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[3.13] GH-119169: Implement pathlib.Path.walk() using os.walk() (GH-119573) (#119750)

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GH-119169: Implement `pathlib.Path.walk()` using `os.walk()` (GH-119573)

For silly reasons, pathlib's generic implementation of `walk()` currently
resides in `glob._Globber`. This commit moves it into
`pathlib._abc.PathBase.walk()` where it really belongs, and makes
`pathlib.Path.walk()` call `os.walk()`.
(cherry picked from commit 7ff61f51b6)

Co-authored-by: Barney Gale <barney.gale@gmail.com>
This commit is contained in:
Miss Islington (bot) 2024-05-29 23:24:42 +02:00 • committed by GitHub
parent 061abf8e4c
commit a7aa7c41eb
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3 changed files with 34 additions and 39 deletions
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32
Lib/pathlib/_abc.py
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@ -696,7 +696,37 @@ class PathBase(PurePathBase):
def walk(self, top_down=True, on_error=None, follow_symlinks=False):
"""Walk the directory tree from this directory, similar to os.walk()."""
return self._globber.walk(self, top_down, on_error, follow_symlinks)
paths = [self]
while paths:
path = paths.pop()
if isinstance(path, tuple):
yield path
continue
dirnames = []
filenames = []
if not top_down:
paths.append((path, dirnames, filenames))
try:
for child in path.iterdir():
try:
if child.is_dir(follow_symlinks=follow_symlinks):
if not top_down:
paths.append(child)
dirnames.append(child.name)
else:
filenames.append(child.name)
except OSError:
filenames.append(child.name)
except OSError as error:
if on_error is not None:
on_error(error)
if not top_down:
while not isinstance(paths.pop(), tuple):
pass
continue
if top_down:
yield path, dirnames, filenames
paths += [path.joinpath(d) for d in reversed(dirnames)]
def absolute(self):
"""Return an absolute version of this path