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Twisted: Incompability with pytest.skip and Twisted 25.5 #13497

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@nicoddemus

Description

@nicoddemus

The recently released twisted 25.5.0 is causing the test test_trial_exceptions_with_skips to fail:

https://github.com/pytest-dev/pytest/actions/runs/15509383216/job/43668300225?pr=13496

Created this MWE:

from __future__ import annotations

from twisted.trial import unittest

import pytest


class TC(unittest.TestCase):
    def test_hello(self):
        pytest.skip("skip_in_method")
λ uvx --with pytest,twisted==24.11 pytest testing\test_trial.py -q
s                                                                                                                                                                                                         [100%]
1 skipped in 0.13s
λ uvx --with pytest,twisted==25.5 pytest testing\test_trial.py -q
F                                                              [100%]
============================= FAILURES ==============================
___________________________ TC.test_hello ___________________________
skip_in_method

During handling of the above exception, another exception occurred:
'NoneType' object is not iterable

During handling of the above exception, another exception occurred:
NOTE: Incompatible Exception Representation, displaying natively:

Skipped: skip_in_method

====================== short test summary info ======================
FAILED testing/test_trial.py::TC::test_hello - Failed: NOTE: Incompatible Exception Representation, displaying n...
1 failed in 0.14s

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