zaphod.py 文件源码

def __call__(self, parser, namespace, values, option_string=None):
        """Custom call method."""
        parser.print_help()
        print("\n")

        subparsers_actions = [
            action for action in parser._actions
            if isinstance(action, argparse._SubParsersAction)]
        for subparsers_action in subparsers_actions:
            for choice, subparser in subparsers_action.choices.items():
                print("Subcommand: '{}'".format(choice))
                print(subparser.format_help())