argparse.ArgumentError：参数--skip-checks：冲突的选项字符串：--skip-checks答案

【问题标题】：argparse.ArgumentError: argument --skip-checks: conflicting option string: --skip-checksargparse.ArgumentError：参数--skip-checks：冲突的选项字符串：--skip-checks
【发布时间】：2021-01-21 18:16:39
【问题描述】：

我正在使用 django-tenant-schemas，当我尝试使用“migrate_schemas”命令时遇到错误。我在这里看到过类似的问题，但它们根本没有帮助。我在两个不同的应用程序上试过这个，但结果是一样的。有人知道如何解决这个问题吗？

    Traceback (most recent call last):
  File "C:\DjangoNew\tenancy\manage.py", line 22, in <module>
    main()
  File "C:\DjangoNew\tenancy\manage.py", line 18, in main
    execute_from_command_line(sys.argv)
  File "C:\Users\asyey\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\__init__.py", line 401, in execute_from_command_line
    utility.execute()
  File "C:\Users\asyey\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\__init__.py", line 395, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "C:\Users\asyey\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\base.py", line 322, in run_from_argv
    parser = self.create_parser(argv[0], argv[1])
  File "C:\Users\asyey\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\base.py", line 296, in create_parser
    self.add_arguments(parser)
  File "C:\Users\asyey\AppData\Local\Programs\Python\Python37\lib\site-packages\tenant_schemas\management\commands\migrate_schemas.py", line 20, in add_arguments
    command.add_arguments(parser)
  File "C:\Users\asyey\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\management\commands\migrate.py", line 28, in add_arguments
    help='Skip system checks.',
  File "C:\Users\asyey\AppData\Local\Programs\Python\Python37\lib\argparse.py", line 1373, in add_argument
    return self._add_action(action)
  File "C:\Users\asyey\AppData\Local\Programs\Python\Python37\lib\argparse.py", line 1736, in _add_action
    self._optionals._add_action(action)
  File "C:\Users\asyey\AppData\Local\Programs\Python\Python37\lib\argparse.py", line 1577, in _add_action
    action = super(_ArgumentGroup, self)._add_action(action)
  File "C:\Users\asyey\AppData\Local\Programs\Python\Python37\lib\argparse.py", line 1387, in _add_action
    self._check_conflict(action)
  File "C:\Users\asyey\AppData\Local\Programs\Python\Python37\lib\argparse.py", line 1526, in _check_conflict
    conflict_handler(action, confl_optionals)
  File "C:\Users\asyey\AppData\Local\Programs\Python\Python37\lib\argparse.py", line 1535, in _handle_conflict_error
    raise ArgumentError(action, message % conflict_string)
argparse.ArgumentError: argument --skip-checks: conflicting option string: --skip-checks

【问题讨论】：

标签： python django multi-tenant traceback

【解决方案1】：

这是django-tenant-schemas 中的一个错误。从阅读 Django 文档来看，他们似乎忘记将requires_system_checks 设置为False。

我相信这个pull request 会解决这个问题。

在合并此修复程序之前，您可以通过运行类似的方法将Django 降级到版本 2 来解决此问题

pip install "Django~=2.2"

或将INSTALLED_APPS 列表中的tenant-schemas 移动到settings.py 文件的底部。

【讨论】：