typing-extensions 4.2.0 test fails on Python 3.11.0a7

[hegjon]

=================================== FAILURES ===================================
_____________________ OverloadTests.test_overload_registry _____________________
/usr/lib64/python3.11/unittest/mock.py:1356: in patched
    with self.decoration_helper(patched,
/usr/lib64/python3.11/contextlib.py:137: in __enter__
    return next(self.gen)
/usr/lib64/python3.11/unittest/mock.py:1338: in decoration_helper
    arg = exit_stack.enter_context(patching)
/usr/lib64/python3.11/contextlib.py:499: in enter_context
    result = _enter(cm)
/usr/lib64/python3.11/unittest/mock.py:1427: in __enter__
    original, local = self.get_original()
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <unittest.mock._patch object at 0x7fb2d2b3a490>

    def get_original(self):
        target = self.getter()
        name = self.attribute
    
        original = DEFAULT
        local = False
    
        try:
            original = target.__dict__[name]
        except (AttributeError, KeyError):
            original = getattr(target, name, DEFAULT)
        else:
            local = True
    
        if name in _builtins and isinstance(target, ModuleType):
            self.create = True
    
        if not self.create and original is DEFAULT:
>           raise AttributeError(
                "%s does not have the attribute %r" % (target, name)
            )
E           AttributeError: <module 'typing' from '/usr/lib64/python3.11/typing.py'> does not have the attribute '_overload_registry'

/usr/lib64/python3.11/unittest/mock.py:1400: AttributeError
=========================== short test summary info ============================
FAILED src/test_typing_extensions.py::OverloadTests::test_overload_registry
=================== 1 failed, 224 passed, 1 skipped in 0.44s ===================

See more details here: https://bugzilla.redhat.com/show_bug.cgi?id=2080868

[JelleZijlstra]

It should work with beta 1, which is scheduled for Friday. Is it important to you to make it work specifically with a7?

[hegjon]

Is it important to you to make it work specifically with a7?

No. Python 3.11 is planned to be included in Fedora 37 (november 2022). To make that update smoother, we're building Fedora packages with pre-releases of Python 3.11. So I assume that the test will be disabled until we are building with beta 1.

[JelleZijlstra]

Makes sense. I think the runtime actually works fine because we do hasattr(typing, "get_overloads") there; it's just the test that fails because there we check for 3.11 only.

[hegjon]

I confirm that it builds with Python 3.11 beta1 https://copr.fedorainfracloud.org/coprs/g/python/python3.11/build/4411663/