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mach-nix/pypi-crawlers/debug/Readme.md

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Debugging dependency extraction for a single package

  • Extraction uses a modified python interpreter which must also be used for debugging. It is available from ./src/extractor/default.nix as attributes (py27, py35, py36, ...). Either build it via nix-build ./src/extractor -A py37 for example or use nix-shell.
  • Find the sdist release of the package you want to debug on pypi.org, download and unpack it.
  • Copy the ./debug/setuptools_call.py of this project to the unpacked source to the same directory the setup.py is in. Execute setuptools_call.py from there.
  • You can use a debugger and set breakpoints in setup.py.