python判断远程端口是否打开,下面的代码判断指定网站的80端口是否打开

import socket  sk = socket.socket(socket.AF_INET, socket.SOCK_STREAM)  sk.settimeout(1)  try:      sk.connect(('www.open-open.com',80))      print 'Server port 80 OK!'  except Exception:      print 'Server port 80 not connect!'  sk.close()