pytest fails to build with Python 3.10.0a7.

=================================== FAILURES ===================================
_____________________________ test_run_result_repr _____________________________

    def test_run_result_repr() -> None:
        outlines = ["some", "normal", "output"]
        errlines = ["some", "nasty", "errors", "happened"]
    
        # known exit code
        r = pytester.RunResult(1, outlines, errlines, duration=0.5)
>       assert (
            repr(r) == "<RunResult ret=ExitCode.TESTS_FAILED len(stdout.lines)=3"
            " len(stderr.lines)=4 duration=0.50s>"
        )
E       AssertionError: assert '<RunResult r...ration=0.50s>' == '<RunResult r...ration=0.50s>'
E         - <RunResult ret=ExitCode.TESTS_FAILED len(stdout.lines)=3 len(stderr.lines)=4 duration=0.50s>
E         ?                ---------
E         + <RunResult ret=TESTS_FAILED len(stdout.lines)=3 len(stderr.lines)=4 duration=0.50s>

testing/test_pytester.py:744: AssertionError
________________________ TestMetafunc.test_idmaker_enum ________________________

self = <metafunc.TestMetafunc object at 0x7f7f78c9be50>

    def test_idmaker_enum(self) -> None:
        enum = pytest.importorskip("enum")
        e = enum.Enum("Foo", "one, two")
        result = idmaker(("a", "b"), [pytest.param(e.one, e.two)])
>       assert result == ["Foo.one-Foo.two"]
E       AssertionError: assert ['one-two'] == ['Foo.one-Foo.two']
E         At index 0 diff: 'one-two' != 'Foo.one-Foo.two'
E         Use -v to get the full diff

testing/python/metafunc.py:451: AssertionError
=========================== short test summary info ============================
SKIPPED [1] testing/test_capture.py:1433: only on windows
SKIPPED [1] testing/test_pathlib.py:420: Windows only
SKIPPED [1] testing/test_tmpdir.py:238: win only
SKIPPED [1] testing/test_config.py:1790: does not work with xdist currently
SKIPPED [1] testing/test_conftest.py:291: only relevant for case insensitive file systems
SKIPPED [1] testing/test_unittest.py:1235: could not import 'asynctest': No module named 'asynctest'
SKIPPED [3] testing/test_warnings.py:514: This test should be enabled again before pytest 7.0 is released
SKIPPED [1] testing/test_faulthandler.py:52: sometimes crashes on CI (#7022)
====== 2 failed, 3031 passed, 10 skipped, 10 xfailed in 202.60s (0:03:22) ======

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.10/fedora-rawhide-x86_64/02129345-pytest/

For all our attempts to build pytest with Python 3.10, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.10/package/pytest/

Testing and mass rebuild of packages is happening in copr. You can follow these instructions to test locally in mock if your package builds with Python 3.10:
https://copr.fedorainfracloud.org/coprs/g/python/python3.10/

Let us know here if you have any questions.

Python 3.10 will be included in Fedora 35. To make that update smoother, we're building Fedora packages with early pre-releases of Python 3.10.
A build failure prevents us from testing all dependent packages (transitive [Build]Requires), so if this package is required a lot, it's important for us to get it fixed soon.
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.