Clear the internal lookup cache. Return the current version tag.
-.. c:function:: long PyType_GetFlags(PyTypeObject* type)
+.. c:function:: unsigned long PyType_GetFlags(PyTypeObject* type)
Return the :c:member:`~PyTypeObject.tp_flags` member of *type*. This function is primarily
meant for use with `Py_LIMITED_API`; the individual flag bits are
.. versionadded:: 3.2
+ .. versionchanged:: 3.4
+ The return type is now ``unsigned long`` rather than ``long``.
+
.. c:function:: void PyType_Modified(PyTypeObject *type)