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gh-117201: Handle leading // for posixpath.commonpath #117202

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nineteendo wants to merge 14 commits into from
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gh-117201: Handle leading // for posixpath.commonpath #117202

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247c9af
Handle leading `//` for `posixpath.commonpath`
nineteendo Mar 24, 2024
0c38276
raise TypeError for non-sequences
nineteendo Mar 24, 2024
a9b0832
📜🤖 Added by blurb_it.
blurb-it[bot] Mar 26, 2024
a521282
Remove `break` & `else`
nineteendo Mar 26, 2024
b467e7e
Merge branch 'fix-commonpath' of https://github.com/nineteendo/cpytho…
nineteendo Mar 26, 2024
26eac21
Handle errors for iterable
nineteendo Mar 26, 2024
d83743d
Remove redundant check
nineteendo Mar 27, 2024
1ae0c43
raise TypeError for non-sequences
nineteendo Mar 28, 2024
e6de234
Update NEWS.d
nineteendo Mar 28, 2024
012c12e
Add newline
nineteendo Mar 28, 2024
fb1c91a
Speed up `posixpath.ismount`
nineteendo Mar 28, 2024
ca90fde
unnest `posixpath.expanduser`
nineteendo Mar 28, 2024
758e0d6
Speed up `posixpath.expanduser` & `posixpath.normpath`
nineteendo Mar 28, 2024
218e43e
Move refactoring to new branch
nineteendo Mar 28, 2024
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Handle errors for iterable
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@nineteendo
nineteendo committed Mar 26, 2024
commit 26eac213196480b81551c654b6b2fd9e84888932
11 changes: 7 additions & 4 deletions Lib/posixpath.py
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Original file line number Diff line number Diff line change
Expand Up @@ -538,21 +538,24 @@ def relpath(path, start=None):
raise


# Return the longest common sub-path of the sequence of paths given as input.
# Return the longest common sub-path of the iterable of paths given as input.
# The paths are not normalized before comparing them (this is the
# responsibility of the caller). Any trailing separator is stripped from the
# returned path.

def commonpath(paths):
"""Given a sequence of path names, returns the longest common sub-path."""
"""Given a iterable of path names, returns the longest common sub-path."""
_, roots, tails = zip(*map(splitroot, paths))
if not roots:
raise ValueError('commonpath() arg is an empty sequence')
raise ValueError('commonpath() arg is an empty iterable')

try:
prefix = min(roots)
except (TypeError, AttributeError):
genericpath._check_arg_types('commonpath', *paths)
genericpath._check_arg_types('commonpath', *(
# Can't use paths, can be an iterable
root + tail for root, tail in zip(roots, tails)
))
raise

if not prefix and max(roots):
Expand Down