argparse
说明
- 处理可选参数与位置参数 
- handles both optional and positional arguments 
- 产生标准化的帮助信息 
- produces highly informative usage messages 
- 支持调度子分器的解析器 
- supports parsers that dispatch to sub-parsers 
Example code
    # 初始化一个实例    parser = argparse.ArgumentParser(        description='sum the integers at the command line')    # 添加位置参数, 类型为int        parser.add_argument(        'integers', metavar='int', nargs='+', type=int,        help='an integer to be summed')    # 添加可选参数,默认为标准输出,类型为FileType文件类        parser.add_argument(        '--log', default=sys.stdout, type=argparse.FileType('w'),        help='the file where the sum should be written')    # 解析        args = parser.parse_args()    # Namespace(count='50', echo='good', host='172.168.100.1')    args.log.write('%s' % sum(args.integers))    args.log.close()Example code
#coding:utf8import argparseclass Args(object): def __init__(self): parser = argparse.ArgumentParser( description="A test network port tool" ) parser.add_argument( "echo", help="echo info." ) parser.add_argument( "-H", "--host", help="ipaddr or domain addr." ) parser.add_argument( "-c", "--count", help="connect counts" ) args = parser.parse_args() self.args = args def cc(self): print self.args print "args host: ", self.args.host print "args count: " ,self.args.countif __name__ == "__main__": a = Args() a.cc()
Result
➜ test git:(master) ✗ python argpar.py good -H 172.168.100.1 -c 50Namespace(count='50', echo='good', host='172.168.100.1')args host: 172.168.100.1args count: 50