base.py 文件源码

def create_parser(self, prog_name, subcommand):
        """
        Create and return the ``ArgumentParser`` which will be used to
        parse the arguments to this command.
        """
        parser = CommandParser(
            self, prog="%s %s" % (os.path.basename(prog_name), subcommand),
            description=self.help or None,
        )
        parser.add_argument('--version', action='version', version=self.get_version())
        parser.add_argument(
            '-v', '--verbosity', action='store', dest='verbosity', default=1,
            type=int, choices=[0, 1, 2, 3],
            help='Verbosity level; 0=minimal output, 1=normal output, 2=verbose output, 3=very verbose output',
        )
        parser.add_argument(
            '--settings',
            help=(
                'The Python path to a settings module, e.g. '
                '"myproject.settings.main". If this isn\'t provided, the '
                'DJANGO_SETTINGS_MODULE environment variable will be used.'
            ),
        )
        parser.add_argument(
            '--pythonpath',
            help='A directory to add to the Python path, e.g. "/home/djangoprojects/myproject".',
        )
        parser.add_argument('--traceback', action='store_true', help='Raise on CommandError exceptions')
        parser.add_argument(
            '--no-color', action='store_true', dest='no_color', default=False,
            help="Don't colorize the command output.",
        )
        self.add_arguments(parser)
        return parser