Test collection failing since pytest 8.1 #259
Description
Two months ago, on pytest 8.0.2, tests were passing.
Now, on Python 3.11 and earlier, tests are failing.
On pytest 8.2, test collection fails:
_________________________________________________ ERROR collecting distutils/cygwinccompiler.py __________________________________________________
ImportError while importing test module '/Users/jaraco/code/pypa/distutils/distutils/cygwinccompiler.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
distutils/cygwinccompiler.py:27: in <module>
from .version import LooseVersion, suppress_known_deprecation
E ImportError: cannot import name 'suppress_known_deprecation' from 'distutils.version' (/opt/homebrew/Cellar/python@3.11/3.11.9/Frameworks/Python.framework/Versions/3.11/lib/python3.11/distutils/version.py)
____________________________________________ ERROR collecting distutils/tests/test_cygwinccompiler.py ____________________________________________
ImportError while importing test module '/Users/jaraco/code/pypa/distutils/distutils/tests/test_cygwinccompiler.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
distutils/tests/test_cygwinccompiler.py:6: in <module>
from distutils.cygwinccompiler import (
E ImportError: cannot import name 'CONFIG_H_NOTOK' from 'distutils.cygwinccompiler' (/Users/jaraco/code/pypa/distutils/distutils/cygwinccompiler.py)
_____________________________________________ ERROR collecting distutils/tests/test_unixccompiler.py _____________________________________________
ImportError while importing test module '/Users/jaraco/code/pypa/distutils/distutils/tests/test_unixccompiler.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
distutils/tests/test_unixccompiler.py:10: in <module>
from distutils.util import _clear_cached_macosx_ver
E ImportError: cannot import name '_clear_cached_macosx_ver' from 'distutils.util' (/opt/homebrew/Cellar/python@3.11/3.11.9/Frameworks/Python.framework/Versions/3.11/lib/python3.11/distutils/util.py)
Additionally, a warning is emitted about importing distutils from stdlib:
<frozen importlib.util>:95
<frozen importlib.util>:95: DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use setuptools or check PEP 632 for potential alternatives
../../../../../opt/homebrew/Cellar/python@3.11/3.11.9/Frameworks/Python.framework/Versions/3.11/lib/python3.11/distutils/util.py:92
/opt/homebrew/Cellar/python@3.11/3.11.9/Frameworks/Python.framework/Versions/3.11/lib/python3.11/distutils/util.py:92: DeprecationWarning: The distutils.sysconfig module is deprecated, use sysconfig instead
import _osx_support, distutils.sysconfig
-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
Pinning to pytest 8.1, the collection succeeds, but the tests fail when they end up importing distutils from the stdlib. For example:
___________________________________________________________ TestMetadata.test_provides ___________________________________________________________
self = <distutils.tests.test_dist.TestMetadata object at 0x103adb950>
def test_provides(self):
attrs = {
"name": "package",
"version": "1.0",
"provides": ["package", "package.sub"],
}
> dist = Distribution(attrs)
distutils/tests/test_dist.py:285:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
distutils/dist.py:259: in __init__
getattr(self.metadata, "set_" + key)(val)
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
self = <distutils.dist.DistributionMetadata object at 0x103f7ce10>, value = ['package', 'package.sub']
def set_provides(self, value):
value = [v.strip() for v in value]
for v in value:
import distutils.versionpredicate
> distutils.versionpredicate.split_provision(v)
E AttributeError: module 'distutils' has no attribute 'versionpredicate'
distutils/dist.py:1266: AttributeError
Pinning to pytest<8.1 allows the tests to pass again.