Bug 2059950

In this copr repo, I have updated pytest to 7.0.1:

https://copr.fedorainfracloud.org/coprs/churchyard/pytest-7/

Based on this PR:

https://src.fedoraproject.org/rpms/pytest/pull-request/25

I'd like to update pytest to 7 in Fedora 37, but python-dateutil 1:2.8.1-8 fails to build.


https://copr.fedorainfracloud.org/coprs/churchyard/pytest-7/package/python-dateutil/

=================================== FAILURES ===================================
_____________________ test_parser_parser_private_not_warns _____________________

    @pytest.mark.skipif(IS_PY32, reason='pytest.warns not supported on Python 3.2')
    def test_parser_parser_private_not_warns():
        from dateutil.parser._parser import _timelex, _tzparser
        from dateutil.parser._parser import _parsetz
    
>       with pytest.warns(None) as recorder:

dateutil/test/test_internals.py:72: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = WarningsChecker(record=True), expected_warning = None, match_expr = None

    def __init__(
        self,
        expected_warning: Optional[
            Union[Type[Warning], Tuple[Type[Warning], ...]]
        ] = Warning,
        match_expr: Optional[Union[str, Pattern[str]]] = None,
        *,
        _ispytest: bool = False,
    ) -> None:
        check_ispytest(_ispytest)
        super().__init__(_ispytest=True)
    
        msg = "exceptions must be derived from Warning, not %s"
        if expected_warning is None:
>           warnings.warn(WARNS_NONE_ARG, stacklevel=4)
E           pytest.PytestRemovedIn8Warning: Passing None has been deprecated.
E           See https://docs.pytest.org/en/latest/how-to/capture-warnings.html#additional-use-cases-of-warnings-in-tests for alternatives in common use cases.

/usr/lib/python3.10/site-packages/_pytest/recwarn.py:246: PytestRemovedIn8Warning
=========================== short test summary info ============================
FAILED dateutil/test/test_internals.py::test_parser_parser_private_not_warns
============ 1 failed, 2009 passed, 47 skipped, 19 xfailed in 6.57s ============



This calls pytest.warns(None) which is not allowed see https://github.com/pytest-dev/pytest/issues/9002



There are several packages affected by this update, so I'd very much appreciate it if you could fix this failure. Please, check if your upstream hasn't already fixed it and backport the fix if possible. Report this failure to your upstream otherwise. If you need specific help, let me know.

Thanks!