pydeps randomly generates compiled pyc files when examine python source file about pydeps HOT 4 OPEN

Hi @ZiqianXu and thank you for your interest in Pydeps.

This is indeed an artifact of how modulefinder and Python works. modulefinder is a Python standard module that pydeps uses to find the importgraph, see https://docs.python.org/3/library/modulefinder.html

I'm not aware of any hooks to prevent saving .pyc files (https://github.com/python/cpython/blob/main/Lib/modulefinder.py)

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Hey @thebjorn, thanks for the quick response!

But what's the reason for .pyc only generated for some python files like pyyaml but not for other packages like cffi?

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I'm guessing because it's mostly written in C...?

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Hey @thebjorn, I think the compiled .pyc for yaml created when yaml is imported in pydeps. Somehow python module loader fails to compile to the system python directory(like /usr/local/lib/python3.8/dist-packages/yaml/) but the current yaml directory( like /tmp/testDir/yaml/)

So the issue is not about compiled .pyc got created when finding imports, but it's created in the wrong directory.

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