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pathlib.PurePath.with_stem('') promotes file extension to stem #114610

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pathlib.PurePath.with_stem('') promotes file extension to stem#114610
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3.11only security fixes3.12only security fixes3.13only security fixestopic-pathlibtype-bugAn unexpected behavior, bug, or error

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@barneygale
barneygale
opened on Jan 26, 2024

Bug report

>>> pathlib.PurePath('foo.jpg').with_stem('').stem
'.jpg'

The with_stem() call should raise ValueError, as it's impossible for a filename to have an empty stem and a non-empty suffix.

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    3.11only security fixes3.12only security fixes3.13only security fixestopic-pathlibtype-bugAn unexpected behavior, bug, or error

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