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gh-117641: Improve the perfornance of posixpath.commonpath() (#117652)

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Nice Zombies 2024-04-18 09:26:34 +02:00 • committed by GitHub
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Lib/posixpath.py
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@ -550,7 +550,7 @@ def commonpath(paths):
split_paths = [path.split(sep) for path in paths]
try:
isabs, = set(p[:1] == sep for p in paths)
isabs, = {p.startswith(sep) for p in paths}
except ValueError:
raise ValueError("Can't mix absolute and relative paths") from None

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Misc/NEWS.d/next/Core and Builtins/2024-04-08-19-30-38.gh-issue-117641.oaBGSJ.rst Normal file
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@ -0,0 +1 @@
Speedup :func:`os.path.commonpath` on Unix.