parsers.py 文件源码

def add_namespace(self, namespace, parent):
        desc = '%s sub-command group' % namespace.capitalize()
        temp = parent.add_parser(namespace,
                                 help=desc,
                                 description=desc,
                                 formatter_class=CustomDescriptionFormatter,
                                 add_help=False)
        temp.add_argument('-h', '--help', dest='_help', action=argparse._HelpAction)
        sub = temp.add_subparsers(help='Available sub-commands', parser_class=BaseParser)
        self.sub_map[namespace] = sub
        return sub