Issue #15146: Add PyType_FromSpecWithBases. Patch by Robin Schreiber.
diff --git a/PC/python33stub.def b/PC/python33stub.def
index 20a5868..4111d30 100644
--- a/PC/python33stub.def
+++ b/PC/python33stub.def
@@ -513,6 +513,7 @@
 PyTuple_Type
 PyType_ClearCache
 PyType_FromSpec
+PyType_FromSpecWithBases
 PyType_GenericAlloc
 PyType_GenericNew
 PyType_GetFlags