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gh-141004: Document PyType_SUPPORTS_WEAKREFS #141408

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ZeroIntensity merged 5 commits into from
Nov 12, 2025
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gh-141004: Document PyType_SUPPORTS_WEAKREFS #141408

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f209726
Document PyType_SUPPORTS_WEAKREFS()
ZeroIntensity Nov 11, 2025
6ef3a96
Add seealso note to PyWeakref_NewRef() and PyWeakref_NewProxy() docs.
ZeroIntensity Nov 11, 2025
da0a265
Update type.rst
ZeroIntensity Nov 11, 2025
dc405c2
Ensure there are two lines between each definition.
ZeroIntensity Nov 11, 2025
21f911f
Merge branch 'document-pytype-weakrefs' of https://github.com/zeroint…
ZeroIntensity Nov 11, 2025
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8 changes: 8 additions & 0 deletions Doc/c-api/type.rst
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Expand Up @@ -327,6 +327,14 @@ Type Objects

.. versionadded:: 3.12

.. c:function:: int PyType_SUPPORTS_WEAKREFS(PyTypeObject *type)

Return true if instances of *type* supports creating weak references, false
otherwise. This function always succeeds. *type* must not be ``NULL``.

.. seealso::
* :ref:`weakrefobjects`
* :py:mod:`weakref`

Creating Heap-Allocated Types
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8 changes: 8 additions & 0 deletions Doc/c-api/weakref.rst
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Expand Up @@ -45,6 +45,10 @@ as much as it can.
weakly referenceable object, or if *callback* is not callable, ``None``, or
``NULL``, this will return ``NULL`` and raise :exc:`TypeError`.

.. seealso::
:c:func:`PyType_SUPPORTS_WEAKREFS` for checking if *ob* is weakly
referenceable.


.. c:function:: PyObject* PyWeakref_NewProxy(PyObject *ob, PyObject *callback)

Expand All @@ -57,6 +61,10 @@ as much as it can.
is not a weakly referenceable object, or if *callback* is not callable,
``None``, or ``NULL``, this will return ``NULL`` and raise :exc:`TypeError`.

.. seealso::
:c:func:`PyType_SUPPORTS_WEAKREFS` for checking if *ob* is weakly
referenceable.


.. c:function:: int PyWeakref_GetRef(PyObject *ref, PyObject **pobj)

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