Bug 2275086

python-papermill fails to build with pytest 8.

=================================== FAILURES ===================================
_____________ TestPapermillIO.test_read_with_valid_file_extension ______________
[gw0] linux -- Python 3.12.2 /usr/bin/python3

self = <papermill.tests.test_iorw.TestPapermillIO testMethod=test_read_with_valid_file_extension>

    def test_read_with_valid_file_extension(self):
>       with pytest.warns(None) as warns:

papermill/tests/test_iorw.py:150: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

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

    def __init__(
        self,
        expected_warning: 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 isinstance(expected_warning, tuple):
            for exc in expected_warning:
                if not issubclass(exc, Warning):
                    raise TypeError(msg % type(exc))
            expected_warning_tup = expected_warning
        elif isinstance(expected_warning, type) and issubclass(
            expected_warning, Warning
        ):
            expected_warning_tup = (expected_warning,)
        else:
>           raise TypeError(msg % type(expected_warning))
E           TypeError: exceptions must be derived from Warning, not <class 'NoneType'>

/usr/lib/python3.12/site-packages/_pytest/recwarn.py:285: TypeError
=========================== short test summary info ============================
FAILED papermill/tests/test_iorw.py::TestPapermillIO::test_read_with_valid_file_extension
=========== 1 failed, 496 passed, 2 skipped, 692 warnings in 27.69s ============

https://docs.pytest.org/en/stable/changelog.html

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/thrnciar/pytest/fedora-rawhide-x86_64/07248498-python-papermill/

For all our attempts to build python-papermill with pytest 8, see:
https://copr.fedorainfracloud.org/coprs/thrnciar/pytest/package/python-papermill/

Let us know here if you have any questions.

Pytest 8 is planned to be included in Fedora 41. And this bugzilla is a
heads up before we merge new pytest into rawhide. For more info see a Fedora Change
proposal https://fedoraproject.org/wiki/Changes/Pytest_8

We'd appreciate help from the people who know this package best,
but if you don't want to work on this now, let us know so we can try to work around it on our side.