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Closes #22507: document that PyType_IsSubtype does not call __subclasscheck__.

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Georg Brandl 2014-10-06 14:15:06 +02:00
parent eb7e8f607e
commit a920b6d762
1 changed files with 6 additions and 0 deletions
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Doc/c-api/type.rst
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@ -44,6 +44,7 @@ Type Objects
.. versionadded:: 3.2 .. versionadded:: 3.2
.. c:function:: void PyType_Modified(PyTypeObject *type) .. c:function:: void PyType_Modified(PyTypeObject *type)
Invalidate the internal lookup cache for the type and all of its Invalidate the internal lookup cache for the type and all of its
@ -67,6 +68,11 @@ Type Objects
Return true if *a* is a subtype of *b*. Return true if *a* is a subtype of *b*.
This function only checks for actual subtypes, which means that
:meth:`~type.__subclasscheck__` is not called on *b*. Call
:c:func:`PyObject_IsSubclass` to do the same check that :func:`issubclass`
would do.
.. c:function:: PyObject* PyType_GenericAlloc(PyTypeObject *type, Py_ssize_t nitems) .. c:function:: PyObject* PyType_GenericAlloc(PyTypeObject *type, Py_ssize_t nitems)