[Python 3.13.0b3] Address a deprecated call in testing/python/fixtures.py::test_getfuncargnames_partial

[webknjaz]

================================== FAILURES ===================================
________________________ test_getfuncargnames_partial _________________________

    def test_getfuncargnames_partial():
        """Check getfuncargnames for methods defined with functools.partial (#5701)"""
        import functools
    
        def check(arg1, arg2, i):
            raise NotImplementedError()
    
        class T:
            test_ok = functools.partial(check, i=2)
    
>       values = getfuncargnames(T().test_ok, name="test_ok")
E       FutureWarning: functools.partial will be a method descriptor in future Python versions; wrap it in staticmethod() if you want to preserve the old behavior

testing\python\fixtures.py:89: FutureWarning

(https://github.com/pytest-dev/pytest/actions/runs/9745977844/job/26895224146#step:7:220)

[ghost]

Hello @webknjaz,
From the warning, one fix is to replace functools.partial(check, i=2) with staticmethod(functools.partial(check, i=2)). But this is exactly what the next test case checks for.
Do we get rid of test_getfuncargnames_partial entirely and rename test_getfuncargnames_staticmethod_partial to test_getfuncargnames_partial?

[webknjaz]

Dunno, but it seems like @Pierre-Sassoulas is about to do something about it..

[webknjaz]

Though, it'd be nice to submit that patch separately so that it could be backported easily.

[ghost]

Sure!
The change mentioned skips the tests. I guess I'll submit a patch that does the same.

[Pierre-Sassoulas]

Feel free to cherry-pick or open another MR, I think the pre-commit tool update could be merged fast, but I didn't realize that python 3.13 need to be handled on backporting branches too.

[webknjaz]

@Pierre-Sassoulas FYI you never needed to fix the 3.13 problem as those jobs are not required to pass and don't block merging. There's a flaky pypy3 job, though, that might need to be restarted occasionally (the fix is in the works).