config.py 文件源码

def parser(self):
        kwargs = {
            "usage": self.usage,
            "prog": self.prog
        }
        parser = argparse.ArgumentParser(**kwargs)
        parser.add_argument("-v", "--version",
                action="version", default=argparse.SUPPRESS,
                version="%(prog)s (version " + __version__ + ")\n",
                help="show program's version number and exit")
        parser.add_argument("args", nargs="*", help=argparse.SUPPRESS)

        keys = sorted(self.settings, key=self.settings.__getitem__)
        for k in keys:
            self.settings[k].add_option(parser)

        return parser