関連ワード:  nameerror name class is not defined    nameerror name type is not defined    python name class is not defined    python nameerror name class is not defined    nameerror name num_classes is not defined    nameerror name authentication_classes is not defined    nameerror name permission_classes is not defined    python name type is not defined    nameerror name type_check is not defined    nameerror name reveal_type is not defined