bottle框架学习:命令行

Posted 2020-09-23

在最初的一段代码，内容如下；

if __name__ == \'__main__\':
    from optparse import OptionParser
    _cmd_parser = OptionParser(usage="usage: %prog [options] package.module:app")
    _opt = _cmd_parser.add_option
    _opt("--version", action="store_true", help="show version number.")
    _opt("-b", "--bind", metavar="ADDRESS", help="bind socket to ADDRESS.")
    _opt("-s", "--server", default=\'wsgiref\', help="use SERVER as backend.")
    _opt("-p", "--plugin", action="append", help="install additional plugin/s.")
    _opt("--debug", action="store_true", help="start server in debug mode.")
    _opt("--reload", action="store_true", help="auto-reload on file changes.")
    _cmd_options, _cmd_args = _cmd_parser.parse_args()
    if _cmd_options.server and _cmd_options.server.startswith(\'gevent\'):
        import gevent.monkey; gevent.monkey.patch_all()

 

这里，实际上使用到了OptionParser模块，

出来的提示是：