python解析域名

#coding:utf-8


import socket

def URL2IP():
   for oneurl in urllist.readlines():
       url=str(oneurl.strip())[7:]
       print(url)
       try:
           ip =socket.gethostbyname(url)
           print(ip)
           iplist.writelines(str(ip)+"\n")
       except:
           print("this URL 2 IP ERROR ")

try:
    urllist=open("D:\urllist.txt","r")
    iplist=open("D:\iplist.txt","w")
    URL2IP()
    urllist.close()
    iplist.close()
    print("complete !")
except:
    print("ERROR !")