Skip to content

gh-112405: Optimise pathlib.Path.relative_to #112406

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
AlexWaygood merged 4 commits into from
Nov 26, 2023
Merged

gh-112405: Optimise pathlib.Path.relative_to #112406

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
3cc39b1
gh-112405: Optimise `pathlib.Path.relative_to`
AlexWaygood Nov 25, 2023
ba3bf0c
Concede to the Yanks
AlexWaygood Nov 26, 2023
c57d567
Update Misc/NEWS.d/next/Library/2023-11-25-20-29-28.gh-issue-112405.c…
AlexWaygood Nov 26, 2023
3adbd10
Merge branch 'main' into pathlib-itertools
AlexWaygood Nov 26, 2023
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
3 changes: 2 additions & 1 deletion Lib/pathlib.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@
import warnings
from _collections_abc import Sequence
from errno import ENOENT, ENOTDIR, EBADF, ELOOP, EINVAL
from itertools import chain
from stat import S_ISDIR, S_ISLNK, S_ISREG, S_ISSOCK, S_ISBLK, S_ISCHR, S_ISFIFO

try:
Expand Down Expand Up @@ -445,7 +446,7 @@ def relative_to(self, other, /, *_deprecated, walk_up=False):
other = self.with_segments(other, *_deprecated)
elif not isinstance(other, PurePath):
other = self.with_segments(other)
for step, path in enumerate([other] + list(other.parents)):
for step, path in enumerate(chain([other], other.parents)):
if path == self or path in self.parents:
break
elif not walk_up:
Expand Down
1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Library/2023-11-25-20-29-28.gh-issue-112405.cOtzxC.rst
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Optimize :meth:`pathlib.PurePath.relative_to`. Patch by Alex Waygood.