patch from Andrea Weikert, added some comments.

thanks for looking into this.

source/blender/python/intern/bpy_ui.c

@@ -387,7 +387,7 @@ PyObject *BPY_ui_module( void )
 #if PY_VERSION_HEX >= 0x03000000
 	submodule= PyModule_Create(&ui_module);
 #else /* Py2.x */
-	submodule= Py_InitModule3( "bpyui", ui_methods, "" );
+	submodule= Py_InitModule3( "bpy.ui", ui_methods, "" );
 #endif
 	
 	/* uiBlock->flag (controls) */
@@ -558,8 +558,10 @@ PyObject *BPY_ui_module( void )
 	PyModule_AddObject( mod, "TIME", PyLong_FromSsize_t(SPACE_TIME) );
 	PyModule_AddObject( mod, "NODE", PyLong_FromSsize_t(SPACE_NODE) );
 	
-	
-	
+	/* INCREF since its its assumed that all these functions return the
+	 * module with a new ref like PyDict_New, since they are passed to
+	  * PyModule_AddObject which steals a ref */
+	Py_INCREF(submodule);
 	
 	return submodule;
 }