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GH-133789: Fix unpickling of pathlib objects pickled in Python 3.13 #133831

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GH-133789: Fix unpickling of pathlib objects pickled in Python 3.13 #133831

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12 changes: 12 additions & 0 deletions Lib/pathlib/_local.py
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Original file line number Diff line number Diff line change
@@ -0,0 +1,12 @@
"""
This module exists so that pathlib objects pickled under Python 3.13 can be
unpickled in 3.14+.
"""

from pathlib import *

__all__ = [
"UnsupportedOperation",
"PurePath", "PurePosixPath", "PureWindowsPath",
"Path", "PosixPath", "WindowsPath",
]
6 changes: 6 additions & 0 deletions Lib/test/test_pathlib/test_pathlib.py
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Expand Up @@ -293,6 +293,12 @@ def test_pickling_common(self):
self.assertEqual(hash(pp), hash(p))
self.assertEqual(str(pp), str(p))

def test_unpicking_3_13(self):
data = (b"\x80\x04\x95'\x00\x00\x00\x00\x00\x00\x00\x8c\x0e"
b"pathlib._local\x94\x8c\rPurePosixPath\x94\x93\x94)R\x94.")
p = pickle.loads(data)
self.assertIsInstance(p, pathlib.PurePosixPath)

def test_repr_common(self):
for pathstr in ('a', 'a/b', 'a/b/c', '/', '/a/b', '/a/b/c'):
with self.subTest(pathstr=pathstr):
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1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Library/2025-05-10-15-10-54.gh-issue-133789.I-ZlUX.rst
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@@ -0,0 +1 @@
Fix unpickling of :mod:`pathlib` objects that were pickled in Python 3.13.
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