bpo-41832: Restore note about NULL in PyType_Slot.pfunc (GH-23243)

shihai1991 · web-flow · commit 2b39da49974b · 2020-11-14T13:03:42.000+01:00
diff --git a/Doc/c-api/type.rst b/Doc/c-api/type.rst
@@ -265,3 +265,5 @@ The following functions and structs are used to create
 
       The desired value of the slot. In most cases, this is a pointer
       to a function.
+
+      Slots other than ``Py_tp_doc`` may not be ``NULL``.
