Errors with example calling Python from .NET #249
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@ShoTskii I found the version that was working. It actually took me few hours! This used to work in 2013: It looks like this was originally implemented by @patstew and then merged by @tonyroberts. (f3ff88d) If you are willing to write tests (preferrably without numpy dependency, just using built-in array.array), or find exactly which version broke this (somewhere around 2013-2014), then please let me know, so that we can assist you, since I consider this feature pretty important.
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There is a marginally less ancient branch that worked (as far as I remember) here: https://github.com/patstew/pythonnet |
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@patstew can you also explain why arithmetic is implemented like this? |
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It's been a while, but as far as I remember it's a limitation of Microsoft's DynamicObject API. They only override the operations for TryBinaryOperation where the DynamicObject is first. I believe you could fix it by using the lower-level DynamicMetaObject, but using that API requires a load more code. |
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Oh, I see that this is DLR limitation, and confirmed by MS team. The http://stackoverflow.com/questions/2075649/dynamicobject-implicit-casting Here is the issue I was getting before for exactly this reason: On Tue, Aug 23, 2016 at 12:17 PM, patstew notifications@github.com wrote:
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@denfromufa it looks like you may be looking in to this already. I can try to narrow down where this broke. I agree it is an important feature. I can't commit to when I will be able to start looking at this however. Hopefully soon. |
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Does this prevent normal |
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I believe implicit operator does not work and please open a separate issue http://www.voidspace.org.uk/ironpython/dark-corners.shtml#implicit-conversion On Tue, Aug 30, 2016 at 11:05 PM, Andy De George notifications@github.com
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@denfromufa I found out today that |
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I got this issue fixed, I'll merge in the fix after |
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It requires some changes to the converter thats why I'm holding it off till next release since we already have a couple changes to converter/method override on this release. |
vmuriart
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Generic Lists were falling through and being classified as `typecode.Object` To solve this, adding a specific processing branch for `Generic Lists` only to avoid breaking the changes from 471673a Closes pythonnet#249
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#427 will fix this in case anyone wants to review |
yagweb
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* Fix numpy array and README example Generic Lists were falling through and being classified as `typecode.Object` To solve this, adding a specific processing branch for `Generic Lists` only to avoid breaking the changes from 471673a Closes pythonnet#249 * Update syntax
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* Sanitize how to run tests * Remove unsupported entry points * Adds reference to Python.Test by default for all tests * Remove redundant add_reference * Avoid some implicit AddReferences that were being done Not all tests added reference to Python.Test consistently. Solve this by making `run_test` the only supported method. * Remove dependency on six Remove six.u(...), six.b(...) Not needed since dropped older python versions * Clean-up imports - Fix py2/py3 range/zip behavior - Ensure same functions being used - Fix Exception/System.Exception name clashes * Fix nameclash object * Refactor utility functions * Rename tests * Refactor assertRaises test_exceptions: Add exc_info test & fix Exception nameclash * Format for pep8 and linters Fix max min nameclash * Fix tests comparison to None, True, False, isinstance - Replace type(()) with tuple to clarify intent * Rename test fixtures Can mess with test discovery * Remove unused `using` from testing and format * Use unittest.skip(...) * Cleanup testing format * XML Docs on test fixtures * Update CHANGELOG * Implement Py.SetArgv. * Add a `Py.Throw` function. Checks whether an error occurred and in case it has throws a PythonException. * Add overload for Initialize to pass specific args. * Allow the engine to be initialized as a Disposable. * Use Py.Throw in a few more places. In particular in Py.Import. * Add PY3.7 to travis with allow_failure * Format & Whitespace *.cs linelength 120 Allman * Update CHANGELOG * Change applicable comments to xml-docs * Update API website on docs & fix section headers Runtime.cs section headers got changed to docs. * Alias root.pyHandle to py_clr_module * Syntax cleanup * Simple classes cleanup (pythonnet#348) * Standarize properties used across projects Console had it owns set of properties going on * Add pyproj from @denfromufa Corrected the configs, won't interfere with users without PTVS * Consolidate output paths http://stackoverflow.com/questions/30191387/what-are-the-consequences-of-setting-same-output-path-for-all-configurations * Fix clrmodule config mismapping * Add PY3 project/sln configs * Update test PyImport path Changed when consolidate output paths * Update runtime.csproj * Documentation clean-up * Downgrade to nunit2 * Syntax cleanup * Update CHANGELOG * Clarify pynetinit.c, runtime build directives pynetinit.c: Clarifiy its intent is for PY3 runtime.cs Remove unnecessary check for System.Text Simplifies import section * Whitespace converter.cs * Propercase AssemblyInfo * Refactor nativemethods * Rename `is32bit` to `Is32Bit` for naming consistency * Replace UCS2/UCS4 build directive with Runtime.UCS * Add IsPython2 and IsPython3 * Cleanup runtime config * Remove extra properties/Organize properties * Refactor property conditions * Order Runtime.csproj configuration To make it easier to verify everything is setup correctly Simplified the Mono.Unix include condition * Add pylong lost unit test Wasn't being referenced in the project * Replace #if DEBUG with conditional attribute * Fix and disable StrongNameSigning It works better if they key is in the right folder and its being referenced when signing. 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Filter removes coverage from Embedded test files by focusing only on types of Python.Runtime.* * Remove check-manifest * Add overload tests from pythonnet#131 * Refactor converter.cs & methodbind*.cs (pythonnet#375) * Cleanup/Comment Python.Runtime.dll.config & travis We don't need the `*.dll` variant since we don't call for those in `runtime.cs` Enable embedded tests on travis * Add LD_LIBRARY_PATH to travis env Find dlls for embedded tests on PY3 * Find dll for PY2 travis embedded tests Copy Python.Runtime.dll.config to embedded tests bin output * Generalize LD_LIBRARY_PATH Avoid having to manually update python/travis versions * Add GetPrecedence reference * Use builtin miniconda * Update version (pythonnet#379) * Update setup.py * Update clr.py * StackOverflow/Slack shields (pythonnet#384) Add StackExchange and Slack shields Shields got too long for a single line, had to break them up into two lines. One for build/quality status, the other for social/info. 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Any time the csproj is update (new test for example) it splits them. Splitting them now to not worry about them when reviewing pull_requests. * Update CHANGELOG * Fix PythonException GC (pythonnet#400) Since PythonException doesn't inherit from PyObject, need to reapply the same fix as from gh:365. Seen mostly on PY27/Travis on PyTuple tests. Enable PyTuple tests for PY27/Travis * Add Eval(...) and Exec(...) * Keep RunString Public. Fix Assert.AreEqual order - Deprecation/Removal should be a separate issue/pr - In NUnit/XUnit, expected is the first argument, actual is second. Opposite to how Python does it * Update CHANGELOG * Clarify MashalAs on runtime.cs - Shorten MarshalAsAttribute name - Put MashalAs'ed argument on own-line - Flip IF comparison * Fix runtime Initialize dll nameclash Looks like dllLocal never changes from IntPtr.Zero * Update test_sysargv Previous version didn't test correctly * Fix the issue of sys.argv being cleared on import clr. Closes pythonnet#404. * improve tests.pyproj for intellisense and running tests (pythonnet#395) * Update tests.pyproj * Update folder structure After pytest folders were flatten. Add code in fixture Upstream PyImportTest was moved to within Embedded Tests Add pyproj to editorconfig * Add case-sensitivity tests closes #81 * Added branching for ldd command in OSX (pythonnet#406) * Minor style clean-up runtime/pythonengine Add missing brackets Organize using/remove unused Align arguments * Fix Py_Main/PySys_SetArgvEx(...) UCS4/PY3 no mem Based on @dmitriyse work on: dmitriyse@8a70f09 * Update CHANGELOG, remove extra MarshalAs * Move PythonBuildDir when not defined Keep root of solution clean and out of the way from being imported because its on the `cwd`. * Update ARCH check Use sys for x86/x64 check * Enable TestPyTupleInvalidAppend test `AppDomain unload` was solved by pythonnet#400. Closes pythonnet#397. Possibly also solved pythonnet#245. * Add tests/refactor existing * Set language version to 6 Prevent accidental introduction of csharp 7 features. * Add ICustomMarshaler StrMarshaler Useful resources https://msdn.microsoft.com/en-us/library/system.runtime.interopservices.icustommarshaler(v=vs.110).aspx https://limbioliong.wordpress.com/2013/11/03/understanding-custom-marshaling-part-1/ https://github.com/mono/mono/blob/master/mcs/class/Mono.Posix/Mono.Unix/UnixMarshal.cs http://stackoverflow.com/a/33514037/5208670 * Add ICustomMarshaler StrArrayMarshaler * Refactor Marshals * Add ICustomMarshaler Utf8Marshaler Refactor PyString_FromStringAndSize Link explains why `MarshalAs(UnmanagedType.LPWStr)` or `CharSet.Unicode` don't work http://stackoverflow.com/a/25128147/5208670 * Match PyUnicode_AsUnicode signature in UCS2/UCS4 * Refactor GetManagedString * Remove internal PyUnicode_AS_UNICODE Its redundant with PyUnicode_AsUnicode now that the signature is fixed between UCS2/UCS4. Apply char conversion that work on both UCS2/UCS4 * Refactor Encoding check This won't change during runtime. * Remove ExactSpelling Not needed as Python doesn't define character specific functions https://msdn.microsoft.com/en-us/library/system.runtime.interopservices.dllimportattribute.exactspelling(v=vs.110).aspx * Remove CharSet.Ansi Its default charset used https://msdn.microsoft.com/en-us/library/system.runtime.interopservices.dllimportattribute.charset(v=vs.110).aspx#Anchor_1 * Remove CharSet.Unicode where not needed CharSet.Unicode is only needed when args are string type. https://msdn.microsoft.com/en-us/library/system.runtime.interopservices.dllimportattribute.charset(v=vs.110).aspx * Remove CallingConvention * Rename Runtime field `dll` to `PythonDll` Add remove full qualification * Remove unneeded unsafe keyword * Update CHANGELOG * Add Runtime.CheckExceptionOccurred(...) Helps refactor exceptions checks * Replace Py.Throw with Runtime.CheckExceptionOccurred * Whitespace clean-up Runtime * Apply consistent name qualification to runtime.cs * Unify PY3 UCS2/UCS4 unicode methods CustomMarshal implementation deals w UCS2/4 differences * Unify PY2 UCS2/UCS4 unicode methods PyUnicodeEntryPoint is not used for PY3 since it was unified by PEP393. It could be defined as "PyUnicode_" for PY3 and further unify the code between PY2/PY3. Not implementing since not all PY3 methods exist in PY2 * Rename internal methods to proper Python API name - PyUnicode_FromKindAndString to PyUnicode_FromKindAndData - PyString_AS_STRING to PyString_AsString * Fix PY27 dll mapping in Linux/macOS On 5062377 this was fixed for PY3 but left unchanged for PY2. On linux/macOS the library is aliased `python2.7` while in windows its `python 27`. Since internally it wasn't mapped to the correct library in Linux/macOS, we had to remap it again using the dll.config file. Closes pythonnet#120 * Refactor runtime's dllBase As long as the API doesn't change on new python minor releases, all changes needed for new minor versions is isolated to a small section of code. * Style clean-up runtime.cs * Temporary disable Codecov flags Codecov added a limit of 20 uploads due to current on-going bug https://docs.codecov.io/blog/week-8-2017 Also fixed flags casing, documentations says has to be lowercase. * Fix test_multiple_calls_to_initialize Exception check didn't upgrade syntax from unittests. Didn't cause issues because test was passing. * Fix PythonEngine.Version Add TestPythonEngineProperties. Ensure PythonEngine properties are working correctly. Currently only work on 32bit machines. Closes pythonnet#413 * Add PYTHONPATH/PYTHONHOME default value tests Current tests crash on 64bit python on windows, and results get truncated on Linux. When working, PYTHONHOME should match ENV VAR if set. AppVeyor has been updated to test against not blank * Fix get PYTHONHOME/PYTHONPATH marshal Unlike pythonnet#413, the return type changes between PY2/PY3. Extended Custom Marshaler to convert IntPtr to Unicode String * Rename internal StrMarshaler to UcsMarshaler To clarify that this is meant to be applied on Unicode type IntPtr and not strings like ones. Made Marshalers internal, don't see a reason to expose it. * Unset PYTHONHOME in AppVeyor Its messing with `conda` causing it to fail to start. Tests in the `pr` pythonnet#415 make this unnecessary. * Update conda Update to using conda based on PY36. Remove reference to deleted `dll.config` file * Fix PythonEngine PYTHONHOME setter Keep memory reference & fix PY3 marshal * Fix set PythonPath, set ProgramName Note on PythonPath. Its actually mapping to `Py_SetPath` which is very different from PYTHONPATH env var. There is no test on it because it should be set to real paths with libraries. Otherwise it crashes. 2nd Note. `Py_SetPath` doesn't exist on PY27. * Deprecate public RunString Had to remove defaults to disambiguate call on `internal RunString`. Can re-add after removing `public RunString` Closes pythonnet#401 * Combine Py_DEBUG and PYTHON_WITH_PYDEBUG flags They both refer to the PyDebug builds but were added at different times. Closes pythonnet#362 * Remove PYTHON_WITH_WIDE_UNICODE flag ABIFlags were introduced in PY32, and --with_wide_unicode was removed in PY33. https://docs.python.org/3/whatsnew/3.3.html#functionality Closes pythonnet#417 * Refactor PY2/PY3 Marshal in/out String/Unicode * Refactor runtime.cs * Fix Py_SetPath not available in PY2 Closes pythonnet#418 * Calculate Runtime fields before Initialization * Add timing to detect slow tests on pytest * Rename test classes/files Make it easier to distinguish if editor tab refers to class or test. * Add PyTuple Ctor tests * Define and document Py_IncRef/Py_DecRef * Add Tests * Refactor Exception checking on tested classes * Clean-up Embedded tests * Add PyList tests * Add test for pyscript global variable casting Test for pythonnet#420 * Clean-up README.md example * Fix typo in README * Update CHANGELOG.md * Bump version: 2.3.0.dev1 → 2.3.0 release * Bump version: 2.3.0.→ 2.4.0.dev0 Can't start at dev1 as bumpversion breaks if we add a minimum start version for dev. * Build conda recipe on new tags Ensure that new binaries are generated for releases which are usually not from pull_requests. Using APPVEYOR_REPO_TAG_NAME because yields shorter syntax because it's undefined (ie false) when not a tag and APPVEYOR_REPO_TAG has to be compared to lowercase `true` instead of `True` like everything else. Definitions: APPVEYOR_REPO_TAG_NAME - contains tag name for builds started by tag; otherwise this variable is undefined; APPVEYOR_REPO_TAG - true if build has started by pushed tag; otherwise false; https://www.appveyor.com/docs/environment-variables/ * Fix numpy array and README example (pythonnet#427) * Fix numpy array and README example Generic Lists were falling through and being classified as `typecode.Object` To solve this, adding a specific processing branch for `Generic Lists` only to avoid breaking the changes from 471673a Closes pythonnet#249 * Update syntax * Msbuild15 patch (pythonnet#435) * Update AUTHORS.md * Update CHANGELOG.md * Update setup.py * Update bld.bat * Create .mention-bot * WPF DynamicGrid python and XAML layout files (pythonnet#280) * Support clr.GetClrType() - as in IronPython (pythonnet#433) * Support clr.GetClrType() - as in IronPython Implements pythonnet#432 * Tests for clr.GetClrType() * clr.GetClrType test: ensure bad type raises ArgumentException * clr.GetClrType - added xml doc comment, updated AUTHORS.md and CHANGELOG.md * Simplified implementation of clr.GetClrType (taken from IronPython) * Update .mention-bot * Update .mention-bot * Re-add CallingConvention Closes pythonnet#448 * Allow passing None for nullable args (pythonnet#460) * Updated CHANGELOG and AUTHORS (pythonnet#462) * Fixing Travis CI for mono 5.0 (pythonnet#471) * Fixing setup.py with mono 5.0 * Go back to xbuild * Trying to figure out the error cause. Apparently xbuild cannot process the Copy section of the pdb file in the projects. I have commented them out for now, but this is not a real soltion since they are needed in debug versions. Just to se if it fixes the CI. * Implement named arguments and With semantics in C# embedding side (pythonnet#461) * Added python "with" construction * Added some unit tests for new With method * Renamed With tests for easier grouping * Support for named arguments to invoke python methods * Named argument tests cosmetic changed * Fixed failing test in python 2.7 * Reset line endings in csproj to LF * Implements Decimal and Datetime support
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When trying to run the numpy example from the Readme file I see the following error:
TypeError : long() argument must be a string or a number, not '0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]'
This seems to be cause by the Py.kw function call. However, the numpy.array does not seem to be working properly. The console output looks like this:
This is from using the latest master branch and Python 2.7. Has the array handling changed recently?
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