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[3.13] gh-76595: Add note on PyCapsule_Import behavior (GH-134022) #136075

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Jun 28, 2025
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[3.13] gh-76595: Add note on PyCapsule_Import behavior (GH-134022) #136075

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10 changes: 10 additions & 0 deletions Doc/c-api/capsule.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -105,9 +105,19 @@ Refer to :ref:`using-capsules` for more information on using these objects.
``module.attribute``. The *name* stored in the capsule must match this
string exactly.
This function splits *name* on the ``.`` character, and imports the first
element. It then processes further elements using attribute lookups.
Return the capsule's internal *pointer* on success. On failure, set an
exception and return ``NULL``.
.. note::
If *name* points to an attribute of some submodule or subpackage, this
submodule or subpackage must be previously imported using other means
(for example, by using :c:func:`PyImport_ImportModule`) for the
attribute lookups to succeed.
.. versionchanged:: 3.3
*no_block* has no effect anymore.
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