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gh-117657: Fix __slots__ thread safety in free-threaded build (#119368)

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Fix a race in `PyMember_GetOne` and `PyMember_SetOne` for `Py_T_OBJECT_EX`.
These functions implement `__slots__` accesses for Python objects.
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Daniele Parmeggiani 2024-06-17 14:44:54 -04:00 • committed by GitHub
parent 460cc9e14e
commit 362cd2680b
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4 changed files with 77 additions and 12 deletions
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Lib/test/test_descr.py
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@ -1314,7 +1314,7 @@ class ClassPropertiesAndMethods(unittest.TestCase):
# Inherit from object on purpose to check some backwards compatibility paths
class X(object):
__slots__ = "a"
with self.assertRaisesRegex(AttributeError, "'X' object has no attribute 'a'"):
with self.assertRaisesRegex(AttributeError, "'test.test_descr.ClassPropertiesAndMethods.test_slots.<locals>.X' object has no attribute 'a'"):
X().a
# Test string subclass in `__slots__`, see gh-98783