相关疑难解决方法(0)

我的脚本定义了一个主解析器和多个子解析器.我想将这个-p论点应用于一些subparser.到目前为止代码看起来像这样:

parser = argparse.ArgumentParser(prog="myProg")
subparsers = parser.add_subparsers(title="actions")

parser.add_argument("-v", "--verbose",
                    action="store_true",
                    dest="VERBOSE",
                    help="run in verbose mode")

parser_create = subparsers.add_parser ("create", 
                                        help = "create the orbix environment")
parser_create.add_argument ("-p", 
                            type = int, 
                            required = True, 
                            help = "set db parameter")

# Update
parser_update = subparsers.add_parser ("update", 
                                        help = "update the orbix environment")
parser_update.add_argument ("-p", 
                            type = int, 
                            required = True, 
                            help = "set db parameter")

如你所见,add_arument ("-p")重复两次.我实际上有更多的subsparsers.有没有办法循环遍历现有的子分析符以避免重复？

为了记录,我使用的是Python 2.7

最近,我正在学习argparse模块,代码下面发生了Argument错误

import argparse
import sys


class ExecuteShell(object):
    def create(self, args):
        """aaaaaaa"""
        print('aaaaaaa')
        return args

    def list(self, args):
        """ccccccc"""
        print('ccccccc')
        return args

    def delete(self, args):
        """ddddddd"""
        print('ddddddd')
        return args


class TestShell(object):
    def get_base_parser(self):
        parser = argparse.ArgumentParser()
        parser.add_argument('-h',
                            '--help',
                            action='store_true',
                            help=argparse.SUPPRESS)

        parser.add_argument('-c', action='store',
                            dest='create_value',
                            help='create a file')

        parser.add_argument('-d', action='store',
                            dest='delete_value',
                            help='delete a file')

        parser.add_argument('-l', action='store',
                            dest='list_value',
                            help='list a dir')

        return parser

    def _find_actions(self, subparsers, actions_module):
        for attr in (action for action in dir(actions_module) if not  action.startswith('__')):
            callback = getattr(actions_module, attr)
            desc = …