariant=True or contravariant=True - can be used to declare covariant or contravariant generic types. - See PEP 484 for more details. By default generic types are invariant - in all type variables. - - Type variables can be introspected. e.g.: - - T.__name__ == 'T' - T.__constraints__ == () - T.__covariant__ == False - T.__contravariant__ = False - A.__constraints__ == (str, bytes) - - Note that only type variables defined in global scope can be pickled. - """ - - __slots__ = ('__name__', '__bound__', '__constraints__', - '__covariant__', '__contravariant__', '__dict__') - - def __init__(self, name, *constraints, bound=None, - covariant=False, contravariant=False): - self.__name__ = name - super().__init__(bound, covariant, contravariant) - if constraints and bound is not None: - raise TypeError("Constraints cannot be combined with bound=...") - if constraints and len(constraints) == 1: - raise TypeError("A single constraint is not allowed") - msg = "TypeVar(name, constraint, ...): constraints must be types." - self.__constraints__ = tuple(_type_check(t, msg) for t in constraints) - try: - def_mod = sys._getframe(1).f_globals.get('__name__', '__main__') # for pickling - except (AttributeError, ValueError): - def_mod = None - if def_mod != 'typing': - self.__module__ = def_mod + module_repr = f', module={self.__forward_module__!r}' + return f'ForwardRef({self.__forward_arg__!r}{module_repr})' -class ParamSpecArgs(_Final, _Immutable, _root=True): - """The args for a ParamSpec object. +def _is_unpacked_typevartuple(x: Any) -> bool: + return ((not isinstance(x, type)) and + getattr(x, '__typing_is_unpacked_typevartuple__', False)) - Given a ParamSpec object P, P.args is an instance of ParamSpecArgs. - ParamSpecArgs objects have a reference back to their ParamSpec: +def _is_typevar_like(x: Any) -> bool: + return isinstance(x, (TypeVar, ParamSpec)) or _is_unpacked_typevartuple(x) - P.args.__origin__ is P - This type is meant for runtime introspection and has no special meaning to - static type checkers. - """ - def __init__(self, origin): - self.__origin__ = origin +def _typevar_subst(self, arg): + msg = "Parameters to generic types must be types." + arg = _type_check(arg, msg, is_argument=True) + if ((isinstance(arg, _GenericAlias) and arg.__origin__ is Unpack) or + (isinstance(arg, GenericAlias) and getattr(arg, '__unpacked__', False))): + raise TypeError(f"{arg} is not valid as type argument") + return arg - def __repr__(self): - return f"{self.__origin__.__name__}.args" - def __eq__(self, other): - if not isinstance(other, ParamSpecArgs): - return NotImplemented - return self.__origin__ == other.__origin__ +def _typevartuple_prepare_subst(self, alias, args): + params = alias.__parameters__ + typevartuple_index = params.index(self) + for param in params[typevartuple_index + 1:]: + if isinstance(param, TypeVarTuple): + raise TypeError(f"More than one TypeVarTuple parameter in {alias}") + + alen = len(args) + plen = len(params) + left = typevartuple_index + right = plen - typevartuple_index - 1 + var_tuple_index = None + fillarg = None + for k, arg in enumerate(args): + if not isinstance(arg, type): + subargs = getattr(arg, '__typing_unpacked_tuple_args__', None) + if subargs and len(subargs) == 2 and subargs[-1] is ...: + if var_tuple_index is not None: + raise TypeError("More than one unpacked arbitrary-length tuple argument") + var_tuple_index = k + fillarg = subargs[0] + if var_tuple_index is not None: + left = min(left, var_tuple_index) + right = min(right, alen - var_tuple_index - 1) + elif left + right > alen: + raise TypeError(f"Too few arguments for {alias};" + f" actual {alen}, expected at least {plen-1}") + if left == alen - right and self.has_default(): + replacement = _unpack_args(self.__default__) + else: + replacement = args[left: alen - right] + + return ( + *args[:left], + *([fillarg]*(typevartuple_index - left)), + replacement, + *([fillarg]*(plen - right - left - typevartuple_index - 1)), + *args[alen - right:], + ) + + +def _paramspec_subst(self, arg): + if isinstance(arg, (list, tuple)): + arg = tuple(_type_check(a, "Expected a type.") for a in arg) + elif not _is_param_expr(arg): + raise TypeError(f"Expected a list of types, an ellipsis, " + f"ParamSpec, or Concatenate. Got {arg}") + return arg -class ParamSpecKwargs(_Final, _Immutable, _root=True): - """The kwargs for a ParamSpec object. +def _paramspec_prepare_subst(self, alias, args): + params = alias.__parameters__ + i = params.index(self) + if i == len(args) and self.has_default(): + args = [*args, self.__default__] + if i >= len(args): + raise TypeError(f"Too few arguments for {alias}") + # Special case where Z[[int, str, bool]] == Z[int, str, bool] in PEP 612. + if len(params) == 1 and not _is_param_expr(args[0]): + assert i == 0 + args = (args,) + # Convert lists to tuples to help other libraries cache the results. + elif isinstance(args[i], list): + args = (*args[:i], tuple(args[i]), *args[i+1:]) + return args - Given a ParamSpec object P, P.kwargs is an instance of ParamSpecKwargs. - ParamSpecKwargs objects have a reference back to their ParamSpec: +@_tp_cache +def _generic_class_getitem(cls, args): + """Parameterizes a generic class. - P.kwargs.__origin__ is P + At least, parameterizing a generic class is the *main* thing this method + does. For example, for some generic class `Foo`, this is called when we + do `Foo[int]` - there, with `cls=Foo` and `args=int`. - This type is meant for runtime introspection and has no special meaning to - static type checkers. + However, note that this method is also called when defining generic + classes in the first place with `class Foo(Generic[T]): ...`. """ - def __init__(self, origin): - self.__origin__ = origin - - def __repr__(self): - return f"{self.__origin__.__name__}.kwargs" + if not isinstance(args, tuple): + args = (args,) - def __eq__(self, other): - if not isinstance(other, ParamSpecKwargs): - return NotImplemented - return self.__origin__ == other.__origin__ - - -class ParamSpec(_Final, _Immutable, _TypeVarLike, _root=True): - """Parameter specification variable. - - Usage:: + args = tuple(_type_convert(p) for p in args) + is_generic_or_protocol = cls in (Generic, Protocol) - P = ParamSpec('P') - - Parameter specification variables exist primarily for the benefit of static - type checkers. They are used to forward the parameter types of one - callable to another callable, a pattern commonly found in higher order - functions and decorators. They are only valid when used in ``Concatenate``, - or as the first argument to ``Callable``, or as parameters for user-defined - Generics. See class Generic for more information on generic types. An - example for annotating a decorator:: - - T = TypeVar('T') - P = ParamSpec('P') - - def add_logging(f: Callable[P, T]) -> Callable[P, T]: - '''A type-safe decorator to add logging to a function.''' - def inner(*args: P.args, **kwargs: P.kwargs) -> T: - logging.info(f'{f.__name__} was called') - return f(*args, **kwargs) - return inner - - @add_logging - def add_two(x: float, y: float) -> float: - '''Add two numbers together.''' - return x + y - - Parameter specification variables defined with covariant=True or - contravariant=True can be used to declare covariant or contravariant - generic types. These keyword arguments are valid, but their actual semantics - are yet to be decided. See PEP 612 for details. - - Parameter specification variables can be introspected. e.g.: - - P.__name__ == 'T' - P.__bound__ == None - P.__covariant__ == False - P.__contravariant__ == False - - Note that only parameter specification variables defined in global scope can - be pickled. - """ + if is_generic_or_protocol: + # Generic and Protocol can only be subscripted with unique type variables. + if not args: + raise TypeError( + f"Parameter list to {cls.__qualname__}[...] cannot be empty" + ) + if not all(_is_typevar_like(p) for p in args): + raise TypeError( + f"Parameters to {cls.__name__}[...] must all be type variables " + f"or parameter specification variables.") + if len(set(args)) != len(args): + raise TypeError( + f"Parameters to {cls.__name__}[...] must all be unique") + else: + # Subscripting a regular Generic subclass. + for param in cls.__parameters__: + prepare = getattr(param, '__typing_prepare_subst__', None) + if prepare is not None: + args = prepare(cls, args) + _check_generic_specialization(cls, args) - __slots__ = ('__name__', '__bound__', '__covariant__', '__contravariant__', - '__dict__') + new_args = [] + for param, new_arg in zip(cls.__parameters__, args): + if isinstance(param, TypeVarTuple): + new_args.extend(new_arg) + else: + new_args.append(new_arg) + args = tuple(new_args) - @property - def args(self): - return ParamSpecArgs(self) + return _GenericAlias(cls, args) - @property - def kwargs(self): - return ParamSpecKwargs(self) - def __init__(self, name, *, bound=None, covariant=False, contravariant=False): - self.__name__ = name - super().__init__(bound, covariant, contravariant) - try: - def_mod = sys._getframe(1).f_globals.get('__name__', '__main__') - except (AttributeError, ValueError): - def_mod = None - if def_mod != 'typing': - self.__module__ = def_mod +def _generic_init_subclass(cls, *args, **kwargs): + super(Generic, cls).__init_subclass__(*args, **kwargs) + tvars = [] + if '__orig_bases__' in cls.__dict__: + error = Generic in cls.__orig_bases__ + else: + error = (Generic in cls.__bases__ and + cls.__name__ != 'Protocol' and + type(cls) != _TypedDictMeta) + if error: + raise TypeError("Cannot inherit from plain Generic") + if '__orig_bases__' in cls.__dict__: + tvars = _collect_type_parameters(cls.__orig_bases__) + # Look for Generic[T1, ..., Tn]. + # If found, tvars must be a subset of it. + # If not found, tvars is it. + # Also check for and reject plain Generic, + # and reject multiple Generic[...]. + gvars = None + for base in cls.__orig_bases__: + if (isinstance(base, _GenericAlias) and + base.__origin__ is Generic): + if gvars is not None: + raise TypeError( + "Cannot inherit from Generic[...] multiple times.") + gvars = base.__parameters__ + if gvars is not None: + tvarset = set(tvars) + gvarset = set(gvars) + if not tvarset <= gvarset: + s_vars = ', '.join(str(t) for t in tvars if t not in gvarset) + s_args = ', '.join(str(g) for g in gvars) + raise TypeError(f"Some type variables ({s_vars}) are" + f" not listed in Generic[{s_args}]") + tvars = gvars + cls.__parameters__ = tuple(tvars) def _is_dunder(attr): return attr.startswith('__') and attr.endswith('__') class _BaseGenericAlias(_Final, _root=True): - """The central part of internal API. + """The central part of the internal API. This represents a generic version of type 'origin' with type arguments 'params'. There are two kind of these aliases: user defined and special. The special ones are wrappers around builtin collections and ABCs in collections.abc. These must - have 'name' always set. If 'inst' is False, then the alias can't be instantiated, + have 'name' always set. If 'inst' is False, then the alias can't be instantiated; this is used by e.g. typing.List and typing.Dict. """ + def __init__(self, origin, *, inst=True, name=None): self._inst = inst self._name = name @@ -957,7 +1313,9 @@ def __call__(self, *args, **kwargs): result = self.__origin__(*args, **kwargs) try: result.__orig_class__ = self - except AttributeError: + # Some objects raise TypeError (or something even more exotic) + # if you try to set attributes on them; we guard against that here + except Exception: pass return result @@ -965,9 +1323,29 @@ def __mro_entries__(self, bases): res = [] if self.__origin__ not in bases: res.append(self.__origin__) + + # Check if any base that occurs after us in `bases` is either itself a + # subclass of Generic, or something which will add a subclass of Generic + # to `__bases__` via its `__mro_entries__`. If not, add Generic + # ourselves. The goal is to ensure that Generic (or a subclass) will + # appear exactly once in the final bases tuple. If we let it appear + # multiple times, we risk "can't form a consistent MRO" errors. i = bases.index(self) for b in bases[i+1:]: - if isinstance(b, _BaseGenericAlias) or issubclass(b, Generic): + if isinstance(b, _BaseGenericAlias): + break + if not isinstance(b, type): + meth = getattr(b, "__mro_entries__", None) + new_bases = meth(bases) if meth else None + if ( + isinstance(new_bases, tuple) and + any( + isinstance(b2, type) and issubclass(b2, Generic) + for b2 in new_bases + ) + ): + break + elif issubclass(b, Generic): break else: res.append(Generic) @@ -984,8 +1362,7 @@ def __getattr__(self, attr): raise AttributeError(attr) def __setattr__(self, attr, val): - if _is_dunder(attr) or attr in {'_name', '_inst', '_nparams', - '_typevar_types', '_paramspec_tvars'}: + if _is_dunder(attr) or attr in {'_name', '_inst', '_nparams', '_defaults'}: super().__setattr__(attr, val) else: setattr(self.__origin__, attr, val) @@ -1001,6 +1378,7 @@ def __dir__(self): return list(set(super().__dir__() + [attr for attr in dir(self.__origin__) if not _is_dunder(attr)])) + # Special typing constructs Union, Optional, Generic, Callable and Tuple # use three special attributes for internal bookkeeping of generic types: # * __parameters__ is a tuple of unique free type parameters of a generic @@ -1013,18 +1391,42 @@ def __dir__(self): class _GenericAlias(_BaseGenericAlias, _root=True): - def __init__(self, origin, params, *, inst=True, name=None, - _typevar_types=TypeVar, - _paramspec_tvars=False): + # The type of parameterized generics. + # + # That is, for example, `type(List[int])` is `_GenericAlias`. + # + # Objects which are instances of this class include: + # * Parameterized container types, e.g. `Tuple[int]`, `List[int]`. + # * Note that native container types, e.g. `tuple`, `list`, use + # `types.GenericAlias` instead. + # * Parameterized classes: + # class C[T]: pass + # # C[int] is a _GenericAlias + # * `Callable` aliases, generic `Callable` aliases, and + # parameterized `Callable` aliases: + # T = TypeVar('T') + # # _CallableGenericAlias inherits from _GenericAlias. + # A = Callable[[], None] # _CallableGenericAlias + # B = Callable[[T], None] # _CallableGenericAlias + # C = B[int] # _CallableGenericAlias + # * Parameterized `Final`, `ClassVar`, `TypeGuard`, and `TypeIs`: + # # All _GenericAlias + # Final[int] + # ClassVar[float] + # TypeGuard[bool] + # TypeIs[range] + + def __init__(self, origin, args, *, inst=True, name=None): super().__init__(origin, inst=inst, name=name) - if not isinstance(params, tuple): - params = (params,) + if not isinstance(args, tuple): + args = (args,) self.__args__ = tuple(... if a is _TypingEllipsis else - () if a is _TypingEmpty else - a for a in params) - self.__parameters__ = _collect_type_vars(params, typevar_types=_typevar_types) - self._typevar_types = _typevar_types - self._paramspec_tvars = _paramspec_tvars + a for a in args) + enforce_default_ordering = origin in (Generic, Protocol) + self.__parameters__ = _collect_type_parameters( + args, + enforce_default_ordering=enforce_default_ordering, + ) if not name: self.__module__ = origin.__module__ @@ -1044,53 +1446,140 @@ def __ror__(self, left): return Union[left, self] @_tp_cache - def __getitem__(self, params): + def __getitem__(self, args): + # Parameterizes an already-parameterized object. + # + # For example, we arrive here doing something like: + # T1 = TypeVar('T1') + # T2 = TypeVar('T2') + # T3 = TypeVar('T3') + # class A(Generic[T1]): pass + # B = A[T2] # B is a _GenericAlias + # C = B[T3] # Invokes _GenericAlias.__getitem__ + # + # We also arrive here when parameterizing a generic `Callable` alias: + # T = TypeVar('T') + # C = Callable[[T], None] + # C[int] # Invokes _GenericAlias.__getitem__ + if self.__origin__ in (Generic, Protocol): # Can't subscript Generic[...] or Protocol[...]. raise TypeError(f"Cannot subscript already-subscripted {self}") - if not isinstance(params, tuple): - params = (params,) - params = tuple(_type_convert(p) for p in params) - if (self._paramspec_tvars - and any(isinstance(t, ParamSpec) for t in self.__parameters__)): - params = _prepare_paramspec_params(self, params) - else: - _check_generic(self, params, len(self.__parameters__)) + if not self.__parameters__: + raise TypeError(f"{self} is not a generic class") - subst = dict(zip(self.__parameters__, params)) + # Preprocess `args`. + if not isinstance(args, tuple): + args = (args,) + args = _unpack_args(*(_type_convert(p) for p in args)) + new_args = self._determine_new_args(args) + r = self.copy_with(new_args) + return r + + def _determine_new_args(self, args): + # Determines new __args__ for __getitem__. + # + # For example, suppose we had: + # T1 = TypeVar('T1') + # T2 = TypeVar('T2') + # class A(Generic[T1, T2]): pass + # T3 = TypeVar('T3') + # B = A[int, T3] + # C = B[str] + # `B.__args__` is `(int, T3)`, so `C.__args__` should be `(int, str)`. + # Unfortunately, this is harder than it looks, because if `T3` is + # anything more exotic than a plain `TypeVar`, we need to consider + # edge cases. + + params = self.__parameters__ + # In the example above, this would be {T3: str} + for param in params: + prepare = getattr(param, '__typing_prepare_subst__', None) + if prepare is not None: + args = prepare(self, args) + alen = len(args) + plen = len(params) + if alen != plen: + raise TypeError(f"Too {'many' if alen > plen else 'few'} arguments for {self};" + f" actual {alen}, expected {plen}") + new_arg_by_param = dict(zip(params, args)) + return tuple(self._make_substitution(self.__args__, new_arg_by_param)) + + def _make_substitution(self, args, new_arg_by_param): + """Create a list of new type arguments.""" new_args = [] - for arg in self.__args__: - if isinstance(arg, self._typevar_types): - if isinstance(arg, ParamSpec): - arg = subst[arg] - if not _is_param_expr(arg): - raise TypeError(f"Expected a list of types, an ellipsis, " - f"ParamSpec, or Concatenate. Got {arg}") + for old_arg in args: + if isinstance(old_arg, type): + new_args.append(old_arg) + continue + + substfunc = getattr(old_arg, '__typing_subst__', None) + if substfunc: + new_arg = substfunc(new_arg_by_param[old_arg]) + else: + subparams = getattr(old_arg, '__parameters__', ()) + if not subparams: + new_arg = old_arg else: - arg = subst[arg] - elif isinstance(arg, (_GenericAlias, GenericAlias, types.UnionType)): - subparams = arg.__parameters__ - if subparams: - subargs = tuple(subst[x] for x in subparams) - arg = arg[subargs] - # Required to flatten out the args for CallableGenericAlias - if self.__origin__ == collections.abc.Callable and isinstance(arg, tuple): - new_args.extend(arg) + subargs = [] + for x in subparams: + if isinstance(x, TypeVarTuple): + subargs.extend(new_arg_by_param[x]) + else: + subargs.append(new_arg_by_param[x]) + new_arg = old_arg[tuple(subargs)] + + if self.__origin__ == collections.abc.Callable and isinstance(new_arg, tuple): + # Consider the following `Callable`. + # C = Callable[[int], str] + # Here, `C.__args__` should be (int, str) - NOT ([int], str). + # That means that if we had something like... + # P = ParamSpec('P') + # T = TypeVar('T') + # C = Callable[P, T] + # D = C[[int, str], float] + # ...we need to be careful; `new_args` should end up as + # `(int, str, float)` rather than `([int, str], float)`. + new_args.extend(new_arg) + elif _is_unpacked_typevartuple(old_arg): + # Consider the following `_GenericAlias`, `B`: + # class A(Generic[*Ts]): ... + # B = A[T, *Ts] + # If we then do: + # B[float, int, str] + # The `new_arg` corresponding to `T` will be `float`, and the + # `new_arg` corresponding to `*Ts` will be `(int, str)`. We + # should join all these types together in a flat list + # `(float, int, str)` - so again, we should `extend`. + new_args.extend(new_arg) + elif isinstance(old_arg, tuple): + # Corner case: + # P = ParamSpec('P') + # T = TypeVar('T') + # class Base(Generic[P]): ... + # Can be substituted like this: + # X = Base[[int, T]] + # In this case, `old_arg` will be a tuple: + new_args.append( + tuple(self._make_substitution(old_arg, new_arg_by_param)), + ) else: - new_args.append(arg) - return self.copy_with(tuple(new_args)) + new_args.append(new_arg) + return new_args - def copy_with(self, params): - return self.__class__(self.__origin__, params, name=self._name, inst=self._inst, - _typevar_types=self._typevar_types, - _paramspec_tvars=self._paramspec_tvars) + def copy_with(self, args): + return self.__class__(self.__origin__, args, name=self._name, inst=self._inst) def __repr__(self): if self._name: name = 'typing.' + self._name else: name = _type_repr(self.__origin__) - args = ", ".join([_type_repr(a) for a in self.__args__]) + if self.__args__: + args = ", ".join([_type_repr(a) for a in self.__args__]) + else: + # To ensure the repr is eval-able. + args = "()" return f'{name}[{args}]' def __reduce__(self): @@ -1118,17 +1607,21 @@ def __mro_entries__(self, bases): return () return (self.__origin__,) + def __iter__(self): + yield Unpack[self] + # _nparams is the number of accepted parameters, e.g. 0 for Hashable, # 1 for List and 2 for Dict. It may be -1 if variable number of # parameters are accepted (needs custom __getitem__). -class _SpecialGenericAlias(_BaseGenericAlias, _root=True): - def __init__(self, origin, nparams, *, inst=True, name=None): +class _SpecialGenericAlias(_NotIterable, _BaseGenericAlias, _root=True): + def __init__(self, origin, nparams, *, inst=True, name=None, defaults=()): if name is None: name = origin.__name__ super().__init__(origin, inst=inst, name=name) self._nparams = nparams + self._defaults = defaults if origin.__module__ == 'builtins': self.__doc__ = f'A generic version of {origin.__qualname__}.' else: @@ -1140,7 +1633,22 @@ def __getitem__(self, params): params = (params,) msg = "Parameters to generic types must be types." params = tuple(_type_check(p, msg) for p in params) - _check_generic(self, params, self._nparams) + if (self._defaults + and len(params) < self._nparams + and len(params) + len(self._defaults) >= self._nparams + ): + params = (*params, *self._defaults[len(params) - self._nparams:]) + actual_len = len(params) + + if actual_len != self._nparams: + if self._defaults: + expected = f"at least {self._nparams - len(self._defaults)}" + else: + expected = str(self._nparams) + if not self._nparams: + raise TypeError(f"{self} is not a generic class") + raise TypeError(f"Too {'many' if actual_len > self._nparams else 'few'} arguments for {self};" + f" actual {actual_len}, expected {expected}") return self.copy_with(params) def copy_with(self, params): @@ -1166,7 +1674,23 @@ def __or__(self, right): def __ror__(self, left): return Union[left, self] -class _CallableGenericAlias(_GenericAlias, _root=True): + +class _DeprecatedGenericAlias(_SpecialGenericAlias, _root=True): + def __init__( + self, origin, nparams, *, removal_version, inst=True, name=None + ): + super().__init__(origin, nparams, inst=inst, name=name) + self._removal_version = removal_version + + def __instancecheck__(self, inst): + import warnings + warnings._deprecated( + f"{self.__module__}.{self._name}", remove=self._removal_version + ) + return super().__instancecheck__(inst) + + +class _CallableGenericAlias(_NotIterable, _GenericAlias, _root=True): def __repr__(self): assert self._name == 'Callable' args = self.__args__ @@ -1186,9 +1710,7 @@ def __reduce__(self): class _CallableType(_SpecialGenericAlias, _root=True): def copy_with(self, params): return _CallableGenericAlias(self.__origin__, params, - name=self._name, inst=self._inst, - _typevar_types=(TypeVar, ParamSpec), - _paramspec_tvars=True) + name=self._name, inst=self._inst) def __getitem__(self, params): if not isinstance(params, tuple) or len(params) != 2: @@ -1221,27 +1743,28 @@ def __getitem_inner__(self, params): class _TupleType(_SpecialGenericAlias, _root=True): @_tp_cache def __getitem__(self, params): - if params == (): - return self.copy_with((_TypingEmpty,)) if not isinstance(params, tuple): params = (params,) - if len(params) == 2 and params[1] is ...: + if len(params) >= 2 and params[-1] is ...: msg = "Tuple[t, ...]: t must be a type." - p = _type_check(params[0], msg) - return self.copy_with((p, _TypingEllipsis)) + params = tuple(_type_check(p, msg) for p in params[:-1]) + return self.copy_with((*params, _TypingEllipsis)) msg = "Tuple[t0, t1, ...]: each t must be a type." params = tuple(_type_check(p, msg) for p in params) return self.copy_with(params) -class _UnionGenericAlias(_GenericAlias, _root=True): +class _UnionGenericAlias(_NotIterable, _GenericAlias, _root=True): def copy_with(self, params): return Union[params] def __eq__(self, other): if not isinstance(other, (_UnionGenericAlias, types.UnionType)): return NotImplemented - return set(self.__args__) == set(other.__args__) + try: # fast path + return set(self.__args__) == set(other.__args__) + except TypeError: # not hashable, slow path + return _compare_args_orderless(self.__args__, other.__args__) def __hash__(self): return hash(frozenset(self.__args__)) @@ -1256,12 +1779,16 @@ def __repr__(self): return super().__repr__() def __instancecheck__(self, obj): - return self.__subclasscheck__(type(obj)) + for arg in self.__args__: + if isinstance(obj, arg): + return True + return False def __subclasscheck__(self, cls): for arg in self.__args__: if issubclass(cls, arg): return True + return False def __reduce__(self): func, (origin, args) = super().__reduce__() @@ -1273,7 +1800,6 @@ def _value_and_type_iter(parameters): class _LiteralGenericAlias(_GenericAlias, _root=True): - def __eq__(self, other): if not isinstance(other, _LiteralGenericAlias): return NotImplemented @@ -1290,118 +1816,108 @@ def copy_with(self, params): return (*params[:-1], *params[-1]) if isinstance(params[-1], _ConcatenateGenericAlias): params = (*params[:-1], *params[-1].__args__) - elif not isinstance(params[-1], ParamSpec): - raise TypeError("The last parameter to Concatenate should be a " - "ParamSpec variable.") return super().copy_with(params) -class Generic: - """Abstract base class for generic types. +@_SpecialForm +def Unpack(self, parameters): + """Type unpack operator. - A generic type is typically declared by inheriting from - this class parameterized with one or more type variables. - For example, a generic mapping type might be defined as:: + The type unpack operator takes the child types from some container type, + such as `tuple[int, str]` or a `TypeVarTuple`, and 'pulls them out'. - class Mapping(Generic[KT, VT]): - def __getitem__(self, key: KT) -> VT: - ... - # Etc. + For example:: - This class can then be used as follows:: + # For some generic class `Foo`: + Foo[Unpack[tuple[int, str]]] # Equivalent to Foo[int, str] - def lookup_name(mapping: Mapping[KT, VT], key: KT, default: VT) -> VT: - try: - return mapping[key] - except KeyError: - return default - """ - __slots__ = () - _is_protocol = False + Ts = TypeVarTuple('Ts') + # Specifies that `Bar` is generic in an arbitrary number of types. + # (Think of `Ts` as a tuple of an arbitrary number of individual + # `TypeVar`s, which the `Unpack` is 'pulling out' directly into the + # `Generic[]`.) + class Bar(Generic[Unpack[Ts]]): ... + Bar[int] # Valid + Bar[int, str] # Also valid - @_tp_cache - def __class_getitem__(cls, params): - if not isinstance(params, tuple): - params = (params,) - if not params and cls is not Tuple: - raise TypeError( - f"Parameter list to {cls.__qualname__}[...] cannot be empty") - params = tuple(_type_convert(p) for p in params) - if cls in (Generic, Protocol): - # Generic and Protocol can only be subscripted with unique type variables. - if not all(isinstance(p, (TypeVar, ParamSpec)) for p in params): - raise TypeError( - f"Parameters to {cls.__name__}[...] must all be type variables " - f"or parameter specification variables.") - if len(set(params)) != len(params): - raise TypeError( - f"Parameters to {cls.__name__}[...] must all be unique") - else: - # Subscripting a regular Generic subclass. - if any(isinstance(t, ParamSpec) for t in cls.__parameters__): - params = _prepare_paramspec_params(cls, params) - else: - _check_generic(cls, params, len(cls.__parameters__)) - return _GenericAlias(cls, params, - _typevar_types=(TypeVar, ParamSpec), - _paramspec_tvars=True) + From Python 3.11, this can also be done using the `*` operator:: - def __init_subclass__(cls, *args, **kwargs): - super().__init_subclass__(*args, **kwargs) - tvars = [] - if '__orig_bases__' in cls.__dict__: - error = Generic in cls.__orig_bases__ - else: - error = Generic in cls.__bases__ and cls.__name__ != 'Protocol' - if error: - raise TypeError("Cannot inherit from plain Generic") - if '__orig_bases__' in cls.__dict__: - tvars = _collect_type_vars(cls.__orig_bases__, (TypeVar, ParamSpec)) - # Look for Generic[T1, ..., Tn]. - # If found, tvars must be a subset of it. - # If not found, tvars is it. - # Also check for and reject plain Generic, - # and reject multiple Generic[...]. - gvars = None - for base in cls.__orig_bases__: - if (isinstance(base, _GenericAlias) and - base.__origin__ is Generic): - if gvars is not None: - raise TypeError( - "Cannot inherit from Generic[...] multiple types.") - gvars = base.__parameters__ - if gvars is not None: - tvarset = set(tvars) - gvarset = set(gvars) - if not tvarset <= gvarset: - s_vars = ', '.join(str(t) for t in tvars if t not in gvarset) - s_args = ', '.join(str(g) for g in gvars) - raise TypeError(f"Some type variables ({s_vars}) are" - f" not listed in Generic[{s_args}]") - tvars = gvars - cls.__parameters__ = tuple(tvars) - - -class _TypingEmpty: - """Internal placeholder for () or []. Used by TupleMeta and CallableMeta - to allow empty list/tuple in specific places, without allowing them - to sneak in where prohibited. + Foo[*tuple[int, str]] + class Bar(Generic[*Ts]): ... + + And from Python 3.12, it can be done using built-in syntax for generics:: + + Foo[*tuple[int, str]] + class Bar[*Ts]: ... + + The operator can also be used along with a `TypedDict` to annotate + `**kwargs` in a function signature:: + + class Movie(TypedDict): + name: str + year: int + + # This function expects two keyword arguments - *name* of type `str` and + # *year* of type `int`. + def foo(**kwargs: Unpack[Movie]): ... + + Note that there is only some runtime checking of this operator. Not + everything the runtime allows may be accepted by static type checkers. + + For more information, see PEPs 646 and 692. """ + item = _type_check(parameters, f'{self} accepts only single type.') + return _UnpackGenericAlias(origin=self, args=(item,)) + + +class _UnpackGenericAlias(_GenericAlias, _root=True): + def __repr__(self): + # `Unpack` only takes one argument, so __args__ should contain only + # a single item. + return f'typing.Unpack[{_type_repr(self.__args__[0])}]' + + def __getitem__(self, args): + if self.__typing_is_unpacked_typevartuple__: + return args + return super().__getitem__(args) + + @property + def __typing_unpacked_tuple_args__(self): + assert self.__origin__ is Unpack + assert len(self.__args__) == 1 + arg, = self.__args__ + if isinstance(arg, (_GenericAlias, types.GenericAlias)): + if arg.__origin__ is not tuple: + raise TypeError("Unpack[...] must be used with a tuple type") + return arg.__args__ + return None + + @property + def __typing_is_unpacked_typevartuple__(self): + assert self.__origin__ is Unpack + assert len(self.__args__) == 1 + return isinstance(self.__args__[0], TypeVarTuple) class _TypingEllipsis: """Internal placeholder for ... (ellipsis).""" -_TYPING_INTERNALS = ['__parameters__', '__orig_bases__', '__orig_class__', - '_is_protocol', '_is_runtime_protocol'] +_TYPING_INTERNALS = frozenset({ + '__parameters__', '__orig_bases__', '__orig_class__', + '_is_protocol', '_is_runtime_protocol', '__protocol_attrs__', + '__non_callable_proto_members__', '__type_params__', +}) -_SPECIAL_NAMES = ['__abstractmethods__', '__annotations__', '__dict__', '__doc__', - '__init__', '__module__', '__new__', '__slots__', - '__subclasshook__', '__weakref__', '__class_getitem__'] +_SPECIAL_NAMES = frozenset({ + '__abstractmethods__', '__annotations__', '__dict__', '__doc__', + '__init__', '__module__', '__new__', '__slots__', + '__subclasshook__', '__weakref__', '__class_getitem__', + '__match_args__', '__static_attributes__', '__firstlineno__', +}) # These special attributes will be not collected as protocol members. -EXCLUDED_ATTRIBUTES = _TYPING_INTERNALS + _SPECIAL_NAMES + ['_MutableMapping__marker'] +EXCLUDED_ATTRIBUTES = _TYPING_INTERNALS | _SPECIAL_NAMES | {'_MutableMapping__marker'} def _get_protocol_attrs(cls): @@ -1412,20 +1928,15 @@ def _get_protocol_attrs(cls): """ attrs = set() for base in cls.__mro__[:-1]: # without object - if base.__name__ in ('Protocol', 'Generic'): + if base.__name__ in {'Protocol', 'Generic'}: continue annotations = getattr(base, '__annotations__', {}) - for attr in list(base.__dict__.keys()) + list(annotations.keys()): + for attr in (*base.__dict__, *annotations): if not attr.startswith('_abc_') and attr not in EXCLUDED_ATTRIBUTES: attrs.add(attr) return attrs -def _is_callable_members_only(cls): - # PEP 544 prohibits using issubclass() with protocols that have non-method members. - return all(callable(getattr(cls, attr, None)) for attr in _get_protocol_attrs(cls)) - - def _no_init_or_replace_init(self, *args, **kwargs): cls = type(self) @@ -1456,59 +1967,192 @@ def _no_init_or_replace_init(self, *args, **kwargs): def _caller(depth=1, default='__main__'): + try: + return sys._getframemodulename(depth + 1) or default + except AttributeError: # For platforms without _getframemodulename() + pass try: return sys._getframe(depth + 1).f_globals.get('__name__', default) except (AttributeError, ValueError): # For platforms without _getframe() - return None - + pass + return None -def _allow_reckless_class_checks(depth=3): +def _allow_reckless_class_checks(depth=2): """Allow instance and class checks for special stdlib modules. The abc and functools modules indiscriminately call isinstance() and issubclass() on the whole MRO of a user class, which may contain protocols. """ - try: - return sys._getframe(depth).f_globals['__name__'] in ['abc', 'functools'] - except (AttributeError, ValueError): # For platforms without _getframe(). - return True + return _caller(depth) in {'abc', 'functools', None} + + +_PROTO_ALLOWLIST = { + 'collections.abc': [ + 'Callable', 'Awaitable', 'Iterable', 'Iterator', 'AsyncIterable', + 'AsyncIterator', 'Hashable', 'Sized', 'Container', 'Collection', + 'Reversible', 'Buffer', + ], + 'contextlib': ['AbstractContextManager', 'AbstractAsyncContextManager'], +} + + +@functools.cache +def _lazy_load_getattr_static(): + # Import getattr_static lazily so as not to slow down the import of typing.py + # Cache the result so we don't slow down _ProtocolMeta.__instancecheck__ unnecessarily + from inspect import getattr_static + return getattr_static + + +_cleanups.append(_lazy_load_getattr_static.cache_clear) + +def _pickle_psargs(psargs): + return ParamSpecArgs, (psargs.__origin__,) + +copyreg.pickle(ParamSpecArgs, _pickle_psargs) + +def _pickle_pskwargs(pskwargs): + return ParamSpecKwargs, (pskwargs.__origin__,) + +copyreg.pickle(ParamSpecKwargs, _pickle_pskwargs) + +del _pickle_psargs, _pickle_pskwargs + + +# Preload these once, as globals, as a micro-optimisation. +# This makes a significant difference to the time it takes +# to do `isinstance()`/`issubclass()` checks +# against runtime-checkable protocols with only one callable member. +_abc_instancecheck = ABCMeta.__instancecheck__ +_abc_subclasscheck = ABCMeta.__subclasscheck__ + +def _type_check_issubclass_arg_1(arg): + """Raise TypeError if `arg` is not an instance of `type` + in `issubclass(arg, )`. -_PROTO_ALLOWLIST = { - 'collections.abc': [ - 'Callable', 'Awaitable', 'Iterable', 'Iterator', 'AsyncIterable', - 'Hashable', 'Sized', 'Container', 'Collection', 'Reversible', - ], - 'contextlib': ['AbstractContextManager', 'AbstractAsyncContextManager'], -} + In most cases, this is verified by type.__subclasscheck__. + Checking it again unnecessarily would slow down issubclass() checks, + so, we don't perform this check unless we absolutely have to. + + For various error paths, however, + we want to ensure that *this* error message is shown to the user + where relevant, rather than a typing.py-specific error message. + """ + if not isinstance(arg, type): + # Same error message as for issubclass(1, int). + raise TypeError('issubclass() arg 1 must be a class') class _ProtocolMeta(ABCMeta): - # This metaclass is really unfortunate and exists only because of - # the lack of __instancehook__. + # This metaclass is somewhat unfortunate, + # but is necessary for several reasons... + def __new__(mcls, name, bases, namespace, /, **kwargs): + if name == "Protocol" and bases == (Generic,): + pass + elif Protocol in bases: + for base in bases: + if not ( + base in {object, Generic} + or base.__name__ in _PROTO_ALLOWLIST.get(base.__module__, []) + or ( + issubclass(base, Generic) + and getattr(base, "_is_protocol", False) + ) + ): + raise TypeError( + f"Protocols can only inherit from other protocols, " + f"got {base!r}" + ) + return super().__new__(mcls, name, bases, namespace, **kwargs) + + def __init__(cls, *args, **kwargs): + super().__init__(*args, **kwargs) + if getattr(cls, "_is_protocol", False): + cls.__protocol_attrs__ = _get_protocol_attrs(cls) + + def __subclasscheck__(cls, other): + if cls is Protocol: + return type.__subclasscheck__(cls, other) + if ( + getattr(cls, '_is_protocol', False) + and not _allow_reckless_class_checks() + ): + if not getattr(cls, '_is_runtime_protocol', False): + _type_check_issubclass_arg_1(other) + raise TypeError( + "Instance and class checks can only be used with " + "@runtime_checkable protocols" + ) + if ( + # this attribute is set by @runtime_checkable: + cls.__non_callable_proto_members__ + and cls.__dict__.get("__subclasshook__") is _proto_hook + ): + _type_check_issubclass_arg_1(other) + # non_method_attrs = sorted(cls.__non_callable_proto_members__) + # raise TypeError( + # "Protocols with non-method members don't support issubclass()." + # f" Non-method members: {str(non_method_attrs)[1:-1]}." + # ) + return _abc_subclasscheck(cls, other) + def __instancecheck__(cls, instance): # We need this method for situations where attributes are # assigned in __init__. + if cls is Protocol: + return type.__instancecheck__(cls, instance) + if not getattr(cls, "_is_protocol", False): + # i.e., it's a concrete subclass of a protocol + return _abc_instancecheck(cls, instance) + if ( - getattr(cls, '_is_protocol', False) and not getattr(cls, '_is_runtime_protocol', False) and - not _allow_reckless_class_checks(depth=2) + not _allow_reckless_class_checks() ): raise TypeError("Instance and class checks can only be used with" " @runtime_checkable protocols") - if ((not getattr(cls, '_is_protocol', False) or - _is_callable_members_only(cls)) and - issubclass(instance.__class__, cls)): + if _abc_instancecheck(cls, instance): return True - if cls._is_protocol: - if all(hasattr(instance, attr) and - # All *methods* can be blocked by setting them to None. - (not callable(getattr(cls, attr, None)) or - getattr(instance, attr) is not None) - for attr in _get_protocol_attrs(cls)): - return True - return super().__instancecheck__(instance) + + getattr_static = _lazy_load_getattr_static() + for attr in cls.__protocol_attrs__: + try: + val = getattr_static(instance, attr) + except AttributeError: + break + # this attribute is set by @runtime_checkable: + if val is None and attr not in cls.__non_callable_proto_members__: + break + else: + return True + + return False + + +@classmethod +def _proto_hook(cls, other): + if not cls.__dict__.get('_is_protocol', False): + return NotImplemented + + for attr in cls.__protocol_attrs__: + for base in other.__mro__: + # Check if the members appears in the class dictionary... + if attr in base.__dict__: + if base.__dict__[attr] is None: + return NotImplemented + break + + # ...or in annotations, if it is a sub-protocol. + annotations = getattr(base, '__annotations__', {}) + if (isinstance(annotations, collections.abc.Mapping) and + attr in annotations and + issubclass(other, Generic) and getattr(other, '_is_protocol', False)): + break + else: + return NotImplemented + return True class Protocol(Generic, metaclass=_ProtocolMeta): @@ -1521,7 +2165,9 @@ def meth(self) -> int: ... Such classes are primarily used with static type checkers that recognize - structural subtyping (static duck-typing), for example:: + structural subtyping (static duck-typing). + + For example:: class C: def meth(self) -> int: @@ -1537,10 +2183,11 @@ def func(x: Proto) -> int: only the presence of given attributes, ignoring their type signatures. Protocol classes can be generic, they are defined as:: - class GenProto(Protocol[T]): + class GenProto[T](Protocol): def meth(self) -> T: ... """ + __slots__ = () _is_protocol = True _is_runtime_protocol = False @@ -1553,75 +2200,30 @@ def __init_subclass__(cls, *args, **kwargs): cls._is_protocol = any(b is Protocol for b in cls.__bases__) # Set (or override) the protocol subclass hook. - def _proto_hook(other): - if not cls.__dict__.get('_is_protocol', False): - return NotImplemented - - # First, perform various sanity checks. - if not getattr(cls, '_is_runtime_protocol', False): - if _allow_reckless_class_checks(): - return NotImplemented - raise TypeError("Instance and class checks can only be used with" - " @runtime_checkable protocols") - if not _is_callable_members_only(cls): - if _allow_reckless_class_checks(): - return NotImplemented - raise TypeError("Protocols with non-method members" - " don't support issubclass()") - if not isinstance(other, type): - # Same error message as for issubclass(1, int). - raise TypeError('issubclass() arg 1 must be a class') - - # Second, perform the actual structural compatibility check. - for attr in _get_protocol_attrs(cls): - for base in other.__mro__: - # Check if the members appears in the class dictionary... - if attr in base.__dict__: - if base.__dict__[attr] is None: - return NotImplemented - break - - # ...or in annotations, if it is a sub-protocol. - annotations = getattr(base, '__annotations__', {}) - if (isinstance(annotations, collections.abc.Mapping) and - attr in annotations and - issubclass(other, Generic) and other._is_protocol): - break - else: - return NotImplemented - return True - if '__subclasshook__' not in cls.__dict__: cls.__subclasshook__ = _proto_hook - # We have nothing more to do for non-protocols... - if not cls._is_protocol: - return + # Prohibit instantiation for protocol classes + if cls._is_protocol and cls.__init__ is Protocol.__init__: + cls.__init__ = _no_init_or_replace_init - # ... otherwise check consistency of bases, and prohibit instantiation. - for base in cls.__bases__: - if not (base in (object, Generic) or - base.__module__ in _PROTO_ALLOWLIST and - base.__name__ in _PROTO_ALLOWLIST[base.__module__] or - issubclass(base, Generic) and base._is_protocol): - raise TypeError('Protocols can only inherit from other' - ' protocols, got %r' % base) - cls.__init__ = _no_init_or_replace_init - -class _AnnotatedAlias(_GenericAlias, _root=True): +class _AnnotatedAlias(_NotIterable, _GenericAlias, _root=True): """Runtime representation of an annotated type. At its core 'Annotated[t, dec1, dec2, ...]' is an alias for the type 't' - with extra annotations. The alias behaves like a normal typing alias, - instantiating is the same as instantiating the underlying type, binding + with extra annotations. The alias behaves like a normal typing alias. + Instantiating is the same as instantiating the underlying type; binding it to types is also the same. + + The metadata itself is stored in a '__metadata__' attribute as a tuple. """ + def __init__(self, origin, metadata): if isinstance(origin, _AnnotatedAlias): metadata = origin.__metadata__ + metadata origin = origin.__origin__ - super().__init__(origin, origin) + super().__init__(origin, origin, name='Annotated') self.__metadata__ = metadata def copy_with(self, params): @@ -1654,9 +2256,14 @@ def __getattr__(self, attr): return 'Annotated' return super().__getattr__(attr) + def __mro_entries__(self, bases): + return (self.__origin__,) + -class Annotated: - """Add context specific metadata to a type. +@_TypedCacheSpecialForm +@_tp_cache(typed=True) +def Annotated(self, *params): + """Add context-specific metadata to a type. Example: Annotated[int, runtime_check.Unsigned] indicates to the hypothetical runtime_check module that this type is an unsigned int. @@ -1668,44 +2275,51 @@ class Annotated: Details: - It's an error to call `Annotated` with less than two arguments. - - Nested Annotated are flattened:: + - Access the metadata via the ``__metadata__`` attribute:: + + assert Annotated[int, '$'].__metadata__ == ('$',) - Annotated[Annotated[T, Ann1, Ann2], Ann3] == Annotated[T, Ann1, Ann2, Ann3] + - Nested Annotated types are flattened:: + + assert Annotated[Annotated[T, Ann1, Ann2], Ann3] == Annotated[T, Ann1, Ann2, Ann3] - Instantiating an annotated type is equivalent to instantiating the underlying type:: - Annotated[C, Ann1](5) == C(5) + assert Annotated[C, Ann1](5) == C(5) - Annotated can be used as a generic type alias:: - Optimized = Annotated[T, runtime.Optimize()] - Optimized[int] == Annotated[int, runtime.Optimize()] + type Optimized[T] = Annotated[T, runtime.Optimize()] + # type checker will treat Optimized[int] + # as equivalent to Annotated[int, runtime.Optimize()] - OptimizedList = Annotated[List[T], runtime.Optimize()] - OptimizedList[int] == Annotated[List[int], runtime.Optimize()] - """ + type OptimizedList[T] = Annotated[list[T], runtime.Optimize()] + # type checker will treat OptimizedList[int] + # as equivalent to Annotated[list[int], runtime.Optimize()] - __slots__ = () + - Annotated cannot be used with an unpacked TypeVarTuple:: - def __new__(cls, *args, **kwargs): - raise TypeError("Type Annotated cannot be instantiated.") + type Variadic[*Ts] = Annotated[*Ts, Ann1] # NOT valid - @_tp_cache - def __class_getitem__(cls, params): - if not isinstance(params, tuple) or len(params) < 2: - raise TypeError("Annotated[...] should be used " - "with at least two arguments (a type and an " - "annotation).") - msg = "Annotated[t, ...]: t must be a type." - origin = _type_check(params[0], msg, allow_special_forms=True) - metadata = tuple(params[1:]) - return _AnnotatedAlias(origin, metadata) + This would be equivalent to:: - def __init_subclass__(cls, *args, **kwargs): - raise TypeError( - "Cannot subclass {}.Annotated".format(cls.__module__) - ) + Annotated[T1, T2, T3, ..., Ann1] + + where T1, T2 etc. are TypeVars, which would be invalid, because + only one type should be passed to Annotated. + """ + if len(params) < 2: + raise TypeError("Annotated[...] should be used " + "with at least two arguments (a type and an " + "annotation).") + if _is_unpacked_typevartuple(params[0]): + raise TypeError("Annotated[...] should not be used with an " + "unpacked TypeVarTuple") + msg = "Annotated[t, ...]: t must be a type." + origin = _type_check(params[0], msg, allow_special_forms=True) + metadata = tuple(params[1:]) + return _AnnotatedAlias(origin, metadata) def runtime_checkable(cls): @@ -1715,6 +2329,7 @@ def runtime_checkable(cls): Raise TypeError if applied to a non-protocol class. This allows a simple-minded structural check very similar to one trick ponies in collections.abc such as Iterable. + For example:: @runtime_checkable @@ -1726,10 +2341,26 @@ def close(self): ... Warning: this will check only the presence of the required methods, not their type signatures! """ - if not issubclass(cls, Generic) or not cls._is_protocol: + if not issubclass(cls, Generic) or not getattr(cls, '_is_protocol', False): raise TypeError('@runtime_checkable can be only applied to protocol classes,' ' got %r' % cls) cls._is_runtime_protocol = True + # PEP 544 prohibits using issubclass() + # with protocols that have non-method members. + # See gh-113320 for why we compute this attribute here, + # rather than in `_ProtocolMeta.__init__` + cls.__non_callable_proto_members__ = set() + for attr in cls.__protocol_attrs__: + try: + is_callable = callable(getattr(cls, attr, None)) + except Exception as e: + raise TypeError( + f"Failed to determine whether protocol member {attr!r} " + "is a method member" + ) from e + else: + if not is_callable: + cls.__non_callable_proto_members__.add(attr) return cls @@ -1744,24 +2375,20 @@ def cast(typ, val): return val -def _get_defaults(func): - """Internal helper to extract the default arguments, by name.""" - try: - code = func.__code__ - except AttributeError: - # Some built-in functions don't have __code__, __defaults__, etc. - return {} - pos_count = code.co_argcount - arg_names = code.co_varnames - arg_names = arg_names[:pos_count] - defaults = func.__defaults__ or () - kwdefaults = func.__kwdefaults__ - res = dict(kwdefaults) if kwdefaults else {} - pos_offset = pos_count - len(defaults) - for name, value in zip(arg_names[pos_offset:], defaults): - assert name not in res - res[name] = value - return res +def assert_type(val, typ, /): + """Ask a static type checker to confirm that the value is of the given type. + + At runtime this does nothing: it returns the first argument unchanged with no + checks or side effects, no matter the actual type of the argument. + + When a static type checker encounters a call to assert_type(), it + emits an error if the value is not of the specified type:: + + def greet(name: str) -> None: + assert_type(name, str) # OK + assert_type(name, int) # type checker error + """ + return val _allowed_types = (types.FunctionType, types.BuiltinFunctionType, @@ -1773,8 +2400,7 @@ def get_type_hints(obj, globalns=None, localns=None, include_extras=False): """Return type hints for an object. This is often the same as obj.__annotations__, but it handles - forward references encoded as string literals, adds Optional[t] if a - default value equal to None is set and recursively replaces all + forward references encoded as string literals and recursively replaces all 'Annotated[T, ...]' with 'T' (unless 'include_extras=True'). The argument may be a module, class, method, or function. The annotations @@ -1801,7 +2427,6 @@ def get_type_hints(obj, globalns=None, localns=None, include_extras=False): - If two dict arguments are passed, they specify globals and locals, respectively. """ - if getattr(obj, '__no_type_check__', None): return {} # Classes require a special treatment. @@ -1829,7 +2454,7 @@ def get_type_hints(obj, globalns=None, localns=None, include_extras=False): value = type(None) if isinstance(value, str): value = ForwardRef(value, is_argument=False, is_class=True) - value = _eval_type(value, base_globals, base_locals) + value = _eval_type(value, base_globals, base_locals, base.__type_params__) hints[name] = value return hints if include_extras else {k: _strip_annotations(t) for k, t in hints.items()} @@ -1854,8 +2479,8 @@ def get_type_hints(obj, globalns=None, localns=None, include_extras=False): else: raise TypeError('{!r} is not a module, class, method, ' 'or function.'.format(obj)) - defaults = _get_defaults(obj) hints = dict(hints) + type_params = getattr(obj, "__type_params__", ()) for name, value in hints.items(): if value is None: value = type(None) @@ -1867,18 +2492,16 @@ def get_type_hints(obj, globalns=None, localns=None, include_extras=False): is_argument=not isinstance(obj, types.ModuleType), is_class=False, ) - value = _eval_type(value, globalns, localns) - if name in defaults and defaults[name] is None: - value = Optional[value] - hints[name] = value + hints[name] = _eval_type(value, globalns, localns, type_params) return hints if include_extras else {k: _strip_annotations(t) for k, t in hints.items()} def _strip_annotations(t): - """Strips the annotations from a given type. - """ + """Strip the annotations from a given type.""" if isinstance(t, _AnnotatedAlias): return _strip_annotations(t.__origin__) + if hasattr(t, "__origin__") and t.__origin__ in (Required, NotRequired, ReadOnly): + return _strip_annotations(t.__args__[0]) if isinstance(t, _GenericAlias): stripped_args = tuple(_strip_annotations(a) for a in t.__args__) if stripped_args == t.__args__: @@ -1901,17 +2524,8 @@ def _strip_annotations(t): def get_origin(tp): """Get the unsubscripted version of a type. - This supports generic types, Callable, Tuple, Union, Literal, Final, ClassVar - and Annotated. Return None for unsupported types. Examples:: - - get_origin(Literal[42]) is Literal - get_origin(int) is None - get_origin(ClassVar[int]) is ClassVar - get_origin(Generic) is Generic - get_origin(Generic[T]) is Generic - get_origin(Union[T, int]) is Union - get_origin(List[Tuple[T, T]][int]) == list - get_origin(P.args) is P + This supports generic types, Callable, Tuple, Union, Literal, Final, ClassVar, + Annotated, and others. Return None for unsupported types. """ if isinstance(tp, _AnnotatedAlias): return Annotated @@ -1929,19 +2543,17 @@ def get_args(tp): """Get type arguments with all substitutions performed. For unions, basic simplifications used by Union constructor are performed. + Examples:: - get_args(Dict[str, int]) == (str, int) - get_args(int) == () - get_args(Union[int, Union[T, int], str][int]) == (int, str) - get_args(Union[int, Tuple[T, int]][str]) == (int, Tuple[str, int]) - get_args(Callable[[], T][int]) == ([], int) + + >>> T = TypeVar('T') + >>> assert get_args(Dict[str, int]) == (str, int) """ if isinstance(tp, _AnnotatedAlias): return (tp.__origin__,) + tp.__metadata__ if isinstance(tp, (_GenericAlias, GenericAlias)): res = tp.__args__ - if (tp.__origin__ is collections.abc.Callable - and not (len(res) == 2 and _is_param_expr(res[0]))): + if _should_unflatten_callable_args(tp, res): res = (list(res[:-1]), res[-1]) return res if isinstance(tp, types.UnionType): @@ -1950,19 +2562,51 @@ def get_args(tp): def is_typeddict(tp): - """Check if an annotation is a TypedDict class + """Check if an annotation is a TypedDict class. For example:: - class Film(TypedDict): - title: str - year: int - is_typeddict(Film) # => True - is_typeddict(Union[list, str]) # => False + >>> from typing import TypedDict + >>> class Film(TypedDict): + ... title: str + ... year: int + ... + >>> is_typeddict(Film) + True + >>> is_typeddict(dict) + False """ return isinstance(tp, _TypedDictMeta) +_ASSERT_NEVER_REPR_MAX_LENGTH = 100 + + +def assert_never(arg: Never, /) -> Never: + """Statically assert that a line of code is unreachable. + + Example:: + + def int_or_str(arg: int | str) -> None: + match arg: + case int(): + print("It's an int") + case str(): + print("It's a str") + case _: + assert_never(arg) + + If a type checker finds that a call to assert_never() is + reachable, it will emit an error. + + At runtime, this throws an exception when called. + """ + value = repr(arg) + if len(value) > _ASSERT_NEVER_REPR_MAX_LENGTH: + value = value[:_ASSERT_NEVER_REPR_MAX_LENGTH] + '...' + raise AssertionError(f"Expected code to be unreachable, but got: {value}") + + def no_type_check(arg): """Decorator to indicate that annotations are not type hints. @@ -1973,13 +2617,23 @@ def no_type_check(arg): This mutates the function(s) or class(es) in place. """ if isinstance(arg, type): - arg_attrs = arg.__dict__.copy() - for attr, val in arg.__dict__.items(): - if val in arg.__bases__ + (arg,): - arg_attrs.pop(attr) - for obj in arg_attrs.values(): + for key in dir(arg): + obj = getattr(arg, key) + if ( + not hasattr(obj, '__qualname__') + or obj.__qualname__ != f'{arg.__qualname__}.{obj.__name__}' + or getattr(obj, '__module__', None) != arg.__module__ + ): + # We only modify objects that are defined in this type directly. + # If classes / methods are nested in multiple layers, + # we will modify them when processing their direct holders. + continue + # Instance, class, and static methods: if isinstance(obj, types.FunctionType): obj.__no_type_check__ = True + if isinstance(obj, types.MethodType): + obj.__func__.__no_type_check__ = True + # Nested types: if isinstance(obj, type): no_type_check(obj) try: @@ -1995,7 +2649,8 @@ def no_type_check_decorator(decorator): This wraps the decorator with something that wraps the decorated function in @no_type_check. """ - + import warnings + warnings._deprecated("typing.no_type_check_decorator", remove=(3, 15)) @functools.wraps(decorator) def wrapped_decorator(*args, **kwds): func = decorator(*args, **kwds) @@ -2014,63 +2669,107 @@ def _overload_dummy(*args, **kwds): "by an implementation that is not @overload-ed.") +# {module: {qualname: {firstlineno: func}}} +_overload_registry = defaultdict(functools.partial(defaultdict, dict)) + + def overload(func): """Decorator for overloaded functions/methods. In a stub file, place two or more stub definitions for the same - function in a row, each decorated with @overload. For example: + function in a row, each decorated with @overload. + + For example:: - @overload - def utf8(value: None) -> None: ... - @overload - def utf8(value: bytes) -> bytes: ... - @overload - def utf8(value: str) -> bytes: ... + @overload + def utf8(value: None) -> None: ... + @overload + def utf8(value: bytes) -> bytes: ... + @overload + def utf8(value: str) -> bytes: ... In a non-stub file (i.e. a regular .py file), do the same but follow it with an implementation. The implementation should *not* - be decorated with @overload. For example: - - @overload - def utf8(value: None) -> None: ... - @overload - def utf8(value: bytes) -> bytes: ... - @overload - def utf8(value: str) -> bytes: ... - def utf8(value): - # implementation goes here + be decorated with @overload:: + + @overload + def utf8(value: None) -> None: ... + @overload + def utf8(value: bytes) -> bytes: ... + @overload + def utf8(value: str) -> bytes: ... + def utf8(value): + ... # implementation goes here + + The overloads for a function can be retrieved at runtime using the + get_overloads() function. """ + # classmethod and staticmethod + f = getattr(func, "__func__", func) + try: + _overload_registry[f.__module__][f.__qualname__][f.__code__.co_firstlineno] = func + except AttributeError: + # Not a normal function; ignore. + pass return _overload_dummy +def get_overloads(func): + """Return all defined overloads for *func* as a sequence.""" + # classmethod and staticmethod + f = getattr(func, "__func__", func) + if f.__module__ not in _overload_registry: + return [] + mod_dict = _overload_registry[f.__module__] + if f.__qualname__ not in mod_dict: + return [] + return list(mod_dict[f.__qualname__].values()) + + +def clear_overloads(): + """Clear all overloads in the registry.""" + _overload_registry.clear() + + def final(f): - """A decorator to indicate final methods and final classes. + """Decorator to indicate final methods and final classes. Use this decorator to indicate to type checkers that the decorated method cannot be overridden, and decorated class cannot be subclassed. - For example: - - class Base: - @final - def done(self) -> None: - ... - class Sub(Base): - def done(self) -> None: # Error reported by type checker + + For example:: + + class Base: + @final + def done(self) -> None: + ... + class Sub(Base): + def done(self) -> None: # Error reported by type checker ... - @final - class Leaf: - ... - class Other(Leaf): # Error reported by type checker - ... + @final + class Leaf: + ... + class Other(Leaf): # Error reported by type checker + ... - There is no runtime checking of these properties. + There is no runtime checking of these properties. The decorator + attempts to set the ``__final__`` attribute to ``True`` on the decorated + object to allow runtime introspection. """ + try: + f.__final__ = True + except (AttributeError, TypeError): + # Skip the attribute silently if it is not writable. + # AttributeError happens if the object has __slots__ or a + # read-only property, TypeError if it's a builtin class. + pass return f -# Some unconstrained type variables. These are used by the container types. -# (These are not for export.) +# Some unconstrained type variables. These were initially used by the container types. +# They were never meant for export and are now unused, but we keep them around to +# avoid breaking compatibility with users who import them. T = TypeVar('T') # Any type. KT = TypeVar('KT') # Key type. VT = TypeVar('VT') # Value type. @@ -2081,6 +2780,7 @@ class Other(Leaf): # Error reported by type checker # Internal type variable used for Type[]. CT_co = TypeVar('CT_co', covariant=True, bound=type) + # A useful type variable with constraints. This represents string types. # (This one *is* for export!) AnyStr = TypeVar('AnyStr', bytes, str) @@ -2102,13 +2802,17 @@ class Other(Leaf): # Error reported by type checker Collection = _alias(collections.abc.Collection, 1) Callable = _CallableType(collections.abc.Callable, 2) Callable.__doc__ = \ - """Callable type; Callable[[int], str] is a function of (int) -> str. + """Deprecated alias to collections.abc.Callable. + + Callable[[int], str] signifies a function that takes a single + parameter of type int and returns a str. The subscription syntax must always be used with exactly two - values: the argument list and the return type. The argument list - must be a list of types or ellipsis; the return type must be a single type. + values: the argument list and the return type. + The argument list must be a list of types, a ParamSpec, + Concatenate or ellipsis. The return type must be a single type. - There is no syntax to indicate optional or keyword arguments, + There is no syntax to indicate optional or keyword arguments; such function types are rarely used as callback types. """ AbstractSet = _alias(collections.abc.Set, 1, name='AbstractSet') @@ -2118,11 +2822,15 @@ class Other(Leaf): # Error reported by type checker MutableMapping = _alias(collections.abc.MutableMapping, 2) Sequence = _alias(collections.abc.Sequence, 1) MutableSequence = _alias(collections.abc.MutableSequence, 1) -ByteString = _alias(collections.abc.ByteString, 0) # Not generic +ByteString = _DeprecatedGenericAlias( + collections.abc.ByteString, 0, removal_version=(3, 14) # Not generic. +) # Tuple accepts variable number of parameters. Tuple = _TupleType(tuple, -1, inst=False, name='Tuple') Tuple.__doc__ = \ - """Tuple type; Tuple[X, Y] is the cross-product type of X and Y. + """Deprecated alias to builtins.tuple. + + Tuple[X, Y] is the cross-product type of X and Y. Example: Tuple[T1, T2] is a tuple of two elements corresponding to type variables T1 and T2. Tuple[int, float, str] is a tuple @@ -2138,36 +2846,34 @@ class Other(Leaf): # Error reported by type checker KeysView = _alias(collections.abc.KeysView, 1) ItemsView = _alias(collections.abc.ItemsView, 2) ValuesView = _alias(collections.abc.ValuesView, 1) -ContextManager = _alias(contextlib.AbstractContextManager, 1, name='ContextManager') -AsyncContextManager = _alias(contextlib.AbstractAsyncContextManager, 1, name='AsyncContextManager') Dict = _alias(dict, 2, inst=False, name='Dict') DefaultDict = _alias(collections.defaultdict, 2, name='DefaultDict') OrderedDict = _alias(collections.OrderedDict, 2) Counter = _alias(collections.Counter, 1) ChainMap = _alias(collections.ChainMap, 2) -Generator = _alias(collections.abc.Generator, 3) -AsyncGenerator = _alias(collections.abc.AsyncGenerator, 2) +Generator = _alias(collections.abc.Generator, 3, defaults=(types.NoneType, types.NoneType)) +AsyncGenerator = _alias(collections.abc.AsyncGenerator, 2, defaults=(types.NoneType,)) Type = _alias(type, 1, inst=False, name='Type') Type.__doc__ = \ - """A special construct usable to annotate class objects. + """Deprecated alias to builtins.type. + builtins.type or typing.Type can be used to annotate class objects. For example, suppose we have the following classes:: - class User: ... # Abstract base for User classes - class BasicUser(User): ... - class ProUser(User): ... - class TeamUser(User): ... + class User: ... # Abstract base for User classes + class BasicUser(User): ... + class ProUser(User): ... + class TeamUser(User): ... And a function that takes a class argument that's a subclass of User and returns an instance of the corresponding class:: - U = TypeVar('U', bound=User) - def new_user(user_class: Type[U]) -> U: - user = user_class() - # (Here we could write the user object to a database) - return user + def new_user[U](user_class: Type[U]) -> U: + user = user_class() + # (Here we could write the user object to a database) + return user - joe = new_user(BasicUser) + joe = new_user(BasicUser) At this point the type checker knows that joe has type BasicUser. """ @@ -2176,6 +2882,7 @@ def new_user(user_class: Type[U]) -> U: @runtime_checkable class SupportsInt(Protocol): """An ABC with one abstract method __int__.""" + __slots__ = () @abstractmethod @@ -2186,6 +2893,7 @@ def __int__(self) -> int: @runtime_checkable class SupportsFloat(Protocol): """An ABC with one abstract method __float__.""" + __slots__ = () @abstractmethod @@ -2196,6 +2904,7 @@ def __float__(self) -> float: @runtime_checkable class SupportsComplex(Protocol): """An ABC with one abstract method __complex__.""" + __slots__ = () @abstractmethod @@ -2206,6 +2915,7 @@ def __complex__(self) -> complex: @runtime_checkable class SupportsBytes(Protocol): """An ABC with one abstract method __bytes__.""" + __slots__ = () @abstractmethod @@ -2216,6 +2926,7 @@ def __bytes__(self) -> bytes: @runtime_checkable class SupportsIndex(Protocol): """An ABC with one abstract method __index__.""" + __slots__ = () @abstractmethod @@ -2224,22 +2935,24 @@ def __index__(self) -> int: @runtime_checkable -class SupportsAbs(Protocol[T_co]): +class SupportsAbs[T](Protocol): """An ABC with one abstract method __abs__ that is covariant in its return type.""" + __slots__ = () @abstractmethod - def __abs__(self) -> T_co: + def __abs__(self) -> T: pass @runtime_checkable -class SupportsRound(Protocol[T_co]): +class SupportsRound[T](Protocol): """An ABC with one abstract method __round__ that is covariant in its return type.""" + __slots__ = () @abstractmethod - def __round__(self, ndigits: int = 0) -> T_co: + def __round__(self, ndigits: int = 0) -> T: pass @@ -2262,9 +2975,13 @@ def _make_nmtuple(name, types, module, defaults = ()): class NamedTupleMeta(type): - def __new__(cls, typename, bases, ns): - assert bases[0] is _NamedTuple + assert _NamedTuple in bases + for base in bases: + if base is not _NamedTuple and base is not Generic: + raise TypeError( + 'can only inherit from a NamedTuple type and Generic') + bases = tuple(tuple if base is _NamedTuple else base for base in bases) types = ns.get('__annotations__', {}) default_names = [] for field_name in types: @@ -2278,19 +2995,40 @@ def __new__(cls, typename, bases, ns): nm_tpl = _make_nmtuple(typename, types.items(), defaults=[ns[n] for n in default_names], module=ns['__module__']) + nm_tpl.__bases__ = bases + if Generic in bases: + class_getitem = _generic_class_getitem + nm_tpl.__class_getitem__ = classmethod(class_getitem) # update from user namespace without overriding special namedtuple attributes - for key in ns: + for key, val in ns.items(): if key in _prohibited: raise AttributeError("Cannot overwrite NamedTuple attribute " + key) - elif key not in _special and key not in nm_tpl._fields: - setattr(nm_tpl, key, ns[key]) + elif key not in _special: + if key not in nm_tpl._fields: + setattr(nm_tpl, key, val) + try: + set_name = type(val).__set_name__ + except AttributeError: + pass + else: + try: + set_name(val, nm_tpl, key) + except BaseException as e: + e.add_note( + f"Error calling __set_name__ on {type(val).__name__!r} " + f"instance {key!r} in {typename!r}" + ) + raise + + if Generic in bases: + nm_tpl.__init_subclass__() return nm_tpl -def NamedTuple(typename, fields=None, /, **kwargs): +def NamedTuple(typename, fields=_sentinel, /, **kwargs): """Typed version of namedtuple. - Usage in Python versions >= 3.6:: + Usage:: class Employee(NamedTuple): name: str @@ -2303,39 +3041,86 @@ class Employee(NamedTuple): The resulting class has an extra __annotations__ attribute, giving a dict that maps field names to types. (The field names are also in the _fields attribute, which is part of the namedtuple API.) - Alternative equivalent keyword syntax is also accepted:: - - Employee = NamedTuple('Employee', name=str, id=int) - - In Python versions <= 3.5 use:: + An alternative equivalent functional syntax is also accepted:: Employee = NamedTuple('Employee', [('name', str), ('id', int)]) """ - if fields is None: - fields = kwargs.items() + if fields is _sentinel: + if kwargs: + deprecated_thing = "Creating NamedTuple classes using keyword arguments" + deprecation_msg = ( + "{name} is deprecated and will be disallowed in Python {remove}. " + "Use the class-based or functional syntax instead." + ) + else: + deprecated_thing = "Failing to pass a value for the 'fields' parameter" + example = f"`{typename} = NamedTuple({typename!r}, [])`" + deprecation_msg = ( + "{name} is deprecated and will be disallowed in Python {remove}. " + "To create a NamedTuple class with 0 fields " + "using the functional syntax, " + "pass an empty list, e.g. " + ) + example + "." + elif fields is None: + if kwargs: + raise TypeError( + "Cannot pass `None` as the 'fields' parameter " + "and also specify fields using keyword arguments" + ) + else: + deprecated_thing = "Passing `None` as the 'fields' parameter" + example = f"`{typename} = NamedTuple({typename!r}, [])`" + deprecation_msg = ( + "{name} is deprecated and will be disallowed in Python {remove}. " + "To create a NamedTuple class with 0 fields " + "using the functional syntax, " + "pass an empty list, e.g. " + ) + example + "." elif kwargs: raise TypeError("Either list of fields or keywords" " can be provided to NamedTuple, not both") - try: - module = sys._getframe(1).f_globals.get('__name__', '__main__') - except (AttributeError, ValueError): - module = None - return _make_nmtuple(typename, fields, module=module) + if fields is _sentinel or fields is None: + import warnings + warnings._deprecated(deprecated_thing, message=deprecation_msg, remove=(3, 15)) + fields = kwargs.items() + nt = _make_nmtuple(typename, fields, module=_caller()) + nt.__orig_bases__ = (NamedTuple,) + return nt _NamedTuple = type.__new__(NamedTupleMeta, 'NamedTuple', (), {}) def _namedtuple_mro_entries(bases): - if len(bases) > 1: - raise TypeError("Multiple inheritance with NamedTuple is not supported") - assert bases[0] is NamedTuple + assert NamedTuple in bases return (_NamedTuple,) NamedTuple.__mro_entries__ = _namedtuple_mro_entries +def _get_typeddict_qualifiers(annotation_type): + while True: + annotation_origin = get_origin(annotation_type) + if annotation_origin is Annotated: + annotation_args = get_args(annotation_type) + if annotation_args: + annotation_type = annotation_args[0] + else: + break + elif annotation_origin is Required: + yield Required + (annotation_type,) = get_args(annotation_type) + elif annotation_origin is NotRequired: + yield NotRequired + (annotation_type,) = get_args(annotation_type) + elif annotation_origin is ReadOnly: + yield ReadOnly + (annotation_type,) = get_args(annotation_type) + else: + break + + class _TypedDictMeta(type): def __new__(cls, name, bases, ns, total=True): - """Create new typed dict class object. + """Create a new typed dict class object. This method is called when TypedDict is subclassed, or when TypedDict is instantiated. This way @@ -2343,14 +3128,22 @@ def __new__(cls, name, bases, ns, total=True): Subclasses and instances of TypedDict return actual dictionaries. """ for base in bases: - if type(base) is not _TypedDictMeta: + if type(base) is not _TypedDictMeta and base is not Generic: raise TypeError('cannot inherit from both a TypedDict type ' 'and a non-TypedDict base class') - tp_dict = type.__new__(_TypedDictMeta, name, (dict,), ns) + + if any(issubclass(b, Generic) for b in bases): + generic_base = (Generic,) + else: + generic_base = () + + tp_dict = type.__new__(_TypedDictMeta, name, (*generic_base, dict), ns) + + if not hasattr(tp_dict, '__orig_bases__'): + tp_dict.__orig_bases__ = bases annotations = {} own_annotations = ns.get('__annotations__', {}) - own_annotation_keys = set(own_annotations.keys()) msg = "TypedDict('Name', {f0: t0, f1: t1, ...}); each t must be a type" own_annotations = { n: _type_check(tp, msg, module=tp_dict.__module__) @@ -2358,23 +3151,61 @@ def __new__(cls, name, bases, ns, total=True): } required_keys = set() optional_keys = set() + readonly_keys = set() + mutable_keys = set() for base in bases: annotations.update(base.__dict__.get('__annotations__', {})) - required_keys.update(base.__dict__.get('__required_keys__', ())) - optional_keys.update(base.__dict__.get('__optional_keys__', ())) + + base_required = base.__dict__.get('__required_keys__', set()) + required_keys |= base_required + optional_keys -= base_required + + base_optional = base.__dict__.get('__optional_keys__', set()) + required_keys -= base_optional + optional_keys |= base_optional + + readonly_keys.update(base.__dict__.get('__readonly_keys__', ())) + mutable_keys.update(base.__dict__.get('__mutable_keys__', ())) annotations.update(own_annotations) - if total: - required_keys.update(own_annotation_keys) - else: - optional_keys.update(own_annotation_keys) + for annotation_key, annotation_type in own_annotations.items(): + qualifiers = set(_get_typeddict_qualifiers(annotation_type)) + if Required in qualifiers: + is_required = True + elif NotRequired in qualifiers: + is_required = False + else: + is_required = total + if is_required: + required_keys.add(annotation_key) + optional_keys.discard(annotation_key) + else: + optional_keys.add(annotation_key) + required_keys.discard(annotation_key) + + if ReadOnly in qualifiers: + if annotation_key in mutable_keys: + raise TypeError( + f"Cannot override mutable key {annotation_key!r}" + " with read-only key" + ) + readonly_keys.add(annotation_key) + else: + mutable_keys.add(annotation_key) + readonly_keys.discard(annotation_key) + + assert required_keys.isdisjoint(optional_keys), ( + f"Required keys overlap with optional keys in {name}:" + f" {required_keys=}, {optional_keys=}" + ) tp_dict.__annotations__ = annotations tp_dict.__required_keys__ = frozenset(required_keys) tp_dict.__optional_keys__ = frozenset(optional_keys) - if not hasattr(tp_dict, '__total__'): - tp_dict.__total__ = total + tp_dict.__readonly_keys__ = frozenset(readonly_keys) + tp_dict.__mutable_keys__ = frozenset(mutable_keys) + tp_dict.__total__ = total return tp_dict __call__ = dict # static method @@ -2386,72 +3217,152 @@ def __subclasscheck__(cls, other): __instancecheck__ = __subclasscheck__ -def TypedDict(typename, fields=None, /, *, total=True, **kwargs): +def TypedDict(typename, fields=_sentinel, /, *, total=True): """A simple typed namespace. At runtime it is equivalent to a plain dict. - TypedDict creates a dictionary type that expects all of its + TypedDict creates a dictionary type such that a type checker will expect all instances to have a certain set of keys, where each key is associated with a value of a consistent type. This expectation - is not checked at runtime but is only enforced by type checkers. - Usage:: - - class Point2D(TypedDict): - x: int - y: int - label: str - - a: Point2D = {'x': 1, 'y': 2, 'label': 'good'} # OK - b: Point2D = {'z': 3, 'label': 'bad'} # Fails type check - - assert Point2D(x=1, y=2, label='first') == dict(x=1, y=2, label='first') + is not checked at runtime. The type info can be accessed via the Point2D.__annotations__ dict, and the Point2D.__required_keys__ and Point2D.__optional_keys__ frozensets. - TypedDict supports two additional equivalent forms:: + TypedDict supports an additional equivalent form:: - Point2D = TypedDict('Point2D', x=int, y=int, label=str) Point2D = TypedDict('Point2D', {'x': int, 'y': int, 'label': str}) By default, all keys must be present in a TypedDict. It is possible - to override this by specifying totality. - Usage:: + to override this by specifying totality:: - class point2D(TypedDict, total=False): + class Point2D(TypedDict, total=False): x: int y: int - This means that a point2D TypedDict can have any of the keys omitted.A type + This means that a Point2D TypedDict can have any of the keys omitted. A type checker is only expected to support a literal False or True as the value of the total argument. True is the default, and makes all items defined in the class body be required. - The class syntax is only supported in Python 3.6+, while two other - syntax forms work for Python 2.7 and 3.2+ + The Required and NotRequired special forms can also be used to mark + individual keys as being required or not required:: + + class Point2D(TypedDict): + x: int # the "x" key must always be present (Required is the default) + y: NotRequired[int] # the "y" key can be omitted + + See PEP 655 for more details on Required and NotRequired. + + The ReadOnly special form can be used + to mark individual keys as immutable for type checkers:: + + class DatabaseUser(TypedDict): + id: ReadOnly[int] # the "id" key must not be modified + username: str # the "username" key can be changed + """ - if fields is None: - fields = kwargs - elif kwargs: - raise TypeError("TypedDict takes either a dict or keyword arguments," - " but not both") + if fields is _sentinel or fields is None: + import warnings + + if fields is _sentinel: + deprecated_thing = "Failing to pass a value for the 'fields' parameter" + else: + deprecated_thing = "Passing `None` as the 'fields' parameter" + + example = f"`{typename} = TypedDict({typename!r}, {{{{}}}})`" + deprecation_msg = ( + "{name} is deprecated and will be disallowed in Python {remove}. " + "To create a TypedDict class with 0 fields " + "using the functional syntax, " + "pass an empty dictionary, e.g. " + ) + example + "." + warnings._deprecated(deprecated_thing, message=deprecation_msg, remove=(3, 15)) + fields = {} ns = {'__annotations__': dict(fields)} - try: + module = _caller() + if module is not None: # Setting correct module is necessary to make typed dict classes pickleable. - ns['__module__'] = sys._getframe(1).f_globals.get('__name__', '__main__') - except (AttributeError, ValueError): - pass + ns['__module__'] = module - return _TypedDictMeta(typename, (), ns, total=total) + td = _TypedDictMeta(typename, (), ns, total=total) + td.__orig_bases__ = (TypedDict,) + return td _TypedDict = type.__new__(_TypedDictMeta, 'TypedDict', (), {}) TypedDict.__mro_entries__ = lambda bases: (_TypedDict,) +@_SpecialForm +def Required(self, parameters): + """Special typing construct to mark a TypedDict key as required. + + This is mainly useful for total=False TypedDicts. + + For example:: + + class Movie(TypedDict, total=False): + title: Required[str] + year: int + + m = Movie( + title='The Matrix', # typechecker error if key is omitted + year=1999, + ) + + There is no runtime checking that a required key is actually provided + when instantiating a related TypedDict. + """ + item = _type_check(parameters, f'{self._name} accepts only a single type.') + return _GenericAlias(self, (item,)) + + +@_SpecialForm +def NotRequired(self, parameters): + """Special typing construct to mark a TypedDict key as potentially missing. + + For example:: + + class Movie(TypedDict): + title: str + year: NotRequired[int] + + m = Movie( + title='The Matrix', # typechecker error if key is omitted + year=1999, + ) + """ + item = _type_check(parameters, f'{self._name} accepts only a single type.') + return _GenericAlias(self, (item,)) + + +@_SpecialForm +def ReadOnly(self, parameters): + """A special typing construct to mark an item of a TypedDict as read-only. + + For example:: + + class Movie(TypedDict): + title: ReadOnly[str] + year: int + + def mutate_movie(m: Movie) -> None: + m["year"] = 1992 # allowed + m["title"] = "The Matrix" # typechecker error + + There is no runtime checking for this property. + """ + item = _type_check(parameters, f'{self._name} accepts only a single type.') + return _GenericAlias(self, (item,)) + + class NewType: - """NewType creates simple unique types with almost zero - runtime overhead. NewType(name, tp) is considered a subtype of tp + """NewType creates simple unique types with almost zero runtime overhead. + + NewType(name, tp) is considered a subtype of tp by static type checkers. At runtime, NewType(name, tp) returns - a dummy callable that simply returns its argument. Usage:: + a dummy callable that simply returns its argument. + + Usage:: UserId = NewType('UserId', int) @@ -2466,6 +3377,8 @@ def name_by_id(user_id: UserId) -> str: num = UserId(5) + 1 # type: int """ + __call__ = _idfunc + def __init__(self, name, tp): self.__qualname__ = name if '.' in name: @@ -2476,12 +3389,24 @@ def __init__(self, name, tp): if def_mod != 'typing': self.__module__ = def_mod + def __mro_entries__(self, bases): + # We defined __mro_entries__ to get a better error message + # if a user attempts to subclass a NewType instance. bpo-46170 + superclass_name = self.__name__ + + class Dummy: + def __init_subclass__(cls): + subclass_name = cls.__name__ + raise TypeError( + f"Cannot subclass an instance of NewType. Perhaps you were looking for: " + f"`{subclass_name} = NewType({subclass_name!r}, {superclass_name})`" + ) + + return (Dummy,) + def __repr__(self): return f'{self.__module__}.{self.__qualname__}' - def __call__(self, x): - return x - def __reduce__(self): return self.__qualname__ @@ -2648,28 +3573,205 @@ def __enter__(self) -> 'TextIO': pass -class io: - """Wrapper namespace for IO generic classes.""" +def reveal_type[T](obj: T, /) -> T: + """Ask a static type checker to reveal the inferred type of an expression. + + When a static type checker encounters a call to ``reveal_type()``, + it will emit the inferred type of the argument:: + + x: int = 1 + reveal_type(x) + + Running a static type checker (e.g., mypy) on this example + will produce output similar to 'Revealed type is "builtins.int"'. - __all__ = ['IO', 'TextIO', 'BinaryIO'] - IO = IO - TextIO = TextIO - BinaryIO = BinaryIO + At runtime, the function prints the runtime type of the + argument and returns the argument unchanged. + """ + print(f"Runtime type is {type(obj).__name__!r}", file=sys.stderr) + return obj + + +class _IdentityCallable(Protocol): + def __call__[T](self, arg: T, /) -> T: + ... + + +def dataclass_transform( + *, + eq_default: bool = True, + order_default: bool = False, + kw_only_default: bool = False, + frozen_default: bool = False, + field_specifiers: tuple[type[Any] | Callable[..., Any], ...] = (), + **kwargs: Any, +) -> _IdentityCallable: + """Decorator to mark an object as providing dataclass-like behaviour. + + The decorator can be applied to a function, class, or metaclass. + + Example usage with a decorator function:: + + @dataclass_transform() + def create_model[T](cls: type[T]) -> type[T]: + ... + return cls + + @create_model + class CustomerModel: + id: int + name: str + + On a base class:: + + @dataclass_transform() + class ModelBase: ... + + class CustomerModel(ModelBase): + id: int + name: str + + On a metaclass:: + + @dataclass_transform() + class ModelMeta(type): ... + + class ModelBase(metaclass=ModelMeta): ... + class CustomerModel(ModelBase): + id: int + name: str + + The ``CustomerModel`` classes defined above will + be treated by type checkers similarly to classes created with + ``@dataclasses.dataclass``. + For example, type checkers will assume these classes have + ``__init__`` methods that accept ``id`` and ``name``. + + The arguments to this decorator can be used to customize this behavior: + - ``eq_default`` indicates whether the ``eq`` parameter is assumed to be + ``True`` or ``False`` if it is omitted by the caller. + - ``order_default`` indicates whether the ``order`` parameter is + assumed to be True or False if it is omitted by the caller. + - ``kw_only_default`` indicates whether the ``kw_only`` parameter is + assumed to be True or False if it is omitted by the caller. + - ``frozen_default`` indicates whether the ``frozen`` parameter is + assumed to be True or False if it is omitted by the caller. + - ``field_specifiers`` specifies a static list of supported classes + or functions that describe fields, similar to ``dataclasses.field()``. + - Arbitrary other keyword arguments are accepted in order to allow for + possible future extensions. + + At runtime, this decorator records its arguments in the + ``__dataclass_transform__`` attribute on the decorated object. + It has no other runtime effect. + + See PEP 681 for more details. + """ + def decorator(cls_or_fn): + cls_or_fn.__dataclass_transform__ = { + "eq_default": eq_default, + "order_default": order_default, + "kw_only_default": kw_only_default, + "frozen_default": frozen_default, + "field_specifiers": field_specifiers, + "kwargs": kwargs, + } + return cls_or_fn + return decorator -io.__name__ = __name__ + '.io' -sys.modules[io.__name__] = io +# TODO: RUSTPYTHON + +# type _Func = Callable[..., Any] + + +# def override[F: _Func](method: F, /) -> F: +# """Indicate that a method is intended to override a method in a base class. +# +# Usage:: +# +# class Base: +# def method(self) -> None: +# pass +# +# class Child(Base): +# @override +# def method(self) -> None: +# super().method() +# +# When this decorator is applied to a method, the type checker will +# validate that it overrides a method or attribute with the same name on a +# base class. This helps prevent bugs that may occur when a base class is +# changed without an equivalent change to a child class. +# +# There is no runtime checking of this property. The decorator attempts to +# set the ``__override__`` attribute to ``True`` on the decorated object to +# allow runtime introspection. +# +# See PEP 698 for details. +# """ +# try: +# method.__override__ = True +# except (AttributeError, TypeError): +# # Skip the attribute silently if it is not writable. +# # AttributeError happens if the object has __slots__ or a +# # read-only property, TypeError if it's a builtin class. +# pass +# return method + + +def is_protocol(tp: type, /) -> bool: + """Return True if the given type is a Protocol. -Pattern = _alias(stdlib_re.Pattern, 1) -Match = _alias(stdlib_re.Match, 1) + Example:: -class re: - """Wrapper namespace for re type aliases.""" + >>> from typing import Protocol, is_protocol + >>> class P(Protocol): + ... def a(self) -> str: ... + ... b: int + >>> is_protocol(P) + True + >>> is_protocol(int) + False + """ + return ( + isinstance(tp, type) + and getattr(tp, '_is_protocol', False) + and tp != Protocol + ) + +def get_protocol_members(tp: type, /) -> frozenset[str]: + """Return the set of members defined in a Protocol. + Raise a TypeError for arguments that are not Protocols. + """ + if not is_protocol(tp): + raise TypeError(f'{tp!r} is not a Protocol') + return frozenset(tp.__protocol_attrs__) - __all__ = ['Pattern', 'Match'] - Pattern = Pattern - Match = Match +def __getattr__(attr): + """Improve the import time of the typing module. -re.__name__ = __name__ + '.re' -sys.modules[re.__name__] = re + Soft-deprecated objects which are costly to create + are only created on-demand here. + """ + if attr in {"Pattern", "Match"}: + import re + obj = _alias(getattr(re, attr), 1) + elif attr in {"ContextManager", "AsyncContextManager"}: + import contextlib + obj = _alias(getattr(contextlib, f"Abstract{attr}"), 2, name=attr, defaults=(bool | None,)) + elif attr == "_collect_parameters": + import warnings + + depr_message = ( + "The private _collect_parameters function is deprecated and will be" + " removed in a future version of Python. Any use of private functions" + " is discouraged and may break in the future." + ) + warnings.warn(depr_message, category=DeprecationWarning, stacklevel=2) + obj = _collect_type_parameters + else: + raise AttributeError(f"module {__name__!r} has no attribute {attr!r}") + globals()[attr] = obj + return obj diff --git a/Lib/uu.py b/Lib/uu.py deleted file mode 100755 index d68d29374a..0000000000 --- a/Lib/uu.py +++ /dev/null @@ -1,199 +0,0 @@ -#! /usr/bin/env python3 - -# Copyright 1994 by Lance Ellinghouse -# Cathedral City, California Republic, United States of America. -# All Rights Reserved -# Permission to use, copy, modify, and distribute this software and its -# documentation for any purpose and without fee is hereby granted, -# provided that the above copyright notice appear in all copies and that -# both that copyright notice and this permission notice appear in -# supporting documentation, and that the name of Lance Ellinghouse -# not be used in advertising or publicity pertaining to distribution -# of the software without specific, written prior permission. -# LANCE ELLINGHOUSE DISCLAIMS ALL WARRANTIES WITH REGARD TO -# THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND -# FITNESS, IN NO EVENT SHALL LANCE ELLINGHOUSE CENTRUM BE LIABLE -# FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN -# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT -# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. -# -# Modified by Jack Jansen, CWI, July 1995: -# - Use binascii module to do the actual line-by-line conversion -# between ascii and binary. This results in a 1000-fold speedup. The C -# version is still 5 times faster, though. -# - Arguments more compliant with python standard - -"""Implementation of the UUencode and UUdecode functions. - -encode(in_file, out_file [,name, mode]) -decode(in_file [, out_file, mode]) -""" - -import binascii -import os -import sys - -__all__ = ["Error", "encode", "decode"] - -class Error(Exception): - pass - -def encode(in_file, out_file, name=None, mode=None): - """Uuencode file""" - # - # If in_file is a pathname open it and change defaults - # - opened_files = [] - try: - if in_file == '-': - in_file = sys.stdin.buffer - elif isinstance(in_file, str): - if name is None: - name = os.path.basename(in_file) - if mode is None: - try: - mode = os.stat(in_file).st_mode - except AttributeError: - pass - in_file = open(in_file, 'rb') - opened_files.append(in_file) - # - # Open out_file if it is a pathname - # - if out_file == '-': - out_file = sys.stdout.buffer - elif isinstance(out_file, str): - out_file = open(out_file, 'wb') - opened_files.append(out_file) - # - # Set defaults for name and mode - # - if name is None: - name = '-' - if mode is None: - mode = 0o666 - # - # Write the data - # - out_file.write(('begin %o %s\n' % ((mode & 0o777), name)).encode("ascii")) - data = in_file.read(45) - while len(data) > 0: - out_file.write(binascii.b2a_uu(data)) - data = in_file.read(45) - out_file.write(b' \nend\n') - finally: - for f in opened_files: - f.close() - - -def decode(in_file, out_file=None, mode=None, quiet=False): - """Decode uuencoded file""" - # - # Open the input file, if needed. - # - opened_files = [] - if in_file == '-': - in_file = sys.stdin.buffer - elif isinstance(in_file, str): - in_file = open(in_file, 'rb') - opened_files.append(in_file) - - try: - # - # Read until a begin is encountered or we've exhausted the file - # - while True: - hdr = in_file.readline() - if not hdr: - raise Error('No valid begin line found in input file') - if not hdr.startswith(b'begin'): - continue - hdrfields = hdr.split(b' ', 2) - if len(hdrfields) == 3 and hdrfields[0] == b'begin': - try: - int(hdrfields[1], 8) - break - except ValueError: - pass - if out_file is None: - # If the filename isn't ASCII, what's up with that?!? - out_file = hdrfields[2].rstrip(b' \t\r\n\f').decode("ascii") - if os.path.exists(out_file): - raise Error('Cannot overwrite existing file: %s' % out_file) - if mode is None: - mode = int(hdrfields[1], 8) - # - # Open the output file - # - if out_file == '-': - out_file = sys.stdout.buffer - elif isinstance(out_file, str): - fp = open(out_file, 'wb') - try: - os.path.chmod(out_file, mode) - except AttributeError: - pass - out_file = fp - opened_files.append(out_file) - # - # Main decoding loop - # - s = in_file.readline() - while s and s.strip(b' \t\r\n\f') != b'end': - try: - data = binascii.a2b_uu(s) - except binascii.Error as v: - # Workaround for broken uuencoders by /Fredrik Lundh - nbytes = (((s[0]-32) & 63) * 4 + 5) // 3 - data = binascii.a2b_uu(s[:nbytes]) - if not quiet: - sys.stderr.write("Warning: %s\n" % v) - out_file.write(data) - s = in_file.readline() - if not s: - raise Error('Truncated input file') - finally: - for f in opened_files: - f.close() - -def test(): - """uuencode/uudecode main program""" - - import optparse - parser = optparse.OptionParser(usage='usage: %prog [-d] [-t] [input [output]]') - parser.add_option('-d', '--decode', dest='decode', help='Decode (instead of encode)?', default=False, action='store_true') - parser.add_option('-t', '--text', dest='text', help='data is text, encoded format unix-compatible text?', default=False, action='store_true') - - (options, args) = parser.parse_args() - if len(args) > 2: - parser.error('incorrect number of arguments') - sys.exit(1) - - # Use the binary streams underlying stdin/stdout - input = sys.stdin.buffer - output = sys.stdout.buffer - if len(args) > 0: - input = args[0] - if len(args) > 1: - output = args[1] - - if options.decode: - if options.text: - if isinstance(output, str): - output = open(output, 'wb') - else: - print(sys.argv[0], ': cannot do -t to stdout') - sys.exit(1) - decode(input, output) - else: - if options.text: - if isinstance(input, str): - input = open(input, 'rb') - else: - print(sys.argv[0], ': cannot do -t from stdin') - sys.exit(1) - encode(input, output) - -if __name__ == '__main__': - test() diff --git a/Lib/wave.py b/Lib/wave.py new file mode 100644 index 0000000000..a34af244c3 --- /dev/null +++ b/Lib/wave.py @@ -0,0 +1,663 @@ +"""Stuff to parse WAVE files. + +Usage. + +Reading WAVE files: + f = wave.open(file, 'r') +where file is either the name of a file or an open file pointer. +The open file pointer must have methods read(), seek(), and close(). +When the setpos() and rewind() methods are not used, the seek() +method is not necessary. + +This returns an instance of a class with the following public methods: + getnchannels() -- returns number of audio channels (1 for + mono, 2 for stereo) + getsampwidth() -- returns sample width in bytes + getframerate() -- returns sampling frequency + getnframes() -- returns number of audio frames + getcomptype() -- returns compression type ('NONE' for linear samples) + getcompname() -- returns human-readable version of + compression type ('not compressed' linear samples) + getparams() -- returns a namedtuple consisting of all of the + above in the above order + getmarkers() -- returns None (for compatibility with the + old aifc module) + getmark(id) -- raises an error since the mark does not + exist (for compatibility with the old aifc module) + readframes(n) -- returns at most n frames of audio + rewind() -- rewind to the beginning of the audio stream + setpos(pos) -- seek to the specified position + tell() -- return the current position + close() -- close the instance (make it unusable) +The position returned by tell() and the position given to setpos() +are compatible and have nothing to do with the actual position in the +file. +The close() method is called automatically when the class instance +is destroyed. + +Writing WAVE files: + f = wave.open(file, 'w') +where file is either the name of a file or an open file pointer. +The open file pointer must have methods write(), tell(), seek(), and +close(). + +This returns an instance of a class with the following public methods: + setnchannels(n) -- set the number of channels + setsampwidth(n) -- set the sample width + setframerate(n) -- set the frame rate + setnframes(n) -- set the number of frames + setcomptype(type, name) + -- set the compression type and the + human-readable compression type + setparams(tuple) + -- set all parameters at once + tell() -- return current position in output file + writeframesraw(data) + -- write audio frames without patching up the + file header + writeframes(data) + -- write audio frames and patch up the file header + close() -- patch up the file header and close the + output file +You should set the parameters before the first writeframesraw or +writeframes. The total number of frames does not need to be set, +but when it is set to the correct value, the header does not have to +be patched up. +It is best to first set all parameters, perhaps possibly the +compression type, and then write audio frames using writeframesraw. +When all frames have been written, either call writeframes(b'') or +close() to patch up the sizes in the header. +The close() method is called automatically when the class instance +is destroyed. +""" + +from collections import namedtuple +import builtins +import struct +import sys + + +__all__ = ["open", "Error", "Wave_read", "Wave_write"] + +class Error(Exception): + pass + +WAVE_FORMAT_PCM = 0x0001 +WAVE_FORMAT_EXTENSIBLE = 0xFFFE +# Derived from uuid.UUID("00000001-0000-0010-8000-00aa00389b71").bytes_le +KSDATAFORMAT_SUBTYPE_PCM = b'\x01\x00\x00\x00\x00\x00\x10\x00\x80\x00\x00\xaa\x008\x9bq' + +_array_fmts = None, 'b', 'h', None, 'i' + +_wave_params = namedtuple('_wave_params', + 'nchannels sampwidth framerate nframes comptype compname') + + +def _byteswap(data, width): + swapped_data = bytearray(len(data)) + + for i in range(0, len(data), width): + for j in range(width): + swapped_data[i + width - 1 - j] = data[i + j] + + return bytes(swapped_data) + + +class _Chunk: + def __init__(self, file, align=True, bigendian=True, inclheader=False): + self.closed = False + self.align = align # whether to align to word (2-byte) boundaries + if bigendian: + strflag = '>' + else: + strflag = '<' + self.file = file + self.chunkname = file.read(4) + if len(self.chunkname) < 4: + raise EOFError + try: + self.chunksize = struct.unpack_from(strflag+'L', file.read(4))[0] + except struct.error: + raise EOFError from None + if inclheader: + self.chunksize = self.chunksize - 8 # subtract header + self.size_read = 0 + try: + self.offset = self.file.tell() + except (AttributeError, OSError): + self.seekable = False + else: + self.seekable = True + + def getname(self): + """Return the name (ID) of the current chunk.""" + return self.chunkname + + def close(self): + if not self.closed: + try: + self.skip() + finally: + self.closed = True + + def seek(self, pos, whence=0): + """Seek to specified position into the chunk. + Default position is 0 (start of chunk). + If the file is not seekable, this will result in an error. + """ + + if self.closed: + raise ValueError("I/O operation on closed file") + if not self.seekable: + raise OSError("cannot seek") + if whence == 1: + pos = pos + self.size_read + elif whence == 2: + pos = pos + self.chunksize + if pos < 0 or pos > self.chunksize: + raise RuntimeError + self.file.seek(self.offset + pos, 0) + self.size_read = pos + + def tell(self): + if self.closed: + raise ValueError("I/O operation on closed file") + return self.size_read + + def read(self, size=-1): + """Read at most size bytes from the chunk. + If size is omitted or negative, read until the end + of the chunk. + """ + + if self.closed: + raise ValueError("I/O operation on closed file") + if self.size_read >= self.chunksize: + return b'' + if size < 0: + size = self.chunksize - self.size_read + if size > self.chunksize - self.size_read: + size = self.chunksize - self.size_read + data = self.file.read(size) + self.size_read = self.size_read + len(data) + if self.size_read == self.chunksize and \ + self.align and \ + (self.chunksize & 1): + dummy = self.file.read(1) + self.size_read = self.size_read + len(dummy) + return data + + def skip(self): + """Skip the rest of the chunk. + If you are not interested in the contents of the chunk, + this method should be called so that the file points to + the start of the next chunk. + """ + + if self.closed: + raise ValueError("I/O operation on closed file") + if self.seekable: + try: + n = self.chunksize - self.size_read + # maybe fix alignment + if self.align and (self.chunksize & 1): + n = n + 1 + self.file.seek(n, 1) + self.size_read = self.size_read + n + return + except OSError: + pass + while self.size_read < self.chunksize: + n = min(8192, self.chunksize - self.size_read) + dummy = self.read(n) + if not dummy: + raise EOFError + + +class Wave_read: + """Variables used in this class: + + These variables are available to the user though appropriate + methods of this class: + _file -- the open file with methods read(), close(), and seek() + set through the __init__() method + _nchannels -- the number of audio channels + available through the getnchannels() method + _nframes -- the number of audio frames + available through the getnframes() method + _sampwidth -- the number of bytes per audio sample + available through the getsampwidth() method + _framerate -- the sampling frequency + available through the getframerate() method + _comptype -- the AIFF-C compression type ('NONE' if AIFF) + available through the getcomptype() method + _compname -- the human-readable AIFF-C compression type + available through the getcomptype() method + _soundpos -- the position in the audio stream + available through the tell() method, set through the + setpos() method + + These variables are used internally only: + _fmt_chunk_read -- 1 iff the FMT chunk has been read + _data_seek_needed -- 1 iff positioned correctly in audio + file for readframes() + _data_chunk -- instantiation of a chunk class for the DATA chunk + _framesize -- size of one frame in the file + """ + + def initfp(self, file): + self._convert = None + self._soundpos = 0 + self._file = _Chunk(file, bigendian = 0) + if self._file.getname() != b'RIFF': + raise Error('file does not start with RIFF id') + if self._file.read(4) != b'WAVE': + raise Error('not a WAVE file') + self._fmt_chunk_read = 0 + self._data_chunk = None + while 1: + self._data_seek_needed = 1 + try: + chunk = _Chunk(self._file, bigendian = 0) + except EOFError: + break + chunkname = chunk.getname() + if chunkname == b'fmt ': + self._read_fmt_chunk(chunk) + self._fmt_chunk_read = 1 + elif chunkname == b'data': + if not self._fmt_chunk_read: + raise Error('data chunk before fmt chunk') + self._data_chunk = chunk + self._nframes = chunk.chunksize // self._framesize + self._data_seek_needed = 0 + break + chunk.skip() + if not self._fmt_chunk_read or not self._data_chunk: + raise Error('fmt chunk and/or data chunk missing') + + def __init__(self, f): + self._i_opened_the_file = None + if isinstance(f, str): + f = builtins.open(f, 'rb') + self._i_opened_the_file = f + # else, assume it is an open file object already + try: + self.initfp(f) + except: + if self._i_opened_the_file: + f.close() + raise + + def __del__(self): + self.close() + + def __enter__(self): + return self + + def __exit__(self, *args): + self.close() + + # + # User visible methods. + # + def getfp(self): + return self._file + + def rewind(self): + self._data_seek_needed = 1 + self._soundpos = 0 + + def close(self): + self._file = None + file = self._i_opened_the_file + if file: + self._i_opened_the_file = None + file.close() + + def tell(self): + return self._soundpos + + def getnchannels(self): + return self._nchannels + + def getnframes(self): + return self._nframes + + def getsampwidth(self): + return self._sampwidth + + def getframerate(self): + return self._framerate + + def getcomptype(self): + return self._comptype + + def getcompname(self): + return self._compname + + def getparams(self): + return _wave_params(self.getnchannels(), self.getsampwidth(), + self.getframerate(), self.getnframes(), + self.getcomptype(), self.getcompname()) + + def getmarkers(self): + import warnings + warnings._deprecated("Wave_read.getmarkers", remove=(3, 15)) + return None + + def getmark(self, id): + import warnings + warnings._deprecated("Wave_read.getmark", remove=(3, 15)) + raise Error('no marks') + + def setpos(self, pos): + if pos < 0 or pos > self._nframes: + raise Error('position not in range') + self._soundpos = pos + self._data_seek_needed = 1 + + def readframes(self, nframes): + if self._data_seek_needed: + self._data_chunk.seek(0, 0) + pos = self._soundpos * self._framesize + if pos: + self._data_chunk.seek(pos, 0) + self._data_seek_needed = 0 + if nframes == 0: + return b'' + data = self._data_chunk.read(nframes * self._framesize) + if self._sampwidth != 1 and sys.byteorder == 'big': + data = _byteswap(data, self._sampwidth) + if self._convert and data: + data = self._convert(data) + self._soundpos = self._soundpos + len(data) // (self._nchannels * self._sampwidth) + return data + + # + # Internal methods. + # + + def _read_fmt_chunk(self, chunk): + try: + wFormatTag, self._nchannels, self._framerate, dwAvgBytesPerSec, wBlockAlign = struct.unpack_from(' 4: + raise Error('bad sample width') + self._sampwidth = sampwidth + + def getsampwidth(self): + if not self._sampwidth: + raise Error('sample width not set') + return self._sampwidth + + def setframerate(self, framerate): + if self._datawritten: + raise Error('cannot change parameters after starting to write') + if framerate <= 0: + raise Error('bad frame rate') + self._framerate = int(round(framerate)) + + def getframerate(self): + if not self._framerate: + raise Error('frame rate not set') + return self._framerate + + def setnframes(self, nframes): + if self._datawritten: + raise Error('cannot change parameters after starting to write') + self._nframes = nframes + + def getnframes(self): + return self._nframeswritten + + def setcomptype(self, comptype, compname): + if self._datawritten: + raise Error('cannot change parameters after starting to write') + if comptype not in ('NONE',): + raise Error('unsupported compression type') + self._comptype = comptype + self._compname = compname + + def getcomptype(self): + return self._comptype + + def getcompname(self): + return self._compname + + def setparams(self, params): + nchannels, sampwidth, framerate, nframes, comptype, compname = params + if self._datawritten: + raise Error('cannot change parameters after starting to write') + self.setnchannels(nchannels) + self.setsampwidth(sampwidth) + self.setframerate(framerate) + self.setnframes(nframes) + self.setcomptype(comptype, compname) + + def getparams(self): + if not self._nchannels or not self._sampwidth or not self._framerate: + raise Error('not all parameters set') + return _wave_params(self._nchannels, self._sampwidth, self._framerate, + self._nframes, self._comptype, self._compname) + + def setmark(self, id, pos, name): + import warnings + warnings._deprecated("Wave_write.setmark", remove=(3, 15)) + raise Error('setmark() not supported') + + def getmark(self, id): + import warnings + warnings._deprecated("Wave_write.getmark", remove=(3, 15)) + raise Error('no marks') + + def getmarkers(self): + import warnings + warnings._deprecated("Wave_write.getmarkers", remove=(3, 15)) + return None + + def tell(self): + return self._nframeswritten + + def writeframesraw(self, data): + if not isinstance(data, (bytes, bytearray)): + data = memoryview(data).cast('B') + self._ensure_header_written(len(data)) + nframes = len(data) // (self._sampwidth * self._nchannels) + if self._convert: + data = self._convert(data) + if self._sampwidth != 1 and sys.byteorder == 'big': + data = _byteswap(data, self._sampwidth) + self._file.write(data) + self._datawritten += len(data) + self._nframeswritten = self._nframeswritten + nframes + + def writeframes(self, data): + self.writeframesraw(data) + if self._datalength != self._datawritten: + self._patchheader() + + def close(self): + try: + if self._file: + self._ensure_header_written(0) + if self._datalength != self._datawritten: + self._patchheader() + self._file.flush() + finally: + self._file = None + file = self._i_opened_the_file + if file: + self._i_opened_the_file = None + file.close() + + # + # Internal methods. + # + + def _ensure_header_written(self, datasize): + if not self._headerwritten: + if not self._nchannels: + raise Error('# channels not specified') + if not self._sampwidth: + raise Error('sample width not specified') + if not self._framerate: + raise Error('sampling rate not specified') + self._write_header(datasize) + + def _write_header(self, initlength): + assert not self._headerwritten + self._file.write(b'RIFF') + if not self._nframes: + self._nframes = initlength // (self._nchannels * self._sampwidth) + self._datalength = self._nframes * self._nchannels * self._sampwidth + try: + self._form_length_pos = self._file.tell() + except (AttributeError, OSError): + self._form_length_pos = None + self._file.write(struct.pack(' + # The Links/elinks browsers if shutil.which("links"): register("links", None, GenericBrowser("links")) if shutil.which("elinks"): register("elinks", None, Elinks("elinks")) - # The Lynx browser , + # The Lynx browser , if shutil.which("lynx"): register("lynx", None, GenericBrowser("lynx")) # The w3m browser @@ -613,105 +586,125 @@ def open(self, url, new=0, autoraise=True): return True # -# Platform support for MacOS +# Platform support for macOS # if sys.platform == 'darwin': - # Adapted from patch submitted to SourceForge by Steven J. Burr - class MacOSX(BaseBrowser): - """Launcher class for Aqua browsers on Mac OS X - - Optionally specify a browser name on instantiation. Note that this - will not work for Aqua browsers if the user has moved the application - package after installation. - - If no browser is specified, the default browser, as specified in the - Internet System Preferences panel, will be used. - """ - def __init__(self, name): - self.name = name + class MacOSXOSAScript(BaseBrowser): + def __init__(self, name='default'): + super().__init__(name) def open(self, url, new=0, autoraise=True): sys.audit("webbrowser.open", url) - assert "'" not in url - # hack for local urls - if not ':' in url: - url = 'file:'+url - - # new must be 0 or 1 - new = int(bool(new)) - if self.name == "default": - # User called open, open_new or get without a browser parameter - script = 'open location "%s"' % url.replace('"', '%22') # opens in default browser + url = url.replace('"', '%22') + if self.name == 'default': + script = f'open location "{url}"' # opens in default browser else: - # User called get and chose a browser - if self.name == "OmniWeb": - toWindow = "" - else: - # Include toWindow parameter of OpenURL command for browsers - # that support it. 0 == new window; -1 == existing - toWindow = "toWindow %d" % (new - 1) - cmd = 'OpenURL "%s"' % url.replace('"', '%22') - script = '''tell application "%s" - activate - %s %s - end tell''' % (self.name, cmd, toWindow) - # Open pipe to AppleScript through osascript command + script = f''' + tell application "{self.name}" + activate + open location "{url}" + end + ''' + osapipe = os.popen("osascript", "w") if osapipe is None: return False - # Write script to osascript's stdin + osapipe.write(script) rc = osapipe.close() return not rc - class MacOSXOSAScript(BaseBrowser): - def __init__(self, name): - self._name = name +# +# Platform support for iOS +# +if sys.platform == "ios": + from _ios_support import objc + if objc: + # If objc exists, we know ctypes is also importable. + from ctypes import c_void_p, c_char_p, c_ulong + class IOSBrowser(BaseBrowser): def open(self, url, new=0, autoraise=True): - if self._name == 'default': - script = 'open location "%s"' % url.replace('"', '%22') # opens in default browser - else: - script = ''' - tell application "%s" - activate - open location "%s" - end - '''%(self._name, url.replace('"', '%22')) - - osapipe = os.popen("osascript", "w") - if osapipe is None: + sys.audit("webbrowser.open", url) + # If ctypes isn't available, we can't open a browser + if objc is None: return False - osapipe.write(script) - rc = osapipe.close() - return not rc + # All the messages in this call return object references. + objc.objc_msgSend.restype = c_void_p + + # This is the equivalent of: + # NSString url_string = + # [NSString stringWithCString:url.encode("utf-8") + # encoding:NSUTF8StringEncoding]; + NSString = objc.objc_getClass(b"NSString") + constructor = objc.sel_registerName(b"stringWithCString:encoding:") + objc.objc_msgSend.argtypes = [c_void_p, c_void_p, c_char_p, c_ulong] + url_string = objc.objc_msgSend( + NSString, + constructor, + url.encode("utf-8"), + 4, # NSUTF8StringEncoding = 4 + ) + + # Create an NSURL object representing the URL + # This is the equivalent of: + # NSURL *nsurl = [NSURL URLWithString:url]; + NSURL = objc.objc_getClass(b"NSURL") + urlWithString_ = objc.sel_registerName(b"URLWithString:") + objc.objc_msgSend.argtypes = [c_void_p, c_void_p, c_void_p] + ns_url = objc.objc_msgSend(NSURL, urlWithString_, url_string) + + # Get the shared UIApplication instance + # This code is the equivalent of: + # UIApplication shared_app = [UIApplication sharedApplication] + UIApplication = objc.objc_getClass(b"UIApplication") + sharedApplication = objc.sel_registerName(b"sharedApplication") + objc.objc_msgSend.argtypes = [c_void_p, c_void_p] + shared_app = objc.objc_msgSend(UIApplication, sharedApplication) + + # Open the URL on the shared application + # This code is the equivalent of: + # [shared_app openURL:ns_url + # options:NIL + # completionHandler:NIL]; + openURL_ = objc.sel_registerName(b"openURL:options:completionHandler:") + objc.objc_msgSend.argtypes = [ + c_void_p, c_void_p, c_void_p, c_void_p, c_void_p + ] + # Method returns void + objc.objc_msgSend.restype = None + objc.objc_msgSend(shared_app, openURL_, ns_url, None, None) + return True -def main(): - import getopt - usage = """Usage: %s [-n | -t] url - -n: open new window - -t: open new tab""" % sys.argv[0] - try: - opts, args = getopt.getopt(sys.argv[1:], 'ntd') - except getopt.error as msg: - print(msg, file=sys.stderr) - print(usage, file=sys.stderr) - sys.exit(1) - new_win = 0 - for o, a in opts: - if o == '-n': new_win = 1 - elif o == '-t': new_win = 2 - if len(args) != 1: - print(usage, file=sys.stderr) - sys.exit(1) - - url = args[0] - open(url, new_win) + +def parse_args(arg_list: list[str] | None): + import argparse + parser = argparse.ArgumentParser(description="Open URL in a web browser.") + parser.add_argument("url", help="URL to open") + + group = parser.add_mutually_exclusive_group() + group.add_argument("-n", "--new-window", action="store_const", + const=1, default=0, dest="new_win", + help="open new window") + group.add_argument("-t", "--new-tab", action="store_const", + const=2, default=0, dest="new_win", + help="open new tab") + + args = parser.parse_args(arg_list) + + return args + + +def main(arg_list: list[str] | None = None): + args = parse_args(arg_list) + + open(args.url, args.new_win) print("\a") + if __name__ == "__main__": main() diff --git a/Lib/xdrlib.py b/Lib/xdrlib.py deleted file mode 100644 index d6e1aeb527..0000000000 --- a/Lib/xdrlib.py +++ /dev/null @@ -1,241 +0,0 @@ -"""Implements (a subset of) Sun XDR -- eXternal Data Representation. - -See: RFC 1014 - -""" - -import struct -from io import BytesIO -from functools import wraps - -__all__ = ["Error", "Packer", "Unpacker", "ConversionError"] - -# exceptions -class Error(Exception): - """Exception class for this module. Use: - - except xdrlib.Error as var: - # var has the Error instance for the exception - - Public ivars: - msg -- contains the message - - """ - def __init__(self, msg): - self.msg = msg - def __repr__(self): - return repr(self.msg) - def __str__(self): - return str(self.msg) - - -class ConversionError(Error): - pass - -def raise_conversion_error(function): - """ Wrap any raised struct.errors in a ConversionError. """ - - @wraps(function) - def result(self, value): - try: - return function(self, value) - except struct.error as e: - raise ConversionError(e.args[0]) from None - return result - - -class Packer: - """Pack various data representations into a buffer.""" - - def __init__(self): - self.reset() - - def reset(self): - self.__buf = BytesIO() - - def get_buffer(self): - return self.__buf.getvalue() - # backwards compatibility - get_buf = get_buffer - - @raise_conversion_error - def pack_uint(self, x): - self.__buf.write(struct.pack('>L', x)) - - @raise_conversion_error - def pack_int(self, x): - self.__buf.write(struct.pack('>l', x)) - - pack_enum = pack_int - - def pack_bool(self, x): - if x: self.__buf.write(b'\0\0\0\1') - else: self.__buf.write(b'\0\0\0\0') - - def pack_uhyper(self, x): - try: - self.pack_uint(x>>32 & 0xffffffff) - except (TypeError, struct.error) as e: - raise ConversionError(e.args[0]) from None - try: - self.pack_uint(x & 0xffffffff) - except (TypeError, struct.error) as e: - raise ConversionError(e.args[0]) from None - - pack_hyper = pack_uhyper - - @raise_conversion_error - def pack_float(self, x): - self.__buf.write(struct.pack('>f', x)) - - @raise_conversion_error - def pack_double(self, x): - self.__buf.write(struct.pack('>d', x)) - - def pack_fstring(self, n, s): - if n < 0: - raise ValueError('fstring size must be nonnegative') - data = s[:n] - n = ((n+3)//4)*4 - data = data + (n - len(data)) * b'\0' - self.__buf.write(data) - - pack_fopaque = pack_fstring - - def pack_string(self, s): - n = len(s) - self.pack_uint(n) - self.pack_fstring(n, s) - - pack_opaque = pack_string - pack_bytes = pack_string - - def pack_list(self, list, pack_item): - for item in list: - self.pack_uint(1) - pack_item(item) - self.pack_uint(0) - - def pack_farray(self, n, list, pack_item): - if len(list) != n: - raise ValueError('wrong array size') - for item in list: - pack_item(item) - - def pack_array(self, list, pack_item): - n = len(list) - self.pack_uint(n) - self.pack_farray(n, list, pack_item) - - - -class Unpacker: - """Unpacks various data representations from the given buffer.""" - - def __init__(self, data): - self.reset(data) - - def reset(self, data): - self.__buf = data - self.__pos = 0 - - def get_position(self): - return self.__pos - - def set_position(self, position): - self.__pos = position - - def get_buffer(self): - return self.__buf - - def done(self): - if self.__pos < len(self.__buf): - raise Error('unextracted data remains') - - def unpack_uint(self): - i = self.__pos - self.__pos = j = i+4 - data = self.__buf[i:j] - if len(data) < 4: - raise EOFError - return struct.unpack('>L', data)[0] - - def unpack_int(self): - i = self.__pos - self.__pos = j = i+4 - data = self.__buf[i:j] - if len(data) < 4: - raise EOFError - return struct.unpack('>l', data)[0] - - unpack_enum = unpack_int - - def unpack_bool(self): - return bool(self.unpack_int()) - - def unpack_uhyper(self): - hi = self.unpack_uint() - lo = self.unpack_uint() - return int(hi)<<32 | lo - - def unpack_hyper(self): - x = self.unpack_uhyper() - if x >= 0x8000000000000000: - x = x - 0x10000000000000000 - return x - - def unpack_float(self): - i = self.__pos - self.__pos = j = i+4 - data = self.__buf[i:j] - if len(data) < 4: - raise EOFError - return struct.unpack('>f', data)[0] - - def unpack_double(self): - i = self.__pos - self.__pos = j = i+8 - data = self.__buf[i:j] - if len(data) < 8: - raise EOFError - return struct.unpack('>d', data)[0] - - def unpack_fstring(self, n): - if n < 0: - raise ValueError('fstring size must be nonnegative') - i = self.__pos - j = i + (n+3)//4*4 - if j > len(self.__buf): - raise EOFError - self.__pos = j - return self.__buf[i:i+n] - - unpack_fopaque = unpack_fstring - - def unpack_string(self): - n = self.unpack_uint() - return self.unpack_fstring(n) - - unpack_opaque = unpack_string - unpack_bytes = unpack_string - - def unpack_list(self, unpack_item): - list = [] - while 1: - x = self.unpack_uint() - if x == 0: break - if x != 1: - raise ConversionError('0 or 1 expected, got %r' % (x,)) - item = unpack_item() - list.append(item) - return list - - def unpack_farray(self, n, unpack_item): - list = [] - for i in range(n): - list.append(unpack_item()) - return list - - def unpack_array(self, unpack_item): - n = self.unpack_uint() - return self.unpack_farray(n, unpack_item) diff --git a/README.md b/README.md index 96e201ac17..9d0e8dfc84 100644 --- a/README.md +++ b/README.md @@ -2,7 +2,7 @@ # [RustPython](https://rustpython.github.io/) -A Python-3 (CPython >= 3.12.0) Interpreter written in Rust :snake: :scream: +A Python-3 (CPython >= 3.13.0) Interpreter written in Rust :snake: :scream: :metal:. [![Build Status](https://github.com/RustPython/RustPython/workflows/CI/badge.svg)](https://github.com/RustPython/RustPython/actions?query=workflow%3ACI) @@ -13,7 +13,6 @@ A Python-3 (CPython >= 3.12.0) Interpreter written in Rust :snake: :scream: [![docs.rs](https://docs.rs/rustpython/badge.svg)](https://docs.rs/rustpython/) [![Crates.io](https://img.shields.io/crates/v/rustpython)](https://crates.io/crates/rustpython) [![dependency status](https://deps.rs/crate/rustpython/0.1.1/status.svg)](https://deps.rs/crate/rustpython/0.1.1) -[![WAPM package](https://wapm.io/package/rustpython/badge.svg?style=flat)](https://wapm.io/package/rustpython) [![Open in Gitpod](https://img.shields.io/static/v1?label=Open%20in&message=Gitpod&color=1aa6e4&logo=gitpod)](https://gitpod.io#https://github.com/RustPython/RustPython) ## Usage @@ -32,6 +31,11 @@ To build RustPython locally, first, clone the source code: git clone https://github.com/RustPython/RustPython ``` +RustPython uses symlinks to manage python libraries in `Lib/`. If on windows, running the following helps: +```bash +git config core.symlinks true +``` + Then you can change into the RustPython directory and run the demo (Note: `--release` is needed to prevent stack overflow on Windows): @@ -56,7 +60,7 @@ NOTE: For windows users, please set `RUSTPYTHONPATH` environment variable as `Li You can also install and run RustPython with the following: ```bash -$ cargo install --git https://github.com/RustPython/RustPython +$ cargo install --git https://github.com/RustPython/RustPython rustpython $ rustpython Welcome to the magnificent Rust Python interpreter >>>>> @@ -91,13 +95,13 @@ You can compile RustPython to a standalone WebAssembly WASI module so it can run Build ```bash -cargo build --target wasm32-wasi --no-default-features --features freeze-stdlib,stdlib --release +cargo build --target wasm32-wasip1 --no-default-features --features freeze-stdlib,stdlib --release ``` Run by wasmer ```bash -wasmer run --dir `pwd` -- target/wasm32-wasi/release/rustpython.wasm `pwd`/extra_tests/snippets/stdlib_random.py +wasmer run --dir `pwd` -- target/wasm32-wasip1/release/rustpython.wasm `pwd`/extra_tests/snippets/stdlib_random.py ``` Run by wapm @@ -114,10 +118,10 @@ $ wapm run rustpython You can build the WebAssembly WASI file with: ```bash -cargo build --release --target wasm32-wasi --features="freeze-stdlib" +cargo build --release --target wasm32-wasip1 --features="freeze-stdlib" ``` -> Note: we use the `freeze-stdlib` to include the standard library inside the binary. You also have to run once `rustup target add wasm32-wasi`. +> Note: we use the `freeze-stdlib` to include the standard library inside the binary. You also have to run once `rustup target add wasm32-wasip1`. ### JIT (Just in time) compiler @@ -222,7 +226,7 @@ To enhance CPython compatibility, try to increase unittest coverage by checking Another approach is to checkout the source code: builtin functions and object methods are often the simplest and easiest way to contribute. -You can also simply run `./whats_left.py` to assist in finding any unimplemented +You can also simply run `uv run python -I whats_left.py` to assist in finding any unimplemented method. ## Compiling to WebAssembly diff --git a/benches/execution.rs b/benches/execution.rs index 8f09aca808..956975c22f 100644 --- a/benches/execution.rs +++ b/benches/execution.rs @@ -1,26 +1,26 @@ use criterion::measurement::WallTime; use criterion::{ - black_box, criterion_group, criterion_main, Bencher, BenchmarkGroup, BenchmarkId, Criterion, - Throughput, + Bencher, BenchmarkGroup, BenchmarkId, Criterion, Throughput, black_box, criterion_group, + criterion_main, }; use rustpython_compiler::Mode; -use rustpython_parser::ast; -use rustpython_parser::Parse; use rustpython_vm::{Interpreter, PyResult, Settings}; use std::collections::HashMap; use std::path::Path; fn bench_cpython_code(b: &mut Bencher, source: &str) { + let c_str_source_head = std::ffi::CString::new(source).unwrap(); + let c_str_source = c_str_source_head.as_c_str(); pyo3::Python::with_gil(|py| { b.iter(|| { - let module = - pyo3::types::PyModule::from_code(py, source, "", "").expect("Error running source"); + let module = pyo3::types::PyModule::from_code(py, c_str_source, c"", c"") + .expect("Error running source"); black_box(module); }) }) } -fn bench_rustpy_code(b: &mut Bencher, name: &str, source: &str) { +fn bench_rustpython_code(b: &mut Bencher, name: &str, source: &str) { // NOTE: Take long time. let mut settings = Settings::default(); settings.path_list.push("Lib/".to_string()); @@ -43,16 +43,17 @@ pub fn benchmark_file_execution(group: &mut BenchmarkGroup, name: &str bench_cpython_code(b, contents) }); group.bench_function(BenchmarkId::new(name, "rustpython"), |b| { - bench_rustpy_code(b, name, contents) + bench_rustpython_code(b, name, contents) }); } pub fn benchmark_file_parsing(group: &mut BenchmarkGroup, name: &str, contents: &str) { group.throughput(Throughput::Bytes(contents.len() as u64)); group.bench_function(BenchmarkId::new("rustpython", name), |b| { - b.iter(|| ast::Suite::parse(contents, name).unwrap()) + b.iter(|| ruff_python_parser::parse_module(contents).unwrap()) }); group.bench_function(BenchmarkId::new("cpython", name), |b| { + use pyo3::types::PyAnyMethods; pyo3::Python::with_gil(|py| { let builtins = pyo3::types::PyModule::import(py, "builtins").expect("Failed to import builtins"); @@ -78,7 +79,7 @@ pub fn benchmark_pystone(group: &mut BenchmarkGroup, contents: String) bench_cpython_code(b, code_str) }); group.bench_function(BenchmarkId::new("rustpython", idx), |b| { - bench_rustpy_code(b, "pystone", code_str) + bench_rustpython_code(b, "pystone", code_str) }); } } diff --git a/benches/microbenchmarks.rs b/benches/microbenchmarks.rs index 8575ae50ad..5f04f4bbf8 100644 --- a/benches/microbenchmarks.rs +++ b/benches/microbenchmarks.rs @@ -1,7 +1,8 @@ use criterion::{ - criterion_group, criterion_main, measurement::WallTime, BatchSize, BenchmarkGroup, BenchmarkId, - Criterion, Throughput, + BatchSize, BenchmarkGroup, BenchmarkId, Criterion, Throughput, criterion_group, criterion_main, + measurement::WallTime, }; +use pyo3::types::PyAnyMethods; use rustpython_compiler::Mode; use rustpython_vm::{AsObject, Interpreter, PyResult, Settings}; use std::{ @@ -47,8 +48,11 @@ fn bench_cpython_code(group: &mut BenchmarkGroup, bench: &MicroBenchma pyo3::types::PyModule::import(py, "builtins").expect("Failed to import builtins"); let exec = builtins.getattr("exec").expect("no exec in builtins"); - let bench_func = |(globals, locals): &mut (&pyo3::types::PyDict, &pyo3::types::PyDict)| { - let res = exec.call((code, &*globals, &*locals), None); + let bench_func = |(globals, locals): &mut ( + pyo3::Bound, + pyo3::Bound, + )| { + let res = exec.call((&code, &*globals, &*locals), None); if let Err(e) = res { e.print(py); panic!("Error running microbenchmark") @@ -62,7 +66,7 @@ fn bench_cpython_code(group: &mut BenchmarkGroup, bench: &MicroBenchma globals.set_item("ITERATIONS", idx).unwrap(); } - let res = exec.call((setup_code, &globals, &locals), None); + let res = exec.call((&setup_code, &globals, &locals), None); if let Err(e) = res { e.print(py); panic!("Error running microbenchmark setup code") @@ -93,14 +97,14 @@ fn cpy_compile_code<'a>( py: pyo3::Python<'a>, code: &str, name: &str, -) -> pyo3::PyResult<&'a pyo3::types::PyCode> { +) -> pyo3::PyResult> { let builtins = pyo3::types::PyModule::import(py, "builtins").expect("Failed to import builtins"); let compile = builtins.getattr("compile").expect("no compile in builtins"); compile.call1((code, name, "exec"))?.extract() } -fn bench_rustpy_code(group: &mut BenchmarkGroup, bench: &MicroBenchmark) { +fn bench_rustpython_code(group: &mut BenchmarkGroup, bench: &MicroBenchmark) { let mut settings = Settings::default(); settings.path_list.push("Lib/".to_string()); settings.write_bytecode = false; @@ -165,7 +169,7 @@ pub fn run_micro_benchmark(c: &mut Criterion, benchmark: MicroBenchmark) { let mut group = c.benchmark_group("microbenchmarks"); bench_cpython_code(&mut group, &benchmark); - bench_rustpy_code(&mut group, &benchmark); + bench_rustpython_code(&mut group, &benchmark); group.finish(); } diff --git a/common/Cargo.toml b/common/Cargo.toml index 354dacc086..4eab8440df 100644 --- a/common/Cargo.toml +++ b/common/Cargo.toml @@ -12,27 +12,28 @@ license.workspace = true threading = ["parking_lot"] [dependencies] -rustpython-format = { workspace = true } +rustpython-literal = { workspace = true } +rustpython-wtf8 = { workspace = true } ascii = { workspace = true } bitflags = { workspace = true } bstr = { workspace = true } cfg-if = { workspace = true } +getrandom = { workspace = true } itertools = { workspace = true } libc = { workspace = true } malachite-bigint = { workspace = true } malachite-q = { workspace = true } malachite-base = { workspace = true } -num-complex = { workspace = true } +memchr = { workspace = true } num-traits = { workspace = true } once_cell = { workspace = true } parking_lot = { workspace = true, optional = true } -rand = { workspace = true } +unicode_names2 = { workspace = true } +radium = { workspace = true } lock_api = "0.4" -radium = "0.7" -siphasher = "0.3" -volatile = "0.3" +siphasher = "1" [target.'cfg(windows)'.dependencies] widestring = { workspace = true } @@ -46,4 +47,4 @@ windows-sys = { workspace = true, features = [ ] } [lints] -workspace = true \ No newline at end of file +workspace = true diff --git a/common/src/borrow.rs b/common/src/borrow.rs index 0e4b9d6be3..ce86d71e27 100644 --- a/common/src/borrow.rs +++ b/common/src/borrow.rs @@ -68,7 +68,7 @@ impl Deref for BorrowedValue<'_, T> { } impl fmt::Display for BorrowedValue<'_, str> { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { fmt::Display::fmt(self.deref(), f) } } diff --git a/common/src/boxvec.rs b/common/src/boxvec.rs index ca81b75107..f5dd622f58 100644 --- a/common/src/boxvec.rs +++ b/common/src/boxvec.rs @@ -1,7 +1,9 @@ +// cspell:disable //! An unresizable vector backed by a `Box<[T]>` +#![allow(clippy::needless_lifetimes)] + use std::{ - alloc, borrow::{Borrow, BorrowMut}, cmp, fmt, mem::{self, MaybeUninit}, @@ -35,29 +37,11 @@ macro_rules! panic_oob { }; } -fn capacity_overflow() -> ! { - panic!("capacity overflow") -} - impl BoxVec { pub fn new(n: usize) -> BoxVec { - unsafe { - let layout = match alloc::Layout::array::(n) { - Ok(l) => l, - Err(_) => capacity_overflow(), - }; - let ptr = if mem::size_of::() == 0 { - ptr::NonNull::>::dangling().as_ptr() - } else { - let ptr = alloc::alloc(layout); - if ptr.is_null() { - alloc::handle_alloc_error(layout) - } - ptr as *mut MaybeUninit - }; - let ptr = ptr::slice_from_raw_parts_mut(ptr, n); - let xs = Box::from_raw(ptr); - BoxVec { xs, len: 0 } + BoxVec { + xs: Box::new_uninit_slice(n), + len: 0, } } @@ -104,13 +88,16 @@ impl BoxVec { pub unsafe fn push_unchecked(&mut self, element: T) { let len = self.len(); debug_assert!(len < self.capacity()); - ptr::write(self.get_unchecked_ptr(len), element); - self.set_len(len + 1); + // SAFETY: len < capacity + unsafe { + ptr::write(self.get_unchecked_ptr(len), element); + self.set_len(len + 1); + } } /// Get pointer to where element at `index` would be unsafe fn get_unchecked_ptr(&mut self, index: usize) -> *mut T { - self.xs.as_mut_ptr().add(index).cast() + unsafe { self.xs.as_mut_ptr().add(index).cast() } } pub fn insert(&mut self, index: usize, element: T) { @@ -276,7 +263,7 @@ impl BoxVec { /// /// **Panics** if the starting point is greater than the end point or if /// the end point is greater than the length of the vector. - pub fn drain(&mut self, range: R) -> Drain + pub fn drain(&mut self, range: R) -> Drain<'_, T> where R: RangeBounds, { @@ -304,7 +291,7 @@ impl BoxVec { self.drain_range(start, end) } - fn drain_range(&mut self, start: usize, end: usize) -> Drain { + fn drain_range(&mut self, start: usize, end: usize) -> Drain<'_, T> { let len = self.len(); // bounds check happens here (before length is changed!) @@ -452,7 +439,7 @@ impl fmt::Debug for IntoIter where T: fmt::Debug, { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { f.debug_list().entries(&self.v[self.index..]).finish() } } @@ -468,8 +455,8 @@ pub struct Drain<'a, T> { vec: ptr::NonNull>, } -unsafe impl<'a, T: Sync> Sync for Drain<'a, T> {} -unsafe impl<'a, T: Sync> Send for Drain<'a, T> {} +unsafe impl Sync for Drain<'_, T> {} +unsafe impl Send for Drain<'_, T> {} impl Iterator for Drain<'_, T> { type Item = T; @@ -564,7 +551,7 @@ impl Extend for BoxVec { }; let mut iter = iter.into_iter(); loop { - if ptr == end_ptr { + if std::ptr::eq(ptr, end_ptr) { break; } if let Some(elt) = iter.next() { @@ -585,7 +572,7 @@ unsafe fn raw_ptr_add(ptr: *mut T, offset: usize) -> *mut T { // Special case for ZST (ptr as usize).wrapping_add(offset) as _ } else { - ptr.add(offset) + unsafe { ptr.add(offset) } } } @@ -593,7 +580,7 @@ unsafe fn raw_ptr_write(ptr: *mut T, value: T) { if mem::size_of::() == 0 { /* nothing */ } else { - ptr::write(ptr, value) + unsafe { ptr::write(ptr, value) } } } @@ -672,7 +659,7 @@ impl fmt::Debug for BoxVec where T: fmt::Debug, { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { (**self).fmt(f) } } @@ -705,13 +692,13 @@ const CAPERROR: &str = "insufficient capacity"; impl std::error::Error for CapacityError {} impl fmt::Display for CapacityError { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { write!(f, "{CAPERROR}") } } impl fmt::Debug for CapacityError { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { write!(f, "capacity error: {CAPERROR}") } } diff --git a/common/src/cformat.rs b/common/src/cformat.rs new file mode 100644 index 0000000000..e62ffca65e --- /dev/null +++ b/common/src/cformat.rs @@ -0,0 +1,1148 @@ +//! Implementation of Printf-Style string formatting +//! as per the [Python Docs](https://docs.python.org/3/library/stdtypes.html#printf-style-string-formatting). +use bitflags::bitflags; +use itertools::Itertools; +use malachite_bigint::{BigInt, Sign}; +use num_traits::Signed; +use rustpython_literal::{float, format::Case}; +use std::{ + cmp, fmt, + iter::{Enumerate, Peekable}, + str::FromStr, +}; + +use crate::wtf8::{CodePoint, Wtf8, Wtf8Buf}; + +#[derive(Debug, PartialEq)] +pub enum CFormatErrorType { + UnmatchedKeyParentheses, + MissingModuloSign, + UnsupportedFormatChar(CodePoint), + IncompleteFormat, + IntTooBig, + // Unimplemented, +} + +// also contains how many chars the parsing function consumed +pub type ParsingError = (CFormatErrorType, usize); + +#[derive(Debug, PartialEq)] +pub struct CFormatError { + pub typ: CFormatErrorType, // FIXME + pub index: usize, +} + +impl fmt::Display for CFormatError { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + use CFormatErrorType::*; + match self.typ { + UnmatchedKeyParentheses => write!(f, "incomplete format key"), + IncompleteFormat => write!(f, "incomplete format"), + UnsupportedFormatChar(c) => write!( + f, + "unsupported format character '{}' ({:#x}) at index {}", + c, + c.to_u32(), + self.index + ), + IntTooBig => write!(f, "width/precision too big"), + _ => write!(f, "unexpected error parsing format string"), + } + } +} + +pub type CFormatConversion = super::format::FormatConversion; + +#[derive(Debug, PartialEq, Clone, Copy)] +#[repr(u8)] +pub enum CNumberType { + DecimalD = b'd', + DecimalI = b'i', + DecimalU = b'u', + Octal = b'o', + HexLower = b'x', + HexUpper = b'X', +} + +#[derive(Debug, PartialEq, Clone, Copy)] +#[repr(u8)] +pub enum CFloatType { + ExponentLower = b'e', + ExponentUpper = b'E', + PointDecimalLower = b'f', + PointDecimalUpper = b'F', + GeneralLower = b'g', + GeneralUpper = b'G', +} + +impl CFloatType { + fn case(self) -> Case { + use CFloatType::*; + match self { + ExponentLower | PointDecimalLower | GeneralLower => Case::Lower, + ExponentUpper | PointDecimalUpper | GeneralUpper => Case::Upper, + } + } +} + +#[derive(Debug, PartialEq, Clone, Copy)] +#[repr(u8)] +pub enum CCharacterType { + Character = b'c', +} + +#[derive(Debug, PartialEq, Clone, Copy)] +pub enum CFormatType { + Number(CNumberType), + Float(CFloatType), + Character(CCharacterType), + String(CFormatConversion), +} + +impl CFormatType { + pub fn to_char(self) -> char { + match self { + CFormatType::Number(x) => x as u8 as char, + CFormatType::Float(x) => x as u8 as char, + CFormatType::Character(x) => x as u8 as char, + CFormatType::String(x) => x as u8 as char, + } + } +} + +#[derive(Debug, PartialEq, Clone, Copy)] +pub enum CFormatPrecision { + Quantity(CFormatQuantity), + Dot, +} + +impl From for CFormatPrecision { + fn from(quantity: CFormatQuantity) -> Self { + CFormatPrecision::Quantity(quantity) + } +} + +bitflags! { + #[derive(Copy, Clone, Debug, PartialEq)] + pub struct CConversionFlags: u32 { + const ALTERNATE_FORM = 0b0000_0001; + const ZERO_PAD = 0b0000_0010; + const LEFT_ADJUST = 0b0000_0100; + const BLANK_SIGN = 0b0000_1000; + const SIGN_CHAR = 0b0001_0000; + } +} + +impl CConversionFlags { + #[inline] + pub fn sign_string(&self) -> &'static str { + if self.contains(CConversionFlags::SIGN_CHAR) { + "+" + } else if self.contains(CConversionFlags::BLANK_SIGN) { + " " + } else { + "" + } + } +} + +#[derive(Debug, PartialEq, Clone, Copy)] +pub enum CFormatQuantity { + Amount(usize), + FromValuesTuple, +} + +pub trait FormatBuf: + Extend + Default + FromIterator + From +{ + type Char: FormatChar; + fn chars(&self) -> impl Iterator; + fn len(&self) -> usize; + fn is_empty(&self) -> bool { + self.len() == 0 + } + fn concat(self, other: Self) -> Self; +} + +pub trait FormatChar: Copy + Into + From { + fn to_char_lossy(self) -> char; + fn eq_char(self, c: char) -> bool; +} + +impl FormatBuf for String { + type Char = char; + fn chars(&self) -> impl Iterator { + (**self).chars() + } + fn len(&self) -> usize { + self.len() + } + fn concat(mut self, other: Self) -> Self { + self.extend([other]); + self + } +} + +impl FormatChar for char { + fn to_char_lossy(self) -> char { + self + } + fn eq_char(self, c: char) -> bool { + self == c + } +} + +impl FormatBuf for Wtf8Buf { + type Char = CodePoint; + fn chars(&self) -> impl Iterator { + self.code_points() + } + fn len(&self) -> usize { + (**self).len() + } + fn concat(mut self, other: Self) -> Self { + self.extend([other]); + self + } +} + +impl FormatChar for CodePoint { + fn to_char_lossy(self) -> char { + self.to_char_lossy() + } + fn eq_char(self, c: char) -> bool { + self == c + } +} + +impl FormatBuf for Vec { + type Char = u8; + fn chars(&self) -> impl Iterator { + self.iter().copied() + } + fn len(&self) -> usize { + self.len() + } + fn concat(mut self, other: Self) -> Self { + self.extend(other); + self + } +} + +impl FormatChar for u8 { + fn to_char_lossy(self) -> char { + self.into() + } + fn eq_char(self, c: char) -> bool { + char::from(self) == c + } +} + +#[derive(Debug, PartialEq, Clone, Copy)] +pub struct CFormatSpec { + pub flags: CConversionFlags, + pub min_field_width: Option, + pub precision: Option, + pub format_type: CFormatType, + // chars_consumed: usize, +} + +#[derive(Debug, PartialEq)] +pub struct CFormatSpecKeyed { + pub mapping_key: Option, + pub spec: CFormatSpec, +} + +#[cfg(test)] +impl FromStr for CFormatSpec { + type Err = ParsingError; + + fn from_str(text: &str) -> Result { + text.parse::>() + .map(|CFormatSpecKeyed { mapping_key, spec }| { + assert!(mapping_key.is_none()); + spec + }) + } +} + +impl FromStr for CFormatSpecKeyed { + type Err = ParsingError; + + fn from_str(text: &str) -> Result { + let mut chars = text.chars().enumerate().peekable(); + if chars.next().map(|x| x.1) != Some('%') { + return Err((CFormatErrorType::MissingModuloSign, 1)); + } + + Self::parse(&mut chars) + } +} + +pub type ParseIter = Peekable>; + +impl CFormatSpecKeyed { + pub fn parse(iter: &mut ParseIter) -> Result + where + I: Iterator, + { + let mapping_key = parse_spec_mapping_key(iter)?; + let flags = parse_flags(iter); + let min_field_width = parse_quantity(iter)?; + let precision = parse_precision(iter)?; + consume_length(iter); + let format_type = parse_format_type(iter)?; + + let spec = CFormatSpec { + flags, + min_field_width, + precision, + format_type, + }; + Ok(Self { mapping_key, spec }) + } +} + +impl CFormatSpec { + fn compute_fill_string(fill_char: T::Char, fill_chars_needed: usize) -> T { + (0..fill_chars_needed).map(|_| fill_char).collect() + } + + fn fill_string( + &self, + string: T, + fill_char: T::Char, + num_prefix_chars: Option, + ) -> T { + let mut num_chars = string.chars().count(); + if let Some(num_prefix_chars) = num_prefix_chars { + num_chars += num_prefix_chars; + } + let num_chars = num_chars; + + let width = match &self.min_field_width { + Some(CFormatQuantity::Amount(width)) => cmp::max(width, &num_chars), + _ => &num_chars, + }; + let fill_chars_needed = width.saturating_sub(num_chars); + let fill_string: T = CFormatSpec::compute_fill_string(fill_char, fill_chars_needed); + + if !fill_string.is_empty() { + if self.flags.contains(CConversionFlags::LEFT_ADJUST) { + string.concat(fill_string) + } else { + fill_string.concat(string) + } + } else { + string + } + } + + fn fill_string_with_precision(&self, string: T, fill_char: T::Char) -> T { + let num_chars = string.chars().count(); + + let width = match &self.precision { + Some(CFormatPrecision::Quantity(CFormatQuantity::Amount(width))) => { + cmp::max(width, &num_chars) + } + _ => &num_chars, + }; + let fill_chars_needed = width.saturating_sub(num_chars); + let fill_string: T = CFormatSpec::compute_fill_string(fill_char, fill_chars_needed); + + if !fill_string.is_empty() { + // Don't left-adjust if precision-filling: that will always be prepending 0s to %d + // arguments, the LEFT_ADJUST flag will be used by a later call to fill_string with + // the 0-filled string as the string param. + fill_string.concat(string) + } else { + string + } + } + + fn format_string_with_precision( + &self, + string: T, + precision: Option<&CFormatPrecision>, + ) -> T { + // truncate if needed + let string = match precision { + Some(CFormatPrecision::Quantity(CFormatQuantity::Amount(precision))) + if string.chars().count() > *precision => + { + string.chars().take(*precision).collect::() + } + Some(CFormatPrecision::Dot) => { + // truncate to 0 + T::default() + } + _ => string, + }; + self.fill_string(string, b' '.into(), None) + } + + #[inline] + pub fn format_string(&self, string: T) -> T { + self.format_string_with_precision(string, self.precision.as_ref()) + } + + #[inline] + pub fn format_char(&self, ch: T::Char) -> T { + self.format_string_with_precision( + T::from_iter([ch]), + Some(&(CFormatQuantity::Amount(1).into())), + ) + } + pub fn format_bytes(&self, bytes: &[u8]) -> Vec { + let bytes = if let Some(CFormatPrecision::Quantity(CFormatQuantity::Amount(precision))) = + self.precision + { + &bytes[..cmp::min(bytes.len(), precision)] + } else { + bytes + }; + if let Some(CFormatQuantity::Amount(width)) = self.min_field_width { + let fill = cmp::max(0, width - bytes.len()); + let mut v = Vec::with_capacity(bytes.len() + fill); + if self.flags.contains(CConversionFlags::LEFT_ADJUST) { + v.extend_from_slice(bytes); + v.append(&mut vec![b' '; fill]); + } else { + v.append(&mut vec![b' '; fill]); + v.extend_from_slice(bytes); + } + v + } else { + bytes.to_vec() + } + } + + pub fn format_number(&self, num: &BigInt) -> String { + use CNumberType::*; + let CFormatType::Number(format_type) = self.format_type else { + unreachable!() + }; + let magnitude = num.abs(); + let prefix = if self.flags.contains(CConversionFlags::ALTERNATE_FORM) { + match format_type { + Octal => "0o", + HexLower => "0x", + HexUpper => "0X", + _ => "", + } + } else { + "" + }; + + let magnitude_string: String = match format_type { + DecimalD | DecimalI | DecimalU => magnitude.to_str_radix(10), + Octal => magnitude.to_str_radix(8), + HexLower => magnitude.to_str_radix(16), + HexUpper => { + let mut result = magnitude.to_str_radix(16); + result.make_ascii_uppercase(); + result + } + }; + + let sign_string = match num.sign() { + Sign::Minus => "-", + _ => self.flags.sign_string(), + }; + + let padded_magnitude_string = self.fill_string_with_precision(magnitude_string, '0'); + + if self.flags.contains(CConversionFlags::ZERO_PAD) { + let fill_char = if !self.flags.contains(CConversionFlags::LEFT_ADJUST) { + '0' + } else { + ' ' // '-' overrides the '0' conversion if both are given + }; + let signed_prefix = format!("{sign_string}{prefix}"); + format!( + "{}{}", + signed_prefix, + self.fill_string( + padded_magnitude_string, + fill_char, + Some(signed_prefix.chars().count()), + ), + ) + } else { + self.fill_string( + format!("{sign_string}{prefix}{padded_magnitude_string}"), + ' ', + None, + ) + } + } + + pub fn format_float(&self, num: f64) -> String { + let sign_string = if num.is_sign_negative() && !num.is_nan() { + "-" + } else { + self.flags.sign_string() + }; + + let precision = match &self.precision { + Some(CFormatPrecision::Quantity(quantity)) => match quantity { + CFormatQuantity::Amount(amount) => *amount, + CFormatQuantity::FromValuesTuple => 6, + }, + Some(CFormatPrecision::Dot) => 0, + None => 6, + }; + + let CFormatType::Float(format_type) = self.format_type else { + unreachable!() + }; + + let magnitude = num.abs(); + let case = format_type.case(); + + let magnitude_string = match format_type { + CFloatType::PointDecimalLower | CFloatType::PointDecimalUpper => float::format_fixed( + precision, + magnitude, + case, + self.flags.contains(CConversionFlags::ALTERNATE_FORM), + ), + CFloatType::ExponentLower | CFloatType::ExponentUpper => float::format_exponent( + precision, + magnitude, + case, + self.flags.contains(CConversionFlags::ALTERNATE_FORM), + ), + CFloatType::GeneralLower | CFloatType::GeneralUpper => { + let precision = if precision == 0 { 1 } else { precision }; + float::format_general( + precision, + magnitude, + case, + self.flags.contains(CConversionFlags::ALTERNATE_FORM), + false, + ) + } + }; + + if self.flags.contains(CConversionFlags::ZERO_PAD) { + let fill_char = if !self.flags.contains(CConversionFlags::LEFT_ADJUST) { + '0' + } else { + ' ' + }; + format!( + "{}{}", + sign_string, + self.fill_string( + magnitude_string, + fill_char, + Some(sign_string.chars().count()), + ) + ) + } else { + self.fill_string(format!("{sign_string}{magnitude_string}"), ' ', None) + } + } +} + +fn parse_spec_mapping_key(iter: &mut ParseIter) -> Result, ParsingError> +where + T: FormatBuf, + I: Iterator, +{ + if let Some((index, _)) = iter.next_if(|(_, c)| c.eq_char('(')) { + return match parse_text_inside_parentheses(iter) { + Some(key) => Ok(Some(key)), + None => Err((CFormatErrorType::UnmatchedKeyParentheses, index)), + }; + } + Ok(None) +} + +fn parse_flags(iter: &mut ParseIter) -> CConversionFlags +where + C: FormatChar, + I: Iterator, +{ + let mut flags = CConversionFlags::empty(); + iter.peeking_take_while(|(_, c)| { + let flag = match c.to_char_lossy() { + '#' => CConversionFlags::ALTERNATE_FORM, + '0' => CConversionFlags::ZERO_PAD, + '-' => CConversionFlags::LEFT_ADJUST, + ' ' => CConversionFlags::BLANK_SIGN, + '+' => CConversionFlags::SIGN_CHAR, + _ => return false, + }; + flags |= flag; + true + }) + .for_each(drop); + flags +} + +fn consume_length(iter: &mut ParseIter) +where + C: FormatChar, + I: Iterator, +{ + iter.next_if(|(_, c)| matches!(c.to_char_lossy(), 'h' | 'l' | 'L')); +} + +fn parse_format_type(iter: &mut ParseIter) -> Result +where + C: FormatChar, + I: Iterator, +{ + use CFloatType::*; + use CNumberType::*; + let (index, c) = iter.next().ok_or_else(|| { + ( + CFormatErrorType::IncompleteFormat, + iter.peek().map(|x| x.0).unwrap_or(0), + ) + })?; + let format_type = match c.to_char_lossy() { + 'd' => CFormatType::Number(DecimalD), + 'i' => CFormatType::Number(DecimalI), + 'u' => CFormatType::Number(DecimalU), + 'o' => CFormatType::Number(Octal), + 'x' => CFormatType::Number(HexLower), + 'X' => CFormatType::Number(HexUpper), + 'e' => CFormatType::Float(ExponentLower), + 'E' => CFormatType::Float(ExponentUpper), + 'f' => CFormatType::Float(PointDecimalLower), + 'F' => CFormatType::Float(PointDecimalUpper), + 'g' => CFormatType::Float(GeneralLower), + 'G' => CFormatType::Float(GeneralUpper), + 'c' => CFormatType::Character(CCharacterType::Character), + 'r' => CFormatType::String(CFormatConversion::Repr), + 's' => CFormatType::String(CFormatConversion::Str), + 'b' => CFormatType::String(CFormatConversion::Bytes), + 'a' => CFormatType::String(CFormatConversion::Ascii), + _ => return Err((CFormatErrorType::UnsupportedFormatChar(c.into()), index)), + }; + Ok(format_type) +} + +fn parse_quantity(iter: &mut ParseIter) -> Result, ParsingError> +where + C: FormatChar, + I: Iterator, +{ + if let Some(&(_, c)) = iter.peek() { + if c.eq_char('*') { + iter.next().unwrap(); + return Ok(Some(CFormatQuantity::FromValuesTuple)); + } + if let Some(i) = c.to_char_lossy().to_digit(10) { + let mut num = i as i32; + iter.next().unwrap(); + while let Some(&(index, c)) = iter.peek() { + if let Some(i) = c.to_char_lossy().to_digit(10) { + num = num + .checked_mul(10) + .and_then(|num| num.checked_add(i as i32)) + .ok_or((CFormatErrorType::IntTooBig, index))?; + iter.next().unwrap(); + } else { + break; + } + } + return Ok(Some(CFormatQuantity::Amount(num.unsigned_abs() as usize))); + } + } + Ok(None) +} + +fn parse_precision(iter: &mut ParseIter) -> Result, ParsingError> +where + C: FormatChar, + I: Iterator, +{ + if iter.next_if(|(_, c)| c.eq_char('.')).is_some() { + let quantity = parse_quantity(iter)?; + let precision = quantity.map_or(CFormatPrecision::Dot, CFormatPrecision::Quantity); + return Ok(Some(precision)); + } + Ok(None) +} + +fn parse_text_inside_parentheses(iter: &mut ParseIter) -> Option +where + T: FormatBuf, + I: Iterator, +{ + let mut counter: i32 = 1; + let mut contained_text = T::default(); + loop { + let (_, c) = iter.next()?; + match c.to_char_lossy() { + '(' => { + counter += 1; + } + ')' => { + counter -= 1; + } + _ => (), + } + + if counter > 0 { + contained_text.extend([c]); + } else { + break; + } + } + + Some(contained_text) +} + +#[derive(Debug, PartialEq)] +pub enum CFormatPart { + Literal(T), + Spec(CFormatSpecKeyed), +} + +impl CFormatPart { + #[inline] + pub fn is_specifier(&self) -> bool { + matches!(self, CFormatPart::Spec { .. }) + } + + #[inline] + pub fn has_key(&self) -> bool { + match self { + CFormatPart::Spec(s) => s.mapping_key.is_some(), + _ => false, + } + } +} + +#[derive(Debug, PartialEq)] +pub struct CFormatStrOrBytes { + parts: Vec<(usize, CFormatPart)>, +} + +impl CFormatStrOrBytes { + pub fn check_specifiers(&self) -> Option<(usize, bool)> { + let mut count = 0; + let mut mapping_required = false; + for (_, part) in &self.parts { + if part.is_specifier() { + let has_key = part.has_key(); + if count == 0 { + mapping_required = has_key; + } else if mapping_required != has_key { + return None; + } + count += 1; + } + } + Some((count, mapping_required)) + } + + #[inline] + pub fn iter(&self) -> impl Iterator)> { + self.parts.iter() + } + + #[inline] + pub fn iter_mut(&mut self) -> impl Iterator)> { + self.parts.iter_mut() + } + + pub fn parse(iter: &mut ParseIter) -> Result + where + S: FormatBuf, + I: Iterator, + { + let mut parts = vec![]; + let mut literal = S::default(); + let mut part_index = 0; + while let Some((index, c)) = iter.next() { + if c.eq_char('%') { + if let Some(&(_, second)) = iter.peek() { + if second.eq_char('%') { + iter.next().unwrap(); + literal.extend([second]); + continue; + } else { + if !literal.is_empty() { + parts.push(( + part_index, + CFormatPart::Literal(std::mem::take(&mut literal)), + )); + } + let spec = CFormatSpecKeyed::parse(iter).map_err(|err| CFormatError { + typ: err.0, + index: err.1, + })?; + parts.push((index, CFormatPart::Spec(spec))); + if let Some(&(index, _)) = iter.peek() { + part_index = index; + } + } + } else { + return Err(CFormatError { + typ: CFormatErrorType::IncompleteFormat, + index: index + 1, + }); + } + } else { + literal.extend([c]); + } + } + if !literal.is_empty() { + parts.push((part_index, CFormatPart::Literal(literal))); + } + Ok(Self { parts }) + } +} + +impl IntoIterator for CFormatStrOrBytes { + type Item = (usize, CFormatPart); + type IntoIter = std::vec::IntoIter; + fn into_iter(self) -> Self::IntoIter { + self.parts.into_iter() + } +} + +pub type CFormatBytes = CFormatStrOrBytes>; + +impl CFormatBytes { + pub fn parse_from_bytes(bytes: &[u8]) -> Result { + let mut iter = bytes.iter().cloned().enumerate().peekable(); + Self::parse(&mut iter) + } +} + +pub type CFormatString = CFormatStrOrBytes; + +impl FromStr for CFormatString { + type Err = CFormatError; + + fn from_str(text: &str) -> Result { + let mut iter = text.chars().enumerate().peekable(); + Self::parse(&mut iter) + } +} + +pub type CFormatWtf8 = CFormatStrOrBytes; + +impl CFormatWtf8 { + pub fn parse_from_wtf8(s: &Wtf8) -> Result { + let mut iter = s.code_points().enumerate().peekable(); + Self::parse(&mut iter) + } +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn test_fill_and_align() { + assert_eq!( + "%10s" + .parse::() + .unwrap() + .format_string("test".to_owned()), + " test".to_owned() + ); + assert_eq!( + "%-10s" + .parse::() + .unwrap() + .format_string("test".to_owned()), + "test ".to_owned() + ); + assert_eq!( + "%#10x" + .parse::() + .unwrap() + .format_number(&BigInt::from(0x1337)), + " 0x1337".to_owned() + ); + assert_eq!( + "%-#10x" + .parse::() + .unwrap() + .format_number(&BigInt::from(0x1337)), + "0x1337 ".to_owned() + ); + } + + #[test] + fn test_parse_key() { + let expected = Ok(CFormatSpecKeyed { + mapping_key: Some("amount".to_owned()), + spec: CFormatSpec { + format_type: CFormatType::Number(CNumberType::DecimalD), + min_field_width: None, + precision: None, + flags: CConversionFlags::empty(), + }, + }); + assert_eq!("%(amount)d".parse::>(), expected); + + let expected = Ok(CFormatSpecKeyed { + mapping_key: Some("m((u(((l((((ti))))p)))l))e".to_owned()), + spec: CFormatSpec { + format_type: CFormatType::Number(CNumberType::DecimalD), + min_field_width: None, + precision: None, + flags: CConversionFlags::empty(), + }, + }); + assert_eq!( + "%(m((u(((l((((ti))))p)))l))e)d".parse::>(), + expected + ); + } + + #[test] + fn test_format_parse_key_fail() { + assert_eq!( + "%(aged".parse::(), + Err(CFormatError { + typ: CFormatErrorType::UnmatchedKeyParentheses, + index: 1 + }) + ); + } + + #[test] + fn test_format_parse_type_fail() { + assert_eq!( + "Hello %n".parse::(), + Err(CFormatError { + typ: CFormatErrorType::UnsupportedFormatChar('n'.into()), + index: 7 + }) + ); + } + + #[test] + fn test_incomplete_format_fail() { + assert_eq!( + "Hello %".parse::(), + Err(CFormatError { + typ: CFormatErrorType::IncompleteFormat, + index: 7 + }) + ); + } + + #[test] + fn test_parse_flags() { + let expected = Ok(CFormatSpec { + format_type: CFormatType::Number(CNumberType::DecimalD), + min_field_width: Some(CFormatQuantity::Amount(10)), + precision: None, + flags: CConversionFlags::all(), + }); + let parsed = "% 0 -+++###10d".parse::(); + assert_eq!(parsed, expected); + assert_eq!( + parsed.unwrap().format_number(&BigInt::from(12)), + "+12 ".to_owned() + ); + } + + #[test] + fn test_parse_and_format_string() { + assert_eq!( + "%5.4s" + .parse::() + .unwrap() + .format_string("Hello, World!".to_owned()), + " Hell".to_owned() + ); + assert_eq!( + "%-5.4s" + .parse::() + .unwrap() + .format_string("Hello, World!".to_owned()), + "Hell ".to_owned() + ); + assert_eq!( + "%.s" + .parse::() + .unwrap() + .format_string("Hello, World!".to_owned()), + "".to_owned() + ); + assert_eq!( + "%5.s" + .parse::() + .unwrap() + .format_string("Hello, World!".to_owned()), + " ".to_owned() + ); + } + + #[test] + fn test_parse_and_format_unicode_string() { + assert_eq!( + "%.2s" + .parse::() + .unwrap() + .format_string("❤❤❤❤❤❤❤❤".to_owned()), + "❤❤".to_owned() + ); + } + + #[test] + fn test_parse_and_format_number() { + assert_eq!( + "%5d" + .parse::() + .unwrap() + .format_number(&BigInt::from(27)), + " 27".to_owned() + ); + assert_eq!( + "%05d" + .parse::() + .unwrap() + .format_number(&BigInt::from(27)), + "00027".to_owned() + ); + assert_eq!( + "%.5d" + .parse::() + .unwrap() + .format_number(&BigInt::from(27)), + "00027".to_owned() + ); + assert_eq!( + "%+05d" + .parse::() + .unwrap() + .format_number(&BigInt::from(27)), + "+0027".to_owned() + ); + assert_eq!( + "%-d" + .parse::() + .unwrap() + .format_number(&BigInt::from(-27)), + "-27".to_owned() + ); + assert_eq!( + "% d" + .parse::() + .unwrap() + .format_number(&BigInt::from(27)), + " 27".to_owned() + ); + assert_eq!( + "% d" + .parse::() + .unwrap() + .format_number(&BigInt::from(-27)), + "-27".to_owned() + ); + assert_eq!( + "%08x" + .parse::() + .unwrap() + .format_number(&BigInt::from(0x1337)), + "00001337".to_owned() + ); + assert_eq!( + "%#010x" + .parse::() + .unwrap() + .format_number(&BigInt::from(0x1337)), + "0x00001337".to_owned() + ); + assert_eq!( + "%-#010x" + .parse::() + .unwrap() + .format_number(&BigInt::from(0x1337)), + "0x1337 ".to_owned() + ); + } + + #[test] + fn test_parse_and_format_float() { + assert_eq!( + "%f".parse::().unwrap().format_float(1.2345), + "1.234500" + ); + assert_eq!( + "%.2f".parse::().unwrap().format_float(1.2345), + "1.23" + ); + assert_eq!( + "%.f".parse::().unwrap().format_float(1.2345), + "1" + ); + assert_eq!( + "%+.f".parse::().unwrap().format_float(1.2345), + "+1" + ); + assert_eq!( + "%+f".parse::().unwrap().format_float(1.2345), + "+1.234500" + ); + assert_eq!( + "% f".parse::().unwrap().format_float(1.2345), + " 1.234500" + ); + assert_eq!( + "%f".parse::().unwrap().format_float(-1.2345), + "-1.234500" + ); + assert_eq!( + "%f".parse::() + .unwrap() + .format_float(1.2345678901), + "1.234568" + ); + } + + #[test] + fn test_format_parse() { + let fmt = "Hello, my name is %s and I'm %d years old"; + let expected = Ok(CFormatString { + parts: vec![ + (0, CFormatPart::Literal("Hello, my name is ".to_owned())), + ( + 18, + CFormatPart::Spec(CFormatSpecKeyed { + mapping_key: None, + spec: CFormatSpec { + format_type: CFormatType::String(CFormatConversion::Str), + min_field_width: None, + precision: None, + flags: CConversionFlags::empty(), + }, + }), + ), + (20, CFormatPart::Literal(" and I'm ".to_owned())), + ( + 29, + CFormatPart::Spec(CFormatSpecKeyed { + mapping_key: None, + spec: CFormatSpec { + format_type: CFormatType::Number(CNumberType::DecimalD), + min_field_width: None, + precision: None, + flags: CConversionFlags::empty(), + }, + }), + ), + (31, CFormatPart::Literal(" years old".to_owned())), + ], + }); + let result = fmt.parse::(); + assert_eq!( + result, expected, + "left = {result:#?} \n\n\n right = {expected:#?}" + ); + } +} diff --git a/common/src/cmp.rs b/common/src/cmp.rs deleted file mode 100644 index d182340a98..0000000000 --- a/common/src/cmp.rs +++ /dev/null @@ -1,48 +0,0 @@ -use volatile::Volatile; - -/// Compare 2 byte slices in a way that ensures that the timing of the operation can't be used to -/// glean any information about the data. -#[inline(never)] -#[cold] -pub fn timing_safe_cmp(a: &[u8], b: &[u8]) -> bool { - // we use raw pointers here to keep faithful to the C implementation and - // to try to avoid any optimizations rustc might do with slices - let len_a = a.len(); - let a = a.as_ptr(); - let len_b = b.len(); - let b = b.as_ptr(); - /* The volatile type declarations make sure that the compiler has no - * chance to optimize and fold the code in any way that may change - * the timing. - */ - let mut result: u8 = 0; - /* loop count depends on length of b */ - let length: Volatile = Volatile::new(len_b); - let mut left: Volatile<*const u8> = Volatile::new(std::ptr::null()); - let mut right: Volatile<*const u8> = Volatile::new(b); - - /* don't use else here to keep the amount of CPU instructions constant, - * volatile forces re-evaluation - * */ - if len_a == length.read() { - left.write(Volatile::new(a).read()); - result = 0; - } - if len_a != length.read() { - left.write(b); - result = 1; - } - - for _ in 0..length.read() { - let l = left.read(); - left.write(l.wrapping_add(1)); - let r = right.read(); - right.write(r.wrapping_add(1)); - // safety: the 0..length range will always be either: - // * as long as the length of both a and b, if len_a and len_b are equal - // * as long as b, and both `left` and `right` are b - result |= unsafe { l.read_volatile() ^ r.read_volatile() }; - } - - result == 0 -} diff --git a/common/src/crt_fd.rs b/common/src/crt_fd.rs index 14f61b8059..64d4df98a5 100644 --- a/common/src/crt_fd.rs +++ b/common/src/crt_fd.rs @@ -6,7 +6,7 @@ use std::{cmp, ffi, io}; #[cfg(windows)] use libc::commit as fsync; #[cfg(windows)] -extern "C" { +unsafe extern "C" { #[link_name = "_chsize_s"] fn ftruncate(fd: i32, len: i64) -> i32; } @@ -74,7 +74,7 @@ impl Fd { #[cfg(windows)] pub fn to_raw_handle(&self) -> io::Result { - extern "C" { + unsafe extern "C" { fn _get_osfhandle(fd: i32) -> libc::intptr_t; } let handle = unsafe { suppress_iph!(_get_osfhandle(self.0)) }; diff --git a/common/src/encodings.rs b/common/src/encodings.rs index 4e0c1de56a..c444e27a5a 100644 --- a/common/src/encodings.rs +++ b/common/src/encodings.rs @@ -1,37 +1,131 @@ -use std::ops::Range; +use std::ops::{self, Range}; -pub type EncodeErrorResult = Result<(EncodeReplace, usize), E>; +use num_traits::ToPrimitive; -pub type DecodeErrorResult = Result<(S, Option, usize), E>; +use crate::str::StrKind; +use crate::wtf8::{CodePoint, Wtf8, Wtf8Buf}; -pub trait StrBuffer: AsRef { - fn is_ascii(&self) -> bool { - self.as_ref().is_ascii() +pub trait StrBuffer: AsRef { + fn is_compatible_with(&self, kind: StrKind) -> bool { + let s = self.as_ref(); + match kind { + StrKind::Ascii => s.is_ascii(), + StrKind::Utf8 => s.is_utf8(), + StrKind::Wtf8 => true, + } } } -pub trait ErrorHandler { +pub trait CodecContext: Sized { type Error; type StrBuf: StrBuffer; type BytesBuf: AsRef<[u8]>; + + fn string(&self, s: Wtf8Buf) -> Self::StrBuf; + fn bytes(&self, b: Vec) -> Self::BytesBuf; +} + +pub trait EncodeContext: CodecContext { + fn full_data(&self) -> &Wtf8; + fn data_len(&self) -> StrSize; + + fn remaining_data(&self) -> &Wtf8; + fn position(&self) -> StrSize; + + fn restart_from(&mut self, pos: StrSize) -> Result<(), Self::Error>; + + fn error_encoding(&self, range: Range, reason: Option<&str>) -> Self::Error; + + fn handle_error( + &mut self, + errors: &E, + range: Range, + reason: Option<&str>, + ) -> Result, Self::Error> + where + E: EncodeErrorHandler, + { + let (replace, restart) = errors.handle_encode_error(self, range, reason)?; + self.restart_from(restart)?; + Ok(replace) + } +} + +pub trait DecodeContext: CodecContext { + fn full_data(&self) -> &[u8]; + + fn remaining_data(&self) -> &[u8]; + fn position(&self) -> usize; + + fn advance(&mut self, by: usize); + + fn restart_from(&mut self, pos: usize) -> Result<(), Self::Error>; + + fn error_decoding(&self, byte_range: Range, reason: Option<&str>) -> Self::Error; + + fn handle_error( + &mut self, + errors: &E, + byte_range: Range, + reason: Option<&str>, + ) -> Result + where + E: DecodeErrorHandler, + { + let (replace, restart) = errors.handle_decode_error(self, byte_range, reason)?; + self.restart_from(restart)?; + Ok(replace) + } +} + +pub trait EncodeErrorHandler { fn handle_encode_error( &self, - data: &str, - char_range: Range, - reason: &str, - ) -> EncodeErrorResult; + ctx: &mut Ctx, + range: Range, + reason: Option<&str>, + ) -> Result<(EncodeReplace, StrSize), Ctx::Error>; +} +pub trait DecodeErrorHandler { fn handle_decode_error( &self, - data: &[u8], + ctx: &mut Ctx, byte_range: Range, - reason: &str, - ) -> DecodeErrorResult; - fn error_oob_restart(&self, i: usize) -> Self::Error; - fn error_encoding(&self, data: &str, char_range: Range, reason: &str) -> Self::Error; + reason: Option<&str>, + ) -> Result<(Ctx::StrBuf, usize), Ctx::Error>; +} + +pub enum EncodeReplace { + Str(Ctx::StrBuf), + Bytes(Ctx::BytesBuf), +} + +#[derive(Copy, Clone, Default, Debug)] +pub struct StrSize { + pub bytes: usize, + pub chars: usize, } -pub enum EncodeReplace { - Str(S), - Bytes(B), + +fn iter_code_points(w: &Wtf8) -> impl Iterator { + w.code_point_indices() + .enumerate() + .map(|(chars, (bytes, c))| (StrSize { bytes, chars }, c)) +} + +impl ops::Add for StrSize { + type Output = Self; + fn add(self, rhs: Self) -> Self::Output { + Self { + bytes: self.bytes + rhs.bytes, + chars: self.chars + rhs.chars, + } + } +} +impl ops::AddAssign for StrSize { + fn add_assign(&mut self, rhs: Self) { + self.bytes += rhs.bytes; + self.chars += rhs.chars; + } } struct DecodeError<'a> { @@ -42,8 +136,8 @@ struct DecodeError<'a> { /// # Safety /// `v[..valid_up_to]` must be valid utf8 unsafe fn make_decode_err(v: &[u8], valid_up_to: usize, err_len: Option) -> DecodeError<'_> { - let valid_prefix = core::str::from_utf8_unchecked(v.get_unchecked(..valid_up_to)); - let rest = v.get_unchecked(valid_up_to..); + let (valid_prefix, rest) = unsafe { v.split_at_unchecked(valid_up_to) }; + let valid_prefix = unsafe { core::str::from_utf8_unchecked(valid_prefix) }; DecodeError { valid_prefix, rest, @@ -58,62 +152,318 @@ enum HandleResult<'a> { reason: &'a str, }, } -fn decode_utf8_compatible( - data: &[u8], +fn decode_utf8_compatible( + mut ctx: Ctx, errors: &E, decode: DecodeF, handle_error: ErrF, -) -> Result<(String, usize), E::Error> +) -> Result<(Wtf8Buf, usize), Ctx::Error> where + Ctx: DecodeContext, + E: DecodeErrorHandler, DecodeF: Fn(&[u8]) -> Result<&str, DecodeError<'_>>, - ErrF: Fn(&[u8], Option) -> HandleResult<'_>, + ErrF: Fn(&[u8], Option) -> HandleResult<'static>, { - if data.is_empty() { - return Ok((String::new(), 0)); + if ctx.remaining_data().is_empty() { + return Ok((Wtf8Buf::new(), 0)); } - // we need to coerce the lifetime to that of the function body rather than the - // anonymous input lifetime, so that we can assign it data borrowed from data_from_err - let mut data = data; - let mut data_from_err: E::BytesBuf; - let mut out = String::with_capacity(data.len()); - let mut remaining_index = 0; - let mut remaining_data = data; + let mut out = Wtf8Buf::with_capacity(ctx.remaining_data().len()); loop { - match decode(remaining_data) { + match decode(ctx.remaining_data()) { Ok(decoded) => { out.push_str(decoded); - remaining_index += decoded.len(); + ctx.advance(decoded.len()); break; } Err(e) => { out.push_str(e.valid_prefix); match handle_error(e.rest, e.err_len) { HandleResult::Done => { - remaining_index += e.valid_prefix.len(); + ctx.advance(e.valid_prefix.len()); break; } HandleResult::Error { err_len, reason } => { - let err_idx = remaining_index + e.valid_prefix.len(); - let err_range = - err_idx..err_len.map_or_else(|| data.len(), |len| err_idx + len); - let (replace, new_data, restart) = - errors.handle_decode_error(data, err_range, reason)?; - out.push_str(replace.as_ref()); - if let Some(new_data) = new_data { - data_from_err = new_data; - data = data_from_err.as_ref(); - } - remaining_data = data - .get(restart..) - .ok_or_else(|| errors.error_oob_restart(restart))?; - remaining_index = restart; + let err_start = ctx.position() + e.valid_prefix.len(); + let err_end = match err_len { + Some(len) => err_start + len, + None => ctx.full_data().len(), + }; + let err_range = err_start..err_end; + let replace = ctx.handle_error(errors, err_range, Some(reason))?; + out.push_wtf8(replace.as_ref()); continue; } } } } } - Ok((out, remaining_index)) + Ok((out, ctx.position())) +} + +#[inline] +fn encode_utf8_compatible( + mut ctx: Ctx, + errors: &E, + err_reason: &str, + target_kind: StrKind, +) -> Result, Ctx::Error> +where + Ctx: EncodeContext, + E: EncodeErrorHandler, +{ + // let mut data = s.as_ref(); + // let mut char_data_index = 0; + let mut out = Vec::::with_capacity(ctx.remaining_data().len()); + loop { + let data = ctx.remaining_data(); + let mut iter = iter_code_points(data); + let Some((i, _)) = iter.find(|(_, c)| !target_kind.can_encode(*c)) else { + break; + }; + + out.extend_from_slice(&ctx.remaining_data().as_bytes()[..i.bytes]); + + let err_start = ctx.position() + i; + // number of non-compatible chars between the first non-compatible char and the next compatible char + let err_end = match { iter }.find(|(_, c)| target_kind.can_encode(*c)) { + Some((i, _)) => ctx.position() + i, + None => ctx.data_len(), + }; + + let range = err_start..err_end; + let replace = ctx.handle_error(errors, range.clone(), Some(err_reason))?; + match replace { + EncodeReplace::Str(s) => { + if s.is_compatible_with(target_kind) { + out.extend_from_slice(s.as_ref().as_bytes()); + } else { + return Err(ctx.error_encoding(range, Some(err_reason))); + } + } + EncodeReplace::Bytes(b) => { + out.extend_from_slice(b.as_ref()); + } + } + } + out.extend_from_slice(ctx.remaining_data().as_bytes()); + Ok(out) +} + +pub mod errors { + use crate::str::UnicodeEscapeCodepoint; + + use super::*; + use std::fmt::Write; + + pub struct Strict; + + impl EncodeErrorHandler for Strict { + fn handle_encode_error( + &self, + ctx: &mut Ctx, + range: Range, + reason: Option<&str>, + ) -> Result<(EncodeReplace, StrSize), Ctx::Error> { + Err(ctx.error_encoding(range, reason)) + } + } + + impl DecodeErrorHandler for Strict { + fn handle_decode_error( + &self, + ctx: &mut Ctx, + byte_range: Range, + reason: Option<&str>, + ) -> Result<(Ctx::StrBuf, usize), Ctx::Error> { + Err(ctx.error_decoding(byte_range, reason)) + } + } + + pub struct Ignore; + + impl EncodeErrorHandler for Ignore { + fn handle_encode_error( + &self, + ctx: &mut Ctx, + range: Range, + _reason: Option<&str>, + ) -> Result<(EncodeReplace, StrSize), Ctx::Error> { + Ok((EncodeReplace::Bytes(ctx.bytes(b"".into())), range.end)) + } + } + + impl DecodeErrorHandler for Ignore { + fn handle_decode_error( + &self, + ctx: &mut Ctx, + byte_range: Range, + _reason: Option<&str>, + ) -> Result<(Ctx::StrBuf, usize), Ctx::Error> { + Ok((ctx.string("".into()), byte_range.end)) + } + } + + pub struct Replace; + + impl EncodeErrorHandler for Replace { + fn handle_encode_error( + &self, + ctx: &mut Ctx, + range: Range, + _reason: Option<&str>, + ) -> Result<(EncodeReplace, StrSize), Ctx::Error> { + let replace = "?".repeat(range.end.chars - range.start.chars); + Ok((EncodeReplace::Str(ctx.string(replace.into())), range.end)) + } + } + + impl DecodeErrorHandler for Replace { + fn handle_decode_error( + &self, + ctx: &mut Ctx, + byte_range: Range, + _reason: Option<&str>, + ) -> Result<(Ctx::StrBuf, usize), Ctx::Error> { + Ok(( + ctx.string(char::REPLACEMENT_CHARACTER.to_string().into()), + byte_range.end, + )) + } + } + + pub struct XmlCharRefReplace; + + impl EncodeErrorHandler for XmlCharRefReplace { + fn handle_encode_error( + &self, + ctx: &mut Ctx, + range: Range, + _reason: Option<&str>, + ) -> Result<(EncodeReplace, StrSize), Ctx::Error> { + let err_str = &ctx.full_data()[range.start.bytes..range.end.bytes]; + let num_chars = range.end.chars - range.start.chars; + // capacity rough guess; assuming that the codepoints are 3 digits in decimal + the &#; + let mut out = String::with_capacity(num_chars * 6); + for c in err_str.code_points() { + write!(out, "&#{};", c.to_u32()).unwrap() + } + Ok((EncodeReplace::Str(ctx.string(out.into())), range.end)) + } + } + + pub struct BackslashReplace; + + impl EncodeErrorHandler for BackslashReplace { + fn handle_encode_error( + &self, + ctx: &mut Ctx, + range: Range, + _reason: Option<&str>, + ) -> Result<(EncodeReplace, StrSize), Ctx::Error> { + let err_str = &ctx.full_data()[range.start.bytes..range.end.bytes]; + let num_chars = range.end.chars - range.start.chars; + // minimum 4 output bytes per char: \xNN + let mut out = String::with_capacity(num_chars * 4); + for c in err_str.code_points() { + write!(out, "{}", UnicodeEscapeCodepoint(c)).unwrap(); + } + Ok((EncodeReplace::Str(ctx.string(out.into())), range.end)) + } + } + + impl DecodeErrorHandler for BackslashReplace { + fn handle_decode_error( + &self, + ctx: &mut Ctx, + byte_range: Range, + _reason: Option<&str>, + ) -> Result<(Ctx::StrBuf, usize), Ctx::Error> { + let err_bytes = &ctx.full_data()[byte_range.clone()]; + let mut replace = String::with_capacity(4 * err_bytes.len()); + for &c in err_bytes { + write!(replace, "\\x{c:02x}").unwrap(); + } + Ok((ctx.string(replace.into()), byte_range.end)) + } + } + + pub struct NameReplace; + + impl EncodeErrorHandler for NameReplace { + fn handle_encode_error( + &self, + ctx: &mut Ctx, + range: Range, + _reason: Option<&str>, + ) -> Result<(EncodeReplace, StrSize), Ctx::Error> { + let err_str = &ctx.full_data()[range.start.bytes..range.end.bytes]; + let num_chars = range.end.chars - range.start.chars; + let mut out = String::with_capacity(num_chars * 4); + for c in err_str.code_points() { + let c_u32 = c.to_u32(); + if let Some(c_name) = c.to_char().and_then(unicode_names2::name) { + write!(out, "\\N{{{c_name}}}").unwrap(); + } else if c_u32 >= 0x10000 { + write!(out, "\\U{c_u32:08x}").unwrap(); + } else if c_u32 >= 0x100 { + write!(out, "\\u{c_u32:04x}").unwrap(); + } else { + write!(out, "\\x{c_u32:02x}").unwrap(); + } + } + Ok((EncodeReplace::Str(ctx.string(out.into())), range.end)) + } + } + + pub struct SurrogateEscape; + + impl EncodeErrorHandler for SurrogateEscape { + fn handle_encode_error( + &self, + ctx: &mut Ctx, + range: Range, + reason: Option<&str>, + ) -> Result<(EncodeReplace, StrSize), Ctx::Error> { + let err_str = &ctx.full_data()[range.start.bytes..range.end.bytes]; + let num_chars = range.end.chars - range.start.chars; + let mut out = Vec::with_capacity(num_chars); + for ch in err_str.code_points() { + let ch = ch.to_u32(); + if !(0xdc80..=0xdcff).contains(&ch) { + // Not a UTF-8b surrogate, fail with original exception + return Err(ctx.error_encoding(range, reason)); + } + out.push((ch - 0xdc00) as u8); + } + Ok((EncodeReplace::Bytes(ctx.bytes(out)), range.end)) + } + } + + impl DecodeErrorHandler for SurrogateEscape { + fn handle_decode_error( + &self, + ctx: &mut Ctx, + byte_range: Range, + reason: Option<&str>, + ) -> Result<(Ctx::StrBuf, usize), Ctx::Error> { + let err_bytes = &ctx.full_data()[byte_range.clone()]; + let mut consumed = 0; + let mut replace = Wtf8Buf::with_capacity(4 * byte_range.len()); + while consumed < 4 && consumed < byte_range.len() { + let c = err_bytes[consumed] as u16; + // Refuse to escape ASCII bytes + if c < 128 { + break; + } + replace.push(CodePoint::from(0xdc00 + c)); + consumed += 1; + } + if consumed == 0 { + return Err(ctx.error_decoding(byte_range, reason)); + } + Ok((ctx.string(replace), byte_range.start + consumed)) + } + } } pub mod utf8 { @@ -122,17 +472,21 @@ pub mod utf8 { pub const ENCODING_NAME: &str = "utf-8"; #[inline] - pub fn encode(s: &str, _errors: &E) -> Result, E::Error> { - Ok(s.as_bytes().to_vec()) + pub fn encode(ctx: Ctx, errors: &E) -> Result, Ctx::Error> + where + Ctx: EncodeContext, + E: EncodeErrorHandler, + { + encode_utf8_compatible(ctx, errors, "surrogates not allowed", StrKind::Utf8) } - pub fn decode( - data: &[u8], + pub fn decode>( + ctx: Ctx, errors: &E, final_decode: bool, - ) -> Result<(String, usize), E::Error> { + ) -> Result<(Wtf8Buf, usize), Ctx::Error> { decode_utf8_compatible( - data, + ctx, errors, |v| { core::str::from_utf8(v).map_err(|e| { @@ -180,70 +534,57 @@ pub mod latin_1 { const ERR_REASON: &str = "ordinal not in range(256)"; #[inline] - pub fn encode(s: &str, errors: &E) -> Result, E::Error> { - let full_data = s; - let mut data = s; - let mut char_data_index = 0; + pub fn encode(mut ctx: Ctx, errors: &E) -> Result, Ctx::Error> + where + Ctx: EncodeContext, + E: EncodeErrorHandler, + { let mut out = Vec::::new(); loop { - match data - .char_indices() - .enumerate() - .find(|(_, (_, c))| !c.is_ascii()) - { - None => { - out.extend_from_slice(data.as_bytes()); - break; - } - Some((char_i, (byte_i, ch))) => { - out.extend_from_slice(&data.as_bytes()[..byte_i]); - let char_start = char_data_index + char_i; - if (ch as u32) <= 255 { - out.push(ch as u8); - let char_restart = char_start + 1; - data = crate::str::try_get_chars(full_data, char_restart..) - .ok_or_else(|| errors.error_oob_restart(char_restart))?; - char_data_index = char_restart; - } else { - // number of non-latin_1 chars between the first non-latin_1 char and the next latin_1 char - let non_latin_1_run_length = data[byte_i..] - .chars() - .take_while(|c| (*c as u32) > 255) - .count(); - let char_range = char_start..char_start + non_latin_1_run_length; - let (replace, char_restart) = errors.handle_encode_error( - full_data, - char_range.clone(), - ERR_REASON, - )?; - match replace { - EncodeReplace::Str(s) => { - if s.as_ref().chars().any(|c| (c as u32) > 255) { - return Err( - errors.error_encoding(full_data, char_range, ERR_REASON) - ); - } - out.extend_from_slice(s.as_ref().as_bytes()); - } - EncodeReplace::Bytes(b) => { - out.extend_from_slice(b.as_ref()); - } + let data = ctx.remaining_data(); + let mut iter = iter_code_points(ctx.remaining_data()); + let Some((i, ch)) = iter.find(|(_, c)| !c.is_ascii()) else { + break; + }; + out.extend_from_slice(&data.as_bytes()[..i.bytes]); + let err_start = ctx.position() + i; + if let Some(byte) = ch.to_u32().to_u8() { + drop(iter); + out.push(byte); + // if the codepoint is between 128..=255, it's utf8-length is 2 + ctx.restart_from(err_start + StrSize { bytes: 2, chars: 1 })?; + } else { + // number of non-latin_1 chars between the first non-latin_1 char and the next latin_1 char + let err_end = match { iter }.find(|(_, c)| c.to_u32() <= 255) { + Some((i, _)) => ctx.position() + i, + None => ctx.data_len(), + }; + let err_range = err_start..err_end; + let replace = ctx.handle_error(errors, err_range.clone(), Some(ERR_REASON))?; + match replace { + EncodeReplace::Str(s) => { + if s.as_ref().code_points().any(|c| c.to_u32() > 255) { + return Err(ctx.error_encoding(err_range, Some(ERR_REASON))); } - data = crate::str::try_get_chars(full_data, char_restart..) - .ok_or_else(|| errors.error_oob_restart(char_restart))?; - char_data_index = char_restart; + out.extend(s.as_ref().code_points().map(|c| c.to_u32() as u8)); + } + EncodeReplace::Bytes(b) => { + out.extend_from_slice(b.as_ref()); } - continue; } } } + out.extend_from_slice(ctx.remaining_data().as_bytes()); Ok(out) } - pub fn decode(data: &[u8], _errors: &E) -> Result<(String, usize), E::Error> { - let out: String = data.iter().map(|c| *c as char).collect(); + pub fn decode>( + ctx: Ctx, + _errors: &E, + ) -> Result<(Wtf8Buf, usize), Ctx::Error> { + let out: String = ctx.remaining_data().iter().map(|c| *c as char).collect(); let out_len = out.len(); - Ok((out, out_len)) + Ok((out.into(), out_len)) } } @@ -256,56 +597,20 @@ pub mod ascii { const ERR_REASON: &str = "ordinal not in range(128)"; #[inline] - pub fn encode(s: &str, errors: &E) -> Result, E::Error> { - let full_data = s; - let mut data = s; - let mut char_data_index = 0; - let mut out = Vec::::new(); - loop { - match data - .char_indices() - .enumerate() - .find(|(_, (_, c))| !c.is_ascii()) - { - None => { - out.extend_from_slice(data.as_bytes()); - break; - } - Some((char_i, (byte_i, _))) => { - out.extend_from_slice(&data.as_bytes()[..byte_i]); - let char_start = char_data_index + char_i; - // number of non-ascii chars between the first non-ascii char and the next ascii char - let non_ascii_run_length = - data[byte_i..].chars().take_while(|c| !c.is_ascii()).count(); - let char_range = char_start..char_start + non_ascii_run_length; - let (replace, char_restart) = - errors.handle_encode_error(full_data, char_range.clone(), ERR_REASON)?; - match replace { - EncodeReplace::Str(s) => { - if !s.is_ascii() { - return Err( - errors.error_encoding(full_data, char_range, ERR_REASON) - ); - } - out.extend_from_slice(s.as_ref().as_bytes()); - } - EncodeReplace::Bytes(b) => { - out.extend_from_slice(b.as_ref()); - } - } - data = crate::str::try_get_chars(full_data, char_restart..) - .ok_or_else(|| errors.error_oob_restart(char_restart))?; - char_data_index = char_restart; - continue; - } - } - } - Ok(out) + pub fn encode(ctx: Ctx, errors: &E) -> Result, Ctx::Error> + where + Ctx: EncodeContext, + E: EncodeErrorHandler, + { + encode_utf8_compatible(ctx, errors, ERR_REASON, StrKind::Ascii) } - pub fn decode(data: &[u8], errors: &E) -> Result<(String, usize), E::Error> { + pub fn decode>( + ctx: Ctx, + errors: &E, + ) -> Result<(Wtf8Buf, usize), Ctx::Error> { decode_utf8_compatible( - data, + ctx, errors, |v| { AsciiStr::from_ascii(v).map(|s| s.as_str()).map_err(|e| { diff --git a/common/src/fileutils.rs b/common/src/fileutils.rs index dcb78675d8..5a0d380e20 100644 --- a/common/src/fileutils.rs +++ b/common/src/fileutils.rs @@ -5,7 +5,7 @@ pub use libc::stat as StatStruct; #[cfg(windows)] -pub use windows::{fstat, StatStruct}; +pub use windows::{StatStruct, fstat}; #[cfg(not(windows))] pub fn fstat(fd: libc::c_int) -> std::io::Result { @@ -28,19 +28,19 @@ pub mod windows { use std::ffi::{CString, OsStr, OsString}; use std::os::windows::ffi::OsStrExt; use std::sync::OnceLock; - use windows_sys::core::PCWSTR; use windows_sys::Win32::Foundation::{ - FreeLibrary, SetLastError, BOOL, ERROR_INVALID_HANDLE, ERROR_NOT_SUPPORTED, FILETIME, - HANDLE, INVALID_HANDLE_VALUE, + BOOL, ERROR_INVALID_HANDLE, ERROR_NOT_SUPPORTED, FILETIME, FreeLibrary, HANDLE, + INVALID_HANDLE_VALUE, SetLastError, }; use windows_sys::Win32::Storage::FileSystem::{ - FileBasicInfo, FileIdInfo, GetFileInformationByHandle, GetFileInformationByHandleEx, - GetFileType, BY_HANDLE_FILE_INFORMATION, FILE_ATTRIBUTE_DIRECTORY, FILE_ATTRIBUTE_READONLY, + BY_HANDLE_FILE_INFORMATION, FILE_ATTRIBUTE_DIRECTORY, FILE_ATTRIBUTE_READONLY, FILE_ATTRIBUTE_REPARSE_POINT, FILE_BASIC_INFO, FILE_ID_INFO, FILE_TYPE_CHAR, - FILE_TYPE_DISK, FILE_TYPE_PIPE, FILE_TYPE_UNKNOWN, + FILE_TYPE_DISK, FILE_TYPE_PIPE, FILE_TYPE_UNKNOWN, FileBasicInfo, FileIdInfo, + GetFileInformationByHandle, GetFileInformationByHandleEx, GetFileType, }; use windows_sys::Win32::System::LibraryLoader::{GetProcAddress, LoadLibraryW}; use windows_sys::Win32::System::SystemServices::IO_REPARSE_TAG_SYMLINK; + use windows_sys::core::PCWSTR; pub const S_IFIFO: libc::c_int = 0o010000; pub const S_IFLNK: libc::c_int = 0o120000; @@ -78,7 +78,7 @@ pub mod windows { .encode_wide() .collect::>() .split(|&c| c == '.' as u16) - .last() + .next_back() .and_then(|s| String::from_utf16(s).ok()); if let Some(file_extension) = file_extension { @@ -94,7 +94,7 @@ pub mod windows { } } - extern "C" { + unsafe extern "C" { fn _get_osfhandle(fd: i32) -> libc::intptr_t; } @@ -116,7 +116,7 @@ pub mod windows { let h = h?; // reset stat? - let file_type = unsafe { GetFileType(h) }; + let file_type = unsafe { GetFileType(h as _) }; if file_type == FILE_TYPE_UNKNOWN { return Err(std::io::Error::last_os_error()); } @@ -138,10 +138,10 @@ pub mod windows { let mut basic_info: FILE_BASIC_INFO = unsafe { std::mem::zeroed() }; let mut id_info: FILE_ID_INFO = unsafe { std::mem::zeroed() }; - if unsafe { GetFileInformationByHandle(h, &mut info) } == 0 + if unsafe { GetFileInformationByHandle(h as _, &mut info) } == 0 || unsafe { GetFileInformationByHandleEx( - h, + h as _, FileBasicInfo, &mut basic_info as *mut _ as *mut _, std::mem::size_of_val(&basic_info) as u32, @@ -153,7 +153,7 @@ pub mod windows { let p_id_info = if unsafe { GetFileInformationByHandleEx( - h, + h as _, FileIdInfo, &mut id_info as *mut _ as *mut _, std::mem::size_of_val(&id_info) as u32, @@ -320,7 +320,7 @@ pub mod windows { .get_or_init(|| { let library_name = OsString::from("api-ms-win-core-file-l2-1-4").to_wide_with_nul(); let module = unsafe { LoadLibraryW(library_name.as_ptr()) }; - if module == 0 { + if module.is_null() { return None; } let name = CString::new("GetFileInformationByName").unwrap(); diff --git a/common/src/float_ops.rs b/common/src/float_ops.rs index 69ae8833a2..b3c90d0ac6 100644 --- a/common/src/float_ops.rs +++ b/common/src/float_ops.rs @@ -2,7 +2,7 @@ use malachite_bigint::{BigInt, ToBigInt}; use num_traits::{Float, Signed, ToPrimitive, Zero}; use std::f64; -pub fn ufrexp(value: f64) -> (f64, i32) { +pub fn decompose_float(value: f64) -> (f64, i32) { if 0.0 == value { (0.0, 0i32) } else { @@ -64,11 +64,7 @@ pub fn gt_int(value: f64, other_int: &BigInt) -> bool { } pub fn div(v1: f64, v2: f64) -> Option { - if v2 != 0.0 { - Some(v1 / v2) - } else { - None - } + if v2 != 0.0 { Some(v1 / v2) } else { None } } pub fn mod_(v1: f64, v2: f64) -> Option { @@ -125,10 +121,69 @@ pub fn nextafter(x: f64, y: f64) -> f64 { let b = x.to_bits(); let bits = if (y > x) == (x > 0.0) { b + 1 } else { b - 1 }; let ret = f64::from_bits(bits); - if ret == 0.0 { - ret.copysign(x) + if ret == 0.0 { ret.copysign(x) } else { ret } + } +} + +#[allow(clippy::float_cmp)] +pub fn nextafter_with_steps(x: f64, y: f64, steps: u64) -> f64 { + if x == y { + y + } else if x.is_nan() || y.is_nan() { + f64::NAN + } else if x >= f64::INFINITY { + f64::MAX + } else if x <= f64::NEG_INFINITY { + f64::MIN + } else if x == 0.0 { + f64::from_bits(1).copysign(y) + } else { + if steps == 0 { + return x; + } + + if x.is_nan() { + return x; + } + + if y.is_nan() { + return y; + } + + let sign_bit: u64 = 1 << 63; + + let mut ux = x.to_bits(); + let uy = y.to_bits(); + + let ax = ux & !sign_bit; + let ay = uy & !sign_bit; + + // If signs are different + if ((ux ^ uy) & sign_bit) != 0 { + return if ax + ay <= steps { + f64::from_bits(uy) + } else if ax < steps { + let result = (uy & sign_bit) | (steps - ax); + f64::from_bits(result) + } else { + ux -= steps; + f64::from_bits(ux) + }; + } + + // If signs are the same + if ax > ay { + if ax - ay >= steps { + ux -= steps; + f64::from_bits(ux) + } else { + f64::from_bits(uy) + } + } else if ay - ax >= steps { + ux += steps; + f64::from_bits(ux) } else { - ret + f64::from_bits(uy) } } } diff --git a/common/src/format.rs b/common/src/format.rs new file mode 100644 index 0000000000..4c1ce6c5c2 --- /dev/null +++ b/common/src/format.rs @@ -0,0 +1,1336 @@ +// cspell:ignore ddfe +use itertools::{Itertools, PeekingNext}; +use malachite_bigint::{BigInt, Sign}; +use num_traits::FromPrimitive; +use num_traits::{Signed, cast::ToPrimitive}; +use rustpython_literal::float; +use rustpython_literal::format::Case; +use std::ops::Deref; +use std::{cmp, str::FromStr}; + +use crate::wtf8::{CodePoint, Wtf8, Wtf8Buf}; + +trait FormatParse { + fn parse(text: &Wtf8) -> (Option, &Wtf8) + where + Self: Sized; +} + +#[derive(Debug, Copy, Clone, PartialEq)] +#[repr(u8)] +pub enum FormatConversion { + Str = b's', + Repr = b'r', + Ascii = b'b', + Bytes = b'a', +} + +impl FormatParse for FormatConversion { + fn parse(text: &Wtf8) -> (Option, &Wtf8) { + let Some(conversion) = Self::from_string(text) else { + return (None, text); + }; + let mut chars = text.code_points(); + chars.next(); // Consume the bang + chars.next(); // Consume one r,s,a char + (Some(conversion), chars.as_wtf8()) + } +} + +impl FormatConversion { + pub fn from_char(c: CodePoint) -> Option { + match c.to_char_lossy() { + 's' => Some(FormatConversion::Str), + 'r' => Some(FormatConversion::Repr), + 'a' => Some(FormatConversion::Ascii), + 'b' => Some(FormatConversion::Bytes), + _ => None, + } + } + + fn from_string(text: &Wtf8) -> Option { + let mut chars = text.code_points(); + if chars.next()? != '!' { + return None; + } + + FormatConversion::from_char(chars.next()?) + } +} + +#[derive(Debug, Copy, Clone, PartialEq)] +pub enum FormatAlign { + Left, + Right, + AfterSign, + Center, +} + +impl FormatAlign { + fn from_char(c: CodePoint) -> Option { + match c.to_char_lossy() { + '<' => Some(FormatAlign::Left), + '>' => Some(FormatAlign::Right), + '=' => Some(FormatAlign::AfterSign), + '^' => Some(FormatAlign::Center), + _ => None, + } + } +} + +impl FormatParse for FormatAlign { + fn parse(text: &Wtf8) -> (Option, &Wtf8) { + let mut chars = text.code_points(); + if let Some(maybe_align) = chars.next().and_then(Self::from_char) { + (Some(maybe_align), chars.as_wtf8()) + } else { + (None, text) + } + } +} + +#[derive(Debug, Copy, Clone, PartialEq)] +pub enum FormatSign { + Plus, + Minus, + MinusOrSpace, +} + +impl FormatParse for FormatSign { + fn parse(text: &Wtf8) -> (Option, &Wtf8) { + let mut chars = text.code_points(); + match chars.next().and_then(CodePoint::to_char) { + Some('-') => (Some(Self::Minus), chars.as_wtf8()), + Some('+') => (Some(Self::Plus), chars.as_wtf8()), + Some(' ') => (Some(Self::MinusOrSpace), chars.as_wtf8()), + _ => (None, text), + } + } +} + +#[derive(Debug, PartialEq)] +pub enum FormatGrouping { + Comma, + Underscore, +} + +impl FormatParse for FormatGrouping { + fn parse(text: &Wtf8) -> (Option, &Wtf8) { + let mut chars = text.code_points(); + match chars.next().and_then(CodePoint::to_char) { + Some('_') => (Some(Self::Underscore), chars.as_wtf8()), + Some(',') => (Some(Self::Comma), chars.as_wtf8()), + _ => (None, text), + } + } +} + +#[derive(Debug, PartialEq)] +pub enum FormatType { + String, + Binary, + Character, + Decimal, + Octal, + Number(Case), + Hex(Case), + Exponent(Case), + GeneralFormat(Case), + FixedPoint(Case), + Percentage, +} + +impl From<&FormatType> for char { + fn from(from: &FormatType) -> char { + match from { + FormatType::String => 's', + FormatType::Binary => 'b', + FormatType::Character => 'c', + FormatType::Decimal => 'd', + FormatType::Octal => 'o', + FormatType::Number(Case::Lower) => 'n', + FormatType::Number(Case::Upper) => 'N', + FormatType::Hex(Case::Lower) => 'x', + FormatType::Hex(Case::Upper) => 'X', + FormatType::Exponent(Case::Lower) => 'e', + FormatType::Exponent(Case::Upper) => 'E', + FormatType::GeneralFormat(Case::Lower) => 'g', + FormatType::GeneralFormat(Case::Upper) => 'G', + FormatType::FixedPoint(Case::Lower) => 'f', + FormatType::FixedPoint(Case::Upper) => 'F', + FormatType::Percentage => '%', + } + } +} + +impl FormatParse for FormatType { + fn parse(text: &Wtf8) -> (Option, &Wtf8) { + let mut chars = text.code_points(); + match chars.next().and_then(CodePoint::to_char) { + Some('s') => (Some(Self::String), chars.as_wtf8()), + Some('b') => (Some(Self::Binary), chars.as_wtf8()), + Some('c') => (Some(Self::Character), chars.as_wtf8()), + Some('d') => (Some(Self::Decimal), chars.as_wtf8()), + Some('o') => (Some(Self::Octal), chars.as_wtf8()), + Some('n') => (Some(Self::Number(Case::Lower)), chars.as_wtf8()), + Some('N') => (Some(Self::Number(Case::Upper)), chars.as_wtf8()), + Some('x') => (Some(Self::Hex(Case::Lower)), chars.as_wtf8()), + Some('X') => (Some(Self::Hex(Case::Upper)), chars.as_wtf8()), + Some('e') => (Some(Self::Exponent(Case::Lower)), chars.as_wtf8()), + Some('E') => (Some(Self::Exponent(Case::Upper)), chars.as_wtf8()), + Some('f') => (Some(Self::FixedPoint(Case::Lower)), chars.as_wtf8()), + Some('F') => (Some(Self::FixedPoint(Case::Upper)), chars.as_wtf8()), + Some('g') => (Some(Self::GeneralFormat(Case::Lower)), chars.as_wtf8()), + Some('G') => (Some(Self::GeneralFormat(Case::Upper)), chars.as_wtf8()), + Some('%') => (Some(Self::Percentage), chars.as_wtf8()), + _ => (None, text), + } + } +} + +#[derive(Debug, PartialEq)] +pub struct FormatSpec { + conversion: Option, + fill: Option, + align: Option, + sign: Option, + alternate_form: bool, + width: Option, + grouping_option: Option, + precision: Option, + format_type: Option, +} + +fn get_num_digits(text: &Wtf8) -> usize { + for (index, character) in text.code_point_indices() { + if !character.is_char_and(|c| c.is_ascii_digit()) { + return index; + } + } + text.len() +} + +fn parse_fill_and_align(text: &Wtf8) -> (Option, Option, &Wtf8) { + let char_indices: Vec<(usize, CodePoint)> = text.code_point_indices().take(3).collect(); + if char_indices.is_empty() { + (None, None, text) + } else if char_indices.len() == 1 { + let (maybe_align, remaining) = FormatAlign::parse(text); + (None, maybe_align, remaining) + } else { + let (maybe_align, remaining) = FormatAlign::parse(&text[char_indices[1].0..]); + if maybe_align.is_some() { + (Some(char_indices[0].1), maybe_align, remaining) + } else { + let (only_align, only_align_remaining) = FormatAlign::parse(text); + (None, only_align, only_align_remaining) + } + } +} + +fn parse_number(text: &Wtf8) -> Result<(Option, &Wtf8), FormatSpecError> { + let num_digits: usize = get_num_digits(text); + if num_digits == 0 { + return Ok((None, text)); + } + if let Some(num) = parse_usize(&text[..num_digits]) { + Ok((Some(num), &text[num_digits..])) + } else { + // NOTE: this condition is different from CPython + Err(FormatSpecError::DecimalDigitsTooMany) + } +} + +fn parse_alternate_form(text: &Wtf8) -> (bool, &Wtf8) { + let mut chars = text.code_points(); + match chars.next().and_then(CodePoint::to_char) { + Some('#') => (true, chars.as_wtf8()), + _ => (false, text), + } +} + +fn parse_zero(text: &Wtf8) -> (bool, &Wtf8) { + let mut chars = text.code_points(); + match chars.next().and_then(CodePoint::to_char) { + Some('0') => (true, chars.as_wtf8()), + _ => (false, text), + } +} + +fn parse_precision(text: &Wtf8) -> Result<(Option, &Wtf8), FormatSpecError> { + let mut chars = text.code_points(); + Ok(match chars.next().and_then(CodePoint::to_char) { + Some('.') => { + let (size, remaining) = parse_number(chars.as_wtf8())?; + if let Some(size) = size { + if size > i32::MAX as usize { + return Err(FormatSpecError::PrecisionTooBig); + } + (Some(size), remaining) + } else { + (None, text) + } + } + _ => (None, text), + }) +} + +impl FormatSpec { + pub fn parse(text: impl AsRef) -> Result { + Self::_parse(text.as_ref()) + } + fn _parse(text: &Wtf8) -> Result { + // get_integer in CPython + let (conversion, text) = FormatConversion::parse(text); + let (mut fill, mut align, text) = parse_fill_and_align(text); + let (sign, text) = FormatSign::parse(text); + let (alternate_form, text) = parse_alternate_form(text); + let (zero, text) = parse_zero(text); + let (width, text) = parse_number(text)?; + let (grouping_option, text) = FormatGrouping::parse(text); + let (precision, text) = parse_precision(text)?; + let (format_type, text) = FormatType::parse(text); + if !text.is_empty() { + return Err(FormatSpecError::InvalidFormatSpecifier); + } + + if zero && fill.is_none() { + fill.replace('0'.into()); + align = align.or(Some(FormatAlign::AfterSign)); + } + + Ok(FormatSpec { + conversion, + fill, + align, + sign, + alternate_form, + width, + grouping_option, + precision, + format_type, + }) + } + + fn compute_fill_string(fill_char: CodePoint, fill_chars_needed: i32) -> Wtf8Buf { + (0..fill_chars_needed).map(|_| fill_char).collect() + } + + fn add_magnitude_separators_for_char( + magnitude_str: String, + inter: i32, + sep: char, + disp_digit_cnt: i32, + ) -> String { + // Don't add separators to the floating decimal point of numbers + let mut parts = magnitude_str.splitn(2, '.'); + let magnitude_int_str = parts.next().unwrap().to_string(); + let dec_digit_cnt = magnitude_str.len() as i32 - magnitude_int_str.len() as i32; + let int_digit_cnt = disp_digit_cnt - dec_digit_cnt; + let mut result = FormatSpec::separate_integer(magnitude_int_str, inter, sep, int_digit_cnt); + if let Some(part) = parts.next() { + result.push_str(&format!(".{part}")) + } + result + } + + fn separate_integer( + magnitude_str: String, + inter: i32, + sep: char, + disp_digit_cnt: i32, + ) -> String { + let magnitude_len = magnitude_str.len() as i32; + let offset = (disp_digit_cnt % (inter + 1) == 0) as i32; + let disp_digit_cnt = disp_digit_cnt + offset; + let pad_cnt = disp_digit_cnt - magnitude_len; + let sep_cnt = disp_digit_cnt / (inter + 1); + let diff = pad_cnt - sep_cnt; + if pad_cnt > 0 && diff > 0 { + // separate with 0 padding + let padding = "0".repeat(diff as usize); + let padded_num = format!("{padding}{magnitude_str}"); + FormatSpec::insert_separator(padded_num, inter, sep, sep_cnt) + } else { + // separate without padding + let sep_cnt = (magnitude_len - 1) / inter; + FormatSpec::insert_separator(magnitude_str, inter, sep, sep_cnt) + } + } + + fn insert_separator(mut magnitude_str: String, inter: i32, sep: char, sep_cnt: i32) -> String { + let magnitude_len = magnitude_str.len() as i32; + for i in 1..sep_cnt + 1 { + magnitude_str.insert((magnitude_len - inter * i) as usize, sep); + } + magnitude_str + } + + fn validate_format(&self, default_format_type: FormatType) -> Result<(), FormatSpecError> { + let format_type = self.format_type.as_ref().unwrap_or(&default_format_type); + match (&self.grouping_option, format_type) { + ( + Some(FormatGrouping::Comma), + FormatType::String + | FormatType::Character + | FormatType::Binary + | FormatType::Octal + | FormatType::Hex(_) + | FormatType::Number(_), + ) => { + let ch = char::from(format_type); + Err(FormatSpecError::UnspecifiedFormat(',', ch)) + } + ( + Some(FormatGrouping::Underscore), + FormatType::String | FormatType::Character | FormatType::Number(_), + ) => { + let ch = char::from(format_type); + Err(FormatSpecError::UnspecifiedFormat('_', ch)) + } + _ => Ok(()), + } + } + + fn get_separator_interval(&self) -> usize { + match self.format_type { + Some(FormatType::Binary | FormatType::Octal | FormatType::Hex(_)) => 4, + Some(FormatType::Decimal | FormatType::Number(_) | FormatType::FixedPoint(_)) => 3, + None => 3, + _ => panic!("Separators only valid for numbers!"), + } + } + + fn add_magnitude_separators(&self, magnitude_str: String, prefix: &str) -> String { + match &self.grouping_option { + Some(fg) => { + let sep = match fg { + FormatGrouping::Comma => ',', + FormatGrouping::Underscore => '_', + }; + let inter = self.get_separator_interval().try_into().unwrap(); + let magnitude_len = magnitude_str.len(); + let width = self.width.unwrap_or(magnitude_len) as i32 - prefix.len() as i32; + let disp_digit_cnt = cmp::max(width, magnitude_len as i32); + FormatSpec::add_magnitude_separators_for_char( + magnitude_str, + inter, + sep, + disp_digit_cnt, + ) + } + None => magnitude_str, + } + } + + pub fn format_bool(&self, input: bool) -> Result { + let x = u8::from(input); + match &self.format_type { + Some( + FormatType::Binary + | FormatType::Decimal + | FormatType::Octal + | FormatType::Number(Case::Lower) + | FormatType::Hex(_) + | FormatType::GeneralFormat(_) + | FormatType::Character, + ) => self.format_int(&BigInt::from_u8(x).unwrap()), + Some(FormatType::Exponent(_) | FormatType::FixedPoint(_) | FormatType::Percentage) => { + self.format_float(x as f64) + } + None => { + let first_letter = (input.to_string().as_bytes()[0] as char).to_uppercase(); + Ok(first_letter.collect::() + &input.to_string()[1..]) + } + _ => Err(FormatSpecError::InvalidFormatSpecifier), + } + } + + pub fn format_float(&self, num: f64) -> Result { + self.validate_format(FormatType::FixedPoint(Case::Lower))?; + let precision = self.precision.unwrap_or(6); + let magnitude = num.abs(); + let raw_magnitude_str: Result = match &self.format_type { + Some(FormatType::FixedPoint(case)) => Ok(float::format_fixed( + precision, + magnitude, + *case, + self.alternate_form, + )), + Some(FormatType::Decimal) + | Some(FormatType::Binary) + | Some(FormatType::Octal) + | Some(FormatType::Hex(_)) + | Some(FormatType::String) + | Some(FormatType::Character) + | Some(FormatType::Number(Case::Upper)) => { + let ch = char::from(self.format_type.as_ref().unwrap()); + Err(FormatSpecError::UnknownFormatCode(ch, "float")) + } + Some(FormatType::GeneralFormat(case)) | Some(FormatType::Number(case)) => { + let precision = if precision == 0 { 1 } else { precision }; + Ok(float::format_general( + precision, + magnitude, + *case, + self.alternate_form, + false, + )) + } + Some(FormatType::Exponent(case)) => Ok(float::format_exponent( + precision, + magnitude, + *case, + self.alternate_form, + )), + Some(FormatType::Percentage) => match magnitude { + magnitude if magnitude.is_nan() => Ok("nan%".to_owned()), + magnitude if magnitude.is_infinite() => Ok("inf%".to_owned()), + _ => { + let result = format!("{:.*}", precision, magnitude * 100.0); + let point = float::decimal_point_or_empty(precision, self.alternate_form); + Ok(format!("{result}{point}%")) + } + }, + None => match magnitude { + magnitude if magnitude.is_nan() => Ok("nan".to_owned()), + magnitude if magnitude.is_infinite() => Ok("inf".to_owned()), + _ => match self.precision { + Some(precision) => Ok(float::format_general( + precision, + magnitude, + Case::Lower, + self.alternate_form, + true, + )), + None => Ok(float::to_string(magnitude)), + }, + }, + }; + let format_sign = self.sign.unwrap_or(FormatSign::Minus); + let sign_str = if num.is_sign_negative() && !num.is_nan() { + "-" + } else { + match format_sign { + FormatSign::Plus => "+", + FormatSign::Minus => "", + FormatSign::MinusOrSpace => " ", + } + }; + let magnitude_str = self.add_magnitude_separators(raw_magnitude_str?, sign_str); + self.format_sign_and_align(&AsciiStr::new(&magnitude_str), sign_str, FormatAlign::Right) + } + + #[inline] + fn format_int_radix(&self, magnitude: BigInt, radix: u32) -> Result { + match self.precision { + Some(_) => Err(FormatSpecError::PrecisionNotAllowed), + None => Ok(magnitude.to_str_radix(radix)), + } + } + + pub fn format_int(&self, num: &BigInt) -> Result { + self.validate_format(FormatType::Decimal)?; + let magnitude = num.abs(); + let prefix = if self.alternate_form { + match self.format_type { + Some(FormatType::Binary) => "0b", + Some(FormatType::Octal) => "0o", + Some(FormatType::Hex(Case::Lower)) => "0x", + Some(FormatType::Hex(Case::Upper)) => "0X", + _ => "", + } + } else { + "" + }; + let raw_magnitude_str = match self.format_type { + Some(FormatType::Binary) => self.format_int_radix(magnitude, 2), + Some(FormatType::Decimal) => self.format_int_radix(magnitude, 10), + Some(FormatType::Octal) => self.format_int_radix(magnitude, 8), + Some(FormatType::Hex(Case::Lower)) => self.format_int_radix(magnitude, 16), + Some(FormatType::Hex(Case::Upper)) => match self.precision { + Some(_) => Err(FormatSpecError::PrecisionNotAllowed), + None => { + let mut result = magnitude.to_str_radix(16); + result.make_ascii_uppercase(); + Ok(result) + } + }, + Some(FormatType::Number(Case::Lower)) => self.format_int_radix(magnitude, 10), + Some(FormatType::Number(Case::Upper)) => { + Err(FormatSpecError::UnknownFormatCode('N', "int")) + } + Some(FormatType::String) => Err(FormatSpecError::UnknownFormatCode('s', "int")), + Some(FormatType::Character) => match (self.sign, self.alternate_form) { + (Some(_), _) => Err(FormatSpecError::NotAllowed("Sign")), + (_, true) => Err(FormatSpecError::NotAllowed("Alternate form (#)")), + (_, _) => match num.to_u32() { + Some(n) if n <= 0x10ffff => Ok(std::char::from_u32(n).unwrap().to_string()), + Some(_) | None => Err(FormatSpecError::CodeNotInRange), + }, + }, + Some(FormatType::GeneralFormat(_)) + | Some(FormatType::FixedPoint(_)) + | Some(FormatType::Exponent(_)) + | Some(FormatType::Percentage) => match num.to_f64() { + Some(float) => return self.format_float(float), + _ => Err(FormatSpecError::UnableToConvert), + }, + None => self.format_int_radix(magnitude, 10), + }?; + let format_sign = self.sign.unwrap_or(FormatSign::Minus); + let sign_str = match num.sign() { + Sign::Minus => "-", + _ => match format_sign { + FormatSign::Plus => "+", + FormatSign::Minus => "", + FormatSign::MinusOrSpace => " ", + }, + }; + let sign_prefix = format!("{sign_str}{prefix}"); + let magnitude_str = self.add_magnitude_separators(raw_magnitude_str, &sign_prefix); + self.format_sign_and_align( + &AsciiStr::new(&magnitude_str), + &sign_prefix, + FormatAlign::Right, + ) + } + + pub fn format_string(&self, s: &T) -> Result + where + T: CharLen + Deref, + { + self.validate_format(FormatType::String)?; + match self.format_type { + Some(FormatType::String) | None => self + .format_sign_and_align(s, "", FormatAlign::Left) + .map(|mut value| { + if let Some(precision) = self.precision { + value.truncate(precision); + } + value + }), + _ => { + let ch = char::from(self.format_type.as_ref().unwrap()); + Err(FormatSpecError::UnknownFormatCode(ch, "str")) + } + } + } + + fn format_sign_and_align( + &self, + magnitude_str: &T, + sign_str: &str, + default_align: FormatAlign, + ) -> Result + where + T: CharLen + Deref, + { + let align = self.align.unwrap_or(default_align); + + let num_chars = magnitude_str.char_len(); + let fill_char = self.fill.unwrap_or(' '.into()); + let fill_chars_needed: i32 = self.width.map_or(0, |w| { + cmp::max(0, (w as i32) - (num_chars as i32) - (sign_str.len() as i32)) + }); + + let magnitude_str = magnitude_str.deref(); + Ok(match align { + FormatAlign::Left => format!( + "{}{}{}", + sign_str, + magnitude_str, + FormatSpec::compute_fill_string(fill_char, fill_chars_needed) + ), + FormatAlign::Right => format!( + "{}{}{}", + FormatSpec::compute_fill_string(fill_char, fill_chars_needed), + sign_str, + magnitude_str + ), + FormatAlign::AfterSign => format!( + "{}{}{}", + sign_str, + FormatSpec::compute_fill_string(fill_char, fill_chars_needed), + magnitude_str + ), + FormatAlign::Center => { + let left_fill_chars_needed = fill_chars_needed / 2; + let right_fill_chars_needed = fill_chars_needed - left_fill_chars_needed; + let left_fill_string = + FormatSpec::compute_fill_string(fill_char, left_fill_chars_needed); + let right_fill_string = + FormatSpec::compute_fill_string(fill_char, right_fill_chars_needed); + format!("{left_fill_string}{sign_str}{magnitude_str}{right_fill_string}") + } + }) + } +} + +pub trait CharLen { + /// Returns the number of characters in the text + fn char_len(&self) -> usize; +} + +struct AsciiStr<'a> { + inner: &'a str, +} + +impl<'a> AsciiStr<'a> { + fn new(inner: &'a str) -> Self { + Self { inner } + } +} + +impl CharLen for AsciiStr<'_> { + fn char_len(&self) -> usize { + self.inner.len() + } +} + +impl Deref for AsciiStr<'_> { + type Target = str; + fn deref(&self) -> &Self::Target { + self.inner + } +} + +#[derive(Debug, PartialEq)] +pub enum FormatSpecError { + DecimalDigitsTooMany, + PrecisionTooBig, + InvalidFormatSpecifier, + UnspecifiedFormat(char, char), + UnknownFormatCode(char, &'static str), + PrecisionNotAllowed, + NotAllowed(&'static str), + UnableToConvert, + CodeNotInRange, + NotImplemented(char, &'static str), +} + +#[derive(Debug, PartialEq)] +pub enum FormatParseError { + UnmatchedBracket, + MissingStartBracket, + UnescapedStartBracketInLiteral, + InvalidFormatSpecifier, + UnknownConversion, + EmptyAttribute, + MissingRightBracket, + InvalidCharacterAfterRightBracket, +} + +impl FromStr for FormatSpec { + type Err = FormatSpecError; + fn from_str(s: &str) -> Result { + FormatSpec::parse(s) + } +} + +#[derive(Debug, PartialEq)] +pub enum FieldNamePart { + Attribute(Wtf8Buf), + Index(usize), + StringIndex(Wtf8Buf), +} + +impl FieldNamePart { + fn parse_part( + chars: &mut impl PeekingNext, + ) -> Result, FormatParseError> { + chars + .next() + .map(|ch| match ch.to_char_lossy() { + '.' => { + let mut attribute = Wtf8Buf::new(); + for ch in chars.peeking_take_while(|ch| *ch != '.' && *ch != '[') { + attribute.push(ch); + } + if attribute.is_empty() { + Err(FormatParseError::EmptyAttribute) + } else { + Ok(FieldNamePart::Attribute(attribute)) + } + } + '[' => { + let mut index = Wtf8Buf::new(); + for ch in chars { + if ch == ']' { + return if index.is_empty() { + Err(FormatParseError::EmptyAttribute) + } else if let Some(index) = parse_usize(&index) { + Ok(FieldNamePart::Index(index)) + } else { + Ok(FieldNamePart::StringIndex(index)) + }; + } + index.push(ch); + } + Err(FormatParseError::MissingRightBracket) + } + _ => Err(FormatParseError::InvalidCharacterAfterRightBracket), + }) + .transpose() + } +} + +#[derive(Debug, PartialEq)] +pub enum FieldType { + Auto, + Index(usize), + Keyword(Wtf8Buf), +} + +#[derive(Debug, PartialEq)] +pub struct FieldName { + pub field_type: FieldType, + pub parts: Vec, +} + +fn parse_usize(s: &Wtf8) -> Option { + s.as_str().ok().and_then(|s| s.parse().ok()) +} + +impl FieldName { + pub fn parse(text: &Wtf8) -> Result { + let mut chars = text.code_points().peekable(); + let first: Wtf8Buf = chars + .peeking_take_while(|ch| *ch != '.' && *ch != '[') + .collect(); + + let field_type = if first.is_empty() { + FieldType::Auto + } else if let Some(index) = parse_usize(&first) { + FieldType::Index(index) + } else { + FieldType::Keyword(first) + }; + + let mut parts = Vec::new(); + while let Some(part) = FieldNamePart::parse_part(&mut chars)? { + parts.push(part) + } + + Ok(FieldName { field_type, parts }) + } +} + +#[derive(Debug, PartialEq)] +pub enum FormatPart { + Field { + field_name: Wtf8Buf, + conversion_spec: Option, + format_spec: Wtf8Buf, + }, + Literal(Wtf8Buf), +} + +#[derive(Debug, PartialEq)] +pub struct FormatString { + pub format_parts: Vec, +} + +impl FormatString { + fn parse_literal_single(text: &Wtf8) -> Result<(CodePoint, &Wtf8), FormatParseError> { + let mut chars = text.code_points(); + // This should never be called with an empty str + let first_char = chars.next().unwrap(); + // isn't this detectable only with bytes operation? + if first_char == '{' || first_char == '}' { + let maybe_next_char = chars.next(); + // if we see a bracket, it has to be escaped by doubling up to be in a literal + return if maybe_next_char.is_none() || maybe_next_char.unwrap() != first_char { + Err(FormatParseError::UnescapedStartBracketInLiteral) + } else { + Ok((first_char, chars.as_wtf8())) + }; + } + Ok((first_char, chars.as_wtf8())) + } + + fn parse_literal(text: &Wtf8) -> Result<(FormatPart, &Wtf8), FormatParseError> { + let mut cur_text = text; + let mut result_string = Wtf8Buf::new(); + while !cur_text.is_empty() { + match FormatString::parse_literal_single(cur_text) { + Ok((next_char, remaining)) => { + result_string.push(next_char); + cur_text = remaining; + } + Err(err) => { + return if !result_string.is_empty() { + Ok((FormatPart::Literal(result_string), cur_text)) + } else { + Err(err) + }; + } + } + } + Ok((FormatPart::Literal(result_string), "".as_ref())) + } + + fn parse_part_in_brackets(text: &Wtf8) -> Result { + let mut chars = text.code_points().peekable(); + + let mut left = Wtf8Buf::new(); + let mut right = Wtf8Buf::new(); + + let mut split = false; + let mut selected = &mut left; + let mut inside_brackets = false; + + while let Some(char) = chars.next() { + if char == '[' { + inside_brackets = true; + + selected.push(char); + + while let Some(next_char) = chars.next() { + selected.push(next_char); + + if next_char == ']' { + inside_brackets = false; + break; + } + if chars.peek().is_none() { + return Err(FormatParseError::MissingRightBracket); + } + } + } else if char == ':' && !split && !inside_brackets { + split = true; + selected = &mut right; + } else { + selected.push(char); + } + } + + // before the comma is a keyword or arg index, after the comma is maybe a spec. + let arg_part: &Wtf8 = &left; + + let format_spec = if split { right } else { Wtf8Buf::new() }; + + // left can still be the conversion (!r, !s, !a) + let parts: Vec<&Wtf8> = arg_part.splitn(2, "!".as_ref()).collect(); + // before the bang is a keyword or arg index, after the comma is maybe a conversion spec. + let arg_part = parts[0]; + + let conversion_spec = parts + .get(1) + .map(|conversion| { + // conversions are only every one character + conversion + .code_points() + .exactly_one() + .map_err(|_| FormatParseError::UnknownConversion) + }) + .transpose()?; + + Ok(FormatPart::Field { + field_name: arg_part.to_owned(), + conversion_spec, + format_spec, + }) + } + + fn parse_spec(text: &Wtf8) -> Result<(FormatPart, &Wtf8), FormatParseError> { + let mut nested = false; + let mut end_bracket_pos = None; + let mut left = Wtf8Buf::new(); + + // There may be one layer nesting brackets in spec + for (idx, c) in text.code_point_indices() { + if idx == 0 { + if c != '{' { + return Err(FormatParseError::MissingStartBracket); + } + } else if c == '{' { + if nested { + return Err(FormatParseError::InvalidFormatSpecifier); + } else { + nested = true; + left.push(c); + continue; + } + } else if c == '}' { + if nested { + nested = false; + left.push(c); + continue; + } else { + end_bracket_pos = Some(idx); + break; + } + } else { + left.push(c); + } + } + if let Some(pos) = end_bracket_pos { + let right = &text[pos..]; + let format_part = FormatString::parse_part_in_brackets(&left)?; + Ok((format_part, &right[1..])) + } else { + Err(FormatParseError::UnmatchedBracket) + } + } +} + +pub trait FromTemplate<'a>: Sized { + type Err; + fn from_str(s: &'a Wtf8) -> Result; +} + +impl<'a> FromTemplate<'a> for FormatString { + type Err = FormatParseError; + + fn from_str(text: &'a Wtf8) -> Result { + let mut cur_text: &Wtf8 = text; + let mut parts: Vec = Vec::new(); + while !cur_text.is_empty() { + // Try to parse both literals and bracketed format parts until we + // run out of text + cur_text = FormatString::parse_literal(cur_text) + .or_else(|_| FormatString::parse_spec(cur_text)) + .map(|(part, new_text)| { + parts.push(part); + new_text + })?; + } + Ok(FormatString { + format_parts: parts, + }) + } +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn test_fill_and_align() { + let parse_fill_and_align = |text| { + let (fill, align, rest) = parse_fill_and_align(str::as_ref(text)); + ( + fill.and_then(CodePoint::to_char), + align, + rest.as_str().unwrap(), + ) + }; + assert_eq!( + parse_fill_and_align(" <"), + (Some(' '), Some(FormatAlign::Left), "") + ); + assert_eq!( + parse_fill_and_align(" <22"), + (Some(' '), Some(FormatAlign::Left), "22") + ); + assert_eq!( + parse_fill_and_align("<22"), + (None, Some(FormatAlign::Left), "22") + ); + assert_eq!( + parse_fill_and_align(" ^^"), + (Some(' '), Some(FormatAlign::Center), "^") + ); + assert_eq!( + parse_fill_and_align("==="), + (Some('='), Some(FormatAlign::AfterSign), "=") + ); + } + + #[test] + fn test_width_only() { + let expected = Ok(FormatSpec { + conversion: None, + fill: None, + align: None, + sign: None, + alternate_form: false, + width: Some(33), + grouping_option: None, + precision: None, + format_type: None, + }); + assert_eq!(FormatSpec::parse("33"), expected); + } + + #[test] + fn test_fill_and_width() { + let expected = Ok(FormatSpec { + conversion: None, + fill: Some('<'.into()), + align: Some(FormatAlign::Right), + sign: None, + alternate_form: false, + width: Some(33), + grouping_option: None, + precision: None, + format_type: None, + }); + assert_eq!(FormatSpec::parse("<>33"), expected); + } + + #[test] + fn test_all() { + let expected = Ok(FormatSpec { + conversion: None, + fill: Some('<'.into()), + align: Some(FormatAlign::Right), + sign: Some(FormatSign::Minus), + alternate_form: true, + width: Some(23), + grouping_option: Some(FormatGrouping::Comma), + precision: Some(11), + format_type: Some(FormatType::Binary), + }); + assert_eq!(FormatSpec::parse("<>-#23,.11b"), expected); + } + + fn format_bool(text: &str, value: bool) -> Result { + FormatSpec::parse(text).and_then(|spec| spec.format_bool(value)) + } + + #[test] + fn test_format_bool() { + assert_eq!(format_bool("b", true), Ok("1".to_owned())); + assert_eq!(format_bool("b", false), Ok("0".to_owned())); + assert_eq!(format_bool("d", true), Ok("1".to_owned())); + assert_eq!(format_bool("d", false), Ok("0".to_owned())); + assert_eq!(format_bool("o", true), Ok("1".to_owned())); + assert_eq!(format_bool("o", false), Ok("0".to_owned())); + assert_eq!(format_bool("n", true), Ok("1".to_owned())); + assert_eq!(format_bool("n", false), Ok("0".to_owned())); + assert_eq!(format_bool("x", true), Ok("1".to_owned())); + assert_eq!(format_bool("x", false), Ok("0".to_owned())); + assert_eq!(format_bool("X", true), Ok("1".to_owned())); + assert_eq!(format_bool("X", false), Ok("0".to_owned())); + assert_eq!(format_bool("g", true), Ok("1".to_owned())); + assert_eq!(format_bool("g", false), Ok("0".to_owned())); + assert_eq!(format_bool("G", true), Ok("1".to_owned())); + assert_eq!(format_bool("G", false), Ok("0".to_owned())); + assert_eq!(format_bool("c", true), Ok("\x01".to_owned())); + assert_eq!(format_bool("c", false), Ok("\x00".to_owned())); + assert_eq!(format_bool("e", true), Ok("1.000000e+00".to_owned())); + assert_eq!(format_bool("e", false), Ok("0.000000e+00".to_owned())); + assert_eq!(format_bool("E", true), Ok("1.000000E+00".to_owned())); + assert_eq!(format_bool("E", false), Ok("0.000000E+00".to_owned())); + assert_eq!(format_bool("f", true), Ok("1.000000".to_owned())); + assert_eq!(format_bool("f", false), Ok("0.000000".to_owned())); + assert_eq!(format_bool("F", true), Ok("1.000000".to_owned())); + assert_eq!(format_bool("F", false), Ok("0.000000".to_owned())); + assert_eq!(format_bool("%", true), Ok("100.000000%".to_owned())); + assert_eq!(format_bool("%", false), Ok("0.000000%".to_owned())); + } + + #[test] + fn test_format_int() { + assert_eq!( + FormatSpec::parse("d") + .unwrap() + .format_int(&BigInt::from_bytes_be(Sign::Plus, b"\x10")), + Ok("16".to_owned()) + ); + assert_eq!( + FormatSpec::parse("x") + .unwrap() + .format_int(&BigInt::from_bytes_be(Sign::Plus, b"\x10")), + Ok("10".to_owned()) + ); + assert_eq!( + FormatSpec::parse("b") + .unwrap() + .format_int(&BigInt::from_bytes_be(Sign::Plus, b"\x10")), + Ok("10000".to_owned()) + ); + assert_eq!( + FormatSpec::parse("o") + .unwrap() + .format_int(&BigInt::from_bytes_be(Sign::Plus, b"\x10")), + Ok("20".to_owned()) + ); + assert_eq!( + FormatSpec::parse("+d") + .unwrap() + .format_int(&BigInt::from_bytes_be(Sign::Plus, b"\x10")), + Ok("+16".to_owned()) + ); + assert_eq!( + FormatSpec::parse("^ 5d") + .unwrap() + .format_int(&BigInt::from_bytes_be(Sign::Minus, b"\x10")), + Ok(" -16 ".to_owned()) + ); + assert_eq!( + FormatSpec::parse("0>+#10x") + .unwrap() + .format_int(&BigInt::from_bytes_be(Sign::Plus, b"\x10")), + Ok("00000+0x10".to_owned()) + ); + } + + #[test] + fn test_format_int_sep() { + let spec = FormatSpec::parse(",").expect(""); + assert_eq!(spec.grouping_option, Some(FormatGrouping::Comma)); + assert_eq!( + spec.format_int(&BigInt::from_str("1234567890123456789012345678").unwrap()), + Ok("1,234,567,890,123,456,789,012,345,678".to_owned()) + ); + } + + #[test] + fn test_format_parse() { + let expected = Ok(FormatString { + format_parts: vec![ + FormatPart::Literal("abcd".into()), + FormatPart::Field { + field_name: "1".into(), + conversion_spec: None, + format_spec: "".into(), + }, + FormatPart::Literal(":".into()), + FormatPart::Field { + field_name: "key".into(), + conversion_spec: None, + format_spec: "".into(), + }, + ], + }); + + assert_eq!(FormatString::from_str("abcd{1}:{key}".as_ref()), expected); + } + + #[test] + fn test_format_parse_multi_byte_char() { + assert!(FormatString::from_str("{a:%ЫйЯЧ}".as_ref()).is_ok()); + } + + #[test] + fn test_format_parse_fail() { + assert_eq!( + FormatString::from_str("{s".as_ref()), + Err(FormatParseError::UnmatchedBracket) + ); + } + + #[test] + fn test_square_brackets_inside_format() { + assert_eq!( + FormatString::from_str("{[:123]}".as_ref()), + Ok(FormatString { + format_parts: vec![FormatPart::Field { + field_name: "[:123]".into(), + conversion_spec: None, + format_spec: "".into(), + }], + }), + ); + + assert_eq!(FormatString::from_str("{asdf[:123]asdf}".as_ref()), { + Ok(FormatString { + format_parts: vec![FormatPart::Field { + field_name: "asdf[:123]asdf".into(), + conversion_spec: None, + format_spec: "".into(), + }], + }) + }); + + assert_eq!(FormatString::from_str("{[1234}".as_ref()), { + Err(FormatParseError::MissingRightBracket) + }); + } + + #[test] + fn test_format_parse_escape() { + let expected = Ok(FormatString { + format_parts: vec![ + FormatPart::Literal("{".into()), + FormatPart::Field { + field_name: "key".into(), + conversion_spec: None, + format_spec: "".into(), + }, + FormatPart::Literal("}ddfe".into()), + ], + }); + + assert_eq!(FormatString::from_str("{{{key}}}ddfe".as_ref()), expected); + } + + #[test] + fn test_format_invalid_specification() { + assert_eq!( + FormatSpec::parse("%3"), + Err(FormatSpecError::InvalidFormatSpecifier) + ); + assert_eq!( + FormatSpec::parse(".2fa"), + Err(FormatSpecError::InvalidFormatSpecifier) + ); + assert_eq!( + FormatSpec::parse("ds"), + Err(FormatSpecError::InvalidFormatSpecifier) + ); + assert_eq!( + FormatSpec::parse("x+"), + Err(FormatSpecError::InvalidFormatSpecifier) + ); + assert_eq!( + FormatSpec::parse("b4"), + Err(FormatSpecError::InvalidFormatSpecifier) + ); + assert_eq!( + FormatSpec::parse("o!"), + Err(FormatSpecError::InvalidFormatSpecifier) + ); + assert_eq!( + FormatSpec::parse("d "), + Err(FormatSpecError::InvalidFormatSpecifier) + ); + } + + #[test] + fn test_parse_field_name() { + let parse = |s: &str| FieldName::parse(s.as_ref()); + assert_eq!( + parse(""), + Ok(FieldName { + field_type: FieldType::Auto, + parts: Vec::new(), + }) + ); + assert_eq!( + parse("0"), + Ok(FieldName { + field_type: FieldType::Index(0), + parts: Vec::new(), + }) + ); + assert_eq!( + parse("key"), + Ok(FieldName { + field_type: FieldType::Keyword("key".into()), + parts: Vec::new(), + }) + ); + assert_eq!( + parse("key.attr[0][string]"), + Ok(FieldName { + field_type: FieldType::Keyword("key".into()), + parts: vec![ + FieldNamePart::Attribute("attr".into()), + FieldNamePart::Index(0), + FieldNamePart::StringIndex("string".into()) + ], + }) + ); + assert_eq!(parse("key.."), Err(FormatParseError::EmptyAttribute)); + assert_eq!(parse("key[]"), Err(FormatParseError::EmptyAttribute)); + assert_eq!(parse("key["), Err(FormatParseError::MissingRightBracket)); + assert_eq!( + parse("key[0]after"), + Err(FormatParseError::InvalidCharacterAfterRightBracket) + ); + } +} diff --git a/common/src/hash.rs b/common/src/hash.rs index 4e87eff799..9fea1e717e 100644 --- a/common/src/hash.rs +++ b/common/src/hash.rs @@ -37,15 +37,6 @@ impl BuildHasher for HashSecret { } } -impl rand::distributions::Distribution for rand::distributions::Standard { - fn sample(&self, rng: &mut R) -> HashSecret { - HashSecret { - k0: rng.gen(), - k1: rng.gen(), - } - } -} - impl HashSecret { pub fn new(seed: u32) -> Self { let mut buf = [0u8; 16]; @@ -62,14 +53,14 @@ impl HashSecret { fix_sentinel(mod_int(self.hash_one(data) as _)) } - pub fn hash_iter<'a, T: 'a, I, F, E>(&self, iter: I, hashf: F) -> Result + pub fn hash_iter<'a, T: 'a, I, F, E>(&self, iter: I, hash_func: F) -> Result where I: IntoIterator, F: Fn(&'a T) -> Result, { let mut hasher = self.build_hasher(); for element in iter { - let item_hash = hashf(element)?; + let item_hash = hash_func(element)?; item_hash.hash(&mut hasher); } Ok(fix_sentinel(mod_int(hasher.finish() as PyHash))) @@ -106,7 +97,7 @@ pub fn hash_float(value: f64) -> Option { }; } - let frexp = super::float_ops::ufrexp(value); + let frexp = super::float_ops::decompose_float(value); // process 28 bits at a time; this should work well both for binary // and hexadecimal floating point. @@ -114,7 +105,7 @@ pub fn hash_float(value: f64) -> Option { let mut e = frexp.1; let mut x: PyUHash = 0; while m != 0.0 { - x = ((x << 28) & MODULUS) | x >> (BITS - 28); + x = ((x << 28) & MODULUS) | (x >> (BITS - 28)); m *= 268_435_456.0; // 2**28 e -= 28; let y = m as PyUHash; // pull out integer part @@ -132,7 +123,7 @@ pub fn hash_float(value: f64) -> Option { } else { BITS32 - 1 - ((-1 - e) % BITS32) }; - x = ((x << e) & MODULUS) | x >> (BITS32 - e); + x = ((x << e) & MODULUS) | (x >> (BITS32 - e)); Some(fix_sentinel(x as PyHash * value.signum() as PyHash)) } @@ -148,13 +139,14 @@ pub fn hash_bigint(value: &BigInt) -> PyHash { fix_sentinel(ret) } +#[inline] +pub fn hash_usize(data: usize) -> PyHash { + fix_sentinel(mod_int(data as i64)) +} + #[inline(always)] pub fn fix_sentinel(x: PyHash) -> PyHash { - if x == SENTINEL { - -2 - } else { - x - } + if x == SENTINEL { -2 } else { x } } #[inline] diff --git a/common/src/int.rs b/common/src/int.rs index 2de993b59b..00b5231dff 100644 --- a/common/src/int.rs +++ b/common/src/int.rs @@ -1,4 +1,3 @@ -use bstr::ByteSlice; use malachite_base::{num::conversion::traits::RoundingInto, rounding_modes::RoundingMode}; use malachite_bigint::{BigInt, BigUint, Sign}; use malachite_q::Rational; @@ -32,7 +31,7 @@ pub fn float_to_ratio(value: f64) -> Option<(BigInt, BigInt)> { pub fn bytes_to_int(lit: &[u8], mut base: u32) -> Option { // split sign - let mut lit = lit.trim(); + let mut lit = lit.trim_ascii(); let sign = match lit.first()? { b'+' => Some(Sign::Plus), b'-' => Some(Sign::Minus), @@ -51,7 +50,7 @@ pub fn bytes_to_int(lit: &[u8], mut base: u32) -> Option { base = parsed; true } else { - if let [_first, ref others @ .., last] = lit { + if let [_first, others @ .., last] = lit { let is_zero = others.iter().all(|&c| c == b'0' || c == b'_') && *last == b'0'; if !is_zero { @@ -61,9 +60,9 @@ pub fn bytes_to_int(lit: &[u8], mut base: u32) -> Option { return Some(BigInt::zero()); } } - 16 => lit.get(1).map_or(false, |&b| matches!(b, b'x' | b'X')), - 2 => lit.get(1).map_or(false, |&b| matches!(b, b'b' | b'B')), - 8 => lit.get(1).map_or(false, |&b| matches!(b, b'o' | b'O')), + 16 => lit.get(1).is_some_and(|&b| matches!(b, b'x' | b'X')), + 2 => lit.get(1).is_some_and(|&b| matches!(b, b'b' | b'B')), + 8 => lit.get(1).is_some_and(|&b| matches!(b, b'o' | b'O')), _ => false, } } else { diff --git a/common/src/lib.rs b/common/src/lib.rs index 8a94b939b5..c99ba0286a 100644 --- a/common/src/lib.rs +++ b/common/src/lib.rs @@ -1,5 +1,7 @@ //! A crate to hold types and functions common to all rustpython components. +#![cfg_attr(all(target_os = "wasi", target_env = "p2"), feature(wasip2))] + #[macro_use] mod macros; pub use macros::*; @@ -7,18 +9,20 @@ pub use macros::*; pub mod atomic; pub mod borrow; pub mod boxvec; -pub mod cmp; +pub mod cformat; #[cfg(any(unix, windows, target_os = "wasi"))] pub mod crt_fd; pub mod encodings; #[cfg(any(not(target_arch = "wasm32"), target_os = "wasi"))] pub mod fileutils; pub mod float_ops; +pub mod format; pub mod hash; pub mod int; pub mod linked_list; pub mod lock; pub mod os; +pub mod rand; pub mod rc; pub mod refcount; pub mod static_cell; @@ -26,6 +30,8 @@ pub mod str; #[cfg(windows)] pub mod windows; +pub use rustpython_wtf8 as wtf8; + pub mod vendored { pub use ascii; } diff --git a/common/src/linked_list.rs b/common/src/linked_list.rs index 3941d2c830..4e6e1b7000 100644 --- a/common/src/linked_list.rs +++ b/common/src/linked_list.rs @@ -1,4 +1,6 @@ -//! This module is modified from tokio::util::linked_list: https://github.com/tokio-rs/tokio/blob/master/tokio/src/util/linked_list.rs +// cspell:disable + +//! This module is modified from tokio::util::linked_list: //! Tokio is licensed under the MIT license: //! //! Copyright (c) 2021 Tokio Contributors @@ -208,37 +210,39 @@ impl LinkedList { /// The caller **must** ensure that `node` is currently contained by /// `self` or not contained by any other list. pub unsafe fn remove(&mut self, node: NonNull) -> Option { - if let Some(prev) = L::pointers(node).as_ref().get_prev() { - debug_assert_eq!(L::pointers(prev).as_ref().get_next(), Some(node)); - L::pointers(prev) - .as_mut() - .set_next(L::pointers(node).as_ref().get_next()); - } else { - if self.head != Some(node) { - return None; + unsafe { + if let Some(prev) = L::pointers(node).as_ref().get_prev() { + debug_assert_eq!(L::pointers(prev).as_ref().get_next(), Some(node)); + L::pointers(prev) + .as_mut() + .set_next(L::pointers(node).as_ref().get_next()); + } else { + if self.head != Some(node) { + return None; + } + + self.head = L::pointers(node).as_ref().get_next(); } - self.head = L::pointers(node).as_ref().get_next(); - } + if let Some(next) = L::pointers(node).as_ref().get_next() { + debug_assert_eq!(L::pointers(next).as_ref().get_prev(), Some(node)); + L::pointers(next) + .as_mut() + .set_prev(L::pointers(node).as_ref().get_prev()); + } else { + // // This might be the last item in the list + // if self.tail != Some(node) { + // return None; + // } + + // self.tail = L::pointers(node).as_ref().get_prev(); + } - if let Some(next) = L::pointers(node).as_ref().get_next() { - debug_assert_eq!(L::pointers(next).as_ref().get_prev(), Some(node)); - L::pointers(next) - .as_mut() - .set_prev(L::pointers(node).as_ref().get_prev()); - } else { - // // This might be the last item in the list - // if self.tail != Some(node) { - // return None; - // } + L::pointers(node).as_mut().set_next(None); + L::pointers(node).as_mut().set_prev(None); - // self.tail = L::pointers(node).as_ref().get_prev(); + Some(L::from_raw(node)) } - - L::pointers(node).as_mut().set_next(None); - L::pointers(node).as_mut().set_prev(None); - - Some(L::from_raw(node)) } // pub fn last(&self) -> Option<&L::Target> { @@ -293,7 +297,7 @@ impl LinkedList { } } -impl<'a, T, F> Iterator for DrainFilter<'a, T, F> +impl Iterator for DrainFilter<'_, T, F> where T: Link, F: FnMut(&mut T::Target) -> bool, diff --git a/common/src/lock.rs b/common/src/lock.rs index 811c461112..ca5ffe8de3 100644 --- a/common/src/lock.rs +++ b/common/src/lock.rs @@ -39,4 +39,4 @@ pub type PyMappedRwLockReadGuard<'a, T> = MappedRwLockReadGuard<'a, RawRwLock, T pub type PyRwLockWriteGuard<'a, T> = RwLockWriteGuard<'a, RawRwLock, T>; pub type PyMappedRwLockWriteGuard<'a, T> = MappedRwLockWriteGuard<'a, RawRwLock, T>; -// can add fn const_{mutex,rwlock}() if necessary, but we probably won't need to +// can add fn const_{mutex,rw_lock}() if necessary, but we probably won't need to diff --git a/common/src/lock/cell_lock.rs b/common/src/lock/cell_lock.rs index 5c31fcdbb7..1edd622a20 100644 --- a/common/src/lock/cell_lock.rs +++ b/common/src/lock/cell_lock.rs @@ -2,7 +2,7 @@ use lock_api::{ GetThreadId, RawMutex, RawRwLock, RawRwLockDowngrade, RawRwLockRecursive, RawRwLockUpgrade, RawRwLockUpgradeDowngrade, }; -use std::{cell::Cell, num::NonZeroUsize}; +use std::{cell::Cell, num::NonZero}; pub struct RawCellMutex { locked: Cell, @@ -140,12 +140,12 @@ unsafe impl RawRwLockUpgrade for RawCellRwLock { #[inline] unsafe fn unlock_upgradable(&self) { - self.unlock_shared() + unsafe { self.unlock_shared() } } #[inline] unsafe fn upgrade(&self) { - if !self.try_upgrade() { + if !unsafe { self.try_upgrade() } { deadlock("upgrade ", "RwLock") } } @@ -203,7 +203,7 @@ fn deadlock(lock_kind: &str, ty: &str) -> ! { pub struct SingleThreadId(()); unsafe impl GetThreadId for SingleThreadId { const INIT: Self = SingleThreadId(()); - fn nonzero_thread_id(&self) -> NonZeroUsize { - NonZeroUsize::new(1).unwrap() + fn nonzero_thread_id(&self) -> NonZero { + NonZero::new(1).unwrap() } } diff --git a/common/src/lock/immutable_mutex.rs b/common/src/lock/immutable_mutex.rs index 3f5eba7878..81c5c93be7 100644 --- a/common/src/lock/immutable_mutex.rs +++ b/common/src/lock/immutable_mutex.rs @@ -1,3 +1,5 @@ +#![allow(clippy::needless_lifetimes)] + use lock_api::{MutexGuard, RawMutex}; use std::{fmt, marker::PhantomData, ops::Deref}; @@ -45,7 +47,7 @@ impl<'a, R: RawMutex, T: ?Sized> ImmutableMappedMutexGuard<'a, R, T> { } } -impl<'a, R: RawMutex, T: ?Sized> Deref for ImmutableMappedMutexGuard<'a, R, T> { +impl Deref for ImmutableMappedMutexGuard<'_, R, T> { type Target = T; fn deref(&self) -> &Self::Target { // SAFETY: self.data is valid for the lifetime of the guard @@ -53,22 +55,20 @@ impl<'a, R: RawMutex, T: ?Sized> Deref for ImmutableMappedMutexGuard<'a, R, T> { } } -impl<'a, R: RawMutex, T: ?Sized> Drop for ImmutableMappedMutexGuard<'a, R, T> { +impl Drop for ImmutableMappedMutexGuard<'_, R, T> { fn drop(&mut self) { // SAFETY: An ImmutableMappedMutexGuard always holds the lock unsafe { self.raw.unlock() } } } -impl<'a, R: RawMutex, T: fmt::Debug + ?Sized> fmt::Debug for ImmutableMappedMutexGuard<'a, R, T> { +impl fmt::Debug for ImmutableMappedMutexGuard<'_, R, T> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { fmt::Debug::fmt(&**self, f) } } -impl<'a, R: RawMutex, T: fmt::Display + ?Sized> fmt::Display - for ImmutableMappedMutexGuard<'a, R, T> -{ +impl fmt::Display for ImmutableMappedMutexGuard<'_, R, T> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { fmt::Display::fmt(&**self, f) } diff --git a/common/src/lock/thread_mutex.rs b/common/src/lock/thread_mutex.rs index 1a50542645..d730818d8f 100644 --- a/common/src/lock/thread_mutex.rs +++ b/common/src/lock/thread_mutex.rs @@ -1,3 +1,5 @@ +#![allow(clippy::needless_lifetimes)] + use lock_api::{GetThreadId, GuardNoSend, RawMutex}; use std::{ cell::UnsafeCell, @@ -63,7 +65,7 @@ impl RawThreadMutex { /// This method may only be called if the mutex is held by the current thread. pub unsafe fn unlock(&self) { self.owner.store(0, Ordering::Relaxed); - self.mutex.unlock(); + unsafe { self.mutex.unlock() }; } } @@ -92,8 +94,13 @@ impl Default for ThreadMutex { Self::new(T::default()) } } +impl From for ThreadMutex { + fn from(val: T) -> Self { + Self::new(val) + } +} impl ThreadMutex { - pub fn lock(&self) -> Option> { + pub fn lock(&self) -> Option> { if self.raw.lock() { Some(ThreadMutexGuard { mu: self, @@ -103,7 +110,7 @@ impl ThreadMutex { None } } - pub fn try_lock(&self) -> Result, TryLockThreadError> { + pub fn try_lock(&self) -> Result, TryLockThreadError> { match self.raw.try_lock() { Some(true) => Ok(ThreadMutexGuard { mu: self, @@ -192,33 +199,33 @@ impl<'a, R: RawMutex, G: GetThreadId, T: ?Sized> ThreadMutexGuard<'a, R, G, T> { } } } -impl<'a, R: RawMutex, G: GetThreadId, T: ?Sized> Deref for ThreadMutexGuard<'a, R, G, T> { +impl Deref for ThreadMutexGuard<'_, R, G, T> { type Target = T; fn deref(&self) -> &T { unsafe { &*self.mu.data.get() } } } -impl<'a, R: RawMutex, G: GetThreadId, T: ?Sized> DerefMut for ThreadMutexGuard<'a, R, G, T> { +impl DerefMut for ThreadMutexGuard<'_, R, G, T> { fn deref_mut(&mut self) -> &mut T { unsafe { &mut *self.mu.data.get() } } } -impl<'a, R: RawMutex, G: GetThreadId, T: ?Sized> Drop for ThreadMutexGuard<'a, R, G, T> { +impl Drop for ThreadMutexGuard<'_, R, G, T> { fn drop(&mut self) { unsafe { self.mu.raw.unlock() } } } -impl<'a, R: RawMutex, G: GetThreadId, T: ?Sized + fmt::Display> fmt::Display - for ThreadMutexGuard<'a, R, G, T> +impl fmt::Display + for ThreadMutexGuard<'_, R, G, T> { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { fmt::Display::fmt(&**self, f) } } -impl<'a, R: RawMutex, G: GetThreadId, T: ?Sized + fmt::Debug> fmt::Debug - for ThreadMutexGuard<'a, R, G, T> +impl fmt::Debug + for ThreadMutexGuard<'_, R, G, T> { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { fmt::Debug::fmt(&**self, f) } } @@ -259,33 +266,33 @@ impl<'a, R: RawMutex, G: GetThreadId, T: ?Sized> MappedThreadMutexGuard<'a, R, G } } } -impl<'a, R: RawMutex, G: GetThreadId, T: ?Sized> Deref for MappedThreadMutexGuard<'a, R, G, T> { +impl Deref for MappedThreadMutexGuard<'_, R, G, T> { type Target = T; fn deref(&self) -> &T { unsafe { self.data.as_ref() } } } -impl<'a, R: RawMutex, G: GetThreadId, T: ?Sized> DerefMut for MappedThreadMutexGuard<'a, R, G, T> { +impl DerefMut for MappedThreadMutexGuard<'_, R, G, T> { fn deref_mut(&mut self) -> &mut T { unsafe { self.data.as_mut() } } } -impl<'a, R: RawMutex, G: GetThreadId, T: ?Sized> Drop for MappedThreadMutexGuard<'a, R, G, T> { +impl Drop for MappedThreadMutexGuard<'_, R, G, T> { fn drop(&mut self) { unsafe { self.mu.unlock() } } } -impl<'a, R: RawMutex, G: GetThreadId, T: ?Sized + fmt::Display> fmt::Display - for MappedThreadMutexGuard<'a, R, G, T> +impl fmt::Display + for MappedThreadMutexGuard<'_, R, G, T> { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { fmt::Display::fmt(&**self, f) } } -impl<'a, R: RawMutex, G: GetThreadId, T: ?Sized + fmt::Debug> fmt::Debug - for MappedThreadMutexGuard<'a, R, G, T> +impl fmt::Debug + for MappedThreadMutexGuard<'_, R, G, T> { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { fmt::Debug::fmt(&**self, f) } } diff --git a/common/src/macros.rs b/common/src/macros.rs index 318ab06986..08d00e592d 100644 --- a/common/src/macros.rs +++ b/common/src/macros.rs @@ -41,7 +41,7 @@ pub mod __macro_private { libc::uintptr_t, ); #[cfg(target_env = "msvc")] - extern "C" { + unsafe extern "C" { pub fn _set_thread_local_invalid_parameter_handler( pNew: InvalidParamHandler, ) -> InvalidParamHandler; diff --git a/common/src/os.rs b/common/src/os.rs index c16ec014c5..d37f28d28a 100644 --- a/common/src/os.rs +++ b/common/src/os.rs @@ -1,3 +1,4 @@ +// cspell:disable // TODO: we can move more os-specific bindings/interfaces from stdlib::{os, posix, nt} to here use std::{io, str::Utf8Error}; @@ -23,7 +24,7 @@ pub fn last_os_error() -> io::Error { let err = io::Error::last_os_error(); // FIXME: probably not ideal, we need a bigger dichotomy between GetLastError and errno if err.raw_os_error() == Some(0) { - extern "C" { + unsafe extern "C" { fn _get_errno(pValue: *mut i32) -> i32; } let mut errno = 0; @@ -44,7 +45,7 @@ pub fn last_os_error() -> io::Error { pub fn last_posix_errno() -> i32 { let err = io::Error::last_os_error(); if err.raw_os_error() == Some(0) { - extern "C" { + unsafe extern "C" { fn _get_errno(pValue: *mut i32) -> i32; } let mut errno = 0; @@ -61,13 +62,13 @@ pub fn last_posix_errno() -> i32 { } #[cfg(unix)] -pub fn bytes_as_osstr(b: &[u8]) -> Result<&std::ffi::OsStr, Utf8Error> { +pub fn bytes_as_os_str(b: &[u8]) -> Result<&std::ffi::OsStr, Utf8Error> { use std::os::unix::ffi::OsStrExt; Ok(std::ffi::OsStr::from_bytes(b)) } #[cfg(not(unix))] -pub fn bytes_as_osstr(b: &[u8]) -> Result<&std::ffi::OsStr, Utf8Error> { +pub fn bytes_as_os_str(b: &[u8]) -> Result<&std::ffi::OsStr, Utf8Error> { Ok(std::str::from_utf8(b)?.as_ref()) } diff --git a/common/src/rand.rs b/common/src/rand.rs new file mode 100644 index 0000000000..334505ac94 --- /dev/null +++ b/common/src/rand.rs @@ -0,0 +1,13 @@ +/// Get `N` bytes of random data. +/// +/// This function is mildly expensive to call, as it fetches random data +/// directly from the OS entropy source. +/// +/// # Panics +/// +/// Panics if the OS entropy source returns an error. +pub fn os_random() -> [u8; N] { + let mut buf = [0u8; N]; + getrandom::fill(&mut buf).unwrap(); + buf +} diff --git a/common/src/rc.rs b/common/src/rc.rs index 81207e840c..40c7cf97a8 100644 --- a/common/src/rc.rs +++ b/common/src/rc.rs @@ -3,7 +3,7 @@ use std::rc::Rc; #[cfg(feature = "threading")] use std::sync::Arc; -// type aliases instead of newtypes because you can't do `fn method(self: PyRc)` with a +// type aliases instead of new-types because you can't do `fn method(self: PyRc)` with a // newtype; requires the arbitrary_self_types unstable feature #[cfg(feature = "threading")] diff --git a/common/src/static_cell.rs b/common/src/static_cell.rs index 7f16dad399..a8beee0820 100644 --- a/common/src/static_cell.rs +++ b/common/src/static_cell.rs @@ -13,7 +13,7 @@ mod non_threading { impl StaticCell { #[doc(hidden)] - pub const fn _from_localkey(inner: &'static LocalKey>) -> Self { + pub const fn _from_local_key(inner: &'static LocalKey>) -> Self { Self { inner } } @@ -56,9 +56,11 @@ mod non_threading { $($(#[$attr])* $vis static $name: $crate::static_cell::StaticCell<$t> = { ::std::thread_local! { - $vis static $name: $crate::lock::OnceCell<&'static $t> = $crate::lock::OnceCell::new(); + $vis static $name: $crate::lock::OnceCell<&'static $t> = const { + $crate::lock::OnceCell::new() + }; } - $crate::static_cell::StaticCell::_from_localkey(&$name) + $crate::static_cell::StaticCell::_from_local_key(&$name) };)+ }; } @@ -76,7 +78,7 @@ mod threading { impl StaticCell { #[doc(hidden)] - pub const fn _from_oncecell(inner: OnceCell) -> Self { + pub const fn _from_once_cell(inner: OnceCell) -> Self { Self { inner } } @@ -108,7 +110,7 @@ mod threading { ($($(#[$attr:meta])* $vis:vis static $name:ident: $t:ty;)+) => { $($(#[$attr])* $vis static $name: $crate::static_cell::StaticCell<$t> = - $crate::static_cell::StaticCell::_from_oncecell($crate::lock::OnceCell::new());)+ + $crate::static_cell::StaticCell::_from_once_cell($crate::lock::OnceCell::new());)+ }; } } diff --git a/common/src/str.rs b/common/src/str.rs index 48fdb0f95a..ca5e0d117f 100644 --- a/common/src/str.rs +++ b/common/src/str.rs @@ -1,9 +1,9 @@ -use crate::{ - atomic::{PyAtomic, Radium}, - hash::PyHash, -}; -use ascii::AsciiString; -use rustpython_format::CharLen; +use crate::atomic::{PyAtomic, Radium}; +use crate::format::CharLen; +use crate::wtf8::{CodePoint, Wtf8, Wtf8Buf}; +use ascii::{AsciiChar, AsciiStr, AsciiString}; +use core::fmt; +use core::sync::atomic::Ordering::Relaxed; use std::ops::{Bound, RangeBounds}; #[cfg(not(target_arch = "wasm32"))] @@ -14,133 +14,323 @@ pub type wchar_t = libc::wchar_t; pub type wchar_t = u32; /// Utf8 + state.ascii (+ PyUnicode_Kind in future) -#[derive(Debug, Copy, Clone, PartialEq)] -pub enum PyStrKind { +#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord)] +pub enum StrKind { Ascii, Utf8, + Wtf8, } -impl std::ops::BitOr for PyStrKind { +impl std::ops::BitOr for StrKind { type Output = Self; fn bitor(self, other: Self) -> Self { + use StrKind::*; match (self, other) { - (Self::Ascii, Self::Ascii) => Self::Ascii, - _ => Self::Utf8, + (Wtf8, _) | (_, Wtf8) => Wtf8, + (Utf8, _) | (_, Utf8) => Utf8, + (Ascii, Ascii) => Ascii, } } } -impl PyStrKind { - #[inline] - pub fn new_data(self) -> PyStrKindData { +impl StrKind { + pub fn is_ascii(&self) -> bool { + matches!(self, Self::Ascii) + } + + pub fn is_utf8(&self) -> bool { + matches!(self, Self::Ascii | Self::Utf8) + } + + #[inline(always)] + pub fn can_encode(&self, code: CodePoint) -> bool { match self { - PyStrKind::Ascii => PyStrKindData::Ascii, - PyStrKind::Utf8 => PyStrKindData::Utf8(Radium::new(usize::MAX)), + StrKind::Ascii => code.is_ascii(), + StrKind::Utf8 => code.to_char().is_some(), + StrKind::Wtf8 => true, } } } +pub trait DeduceStrKind { + fn str_kind(&self) -> StrKind; +} + +impl DeduceStrKind for str { + fn str_kind(&self) -> StrKind { + if self.is_ascii() { + StrKind::Ascii + } else { + StrKind::Utf8 + } + } +} + +impl DeduceStrKind for Wtf8 { + fn str_kind(&self) -> StrKind { + if self.is_ascii() { + StrKind::Ascii + } else if self.is_utf8() { + StrKind::Utf8 + } else { + StrKind::Wtf8 + } + } +} + +impl DeduceStrKind for String { + fn str_kind(&self) -> StrKind { + (**self).str_kind() + } +} + +impl DeduceStrKind for Wtf8Buf { + fn str_kind(&self) -> StrKind { + (**self).str_kind() + } +} + +impl DeduceStrKind for &T { + fn str_kind(&self) -> StrKind { + (**self).str_kind() + } +} + +impl DeduceStrKind for Box { + fn str_kind(&self) -> StrKind { + (**self).str_kind() + } +} + #[derive(Debug)] -pub enum PyStrKindData { - Ascii, - // uses usize::MAX as a sentinel for "uncomputed" - Utf8(PyAtomic), +pub enum PyKindStr<'a> { + Ascii(&'a AsciiStr), + Utf8(&'a str), + Wtf8(&'a Wtf8), } -impl PyStrKindData { - #[inline] - pub fn kind(&self) -> PyStrKind { - match self { - PyStrKindData::Ascii => PyStrKind::Ascii, - PyStrKindData::Utf8(_) => PyStrKind::Utf8, +#[derive(Debug, Clone)] +pub struct StrData { + data: Box, + kind: StrKind, + len: StrLen, +} + +struct StrLen(PyAtomic); + +impl From for StrLen { + #[inline(always)] + fn from(value: usize) -> Self { + Self(Radium::new(value)) + } +} + +impl fmt::Debug for StrLen { + fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { + let len = self.0.load(Relaxed); + if len == usize::MAX { + f.write_str("") + } else { + len.fmt(f) } } } -pub struct BorrowedStr<'a> { - bytes: &'a [u8], - kind: PyStrKindData, - #[allow(dead_code)] - hash: PyAtomic, +impl StrLen { + #[inline(always)] + fn zero() -> Self { + 0usize.into() + } + #[inline(always)] + fn uncomputed() -> Self { + usize::MAX.into() + } } -impl<'a> BorrowedStr<'a> { - /// # Safety - /// `s` have to be an ascii string - #[inline] - pub unsafe fn from_ascii_unchecked(s: &'a [u8]) -> Self { - debug_assert!(s.is_ascii()); +impl Clone for StrLen { + fn clone(&self) -> Self { + Self(self.0.load(Relaxed).into()) + } +} + +impl Default for StrData { + fn default() -> Self { Self { - bytes: s, - kind: PyStrKind::Ascii.new_data(), - hash: PyAtomic::::new(0), + data: >::default(), + kind: StrKind::Ascii, + len: StrLen::zero(), } } +} +impl From> for StrData { + fn from(value: Box) -> Self { + // doing the check is ~10x faster for ascii, and is actually only 2% slower worst case for + // non-ascii; see https://github.com/RustPython/RustPython/pull/2586#issuecomment-844611532 + let kind = value.str_kind(); + unsafe { Self::new_str_unchecked(value, kind) } + } +} + +impl From> for StrData { #[inline] - pub fn from_bytes(s: &'a [u8]) -> Self { - let k = if s.is_ascii() { - PyStrKind::Ascii.new_data() + fn from(value: Box) -> Self { + // doing the check is ~10x faster for ascii, and is actually only 2% slower worst case for + // non-ascii; see https://github.com/RustPython/RustPython/pull/2586#issuecomment-844611532 + let kind = value.str_kind(); + unsafe { Self::new_str_unchecked(value.into(), kind) } + } +} + +impl From> for StrData { + #[inline] + fn from(value: Box) -> Self { + Self { + len: value.len().into(), + data: value.into(), + kind: StrKind::Ascii, + } + } +} + +impl From for StrData { + fn from(ch: AsciiChar) -> Self { + AsciiString::from(ch).into_boxed_ascii_str().into() + } +} + +impl From for StrData { + fn from(ch: char) -> Self { + if let Ok(ch) = ascii::AsciiChar::from_ascii(ch) { + ch.into() + } else { + Self { + data: ch.to_string().into(), + kind: StrKind::Utf8, + len: 1.into(), + } + } + } +} + +impl From for StrData { + fn from(ch: CodePoint) -> Self { + if let Some(ch) = ch.to_char() { + ch.into() } else { - PyStrKind::Utf8.new_data() + Self { + data: Wtf8Buf::from(ch).into(), + kind: StrKind::Wtf8, + len: 1.into(), + } + } + } +} + +impl StrData { + /// # Safety + /// + /// Given `bytes` must be valid data for given `kind` + pub unsafe fn new_str_unchecked(data: Box, kind: StrKind) -> Self { + let len = match kind { + StrKind::Ascii => data.len().into(), + _ => StrLen::uncomputed(), }; + Self { data, kind, len } + } + + /// # Safety + /// + /// `char_len` must be accurate. + pub unsafe fn new_with_char_len(data: Box, kind: StrKind, char_len: usize) -> Self { Self { - bytes: s, - kind: k, - hash: PyAtomic::::new(0), + data, + kind, + len: char_len.into(), } } #[inline] - pub fn as_str(&self) -> &str { - unsafe { - // SAFETY: Both PyStrKind::{Ascii, Utf8} are valid utf8 string - std::str::from_utf8_unchecked(self.bytes) + pub fn as_wtf8(&self) -> &Wtf8 { + &self.data + } + + #[inline] + pub fn as_str(&self) -> Option<&str> { + self.kind + .is_utf8() + .then(|| unsafe { std::str::from_utf8_unchecked(self.data.as_bytes()) }) + } + + pub fn as_ascii(&self) -> Option<&AsciiStr> { + self.kind + .is_ascii() + .then(|| unsafe { AsciiStr::from_ascii_unchecked(self.data.as_bytes()) }) + } + + pub fn kind(&self) -> StrKind { + self.kind + } + + #[inline] + pub fn as_str_kind(&self) -> PyKindStr<'_> { + match self.kind { + StrKind::Ascii => { + PyKindStr::Ascii(unsafe { AsciiStr::from_ascii_unchecked(self.data.as_bytes()) }) + } + StrKind::Utf8 => { + PyKindStr::Utf8(unsafe { std::str::from_utf8_unchecked(self.data.as_bytes()) }) + } + StrKind::Wtf8 => PyKindStr::Wtf8(&self.data), } } + #[inline] + pub fn len(&self) -> usize { + self.data.len() + } + + pub fn is_empty(&self) -> bool { + self.data.is_empty() + } + #[inline] pub fn char_len(&self) -> usize { - match self.kind { - PyStrKindData::Ascii => self.bytes.len(), - PyStrKindData::Utf8(ref len) => match len.load(core::sync::atomic::Ordering::Relaxed) { - usize::MAX => self._compute_char_len(), - len => len, - }, + match self.len.0.load(Relaxed) { + usize::MAX => self._compute_char_len(), + len => len, } } #[cold] fn _compute_char_len(&self) -> usize { - match self.kind { - PyStrKindData::Utf8(ref char_len) => { - let len = self.as_str().chars().count(); - // len cannot be usize::MAX, since vec.capacity() < sys.maxsize - char_len.store(len, core::sync::atomic::Ordering::Relaxed); - len - } - _ => unsafe { - debug_assert!(false); // invalid for non-utf8 strings - std::hint::unreachable_unchecked() - }, - } + let len = if let Some(s) = self.as_str() { + // utf8 chars().count() is optimized + s.chars().count() + } else { + self.data.code_points().count() + }; + // len cannot be usize::MAX, since vec.capacity() < sys.maxsize + self.len.0.store(len, Relaxed); + len } -} -impl std::ops::Deref for BorrowedStr<'_> { - type Target = str; - fn deref(&self) -> &str { - self.as_str() + pub fn nth_char(&self, index: usize) -> CodePoint { + match self.as_str_kind() { + PyKindStr::Ascii(s) => s[index].into(), + PyKindStr::Utf8(s) => s.chars().nth(index).unwrap().into(), + PyKindStr::Wtf8(w) => w.code_points().nth(index).unwrap(), + } } } -impl std::fmt::Display for BorrowedStr<'_> { +impl std::fmt::Display for StrData { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { - self.as_str().fmt(f) + self.data.fmt(f) } } -impl CharLen for BorrowedStr<'_> { +impl CharLen for StrData { fn char_len(&self) -> usize { self.char_len() } @@ -170,8 +360,8 @@ pub fn get_chars(s: &str, range: impl RangeBounds) -> &str { } #[inline] -pub fn char_range_end(s: &str, nchars: usize) -> Option { - let i = match nchars.checked_sub(1) { +pub fn char_range_end(s: &str, n_chars: usize) -> Option { + let i = match n_chars.checked_sub(1) { Some(last_char_index) => { let (index, c) = s.char_indices().nth(last_char_index)?; index + c.len_utf8() @@ -181,6 +371,41 @@ pub fn char_range_end(s: &str, nchars: usize) -> Option { Some(i) } +pub fn try_get_codepoints(w: &Wtf8, range: impl RangeBounds) -> Option<&Wtf8> { + let mut chars = w.code_points(); + let start = match range.start_bound() { + Bound::Included(&i) => i, + Bound::Excluded(&i) => i + 1, + Bound::Unbounded => 0, + }; + for _ in 0..start { + chars.next()?; + } + let s = chars.as_wtf8(); + let range_len = match range.end_bound() { + Bound::Included(&i) => i + 1 - start, + Bound::Excluded(&i) => i - start, + Bound::Unbounded => return Some(s), + }; + codepoint_range_end(s, range_len).map(|end| &s[..end]) +} + +pub fn get_codepoints(w: &Wtf8, range: impl RangeBounds) -> &Wtf8 { + try_get_codepoints(w, range).unwrap() +} + +#[inline] +pub fn codepoint_range_end(s: &Wtf8, n_chars: usize) -> Option { + let i = match n_chars.checked_sub(1) { + Some(last_char_index) => { + let (index, c) = s.code_point_indices().nth(last_char_index)?; + index + c.len_wtf8() + } + None => 0, + }; + Some(i) +} + pub fn zfill(bytes: &[u8], width: usize) -> Vec { if width <= bytes.len() { bytes.to_vec() @@ -193,7 +418,7 @@ pub fn zfill(bytes: &[u8], width: usize) -> Vec { }; let mut filled = Vec::new(); filled.extend_from_slice(sign); - filled.extend(std::iter::repeat(b'0').take(width - bytes.len())); + filled.extend(std::iter::repeat_n(b'0', width - bytes.len())); filled.extend_from_slice(s); filled } @@ -221,6 +446,21 @@ pub fn to_ascii(value: &str) -> AsciiString { unsafe { AsciiString::from_ascii_unchecked(ascii) } } +pub struct UnicodeEscapeCodepoint(pub CodePoint); + +impl fmt::Display for UnicodeEscapeCodepoint { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + let c = self.0.to_u32(); + if c >= 0x10000 { + write!(f, "\\U{c:08x}") + } else if c >= 0x100 { + write!(f, "\\u{c:04x}") + } else { + write!(f, "\\x{c:02x}") + } + } +} + pub mod levenshtein { use std::{cell::RefCell, thread_local}; @@ -241,16 +481,15 @@ pub mod levenshtein { if b.is_ascii_uppercase() { b += b'a' - b'A'; } - if a == b { - CASE_COST - } else { - MOVE_COST - } + if a == b { CASE_COST } else { MOVE_COST } } pub fn levenshtein_distance(a: &str, b: &str, max_cost: usize) -> usize { thread_local! { - static BUFFER: RefCell<[usize; MAX_STRING_SIZE]> = const { RefCell::new([0usize; MAX_STRING_SIZE]) }; + #[allow(clippy::declare_interior_mutable_const)] + static BUFFER: RefCell<[usize; MAX_STRING_SIZE]> = const { + RefCell::new([0usize; MAX_STRING_SIZE]) + }; } if a == b { @@ -322,6 +561,37 @@ pub mod levenshtein { } } +/// Replace all tabs in a string with spaces, using the given tab size. +pub fn expandtabs(input: &str, tab_size: usize) -> String { + let tab_stop = tab_size; + let mut expanded_str = String::with_capacity(input.len()); + let mut tab_size = tab_stop; + let mut col_count = 0usize; + for ch in input.chars() { + match ch { + '\t' => { + let num_spaces = tab_size - col_count; + col_count += num_spaces; + let expand = " ".repeat(num_spaces); + expanded_str.push_str(&expand); + } + '\r' | '\n' => { + expanded_str.push(ch); + col_count = 0; + tab_size = 0; + } + _ => { + expanded_str.push(ch); + col_count += 1; + } + } + if col_count >= tab_size { + tab_size += tab_stop; + } + } + expanded_str +} + /// Creates an [`AsciiStr`][ascii::AsciiStr] from a string literal, throwing a compile error if the /// literal isn't actually ascii. /// @@ -331,16 +601,60 @@ pub mod levenshtein { /// ``` #[macro_export] macro_rules! ascii { - ($x:literal) => {{ - const STR: &str = $x; - const _: () = if !STR.is_ascii() { - panic!("ascii!() argument is not an ascii string"); + ($x:expr $(,)?) => {{ + let s = const { + let s: &str = $x; + assert!(s.is_ascii(), "ascii!() argument is not an ascii string"); + s }; - unsafe { $crate::vendored::ascii::AsciiStr::from_ascii_unchecked(STR.as_bytes()) } + unsafe { $crate::vendored::ascii::AsciiStr::from_ascii_unchecked(s.as_bytes()) } }}; } pub use ascii; +// TODO: this should probably live in a crate like unic or unicode-properties +const UNICODE_DECIMAL_VALUES: &[char] = &[ + '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '٠', '١', '٢', '٣', '٤', '٥', '٦', '٧', '٨', + '٩', '۰', '۱', '۲', '۳', '۴', '۵', '۶', '۷', '۸', '۹', '߀', '߁', '߂', '߃', '߄', '߅', '߆', '߇', + '߈', '߉', '०', '१', '२', '३', '४', '५', '६', '७', '८', '९', '০', '১', '২', '৩', '৪', '৫', '৬', + '৭', '৮', '৯', '੦', '੧', '੨', '੩', '੪', '੫', '੬', '੭', '੮', '੯', '૦', '૧', '૨', '૩', '૪', '૫', + '૬', '૭', '૮', '૯', '୦', '୧', '୨', '୩', '୪', '୫', '୬', '୭', '୮', '୯', '௦', '௧', '௨', '௩', '௪', + '௫', '௬', '௭', '௮', '௯', '౦', '౧', '౨', '౩', '౪', '౫', '౬', '౭', '౮', '౯', '೦', '೧', '೨', '೩', + '೪', '೫', '೬', '೭', '೮', '೯', '൦', '൧', '൨', '൩', '൪', '൫', '൬', '൭', '൮', '൯', '෦', '෧', '෨', + '෩', '෪', '෫', '෬', '෭', '෮', '෯', '๐', '๑', '๒', '๓', '๔', '๕', '๖', '๗', '๘', '๙', '໐', '໑', + '໒', '໓', '໔', '໕', '໖', '໗', '໘', '໙', '༠', '༡', '༢', '༣', '༤', '༥', '༦', '༧', '༨', '༩', '၀', + '၁', '၂', '၃', '၄', '၅', '၆', '၇', '၈', '၉', '႐', '႑', '႒', '႓', '႔', '႕', '႖', '႗', '႘', '႙', + '០', '១', '២', '៣', '៤', '៥', '៦', '៧', '៨', '៩', '᠐', '᠑', '᠒', '᠓', '᠔', '᠕', '᠖', '᠗', '᠘', + '᠙', '᥆', '᥇', '᥈', '᥉', '᥊', '᥋', '᥌', '᥍', '᥎', '᥏', '᧐', '᧑', '᧒', '᧓', '᧔', '᧕', '᧖', '᧗', + '᧘', '᧙', '᪀', '᪁', '᪂', '᪃', '᪄', '᪅', '᪆', '᪇', '᪈', '᪉', '᪐', '᪑', '᪒', '᪓', '᪔', '᪕', '᪖', + '᪗', '᪘', '᪙', '᭐', '᭑', '᭒', '᭓', '᭔', '᭕', '᭖', '᭗', '᭘', '᭙', '᮰', '᮱', '᮲', '᮳', '᮴', '᮵', + '᮶', '᮷', '᮸', '᮹', '᱀', '᱁', '᱂', '᱃', '᱄', '᱅', '᱆', '᱇', '᱈', '᱉', '᱐', '᱑', '᱒', '᱓', '᱔', + '᱕', '᱖', '᱗', '᱘', '᱙', '꘠', '꘡', '꘢', '꘣', '꘤', '꘥', '꘦', '꘧', '꘨', '꘩', '꣐', '꣑', '꣒', '꣓', + '꣔', '꣕', '꣖', '꣗', '꣘', '꣙', '꤀', '꤁', '꤂', '꤃', '꤄', '꤅', '꤆', '꤇', '꤈', '꤉', '꧐', '꧑', '꧒', + '꧓', '꧔', '꧕', '꧖', '꧗', '꧘', '꧙', '꧰', '꧱', '꧲', '꧳', '꧴', '꧵', '꧶', '꧷', '꧸', '꧹', '꩐', '꩑', + '꩒', '꩓', '꩔', '꩕', '꩖', '꩗', '꩘', '꩙', '꯰', '꯱', '꯲', '꯳', '꯴', '꯵', '꯶', '꯷', '꯸', '꯹', '０', + '１', '２', '３', '４', '５', '６', '７', '８', '９', '𐒠', '𐒡', '𐒢', '𐒣', '𐒤', '𐒥', '𐒦', '𐒧', + '𐒨', '𐒩', '𑁦', '𑁧', '𑁨', '𑁩', '𑁪', '𑁫', '𑁬', '𑁭', '𑁮', '𑁯', '𑃰', '𑃱', '𑃲', '𑃳', '𑃴', '𑃵', '𑃶', + '𑃷', '𑃸', '𑃹', '𑄶', '𑄷', '𑄸', '𑄹', '𑄺', '𑄻', '𑄼', '𑄽', '𑄾', '𑄿', '𑇐', '𑇑', '𑇒', '𑇓', '𑇔', '𑇕', + '𑇖', '𑇗', '𑇘', '𑇙', '𑋰', '𑋱', '𑋲', '𑋳', '𑋴', '𑋵', '𑋶', '𑋷', '𑋸', '𑋹', '𑑐', '𑑑', '𑑒', '𑑓', '𑑔', + '𑑕', '𑑖', '𑑗', '𑑘', '𑑙', '𑓐', '𑓑', '𑓒', '𑓓', '𑓔', '𑓕', '𑓖', '𑓗', '𑓘', '𑓙', '𑙐', '𑙑', '𑙒', '𑙓', + '𑙔', '𑙕', '𑙖', '𑙗', '𑙘', '𑙙', '𑛀', '𑛁', '𑛂', '𑛃', '𑛄', '𑛅', '𑛆', '𑛇', '𑛈', '𑛉', '𑜰', '𑜱', '𑜲', + '𑜳', '𑜴', '𑜵', '𑜶', '𑜷', '𑜸', '𑜹', '𑣠', '𑣡', '𑣢', '𑣣', '𑣤', '𑣥', '𑣦', '𑣧', '𑣨', '𑣩', '𑱐', '𑱑', + '𑱒', '𑱓', '𑱔', '𑱕', '𑱖', '𑱗', '𑱘', '𑱙', '𑵐', '𑵑', '𑵒', '𑵓', '𑵔', '𑵕', '𑵖', '𑵗', '𑵘', '𑵙', '𖩠', + '𖩡', '𖩢', '𖩣', '𖩤', '𖩥', '𖩦', '𖩧', '𖩨', '𖩩', '𖭐', '𖭑', '𖭒', '𖭓', '𖭔', '𖭕', '𖭖', '𖭗', '𖭘', '𖭙', + '𝟎', '𝟏', '𝟐', '𝟑', '𝟒', '𝟓', '𝟔', '𝟕', '𝟖', '𝟗', '𝟘', '𝟙', '𝟚', '𝟛', '𝟜', '𝟝', '𝟞', '𝟟', '𝟠', + '𝟡', '𝟢', '𝟣', '𝟤', '𝟥', '𝟦', '𝟧', '𝟨', '𝟩', '𝟪', '𝟫', '𝟬', '𝟭', '𝟮', '𝟯', '𝟰', '𝟱', '𝟲', '𝟳', + '𝟴', '𝟵', '𝟶', '𝟷', '𝟸', '𝟹', '𝟺', '𝟻', '𝟼', '𝟽', '𝟾', '𝟿', '𞥐', '𞥑', '𞥒', '𞥓', '𞥔', '𞥕', '𞥖', + '𞥗', '𞥘', '𞥙', +]; + +pub fn char_to_decimal(ch: char) -> Option { + UNICODE_DECIMAL_VALUES + .binary_search(&ch) + .ok() + .map(|i| (i % 10) as u8) +} + #[cfg(test)] mod tests { use super::*; diff --git a/compiler/Cargo.toml b/compiler/Cargo.toml index cb98093c9e..39b7c54beb 100644 --- a/compiler/Cargo.toml +++ b/compiler/Cargo.toml @@ -11,7 +11,16 @@ license.workspace = true [dependencies] rustpython-codegen = { workspace = true } rustpython-compiler-core = { workspace = true } -rustpython-parser = { workspace = true } +rustpython-compiler-source = { workspace = true } +# rustpython-parser = { workspace = true } +ruff_python_parser = { workspace = true } +ruff_python_ast = { workspace = true } +ruff_source_file = { workspace = true } +ruff_text_size = { workspace = true } +thiserror = { workspace = true } + +[dev-dependencies] +rand = { workspace = true } [lints] workspace = true \ No newline at end of file diff --git a/compiler/codegen/Cargo.toml b/compiler/codegen/Cargo.toml index 0fe950be71..479b0b29f6 100644 --- a/compiler/codegen/Cargo.toml +++ b/compiler/codegen/Cargo.toml @@ -10,9 +10,15 @@ license.workspace = true [dependencies] -rustpython-ast = { workspace = true, features=["unparse", "constant-optimization"] } -rustpython-parser-core = { workspace = true } +# rustpython-ast = { workspace = true, features=["unparse", "constant-optimization"] } +# rustpython-parser-core = { workspace = true } rustpython-compiler-core = { workspace = true } +rustpython-compiler-source = {workspace = true } +rustpython-literal = {workspace = true } +rustpython-wtf8 = { workspace = true } +ruff_python_ast = { workspace = true } +ruff_text_size = { workspace = true } +ruff_source_file = { workspace = true } ahash = { workspace = true } bitflags = { workspace = true } @@ -21,11 +27,14 @@ itertools = { workspace = true } log = { workspace = true } num-complex = { workspace = true } num-traits = { workspace = true } +thiserror = { workspace = true } +malachite-bigint = { workspace = true } +memchr = { workspace = true } +unicode_names2 = { workspace = true } [dev-dependencies] -rustpython-parser = { workspace = true } - +ruff_python_parser = { workspace = true } insta = { workspace = true } [lints] -workspace = true \ No newline at end of file +workspace = true diff --git a/compiler/codegen/src/compile.rs b/compiler/codegen/src/compile.rs index dc9f8a976e..18215003ee 100644 --- a/compiler/codegen/src/compile.rs +++ b/compiler/codegen/src/compile.rs @@ -8,22 +8,43 @@ #![deny(clippy::cast_possible_truncation)] use crate::{ - error::{CodegenError, CodegenErrorType}, - ir, + IndexSet, ToPythonName, + error::{CodegenError, CodegenErrorType, PatternUnreachableReason}, + ir::{self, BlockIdx}, symboltable::{self, SymbolFlags, SymbolScope, SymbolTable}, - IndexSet, + unparse::unparse_expr, }; use itertools::Itertools; -use num_complex::Complex64; -use num_traits::ToPrimitive; -use rustpython_ast::located::{self as located_ast, Located}; +use malachite_bigint::BigInt; +use num_complex::Complex; +use num_traits::{Num, ToPrimitive}; +use ruff_python_ast::{ + Alias, Arguments, BoolOp, CmpOp, Comprehension, ConversionFlag, DebugText, Decorator, DictItem, + ExceptHandler, ExceptHandlerExceptHandler, Expr, ExprAttribute, ExprBoolOp, ExprFString, + ExprList, ExprName, ExprStarred, ExprSubscript, ExprTuple, ExprUnaryOp, FString, + FStringElement, FStringElements, FStringFlags, FStringPart, Identifier, Int, Keyword, + MatchCase, ModExpression, ModModule, Operator, Parameters, Pattern, PatternMatchAs, + PatternMatchClass, PatternMatchOr, PatternMatchSequence, PatternMatchSingleton, + PatternMatchStar, PatternMatchValue, Singleton, Stmt, StmtExpr, TypeParam, TypeParamParamSpec, + TypeParamTypeVar, TypeParamTypeVarTuple, TypeParams, UnaryOp, WithItem, +}; +use ruff_source_file::OneIndexed; +use ruff_text_size::{Ranged, TextRange}; +use rustpython_wtf8::Wtf8Buf; +// use rustpython_ast::located::{self as located_ast, Located}; use rustpython_compiler_core::{ - bytecode::{self, Arg as OpArgMarker, CodeObject, ConstantData, Instruction, OpArg, OpArgType}, Mode, + bytecode::{ + self, Arg as OpArgMarker, BinaryOperator, CodeObject, ComparisonOperator, ConstantData, + Instruction, OpArg, OpArgType, UnpackExArgs, + }, }; -use rustpython_parser_core::source_code::{LineNumber, SourceLocation}; +use rustpython_compiler_source::SourceCode; +// use rustpython_parser_core::source_code::{LineNumber, SourceLocation}; +use crate::error::InternalError; use std::borrow::Cow; +pub(crate) type InternalResult = Result; type CompileResult = Result; #[derive(PartialEq, Eq, Clone, Copy)] @@ -47,19 +68,26 @@ fn is_forbidden_name(name: &str) -> bool { } /// Main structure holding the state of compilation. -struct Compiler { +struct Compiler<'src> { code_stack: Vec, symbol_table_stack: Vec, - source_path: String, - current_source_location: SourceLocation, + source_code: SourceCode<'src>, + // current_source_location: SourceLocation, + current_source_range: TextRange, qualified_path: Vec, - done_with_future_stmts: bool, + done_with_future_stmts: DoneWithFuture, future_annotations: bool, ctx: CompileContext, class_name: Option, opts: CompileOpts, } +enum DoneWithFuture { + No, + DoneWithDoc, + Yes, +} + #[derive(Debug, Clone, Default)] pub struct CompileOpts { /// How optimized the bytecode output should be; any optimize > 0 does @@ -95,105 +123,78 @@ enum ComprehensionType { Dict, } -/// Compile an located_ast::Mod produced from rustpython_parser::parse() +/// Compile an Mod produced from ruff parser pub fn compile_top( - ast: &located_ast::Mod, - source_path: String, + ast: ruff_python_ast::Mod, + source_code: SourceCode<'_>, mode: Mode, opts: CompileOpts, ) -> CompileResult { match ast { - located_ast::Mod::Module(located_ast::ModModule { body, .. }) => { - compile_program(body, source_path, opts) - } - located_ast::Mod::Interactive(located_ast::ModInteractive { body, .. }) => match mode { - Mode::Single => compile_program_single(body, source_path, opts), - Mode::BlockExpr => compile_block_expression(body, source_path, opts), - _ => unreachable!("only Single and BlockExpr parsed to Interactive"), + ruff_python_ast::Mod::Module(module) => match mode { + Mode::Exec | Mode::Eval => compile_program(&module, source_code, opts), + Mode::Single => compile_program_single(&module, source_code, opts), + Mode::BlockExpr => compile_block_expression(&module, source_code, opts), }, - located_ast::Mod::Expression(located_ast::ModExpression { body, .. }) => { - compile_expression(body, source_path, opts) - } - located_ast::Mod::FunctionType(_) => panic!("can't compile a FunctionType"), + ruff_python_ast::Mod::Expression(expr) => compile_expression(&expr, source_code, opts), } } -/// A helper function for the shared code of the different compile functions -fn compile_impl( - ast: &Ast, - source_path: String, +/// Compile a standard Python program to bytecode +pub fn compile_program( + ast: &ModModule, + source_code: SourceCode<'_>, opts: CompileOpts, - make_symbol_table: impl FnOnce(&Ast) -> Result, - compile: impl FnOnce(&mut Compiler, &Ast, SymbolTable) -> CompileResult<()>, ) -> CompileResult { - let symbol_table = match make_symbol_table(ast) { - Ok(x) => x, - Err(e) => return Err(e.into_codegen_error(source_path)), - }; - - let mut compiler = Compiler::new(opts, source_path, "".to_owned()); - compile(&mut compiler, ast, symbol_table)?; + let symbol_table = SymbolTable::scan_program(ast, source_code.clone()) + .map_err(|e| e.into_codegen_error(source_code.path.to_owned()))?; + let mut compiler = Compiler::new(opts, source_code, "".to_owned()); + compiler.compile_program(ast, symbol_table)?; let code = compiler.pop_code_object(); trace!("Compilation completed: {:?}", code); Ok(code) } -/// Compile a standard Python program to bytecode -pub fn compile_program( - ast: &[located_ast::Stmt], - source_path: String, - opts: CompileOpts, -) -> CompileResult { - compile_impl( - ast, - source_path, - opts, - SymbolTable::scan_program, - Compiler::compile_program, - ) -} - /// Compile a Python program to bytecode for the context of a REPL pub fn compile_program_single( - ast: &[located_ast::Stmt], - source_path: String, + ast: &ModModule, + source_code: SourceCode<'_>, opts: CompileOpts, ) -> CompileResult { - compile_impl( - ast, - source_path, - opts, - SymbolTable::scan_program, - Compiler::compile_program_single, - ) + let symbol_table = SymbolTable::scan_program(ast, source_code.clone()) + .map_err(|e| e.into_codegen_error(source_code.path.to_owned()))?; + let mut compiler = Compiler::new(opts, source_code, "".to_owned()); + compiler.compile_program_single(&ast.body, symbol_table)?; + let code = compiler.pop_code_object(); + trace!("Compilation completed: {:?}", code); + Ok(code) } pub fn compile_block_expression( - ast: &[located_ast::Stmt], - source_path: String, + ast: &ModModule, + source_code: SourceCode<'_>, opts: CompileOpts, ) -> CompileResult { - compile_impl( - ast, - source_path, - opts, - SymbolTable::scan_program, - Compiler::compile_block_expr, - ) + let symbol_table = SymbolTable::scan_program(ast, source_code.clone()) + .map_err(|e| e.into_codegen_error(source_code.path.to_owned()))?; + let mut compiler = Compiler::new(opts, source_code, "".to_owned()); + compiler.compile_block_expr(&ast.body, symbol_table)?; + let code = compiler.pop_code_object(); + trace!("Compilation completed: {:?}", code); + Ok(code) } pub fn compile_expression( - ast: &located_ast::Expr, - source_path: String, + ast: &ModExpression, + source_code: SourceCode<'_>, opts: CompileOpts, ) -> CompileResult { - compile_impl( - ast, - source_path, - opts, - SymbolTable::scan_expr, - Compiler::compile_eval, - ) + let symbol_table = SymbolTable::scan_expr(ast, source_code.clone()) + .map_err(|e| e.into_codegen_error(source_code.path.to_owned()))?; + let mut compiler = Compiler::new(opts, source_code, "".to_owned()); + compiler.compile_eval(ast, symbol_table)?; + let code = compiler.pop_code_object(); + Ok(code) } macro_rules! emit { @@ -211,15 +212,102 @@ macro_rules! emit { }; } -impl Compiler { - fn new(opts: CompileOpts, source_path: String, code_name: String) -> Self { +fn eprint_location(zelf: &Compiler<'_>) { + let start = zelf + .source_code + .source_location(zelf.current_source_range.start()); + let end = zelf + .source_code + .source_location(zelf.current_source_range.end()); + eprintln!( + "LOCATION: {} from {}:{} to {}:{}", + zelf.source_code.path.to_owned(), + start.row, + start.column, + end.row, + end.column + ); +} + +/// Better traceback for internal error +fn unwrap_internal(zelf: &Compiler<'_>, r: InternalResult) -> T { + if let Err(ref r_err) = r { + eprintln!("=== CODEGEN PANIC INFO ==="); + eprintln!("This IS an internal error: {}", r_err); + eprint_location(zelf); + eprintln!("=== END PANIC INFO ==="); + } + r.unwrap() +} + +fn compiler_unwrap_option(zelf: &Compiler<'_>, o: Option) -> T { + if o.is_none() { + eprintln!("=== CODEGEN PANIC INFO ==="); + eprintln!("This IS an internal error, an option was unwrapped during codegen"); + eprint_location(zelf); + eprintln!("=== END PANIC INFO ==="); + } + o.unwrap() +} + +// fn compiler_result_unwrap(zelf: &Compiler<'_>, result: Result) -> T { +// if result.is_err() { +// eprintln!("=== CODEGEN PANIC INFO ==="); +// eprintln!("This IS an internal error, an result was unwrapped during codegen"); +// eprint_location(zelf); +// eprintln!("=== END PANIC INFO ==="); +// } +// result.unwrap() +// } + +/// The pattern context holds information about captured names and jump targets. +#[derive(Clone)] +pub struct PatternContext { + /// A list of names captured by the pattern. + pub stores: Vec, + /// If false, then any name captures against our subject will raise. + pub allow_irrefutable: bool, + /// A list of jump target labels used on pattern failure. + pub fail_pop: Vec, + /// The number of items on top of the stack that should remain. + pub on_top: usize, +} + +impl Default for PatternContext { + fn default() -> Self { + Self::new() + } +} + +impl PatternContext { + pub fn new() -> Self { + PatternContext { + stores: Vec::new(), + allow_irrefutable: false, + fail_pop: Vec::new(), + on_top: 0, + } + } + + pub fn fail_pop_size(&self) -> usize { + self.fail_pop.len() + } +} + +enum JumpOp { + Jump, + PopJumpIfFalse, +} + +impl<'src> Compiler<'src> { + fn new(opts: CompileOpts, source_code: SourceCode<'src>, code_name: String) -> Self { let module_code = ir::CodeInfo { flags: bytecode::CodeFlags::NEW_LOCALS, posonlyarg_count: 0, arg_count: 0, kwonlyarg_count: 0, - source_path: source_path.clone(), - first_line_number: LineNumber::MIN, + source_path: source_code.path.to_owned(), + first_line_number: OneIndexed::MIN, obj_name: code_name, blocks: vec![ir::Block::default()], @@ -233,10 +321,11 @@ impl Compiler { Compiler { code_stack: vec![module_code], symbol_table_stack: Vec::new(), - source_path, - current_source_location: SourceLocation::default(), + source_code, + // current_source_location: SourceLocation::default(), + current_source_range: TextRange::default(), qualified_path: Vec::new(), - done_with_future_stmts: false, + done_with_future_stmts: DoneWithFuture::No, future_annotations: false, ctx: CompileContext { loop_data: None, @@ -247,15 +336,18 @@ impl Compiler { opts, } } +} +impl Compiler<'_> { fn error(&mut self, error: CodegenErrorType) -> CodegenError { - self.error_loc(error, self.current_source_location) + self.error_ranged(error, self.current_source_range) } - fn error_loc(&mut self, error: CodegenErrorType, location: SourceLocation) -> CodegenError { + fn error_ranged(&mut self, error: CodegenErrorType, range: TextRange) -> CodegenError { + let location = self.source_code.source_location(range.start()); CodegenError { error, location: Some(location), - source_path: self.source_path.clone(), + source_path: self.source_code.path.to_owned(), } } @@ -287,7 +379,7 @@ impl Compiler { kwonlyarg_count: u32, obj_name: String, ) { - let source_path = self.source_path.clone(); + let source_path = self.source_code.path.to_owned(); let first_line_number = self.get_source_line_number(); let table = self.push_symbol_table(); @@ -330,10 +422,9 @@ impl Compiler { fn pop_code_object(&mut self) -> CodeObject { let table = self.pop_symbol_table(); assert!(table.sub_tables.is_empty()); - self.code_stack - .pop() - .unwrap() - .finalize_code(self.opts.optimize) + let pop = self.code_stack.pop(); + let stack_top = compiler_unwrap_option(self, pop); + unwrap_internal(self, stack_top.finalize_code(self.opts.optimize)) } // could take impl Into>, but everything is borrowed from ast structs; we never @@ -364,15 +455,17 @@ impl Compiler { fn compile_program( &mut self, - body: &[located_ast::Stmt], + body: &ModModule, symbol_table: SymbolTable, ) -> CompileResult<()> { let size_before = self.code_stack.len(); self.symbol_table_stack.push(symbol_table); - let (doc, statements) = split_doc(body, &self.opts); + let (doc, statements) = split_doc(&body.body, &self.opts); if let Some(value) = doc { - self.emit_load_const(ConstantData::Str { value }); + self.emit_load_const(ConstantData::Str { + value: value.into(), + }); let doc = self.name("__doc__"); emit!(self, Instruction::StoreGlobal(doc)) } @@ -392,14 +485,14 @@ impl Compiler { fn compile_program_single( &mut self, - body: &[located_ast::Stmt], + body: &[Stmt], symbol_table: SymbolTable, ) -> CompileResult<()> { self.symbol_table_stack.push(symbol_table); if let Some((last, body)) = body.split_last() { for statement in body { - if let located_ast::Stmt::Expr(located_ast::StmtExpr { value, .. }) = &statement { + if let Stmt::Expr(StmtExpr { value, .. }) = &statement { self.compile_expression(value)?; emit!(self, Instruction::PrintExpr); } else { @@ -407,7 +500,7 @@ impl Compiler { } } - if let located_ast::Stmt::Expr(located_ast::StmtExpr { value, .. }) = &last { + if let Stmt::Expr(StmtExpr { value, .. }) = &last { self.compile_expression(value)?; emit!(self, Instruction::Duplicate); emit!(self, Instruction::PrintExpr); @@ -425,7 +518,7 @@ impl Compiler { fn compile_block_expr( &mut self, - body: &[located_ast::Stmt], + body: &[Stmt], symbol_table: SymbolTable, ) -> CompileResult<()> { self.symbol_table_stack.push(symbol_table); @@ -434,13 +527,12 @@ impl Compiler { if let Some(last_statement) = body.last() { match last_statement { - located_ast::Stmt::Expr(_) => { + Stmt::Expr(_) => { self.current_block().instructions.pop(); // pop Instruction::Pop } - located_ast::Stmt::FunctionDef(_) - | located_ast::Stmt::AsyncFunctionDef(_) - | located_ast::Stmt::ClassDef(_) => { - let store_inst = self.current_block().instructions.pop().unwrap(); // pop Instruction::Store + Stmt::FunctionDef(_) | Stmt::ClassDef(_) => { + let pop_instructions = self.current_block().instructions.pop(); + let store_inst = compiler_unwrap_option(self, pop_instructions); // pop Instruction::Store emit!(self, Instruction::Duplicate); self.current_block().instructions.push(store_inst); } @@ -455,16 +547,16 @@ impl Compiler { // Compile statement in eval mode: fn compile_eval( &mut self, - expression: &located_ast::Expr, + expression: &ModExpression, symbol_table: SymbolTable, ) -> CompileResult<()> { self.symbol_table_stack.push(symbol_table); - self.compile_expression(expression)?; + self.compile_expression(&expression.body)?; self.emit_return_value(); Ok(()) } - fn compile_statements(&mut self, statements: &[located_ast::Stmt]) -> CompileResult<()> { + fn compile_statements(&mut self, statements: &[Stmt]) -> CompileResult<()> { for statement in statements { self.compile_statement(statement)? } @@ -498,8 +590,11 @@ impl Compiler { self.check_forbidden_name(&name, usage)?; let symbol_table = self.symbol_table_stack.last().unwrap(); - let symbol = symbol_table.lookup(name.as_ref()).unwrap_or_else(|| - panic!("The symbol '{name}' must be present in the symbol table, even when it is undefined in python."), + let symbol = unwrap_internal( + self, + symbol_table + .lookup(name.as_ref()) + .ok_or_else(|| InternalError::MissingSymbol(name.to_string())), ); let info = self.code_stack.last_mut().unwrap(); let mut cache = &mut info.name_cache; @@ -574,22 +669,28 @@ impl Compiler { Ok(()) } - fn compile_statement(&mut self, statement: &located_ast::Stmt) -> CompileResult<()> { - use located_ast::*; - + fn compile_statement(&mut self, statement: &Stmt) -> CompileResult<()> { + use ruff_python_ast::*; trace!("Compiling {:?}", statement); - self.set_source_location(statement.location()); + self.set_source_range(statement.range()); match &statement { // we do this here because `from __future__` still executes that `from` statement at runtime, // we still need to compile the ImportFrom down below - Stmt::ImportFrom(located_ast::StmtImportFrom { module, names, .. }) + Stmt::ImportFrom(StmtImportFrom { module, names, .. }) if module.as_ref().map(|id| id.as_str()) == Some("__future__") => { self.compile_future_features(names)? } + // ignore module-level doc comments + Stmt::Expr(StmtExpr { value, .. }) + if matches!(&**value, Expr::StringLiteral(..)) + && matches!(self.done_with_future_stmts, DoneWithFuture::No) => + { + self.done_with_future_stmts = DoneWithFuture::DoneWithDoc + } // if we find any other statement, stop accepting future statements - _ => self.done_with_future_stmts = true, + _ => self.done_with_future_stmts = DoneWithFuture::Yes, } match &statement { @@ -624,19 +725,17 @@ impl Compiler { let from_list = if import_star { if self.ctx.in_func() { - return Err(self.error_loc( + return Err(self.error_ranged( CodegenErrorType::FunctionImportStar, - statement.location(), + statement.range(), )); } - vec![ConstantData::Str { - value: "*".to_owned(), - }] + vec![ConstantData::Str { value: "*".into() }] } else { names .iter() .map(|n| ConstantData::Str { - value: n.name.to_string(), + value: n.name.as_str().into(), }) .collect() }; @@ -645,7 +744,7 @@ impl Compiler { // from .... import (*fromlist) self.emit_load_const(ConstantData::Integer { - value: level.as_ref().map_or(0, |level| level.to_u32()).into(), + value: (*level).into(), }); self.emit_load_const(ConstantData::Tuple { elements: from_list, @@ -690,52 +789,76 @@ impl Compiler { // Handled during symbol table construction. } Stmt::If(StmtIf { - test, body, orelse, .. + test, + body, + elif_else_clauses, + .. }) => { - let after_block = self.new_block(); - if orelse.is_empty() { - // Only if: - self.compile_jump_if(test, false, after_block)?; - self.compile_statements(body)?; - } else { - // if - else: - let else_block = self.new_block(); - self.compile_jump_if(test, false, else_block)?; - self.compile_statements(body)?; - emit!( - self, - Instruction::Jump { - target: after_block, + match elif_else_clauses.as_slice() { + // Only if + [] => { + let after_block = self.new_block(); + self.compile_jump_if(test, false, after_block)?; + self.compile_statements(body)?; + self.switch_to_block(after_block); + } + // If, elif*, elif/else + [rest @ .., tail] => { + let after_block = self.new_block(); + let mut next_block = self.new_block(); + + self.compile_jump_if(test, false, next_block)?; + self.compile_statements(body)?; + emit!( + self, + Instruction::Jump { + target: after_block + } + ); + + for clause in rest { + self.switch_to_block(next_block); + next_block = self.new_block(); + if let Some(test) = &clause.test { + self.compile_jump_if(test, false, next_block)?; + } else { + unreachable!() // must be elif + } + self.compile_statements(&clause.body)?; + emit!( + self, + Instruction::Jump { + target: after_block + } + ); } - ); - // else: - self.switch_to_block(else_block); - self.compile_statements(orelse)?; + self.switch_to_block(next_block); + if let Some(test) = &tail.test { + self.compile_jump_if(test, false, after_block)?; + } + self.compile_statements(&tail.body)?; + self.switch_to_block(after_block); + } } - self.switch_to_block(after_block); } Stmt::While(StmtWhile { test, body, orelse, .. }) => self.compile_while(test, body, orelse)?, - Stmt::With(StmtWith { items, body, .. }) => self.compile_with(items, body, false)?, - Stmt::AsyncWith(StmtAsyncWith { items, body, .. }) => { - self.compile_with(items, body, true)? - } - Stmt::For(StmtFor { - target, - iter, + Stmt::With(StmtWith { + items, body, - orelse, + is_async, .. - }) => self.compile_for(target, iter, body, orelse, false)?, - Stmt::AsyncFor(StmtAsyncFor { + }) => self.compile_with(items, body, *is_async)?, + Stmt::For(StmtFor { target, iter, body, orelse, + is_async, .. - }) => self.compile_for(target, iter, body, orelse, true)?, + }) => self.compile_for(target, iter, body, orelse, *is_async)?, Stmt::Match(StmtMatch { subject, cases, .. }) => self.compile_match(subject, cases)?, Stmt::Raise(StmtRaise { exc, cause, .. }) => { let kind = match exc { @@ -758,64 +881,46 @@ impl Compiler { handlers, orelse, finalbody, + is_star, .. - }) => self.compile_try_statement(body, handlers, orelse, finalbody)?, - Stmt::TryStar(StmtTryStar { - body, - handlers, - orelse, - finalbody, - .. - }) => self.compile_try_star_statement(body, handlers, orelse, finalbody)?, + }) => { + if *is_star { + self.compile_try_star_statement(body, handlers, orelse, finalbody)? + } else { + self.compile_try_statement(body, handlers, orelse, finalbody)? + } + } Stmt::FunctionDef(StmtFunctionDef { name, - args, - body, - decorator_list, - returns, - type_params, - .. - }) => self.compile_function_def( - name.as_str(), - args, - body, - decorator_list, - returns.as_deref(), - false, - type_params, - )?, - Stmt::AsyncFunctionDef(StmtAsyncFunctionDef { - name, - args, + parameters, body, decorator_list, returns, type_params, + is_async, .. }) => self.compile_function_def( name.as_str(), - args, + parameters, body, decorator_list, returns.as_deref(), - true, - type_params, + *is_async, + type_params.as_deref(), )?, Stmt::ClassDef(StmtClassDef { name, body, - bases, - keywords, decorator_list, type_params, + arguments, .. }) => self.compile_class_def( name.as_str(), body, - bases, - keywords, decorator_list, - type_params, + type_params.as_deref(), + arguments.as_deref(), )?, Stmt::Assert(StmtAssert { test, msg, .. }) => { // if some flag, ignore all assert statements! @@ -850,7 +955,7 @@ impl Compiler { } None => { return Err( - self.error_loc(CodegenErrorType::InvalidBreak, statement.location()) + self.error_ranged(CodegenErrorType::InvalidBreak, statement.range()) ); } }, @@ -860,14 +965,14 @@ impl Compiler { } None => { return Err( - self.error_loc(CodegenErrorType::InvalidContinue, statement.location()) + self.error_ranged(CodegenErrorType::InvalidContinue, statement.range()) ); } }, Stmt::Return(StmtReturn { value, .. }) => { if !self.ctx.in_func() { return Err( - self.error_loc(CodegenErrorType::InvalidReturn, statement.location()) + self.error_ranged(CodegenErrorType::InvalidReturn, statement.range()) ); } match value { @@ -878,9 +983,9 @@ impl Compiler { .flags .contains(bytecode::CodeFlags::IS_GENERATOR) { - return Err(self.error_loc( + return Err(self.error_ranged( CodegenErrorType::AsyncReturnValue, - statement.location(), + statement.range(), )); } self.compile_expression(v)?; @@ -924,49 +1029,55 @@ impl Compiler { value, .. }) => { - let name_string = name.to_string(); - if !type_params.is_empty() { + // let name_string = name.to_string(); + let Some(name) = name.as_name_expr() else { + // FIXME: is error here? + return Err(self.error(CodegenErrorType::SyntaxError( + "type alias expect name".to_owned(), + ))); + }; + let name_string = name.id.to_string(); + if type_params.is_some() { self.push_symbol_table(); } self.compile_expression(value)?; - self.compile_type_params(type_params)?; - if !type_params.is_empty() { + if let Some(type_params) = type_params { + self.compile_type_params(type_params)?; self.pop_symbol_table(); } self.emit_load_const(ConstantData::Str { - value: name_string.clone(), + value: name_string.clone().into(), }); emit!(self, Instruction::TypeAlias); self.store_name(&name_string)?; } + Stmt::IpyEscapeCommand(_) => todo!(), } Ok(()) } - fn compile_delete(&mut self, expression: &located_ast::Expr) -> CompileResult<()> { + fn compile_delete(&mut self, expression: &Expr) -> CompileResult<()> { + use ruff_python_ast::*; match &expression { - located_ast::Expr::Name(located_ast::ExprName { id, .. }) => { - self.compile_name(id.as_str(), NameUsage::Delete)? - } - located_ast::Expr::Attribute(located_ast::ExprAttribute { value, attr, .. }) => { + Expr::Name(ExprName { id, .. }) => self.compile_name(id.as_str(), NameUsage::Delete)?, + Expr::Attribute(ExprAttribute { value, attr, .. }) => { self.check_forbidden_name(attr.as_str(), NameUsage::Delete)?; self.compile_expression(value)?; let idx = self.name(attr.as_str()); emit!(self, Instruction::DeleteAttr { idx }); } - located_ast::Expr::Subscript(located_ast::ExprSubscript { value, slice, .. }) => { + Expr::Subscript(ExprSubscript { value, slice, .. }) => { self.compile_expression(value)?; self.compile_expression(slice)?; emit!(self, Instruction::DeleteSubscript); } - located_ast::Expr::Tuple(located_ast::ExprTuple { elts, .. }) - | located_ast::Expr::List(located_ast::ExprList { elts, .. }) => { + Expr::Tuple(ExprTuple { elts, .. }) | Expr::List(ExprList { elts, .. }) => { for element in elts { self.compile_delete(element)?; } } - located_ast::Expr::BinOp(_) | located_ast::Expr::UnaryOp(_) => { - return Err(self.error(CodegenErrorType::Delete("expression"))) + Expr::BinOp(_) | Expr::UnaryOp(_) => { + return Err(self.error(CodegenErrorType::Delete("expression"))); } _ => return Err(self.error(CodegenErrorType::Delete(expression.python_name()))), } @@ -976,9 +1087,13 @@ impl Compiler { fn enter_function( &mut self, name: &str, - args: &located_ast::Arguments, + parameters: &Parameters, ) -> CompileResult { - let defaults: Vec<_> = args.defaults().collect(); + let defaults: Vec<_> = std::iter::empty() + .chain(¶meters.posonlyargs) + .chain(¶meters.args) + .filter_map(|x| x.default.as_deref()) + .collect(); let have_defaults = !defaults.is_empty(); if have_defaults { // Construct a tuple: @@ -989,12 +1104,23 @@ impl Compiler { emit!(self, Instruction::BuildTuple { size }); } - let (kw_without_defaults, kw_with_defaults) = args.split_kwonlyargs(); + // TODO: partition_in_place + let mut kw_without_defaults = vec![]; + let mut kw_with_defaults = vec![]; + for kwonlyarg in ¶meters.kwonlyargs { + if let Some(default) = &kwonlyarg.default { + kw_with_defaults.push((&kwonlyarg.parameter, default)); + } else { + kw_without_defaults.push(&kwonlyarg.parameter); + } + } + + // let (kw_without_defaults, kw_with_defaults) = args.split_kwonlyargs(); if !kw_with_defaults.is_empty() { let default_kw_count = kw_with_defaults.len(); for (arg, default) in kw_with_defaults.iter() { self.emit_load_const(ConstantData::Str { - value: arg.arg.to_string(), + value: arg.name.as_str().into(), }); self.compile_expression(default)?; } @@ -1016,42 +1142,42 @@ impl Compiler { self.push_output( bytecode::CodeFlags::NEW_LOCALS | bytecode::CodeFlags::IS_OPTIMIZED, - args.posonlyargs.len().to_u32(), - (args.posonlyargs.len() + args.args.len()).to_u32(), - args.kwonlyargs.len().to_u32(), + parameters.posonlyargs.len().to_u32(), + (parameters.posonlyargs.len() + parameters.args.len()).to_u32(), + parameters.kwonlyargs.len().to_u32(), name.to_owned(), ); let args_iter = std::iter::empty() - .chain(&args.posonlyargs) - .chain(&args.args) - .map(|arg| arg.as_arg()) + .chain(¶meters.posonlyargs) + .chain(¶meters.args) + .map(|arg| &arg.parameter) .chain(kw_without_defaults) .chain(kw_with_defaults.into_iter().map(|(arg, _)| arg)); for name in args_iter { - self.varname(name.arg.as_str())?; + self.varname(name.name.as_str())?; } - if let Some(name) = args.vararg.as_deref() { + if let Some(name) = parameters.vararg.as_deref() { self.current_code_info().flags |= bytecode::CodeFlags::HAS_VARARGS; - self.varname(name.arg.as_str())?; + self.varname(name.name.as_str())?; } - if let Some(name) = args.kwarg.as_deref() { + if let Some(name) = parameters.kwarg.as_deref() { self.current_code_info().flags |= bytecode::CodeFlags::HAS_VARKEYWORDS; - self.varname(name.arg.as_str())?; + self.varname(name.name.as_str())?; } Ok(func_flags) } - fn prepare_decorators(&mut self, decorator_list: &[located_ast::Expr]) -> CompileResult<()> { + fn prepare_decorators(&mut self, decorator_list: &[Decorator]) -> CompileResult<()> { for decorator in decorator_list { - self.compile_expression(decorator)?; + self.compile_expression(&decorator.expression)?; } Ok(()) } - fn apply_decorators(&mut self, decorator_list: &[located_ast::Expr]) { + fn apply_decorators(&mut self, decorator_list: &[Decorator]) { // Apply decorators: for _ in decorator_list { emit!(self, Instruction::CallFunctionPositional { nargs: 1 }); @@ -1060,18 +1186,14 @@ impl Compiler { /// Store each type parameter so it is accessible to the current scope, and leave a tuple of /// all the type parameters on the stack. - fn compile_type_params(&mut self, type_params: &[located_ast::TypeParam]) -> CompileResult<()> { - for type_param in type_params { + fn compile_type_params(&mut self, type_params: &TypeParams) -> CompileResult<()> { + for type_param in &type_params.type_params { match type_param { - located_ast::TypeParam::TypeVar(located_ast::TypeParamTypeVar { - name, - bound, - .. - }) => { + TypeParam::TypeVar(TypeParamTypeVar { name, bound, .. }) => { if let Some(expr) = &bound { self.compile_expression(expr)?; self.emit_load_const(ConstantData::Str { - value: name.to_string(), + value: name.as_str().into(), }); emit!(self, Instruction::TypeVarWithBound); emit!(self, Instruction::Duplicate); @@ -1079,15 +1201,29 @@ impl Compiler { } else { // self.store_name(type_name.as_str())?; self.emit_load_const(ConstantData::Str { - value: name.to_string(), + value: name.as_str().into(), }); emit!(self, Instruction::TypeVar); emit!(self, Instruction::Duplicate); self.store_name(name.as_ref())?; } } - located_ast::TypeParam::ParamSpec(_) => todo!(), - located_ast::TypeParam::TypeVarTuple(_) => todo!(), + TypeParam::ParamSpec(TypeParamParamSpec { name, .. }) => { + self.emit_load_const(ConstantData::Str { + value: name.as_str().into(), + }); + emit!(self, Instruction::ParamSpec); + emit!(self, Instruction::Duplicate); + self.store_name(name.as_ref())?; + } + TypeParam::TypeVarTuple(TypeParamTypeVarTuple { name, .. }) => { + self.emit_load_const(ConstantData::Str { + value: name.as_str().into(), + }); + emit!(self, Instruction::TypeVarTuple); + emit!(self, Instruction::Duplicate); + self.store_name(name.as_ref())?; + } }; } emit!( @@ -1101,10 +1237,10 @@ impl Compiler { fn compile_try_statement( &mut self, - body: &[located_ast::Stmt], - handlers: &[located_ast::ExceptHandler], - orelse: &[located_ast::Stmt], - finalbody: &[located_ast::Stmt], + body: &[Stmt], + handlers: &[ExceptHandler], + orelse: &[Stmt], + finalbody: &[Stmt], ) -> CompileResult<()> { let handler_block = self.new_block(); let finally_block = self.new_block(); @@ -1136,11 +1272,9 @@ impl Compiler { self.switch_to_block(handler_block); // Exception is on top of stack now for handler in handlers { - let located_ast::ExceptHandler::ExceptHandler( - located_ast::ExceptHandlerExceptHandler { - type_, name, body, .. - }, - ) = &handler; + let ExceptHandler::ExceptHandler(ExceptHandlerExceptHandler { + type_, name, body, .. + }) = &handler; let next_handler = self.new_block(); // If we gave a typ, @@ -1185,7 +1319,7 @@ impl Compiler { if !finalbody.is_empty() { emit!(self, Instruction::PopBlock); // pop excepthandler block - // We enter the finally block, without exception. + // We enter the finally block, without exception. emit!(self, Instruction::EnterFinally); } @@ -1233,10 +1367,10 @@ impl Compiler { fn compile_try_star_statement( &mut self, - _body: &[located_ast::Stmt], - _handlers: &[located_ast::ExceptHandler], - _orelse: &[located_ast::Stmt], - _finalbody: &[located_ast::Stmt], + _body: &[Stmt], + _handlers: &[ExceptHandler], + _orelse: &[Stmt], + _finalbody: &[Stmt], ) -> CompileResult<()> { Err(self.error(CodegenErrorType::NotImplementedYet)) } @@ -1249,21 +1383,21 @@ impl Compiler { fn compile_function_def( &mut self, name: &str, - args: &located_ast::Arguments, - body: &[located_ast::Stmt], - decorator_list: &[located_ast::Expr], - returns: Option<&located_ast::Expr>, // TODO: use type hint somehow.. + parameters: &Parameters, + body: &[Stmt], + decorator_list: &[Decorator], + returns: Option<&Expr>, // TODO: use type hint somehow.. is_async: bool, - type_params: &[located_ast::TypeParam], + type_params: Option<&TypeParams>, ) -> CompileResult<()> { self.prepare_decorators(decorator_list)?; // If there are type params, we need to push a special symbol table just for them - if !type_params.is_empty() { + if type_params.is_some() { self.push_symbol_table(); } - let mut func_flags = self.enter_function(name, args)?; + let mut func_flags = self.enter_function(name, parameters)?; self.current_code_info() .flags .set(bytecode::CodeFlags::IS_COROUTINE, is_async); @@ -1295,7 +1429,7 @@ impl Compiler { // Emit None at end: match body.last() { - Some(located_ast::Stmt::Return(_)) => { + Some(Stmt::Return(_)) => { // the last instruction is a ReturnValue already, we don't need to emit it } _ => { @@ -1309,7 +1443,7 @@ impl Compiler { self.ctx = prev_ctx; // Prepare generic type parameters: - if !type_params.is_empty() { + if let Some(type_params) = type_params { self.compile_type_params(type_params)?; func_flags |= bytecode::MakeFunctionFlags::TYPE_PARAMS; } @@ -1321,24 +1455,24 @@ impl Compiler { if let Some(annotation) = returns { // key: self.emit_load_const(ConstantData::Str { - value: "return".to_owned(), + value: "return".into(), }); // value: self.compile_annotation(annotation)?; num_annotations += 1; } - let args_iter = std::iter::empty() - .chain(&args.posonlyargs) - .chain(&args.args) - .chain(&args.kwonlyargs) - .map(|arg| arg.as_arg()) - .chain(args.vararg.as_deref()) - .chain(args.kwarg.as_deref()); - for arg in args_iter { - if let Some(annotation) = &arg.annotation { + let parameters_iter = std::iter::empty() + .chain(¶meters.posonlyargs) + .chain(¶meters.args) + .chain(¶meters.kwonlyargs) + .map(|x| &x.parameter) + .chain(parameters.vararg.as_deref()) + .chain(parameters.kwarg.as_deref()); + for param in parameters_iter { + if let Some(annotation) = ¶m.annotation { self.emit_load_const(ConstantData::Str { - value: self.mangle(arg.arg.as_str()).into_owned(), + value: self.mangle(param.name.as_str()).into_owned().into(), }); self.compile_annotation(annotation)?; num_annotations += 1; @@ -1360,7 +1494,7 @@ impl Compiler { } // Pop the special type params symbol table - if !type_params.is_empty() { + if type_params.is_some() { self.pop_symbol_table(); } @@ -1368,7 +1502,7 @@ impl Compiler { code: Box::new(code), }); self.emit_load_const(ConstantData::Str { - value: qualified_name, + value: qualified_name.into(), }); // Turn code object into function object: @@ -1376,7 +1510,9 @@ impl Compiler { if let Some(value) = doc_str { emit!(self, Instruction::Duplicate); - self.emit_load_const(ConstantData::Str { value }); + self.emit_load_const(ConstantData::Str { + value: value.into(), + }); emit!(self, Instruction::Rotate2); let doc = self.name("__doc__"); emit!(self, Instruction::StoreAttr { idx: doc }); @@ -1393,12 +1529,12 @@ impl Compiler { } for var in &*code.freevars { let table = self.symbol_table_stack.last().unwrap(); - let symbol = table.lookup(var).unwrap_or_else(|| { - panic!( - "couldn't look up var {} in {} in {}", - var, code.obj_name, self.source_path - ) - }); + let symbol = unwrap_internal( + self, + table + .lookup(var) + .ok_or_else(|| InternalError::MissingSymbol(var.to_owned())), + ); let parent_code = self.code_stack.last().unwrap(); let vars = match symbol.scope { SymbolScope::Free => &parent_code.freevar_cache, @@ -1425,17 +1561,21 @@ impl Compiler { } // Python/compile.c find_ann - fn find_ann(body: &[located_ast::Stmt]) -> bool { - use located_ast::*; - + fn find_ann(body: &[Stmt]) -> bool { + use ruff_python_ast::*; for statement in body { let res = match &statement { Stmt::AnnAssign(_) => true, Stmt::For(StmtFor { body, orelse, .. }) => { Self::find_ann(body) || Self::find_ann(orelse) } - Stmt::If(StmtIf { body, orelse, .. }) => { - Self::find_ann(body) || Self::find_ann(orelse) + Stmt::If(StmtIf { + body, + elif_else_clauses, + .. + }) => { + Self::find_ann(body) + || elif_else_clauses.iter().any(|x| Self::find_ann(&x.body)) } Stmt::While(StmtWhile { body, orelse, .. }) => { Self::find_ann(body) || Self::find_ann(orelse) @@ -1459,16 +1599,13 @@ impl Compiler { fn compile_class_def( &mut self, name: &str, - body: &[located_ast::Stmt], - bases: &[located_ast::Expr], - keywords: &[located_ast::Keyword], - decorator_list: &[located_ast::Expr], - type_params: &[located_ast::TypeParam], + body: &[Stmt], + decorator_list: &[Decorator], + type_params: Option<&TypeParams>, + arguments: Option<&Arguments>, ) -> CompileResult<()> { self.prepare_decorators(decorator_list)?; - emit!(self, Instruction::LoadBuildClass); - let prev_ctx = self.ctx; self.ctx = CompileContext { func: FunctionContext::NoFunction, @@ -1476,12 +1613,15 @@ impl Compiler { loop_data: None, }; - let prev_class_name = std::mem::replace(&mut self.class_name, Some(name.to_owned())); + let prev_class_name = self.class_name.replace(name.to_owned()); // Check if the class is declared global let symbol_table = self.symbol_table_stack.last().unwrap(); - let symbol = symbol_table.lookup(name.as_ref()).expect( - "The symbol must be present in the symbol table, even when it is undefined in python.", + let symbol = unwrap_internal( + self, + symbol_table + .lookup(name.as_ref()) + .ok_or_else(|| InternalError::MissingSymbol(name.to_owned())), ); let mut global_path_prefix = Vec::new(); if symbol.scope == SymbolScope::GlobalExplicit { @@ -1491,7 +1631,7 @@ impl Compiler { let qualified_name = self.qualified_path.join("."); // If there are type params, we need to push a special symbol table just for them - if !type_params.is_empty() { + if type_params.is_some() { self.push_symbol_table(); } @@ -1504,7 +1644,7 @@ impl Compiler { let dunder_module = self.name("__module__"); emit!(self, Instruction::StoreLocal(dunder_module)); self.emit_load_const(ConstantData::Str { - value: qualified_name, + value: qualified_name.into(), }); let qualname = self.name("__qualname__"); emit!(self, Instruction::StoreLocal(qualname)); @@ -1543,10 +1683,12 @@ impl Compiler { self.qualified_path.append(global_path_prefix.as_mut()); self.ctx = prev_ctx; + emit!(self, Instruction::LoadBuildClass); + let mut func_flags = bytecode::MakeFunctionFlags::empty(); // Prepare generic type parameters: - if !type_params.is_empty() { + if let Some(type_params) = type_params { self.compile_type_params(type_params)?; func_flags |= bytecode::MakeFunctionFlags::TYPE_PARAMS; } @@ -1556,25 +1698,26 @@ impl Compiler { } // Pop the special type params symbol table - if !type_params.is_empty() { + if type_params.is_some() { self.pop_symbol_table(); } self.emit_load_const(ConstantData::Code { code: Box::new(code), }); - self.emit_load_const(ConstantData::Str { - value: name.to_owned(), - }); + self.emit_load_const(ConstantData::Str { value: name.into() }); // Turn code object into function object: emit!(self, Instruction::MakeFunction(func_flags)); - self.emit_load_const(ConstantData::Str { - value: name.to_owned(), - }); + self.emit_load_const(ConstantData::Str { value: name.into() }); - let call = self.compile_call_inner(2, bases, keywords)?; + // Call the __build_class__ builtin + let call = if let Some(arguments) = arguments { + self.compile_call_inner(2, arguments)? + } else { + CallType::Positional { nargs: 2 } + }; self.compile_normal_call(call); self.apply_decorators(decorator_list); @@ -1588,17 +1731,12 @@ impl Compiler { // Doc string value: self.emit_load_const(match doc_str { - Some(doc) => ConstantData::Str { value: doc }, + Some(doc) => ConstantData::Str { value: doc.into() }, None => ConstantData::None, // set docstring None if not declared }); } - fn compile_while( - &mut self, - test: &located_ast::Expr, - body: &[located_ast::Stmt], - orelse: &[located_ast::Stmt], - ) -> CompileResult<()> { + fn compile_while(&mut self, test: &Expr, body: &[Stmt], orelse: &[Stmt]) -> CompileResult<()> { let while_block = self.new_block(); let else_block = self.new_block(); let after_block = self.new_block(); @@ -1626,11 +1764,11 @@ impl Compiler { fn compile_with( &mut self, - items: &[located_ast::WithItem], - body: &[located_ast::Stmt], + items: &[WithItem], + body: &[Stmt], is_async: bool, ) -> CompileResult<()> { - let with_location = self.current_source_location; + let with_range = self.current_source_range; let Some((item, items)) = items.split_first() else { return Err(self.error(CodegenErrorType::EmptyWithItems)); @@ -1640,7 +1778,7 @@ impl Compiler { let final_block = self.new_block(); self.compile_expression(&item.context_expr)?; - self.set_source_location(with_location); + self.set_source_range(with_range); if is_async { emit!(self, Instruction::BeforeAsyncWith); emit!(self, Instruction::GetAwaitable); @@ -1653,7 +1791,7 @@ impl Compiler { match &item.optional_vars { Some(var) => { - self.set_source_location(var.location()); + self.set_source_range(var.range()); self.compile_store(var)?; } None => { @@ -1669,13 +1807,13 @@ impl Compiler { } self.compile_statements(body)?; } else { - self.set_source_location(with_location); + self.set_source_range(with_range); self.compile_with(items, body, is_async)?; } // sort of "stack up" the layers of with blocks: // with a, b: body -> start_with(a) start_with(b) body() end_with(b) end_with(a) - self.set_source_location(with_location); + self.set_source_range(with_range); emit!(self, Instruction::PopBlock); emit!(self, Instruction::EnterFinally); @@ -1696,10 +1834,10 @@ impl Compiler { fn compile_for( &mut self, - target: &located_ast::Expr, - iter: &located_ast::Expr, - body: &[located_ast::Stmt], - orelse: &[located_ast::Stmt], + target: &Expr, + iter: &Expr, + body: &[Stmt], + orelse: &[Stmt], is_async: bool, ) -> CompileResult<()> { // Start loop @@ -1755,142 +1893,1009 @@ impl Compiler { Ok(()) } - fn compile_match( - &mut self, - subject: &located_ast::Expr, - cases: &[located_ast::MatchCase], - ) -> CompileResult<()> { - eprintln!("match subject: {subject:?}"); - eprintln!("match cases: {cases:?}"); - Err(self.error(CodegenErrorType::NotImplementedYet)) + fn forbidden_name(&mut self, name: &str, ctx: NameUsage) -> CompileResult { + if ctx == NameUsage::Store && name == "__debug__" { + return Err(self.error(CodegenErrorType::Assign("__debug__"))); + // return Ok(true); + } + if ctx == NameUsage::Delete && name == "__debug__" { + return Err(self.error(CodegenErrorType::Delete("__debug__"))); + // return Ok(true); + } + Ok(false) } - fn compile_chained_comparison( - &mut self, - left: &located_ast::Expr, - ops: &[located_ast::CmpOp], - exprs: &[located_ast::Expr], - ) -> CompileResult<()> { - assert!(!ops.is_empty()); - assert_eq!(exprs.len(), ops.len()); - let (last_op, mid_ops) = ops.split_last().unwrap(); - let (last_val, mid_exprs) = exprs.split_last().unwrap(); - - use bytecode::ComparisonOperator::*; - use bytecode::TestOperator::*; - let compile_cmpop = |c: &mut Self, op: &located_ast::CmpOp| match op { - located_ast::CmpOp::Eq => emit!(c, Instruction::CompareOperation { op: Equal }), - located_ast::CmpOp::NotEq => emit!(c, Instruction::CompareOperation { op: NotEqual }), - located_ast::CmpOp::Lt => emit!(c, Instruction::CompareOperation { op: Less }), - located_ast::CmpOp::LtE => emit!(c, Instruction::CompareOperation { op: LessOrEqual }), - located_ast::CmpOp::Gt => emit!(c, Instruction::CompareOperation { op: Greater }), - located_ast::CmpOp::GtE => { - emit!(c, Instruction::CompareOperation { op: GreaterOrEqual }) - } - located_ast::CmpOp::In => emit!(c, Instruction::TestOperation { op: In }), - located_ast::CmpOp::NotIn => emit!(c, Instruction::TestOperation { op: NotIn }), - located_ast::CmpOp::Is => emit!(c, Instruction::TestOperation { op: Is }), - located_ast::CmpOp::IsNot => emit!(c, Instruction::TestOperation { op: IsNot }), - }; - - // a == b == c == d - // compile into (pseudo code): - // result = a == b - // if result: - // result = b == c - // if result: - // result = c == d - - // initialize lhs outside of loop - self.compile_expression(left)?; - - let end_blocks = if mid_exprs.is_empty() { - None - } else { - let break_block = self.new_block(); - let after_block = self.new_block(); - Some((break_block, after_block)) - }; - - // for all comparisons except the last (as the last one doesn't need a conditional jump) - for (op, val) in mid_ops.iter().zip(mid_exprs) { - self.compile_expression(val)?; - // store rhs for the next comparison in chain - emit!(self, Instruction::Duplicate); - emit!(self, Instruction::Rotate3); + fn compile_error_forbidden_name(&mut self, name: &str) -> CodegenError { + // TODO: make into error (fine for now since it realistically errors out earlier) + panic!("Failing due to forbidden name {:?}", name); + } - compile_cmpop(self, op); + /// Ensures that `pc.fail_pop` has at least `n + 1` entries. + /// If not, new labels are generated and pushed until the required size is reached. + fn ensure_fail_pop(&mut self, pc: &mut PatternContext, n: usize) -> CompileResult<()> { + let required_size = n + 1; + if required_size <= pc.fail_pop.len() { + return Ok(()); + } + while pc.fail_pop.len() < required_size { + let new_block = self.new_block(); + pc.fail_pop.push(new_block); + } + Ok(()) + } - // if comparison result is false, we break with this value; if true, try the next one. - if let Some((break_block, _)) = end_blocks { + fn jump_to_fail_pop(&mut self, pc: &mut PatternContext, op: JumpOp) -> CompileResult<()> { + // Compute the total number of items to pop: + // items on top plus the captured objects. + let pops = pc.on_top + pc.stores.len(); + // Ensure that the fail_pop vector has at least `pops + 1` elements. + self.ensure_fail_pop(pc, pops)?; + // Emit a jump using the jump target stored at index `pops`. + match op { + JumpOp::Jump => { emit!( self, - Instruction::JumpIfFalseOrPop { - target: break_block, + Instruction::Jump { + target: pc.fail_pop[pops] + } + ); + } + JumpOp::PopJumpIfFalse => { + emit!( + self, + Instruction::JumpIfFalse { + target: pc.fail_pop[pops] } ); } } + Ok(()) + } - // handle the last comparison - self.compile_expression(last_val)?; - compile_cmpop(self, last_op); - - if let Some((break_block, after_block)) = end_blocks { - emit!( - self, - Instruction::Jump { - target: after_block, - } - ); - - // early exit left us with stack: `rhs, comparison_result`. We need to clean up rhs. - self.switch_to_block(break_block); - emit!(self, Instruction::Rotate2); + /// Emits the necessary POP instructions for all failure targets in the pattern context, + /// then resets the fail_pop vector. + fn emit_and_reset_fail_pop(&mut self, pc: &mut PatternContext) -> CompileResult<()> { + // If the fail_pop vector is empty, nothing needs to be done. + if pc.fail_pop.is_empty() { + debug_assert!(pc.fail_pop.is_empty()); + return Ok(()); + } + // Iterate over the fail_pop vector in reverse order, skipping the first label. + for &label in pc.fail_pop.iter().skip(1).rev() { + self.switch_to_block(label); + // Emit the POP instruction. emit!(self, Instruction::Pop); - - self.switch_to_block(after_block); } - + // Finally, use the first label. + self.switch_to_block(pc.fail_pop[0]); + pc.fail_pop.clear(); + // Free the memory used by the vector. + pc.fail_pop.shrink_to_fit(); Ok(()) } - fn compile_annotation(&mut self, annotation: &located_ast::Expr) -> CompileResult<()> { - if self.future_annotations { - self.emit_load_const(ConstantData::Str { - value: annotation.to_string(), - }); - } else { - self.compile_expression(annotation)?; + /// Duplicate the effect of Python 3.10's ROT_* instructions using SWAPs. + fn pattern_helper_rotate(&mut self, mut count: usize) -> CompileResult<()> { + while count > 1 { + // Emit a SWAP instruction with the current count. + emit!( + self, + Instruction::Swap { + index: u32::try_from(count).unwrap() + } + ); + count -= 1; } Ok(()) } - fn compile_annotated_assign( + /// Helper to store a captured name for a star pattern. + /// + /// If `n` is `None`, it emits a POP_TOP instruction. Otherwise, it first + /// checks that the name is allowed and not already stored. Then it rotates + /// the object on the stack beneath any preserved items and appends the name + /// to the list of captured names. + fn pattern_helper_store_name( &mut self, - target: &located_ast::Expr, - annotation: &located_ast::Expr, - value: Option<&located_ast::Expr>, + n: Option<&Identifier>, + pc: &mut PatternContext, ) -> CompileResult<()> { - if let Some(value) = value { - self.compile_expression(value)?; - self.compile_store(target)?; - } + match n { + // If no name is provided, simply pop the top of the stack. + None => { + emit!(self, Instruction::Pop); + Ok(()) + } + Some(name) => { + // Check if the name is forbidden for storing. + if self.forbidden_name(name.as_str(), NameUsage::Store)? { + return Err(self.compile_error_forbidden_name(name.as_str())); + } - // Annotations are only evaluated in a module or class. - if self.ctx.in_func() { - return Ok(()); - } + // Ensure we don't store the same name twice. + // TODO: maybe pc.stores should be a set? + if pc.stores.contains(&name.to_string()) { + return Err( + self.error(CodegenErrorType::DuplicateStore(name.as_str().to_string())) + ); + } - // Compile annotation: - self.compile_annotation(annotation)?; + // Calculate how many items to rotate: + let rotations = pc.on_top + pc.stores.len() + 1; + self.pattern_helper_rotate(rotations)?; - if let located_ast::Expr::Name(located_ast::ExprName { id, .. }) = &target { - // Store as dict entry in __annotations__ dict: - let annotations = self.name("__annotations__"); + // Append the name to the captured stores. + pc.stores.push(name.to_string()); + Ok(()) + } + } + } + + fn pattern_unpack_helper(&mut self, elts: &[Pattern]) -> CompileResult<()> { + let n = elts.len(); + let mut seen_star = false; + for (i, elt) in elts.iter().enumerate() { + if elt.is_match_star() { + if !seen_star { + if i >= (1 << 8) || (n - i - 1) >= ((i32::MAX as usize) >> 8) { + todo!(); + // return self.compiler_error(loc, "too many expressions in star-unpacking sequence pattern"); + } + let args = UnpackExArgs { + before: u8::try_from(i).unwrap(), + after: u8::try_from(n - i - 1).unwrap(), + }; + emit!(self, Instruction::UnpackEx { args }); + seen_star = true; + } else { + // TODO: Fix error msg + return Err(self.error(CodegenErrorType::MultipleStarArgs)); + // return self.compiler_error(loc, "multiple starred expressions in sequence pattern"); + } + } + } + if !seen_star { + emit!( + self, + Instruction::UnpackSequence { + size: u32::try_from(n).unwrap() + } + ); + } + Ok(()) + } + + fn pattern_helper_sequence_unpack( + &mut self, + patterns: &[Pattern], + _star: Option, + pc: &mut PatternContext, + ) -> CompileResult<()> { + // Unpack the sequence into individual subjects. + self.pattern_unpack_helper(patterns)?; + let size = patterns.len(); + // Increase the on_top counter for the newly unpacked subjects. + pc.on_top += size; + // For each unpacked subject, compile its subpattern. + for pattern in patterns { + // Decrement on_top for each subject as it is consumed. + pc.on_top -= 1; + self.compile_pattern_subpattern(pattern, pc)?; + } + Ok(()) + } + + fn pattern_helper_sequence_subscr( + &mut self, + patterns: &[Pattern], + star: usize, + pc: &mut PatternContext, + ) -> CompileResult<()> { + // Keep the subject around for extracting elements. + pc.on_top += 1; + for (i, pattern) in patterns.iter().enumerate() { + // if pattern.is_wildcard() { + // continue; + // } + if i == star { + // This must be a starred wildcard. + // assert!(pattern.is_star_wildcard()); + continue; + } + // Duplicate the subject. + emit!(self, Instruction::CopyItem { index: 1_u32 }); + if i < star { + // For indices before the star, use a nonnegative index equal to i. + self.emit_load_const(ConstantData::Integer { value: i.into() }); + } else { + // For indices after the star, compute a nonnegative index: + // index = len(subject) - (size - i) + emit!(self, Instruction::GetLen); + self.emit_load_const(ConstantData::Integer { + value: (patterns.len() - 1).into(), + }); + // Subtract to compute the correct index. + emit!( + self, + Instruction::BinaryOperation { + op: BinaryOperator::Subtract + } + ); + } + // Use BINARY_OP/NB_SUBSCR to extract the element. + emit!(self, Instruction::BinarySubscript); + // Compile the subpattern in irrefutable mode. + self.compile_pattern_subpattern(pattern, pc)?; + } + // Pop the subject off the stack. + pc.on_top -= 1; + emit!(self, Instruction::Pop); + Ok(()) + } + + fn compile_pattern_subpattern( + &mut self, + p: &Pattern, + pc: &mut PatternContext, + ) -> CompileResult<()> { + // Save the current allow_irrefutable state. + let old_allow_irrefutable = pc.allow_irrefutable; + // Temporarily allow irrefutable patterns. + pc.allow_irrefutable = true; + // Compile the pattern. + self.compile_pattern(p, pc)?; + // Restore the original state. + pc.allow_irrefutable = old_allow_irrefutable; + Ok(()) + } + + fn compile_pattern_as( + &mut self, + p: &PatternMatchAs, + pc: &mut PatternContext, + ) -> CompileResult<()> { + // If there is no sub-pattern, then it's an irrefutable match. + if p.pattern.is_none() { + if !pc.allow_irrefutable { + if let Some(_name) = p.name.as_ref() { + // TODO: This error message does not match cpython exactly + // A name capture makes subsequent patterns unreachable. + return Err(self.error(CodegenErrorType::UnreachablePattern( + PatternUnreachableReason::NameCapture, + ))); + } else { + // A wildcard makes remaining patterns unreachable. + return Err(self.error(CodegenErrorType::UnreachablePattern( + PatternUnreachableReason::Wildcard, + ))); + } + } + // If irrefutable matches are allowed, store the name (if any). + return self.pattern_helper_store_name(p.name.as_ref(), pc); + } + + // Otherwise, there is a sub-pattern. Duplicate the object on top of the stack. + pc.on_top += 1; + emit!(self, Instruction::CopyItem { index: 1_u32 }); + // Compile the sub-pattern. + self.compile_pattern(p.pattern.as_ref().unwrap(), pc)?; + // After success, decrement the on_top counter. + pc.on_top -= 1; + // Store the captured name (if any). + self.pattern_helper_store_name(p.name.as_ref(), pc)?; + Ok(()) + } + + fn compile_pattern_star( + &mut self, + p: &PatternMatchStar, + pc: &mut PatternContext, + ) -> CompileResult<()> { + self.pattern_helper_store_name(p.name.as_ref(), pc)?; + Ok(()) + } + + /// Validates that keyword attributes in a class pattern are allowed + /// and not duplicated. + fn validate_kwd_attrs( + &mut self, + attrs: &[Identifier], + _patterns: &[Pattern], + ) -> CompileResult<()> { + let n_attrs = attrs.len(); + for i in 0..n_attrs { + let attr = attrs[i].as_str(); + // Check if the attribute name is forbidden in a Store context. + if self.forbidden_name(attr, NameUsage::Store)? { + // Return an error if the name is forbidden. + return Err(self.compile_error_forbidden_name(attr)); + } + // Check for duplicates: compare with every subsequent attribute. + for ident in attrs.iter().take(n_attrs).skip(i + 1) { + let other = ident.as_str(); + if attr == other { + return Err(self.error(CodegenErrorType::RepeatedAttributePattern)); + } + } + } + Ok(()) + } + + fn compile_pattern_class( + &mut self, + p: &PatternMatchClass, + pc: &mut PatternContext, + ) -> CompileResult<()> { + // Extract components from the MatchClass pattern. + let match_class = p; + let patterns = &match_class.arguments.patterns; + + // Extract keyword attributes and patterns. + // Capacity is pre-allocated based on the number of keyword arguments. + let mut kwd_attrs = Vec::with_capacity(match_class.arguments.keywords.len()); + let mut kwd_patterns = Vec::with_capacity(match_class.arguments.keywords.len()); + for kwd in &match_class.arguments.keywords { + kwd_attrs.push(kwd.attr.clone()); + kwd_patterns.push(kwd.pattern.clone()); + } + + let nargs = patterns.len(); + let n_attrs = kwd_attrs.len(); + + // Check for too many sub-patterns. + if nargs > u32::MAX as usize || (nargs + n_attrs).saturating_sub(1) > i32::MAX as usize { + let msg = format!( + "too many sub-patterns in class pattern {:?}", + match_class.cls + ); + panic!("{}", msg); + // return self.compiler_error(&msg); + } + + // Validate keyword attributes if any. + if n_attrs != 0 { + self.validate_kwd_attrs(&kwd_attrs, &kwd_patterns)?; + } + + // Compile the class expression. + self.compile_expression(&match_class.cls)?; + + // Create a new tuple of attribute names. + let mut attr_names = vec![]; + for name in kwd_attrs.iter() { + // Py_NewRef(name) is emulated by cloning the name into a PyObject. + attr_names.push(ConstantData::Str { + value: name.as_str().to_string().into(), + }); + } + + use bytecode::TestOperator::*; + + // Emit instructions: + // 1. Load the new tuple of attribute names. + self.emit_load_const(ConstantData::Tuple { + elements: attr_names, + }); + // 2. Emit MATCH_CLASS with nargs. + emit!(self, Instruction::MatchClass(u32::try_from(nargs).unwrap())); + // 3. Duplicate the top of the stack. + emit!(self, Instruction::CopyItem { index: 1_u32 }); + // 4. Load None. + self.emit_load_const(ConstantData::None); + // 5. Compare with IS_OP 1. + emit!(self, Instruction::TestOperation { op: IsNot }); + + // At this point the TOS is a tuple of (nargs + n_attrs) attributes (or None). + pc.on_top += 1; + self.jump_to_fail_pop(pc, JumpOp::PopJumpIfFalse)?; + + // Unpack the tuple into (nargs + n_attrs) items. + let total = nargs + n_attrs; + emit!( + self, + Instruction::UnpackSequence { + size: u32::try_from(total).unwrap() + } + ); + pc.on_top += total; + pc.on_top -= 1; + + // Process each sub-pattern. + for subpattern in patterns.iter().chain(kwd_patterns.iter()) { + // Decrement the on_top counter as each sub-pattern is processed + // (on_top should be zero at the end of the algorithm as a sanity check). + pc.on_top -= 1; + if subpattern.is_wildcard() { + emit!(self, Instruction::Pop); + } + // Compile the subpattern without irrefutability checks. + self.compile_pattern_subpattern(subpattern, pc)?; + } + Ok(()) + } + + // fn compile_pattern_mapping(&mut self, p: &PatternMatchMapping, pc: &mut PatternContext) -> CompileResult<()> { + // // Ensure the pattern is a mapping pattern. + // let mapping = p; // Extract MatchMapping-specific data. + // let keys = &mapping.keys; + // let patterns = &mapping.patterns; + // let size = keys.len(); + // let n_patterns = patterns.len(); + + // if size != n_patterns { + // panic!("keys ({}) / patterns ({}) length mismatch in mapping pattern", size, n_patterns); + // // return self.compiler_error( + // // &format!("keys ({}) / patterns ({}) length mismatch in mapping pattern", size, n_patterns) + // // ); + // } + + // // A double-star target is present if `rest` is set. + // let star_target = mapping.rest; + + // // Keep the subject on top during the mapping and length checks. + // pc.on_top += 1; + // emit!(self, Instruction::MatchMapping); + // self.jump_to_fail_pop(pc, JumpOp::PopJumpIfFalse)?; + + // // If the pattern is just "{}" (empty mapping) and there's no star target, + // // we're done—pop the subject. + // if size == 0 && star_target.is_none() { + // pc.on_top -= 1; + // emit!(self, Instruction::Pop); + // return Ok(()); + // } + + // // If there are any keys, perform a length check. + // if size != 0 { + // emit!(self, Instruction::GetLen); + // self.emit_load_const(ConstantData::Integer { value: size.into() }); + // emit!(self, Instruction::CompareOperation { op: ComparisonOperator::GreaterOrEqual }); + // self.jump_to_fail_pop(pc, JumpOp::PopJumpIfFalse)?; + // } + + // // Check that the number of subpatterns is not absurd. + // if size.saturating_sub(1) > (i32::MAX as usize) { + // panic!("too many sub-patterns in mapping pattern"); + // // return self.compiler_error("too many sub-patterns in mapping pattern"); + // } + + // // Collect all keys into a set for duplicate checking. + // let mut seen = HashSet::new(); + + // // For each key, validate it and check for duplicates. + // for (i, key) in keys.iter().enumerate() { + // if let Some(key_val) = key.as_literal_expr() { + // let in_seen = seen.contains(&key_val); + // if in_seen { + // panic!("mapping pattern checks duplicate key: {:?}", key_val); + // // return self.compiler_error(format!("mapping pattern checks duplicate key: {:?}", key_val)); + // } + // seen.insert(key_val); + // } else if !key.is_attribute_expr() { + // panic!("mapping pattern keys may only match literals and attribute lookups"); + // // return self.compiler_error("mapping pattern keys may only match literals and attribute lookups"); + // } + + // // Visit the key expression. + // self.compile_expression(key)?; + // } + // // Drop the set (its resources will be freed automatically). + + // // Build a tuple of keys and emit MATCH_KEYS. + // emit!(self, Instruction::BuildTuple { size: size as u32 }); + // emit!(self, Instruction::MatchKeys); + // // Now, on top of the subject there are two new tuples: one of keys and one of values. + // pc.on_top += 2; + + // // Prepare for matching the values. + // emit!(self, Instruction::CopyItem { index: 1_u32 }); + // self.emit_load_const(ConstantData::None); + // // TODO: should be is + // emit!(self, Instruction::TestOperation::IsNot); + // self.jump_to_fail_pop(pc, JumpOp::PopJumpIfFalse)?; + + // // Unpack the tuple of values. + // emit!(self, Instruction::UnpackSequence { size: size as u32 }); + // pc.on_top += size.saturating_sub(1); + + // // Compile each subpattern in "subpattern" mode. + // for pattern in patterns { + // pc.on_top = pc.on_top.saturating_sub(1); + // self.compile_pattern_subpattern(pattern, pc)?; + // } + + // // Consume the tuple of keys and the subject. + // pc.on_top = pc.on_top.saturating_sub(2); + // if let Some(star_target) = star_target { + // // If we have a starred name, bind a dict of remaining items to it. + // // This sequence of instructions performs: + // // rest = dict(subject) + // // for key in keys: del rest[key] + // emit!(self, Instruction::BuildMap { size: 0 }); // Build an empty dict. + // emit!(self, Instruction::Swap(3)); // Rearrange stack: [empty, keys, subject] + // emit!(self, Instruction::DictUpdate { size: 2 }); // Update dict with subject. + // emit!(self, Instruction::UnpackSequence { size: size as u32 }); // Unpack keys. + // let mut remaining = size; + // while remaining > 0 { + // emit!(self, Instruction::CopyItem { index: 1 + remaining as u32 }); // Duplicate subject copy. + // emit!(self, Instruction::Swap { index: 2_u32 }); // Bring key to top. + // emit!(self, Instruction::DeleteSubscript); // Delete key from dict. + // remaining -= 1; + // } + // // Bind the dict to the starred target. + // self.pattern_helper_store_name(Some(&star_target), pc)?; + // } else { + // // No starred target: just pop the tuple of keys and the subject. + // emit!(self, Instruction::Pop); + // emit!(self, Instruction::Pop); + // } + // Ok(()) + // } + + fn compile_pattern_or( + &mut self, + p: &PatternMatchOr, + pc: &mut PatternContext, + ) -> CompileResult<()> { + // Ensure the pattern is a MatchOr. + let end = self.new_block(); // Create a new jump target label. + let size = p.patterns.len(); + assert!(size > 1, "MatchOr must have more than one alternative"); + + // Save the current pattern context. + let old_pc = pc.clone(); + // Simulate Py_INCREF on pc.stores by cloning it. + pc.stores = pc.stores.clone(); + let mut control: Option> = None; // Will hold the capture list of the first alternative. + + // Process each alternative. + for (i, alt) in p.patterns.iter().enumerate() { + // Create a fresh empty store for this alternative. + pc.stores = Vec::new(); + // An irrefutable subpattern must be last (if allowed). + pc.allow_irrefutable = (i == size - 1) && old_pc.allow_irrefutable; + // Reset failure targets and the on_top counter. + pc.fail_pop.clear(); + pc.on_top = 0; + // Emit a COPY(1) instruction before compiling the alternative. + emit!(self, Instruction::CopyItem { index: 1_u32 }); + self.compile_pattern(alt, pc)?; + + let nstores = pc.stores.len(); + if i == 0 { + // Save the captured names from the first alternative. + control = Some(pc.stores.clone()); + } else { + let control_vec = control.as_ref().unwrap(); + if nstores != control_vec.len() { + return Err(self.error(CodegenErrorType::ConflictingNameBindPattern)); + } else if nstores > 0 { + // Check that the names occur in the same order. + for icontrol in (0..nstores).rev() { + let name = &control_vec[icontrol]; + // Find the index of `name` in the current stores. + let istores = + pc.stores.iter().position(|n| n == name).ok_or_else(|| { + self.error(CodegenErrorType::ConflictingNameBindPattern) + })?; + if icontrol != istores { + // The orders differ; we must reorder. + assert!(istores < icontrol, "expected istores < icontrol"); + let rotations = istores + 1; + // Rotate pc.stores: take a slice of the first `rotations` items... + let rotated = pc.stores[0..rotations].to_vec(); + // Remove those elements. + for _ in 0..rotations { + pc.stores.remove(0); + } + // Insert the rotated slice at the appropriate index. + let insert_pos = icontrol - istores; + for (j, elem) in rotated.into_iter().enumerate() { + pc.stores.insert(insert_pos + j, elem); + } + // Also perform the same rotation on the evaluation stack. + for _ in 0..(istores + 1) { + self.pattern_helper_rotate(icontrol + 1)?; + } + } + } + } + } + // Emit a jump to the common end label and reset any failure jump targets. + emit!(self, Instruction::Jump { target: end }); + self.emit_and_reset_fail_pop(pc)?; + } + + // Restore the original pattern context. + *pc = old_pc.clone(); + // Simulate Py_INCREF on pc.stores. + pc.stores = pc.stores.clone(); + // In C, old_pc.fail_pop is set to NULL to avoid freeing it later. + // In Rust, old_pc is a local clone, so we need not worry about that. + + // No alternative matched: pop the subject and fail. + emit!(self, Instruction::Pop); + self.jump_to_fail_pop(pc, JumpOp::Jump)?; + + // Use the label "end". + self.switch_to_block(end); + + // Adjust the final captures. + let n_stores = control.as_ref().unwrap().len(); + let n_rots = n_stores + 1 + pc.on_top + pc.stores.len(); + for i in 0..n_stores { + // Rotate the capture to its proper place. + self.pattern_helper_rotate(n_rots)?; + let name = &control.as_ref().unwrap()[i]; + // Check for duplicate binding. + if pc.stores.contains(name) { + return Err(self.error(CodegenErrorType::DuplicateStore(name.to_string()))); + } + pc.stores.push(name.clone()); + } + + // Old context and control will be dropped automatically. + // Finally, pop the copy of the subject. + emit!(self, Instruction::Pop); + Ok(()) + } + + fn compile_pattern_sequence( + &mut self, + p: &PatternMatchSequence, + pc: &mut PatternContext, + ) -> CompileResult<()> { + // Ensure the pattern is a MatchSequence. + let patterns = &p.patterns; // a slice of Pattern + let size = patterns.len(); + let mut star: Option = None; + let mut only_wildcard = true; + let mut star_wildcard = false; + + // Find a starred pattern, if it exists. There may be at most one. + for (i, pattern) in patterns.iter().enumerate() { + if pattern.is_match_star() { + if star.is_some() { + // TODO: Fix error msg + return Err(self.error(CodegenErrorType::MultipleStarArgs)); + } + // star wildcard check + star_wildcard = pattern + .as_match_star() + .map(|m| m.name.is_none()) + .unwrap_or(false); + only_wildcard &= star_wildcard; + star = Some(i); + continue; + } + // wildcard check + only_wildcard &= pattern + .as_match_as() + .map(|m| m.name.is_none()) + .unwrap_or(false); + } + + // Keep the subject on top during the sequence and length checks. + pc.on_top += 1; + emit!(self, Instruction::MatchSequence); + self.jump_to_fail_pop(pc, JumpOp::PopJumpIfFalse)?; + + if star.is_none() { + // No star: len(subject) == size + emit!(self, Instruction::GetLen); + self.emit_load_const(ConstantData::Integer { value: size.into() }); + emit!( + self, + Instruction::CompareOperation { + op: ComparisonOperator::Equal + } + ); + self.jump_to_fail_pop(pc, JumpOp::PopJumpIfFalse)?; + } else if size > 1 { + // Star exists: len(subject) >= size - 1 + emit!(self, Instruction::GetLen); + self.emit_load_const(ConstantData::Integer { + value: (size - 1).into(), + }); + emit!( + self, + Instruction::CompareOperation { + op: ComparisonOperator::GreaterOrEqual + } + ); + self.jump_to_fail_pop(pc, JumpOp::PopJumpIfFalse)?; + } + + // Whatever comes next should consume the subject. + pc.on_top -= 1; + if only_wildcard { + // Patterns like: [] / [_] / [_, _] / [*_] / [_, *_] / [_, _, *_] / etc. + emit!(self, Instruction::Pop); + } else if star_wildcard { + self.pattern_helper_sequence_subscr(patterns, star.unwrap(), pc)?; + } else { + self.pattern_helper_sequence_unpack(patterns, star, pc)?; + } + Ok(()) + } + + fn compile_pattern_value( + &mut self, + p: &PatternMatchValue, + pc: &mut PatternContext, + ) -> CompileResult<()> { + // TODO: ensure literal or attribute lookup + self.compile_expression(&p.value)?; + emit!( + self, + Instruction::CompareOperation { + op: bytecode::ComparisonOperator::Equal + } + ); + // emit!(self, Instruction::ToBool); + self.jump_to_fail_pop(pc, JumpOp::PopJumpIfFalse)?; + Ok(()) + } + + fn compile_pattern_singleton( + &mut self, + p: &PatternMatchSingleton, + pc: &mut PatternContext, + ) -> CompileResult<()> { + // Load the singleton constant value. + self.emit_load_const(match p.value { + Singleton::None => ConstantData::None, + Singleton::False => ConstantData::Boolean { value: false }, + Singleton::True => ConstantData::Boolean { value: true }, + }); + // Compare using the "Is" operator. + emit!( + self, + Instruction::CompareOperation { + op: bytecode::ComparisonOperator::Equal + } + ); + // Jump to the failure label if the comparison is false. + self.jump_to_fail_pop(pc, JumpOp::PopJumpIfFalse)?; + Ok(()) + } + + fn compile_pattern( + &mut self, + pattern_type: &Pattern, + pattern_context: &mut PatternContext, + ) -> CompileResult<()> { + match &pattern_type { + Pattern::MatchValue(pattern_type) => { + self.compile_pattern_value(pattern_type, pattern_context) + } + Pattern::MatchSingleton(pattern_type) => { + self.compile_pattern_singleton(pattern_type, pattern_context) + } + Pattern::MatchSequence(pattern_type) => { + self.compile_pattern_sequence(pattern_type, pattern_context) + } + // Pattern::MatchMapping(pattern_type) => self.compile_pattern_mapping(pattern_type, pattern_context), + Pattern::MatchClass(pattern_type) => { + self.compile_pattern_class(pattern_type, pattern_context) + } + Pattern::MatchStar(pattern_type) => { + self.compile_pattern_star(pattern_type, pattern_context) + } + Pattern::MatchAs(pattern_type) => { + self.compile_pattern_as(pattern_type, pattern_context) + } + Pattern::MatchOr(pattern_type) => { + self.compile_pattern_or(pattern_type, pattern_context) + } + _ => { + // The eprintln gives context as to which pattern type is not implemented. + eprintln!("not implemented pattern type: {pattern_type:?}"); + Err(self.error(CodegenErrorType::NotImplementedYet)) + } + } + } + + fn compile_match_inner( + &mut self, + subject: &Expr, + cases: &[MatchCase], + pattern_context: &mut PatternContext, + ) -> CompileResult<()> { + self.compile_expression(subject)?; + let end = self.new_block(); + + let num_cases = cases.len(); + assert!(num_cases > 0); + let has_default = cases.iter().last().unwrap().pattern.is_match_star() && num_cases > 1; + + let case_count = num_cases - if has_default { 1 } else { 0 }; + for (i, m) in cases.iter().enumerate().take(case_count) { + // Only copy the subject if not on the last case + if i != case_count - 1 { + emit!(self, Instruction::CopyItem { index: 1_u32 }); + } + + pattern_context.stores = Vec::with_capacity(1); + pattern_context.allow_irrefutable = m.guard.is_some() || i == case_count - 1; + pattern_context.fail_pop.clear(); + pattern_context.on_top = 0; + + self.compile_pattern(&m.pattern, pattern_context)?; + assert_eq!(pattern_context.on_top, 0); + + for name in &pattern_context.stores { + self.compile_name(name, NameUsage::Store)?; + } + + if let Some(ref _guard) = m.guard { + self.ensure_fail_pop(pattern_context, 0)?; + // TODO: Fix compile jump if call + return Err(self.error(CodegenErrorType::NotImplementedYet)); + // Jump if the guard fails. We assume that patter_context.fail_pop[0] is the jump target. + // self.compile_jump_if(&m.pattern, &guard, pattern_context.fail_pop[0])?; + } + + if i != case_count - 1 { + emit!(self, Instruction::Pop); + } + + self.compile_statements(&m.body)?; + emit!(self, Instruction::Jump { target: end }); + self.emit_and_reset_fail_pop(pattern_context)?; + } + + if has_default { + let m = &cases[num_cases - 1]; + if num_cases == 1 { + emit!(self, Instruction::Pop); + } else { + emit!(self, Instruction::Nop); + } + if let Some(ref _guard) = m.guard { + // TODO: Fix compile jump if call + return Err(self.error(CodegenErrorType::NotImplementedYet)); + } + self.compile_statements(&m.body)?; + } + self.switch_to_block(end); + Ok(()) + } + + fn compile_match(&mut self, subject: &Expr, cases: &[MatchCase]) -> CompileResult<()> { + let mut pattern_context = PatternContext::new(); + self.compile_match_inner(subject, cases, &mut pattern_context)?; + Ok(()) + } + + fn compile_chained_comparison( + &mut self, + left: &Expr, + ops: &[CmpOp], + exprs: &[Expr], + ) -> CompileResult<()> { + assert!(!ops.is_empty()); + assert_eq!(exprs.len(), ops.len()); + let (last_op, mid_ops) = ops.split_last().unwrap(); + let (last_val, mid_exprs) = exprs.split_last().unwrap(); + + use bytecode::ComparisonOperator::*; + use bytecode::TestOperator::*; + let compile_cmpop = |c: &mut Self, op: &CmpOp| match op { + CmpOp::Eq => emit!(c, Instruction::CompareOperation { op: Equal }), + CmpOp::NotEq => emit!(c, Instruction::CompareOperation { op: NotEqual }), + CmpOp::Lt => emit!(c, Instruction::CompareOperation { op: Less }), + CmpOp::LtE => emit!(c, Instruction::CompareOperation { op: LessOrEqual }), + CmpOp::Gt => emit!(c, Instruction::CompareOperation { op: Greater }), + CmpOp::GtE => { + emit!(c, Instruction::CompareOperation { op: GreaterOrEqual }) + } + CmpOp::In => emit!(c, Instruction::TestOperation { op: In }), + CmpOp::NotIn => emit!(c, Instruction::TestOperation { op: NotIn }), + CmpOp::Is => emit!(c, Instruction::TestOperation { op: Is }), + CmpOp::IsNot => emit!(c, Instruction::TestOperation { op: IsNot }), + }; + + // a == b == c == d + // compile into (pseudo code): + // result = a == b + // if result: + // result = b == c + // if result: + // result = c == d + + // initialize lhs outside of loop + self.compile_expression(left)?; + + let end_blocks = if mid_exprs.is_empty() { + None + } else { + let break_block = self.new_block(); + let after_block = self.new_block(); + Some((break_block, after_block)) + }; + + // for all comparisons except the last (as the last one doesn't need a conditional jump) + for (op, val) in mid_ops.iter().zip(mid_exprs) { + self.compile_expression(val)?; + // store rhs for the next comparison in chain + emit!(self, Instruction::Duplicate); + emit!(self, Instruction::Rotate3); + + compile_cmpop(self, op); + + // if comparison result is false, we break with this value; if true, try the next one. + if let Some((break_block, _)) = end_blocks { + emit!( + self, + Instruction::JumpIfFalseOrPop { + target: break_block, + } + ); + } + } + + // handle the last comparison + self.compile_expression(last_val)?; + compile_cmpop(self, last_op); + + if let Some((break_block, after_block)) = end_blocks { + emit!( + self, + Instruction::Jump { + target: after_block, + } + ); + + // early exit left us with stack: `rhs, comparison_result`. We need to clean up rhs. + self.switch_to_block(break_block); + emit!(self, Instruction::Rotate2); + emit!(self, Instruction::Pop); + + self.switch_to_block(after_block); + } + + Ok(()) + } + + fn compile_annotation(&mut self, annotation: &Expr) -> CompileResult<()> { + if self.future_annotations { + self.emit_load_const(ConstantData::Str { + value: unparse_expr(annotation, &self.source_code) + .to_string() + .into(), + }); + } else { + self.compile_expression(annotation)?; + } + Ok(()) + } + + fn compile_annotated_assign( + &mut self, + target: &Expr, + annotation: &Expr, + value: Option<&Expr>, + ) -> CompileResult<()> { + if let Some(value) = value { + self.compile_expression(value)?; + self.compile_store(target)?; + } + + // Annotations are only evaluated in a module or class. + if self.ctx.in_func() { + return Ok(()); + } + + // Compile annotation: + self.compile_annotation(annotation)?; + + if let Expr::Name(ExprName { id, .. }) = &target { + // Store as dict entry in __annotations__ dict: + let annotations = self.name("__annotations__"); emit!(self, Instruction::LoadNameAny(annotations)); self.emit_load_const(ConstantData::Str { - value: self.mangle(id.as_str()).into_owned(), + value: self.mangle(id.as_str()).into_owned().into(), }); emit!(self, Instruction::StoreSubscript); } else { @@ -1901,29 +2906,26 @@ impl Compiler { Ok(()) } - fn compile_store(&mut self, target: &located_ast::Expr) -> CompileResult<()> { + fn compile_store(&mut self, target: &Expr) -> CompileResult<()> { match &target { - located_ast::Expr::Name(located_ast::ExprName { id, .. }) => { - self.store_name(id.as_str())? - } - located_ast::Expr::Subscript(located_ast::ExprSubscript { value, slice, .. }) => { + Expr::Name(ExprName { id, .. }) => self.store_name(id.as_str())?, + Expr::Subscript(ExprSubscript { value, slice, .. }) => { self.compile_expression(value)?; self.compile_expression(slice)?; emit!(self, Instruction::StoreSubscript); } - located_ast::Expr::Attribute(located_ast::ExprAttribute { value, attr, .. }) => { + Expr::Attribute(ExprAttribute { value, attr, .. }) => { self.check_forbidden_name(attr.as_str(), NameUsage::Store)?; self.compile_expression(value)?; let idx = self.name(attr.as_str()); emit!(self, Instruction::StoreAttr { idx }); } - located_ast::Expr::List(located_ast::ExprList { elts, .. }) - | located_ast::Expr::Tuple(located_ast::ExprTuple { elts, .. }) => { + Expr::List(ExprList { elts, .. }) | Expr::Tuple(ExprTuple { elts, .. }) => { let mut seen_star = false; // Scan for star args: for (i, element) in elts.iter().enumerate() { - if let located_ast::Expr::Starred(_) = &element { + if let Expr::Starred(_) = &element { if seen_star { return Err(self.error(CodegenErrorType::MultipleStarArgs)); } else { @@ -1932,9 +2934,9 @@ impl Compiler { let after = elts.len() - i - 1; let (before, after) = (|| Some((before.to_u8()?, after.to_u8()?)))() .ok_or_else(|| { - self.error_loc( + self.error_ranged( CodegenErrorType::TooManyStarUnpack, - target.location(), + target.range(), ) })?; let args = bytecode::UnpackExArgs { before, after }; @@ -1953,9 +2955,7 @@ impl Compiler { } for element in elts { - if let located_ast::Expr::Starred(located_ast::ExprStarred { value, .. }) = - &element - { + if let Expr::Starred(ExprStarred { value, .. }) = &element { self.compile_store(value)?; } else { self.compile_store(element)?; @@ -1964,7 +2964,7 @@ impl Compiler { } _ => { return Err(self.error(match target { - located_ast::Expr::Starred(_) => CodegenErrorType::SyntaxError( + Expr::Starred(_) => CodegenErrorType::SyntaxError( "starred assignment target must be in a list or tuple".to_owned(), ), _ => CodegenErrorType::Assign(target.python_name()), @@ -1977,9 +2977,9 @@ impl Compiler { fn compile_augassign( &mut self, - target: &located_ast::Expr, - op: &located_ast::Operator, - value: &located_ast::Expr, + target: &Expr, + op: &Operator, + value: &Expr, ) -> CompileResult<()> { enum AugAssignKind<'a> { Name { id: &'a str }, @@ -1988,19 +2988,19 @@ impl Compiler { } let kind = match &target { - located_ast::Expr::Name(located_ast::ExprName { id, .. }) => { + Expr::Name(ExprName { id, .. }) => { let id = id.as_str(); self.compile_name(id, NameUsage::Load)?; AugAssignKind::Name { id } } - located_ast::Expr::Subscript(located_ast::ExprSubscript { value, slice, .. }) => { + Expr::Subscript(ExprSubscript { value, slice, .. }) => { self.compile_expression(value)?; self.compile_expression(slice)?; emit!(self, Instruction::Duplicate2); emit!(self, Instruction::Subscript); AugAssignKind::Subscript } - located_ast::Expr::Attribute(located_ast::ExprAttribute { value, attr, .. }) => { + Expr::Attribute(ExprAttribute { value, attr, .. }) => { let attr = attr.as_str(); self.check_forbidden_name(attr, NameUsage::Store)?; self.compile_expression(value)?; @@ -2037,21 +3037,21 @@ impl Compiler { Ok(()) } - fn compile_op(&mut self, op: &located_ast::Operator, inplace: bool) { + fn compile_op(&mut self, op: &Operator, inplace: bool) { let op = match op { - located_ast::Operator::Add => bytecode::BinaryOperator::Add, - located_ast::Operator::Sub => bytecode::BinaryOperator::Subtract, - located_ast::Operator::Mult => bytecode::BinaryOperator::Multiply, - located_ast::Operator::MatMult => bytecode::BinaryOperator::MatrixMultiply, - located_ast::Operator::Div => bytecode::BinaryOperator::Divide, - located_ast::Operator::FloorDiv => bytecode::BinaryOperator::FloorDivide, - located_ast::Operator::Mod => bytecode::BinaryOperator::Modulo, - located_ast::Operator::Pow => bytecode::BinaryOperator::Power, - located_ast::Operator::LShift => bytecode::BinaryOperator::Lshift, - located_ast::Operator::RShift => bytecode::BinaryOperator::Rshift, - located_ast::Operator::BitOr => bytecode::BinaryOperator::Or, - located_ast::Operator::BitXor => bytecode::BinaryOperator::Xor, - located_ast::Operator::BitAnd => bytecode::BinaryOperator::And, + Operator::Add => bytecode::BinaryOperator::Add, + Operator::Sub => bytecode::BinaryOperator::Subtract, + Operator::Mult => bytecode::BinaryOperator::Multiply, + Operator::MatMult => bytecode::BinaryOperator::MatrixMultiply, + Operator::Div => bytecode::BinaryOperator::Divide, + Operator::FloorDiv => bytecode::BinaryOperator::FloorDivide, + Operator::Mod => bytecode::BinaryOperator::Modulo, + Operator::Pow => bytecode::BinaryOperator::Power, + Operator::LShift => bytecode::BinaryOperator::Lshift, + Operator::RShift => bytecode::BinaryOperator::Rshift, + Operator::BitOr => bytecode::BinaryOperator::Or, + Operator::BitXor => bytecode::BinaryOperator::Xor, + Operator::BitAnd => bytecode::BinaryOperator::And, }; if inplace { emit!(self, Instruction::BinaryOperationInplace { op }) @@ -2070,15 +3070,15 @@ impl Compiler { /// (indicated by the condition parameter). fn compile_jump_if( &mut self, - expression: &located_ast::Expr, + expression: &Expr, condition: bool, target_block: ir::BlockIdx, ) -> CompileResult<()> { // Compile expression for test, and jump to label if false match &expression { - located_ast::Expr::BoolOp(located_ast::ExprBoolOp { op, values, .. }) => { + Expr::BoolOp(ExprBoolOp { op, values, .. }) => { match op { - located_ast::BoolOp::And => { + BoolOp::And => { if condition { // If all values are true. let end_block = self.new_block(); @@ -2099,7 +3099,7 @@ impl Compiler { } } } - located_ast::BoolOp::Or => { + BoolOp::Or => { if condition { // If any of the values is true. for value in values { @@ -2122,8 +3122,8 @@ impl Compiler { } } } - located_ast::Expr::UnaryOp(located_ast::ExprUnaryOp { - op: located_ast::UnaryOp::Not, + Expr::UnaryOp(ExprUnaryOp { + op: UnaryOp::Not, operand, .. }) => { @@ -2154,11 +3154,7 @@ impl Compiler { /// Compile a boolean operation as an expression. /// This means, that the last value remains on the stack. - fn compile_bool_op( - &mut self, - op: &located_ast::BoolOp, - values: &[located_ast::Expr], - ) -> CompileResult<()> { + fn compile_bool_op(&mut self, op: &BoolOp, values: &[Expr]) -> CompileResult<()> { let after_block = self.new_block(); let (last_value, values) = values.split_last().unwrap(); @@ -2166,7 +3162,7 @@ impl Compiler { self.compile_expression(value)?; match op { - located_ast::BoolOp::And => { + BoolOp::And => { emit!( self, Instruction::JumpIfFalseOrPop { @@ -2174,7 +3170,7 @@ impl Compiler { } ); } - located_ast::BoolOp::Or => { + BoolOp::Or => { emit!( self, Instruction::JumpIfTrueOrPop { @@ -2191,44 +3187,36 @@ impl Compiler { Ok(()) } - fn compile_dict( - &mut self, - keys: &[Option], - values: &[located_ast::Expr], - ) -> CompileResult<()> { + fn compile_dict(&mut self, items: &[DictItem]) -> CompileResult<()> { + // FIXME: correct order to build map, etc d = {**a, 'key': 2} should override + // 'key' in dict a let mut size = 0; - let (packed, unpacked): (Vec<_>, Vec<_>) = keys - .iter() - .zip(values.iter()) - .partition(|(k, _)| k.is_some()); - for (key, value) in packed { - self.compile_expression(key.as_ref().unwrap())?; - self.compile_expression(value)?; + let (packed, unpacked): (Vec<_>, Vec<_>) = items.iter().partition(|x| x.key.is_some()); + for item in packed { + self.compile_expression(item.key.as_ref().unwrap())?; + self.compile_expression(&item.value)?; size += 1; } emit!(self, Instruction::BuildMap { size }); - for (_, value) in unpacked { - self.compile_expression(value)?; + for item in unpacked { + self.compile_expression(&item.value)?; emit!(self, Instruction::DictUpdate); } Ok(()) } - fn compile_expression(&mut self, expression: &located_ast::Expr) -> CompileResult<()> { - use located_ast::*; + fn compile_expression(&mut self, expression: &Expr) -> CompileResult<()> { + use ruff_python_ast::*; trace!("Compiling {:?}", expression); - let location = expression.location(); - self.set_source_location(location); + let range = expression.range(); + self.set_source_range(range); match &expression { Expr::Call(ExprCall { - func, - args, - keywords, - .. - }) => self.compile_call(func, args, keywords)?, + func, arguments, .. + }) => self.compile_call(func, arguments)?, Expr::BoolOp(ExprBoolOp { op, values, .. }) => self.compile_bool_op(op, values)?, Expr::BinOp(ExprBinOp { left, op, right, .. @@ -2269,13 +3257,13 @@ impl Compiler { }) => { self.compile_chained_comparison(left, ops, comparators)?; } - Expr::Constant(ExprConstant { value, .. }) => { - self.emit_load_const(compile_constant(value)); - } + // Expr::Constant(ExprConstant { value, .. }) => { + // self.emit_load_const(compile_constant(value)); + // } Expr::List(ExprList { elts, .. }) => { let (size, unpack) = self.gather_elements(0, elts)?; if unpack { - emit!(self, Instruction::BuildListUnpack { size }); + emit!(self, Instruction::BuildListFromTuples { size }); } else { emit!(self, Instruction::BuildList { size }); } @@ -2283,7 +3271,9 @@ impl Compiler { Expr::Tuple(ExprTuple { elts, .. }) => { let (size, unpack) = self.gather_elements(0, elts)?; if unpack { - emit!(self, Instruction::BuildTupleUnpack { size }); + if size > 1 { + emit!(self, Instruction::BuildTupleFromTuples { size }); + } } else { emit!(self, Instruction::BuildTuple { size }); } @@ -2291,18 +3281,18 @@ impl Compiler { Expr::Set(ExprSet { elts, .. }) => { let (size, unpack) = self.gather_elements(0, elts)?; if unpack { - emit!(self, Instruction::BuildSetUnpack { size }); + emit!(self, Instruction::BuildSetFromTuples { size }); } else { emit!(self, Instruction::BuildSet { size }); } } - Expr::Dict(ExprDict { keys, values, .. }) => { - self.compile_dict(keys, values)?; + Expr::Dict(ExprDict { items, .. }) => { + self.compile_dict(items)?; } Expr::Slice(ExprSlice { lower, upper, step, .. }) => { - let mut compile_bound = |bound: Option<&located_ast::Expr>| match bound { + let mut compile_bound = |bound: Option<&Expr>| match bound { Some(exp) => self.compile_expression(exp), None => { self.emit_load_const(ConstantData::None); @@ -2353,47 +3343,15 @@ impl Compiler { self.emit_load_const(ConstantData::None); emit!(self, Instruction::YieldFrom); } - Expr::JoinedStr(ExprJoinedStr { values, .. }) => { - if let Some(value) = try_get_constant_string(values) { - self.emit_load_const(ConstantData::Str { value }) - } else { - for value in values { - self.compile_expression(value)?; - } - emit!( - self, - Instruction::BuildString { - size: values.len().to_u32(), - } - ) - } - } - Expr::FormattedValue(ExprFormattedValue { - value, - conversion, - format_spec, - .. + Expr::Name(ExprName { id, .. }) => self.load_name(id.as_str())?, + Expr::Lambda(ExprLambda { + parameters, body, .. }) => { - match format_spec { - Some(spec) => self.compile_expression(spec)?, - None => self.emit_load_const(ConstantData::Str { - value: String::new(), - }), - }; - self.compile_expression(value)?; - emit!( - self, - Instruction::FormatValue { - conversion: *conversion, - }, - ); - } - Expr::Name(located_ast::ExprName { id, .. }) => self.load_name(id.as_str())?, - Expr::Lambda(located_ast::ExprLambda { args, body, .. }) => { let prev_ctx = self.ctx; let name = "".to_owned(); - let mut func_flags = self.enter_function(&name, args)?; + let mut func_flags = self + .enter_function(&name, parameters.as_deref().unwrap_or(&Default::default()))?; self.ctx = CompileContext { loop_data: Option::None, @@ -2414,13 +3372,13 @@ impl Compiler { self.emit_load_const(ConstantData::Code { code: Box::new(code), }); - self.emit_load_const(ConstantData::Str { value: name }); + self.emit_load_const(ConstantData::Str { value: name.into() }); // Turn code object into function object: emit!(self, Instruction::MakeFunction(func_flags)); self.ctx = prev_ctx; } - Expr::ListComp(located_ast::ExprListComp { + Expr::ListComp(ExprListComp { elt, generators, .. }) => { self.compile_comprehension( @@ -2443,7 +3401,7 @@ impl Compiler { Self::contains_await(elt), )?; } - Expr::SetComp(located_ast::ExprSetComp { + Expr::SetComp(ExprSetComp { elt, generators, .. }) => { self.compile_comprehension( @@ -2466,7 +3424,7 @@ impl Compiler { Self::contains_await(elt), )?; } - Expr::DictComp(located_ast::ExprDictComp { + Expr::DictComp(ExprDictComp { key, value, generators, @@ -2496,7 +3454,7 @@ impl Compiler { Self::contains_await(key) || Self::contains_await(value), )?; } - Expr::GeneratorExp(located_ast::ExprGeneratorExp { + Expr::Generator(ExprGenerator { elt, generators, .. }) => { self.compile_comprehension( @@ -2518,7 +3476,7 @@ impl Compiler { Expr::Starred(_) => { return Err(self.error(CodegenErrorType::InvalidStarExpr)); } - Expr::IfExp(located_ast::ExprIfExp { + Expr::If(ExprIf { test, body, orelse, .. }) => { let else_block = self.new_block(); @@ -2542,7 +3500,7 @@ impl Compiler { self.switch_to_block(after_block); } - Expr::NamedExpr(located_ast::ExprNamedExpr { + Expr::Named(ExprNamed { target, value, range: _, @@ -2551,13 +3509,66 @@ impl Compiler { emit!(self, Instruction::Duplicate); self.compile_store(target)?; } + Expr::FString(fstring) => { + self.compile_expr_fstring(fstring)?; + } + Expr::StringLiteral(string) => { + let value = string.value.to_str(); + if value.contains(char::REPLACEMENT_CHARACTER) { + let value = string + .value + .iter() + .map(|lit| { + let source = self.source_code.get_range(lit.range); + crate::string_parser::parse_string_literal(source, lit.flags.into()) + }) + .collect(); + // might have a surrogate literal; should reparse to be sure + self.emit_load_const(ConstantData::Str { value }); + } else { + self.emit_load_const(ConstantData::Str { + value: value.into(), + }); + } + } + Expr::BytesLiteral(bytes) => { + let iter = bytes.value.iter().flat_map(|x| x.iter().copied()); + let v: Vec = iter.collect(); + self.emit_load_const(ConstantData::Bytes { value: v }); + } + Expr::NumberLiteral(number) => match &number.value { + Number::Int(int) => { + let value = ruff_int_to_bigint(int).map_err(|e| self.error(e))?; + self.emit_load_const(ConstantData::Integer { value }); + } + Number::Float(float) => { + self.emit_load_const(ConstantData::Float { value: *float }); + } + Number::Complex { real, imag } => { + self.emit_load_const(ConstantData::Complex { + value: Complex::new(*real, *imag), + }); + } + }, + Expr::BooleanLiteral(b) => { + self.emit_load_const(ConstantData::Boolean { value: b.value }); + } + Expr::NoneLiteral(_) => { + self.emit_load_const(ConstantData::None); + } + Expr::EllipsisLiteral(_) => { + self.emit_load_const(ConstantData::Ellipsis); + } + Expr::IpyEscapeCommand(_) => { + panic!("unexpected ipy escape command"); + } } Ok(()) } - fn compile_keywords(&mut self, keywords: &[located_ast::Keyword]) -> CompileResult<()> { + fn compile_keywords(&mut self, keywords: &[Keyword]) -> CompileResult<()> { let mut size = 0; - let groupby = keywords.iter().group_by(|e| e.arg.is_none()); + let groupby = keywords.iter().chunk_by(|e| e.arg.is_none()); for (is_unpacking, sub_keywords) in &groupby { if is_unpacking { for keyword in sub_keywords { @@ -2569,7 +3580,7 @@ impl Compiler { for keyword in sub_keywords { if let Some(name) = &keyword.arg { self.emit_load_const(ConstantData::Str { - value: name.to_string(), + value: name.as_str().into(), }); self.compile_expression(&keyword.value)?; sub_size += 1; @@ -2585,26 +3596,17 @@ impl Compiler { Ok(()) } - fn compile_call( - &mut self, - func: &located_ast::Expr, - args: &[located_ast::Expr], - keywords: &[located_ast::Keyword], - ) -> CompileResult<()> { - let method = - if let located_ast::Expr::Attribute(located_ast::ExprAttribute { - value, attr, .. - }) = &func - { - self.compile_expression(value)?; - let idx = self.name(attr.as_str()); - emit!(self, Instruction::LoadMethod { idx }); - true - } else { - self.compile_expression(func)?; - false - }; - let call = self.compile_call_inner(0, args, keywords)?; + fn compile_call(&mut self, func: &Expr, args: &Arguments) -> CompileResult<()> { + let method = if let Expr::Attribute(ExprAttribute { value, attr, .. }) = &func { + self.compile_expression(value)?; + let idx = self.name(attr.as_str()); + emit!(self, Instruction::LoadMethod { idx }); + true + } else { + self.compile_expression(func)?; + false + }; + let call = self.compile_call_inner(0, args)?; if method { self.compile_method_call(call) } else { @@ -2635,16 +3637,15 @@ impl Compiler { fn compile_call_inner( &mut self, additional_positional: u32, - args: &[located_ast::Expr], - keywords: &[located_ast::Keyword], + arguments: &Arguments, ) -> CompileResult { - let count = (args.len() + keywords.len()).to_u32() + additional_positional; + let count = u32::try_from(arguments.len()).unwrap() + additional_positional; // Normal arguments: - let (size, unpack) = self.gather_elements(additional_positional, args)?; - let has_double_star = keywords.iter().any(|k| k.arg.is_none()); + let (size, unpack) = self.gather_elements(additional_positional, &arguments.args)?; + let has_double_star = arguments.keywords.iter().any(|k| k.arg.is_none()); - for keyword in keywords { + for keyword in &arguments.keywords { if let Some(name) = &keyword.arg { self.check_forbidden_name(name.as_str(), NameUsage::Store)?; } @@ -2653,23 +3654,23 @@ impl Compiler { let call = if unpack || has_double_star { // Create a tuple with positional args: if unpack { - emit!(self, Instruction::BuildTupleUnpack { size }); + emit!(self, Instruction::BuildTupleFromTuples { size }); } else { emit!(self, Instruction::BuildTuple { size }); } // Create an optional map with kw-args: - let has_kwargs = !keywords.is_empty(); + let has_kwargs = !arguments.keywords.is_empty(); if has_kwargs { - self.compile_keywords(keywords)?; + self.compile_keywords(&arguments.keywords)?; } CallType::Ex { has_kwargs } - } else if !keywords.is_empty() { + } else if !arguments.keywords.is_empty() { let mut kwarg_names = vec![]; - for keyword in keywords { + for keyword in &arguments.keywords { if let Some(name) = &keyword.arg { kwarg_names.push(ConstantData::Str { - value: name.to_string(), + value: name.as_str().into(), }); } else { // This means **kwargs! @@ -2691,48 +3692,37 @@ impl Compiler { // Given a vector of expr / star expr generate code which gives either // a list of expressions on the stack, or a list of tuples. - fn gather_elements( - &mut self, - before: u32, - elements: &[located_ast::Expr], - ) -> CompileResult<(u32, bool)> { + fn gather_elements(&mut self, before: u32, elements: &[Expr]) -> CompileResult<(u32, bool)> { // First determine if we have starred elements: - let has_stars = elements - .iter() - .any(|e| matches!(e, located_ast::Expr::Starred(_))); + let has_stars = elements.iter().any(|e| matches!(e, Expr::Starred(_))); let size = if has_stars { let mut size = 0; + let mut iter = elements.iter().peekable(); + let mut run_size = before; - if before > 0 { - emit!(self, Instruction::BuildTuple { size: before }); - size += 1; - } + loop { + if iter.peek().is_none_or(|e| matches!(e, Expr::Starred(_))) { + emit!(self, Instruction::BuildTuple { size: run_size }); + run_size = 0; + size += 1; + } - let groups = elements - .iter() - .map(|element| { - if let located_ast::Expr::Starred(located_ast::ExprStarred { value, .. }) = - &element - { - (true, value.as_ref()) - } else { - (false, element) + match iter.next() { + Some(Expr::Starred(ExprStarred { value, .. })) => { + self.compile_expression(value)?; + // We need to collect each unpacked element into a + // tuple, since any side-effects during the conversion + // should be made visible before evaluating remaining + // expressions. + emit!(self, Instruction::BuildTupleFromIter); + size += 1; } - }) - .group_by(|(starred, _)| *starred); - - for (starred, run) in &groups { - let mut run_size = 0; - for (_, value) in run { - self.compile_expression(value)?; - run_size += 1 - } - if starred { - size += run_size - } else { - emit!(self, Instruction::BuildTuple { size: run_size }); - size += 1 + Some(element) => { + self.compile_expression(element)?; + run_size += 1; + } + None => break, } } @@ -2747,7 +3737,7 @@ impl Compiler { Ok((size, has_stars)) } - fn compile_comprehension_element(&mut self, element: &located_ast::Expr) -> CompileResult<()> { + fn compile_comprehension_element(&mut self, element: &Expr) -> CompileResult<()> { self.compile_expression(element).map_err(|e| { if let CodegenErrorType::InvalidStarExpr = e.error { self.error(CodegenErrorType::SyntaxError( @@ -2763,7 +3753,7 @@ impl Compiler { &mut self, name: &str, init_collection: Option, - generators: &[located_ast::Comprehension], + generators: &[Comprehension], compile_element: &dyn Fn(&mut Self) -> CompileResult<()>, comprehension_type: ComprehensionType, element_contains_await: bool, @@ -2913,9 +3903,7 @@ impl Compiler { }); // List comprehension function name: - self.emit_load_const(ConstantData::Str { - value: name.to_owned(), - }); + self.emit_load_const(ConstantData::Str { value: name.into() }); // Turn code object into function object: emit!(self, Instruction::MakeFunction(func_flags)); @@ -2944,13 +3932,11 @@ impl Compiler { Ok(()) } - fn compile_future_features( - &mut self, - features: &[located_ast::Alias], - ) -> Result<(), CodegenError> { - if self.done_with_future_stmts { + fn compile_future_features(&mut self, features: &[Alias]) -> Result<(), CodegenError> { + if let DoneWithFuture::Yes = self.done_with_future_stmts { return Err(self.error(CodegenErrorType::InvalidFuturePlacement)); } + self.done_with_future_stmts = DoneWithFuture::DoneWithDoc; for feature in features { match feature.name.as_str() { // Python 3 features; we've already implemented them by default @@ -2958,7 +3944,9 @@ impl Compiler { | "with_statement" | "print_function" | "unicode_literals" | "generator_stop" => {} "annotations" => self.future_annotations = true, other => { - return Err(self.error(CodegenErrorType::InvalidFutureFeature(other.to_owned()))) + return Err( + self.error(CodegenErrorType::InvalidFutureFeature(other.to_owned())) + ); } } } @@ -2967,13 +3955,15 @@ impl Compiler { // Low level helper functions: fn _emit(&mut self, instr: Instruction, arg: OpArg, target: ir::BlockIdx) { - let location = self.current_source_location; + let range = self.current_source_range; + let location = self.source_code.source_location(range.start()); // TODO: insert source filename self.current_block().instructions.push(ir::InstructionInfo { instr, arg, target, location, + // range, }); } @@ -3036,28 +4026,29 @@ impl Compiler { fn switch_to_block(&mut self, block: ir::BlockIdx) { let code = self.current_code_info(); let prev = code.current_block; + assert_ne!(prev, block, "recursive switching {prev:?} -> {block:?}"); assert_eq!( code.blocks[block].next, ir::BlockIdx::NULL, - "switching to completed block" + "switching {prev:?} -> {block:?} to completed block" ); let prev_block = &mut code.blocks[prev.0 as usize]; assert_eq!( prev_block.next.0, u32::MAX, - "switching from block that's already got a next" + "switching {prev:?} -> {block:?} from block that's already got a next" ); prev_block.next = block; code.current_block = block; } - fn set_source_location(&mut self, location: SourceLocation) { - self.current_source_location = location; + fn set_source_range(&mut self, range: TextRange) { + self.current_source_range = range; } - fn get_source_line_number(&mut self) -> LineNumber { - let location = self.current_source_location; - location.row + fn get_source_line_number(&mut self) -> OneIndexed { + self.source_code + .line_index(self.current_source_range.start()) } fn push_qualified_path(&mut self, name: &str) { @@ -3071,19 +4062,19 @@ impl Compiler { /// Whether the expression contains an await expression and /// thus requires the function to be async. /// Async with and async for are statements, so I won't check for them here - fn contains_await(expression: &located_ast::Expr) -> bool { - use located_ast::*; + fn contains_await(expression: &Expr) -> bool { + use ruff_python_ast::*; match &expression { Expr::Call(ExprCall { - func, - args, - keywords, - .. + func, arguments, .. }) => { Self::contains_await(func) - || args.iter().any(Self::contains_await) - || keywords.iter().any(|kw| Self::contains_await(&kw.value)) + || arguments.args.iter().any(Self::contains_await) + || arguments + .keywords + .iter() + .any(|kw| Self::contains_await(&kw.value)) } Expr::BoolOp(ExprBoolOp { values, .. }) => values.iter().any(Self::contains_await), Expr::BinOp(ExprBinOp { left, right, .. }) => { @@ -3097,56 +4088,40 @@ impl Compiler { Expr::Compare(ExprCompare { left, comparators, .. }) => Self::contains_await(left) || comparators.iter().any(Self::contains_await), - Expr::Constant(ExprConstant { .. }) => false, Expr::List(ExprList { elts, .. }) => elts.iter().any(Self::contains_await), Expr::Tuple(ExprTuple { elts, .. }) => elts.iter().any(Self::contains_await), Expr::Set(ExprSet { elts, .. }) => elts.iter().any(Self::contains_await), - Expr::Dict(ExprDict { keys, values, .. }) => { - keys.iter() - .any(|key| key.as_ref().map_or(false, Self::contains_await)) - || values.iter().any(Self::contains_await) - } + Expr::Dict(ExprDict { items, .. }) => items + .iter() + .flat_map(|item| &item.key) + .any(Self::contains_await), Expr::Slice(ExprSlice { lower, upper, step, .. }) => { - lower.as_ref().map_or(false, |l| Self::contains_await(l)) - || upper.as_ref().map_or(false, |u| Self::contains_await(u)) - || step.as_ref().map_or(false, |s| Self::contains_await(s)) + lower.as_deref().is_some_and(Self::contains_await) + || upper.as_deref().is_some_and(Self::contains_await) + || step.as_deref().is_some_and(Self::contains_await) } Expr::Yield(ExprYield { value, .. }) => { - value.as_ref().map_or(false, |v| Self::contains_await(v)) + value.as_deref().is_some_and(Self::contains_await) } Expr::Await(ExprAwait { .. }) => true, Expr::YieldFrom(ExprYieldFrom { value, .. }) => Self::contains_await(value), - Expr::JoinedStr(ExprJoinedStr { values, .. }) => { - values.iter().any(Self::contains_await) - } - Expr::FormattedValue(ExprFormattedValue { - value, - conversion: _, - format_spec, - .. - }) => { - Self::contains_await(value) - || format_spec - .as_ref() - .map_or(false, |fs| Self::contains_await(fs)) - } - Expr::Name(located_ast::ExprName { .. }) => false, - Expr::Lambda(located_ast::ExprLambda { body, .. }) => Self::contains_await(body), - Expr::ListComp(located_ast::ExprListComp { + Expr::Name(ExprName { .. }) => false, + Expr::Lambda(ExprLambda { body, .. }) => Self::contains_await(body), + Expr::ListComp(ExprListComp { elt, generators, .. }) => { Self::contains_await(elt) - || generators.iter().any(|gen| Self::contains_await(&gen.iter)) + || generators.iter().any(|jen| Self::contains_await(&jen.iter)) } - Expr::SetComp(located_ast::ExprSetComp { + Expr::SetComp(ExprSetComp { elt, generators, .. }) => { Self::contains_await(elt) - || generators.iter().any(|gen| Self::contains_await(&gen.iter)) + || generators.iter().any(|jen| Self::contains_await(&jen.iter)) } - Expr::DictComp(located_ast::ExprDictComp { + Expr::DictComp(ExprDictComp { key, value, generators, @@ -3154,16 +4129,16 @@ impl Compiler { }) => { Self::contains_await(key) || Self::contains_await(value) - || generators.iter().any(|gen| Self::contains_await(&gen.iter)) + || generators.iter().any(|jen| Self::contains_await(&jen.iter)) } - Expr::GeneratorExp(located_ast::ExprGeneratorExp { + Expr::Generator(ExprGenerator { elt, generators, .. }) => { Self::contains_await(elt) - || generators.iter().any(|gen| Self::contains_await(&gen.iter)) + || generators.iter().any(|jen| Self::contains_await(&jen.iter)) } Expr::Starred(expr) => Self::contains_await(&expr.value), - Expr::IfExp(located_ast::ExprIfExp { + Expr::If(ExprIf { test, body, orelse, .. }) => { Self::contains_await(test) @@ -3171,12 +4146,168 @@ impl Compiler { || Self::contains_await(orelse) } - Expr::NamedExpr(located_ast::ExprNamedExpr { + Expr::Named(ExprNamed { target, value, range: _, }) => Self::contains_await(target) || Self::contains_await(value), + Expr::FString(ExprFString { value, range: _ }) => { + fn expr_element_contains_await bool>( + expr_element: &FStringExpressionElement, + contains_await: F, + ) -> bool { + contains_await(&expr_element.expression) + || expr_element + .format_spec + .iter() + .flat_map(|spec| spec.elements.expressions()) + .any(|element| expr_element_contains_await(element, contains_await)) + } + + value.elements().any(|element| match element { + FStringElement::Expression(expr_element) => { + expr_element_contains_await(expr_element, Self::contains_await) + } + FStringElement::Literal(_) => false, + }) + } + Expr::StringLiteral(_) + | Expr::BytesLiteral(_) + | Expr::NumberLiteral(_) + | Expr::BooleanLiteral(_) + | Expr::NoneLiteral(_) + | Expr::EllipsisLiteral(_) + | Expr::IpyEscapeCommand(_) => false, + } + } + + fn compile_expr_fstring(&mut self, fstring: &ExprFString) -> CompileResult<()> { + let fstring = &fstring.value; + for part in fstring { + self.compile_fstring_part(part)?; + } + let part_count: u32 = fstring + .iter() + .len() + .try_into() + .expect("BuildString size overflowed"); + if part_count > 1 { + emit!(self, Instruction::BuildString { size: part_count }); + } + + Ok(()) + } + + fn compile_fstring_part(&mut self, part: &FStringPart) -> CompileResult<()> { + match part { + FStringPart::Literal(string) => { + if string.value.contains(char::REPLACEMENT_CHARACTER) { + // might have a surrogate literal; should reparse to be sure + let source = self.source_code.get_range(string.range); + let value = + crate::string_parser::parse_string_literal(source, string.flags.into()); + self.emit_load_const(ConstantData::Str { + value: value.into(), + }); + } else { + self.emit_load_const(ConstantData::Str { + value: string.value.to_string().into(), + }); + } + Ok(()) + } + FStringPart::FString(fstring) => self.compile_fstring(fstring), + } + } + + fn compile_fstring(&mut self, fstring: &FString) -> CompileResult<()> { + self.compile_fstring_elements(fstring.flags, &fstring.elements) + } + + fn compile_fstring_elements( + &mut self, + flags: FStringFlags, + fstring_elements: &FStringElements, + ) -> CompileResult<()> { + let mut element_count = 0; + for element in fstring_elements { + element_count += 1; + match element { + FStringElement::Literal(string) => { + if string.value.contains(char::REPLACEMENT_CHARACTER) { + // might have a surrogate literal; should reparse to be sure + let source = self.source_code.get_range(string.range); + let value = crate::string_parser::parse_fstring_literal_element( + source.into(), + flags.into(), + ); + self.emit_load_const(ConstantData::Str { + value: value.into(), + }); + } else { + self.emit_load_const(ConstantData::Str { + value: string.value.to_string().into(), + }); + } + } + FStringElement::Expression(fstring_expr) => { + let mut conversion = fstring_expr.conversion; + + if let Some(DebugText { leading, trailing }) = &fstring_expr.debug_text { + let range = fstring_expr.expression.range(); + let source = self.source_code.get_range(range); + let text = [leading, source, trailing].concat(); + + self.emit_load_const(ConstantData::Str { value: text.into() }); + element_count += 1; + } + + match &fstring_expr.format_spec { + None => { + self.emit_load_const(ConstantData::Str { + value: Wtf8Buf::new(), + }); + // Match CPython behavior: If debug text is present, apply repr conversion. + // See: https://github.com/python/cpython/blob/f61afca262d3a0aa6a8a501db0b1936c60858e35/Parser/action_helpers.c#L1456 + if conversion == ConversionFlag::None + && fstring_expr.debug_text.is_some() + { + conversion = ConversionFlag::Repr; + } + } + Some(format_spec) => { + self.compile_fstring_elements(flags, &format_spec.elements)?; + } + } + + self.compile_expression(&fstring_expr.expression)?; + + let conversion = match conversion { + ConversionFlag::None => bytecode::ConversionFlag::None, + ConversionFlag::Str => bytecode::ConversionFlag::Str, + ConversionFlag::Ascii => bytecode::ConversionFlag::Ascii, + ConversionFlag::Repr => bytecode::ConversionFlag::Repr, + }; + emit!(self, Instruction::FormatValue { conversion }); + } + } + } + + if element_count == 0 { + // ensure to put an empty string on the stack if there aren't any fstring elements + self.emit_load_const(ConstantData::Str { + value: Wtf8Buf::new(), + }); + } else if element_count > 1 { + emit!( + self, + Instruction::BuildString { + size: element_count + } + ); } + + Ok(()) } } @@ -3204,67 +4335,129 @@ impl EmitArg for ir::BlockIdx { } } -fn split_doc<'a>( - body: &'a [located_ast::Stmt], - opts: &CompileOpts, -) -> (Option, &'a [located_ast::Stmt]) { - if let Some((located_ast::Stmt::Expr(expr), body_rest)) = body.split_first() { - if let Some(doc) = try_get_constant_string(std::slice::from_ref(&expr.value)) { - if opts.optimize < 2 { - return (Some(doc), body_rest); - } else { - return (None, body_rest); - } +/// Strips leading whitespace from a docstring. +/// +/// The code has been ported from `_PyCompile_CleanDoc` in cpython. +/// `inspect.cleandoc` is also a good reference, but has a few incompatibilities. +fn clean_doc(doc: &str) -> String { + let doc = expandtabs(doc, 8); + // First pass: find minimum indentation of any non-blank lines + // after first line. + let margin = doc + .lines() + // Find the non-blank lines + .filter(|line| !line.trim().is_empty()) + // get the one with the least indentation + .map(|line| line.chars().take_while(|c| c == &' ').count()) + .min(); + if let Some(margin) = margin { + let mut cleaned = String::with_capacity(doc.len()); + // copy first line without leading whitespace + if let Some(first_line) = doc.lines().next() { + cleaned.push_str(first_line.trim_start()); } + // copy subsequent lines without margin. + for line in doc.split('\n').skip(1) { + cleaned.push('\n'); + let cleaned_line = line.chars().skip(margin).collect::(); + cleaned.push_str(&cleaned_line); + } + + cleaned + } else { + doc.to_owned() } - (None, body) } -fn try_get_constant_string(values: &[located_ast::Expr]) -> Option { - fn get_constant_string_inner(out_string: &mut String, value: &located_ast::Expr) -> bool { - match value { - located_ast::Expr::Constant(located_ast::ExprConstant { - value: located_ast::Constant::Str(s), - .. - }) => { - out_string.push_str(s); - true +// copied from rustpython_common::str, so we don't have to depend on it just for this function +fn expandtabs(input: &str, tab_size: usize) -> String { + let tab_stop = tab_size; + let mut expanded_str = String::with_capacity(input.len()); + let mut tab_size = tab_stop; + let mut col_count = 0usize; + for ch in input.chars() { + match ch { + '\t' => { + let num_spaces = tab_size - col_count; + col_count += num_spaces; + let expand = " ".repeat(num_spaces); + expanded_str.push_str(&expand); + } + '\r' | '\n' => { + expanded_str.push(ch); + col_count = 0; + tab_size = 0; + } + _ => { + expanded_str.push(ch); + col_count += 1; } - located_ast::Expr::JoinedStr(located_ast::ExprJoinedStr { values, .. }) => values - .iter() - .all(|value| get_constant_string_inner(out_string, value)), - _ => false, + } + if col_count >= tab_size { + tab_size += tab_stop; } } - let mut out_string = String::new(); - if values - .iter() - .all(|v| get_constant_string_inner(&mut out_string, v)) - { - Some(out_string) - } else { - None + expanded_str +} + +fn split_doc<'a>(body: &'a [Stmt], opts: &CompileOpts) -> (Option, &'a [Stmt]) { + if let Some((Stmt::Expr(expr), body_rest)) = body.split_first() { + let doc_comment = match &*expr.value { + Expr::StringLiteral(value) => Some(&value.value), + // f-strings are not allowed in Python doc comments. + Expr::FString(_) => None, + _ => None, + }; + if let Some(doc) = doc_comment { + return if opts.optimize < 2 { + (Some(clean_doc(doc.to_str())), body_rest) + } else { + (None, body_rest) + }; + } } + (None, body) } -fn compile_constant(value: &located_ast::Constant) -> ConstantData { - match value { - located_ast::Constant::None => ConstantData::None, - located_ast::Constant::Bool(b) => ConstantData::Boolean { value: *b }, - located_ast::Constant::Str(s) => ConstantData::Str { value: s.clone() }, - located_ast::Constant::Bytes(b) => ConstantData::Bytes { value: b.clone() }, - located_ast::Constant::Int(i) => ConstantData::Integer { value: i.clone() }, - located_ast::Constant::Tuple(t) => ConstantData::Tuple { - elements: t.iter().map(compile_constant).collect(), - }, - located_ast::Constant::Float(f) => ConstantData::Float { value: *f }, - located_ast::Constant::Complex { real, imag } => ConstantData::Complex { - value: Complex64::new(*real, *imag), - }, - located_ast::Constant::Ellipsis => ConstantData::Ellipsis, +pub fn ruff_int_to_bigint(int: &Int) -> Result { + if let Some(small) = int.as_u64() { + Ok(BigInt::from(small)) + } else { + parse_big_integer(int) } } +/// Converts a `ruff` ast integer into a `BigInt`. +/// Unlike small integers, big integers may be stored in one of four possible radix representations. +fn parse_big_integer(int: &Int) -> Result { + // TODO: Improve ruff API + // Can we avoid this copy? + let s = format!("{}", int); + let mut s = s.as_str(); + // See: https://peps.python.org/pep-0515/#literal-grammar + let radix = match s.get(0..2) { + Some("0b" | "0B") => { + s = s.get(2..).unwrap_or(s); + 2 + } + Some("0o" | "0O") => { + s = s.get(2..).unwrap_or(s); + 8 + } + Some("0x" | "0X") => { + s = s.get(2..).unwrap_or(s); + 16 + } + _ => 10, + }; + + BigInt::from_str_radix(s, radix).map_err(|e| { + CodegenErrorType::SyntaxError(format!( + "unparsed integer literal (radix {radix}): {s} ({e})" + )) + }) +} + // Note: Not a good practice in general. Keep this trait private only for compiler trait ToU32 { fn to_u32(self) -> u32; @@ -3276,25 +4469,130 @@ impl ToU32 for usize { } } +#[cfg(test)] +mod ruff_tests { + use super::*; + use ruff_python_ast::name::Name; + use ruff_python_ast::*; + + /// Test if the compiler can correctly identify fstrings containing an `await` expression. + #[test] + fn test_fstring_contains_await() { + let range = TextRange::default(); + let flags = FStringFlags::empty(); + + // f'{x}' + let expr_x = Expr::Name(ExprName { + range, + id: Name::new("x"), + ctx: ExprContext::Load, + }); + let not_present = &Expr::FString(ExprFString { + range, + value: FStringValue::single(FString { + range, + elements: vec![FStringElement::Expression(FStringExpressionElement { + range, + expression: Box::new(expr_x), + debug_text: None, + conversion: ConversionFlag::None, + format_spec: None, + })] + .into(), + flags, + }), + }); + assert!(!Compiler::contains_await(not_present)); + + // f'{await x}' + let expr_await_x = Expr::Await(ExprAwait { + range, + value: Box::new(Expr::Name(ExprName { + range, + id: Name::new("x"), + ctx: ExprContext::Load, + })), + }); + let present = &Expr::FString(ExprFString { + range, + value: FStringValue::single(FString { + range, + elements: vec![FStringElement::Expression(FStringExpressionElement { + range, + expression: Box::new(expr_await_x), + debug_text: None, + conversion: ConversionFlag::None, + format_spec: None, + })] + .into(), + flags, + }), + }); + assert!(Compiler::contains_await(present)); + + // f'{x:{await y}}' + let expr_x = Expr::Name(ExprName { + range, + id: Name::new("x"), + ctx: ExprContext::Load, + }); + let expr_await_y = Expr::Await(ExprAwait { + range, + value: Box::new(Expr::Name(ExprName { + range, + id: Name::new("y"), + ctx: ExprContext::Load, + })), + }); + let present = &Expr::FString(ExprFString { + range, + value: FStringValue::single(FString { + range, + elements: vec![FStringElement::Expression(FStringExpressionElement { + range, + expression: Box::new(expr_x), + debug_text: None, + conversion: ConversionFlag::None, + format_spec: Some(Box::new(FStringFormatSpec { + range, + elements: vec![FStringElement::Expression(FStringExpressionElement { + range, + expression: Box::new(expr_await_y), + debug_text: None, + conversion: ConversionFlag::None, + format_spec: None, + })] + .into(), + })), + })] + .into(), + flags, + }), + }); + assert!(Compiler::contains_await(present)); + } +} + #[cfg(test)] mod tests { use super::*; - use rustpython_parser::ast::Suite; - use rustpython_parser::Parse; - use rustpython_parser_core::source_code::LinearLocator; fn compile_exec(source: &str) -> CodeObject { - let mut locator: LinearLocator = LinearLocator::new(source); - use rustpython_parser::ast::fold::Fold; - let mut compiler: Compiler = Compiler::new( - CompileOpts::default(), - "source_path".to_owned(), - "".to_owned(), - ); - let ast = Suite::parse(source, "").unwrap(); - let ast = locator.fold(ast).unwrap(); - let symbol_scope = SymbolTable::scan_program(&ast).unwrap(); - compiler.compile_program(&ast, symbol_scope).unwrap(); + let opts = CompileOpts::default(); + let source_code = SourceCode::new("source_path", source); + let parsed = + ruff_python_parser::parse(source_code.text, ruff_python_parser::Mode::Module.into()) + .unwrap(); + let ast = parsed.into_syntax(); + let ast = match ast { + ruff_python_ast::Mod::Module(stmts) => stmts, + _ => unreachable!(), + }; + let symbol_table = SymbolTable::scan_program(&ast, source_code.clone()) + .map_err(|e| e.into_codegen_error(source_code.path.to_owned())) + .unwrap(); + let mut compiler = Compiler::new(opts, source_code, "".to_owned()); + compiler.compile_program(&ast, symbol_table).unwrap(); compiler.pop_code_object() } diff --git a/compiler/codegen/src/error.rs b/compiler/codegen/src/error.rs index 017f735105..5e0ac12934 100644 --- a/compiler/codegen/src/error.rs +++ b/compiler/codegen/src/error.rs @@ -1,6 +1,59 @@ -use std::fmt; +use ruff_source_file::SourceLocation; +use std::fmt::{self, Display}; +use thiserror::Error; -pub type CodegenError = rustpython_parser_core::source_code::LocatedError; +#[derive(Debug)] +pub enum PatternUnreachableReason { + NameCapture, + Wildcard, +} + +impl Display for PatternUnreachableReason { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + match self { + Self::NameCapture => write!(f, "name capture"), + Self::Wildcard => write!(f, "wildcard"), + } + } +} + +// pub type CodegenError = rustpython_parser_core::source_code::LocatedError; + +#[derive(Error, Debug)] +pub struct CodegenError { + pub location: Option, + #[source] + pub error: CodegenErrorType, + pub source_path: String, +} + +impl fmt::Display for CodegenError { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + // TODO: + self.error.fmt(f) + } +} + +#[derive(Debug)] +#[non_exhaustive] +pub enum InternalError { + StackOverflow, + StackUnderflow, + MissingSymbol(String), +} + +impl Display for InternalError { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + match self { + Self::StackOverflow => write!(f, "stack overflow"), + Self::StackUnderflow => write!(f, "stack underflow"), + Self::MissingSymbol(s) => write!( + f, + "The symbol '{s}' must be present in the symbol table, even when it is undefined in python." + ), + } + } +} #[derive(Debug)] #[non_exhaustive] @@ -30,13 +83,18 @@ pub enum CodegenErrorType { TooManyStarUnpack, EmptyWithItems, EmptyWithBody, + ForbiddenName, + DuplicateStore(String), + UnreachablePattern(PatternUnreachableReason), + RepeatedAttributePattern, + ConflictingNameBindPattern, NotImplementedYet, // RustPython marker for unimplemented features } impl std::error::Error for CodegenErrorType {} impl fmt::Display for CodegenErrorType { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { use CodegenErrorType::*; match self { Assign(target) => write!(f, "cannot assign to {target}"), @@ -75,6 +133,21 @@ impl fmt::Display for CodegenErrorType { EmptyWithBody => { write!(f, "empty body on With") } + ForbiddenName => { + write!(f, "forbidden attribute name") + } + DuplicateStore(s) => { + write!(f, "duplicate store {s}") + } + UnreachablePattern(reason) => { + write!(f, "{reason} makes remaining patterns unreachable") + } + RepeatedAttributePattern => { + write!(f, "attribute name repeated in class pattern") + } + ConflictingNameBindPattern => { + write!(f, "alternative patterns bind different names") + } NotImplementedYet => { write!(f, "RustPython does not implement this feature yet") } diff --git a/compiler/codegen/src/ir.rs b/compiler/codegen/src/ir.rs index 9f1a86e51d..bb1f8b7564 100644 --- a/compiler/codegen/src/ir.rs +++ b/compiler/codegen/src/ir.rs @@ -1,10 +1,12 @@ use std::ops; use crate::IndexSet; +use crate::error::InternalError; +use ruff_source_file::{OneIndexed, SourceLocation}; use rustpython_compiler_core::bytecode::{ CodeFlags, CodeObject, CodeUnit, ConstantData, InstrDisplayContext, Instruction, Label, OpArg, }; -use rustpython_parser_core::source_code::{LineNumber, SourceLocation}; +// use rustpython_parser_core::source_code::{LineNumber, SourceLocation}; #[derive(Copy, Clone, PartialEq, Eq, Debug)] pub struct BlockIdx(pub u32); @@ -37,11 +39,12 @@ impl ops::IndexMut for Vec { } } -#[derive(Debug, Copy, Clone)] +#[derive(Debug, Clone)] pub struct InstructionInfo { pub instr: Instruction, pub arg: OpArg, pub target: BlockIdx, + // pub range: TextRange, pub location: SourceLocation, } @@ -68,7 +71,7 @@ pub struct CodeInfo { pub arg_count: u32, pub kwonlyarg_count: u32, pub source_path: String, - pub first_line_number: LineNumber, + pub first_line_number: OneIndexed, pub obj_name: String, // Name of the object that created this code object pub blocks: Vec, @@ -80,12 +83,12 @@ pub struct CodeInfo { pub freevar_cache: IndexSet, } impl CodeInfo { - pub fn finalize_code(mut self, optimize: u8) -> CodeObject { + pub fn finalize_code(mut self, optimize: u8) -> crate::InternalResult { if optimize > 0 { self.dce(); } - let max_stackdepth = self.max_stackdepth(); + let max_stackdepth = self.max_stackdepth()?; let cell2arg = self.cell2arg(); let CodeInfo { @@ -134,7 +137,7 @@ impl CodeInfo { *arg = new_arg; } let (extras, lo_arg) = arg.split(); - locations.extend(std::iter::repeat(info.location).take(arg.instr_size())); + locations.extend(std::iter::repeat_n(info.location.clone(), arg.instr_size())); instructions.extend( extras .map(|byte| CodeUnit::new(Instruction::ExtendedArg, byte)) @@ -152,7 +155,7 @@ impl CodeInfo { locations.clear() } - CodeObject { + Ok(CodeObject { flags, posonlyarg_count, arg_count, @@ -170,7 +173,7 @@ impl CodeInfo { cellvars: cellvar_cache.into_iter().collect(), freevars: freevar_cache.into_iter().collect(), cell2arg, - } + }) } fn cell2arg(&self) -> Option> { @@ -199,11 +202,7 @@ impl CodeInfo { }) .collect::>(); - if found_cellarg { - Some(cell2arg) - } else { - None - } + if found_cellarg { Some(cell2arg) } else { None } } fn dce(&mut self) { @@ -221,7 +220,7 @@ impl CodeInfo { } } - fn max_stackdepth(&self) -> u32 { + fn max_stackdepth(&self) -> crate::InternalResult { let mut maxdepth = 0u32; let mut stack = Vec::with_capacity(self.blocks.len()); let mut start_depths = vec![u32::MAX; self.blocks.len()]; @@ -246,7 +245,13 @@ impl CodeInfo { let instr_display = instr.display(display_arg, self); eprint!("{instr_display}: {depth} {effect:+} => "); } - let new_depth = depth.checked_add_signed(effect).unwrap(); + let new_depth = depth.checked_add_signed(effect).ok_or({ + if effect < 0 { + InternalError::StackUnderflow + } else { + InternalError::StackOverflow + } + })?; if DEBUG { eprintln!("{new_depth}"); } @@ -263,7 +268,13 @@ impl CodeInfo { ) { let effect = instr.stack_effect(ins.arg, true); - let target_depth = depth.checked_add_signed(effect).unwrap(); + let target_depth = depth.checked_add_signed(effect).ok_or({ + if effect < 0 { + InternalError::StackUnderflow + } else { + InternalError::StackOverflow + } + })?; if target_depth > maxdepth { maxdepth = target_depth } @@ -279,7 +290,7 @@ impl CodeInfo { if DEBUG { eprintln!("DONE: {maxdepth}"); } - maxdepth + Ok(maxdepth) } } diff --git a/compiler/codegen/src/lib.rs b/compiler/codegen/src/lib.rs index 910d015a39..3ef6a7456f 100644 --- a/compiler/codegen/src/lib.rs +++ b/compiler/codegen/src/lib.rs @@ -11,6 +11,56 @@ type IndexSet = indexmap::IndexSet; pub mod compile; pub mod error; pub mod ir; +mod string_parser; pub mod symboltable; +mod unparse; pub use compile::CompileOpts; +use ruff_python_ast::Expr; + +pub(crate) use compile::InternalResult; + +pub trait ToPythonName { + /// Returns a short name for the node suitable for use in error messages. + fn python_name(&self) -> &'static str; +} + +impl ToPythonName for Expr { + fn python_name(&self) -> &'static str { + match self { + Expr::BoolOp { .. } | Expr::BinOp { .. } | Expr::UnaryOp { .. } => "operator", + Expr::Subscript { .. } => "subscript", + Expr::Await { .. } => "await expression", + Expr::Yield { .. } | Expr::YieldFrom { .. } => "yield expression", + Expr::Compare { .. } => "comparison", + Expr::Attribute { .. } => "attribute", + Expr::Call { .. } => "function call", + Expr::BooleanLiteral(b) => { + if b.value { + "True" + } else { + "False" + } + } + Expr::EllipsisLiteral(_) => "ellipsis", + Expr::NoneLiteral(_) => "None", + Expr::NumberLiteral(_) | Expr::BytesLiteral(_) | Expr::StringLiteral(_) => "literal", + Expr::Tuple(_) => "tuple", + Expr::List { .. } => "list", + Expr::Dict { .. } => "dict display", + Expr::Set { .. } => "set display", + Expr::ListComp { .. } => "list comprehension", + Expr::DictComp { .. } => "dict comprehension", + Expr::SetComp { .. } => "set comprehension", + Expr::Generator { .. } => "generator expression", + Expr::Starred { .. } => "starred", + Expr::Slice { .. } => "slice", + Expr::FString { .. } => "f-string expression", + Expr::Name { .. } => "name", + Expr::Lambda { .. } => "lambda", + Expr::If { .. } => "conditional expression", + Expr::Named { .. } => "named expression", + Expr::IpyEscapeCommand(_) => todo!(), + } + } +} diff --git a/compiler/codegen/src/string_parser.rs b/compiler/codegen/src/string_parser.rs new file mode 100644 index 0000000000..74f8e30012 --- /dev/null +++ b/compiler/codegen/src/string_parser.rs @@ -0,0 +1,287 @@ +//! A stripped-down version of ruff's string literal parser, modified to +//! handle surrogates in string literals and output WTF-8. +//! +//! Any `unreachable!()` statements in this file are because we only get here +//! after ruff has already successfully parsed the string literal, meaning +//! we don't need to do any validation or error handling. + +use std::convert::Infallible; + +use ruff_python_ast::{AnyStringFlags, StringFlags}; +use rustpython_wtf8::{CodePoint, Wtf8, Wtf8Buf}; + +// use ruff_python_parser::{LexicalError, LexicalErrorType}; +type LexicalError = Infallible; + +enum EscapedChar { + Literal(CodePoint), + Escape(char), +} + +struct StringParser { + /// The raw content of the string e.g., the `foo` part in `"foo"`. + source: Box, + /// Current position of the parser in the source. + cursor: usize, + /// Flags that can be used to query information about the string. + flags: AnyStringFlags, +} + +impl StringParser { + fn new(source: Box, flags: AnyStringFlags) -> Self { + Self { + source, + cursor: 0, + flags, + } + } + + #[inline] + fn skip_bytes(&mut self, bytes: usize) -> &str { + let skipped_str = &self.source[self.cursor..self.cursor + bytes]; + self.cursor += bytes; + skipped_str + } + + /// Returns the next byte in the string, if there is one. + /// + /// # Panics + /// + /// When the next byte is a part of a multi-byte character. + #[inline] + fn next_byte(&mut self) -> Option { + self.source[self.cursor..].as_bytes().first().map(|&byte| { + self.cursor += 1; + byte + }) + } + + #[inline] + fn next_char(&mut self) -> Option { + self.source[self.cursor..].chars().next().inspect(|c| { + self.cursor += c.len_utf8(); + }) + } + + #[inline] + fn peek_byte(&self) -> Option { + self.source[self.cursor..].as_bytes().first().copied() + } + + fn parse_unicode_literal(&mut self, literal_number: usize) -> Result { + let mut p: u32 = 0u32; + for i in 1..=literal_number { + match self.next_char() { + Some(c) => match c.to_digit(16) { + Some(d) => p += d << ((literal_number - i) * 4), + None => unreachable!(), + }, + None => unreachable!(), + } + } + Ok(CodePoint::from_u32(p).unwrap()) + } + + fn parse_octet(&mut self, o: u8) -> char { + let mut radix_bytes = [o, 0, 0]; + let mut len = 1; + + while len < 3 { + let Some(b'0'..=b'7') = self.peek_byte() else { + break; + }; + + radix_bytes[len] = self.next_byte().unwrap(); + len += 1; + } + + // OK because radix_bytes is always going to be in the ASCII range. + let radix_str = std::str::from_utf8(&radix_bytes[..len]).expect("ASCII bytes"); + let value = u32::from_str_radix(radix_str, 8).unwrap(); + char::from_u32(value).unwrap() + } + + fn parse_unicode_name(&mut self) -> Result { + let Some('{') = self.next_char() else { + unreachable!() + }; + + let Some(close_idx) = self.source[self.cursor..].find('}') else { + unreachable!() + }; + + let name_and_ending = self.skip_bytes(close_idx + 1); + let name = &name_and_ending[..name_and_ending.len() - 1]; + + unicode_names2::character(name).ok_or_else(|| unreachable!()) + } + + /// Parse an escaped character, returning the new character. + fn parse_escaped_char(&mut self) -> Result, LexicalError> { + let Some(first_char) = self.next_char() else { + unreachable!() + }; + + let new_char = match first_char { + '\\' => '\\'.into(), + '\'' => '\''.into(), + '\"' => '"'.into(), + 'a' => '\x07'.into(), + 'b' => '\x08'.into(), + 'f' => '\x0c'.into(), + 'n' => '\n'.into(), + 'r' => '\r'.into(), + 't' => '\t'.into(), + 'v' => '\x0b'.into(), + o @ '0'..='7' => self.parse_octet(o as u8).into(), + 'x' => self.parse_unicode_literal(2)?, + 'u' if !self.flags.is_byte_string() => self.parse_unicode_literal(4)?, + 'U' if !self.flags.is_byte_string() => self.parse_unicode_literal(8)?, + 'N' if !self.flags.is_byte_string() => self.parse_unicode_name()?.into(), + // Special cases where the escape sequence is not a single character + '\n' => return Ok(None), + '\r' => { + if self.peek_byte() == Some(b'\n') { + self.next_byte(); + } + + return Ok(None); + } + _ => return Ok(Some(EscapedChar::Escape(first_char))), + }; + + Ok(Some(EscapedChar::Literal(new_char))) + } + + fn parse_fstring_middle(mut self) -> Result, LexicalError> { + // Fast-path: if the f-string doesn't contain any escape sequences, return the literal. + let Some(mut index) = memchr::memchr3(b'{', b'}', b'\\', self.source.as_bytes()) else { + return Ok(self.source.into()); + }; + + let mut value = Wtf8Buf::with_capacity(self.source.len()); + loop { + // Add the characters before the escape sequence (or curly brace) to the string. + let before_with_slash_or_brace = self.skip_bytes(index + 1); + let before = &before_with_slash_or_brace[..before_with_slash_or_brace.len() - 1]; + value.push_str(before); + + // Add the escaped character to the string. + match &self.source.as_bytes()[self.cursor - 1] { + // If there are any curly braces inside a `FStringMiddle` token, + // then they were escaped (i.e. `{{` or `}}`). This means that + // we need increase the location by 2 instead of 1. + b'{' => value.push_char('{'), + b'}' => value.push_char('}'), + // We can encounter a `\` as the last character in a `FStringMiddle` + // token which is valid in this context. For example, + // + // ```python + // f"\{foo} \{bar:\}" + // # ^ ^^ ^ + // ``` + // + // Here, the `FStringMiddle` token content will be "\" and " \" + // which is invalid if we look at the content in isolation: + // + // ```python + // "\" + // ``` + // + // However, the content is syntactically valid in the context of + // the f-string because it's a substring of the entire f-string. + // This is still an invalid escape sequence, but we don't want to + // raise a syntax error as is done by the CPython parser. It might + // be supported in the future, refer to point 3: https://peps.python.org/pep-0701/#rejected-ideas + b'\\' => { + if !self.flags.is_raw_string() && self.peek_byte().is_some() { + match self.parse_escaped_char()? { + None => {} + Some(EscapedChar::Literal(c)) => value.push(c), + Some(EscapedChar::Escape(c)) => { + value.push_char('\\'); + value.push_char(c); + } + } + } else { + value.push_char('\\'); + } + } + ch => { + unreachable!("Expected '{{', '}}', or '\\' but got {:?}", ch); + } + } + + let Some(next_index) = + memchr::memchr3(b'{', b'}', b'\\', self.source[self.cursor..].as_bytes()) + else { + // Add the rest of the string to the value. + let rest = &self.source[self.cursor..]; + value.push_str(rest); + break; + }; + + index = next_index; + } + + Ok(value.into()) + } + + fn parse_string(mut self) -> Result, LexicalError> { + if self.flags.is_raw_string() { + // For raw strings, no escaping is necessary. + return Ok(self.source.into()); + } + + let Some(mut escape) = memchr::memchr(b'\\', self.source.as_bytes()) else { + // If the string doesn't contain any escape sequences, return the owned string. + return Ok(self.source.into()); + }; + + // If the string contains escape sequences, we need to parse them. + let mut value = Wtf8Buf::with_capacity(self.source.len()); + + loop { + // Add the characters before the escape sequence to the string. + let before_with_slash = self.skip_bytes(escape + 1); + let before = &before_with_slash[..before_with_slash.len() - 1]; + value.push_str(before); + + // Add the escaped character to the string. + match self.parse_escaped_char()? { + None => {} + Some(EscapedChar::Literal(c)) => value.push(c), + Some(EscapedChar::Escape(c)) => { + value.push_char('\\'); + value.push_char(c); + } + } + + let Some(next_escape) = self.source[self.cursor..].find('\\') else { + // Add the rest of the string to the value. + let rest = &self.source[self.cursor..]; + value.push_str(rest); + break; + }; + + // Update the position of the next escape sequence. + escape = next_escape; + } + + Ok(value.into()) + } +} + +pub(crate) fn parse_string_literal(source: &str, flags: AnyStringFlags) -> Box { + let source = &source[flags.opener_len().to_usize()..]; + let source = &source[..source.len() - flags.quote_len().to_usize()]; + StringParser::new(source.into(), flags) + .parse_string() + .unwrap_or_else(|x| match x {}) +} + +pub(crate) fn parse_fstring_literal_element(source: Box, flags: AnyStringFlags) -> Box { + StringParser::new(source, flags) + .parse_fstring_middle() + .unwrap_or_else(|x| match x {}) +} diff --git a/compiler/codegen/src/symboltable.rs b/compiler/codegen/src/symboltable.rs index 8522c82037..4f42b3996f 100644 --- a/compiler/codegen/src/symboltable.rs +++ b/compiler/codegen/src/symboltable.rs @@ -8,12 +8,20 @@ Inspirational file: https://github.com/python/cpython/blob/main/Python/symtable. */ use crate::{ - error::{CodegenError, CodegenErrorType}, IndexMap, + error::{CodegenError, CodegenErrorType}, }; use bitflags::bitflags; -use rustpython_ast::{self as ast, located::Located}; -use rustpython_parser_core::source_code::{LineNumber, SourceLocation}; +use ruff_python_ast::{ + self as ast, Comprehension, Decorator, Expr, Identifier, ModExpression, ModModule, Parameter, + ParameterWithDefault, Parameters, Pattern, PatternMatchAs, PatternMatchClass, + PatternMatchMapping, PatternMatchOr, PatternMatchSequence, PatternMatchStar, PatternMatchValue, + Stmt, TypeParam, TypeParamParamSpec, TypeParamTypeVar, TypeParamTypeVarTuple, TypeParams, +}; +use ruff_text_size::{Ranged, TextRange}; +use rustpython_compiler_source::{SourceCode, SourceLocation}; +// use rustpython_ast::{self as ast, located::Located}; +// use rustpython_parser_core::source_code::{LineNumber, SourceLocation}; use std::{borrow::Cow, fmt}; /// Captures all symbols in the current scope, and has a list of sub-scopes in this scope. @@ -51,15 +59,18 @@ impl SymbolTable { } } - pub fn scan_program(program: &[ast::located::Stmt]) -> SymbolTableResult { - let mut builder = SymbolTableBuilder::new(); - builder.scan_statements(program)?; + pub fn scan_program( + program: &ModModule, + source_code: SourceCode<'_>, + ) -> SymbolTableResult { + let mut builder = SymbolTableBuilder::new(source_code); + builder.scan_statements(program.body.as_ref())?; builder.finish() } - pub fn scan_expr(expr: &ast::located::Expr) -> SymbolTableResult { - let mut builder = SymbolTableBuilder::new(); - builder.scan_expression(expr, ExpressionContext::Load)?; + pub fn scan_expr(expr: &ModExpression, source_code: SourceCode<'_>) -> SymbolTableResult { + let mut builder = SymbolTableBuilder::new(source_code); + builder.scan_expression(expr.body.as_ref(), ExpressionContext::Load)?; builder.finish() } } @@ -74,7 +85,7 @@ pub enum SymbolTableType { } impl fmt::Display for SymbolTableType { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match self { SymbolTableType::Module => write!(f, "module"), SymbolTableType::Class => write!(f, "class"), @@ -176,11 +187,8 @@ pub struct SymbolTableError { impl SymbolTableError { pub fn into_codegen_error(self, source_path: String) -> CodegenError { CodegenError { + location: self.location, error: CodegenErrorType::SyntaxError(self.error), - location: self.location.map(|l| SourceLocation { - row: l.row, - column: l.column, - }), source_path, } } @@ -195,7 +203,7 @@ impl SymbolTable { } impl std::fmt::Debug for SymbolTable { - fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result { + fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { write!( f, "SymbolTable({:?} symbols, {:?} sub scopes)", @@ -505,7 +513,10 @@ impl SymbolTableAnalyzer { // check if assignee is an iterator in top scope if parent_symbol.flags.contains(SymbolFlags::ITER) { return Err(SymbolTableError { - error: format!("assignment expression cannot rebind comprehension iteration variable {}", symbol.name), + error: format!( + "assignment expression cannot rebind comprehension iteration variable {}", + symbol.name + ), location: None, }); } @@ -548,11 +559,12 @@ enum SymbolUsage { Iter, } -struct SymbolTableBuilder { +struct SymbolTableBuilder<'src> { class_name: Option, // Scope stack. tables: Vec, future_annotations: bool, + source_code: SourceCode<'src>, } /// Enum to indicate in what mode an expression @@ -568,19 +580,20 @@ enum ExpressionContext { IterDefinitionExp, } -impl SymbolTableBuilder { - fn new() -> Self { +impl<'src> SymbolTableBuilder<'src> { + fn new(source_code: SourceCode<'src>) -> Self { let mut this = Self { class_name: None, tables: vec![], future_annotations: false, + source_code, }; this.enter_scope("top", SymbolTableType::Module, 0); this } } -impl SymbolTableBuilder { +impl SymbolTableBuilder<'_> { fn finish(mut self) -> Result { assert_eq!(self.tables.len(), 1); let mut symbol_table = self.tables.pop().unwrap(); @@ -604,38 +617,34 @@ impl SymbolTableBuilder { self.tables.last_mut().unwrap().sub_tables.push(table); } - fn scan_statements(&mut self, statements: &[ast::located::Stmt]) -> SymbolTableResult { + fn line_index_start(&self, range: TextRange) -> u32 { + self.source_code.line_index(range.start()).get() as _ + } + + fn scan_statements(&mut self, statements: &[Stmt]) -> SymbolTableResult { for statement in statements { self.scan_statement(statement)?; } Ok(()) } - fn scan_parameters( - &mut self, - parameters: &[ast::located::ArgWithDefault], - ) -> SymbolTableResult { + fn scan_parameters(&mut self, parameters: &[ParameterWithDefault]) -> SymbolTableResult { for parameter in parameters { - let usage = if parameter.def.annotation.is_some() { - SymbolUsage::AnnotationParameter - } else { - SymbolUsage::Parameter - }; - self.register_name(parameter.def.arg.as_str(), usage, parameter.def.location())?; + self.scan_parameter(¶meter.parameter)?; } Ok(()) } - fn scan_parameter(&mut self, parameter: &ast::located::Arg) -> SymbolTableResult { + fn scan_parameter(&mut self, parameter: &Parameter) -> SymbolTableResult { let usage = if parameter.annotation.is_some() { SymbolUsage::AnnotationParameter } else { SymbolUsage::Parameter }; - self.register_name(parameter.arg.as_str(), usage, parameter.location()) + self.register_ident(¶meter.name, usage) } - fn scan_annotation(&mut self, annotation: &ast::located::Expr) -> SymbolTableResult { + fn scan_annotation(&mut self, annotation: &Expr) -> SymbolTableResult { if self.future_annotations { Ok(()) } else { @@ -643,8 +652,8 @@ impl SymbolTableBuilder { } } - fn scan_statement(&mut self, statement: &ast::located::Stmt) -> SymbolTableResult { - use ast::located::*; + fn scan_statement(&mut self, statement: &Stmt) -> SymbolTableResult { + use ruff_python_ast::*; if let Stmt::ImportFrom(StmtImportFrom { module, names, .. }) = &statement { if module.as_ref().map(|id| id.as_str()) == Some("__future__") { for feature in names { @@ -655,101 +664,109 @@ impl SymbolTableBuilder { } } match &statement { - Stmt::Global(StmtGlobal { names, range }) => { + Stmt::Global(StmtGlobal { names, .. }) => { for name in names { - self.register_name(name.as_str(), SymbolUsage::Global, range.start)?; + self.register_ident(name, SymbolUsage::Global)?; } } - Stmt::Nonlocal(StmtNonlocal { names, range }) => { + Stmt::Nonlocal(StmtNonlocal { names, .. }) => { for name in names { - self.register_name(name.as_str(), SymbolUsage::Nonlocal, range.start)?; + self.register_ident(name, SymbolUsage::Nonlocal)?; } } Stmt::FunctionDef(StmtFunctionDef { name, body, - args, - decorator_list, - type_params, - returns, - range, - .. - }) - | Stmt::AsyncFunctionDef(StmtAsyncFunctionDef { - name, - body, - args, + parameters, decorator_list, type_params, returns, range, .. }) => { - self.scan_expressions(decorator_list, ExpressionContext::Load)?; - self.register_name(name.as_str(), SymbolUsage::Assigned, range.start)?; + self.scan_decorators(decorator_list, ExpressionContext::Load)?; + self.register_ident(name, SymbolUsage::Assigned)?; if let Some(expression) = returns { self.scan_annotation(expression)?; } - if !type_params.is_empty() { + if let Some(type_params) = type_params { self.enter_scope( &format!("", name.as_str()), SymbolTableType::TypeParams, - range.start.row.get(), + // FIXME: line no + self.line_index_start(*range), ); self.scan_type_params(type_params)?; } - self.enter_function(name.as_str(), args, range.start.row)?; + self.enter_scope_with_parameters( + name.as_str(), + parameters, + self.line_index_start(*range), + )?; self.scan_statements(body)?; self.leave_scope(); - if !type_params.is_empty() { + if type_params.is_some() { self.leave_scope(); } } Stmt::ClassDef(StmtClassDef { name, body, - bases, - keywords, + arguments, decorator_list, type_params, range, }) => { - if !type_params.is_empty() { + if let Some(type_params) = type_params { self.enter_scope( &format!("", name.as_str()), SymbolTableType::TypeParams, - range.start.row.get(), + self.line_index_start(type_params.range), ); self.scan_type_params(type_params)?; } - self.enter_scope(name.as_str(), SymbolTableType::Class, range.start.row.get()); - let prev_class = std::mem::replace(&mut self.class_name, Some(name.to_string())); - self.register_name("__module__", SymbolUsage::Assigned, range.start)?; - self.register_name("__qualname__", SymbolUsage::Assigned, range.start)?; - self.register_name("__doc__", SymbolUsage::Assigned, range.start)?; - self.register_name("__class__", SymbolUsage::Assigned, range.start)?; + self.enter_scope( + name.as_str(), + SymbolTableType::Class, + self.line_index_start(*range), + ); + let prev_class = self.class_name.replace(name.to_string()); + self.register_name("__module__", SymbolUsage::Assigned, *range)?; + self.register_name("__qualname__", SymbolUsage::Assigned, *range)?; + self.register_name("__doc__", SymbolUsage::Assigned, *range)?; + self.register_name("__class__", SymbolUsage::Assigned, *range)?; self.scan_statements(body)?; self.leave_scope(); self.class_name = prev_class; - self.scan_expressions(bases, ExpressionContext::Load)?; - for keyword in keywords { - self.scan_expression(&keyword.value, ExpressionContext::Load)?; + if let Some(arguments) = arguments { + self.scan_expressions(&arguments.args, ExpressionContext::Load)?; + for keyword in &arguments.keywords { + self.scan_expression(&keyword.value, ExpressionContext::Load)?; + } } - if !type_params.is_empty() { + if type_params.is_some() { self.leave_scope(); } - self.scan_expressions(decorator_list, ExpressionContext::Load)?; - self.register_name(name.as_str(), SymbolUsage::Assigned, range.start)?; + self.scan_decorators(decorator_list, ExpressionContext::Load)?; + self.register_ident(name, SymbolUsage::Assigned)?; } Stmt::Expr(StmtExpr { value, .. }) => { self.scan_expression(value, ExpressionContext::Load)? } Stmt::If(StmtIf { - test, body, orelse, .. + test, + body, + elif_else_clauses, + .. }) => { self.scan_expression(test, ExpressionContext::Load)?; self.scan_statements(body)?; - self.scan_statements(orelse)?; + for elif in elif_else_clauses { + if let Some(test) = &elif.test { + self.scan_expression(test, ExpressionContext::Load)?; + } + self.scan_statements(&elif.body)?; + } } Stmt::For(StmtFor { target, @@ -757,13 +774,6 @@ impl SymbolTableBuilder { body, orelse, .. - }) - | Stmt::AsyncFor(StmtAsyncFor { - target, - iter, - body, - orelse, - .. }) => { self.scan_expression(target, ExpressionContext::Store)?; self.scan_expression(iter, ExpressionContext::Load)?; @@ -780,18 +790,18 @@ impl SymbolTableBuilder { Stmt::Break(_) | Stmt::Continue(_) | Stmt::Pass(_) => { // No symbols here. } - Stmt::Import(StmtImport { names, range }) - | Stmt::ImportFrom(StmtImportFrom { names, range, .. }) => { + Stmt::Import(StmtImport { names, .. }) + | Stmt::ImportFrom(StmtImportFrom { names, .. }) => { for name in names { if let Some(alias) = &name.asname { // `import my_module as my_alias` - self.register_name(alias.as_str(), SymbolUsage::Imported, range.start)?; + self.register_ident(alias, SymbolUsage::Imported)?; } else { // `import module` self.register_name( name.name.split('.').next().unwrap(), SymbolUsage::Imported, - range.start, + name.name.range, )?; } } @@ -828,11 +838,7 @@ impl SymbolTableBuilder { // https://github.com/python/cpython/blob/main/Python/symtable.c#L1233 match &**target { Expr::Name(ast::ExprName { id, .. }) if *simple => { - self.register_name( - id.as_str(), - SymbolUsage::AnnotationAssigned, - range.start, - )?; + self.register_name(id.as_str(), SymbolUsage::AnnotationAssigned, *range)?; } _ => { self.scan_expression(target, ExpressionContext::Store)?; @@ -843,8 +849,7 @@ impl SymbolTableBuilder { self.scan_expression(value, ExpressionContext::Load)?; } } - Stmt::With(StmtWith { items, body, .. }) - | Stmt::AsyncWith(StmtAsyncWith { items, body, .. }) => { + Stmt::With(StmtWith { items, body, .. }) => { for item in items { self.scan_expression(&item.context_expr, ExpressionContext::Load)?; if let Some(expression) = &item.optional_vars { @@ -858,14 +863,7 @@ impl SymbolTableBuilder { handlers, orelse, finalbody, - range, - }) - | Stmt::TryStar(StmtTryStar { - body, - handlers, - orelse, - finalbody, - range, + .. }) => { self.scan_statements(body)?; for handler in handlers { @@ -879,18 +877,22 @@ impl SymbolTableBuilder { self.scan_expression(expression, ExpressionContext::Load)?; } if let Some(name) = name { - self.register_name(name.as_str(), SymbolUsage::Assigned, range.start)?; + self.register_ident(name, SymbolUsage::Assigned)?; } self.scan_statements(body)?; } self.scan_statements(orelse)?; self.scan_statements(finalbody)?; } - Stmt::Match(StmtMatch { subject, .. }) => { - return Err(SymbolTableError { - error: "match expression is not implemented yet".to_owned(), - location: Some(subject.location()), - }); + Stmt::Match(StmtMatch { subject, cases, .. }) => { + self.scan_expression(subject, ExpressionContext::Load)?; + for case in cases { + self.scan_pattern(&case.pattern)?; + if let Some(guard) = &case.guard { + self.scan_expression(guard, ExpressionContext::Load)?; + } + self.scan_statements(&case.body)?; + } } Stmt::Raise(StmtRaise { exc, cause, .. }) => { if let Some(expression) = exc { @@ -904,13 +906,14 @@ impl SymbolTableBuilder { name, value, type_params, - range, + .. }) => { - if !type_params.is_empty() { + if let Some(type_params) = type_params { self.enter_scope( - &name.to_string(), + // &name.to_string(), + "TypeAlias", SymbolTableType::TypeParams, - range.start.row.get(), + self.line_index_start(type_params.range), ); self.scan_type_params(type_params)?; self.scan_expression(value, ExpressionContext::Load)?; @@ -920,13 +923,25 @@ impl SymbolTableBuilder { } self.scan_expression(name, ExpressionContext::Store)?; } + Stmt::IpyEscapeCommand(_) => todo!(), + } + Ok(()) + } + + fn scan_decorators( + &mut self, + decorators: &[Decorator], + context: ExpressionContext, + ) -> SymbolTableResult { + for decorator in decorators { + self.scan_expression(&decorator.expression, context)?; } Ok(()) } fn scan_expressions( &mut self, - expressions: &[ast::located::Expr], + expressions: &[Expr], context: ExpressionContext, ) -> SymbolTableResult { for expression in expressions { @@ -937,10 +952,10 @@ impl SymbolTableBuilder { fn scan_expression( &mut self, - expression: &ast::located::Expr, + expression: &Expr, context: ExpressionContext, ) -> SymbolTableResult { - use ast::located::*; + use ruff_python_ast::*; match expression { Expr::BinOp(ExprBinOp { left, @@ -979,16 +994,12 @@ impl SymbolTableBuilder { }) => { self.scan_expression(value, ExpressionContext::Load)?; } - Expr::Dict(ExprDict { - keys, - values, - range: _, - }) => { - for (key, value) in keys.iter().zip(values.iter()) { - if let Some(key) = key { + Expr::Dict(ExprDict { items, range: _ }) => { + for item in items { + if let Some(key) = &item.key { self.scan_expression(key, context)?; } - self.scan_expression(value, context)?; + self.scan_expression(&item.value, context)?; } } Expr::Await(ExprAwait { value, range: _ }) => { @@ -1007,7 +1018,6 @@ impl SymbolTableBuilder { }) => { self.scan_expression(operand, context)?; } - Expr::Constant(ExprConstant { range: _, .. }) => {} Expr::Starred(ExprStarred { value, range: _, .. }) => { @@ -1034,26 +1044,27 @@ impl SymbolTableBuilder { self.scan_expression(step, context)?; } } - Expr::GeneratorExp(ExprGeneratorExp { + Expr::Generator(ExprGenerator { elt, generators, range, + .. }) => { - self.scan_comprehension("genexpr", elt, None, generators, range.start)?; + self.scan_comprehension("genexpr", elt, None, generators, *range)?; } Expr::ListComp(ExprListComp { elt, generators, range, }) => { - self.scan_comprehension("genexpr", elt, None, generators, range.start)?; + self.scan_comprehension("genexpr", elt, None, generators, *range)?; } Expr::SetComp(ExprSetComp { elt, generators, range, }) => { - self.scan_comprehension("genexpr", elt, None, generators, range.start)?; + self.scan_comprehension("genexpr", elt, None, generators, *range)?; } Expr::DictComp(ExprDictComp { key, @@ -1061,12 +1072,11 @@ impl SymbolTableBuilder { generators, range, }) => { - self.scan_comprehension("genexpr", key, Some(value), generators, range.start)?; + self.scan_comprehension("genexpr", key, Some(value), generators, *range)?; } Expr::Call(ExprCall { func, - args, - keywords, + arguments, range: _, }) => { match context { @@ -1078,43 +1088,27 @@ impl SymbolTableBuilder { } } - self.scan_expressions(args, ExpressionContext::Load)?; - for keyword in keywords { + self.scan_expressions(&arguments.args, ExpressionContext::Load)?; + for keyword in &arguments.keywords { self.scan_expression(&keyword.value, ExpressionContext::Load)?; } } - Expr::FormattedValue(ExprFormattedValue { - value, - format_spec, - range: _, - .. - }) => { - self.scan_expression(value, ExpressionContext::Load)?; - if let Some(spec) = format_spec { - self.scan_expression(spec, ExpressionContext::Load)?; - } - } - Expr::JoinedStr(ExprJoinedStr { values, range: _ }) => { - for value in values { - self.scan_expression(value, ExpressionContext::Load)?; - } - } Expr::Name(ExprName { id, range, .. }) => { let id = id.as_str(); // Determine the contextual usage of this symbol: match context { ExpressionContext::Delete => { - self.register_name(id, SymbolUsage::Assigned, range.start)?; - self.register_name(id, SymbolUsage::Used, range.start)?; + self.register_name(id, SymbolUsage::Assigned, *range)?; + self.register_name(id, SymbolUsage::Used, *range)?; } ExpressionContext::Load | ExpressionContext::IterDefinitionExp => { - self.register_name(id, SymbolUsage::Used, range.start)?; + self.register_name(id, SymbolUsage::Used, *range)?; } ExpressionContext::Store => { - self.register_name(id, SymbolUsage::Assigned, range.start)?; + self.register_name(id, SymbolUsage::Assigned, *range)?; } ExpressionContext::Iter => { - self.register_name(id, SymbolUsage::Iter, range.start)?; + self.register_name(id, SymbolUsage::Iter, *range)?; } } // Interesting stuff about the __class__ variable: @@ -1123,15 +1117,27 @@ impl SymbolTableBuilder { && self.tables.last().unwrap().typ == SymbolTableType::Function && id == "super" { - self.register_name("__class__", SymbolUsage::Used, range.start)?; + self.register_name("__class__", SymbolUsage::Used, *range)?; } } Expr::Lambda(ExprLambda { - args, body, + parameters, range: _, }) => { - self.enter_function("lambda", args, expression.location().row)?; + if let Some(parameters) = parameters { + self.enter_scope_with_parameters( + "lambda", + parameters, + self.line_index_start(expression.range()), + )?; + } else { + self.enter_scope( + "lambda", + SymbolTableType::Function, + self.line_index_start(expression.range()), + ); + } match context { ExpressionContext::IterDefinitionExp => { self.scan_expression(body, ExpressionContext::IterDefinitionExp)?; @@ -1142,7 +1148,25 @@ impl SymbolTableBuilder { } self.leave_scope(); } - Expr::IfExp(ExprIfExp { + Expr::FString(ExprFString { value, .. }) => { + for expr in value.elements().filter_map(|x| x.as_expression()) { + self.scan_expression(&expr.expression, ExpressionContext::Load)?; + if let Some(format_spec) = &expr.format_spec { + for element in format_spec.elements.expressions() { + self.scan_expression(&element.expression, ExpressionContext::Load)? + } + } + } + } + // Constants + Expr::StringLiteral(_) + | Expr::BytesLiteral(_) + | Expr::NumberLiteral(_) + | Expr::BooleanLiteral(_) + | Expr::NoneLiteral(_) + | Expr::EllipsisLiteral(_) => {} + Expr::IpyEscapeCommand(_) => todo!(), + Expr::If(ExprIf { test, body, orelse, @@ -1153,7 +1177,7 @@ impl SymbolTableBuilder { self.scan_expression(orelse, ExpressionContext::Load)?; } - Expr::NamedExpr(ExprNamedExpr { + Expr::Named(ExprNamed { target, value, range, @@ -1162,9 +1186,9 @@ impl SymbolTableBuilder { // comprehension iterator definitions if let ExpressionContext::IterDefinitionExp = context { return Err(SymbolTableError { - error: "assignment expression cannot be used in a comprehension iterable expression".to_string(), - location: Some(target.location()), - }); + error: "assignment expression cannot be used in a comprehension iterable expression".to_string(), + location: Some(self.source_code.source_location(target.range().start())), + }); } self.scan_expression(value, ExpressionContext::Load)?; @@ -1180,13 +1204,13 @@ impl SymbolTableBuilder { self.register_name( id, SymbolUsage::AssignedNamedExprInComprehension, - range.start, + *range, )?; } else { // omit one recursion. When the handling of an store changes for // Identifiers this needs adapted - more forward safe would be // calling scan_expression directly. - self.register_name(id, SymbolUsage::Assigned, range.start)?; + self.register_name(id, SymbolUsage::Assigned, *range)?; } } else { self.scan_expression(target, ExpressionContext::Store)?; @@ -1199,20 +1223,20 @@ impl SymbolTableBuilder { fn scan_comprehension( &mut self, scope_name: &str, - elt1: &ast::located::Expr, - elt2: Option<&ast::located::Expr>, - generators: &[ast::located::Comprehension], - location: SourceLocation, + elt1: &Expr, + elt2: Option<&Expr>, + generators: &[Comprehension], + range: TextRange, ) -> SymbolTableResult { // Comprehensions are compiled as functions, so create a scope for them: self.enter_scope( scope_name, SymbolTableType::Comprehension, - location.row.get(), + self.line_index_start(range), ); // Register the passed argument to the generator function as the name ".0" - self.register_name(".0", SymbolUsage::Parameter, location)?; + self.register_name(".0", SymbolUsage::Parameter, range)?; self.scan_expression(elt1, ExpressionContext::Load)?; if let Some(elt2) = elt2 { @@ -1242,81 +1266,159 @@ impl SymbolTableBuilder { Ok(()) } - fn scan_type_params(&mut self, type_params: &[ast::located::TypeParam]) -> SymbolTableResult { - for type_param in type_params { + fn scan_type_params(&mut self, type_params: &TypeParams) -> SymbolTableResult { + for type_param in &type_params.type_params { match type_param { - ast::located::TypeParam::TypeVar(ast::TypeParamTypeVar { + TypeParam::TypeVar(TypeParamTypeVar { name, bound, range: type_var_range, + .. }) => { - self.register_name(name.as_str(), SymbolUsage::Assigned, type_var_range.start)?; + self.register_name(name.as_str(), SymbolUsage::Assigned, *type_var_range)?; if let Some(binding) = bound { self.scan_expression(binding, ExpressionContext::Load)?; } } - ast::located::TypeParam::ParamSpec(_) => todo!(), - ast::located::TypeParam::TypeVarTuple(_) => todo!(), + TypeParam::ParamSpec(TypeParamParamSpec { + name, + range: param_spec_range, + .. + }) => { + self.register_name(name, SymbolUsage::Assigned, *param_spec_range)?; + } + TypeParam::TypeVarTuple(TypeParamTypeVarTuple { + name, + range: type_var_tuple_range, + .. + }) => { + self.register_name(name, SymbolUsage::Assigned, *type_var_tuple_range)?; + } } } Ok(()) } - fn enter_function( + fn scan_patterns(&mut self, patterns: &[Pattern]) -> SymbolTableResult { + for pattern in patterns { + self.scan_pattern(pattern)?; + } + Ok(()) + } + + fn scan_pattern(&mut self, pattern: &Pattern) -> SymbolTableResult { + use Pattern::*; + match pattern { + MatchValue(PatternMatchValue { value, .. }) => { + self.scan_expression(value, ExpressionContext::Load)? + } + MatchSingleton(_) => {} + MatchSequence(PatternMatchSequence { patterns, .. }) => self.scan_patterns(patterns)?, + MatchMapping(PatternMatchMapping { + keys, + patterns, + rest, + .. + }) => { + self.scan_expressions(keys, ExpressionContext::Load)?; + self.scan_patterns(patterns)?; + if let Some(rest) = rest { + self.register_ident(rest, SymbolUsage::Assigned)?; + } + } + MatchClass(PatternMatchClass { cls, arguments, .. }) => { + self.scan_expression(cls, ExpressionContext::Load)?; + self.scan_patterns(&arguments.patterns)?; + for kw in &arguments.keywords { + self.scan_pattern(&kw.pattern)?; + } + } + MatchStar(PatternMatchStar { name, .. }) => { + if let Some(name) = name { + self.register_ident(name, SymbolUsage::Assigned)?; + } + } + MatchAs(PatternMatchAs { pattern, name, .. }) => { + if let Some(pattern) = pattern { + self.scan_pattern(pattern)?; + } + if let Some(name) = name { + self.register_ident(name, SymbolUsage::Assigned)?; + } + } + MatchOr(PatternMatchOr { patterns, .. }) => self.scan_patterns(patterns)?, + } + Ok(()) + } + + fn enter_scope_with_parameters( &mut self, name: &str, - args: &ast::located::Arguments, - line_number: LineNumber, + parameters: &Parameters, + line_number: u32, ) -> SymbolTableResult { // Evaluate eventual default parameters: - for default in args + for default in parameters .posonlyargs .iter() - .chain(args.args.iter()) - .chain(args.kwonlyargs.iter()) + .chain(parameters.args.iter()) + .chain(parameters.kwonlyargs.iter()) .filter_map(|arg| arg.default.as_ref()) { self.scan_expression(default, ExpressionContext::Load)?; // not ExprContext? } // Annotations are scanned in outer scope: - for annotation in args + for annotation in parameters .posonlyargs .iter() - .chain(args.args.iter()) - .chain(args.kwonlyargs.iter()) - .filter_map(|arg| arg.def.annotation.as_ref()) + .chain(parameters.args.iter()) + .chain(parameters.kwonlyargs.iter()) + .filter_map(|arg| arg.parameter.annotation.as_ref()) { self.scan_annotation(annotation)?; } - if let Some(annotation) = args.vararg.as_ref().and_then(|arg| arg.annotation.as_ref()) { + if let Some(annotation) = parameters + .vararg + .as_ref() + .and_then(|arg| arg.annotation.as_ref()) + { self.scan_annotation(annotation)?; } - if let Some(annotation) = args.kwarg.as_ref().and_then(|arg| arg.annotation.as_ref()) { + if let Some(annotation) = parameters + .kwarg + .as_ref() + .and_then(|arg| arg.annotation.as_ref()) + { self.scan_annotation(annotation)?; } - self.enter_scope(name, SymbolTableType::Function, line_number.get()); + self.enter_scope(name, SymbolTableType::Function, line_number); // Fill scope with parameter names: - self.scan_parameters(&args.posonlyargs)?; - self.scan_parameters(&args.args)?; - self.scan_parameters(&args.kwonlyargs)?; - if let Some(name) = &args.vararg { + self.scan_parameters(¶meters.posonlyargs)?; + self.scan_parameters(¶meters.args)?; + self.scan_parameters(¶meters.kwonlyargs)?; + if let Some(name) = ¶meters.vararg { self.scan_parameter(name)?; } - if let Some(name) = &args.kwarg { + if let Some(name) = ¶meters.kwarg { self.scan_parameter(name)?; } Ok(()) } + fn register_ident(&mut self, ident: &Identifier, role: SymbolUsage) -> SymbolTableResult { + self.register_name(ident.as_str(), role, ident.range) + } + fn register_name( &mut self, name: &str, role: SymbolUsage, - location: SourceLocation, + range: TextRange, ) -> SymbolTableResult { + let location = self.source_code.source_location(range.start()); let location = Some(location); let scope_depth = self.tables.len(); let table = self.tables.last_mut().unwrap(); @@ -1396,7 +1498,7 @@ impl SymbolTableBuilder { return Err(SymbolTableError { error: format!("cannot define nonlocal '{name}' at top level."), location, - }) + }); } _ => { // Ok! diff --git a/compiler/codegen/src/unparse.rs b/compiler/codegen/src/unparse.rs new file mode 100644 index 0000000000..1ecf1f9334 --- /dev/null +++ b/compiler/codegen/src/unparse.rs @@ -0,0 +1,624 @@ +use ruff_python_ast as ruff; +use ruff_text_size::Ranged; +use rustpython_compiler_source::SourceCode; +use rustpython_literal::escape::{AsciiEscape, UnicodeEscape}; +use std::fmt::{self, Display as _}; + +use ruff::{ + Arguments, BoolOp, Comprehension, ConversionFlag, Expr, Identifier, Operator, Parameter, + ParameterWithDefault, Parameters, +}; + +mod precedence { + macro_rules! precedence { + ($($op:ident,)*) => { + precedence!(@0, $($op,)*); + }; + (@$i:expr, $op1:ident, $($op:ident,)*) => { + pub const $op1: u8 = $i; + precedence!(@$i + 1, $($op,)*); + }; + (@$i:expr,) => {}; + } + precedence!( + TUPLE, TEST, OR, AND, NOT, CMP, // "EXPR" = + BOR, BXOR, BAND, SHIFT, ARITH, TERM, FACTOR, POWER, AWAIT, ATOM, + ); + pub const EXPR: u8 = BOR; +} + +struct Unparser<'a, 'b, 'c> { + f: &'b mut fmt::Formatter<'a>, + source: &'c SourceCode<'c>, +} +impl<'a, 'b, 'c> Unparser<'a, 'b, 'c> { + fn new(f: &'b mut fmt::Formatter<'a>, source: &'c SourceCode<'c>) -> Self { + Unparser { f, source } + } + + fn p(&mut self, s: &str) -> fmt::Result { + self.f.write_str(s) + } + fn p_id(&mut self, s: &Identifier) -> fmt::Result { + self.f.write_str(s.as_str()) + } + fn p_if(&mut self, cond: bool, s: &str) -> fmt::Result { + if cond { + self.f.write_str(s)?; + } + Ok(()) + } + fn p_delim(&mut self, first: &mut bool, s: &str) -> fmt::Result { + self.p_if(!std::mem::take(first), s) + } + fn write_fmt(&mut self, f: fmt::Arguments<'_>) -> fmt::Result { + self.f.write_fmt(f) + } + + fn unparse_expr(&mut self, ast: &Expr, level: u8) -> fmt::Result { + macro_rules! op_prec { + ($op_ty:ident, $x:expr, $enu:path, $($var:ident($op:literal, $prec:ident)),*$(,)?) => { + match $x { + $(<$enu>::$var => (op_prec!(@space $op_ty, $op), precedence::$prec),)* + } + }; + (@space bin, $op:literal) => { + concat!(" ", $op, " ") + }; + (@space un, $op:literal) => { + $op + }; + } + macro_rules! group_if { + ($lvl:expr, $body:block) => {{ + let group = level > $lvl; + self.p_if(group, "(")?; + let ret = $body; + self.p_if(group, ")")?; + ret + }}; + } + match &ast { + Expr::BoolOp(ruff::ExprBoolOp { + op, + values, + range: _range, + }) => { + let (op, prec) = op_prec!(bin, op, BoolOp, And("and", AND), Or("or", OR)); + group_if!(prec, { + let mut first = true; + for val in values { + self.p_delim(&mut first, op)?; + self.unparse_expr(val, prec + 1)?; + } + }) + } + Expr::Named(ruff::ExprNamed { + target, + value, + range: _range, + }) => { + group_if!(precedence::TUPLE, { + self.unparse_expr(target, precedence::ATOM)?; + self.p(" := ")?; + self.unparse_expr(value, precedence::ATOM)?; + }) + } + Expr::BinOp(ruff::ExprBinOp { + left, + op, + right, + range: _range, + }) => { + let right_associative = matches!(op, Operator::Pow); + let (op, prec) = op_prec!( + bin, + op, + Operator, + Add("+", ARITH), + Sub("-", ARITH), + Mult("*", TERM), + MatMult("@", TERM), + Div("/", TERM), + Mod("%", TERM), + Pow("**", POWER), + LShift("<<", SHIFT), + RShift(">>", SHIFT), + BitOr("|", BOR), + BitXor("^", BXOR), + BitAnd("&", BAND), + FloorDiv("//", TERM), + ); + group_if!(prec, { + self.unparse_expr(left, prec + right_associative as u8)?; + self.p(op)?; + self.unparse_expr(right, prec + !right_associative as u8)?; + }) + } + Expr::UnaryOp(ruff::ExprUnaryOp { + op, + operand, + range: _range, + }) => { + let (op, prec) = op_prec!( + un, + op, + ruff::UnaryOp, + Invert("~", FACTOR), + Not("not ", NOT), + UAdd("+", FACTOR), + USub("-", FACTOR) + ); + group_if!(prec, { + self.p(op)?; + self.unparse_expr(operand, prec)?; + }) + } + Expr::Lambda(ruff::ExprLambda { + parameters, + body, + range: _range, + }) => { + group_if!(precedence::TEST, { + if let Some(parameters) = parameters { + self.p("lambda ")?; + self.unparse_arguments(parameters)?; + } else { + self.p("lambda")?; + } + write!(self, ": {}", unparse_expr(body, self.source))?; + }) + } + Expr::If(ruff::ExprIf { + test, + body, + orelse, + range: _range, + }) => { + group_if!(precedence::TEST, { + self.unparse_expr(body, precedence::TEST + 1)?; + self.p(" if ")?; + self.unparse_expr(test, precedence::TEST + 1)?; + self.p(" else ")?; + self.unparse_expr(orelse, precedence::TEST)?; + }) + } + Expr::Dict(ruff::ExprDict { + items, + range: _range, + }) => { + self.p("{")?; + let mut first = true; + for item in items { + self.p_delim(&mut first, ", ")?; + if let Some(k) = &item.key { + write!(self, "{}: ", unparse_expr(k, self.source))?; + } else { + self.p("**")?; + } + self.unparse_expr(&item.value, level)?; + } + self.p("}")?; + } + Expr::Set(ruff::ExprSet { + elts, + range: _range, + }) => { + self.p("{")?; + let mut first = true; + for v in elts { + self.p_delim(&mut first, ", ")?; + self.unparse_expr(v, precedence::TEST)?; + } + self.p("}")?; + } + Expr::ListComp(ruff::ExprListComp { + elt, + generators, + range: _range, + }) => { + self.p("[")?; + self.unparse_expr(elt, precedence::TEST)?; + self.unparse_comp(generators)?; + self.p("]")?; + } + Expr::SetComp(ruff::ExprSetComp { + elt, + generators, + range: _range, + }) => { + self.p("{")?; + self.unparse_expr(elt, precedence::TEST)?; + self.unparse_comp(generators)?; + self.p("}")?; + } + Expr::DictComp(ruff::ExprDictComp { + key, + value, + generators, + range: _range, + }) => { + self.p("{")?; + self.unparse_expr(key, precedence::TEST)?; + self.p(": ")?; + self.unparse_expr(value, precedence::TEST)?; + self.unparse_comp(generators)?; + self.p("}")?; + } + Expr::Generator(ruff::ExprGenerator { + parenthesized: _, + elt, + generators, + range: _range, + }) => { + self.p("(")?; + self.unparse_expr(elt, precedence::TEST)?; + self.unparse_comp(generators)?; + self.p(")")?; + } + Expr::Await(ruff::ExprAwait { + value, + range: _range, + }) => { + group_if!(precedence::AWAIT, { + self.p("await ")?; + self.unparse_expr(value, precedence::ATOM)?; + }) + } + Expr::Yield(ruff::ExprYield { + value, + range: _range, + }) => { + if let Some(value) = value { + write!(self, "(yield {})", unparse_expr(value, self.source))?; + } else { + self.p("(yield)")?; + } + } + Expr::YieldFrom(ruff::ExprYieldFrom { + value, + range: _range, + }) => { + write!(self, "(yield from {})", unparse_expr(value, self.source))?; + } + Expr::Compare(ruff::ExprCompare { + left, + ops, + comparators, + range: _range, + }) => { + group_if!(precedence::CMP, { + let new_lvl = precedence::CMP + 1; + self.unparse_expr(left, new_lvl)?; + for (op, cmp) in ops.iter().zip(comparators) { + self.p(" ")?; + self.p(op.as_str())?; + self.p(" ")?; + self.unparse_expr(cmp, new_lvl)?; + } + }) + } + Expr::Call(ruff::ExprCall { + func, + arguments: Arguments { args, keywords, .. }, + range: _range, + }) => { + self.unparse_expr(func, precedence::ATOM)?; + self.p("(")?; + if let ( + [ + Expr::Generator(ruff::ExprGenerator { + elt, + generators, + range: _range, + .. + }), + ], + [], + ) = (&**args, &**keywords) + { + // make sure a single genexpr doesn't get double parens + self.unparse_expr(elt, precedence::TEST)?; + self.unparse_comp(generators)?; + } else { + let mut first = true; + for arg in args { + self.p_delim(&mut first, ", ")?; + self.unparse_expr(arg, precedence::TEST)?; + } + for kw in keywords { + self.p_delim(&mut first, ", ")?; + if let Some(arg) = &kw.arg { + self.p_id(arg)?; + self.p("=")?; + } else { + self.p("**")?; + } + self.unparse_expr(&kw.value, precedence::TEST)?; + } + } + self.p(")")?; + } + Expr::FString(ruff::ExprFString { value, .. }) => self.unparse_fstring(value)?, + Expr::StringLiteral(ruff::ExprStringLiteral { value, .. }) => { + if value.is_unicode() { + self.p("u")? + } + UnicodeEscape::new_repr(value.to_str().as_ref()) + .str_repr() + .fmt(self.f)? + } + Expr::BytesLiteral(ruff::ExprBytesLiteral { value, .. }) => { + AsciiEscape::new_repr(&value.bytes().collect::>()) + .bytes_repr() + .fmt(self.f)? + } + Expr::NumberLiteral(ruff::ExprNumberLiteral { value, .. }) => { + const { assert!(f64::MAX_10_EXP == 308) }; + let inf_str = "1e309"; + match value { + ruff::Number::Int(int) => int.fmt(self.f)?, + &ruff::Number::Float(fp) => { + if fp.is_infinite() { + self.p(inf_str)? + } else { + self.p(&rustpython_literal::float::to_string(fp))? + } + } + &ruff::Number::Complex { real, imag } => self + .p(&rustpython_literal::complex::to_string(real, imag) + .replace("inf", inf_str))?, + } + } + Expr::BooleanLiteral(ruff::ExprBooleanLiteral { value, .. }) => { + self.p(if *value { "True" } else { "False" })? + } + Expr::NoneLiteral(ruff::ExprNoneLiteral { .. }) => self.p("None")?, + Expr::EllipsisLiteral(ruff::ExprEllipsisLiteral { .. }) => self.p("...")?, + Expr::Attribute(ruff::ExprAttribute { value, attr, .. }) => { + self.unparse_expr(value, precedence::ATOM)?; + let period = if let Expr::NumberLiteral(ruff::ExprNumberLiteral { + value: ruff::Number::Int(_), + .. + }) = value.as_ref() + { + " ." + } else { + "." + }; + self.p(period)?; + self.p_id(attr)?; + } + Expr::Subscript(ruff::ExprSubscript { value, slice, .. }) => { + self.unparse_expr(value, precedence::ATOM)?; + let lvl = precedence::TUPLE; + self.p("[")?; + self.unparse_expr(slice, lvl)?; + self.p("]")?; + } + Expr::Starred(ruff::ExprStarred { value, .. }) => { + self.p("*")?; + self.unparse_expr(value, precedence::EXPR)?; + } + Expr::Name(ruff::ExprName { id, .. }) => self.p(id.as_str())?, + Expr::List(ruff::ExprList { elts, .. }) => { + self.p("[")?; + let mut first = true; + for elt in elts { + self.p_delim(&mut first, ", ")?; + self.unparse_expr(elt, precedence::TEST)?; + } + self.p("]")?; + } + Expr::Tuple(ruff::ExprTuple { elts, .. }) => { + if elts.is_empty() { + self.p("()")?; + } else { + group_if!(precedence::TUPLE, { + let mut first = true; + for elt in elts { + self.p_delim(&mut first, ", ")?; + self.unparse_expr(elt, precedence::TEST)?; + } + self.p_if(elts.len() == 1, ",")?; + }) + } + } + Expr::Slice(ruff::ExprSlice { + lower, + upper, + step, + range: _range, + }) => { + if let Some(lower) = lower { + self.unparse_expr(lower, precedence::TEST)?; + } + self.p(":")?; + if let Some(upper) = upper { + self.unparse_expr(upper, precedence::TEST)?; + } + if let Some(step) = step { + self.p(":")?; + self.unparse_expr(step, precedence::TEST)?; + } + } + Expr::IpyEscapeCommand(_) => {} + } + Ok(()) + } + + fn unparse_arguments(&mut self, args: &Parameters) -> fmt::Result { + let mut first = true; + for (i, arg) in args.posonlyargs.iter().chain(&args.args).enumerate() { + self.p_delim(&mut first, ", ")?; + self.unparse_function_arg(arg)?; + self.p_if(i + 1 == args.posonlyargs.len(), ", /")?; + } + if args.vararg.is_some() || !args.kwonlyargs.is_empty() { + self.p_delim(&mut first, ", ")?; + self.p("*")?; + } + if let Some(vararg) = &args.vararg { + self.unparse_arg(vararg)?; + } + for kwarg in args.kwonlyargs.iter() { + self.p_delim(&mut first, ", ")?; + self.unparse_function_arg(kwarg)?; + } + if let Some(kwarg) = &args.kwarg { + self.p_delim(&mut first, ", ")?; + self.p("**")?; + self.unparse_arg(kwarg)?; + } + Ok(()) + } + fn unparse_function_arg(&mut self, arg: &ParameterWithDefault) -> fmt::Result { + self.unparse_arg(&arg.parameter)?; + if let Some(default) = &arg.default { + write!(self, "={}", unparse_expr(default, self.source))?; + } + Ok(()) + } + + fn unparse_arg(&mut self, arg: &Parameter) -> fmt::Result { + self.p_id(&arg.name)?; + if let Some(ann) = &arg.annotation { + write!(self, ": {}", unparse_expr(ann, self.source))?; + } + Ok(()) + } + + fn unparse_comp(&mut self, generators: &[Comprehension]) -> fmt::Result { + for comp in generators { + self.p(if comp.is_async { + " async for " + } else { + " for " + })?; + self.unparse_expr(&comp.target, precedence::TUPLE)?; + self.p(" in ")?; + self.unparse_expr(&comp.iter, precedence::TEST + 1)?; + for cond in &comp.ifs { + self.p(" if ")?; + self.unparse_expr(cond, precedence::TEST + 1)?; + } + } + Ok(()) + } + + fn unparse_fstring_body(&mut self, elements: &[ruff::FStringElement]) -> fmt::Result { + for elem in elements { + self.unparse_fstring_elem(elem)?; + } + Ok(()) + } + + fn unparse_formatted( + &mut self, + val: &Expr, + debug_text: Option<&ruff::DebugText>, + conversion: ConversionFlag, + spec: Option<&ruff::FStringFormatSpec>, + ) -> fmt::Result { + let buffered = to_string_fmt(|f| { + Unparser::new(f, self.source).unparse_expr(val, precedence::TEST + 1) + }); + if let Some(ruff::DebugText { leading, trailing }) = debug_text { + self.p(leading)?; + self.p(self.source.get_range(val.range()))?; + self.p(trailing)?; + } + let brace = if buffered.starts_with('{') { + // put a space to avoid escaping the bracket + "{ " + } else { + "{" + }; + self.p(brace)?; + self.p(&buffered)?; + drop(buffered); + + if conversion != ConversionFlag::None { + self.p("!")?; + let buf = &[conversion as u8]; + let c = std::str::from_utf8(buf).unwrap(); + self.p(c)?; + } + + if let Some(spec) = spec { + self.p(":")?; + self.unparse_fstring_body(&spec.elements)?; + } + + self.p("}")?; + + Ok(()) + } + + fn unparse_fstring_elem(&mut self, elem: &ruff::FStringElement) -> fmt::Result { + match elem { + ruff::FStringElement::Expression(ruff::FStringExpressionElement { + expression, + debug_text, + conversion, + format_spec, + .. + }) => self.unparse_formatted( + expression, + debug_text.as_ref(), + *conversion, + format_spec.as_deref(), + ), + ruff::FStringElement::Literal(ruff::FStringLiteralElement { value, .. }) => { + self.unparse_fstring_str(value) + } + } + } + + fn unparse_fstring_str(&mut self, s: &str) -> fmt::Result { + let s = s.replace('{', "{{").replace('}', "}}"); + self.p(&s) + } + + fn unparse_fstring(&mut self, value: &ruff::FStringValue) -> fmt::Result { + self.p("f")?; + let body = to_string_fmt(|f| { + value.iter().try_for_each(|part| match part { + ruff::FStringPart::Literal(lit) => f.write_str(lit), + ruff::FStringPart::FString(ruff::FString { elements, .. }) => { + Unparser::new(f, self.source).unparse_fstring_body(elements) + } + }) + }); + // .unparse_fstring_body(elements)); + UnicodeEscape::new_repr(body.as_str().as_ref()) + .str_repr() + .write(self.f) + } +} + +pub struct UnparseExpr<'a> { + expr: &'a Expr, + source: &'a SourceCode<'a>, +} + +pub fn unparse_expr<'a>(expr: &'a Expr, source: &'a SourceCode<'a>) -> UnparseExpr<'a> { + UnparseExpr { expr, source } +} + +impl fmt::Display for UnparseExpr<'_> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + Unparser::new(f, self.source).unparse_expr(self.expr, precedence::TEST) + } +} + +fn to_string_fmt(f: impl FnOnce(&mut fmt::Formatter<'_>) -> fmt::Result) -> String { + use std::cell::Cell; + struct Fmt(Cell>); + impl) -> fmt::Result> fmt::Display for Fmt { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + self.0.take().unwrap()(f) + } + } + Fmt(Cell::new(Some(f))).to_string() +} diff --git a/compiler/core/Cargo.toml b/compiler/core/Cargo.toml index 3d05fc2734..837f9e4866 100644 --- a/compiler/core/Cargo.toml +++ b/compiler/core/Cargo.toml @@ -9,13 +9,15 @@ repository.workspace = true license.workspace = true [dependencies] -rustpython-parser-core = { workspace = true, features=["location"] } +# rustpython-parser-core = { workspace = true, features=["location"] } +ruff_source_file = { workspace = true } +rustpython-wtf8 = { workspace = true } bitflags = { workspace = true } itertools = { workspace = true } malachite-bigint = { workspace = true } num-complex = { workspace = true } -serde = { version = "1.0.133", optional = true, default-features = false, features = ["derive"] } +serde = { workspace = true, optional = true, default-features = false, features = ["derive"] } lz4_flex = "0.11" diff --git a/compiler/core/src/bytecode.rs b/compiler/core/src/bytecode.rs index c8dbc63744..e00ca28a58 100644 --- a/compiler/core/src/bytecode.rs +++ b/compiler/core/src/bytecode.rs @@ -5,22 +5,35 @@ use bitflags::bitflags; use itertools::Itertools; use malachite_bigint::BigInt; use num_complex::Complex64; -use rustpython_parser_core::source_code::{OneIndexed, SourceLocation}; +use ruff_source_file::{OneIndexed, SourceLocation}; +use rustpython_wtf8::{Wtf8, Wtf8Buf}; use std::marker::PhantomData; use std::{collections::BTreeSet, fmt, hash, mem}; -pub use rustpython_parser_core::ConversionFlag; +#[derive(Copy, Clone, Debug, Hash, PartialEq, Eq)] +#[repr(i8)] +#[allow(clippy::cast_possible_wrap)] +pub enum ConversionFlag { + /// No conversion + None = -1, // CPython uses -1 + /// Converts by calling `str()`. + Str = b's' as i8, + /// Converts by calling `ascii()`. + Ascii = b'a' as i8, + /// Converts by calling `repr()`. + Repr = b'r' as i8, +} pub trait Constant: Sized { type Name: AsRef; /// Transforms the given Constant to a BorrowedConstant - fn borrow_constant(&self) -> BorrowedConstant; + fn borrow_constant(&self) -> BorrowedConstant<'_, Self>; } impl Constant for ConstantData { type Name = String; - fn borrow_constant(&self) -> BorrowedConstant { + fn borrow_constant(&self) -> BorrowedConstant<'_, Self> { use BorrowedConstant::*; match self { ConstantData::Integer { value } => Integer { value }, @@ -40,7 +53,7 @@ impl Constant for ConstantData { /// A Constant Bag pub trait ConstantBag: Sized + Copy { type Constant: Constant; - fn make_constant(&self, constant: BorrowedConstant) -> Self::Constant; + fn make_constant(&self, constant: BorrowedConstant<'_, C>) -> Self::Constant; fn make_int(&self, value: BigInt) -> Self::Constant; fn make_tuple(&self, elements: impl Iterator) -> Self::Constant; fn make_code(&self, code: CodeObject) -> Self::Constant; @@ -65,7 +78,7 @@ pub struct BasicBag; impl ConstantBag for BasicBag { type Constant = ConstantData; - fn make_constant(&self, constant: BorrowedConstant) -> Self::Constant { + fn make_constant(&self, constant: BorrowedConstant<'_, C>) -> Self::Constant { constant.to_owned() } fn make_int(&self, value: BigInt) -> Self::Constant { @@ -197,7 +210,7 @@ impl OpArgState { } #[inline(always)] pub fn extend(&mut self, arg: OpArgByte) -> OpArg { - self.state = self.state << 8 | u32::from(arg.0); + self.state = (self.state << 8) | u32::from(arg.0); OpArg(self.state) } #[inline(always)] @@ -293,10 +306,8 @@ impl Arg { /// # Safety /// T::from_op_arg(self) must succeed pub unsafe fn get_unchecked(self, arg: OpArg) -> T { - match T::from_op_arg(arg.0) { - Some(t) => t, - None => std::hint::unreachable_unchecked(), - } + // SAFETY: requirements forwarded from caller + unsafe { T::from_op_arg(arg.0).unwrap_unchecked() } } } @@ -308,7 +319,7 @@ impl PartialEq for Arg { impl Eq for Arg {} impl fmt::Debug for Arg { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { write!(f, "Arg<{}>", std::any::type_name::()) } } @@ -331,7 +342,7 @@ impl OpArgType for Label { } impl fmt::Display for Label { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { self.0.fmt(f) } } @@ -370,6 +381,7 @@ pub type NameIdx = u32; #[derive(Debug, Copy, Clone, PartialEq, Eq)] #[repr(u8)] pub enum Instruction { + Nop, /// Importing by name ImportName { idx: Arg, @@ -418,6 +430,7 @@ pub enum Instruction { BinaryOperationInplace { op: Arg, }, + BinarySubscript, LoadAttr { idx: Arg, }, @@ -427,12 +440,20 @@ pub enum Instruction { CompareOperation { op: Arg, }, + CopyItem { + index: Arg, + }, Pop, + Swap { + index: Arg, + }, + // ToBool, Rotate2, Rotate3, Duplicate, Duplicate2, GetIter, + GetLen, Continue { target: Arg