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[3.14] gh-159739: Break reference cycles involving property objects (GH-159978) (#160015)

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(cherry picked from commit 4101d59902)

Co-authored-by: Jelle Zijlstra <jelle@openai.com>
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Miss Islington (bot)andJelle Zijlstra authored and GitHub committed 2026-10-21 11:49:03 -07:00
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commit 06a11dffeb
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Misc/NEWS.d/next/Core_and_Builtins/2026-10-20-00-00-00.gh-issue-159739.848b18.rst
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@@ -0,0 +1,2 @@
Allow the garbage collector to break reference cycles involving property
accessors or names.
Objects/descrobject.c
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@@ -1988,7 +1988,11 @@ static int
property_clear(PyObject *self)
{
propertyobject *pp = (propertyobject *)self;
Py_CLEAR(pp->prop_get);
Py_CLEAR(pp->prop_set);
Py_CLEAR(pp->prop_del);
Py_CLEAR(pp->prop_doc);
Py_CLEAR(pp->prop_name);
return 0;
}