python-cffi fails to build with Python 3.11.0a3.

=================================== FAILURES ===================================
___________________________ test_callback_exception ____________________________

    def test_callback_exception():
        try:
            import cStringIO
        except ImportError:
            import io as cStringIO    # Python 3
        import linecache
        def matches(istr, ipattern, ipattern38):
            if sys.version_info >= (3, 8):
                ipattern = ipattern38
            str, pattern = istr, ipattern
            while '$' in pattern:
                i = pattern.index('$')
                assert str[:i] == pattern[:i]
                j = str.find(pattern[i+1], i)
                assert i + 1 <= j <= str.find('\n', i)
                str = str[j:]
                pattern = pattern[i+1:]
            assert str == pattern
            return True
        def check_value(x):
            if x == 10000:
                raise ValueError(42)
        def Zcb1(x):
            check_value(x)
            return x * 3
        BShort = new_primitive_type("short")
        BFunc = new_function_type((BShort,), BShort, False)
        f = callback(BFunc, Zcb1, -42)
        #
        seen = []
        oops_result = None
        def oops(*args):
            seen.append(args)
            return oops_result
        ff = callback(BFunc, Zcb1, -42, oops)
        #
        orig_stderr = sys.stderr
        orig_getline = linecache.getline
        try:
            linecache.getline = lambda *args: 'LINE'    # hack: speed up PyPy tests
            sys.stderr = cStringIO.StringIO()
            if hasattr(sys, '__unraisablehook__'):          # work around pytest
                sys.unraisablehook = sys.__unraisablehook__ # on recent CPythons
            assert f(100) == 300
            assert sys.stderr.getvalue() == ''
            assert f(10000) == -42
>           assert matches(sys.stderr.getvalue(), """\
    From cffi callback <function$Zcb1 at 0x$>:
    Traceback (most recent call last):
      File "$", line $, in Zcb1
        $
      File "$", line $, in check_value
        $
    ValueError: 42
    """, """\
    Exception ignored from cffi callback <function$Zcb1 at 0x$>:
    Traceback (most recent call last):
      File "$", line $, in Zcb1
        $
      File "$", line $, in check_value
        $
    ValueError: 42
    """)

c/test_c.py:1374: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

istr = 'Exception ignored from cffi callback <function test_callback_exception.<locals>.Zcb1 at 0x7f18c40b94e0>:\nTraceback (...i-1.15.0/c/test_c.py", line 1349, in check_value\n    raise ValueError(42)\n    ^^^^^^^^^^^^^^^^^^^^\nValueError: 42\n'
ipattern = 'Exception ignored from cffi callback <function$Zcb1 at 0x$>:\nTraceback (most recent call last):\n  File "$", line $, in Zcb1\n    $\n  File "$", line $, in check_value\n    $\nValueError: 42\n'
ipattern38 = 'Exception ignored from cffi callback <function$Zcb1 at 0x$>:\nTraceback (most recent call last):\n  File "$", line $, in Zcb1\n    $\n  File "$", line $, in check_value\n    $\nValueError: 42\n'

    def matches(istr, ipattern, ipattern38):
        if sys.version_info >= (3, 8):
            ipattern = ipattern38
        str, pattern = istr, ipattern
        while '$' in pattern:
            i = pattern.index('$')
>           assert str[:i] == pattern[:i]
E           assert '\n    ^^^^' == '\n  File "'
E               
E             -   File "
E             +     ^^^^

c/test_c.py:1340: AssertionError

https://docs.python.org/3.11/whatsnew/3.11.html

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.11/fedora-rawhide-x86_64/03142518-python-cffi/

For all our attempts to build python-cffi with Python 3.11, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.11/package/python-cffi/

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 3.11:
https://copr.fedorainfracloud.org/coprs/g/python/python3.11/

Let us know here if you have any questions.

Python 3.11 is planned to be included in Fedora 37. To make that update smoother, we're building Fedora packages with all pre-releases of Python 3.11.
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.