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GH-125413: pathlib ABCs: use scandir() to speed up walk() (#126262)

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Use the new `PathBase.scandir()` method in `PathBase.walk()`, which greatly
reduces the number of `PathBase.stat()` calls needed when walking.

There are no user-facing changes, because the pathlib ABCs are still
private and `Path.walk()` doesn't use the implementation in its superclass.
This commit is contained in:
Barney Gale 2024-11-01 18:52:00 +00:00 • committed by GitHub
parent 68a51e0178
commit 37651cfbce
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2 changed files with 14 additions and 12 deletions
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4
Lib/test/test_pathlib/test_pathlib_abc.py
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@ -1951,7 +1951,7 @@ class DummyPathTest(DummyPurePathTest):
if self.can_symlink:
# Add some symlinks
source.joinpath('linkC').symlink_to('fileC')
source.joinpath('linkD').symlink_to('dirD')
source.joinpath('linkD').symlink_to('dirD', target_is_directory=True)
# Perform the copy
target = base / 'copyC'
@ -2969,7 +2969,7 @@ class DummyPathTest(DummyPurePathTest):
f.write(f"I'm {path} and proud of it. Blame test_pathlib.\n")
if self.can_symlink:
self.link_path.symlink_to(t2_path)
self.link_path.symlink_to(t2_path, target_is_directory=True)
broken_link_path.symlink_to('broken')
broken_link2_path.symlink_to(self.cls('tmp3', 'broken'))
self.sub2_tree = (self.sub2_path, [], ["broken_link", "broken_link2", "link", "tmp3"])