-- previous commit was decrefing a borrowed reference; thanks Ascotan for

tracking this down!

source/blender/python/api2_2x/Effect.c

@@ -734,7 +734,7 @@ PyObject *Effect_Init( void )
 
 	dict = PyModule_GetDict( submodule );
 
-	EXPP_dict_set_item_str( dict, "Particle", particle );
+	PyDict_SetItemString( dict, "Particle", particle );
 	return ( submodule );
 }