Speed up distutils imports on Python 3.15+ by adding __lazy_modules__#414
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Speed up distutils imports on Python 3.15+ by adding __lazy_modules__#414Avasam wants to merge 3 commits into
__lazy_modules__#414Avasam wants to merge 3 commits into
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Avasam
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Jul 11, 2026
| @@ -1,9 +0,0 @@ | |||
| [flake8] | |||
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Leftover unused flake8 file
Avasam
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Jul 11, 2026
| check = [ | ||
| "pytest-checkdocs >= 2.14", | ||
| "pytest-ruff >= 0.2.1; sys_platform != 'cygwin'", | ||
| "flake8-lazy" # Until Ruff gains support for automatically inserting and validating __lazy_modules__ |
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Avasam
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Jul 11, 2026
| # tox doesn't shell-glob, so expand the file list cross-platform via Python | ||
| # and drop test dirs (lazy-import hygiene is irrelevant there). | ||
| python -c "import glob, os, subprocess, sys; \ | ||
| files = [f for f in glob.glob('distutils/**/*.py', recursive=True) if 'tests' not in f.split(os.sep)]; \ |
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This could be massively simplified with recursive globing support: henryiii/flake8-lazy#92
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Avasam
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__lazy_modules__ (auto-applied w/ flake8-lazy --apply=set)__lazy_modules__
…set --strict-typing`)
flake8-lazy ships no pytest plugin, so invoke its CLI from the primary testenv. tox does not shell-glob, so expand the file list cross-platform via Python and drop test dirs where lazy-import hygiene is irrelevant. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Alternative dynamic mode: https://flake8-lazy.readthedocs.io/en/latest/cli/#dynamic-mode
Works towards:
distutilsimport very slow setuptools#3585setuptoolsis slow and takes nearly half a second setuptools#3441The same changes would have to be done on setuptools side to close those issues. (pypa/setuptools#5257)
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