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[3.13] GH-119113: Raise TypeError from pathlib.PurePath.with_suffix(None) (GH-119124) (#119183)

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Restore behaviour from 3.12 when `path.with_suffix(None)` is called.
(cherry picked from commit 3c28510b98)

Co-authored-by: Barney Gale <barney.gale@gmail.com>
This commit is contained in:
Miss Islington (bot) 2024-05-19 18:27:12 +02:00 • committed by GitHub
parent fdc50bac16
commit 27b61c17a1
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3 changed files with 9 additions and 7 deletions
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10
Lib/pathlib/_abc.py
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@ -225,15 +225,13 @@ class PurePathBase:
string, remove the suffix from the path.
"""
stem = self.stem
if not suffix:
return self.with_name(stem)
elif not stem:
if not stem:
# If the stem is empty, we can't make the suffix non-empty.
raise ValueError(f"{self!r} has an empty name")
elif suffix.startswith('.') and len(suffix) > 1:
return self.with_name(stem + suffix)
else:
elif suffix and not (suffix.startswith('.') and len(suffix) > 1):
raise ValueError(f"Invalid suffix {suffix!r}")
else:
return self.with_name(stem + suffix)
def relative_to(self, other, *, walk_up=False):
"""Return the relative path to another path identified by the passed