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GH-70303: Make pathlib.Path.glob('**') return both files and directories (#114684)
Return files and directories from `pathlib.Path.glob()` if the pattern ends with `**`. This is more compatible with `PurePath.full_match()` and with other glob implementations such as bash and `glob.glob()`. Users can add a trailing slash to match only directories. In my previous patch I added a `FutureWarning` with the intention of fixing this in Python 3.15. Upon further reflection I think this was an unnecessarily cautious remedy to a clear bug.
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‎Doc/library/pathlib.rst‎

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@@ -1038,9 +1038,8 @@ call fails (for example because the path doesn't exist).
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The *follow_symlinks* parameter was added.
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.. versionchanged:: 3.13
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Emits :exc:`FutureWarning` if the pattern ends with "``**``". In a
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future Python release, patterns with this ending will match both files
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and directories. Add a trailing slash to match only directories.
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Return files and directories if *pattern* ends with "``**``". In
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previous versions, only directories were returned.
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.. versionchanged:: 3.13
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The *pattern* parameter accepts a :term:`path-like object`.

‎Doc/whatsnew/3.13.rst‎

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@@ -350,6 +350,11 @@ pathlib
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(Contributed by Barney Gale in :gh:`77609` and :gh:`105793`, and
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Kamil Turek in :gh:`107962`).
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* Return files and directories from :meth:`pathlib.Path.glob` and
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:meth:`~pathlib.Path.rglob` when given a pattern that ends with "``**``". In
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earlier versions, only directories were returned.
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(Contributed by Barney Gale in :gh:`70303`).
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pdb
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---
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@@ -1211,6 +1216,11 @@ Changes in the Python API
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* :class:`mailbox.Maildir` now ignores files with a leading dot.
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(Contributed by Zackery Spytz in :gh:`65559`.)
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* :meth:`pathlib.Path.glob` and :meth:`~pathlib.Path.rglob` now return both
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files and directories if a pattern that ends with "``**``" is given, rather
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than directories only. Users may add a trailing slash to match only
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directories.
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Build Changes
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=============

‎Lib/pathlib/__init__.py‎

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@@ -465,14 +465,6 @@ def _pattern_stack(self):
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elif pattern[-1] in (self.pathmod.sep, self.pathmod.altsep):
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# GH-65238: pathlib doesn't preserve trailing slash. Add it back.
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parts.append('')
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elif parts[-1] == '**':
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# GH-70303: '**' only matches directories. Add trailing slash.
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warnings.warn(
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"Pattern ending '**' will match files and directories in a "
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"future Python release. Add a trailing slash to match only "
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"directories and remove this warning.",
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FutureWarning, 4)
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parts.append('')
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parts.reverse()
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return parts
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‎Lib/test/test_pathlib/test_pathlib.py‎

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@@ -1258,18 +1258,6 @@ def test_glob_above_recursion_limit(self):
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with set_recursion_limit(recursion_limit):
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list(base.glob('**/'))
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def test_glob_recursive_no_trailing_slash(self):
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P = self.cls
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p = P(self.base)
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with self.assertWarns(FutureWarning):
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p.glob('**')
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with self.assertWarns(FutureWarning):
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p.glob('*/**')
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with self.assertWarns(FutureWarning):
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p.rglob('**')
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with self.assertWarns(FutureWarning):
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p.rglob('*/**')
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def test_glob_pathlike(self):
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P = self.cls
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p = P(self.base)

‎Lib/test/test_pathlib/test_pathlib_abc.py‎

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@@ -1765,16 +1765,26 @@ def _check(path, glob, expected):
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_check(p, "*/fileB", ["dirB/fileB", "linkB/fileB"])
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_check(p, "*/", ["dirA/", "dirB/", "dirC/", "dirE/", "linkB/"])
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_check(p, "dir*/*/..", ["dirC/dirD/..", "dirA/linkC/..", "dirB/linkD/.."])
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_check(p, "dir*/**", [
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"dirA", "dirA/linkC", "dirA/linkC/fileB", "dirA/linkC/linkD", "dirA/linkC/linkD/fileB",
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"dirB", "dirB/fileB", "dirB/linkD", "dirB/linkD/fileB",
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"dirC", "dirC/fileC", "dirC/dirD", "dirC/dirD/fileD", "dirC/novel.txt",
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"dirE"])
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_check(p, "dir*/**/", ["dirA/", "dirA/linkC/", "dirA/linkC/linkD/", "dirB/", "dirB/linkD/",
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"dirC/", "dirC/dirD/", "dirE/"])
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_check(p, "dir*/**/..", ["dirA/..", "dirA/linkC/..", "dirB/..",
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"dirB/linkD/..", "dirA/linkC/linkD/..",
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"dirC/..", "dirC/dirD/..", "dirE/.."])
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_check(p, "dir*/*/**", [
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"dirA/linkC", "dirA/linkC/linkD", "dirA/linkC/fileB", "dirA/linkC/linkD/fileB",
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"dirB/linkD", "dirB/linkD/fileB",
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"dirC/dirD", "dirC/dirD/fileD"])
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_check(p, "dir*/*/**/", ["dirA/linkC/", "dirA/linkC/linkD/", "dirB/linkD/", "dirC/dirD/"])
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_check(p, "dir*/*/**/..", ["dirA/linkC/..", "dirA/linkC/linkD/..",
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"dirB/linkD/..", "dirC/dirD/.."])
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_check(p, "dir*/**/fileC", ["dirC/fileC"])
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_check(p, "dir*/*/../dirD/**/", ["dirC/dirD/../dirD/"])
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_check(p, "*/dirD/**", ["dirC/dirD", "dirC/dirD/fileD"])
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_check(p, "*/dirD/**/", ["dirC/dirD/"])
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@needs_symlinks
@@ -1791,12 +1801,20 @@ def _check(path, glob, expected):
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_check(p, "*/fileB", ["dirB/fileB"])
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_check(p, "*/", ["dirA/", "dirB/", "dirC/", "dirE/"])
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_check(p, "dir*/*/..", ["dirC/dirD/.."])
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_check(p, "dir*/**", [
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"dirA", "dirA/linkC",
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"dirB", "dirB/fileB", "dirB/linkD",
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"dirC", "dirC/fileC", "dirC/dirD", "dirC/dirD/fileD", "dirC/novel.txt",
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"dirE"])
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_check(p, "dir*/**/", ["dirA/", "dirB/", "dirC/", "dirC/dirD/", "dirE/"])
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_check(p, "dir*/**/..", ["dirA/..", "dirB/..", "dirC/..", "dirC/dirD/..", "dirE/.."])
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_check(p, "dir*/*/**", ["dirC/dirD", "dirC/dirD/fileD"])
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_check(p, "dir*/*/**/", ["dirC/dirD/"])
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_check(p, "dir*/*/**/..", ["dirC/dirD/.."])
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_check(p, "dir*/**/fileC", ["dirC/fileC"])
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_check(p, "dir*/*/../dirD/**", ["dirC/dirD/../dirD", "dirC/dirD/../dirD/fileD"])
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_check(p, "dir*/*/../dirD/**/", ["dirC/dirD/../dirD/"])
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_check(p, "*/dirD/**", ["dirC/dirD", "dirC/dirD/fileD"])
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_check(p, "*/dirD/**/", ["dirC/dirD/"])
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def test_rglob_common(self):
@@ -1833,10 +1851,13 @@ def _check(glob, expected):
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"dirC/dirD", "dirC/dirD/fileD"])
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_check(p.rglob("file*"), ["dirC/fileC", "dirC/dirD/fileD"])
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_check(p.rglob("**/file*"), ["dirC/fileC", "dirC/dirD/fileD"])
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_check(p.rglob("dir*/**"), ["dirC/dirD", "dirC/dirD/fileD"])
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_check(p.rglob("dir*/**/"), ["dirC/dirD/"])
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_check(p.rglob("*/*"), ["dirC/dirD/fileD"])
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_check(p.rglob("*/"), ["dirC/dirD/"])
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_check(p.rglob(""), ["dirC/", "dirC/dirD/"])
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_check(p.rglob("**"), [
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"dirC", "dirC/fileC", "dirC/dirD", "dirC/dirD/fileD", "dirC/novel.txt"])
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_check(p.rglob("**/"), ["dirC/", "dirC/dirD/"])
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# gh-91616, a re module regression
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_check(p.rglob("*.txt"), ["dirC/novel.txt"])

‎Misc/NEWS.d/next/Library/2024-01-28-18-38-18.gh-issue-70303._Lt_pj.rst‎

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@@ -0,0 +1,2 @@
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Return both files and directories from :meth:`pathlib.Path.glob` if a
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pattern ends with "``**``". Previously only directories were returned.

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