Method __call__

Lib/argparse.py:1195–1202

(self, parser, namespace, values, option_string=None)

        self.version = version

    def __call__(self, parser, namespace, values, option_string=None):
        version = self.version
        if version is None:
            version = parser.version
        formatter = parser._get_formatter()
        formatter.add_text(version)
        parser._print_message(formatter.format_help(), _sys.stdout)
        parser.exit()


class _SubParsersAction(Action):