python命令列參數模組argparse

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argparse

說明

• 處理選擇性參數與位置參數
• handles both optional and positional arguments
• 產生標準化的協助資訊
• produces highly informative usage messages
• 支援調度子分器的解析器
• supports parsers that dispatch to sub-parsers

Example code

    # 初始化一個執行個體    parser = argparse.ArgumentParser(        description=‘sum the integers at the command line‘)        # 添加位置參數， 類型為int        parser.add_argument(        ‘integers‘, metavar=‘int‘, nargs=‘+‘, type=int,        help=‘an integer to be summed‘)        # 添加選擇性參數，預設為標準輸出，類型為FileType檔案類        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

python命令列參數模組argparse