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frank-king opened this issue Aug 16, 2021 · 5 comments
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./rustpython -m dis: No code object available for dis #2889

frank-king opened this issue Aug 16, 2021 · 5 comments
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good first issue Good for newcomers

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@frank-king
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frank-king commented Aug 16, 2021 •
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Feature

dis: Disassembler for Python bytecode.

I want to should compiled bytecode for a .py script, and I got this error:

$ ./rustpython -m dis xxx.py
./rustpython: No code object available for dis

In cpython, most of the std module will be pre-compiled during build.

Python Documentation

https://docs.python.org/3.8/library/dis.html
@fanninpm
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See also #367

@coolreader18
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This is because dis is implemented as a native module, not using cpython's dis.py that's specific to their bytecode format.

@fanninpm fanninpm mentioned this issue Oct 22, 2021
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@youknowone youknowone added the good first issue Good for newcomers label Nov 28, 2021
@youknowone
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youknowone commented Nov 28, 2021 •
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I think we can move our native dis module to _dis and create our own dis.py with _test in CPython dis.py.
I am going to create dis.py in #3469, so please feel free to add actual function.

@youknowone youknowone mentioned this issue Nov 28, 2021
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I expect cargo run -- -m dis x.py works like python -m dis x.py after resolving this issue

@tai271828
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@youknowone thanks for #3469 , for me it is working like

(rustpython-session) [^_^]─[~/work-my-projects/pyconapac-2021-sprint/rustpython-session/RustPython] tai271828@syakaro: 35 file 300Kb
$ cargo run -- -m dis ./demo.py 
   Compiling rustpython-pylib v0.1.0 (/home/tai271828/work-my-projects/pyconapac-2021-sprint/rustpython-session/RustPython/vm/pylib-crate)
   Compiling rustpython-stdlib v0.1.2 (/home/tai271828/work-my-projects/pyconapac-2021-sprint/rustpython-session/RustPython/stdlib)
   Compiling rustpython-vm v0.1.2 (/home/tai271828/work-my-projects/pyconapac-2021-sprint/rustpython-session/RustPython/vm)
   Compiling rustpython v0.1.2 (/home/tai271828/work-my-projects/pyconapac-2021-sprint/rustpython-session/RustPython)
    Finished dev [unoptimized + debuginfo] target(s) in 1m 05s
     Running `target/debug/rustpython -m dis ./demo.py`
(rustpython-session) [^_^]─[~/work-my-projects/pyconapac-2021-sprint/rustpython-session/RustPython] tai271828@syakaro: 35 file 300Kb
$

tai271828 added a commit to tai271828/RustPython that referenced this issue Nov 28, 2021
@tai271828
feat(Lib): print the disassembled info
cc3445e 
Issue: RustPython#2889
@tai271828 tai271828 mentioned this issue Nov 28, 2021
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tai271828 added a commit to tai271828/RustPython that referenced this issue Nov 28, 2021
@tai271828
feat(Lib): print the disassembled info
6568c28 
Issue: RustPython#2889
tai271828 added a commit to tai271828/RustPython that referenced this issue Nov 28, 2021
@tai271828
feat(Lib): print the disassembled info
acc75de 
Issue: RustPython#2889
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@youknowone @tai271828 @frank-king @fanninpm @coolreader18