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GH-125413: pathlib ABCs: use scandir() to speed up glob() (#126261)

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

There are no user-facing changes, because the pathlib ABCs are still
private and `Path.glob()` doesn't use the implementation in its superclass.
This commit is contained in:
Barney Gale 2024-11-01 17:48:58 +00:00 • committed by GitHub
parent 464a7a91d0
commit 68a51e0178
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3 changed files with 10 additions and 25 deletions
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8
Lib/test/test_pathlib/test_pathlib_abc.py
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@ -1633,8 +1633,10 @@ class DummyPathTest(DummyPurePathTest):
p.joinpath('linkA').symlink_to('fileA')
p.joinpath('brokenLink').symlink_to('non-existing')
p.joinpath('linkB').symlink_to('dirB', target_is_directory=True)
p.joinpath('dirA', 'linkC').symlink_to(parser.join('..', 'dirB'))
p.joinpath('dirB', 'linkD').symlink_to(parser.join('..', 'dirB'))
p.joinpath('dirA', 'linkC').symlink_to(
parser.join('..', 'dirB'), target_is_directory=True)
p.joinpath('dirB', 'linkD').symlink_to(
parser.join('..', 'dirB'), target_is_directory=True)
p.joinpath('brokenLinkLoop').symlink_to('brokenLinkLoop')
def tearDown(self):
@ -2479,7 +2481,7 @@ class DummyPathTest(DummyPurePathTest):
if i % 2:
link.symlink_to(P(self.base, "dirE", "nonexistent"))
else:
link.symlink_to(P(self.base, "dirC"))
link.symlink_to(P(self.base, "dirC"), target_is_directory=True)
self.assertEqual(len(set(base.glob("*"))), 100)
self.assertEqual(len(set(base.glob("*/"))), 50)