python实现根据ip地址反向查找主机名称的方法

import sys, sockettry:  result = socket.gethostbyaddr("66.249.71.15")  print "Primary hostname:"  print " " + result[0]  # Display the list of available addresses  #that is also returned  print "/nAddresses:"  for item in result[2]:    print " " + itemexcept socket.herror, e:  print "Couldn't look up name:", e

Primary hostname: crawl-66-249-71-15.googlebot.comAddresses: 66.249.71.15