io_utils.py 文件源码

def config_and_args_parser(conf_path, section, description=''): 
    """
    Recipe mostly taken from
    http://blog.vwelch.com/2011/04/combining-configparser-and-argparse.html 
    """

    # Parse directory
    parser = argparse.ArgumentParser(
        description=description)
    parser.add_argument('-c', '--config-file', required=False, 
                        default=conf_path, help='Specify config file', metavar='FILE')
    args, remaining_argv = parser.parse_known_args()

    # Try reading the conf file
    try: 
        import ConfigParser
        config = ConfigParser.SafeConfigParser()
        config.read([args.config_file])
        defaults = dict(config.items(section))
        print('Loading config file: {}'.format(args.config_file))
    except Exception as e: 
        raise RuntimeError('Failed reading %s: %s' % (args.config_file, e))

    parser.set_defaults(**defaults)
    # parser.add_argument("--option1", help="some option")
    args = parser.parse_args(remaining_argv)        
    return args