Bug 2351385

python-flake8-comprehensions fails to build with Python 3.14.0a5.

_____ test_C413_fail[reversed(sorted([2, 3, 1], reverse=False))-failures2] _____

code = 'reversed(sorted([2, 3, 1], reverse=False))'
failures = ['./example.py:1:1: C413 Unnecessary reversed call around sorted() - use sorted(..., reverse=True).']
flake8_path = Flake8Path('/tmp/pytest-of-mockbuild/pytest-0/flake8_path8')

    @pytest.mark.parametrize(
        "code,failures",
        [
            (
                "list(sorted([2, 3, 1]))",
                ["./example.py:1:1: C413 Unnecessary list call around sorted()."],
            ),
            (
                "reversed(sorted([2, 3, 1]))",
                [
                    "./example.py:1:1: C413 Unnecessary reversed call around sorted()"
                    + " - use sorted(..., reverse=True)."
                ],
            ),
            (
                "reversed(sorted([2, 3, 1], reverse=False))",
                [
                    "./example.py:1:1: C413 Unnecessary reversed call around sorted()"
                    + " - use sorted(..., reverse=True)."
                ],
            ),
            (
                "reversed(sorted([2, 3, 1], reverse=True))",
                [
                    "./example.py:1:1: C413 Unnecessary reversed call around sorted()"
                    + " - use sorted(..., reverse=False)."
                ],
            ),
            (
                "reversed(sorted([2, 3, 1], reverse=0))",
                [
                    "./example.py:1:1: C413 Unnecessary reversed call around sorted()"
                    + " - use sorted(..., reverse=True)."
                ],
            ),
            (
                "reversed(sorted([2, 3, 1], reverse=1))",
                [
                    "./example.py:1:1: C413 Unnecessary reversed call around sorted()"
                    + " - use sorted(..., reverse=False)."
                ],
            ),
            (
                "reversed(sorted([2, 3, 1], reverse=bool()))",
                [
                    "./example.py:1:1: C413 Unnecessary reversed call around sorted()"
                    + " - toggle reverse argument to sorted()."
                ],
            ),
            (
                "reversed(sorted([2, 3, 1], reverse=not True))",
                [
                    "./example.py:1:1: C413 Unnecessary reversed call around sorted()"
                    + " - toggle reverse argument to sorted()."
                ],
            ),
        ],
    )
    def test_C413_fail(code, failures, flake8_path):
        (flake8_path / "example.py").write_text(dedent(code))
        result = flake8_path.run_flake8()
>       assert result.out_lines == failures
E       AssertionError: assert [] == ['./example.p...verse=True).']
E         
E         Right contains one more item: './example.py:1:1: C413 Unnecessary reversed call around sorted() - use sorted(..., reverse=True).'
E         Use -v to get more diff

FAILED tests/test_flake8_comprehensions.py::test_C413_fail[reversed(sorted([2, 3, 1], reverse=False))-failures2]
FAILED tests/test_flake8_comprehensions.py::test_C413_fail[reversed(sorted([2, 3, 1], reverse=not True))-failures7]
FAILED tests/test_flake8_comprehensions.py::test_C413_fail[reversed(sorted([2, 3, 1], reverse=0))-failures4]
FAILED tests/test_flake8_comprehensions.py::test_C415_fail[reversed([2, 3, 1][::-1])-failures3]
FAILED tests/test_flake8_comprehensions.py::test_C413_fail[reversed(sorted([2, 3, 1], reverse=True))-failures3]
FAILED tests/test_flake8_comprehensions.py::test_C415_fail[sorted([2, 3, 1][::-1])-failures1]
FAILED tests/test_flake8_comprehensions.py::test_C413_fail[reversed(sorted([2, 3, 1], reverse=bool()))-failures6]
FAILED tests/test_flake8_comprehensions.py::test_C413_fail[reversed(sorted([2, 3, 1], reverse=1))-failures5]
FAILED tests/test_flake8_comprehensions.py::test_C415_fail[sorted([2, 3, 1][::-1], reverse=True)-failures2]
FAILED tests/test_flake8_comprehensions.py::test_C415_fail[set([2, 3, 1][::-1])-failures0]
======================= 10 failed, 111 passed in 15.08s ========================

https://docs.python.org/3.14/whatsnew/3.14.html

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.14/fedora-rawhide-x86_64/08739195-python-flake8-comprehensions/

For all our attempts to build python-flake8-comprehensions with Python 3.14, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.14/package/python-flake8-comprehensions/

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 3.14:
https://copr.fedorainfracloud.org/coprs/g/python/python3.14/

Let us know here if you have any questions.

Python 3.14 is planned to be included in Fedora 43.
To make that update smoother, we're building Fedora packages with all pre-releases of Python 3.14.
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.