pyinfo: Use sys.path instead of the site.getsitepackages procedure. #12530
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Fixes python#5701. * mypy/pyinfo.py (getsitepackages): Use sys.path to discover packages. * mypy/modulefinder.py (get_site_packages_dirs): Adjust accordingly. (expand_site_packages, _parse_pth_file, _make_abspath): Remove procedures. (compute_search_paths): Adjust accordingly. * mypy/main.py (process_options): Likewise.
Apteryks
changed the title
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Diff from mypy_primer, showing the effect of this PR on open source code: aiohttp (https:/aio-libs/aiohttp)
+ /tmp/mypy_primer/projects/aiohttp is in the PYTHONPATH. Please change directory so it is not.
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Thanks, closing as a duplicate of #11143 which handles more cases, passes tests, etc. |
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Fixes #5701.
(expand_site_packages, _parse_pth_file, _make_abspath): Remove procedures.
(compute_search_paths): Adjust accordingly.
I've applied this patch to the
python-mypyin GNU Guix; which continued passing its test suite. This in turned enabled the python-pytest-enabler test suite to pass for the first time; previously it would fail due to mypy being unable to locate the stubs files, even they were installed.I believe this is because mypy would only look (by default) at the Python installation site-packages directory, which in non-file hierarchy standard distributions is bound to fail.
Using
sys.pathinstead ofsite.getsitepackagesis more robust generally (it benefits from Python's site.py treatment) and avoids reinventing the wheel in mypy (such as parsing .pth files).