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Title: Weak Reference Objects — Python 3.15.0a5 documentation

Open Graph Title: Weak Reference Objects

Description: Python supports weak references as first-class objects. There are two specific object types which directly implement weak references. The first is a simple reference object, and the second acts as ...

Open Graph Description: Python supports weak references as first-class objects. There are two specific object types which directly implement weak references. The first is a simple reference object, and the second acts as ...

Opengraph URL: https://docs.python.org/3/c-api/weakref.html

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Domain: docs.python.org

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og:site_name	Python documentation
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og:image	https://docs.python.org/3.15/_images/social_previews/summary_c-api_weakref_ddec27f1.png
og:image:alt	Python supports weak references as first-class objects. There are two specific object types which directly implement weak references. The first is a simple reference object, and the second acts as ...
twitter:card	summary_large_image
theme-color	#3776ab
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Links:

	https://www.python.org/
Pickle buffer objects	https://docs.python.org/dev/c-api/picklebuffer.html
Capsules	https://docs.python.org/dev/c-api/capsule.html
Report a bug	https://docs.python.org/dev/bugs.html
Show source	https://github.com/python/cpython/blob/main/Doc/c-api/weakref.rst?plain=1
index	https://docs.python.org/dev/genindex.html
modules	https://docs.python.org/dev/py-modindex.html
next	https://docs.python.org/dev/c-api/capsule.html
previous	https://docs.python.org/dev/c-api/picklebuffer.html
Python	https://www.python.org/
3.15.0a5 Documentation	https://docs.python.org/dev/index.html
Python/C API Reference Manual	https://docs.python.org/dev/c-api/index.html
Concrete Objects Layer	https://docs.python.org/dev/c-api/concrete.html
Weak Reference Objects	https://docs.python.org/dev/c-api/weakref.html
¶	https://docs.python.org/dev/c-api/weakref.html#weak-reference-objects
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/weakref.html#c.PyWeakref_Check
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/weakref.html#c.PyWeakref_CheckRef
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/weakref.html#c.PyWeakref_CheckRefExact
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/weakref.html#c.PyWeakref_CheckProxy
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/weakref.html#c.PyWeakref_NewRef
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
TypeError	https://docs.python.org/dev/library/exceptions.html#TypeError
PyType_SUPPORTS_WEAKREFS()	https://docs.python.org/dev/c-api/type.html#c.PyType_SUPPORTS_WEAKREFS
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/weakref.html#c.PyWeakref_NewProxy
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
TypeError	https://docs.python.org/dev/library/exceptions.html#TypeError
PyType_SUPPORTS_WEAKREFS()	https://docs.python.org/dev/c-api/type.html#c.PyType_SUPPORTS_WEAKREFS
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/weakref.html#c.PyWeakref_GetRef
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
strong reference	https://docs.python.org/dev/glossary.html#term-strong-reference
strong reference	https://docs.python.org/dev/glossary.html#term-strong-reference
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/weakref.html#c.PyWeakref_IsDead
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/weakref.html#c.PyObject_ClearWeakRefs
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
tp_dealloc	https://docs.python.org/dev/c-api/typeobj.html#c.PyTypeObject.tp_dealloc
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/weakref.html#c.PyUnstable_Object_ClearWeakRefsNoCallbacks
Unstable API	https://docs.python.org/dev/c-api/stable.html#unstable-c-api
tp_dealloc	https://docs.python.org/dev/c-api/typeobj.html#c.PyTypeObject.tp_dealloc
__del__()	https://docs.python.org/dev/reference/datamodel.html#object.__del__
PyObject_ClearWeakRefs()	https://docs.python.org/dev/c-api/weakref.html#c.PyObject_ClearWeakRefs
PyObject_ClearWeakRefs()	https://docs.python.org/dev/c-api/weakref.html#c.PyObject_ClearWeakRefs
Pickle buffer objects	https://docs.python.org/dev/c-api/picklebuffer.html
Capsules	https://docs.python.org/dev/c-api/capsule.html
Report a bug	https://docs.python.org/dev/bugs.html
Show source	https://github.com/python/cpython/blob/main/Doc/c-api/weakref.rst?plain=1
index	https://docs.python.org/dev/genindex.html
modules	https://docs.python.org/dev/py-modindex.html
next	https://docs.python.org/dev/c-api/capsule.html
previous	https://docs.python.org/dev/c-api/picklebuffer.html
Python	https://www.python.org/
3.15.0a5 Documentation	https://docs.python.org/dev/index.html
Python/C API Reference Manual	https://docs.python.org/dev/c-api/index.html
Concrete Objects Layer	https://docs.python.org/dev/c-api/concrete.html
Weak Reference Objects	https://docs.python.org/dev/c-api/weakref.html
Copyright	https://docs.python.org/dev/copyright.html
History and License	https://docs.python.org/license.html
Please donate.	https://www.python.org/psf/donations/
Found a bug	https://docs.python.org/bugs.html
Sphinx	https://www.sphinx-doc.org/

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