New submission from STINNER Victor <vstin...@python.org>:
Even when no test is run, test_distutils alters the environment: $ ./python -m test -v --fail-env-changed test_distutils -m DONTEXISTS == CPython 3.7.7+ (heads/3.7:1cdc61c767, Mar 24 2020, 17:25:30) [GCC 9.2.1 20190827 (Red Hat 9.2.1-1)] == Linux-5.5.9-200.fc31.x86_64-x86_64-with-fedora-31-Thirty_One little-endian == cwd: /home/vstinner/python/3.7/build/test_python_157151 == CPU count: 8 == encodings: locale=UTF-8, FS=utf-8 0:00:00 load avg: 0.37 Run tests sequentially 0:00:00 load avg: 0.37 [1/1] test_distutils ---------------------------------------------------------------------- Ran 0 tests in 0.001s OK Warning -- warnings.filters was modified by test_distutils Before: (140048876788832, [], []) After: (140048876788832, [], [('ignore', None, <class 'pkg_resources.PEP440Warning'>, None, 0)]) test_distutils run no tests == Tests result: NO TEST RUN == 1 test run no tests: test_distutils Total duration: 655 ms Tests result: NO TEST RUN The problem comes from Lib/distutils/tests/test_check.py: "from distutils.command.check import check, HAS_DOCUTILS" imports indirectly the docutils module which imports pkg_resources. pkg_resources changes warnings filters. docutils is installed by python3-docutils-0.15.2-1.fc31.noarch package and pkg_resources comes from python3-setuptools-41.6.0-1.fc31.noarch package. Attached PR disables docutils to avoid side effects of "import docutils" like pkg_resources modifying warnings filters. ---------- components: Distutils, Tests messages: 364941 nosy: dstufft, eric.araujo, vstinner priority: normal severity: normal status: open title: test___all__ and test_distutils alters the enviroinment: pkg_resources.PEP440Warning versions: Python 3.7, Python 3.8, Python 3.9 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue40055> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com