Documentation

Python 3.14 has a change that "A single dot (”.”) is considered a valid suffix."

This is not listed inpathlib.PurePath.stem documentation.
But Python 3.14 changes whatstem returns because single dot is considered a valid suffix.

Python 3.14:

>>> PurePosixPath('my/library.').stem'library'

Python 3.13:

>>> PurePosixPath('my/library.').stem'library.'

Linked PRs

• gh-140490: Document versionchanged for PurePath.stem in Python 3.14 #144450