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541 B
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3 lines
541 B
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:func:`pytest.warns` now validates that warning object's ``message`` is of type `str` -- currently in Python it is possible to pass other types than `str` when creating `Warning` instances, however this causes an exception when :func:`warnings.filterwarnings` is used to filter those warnings. See `CPython #103577 <https://github.com/python/cpython/issues/103577>`__ for a discussion.
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While this can be considered a bug in CPython, we decided to put guards in pytest as the error message produced without this check in place is confusing.
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