Three ways to get IP addresses from python

The way to get an IP address in Python is simple, we can only do it with the gethostbyname and gethostbyname_ex two functions, and of course we can use the public network API to implement it.

The use of dial-up Internet, there are generally a local IP and an extranet IP, using Python can easily get these two IP

Use the gethostbyname and GETHOSTBYNAME_EX two functions to implement

The code is as follows
Import socket Localip = Socket.gethostbyname (Socket.gethostname ()) #这个得到本地ip Print "Local ip:%s"%localip IPList = SOCKET.GETHOSTBYNAME_EX (Socket.gethostname ()) For I in IPList: If I!= localip: print "External ip:%s"%i

Get local IP Address

The code is as follows
#!/usr/bin/python Import socket Import struct Import Fcntl def getip (ethname): S=socket.socket (socket.af_inet, socket. SOCK_DGRAM) Return Socket.inet_ntoa (Fcntl.ioctl (S.fileno (), 0x8915, Struct.pack (' 256s ', ethname[:15])) [20:24]) If __name__== ' __main__ ': Print GetIP (' eth0 ')

Method Two, public network address direct access to IP

code is as follows

&nbs P;

#!/usr/bin/env python Import re,urllib2 Class Get_public_i P:     def getip (self):         try:              Myip = self.visit ("http://www.111cn.net/")          except:             try :                 Myip = self.visit ("http://www.ip138.com/ip2city.asp")             except:                  Myip = "So sorry!!!"         return MYIP     def visit (self,url):         opener = Urllib2.urlopen (URL         If url = = Opener.geturl ():              str = opener.read ()         return Re.search (' D+.d+.d+.d+ ', str). Group (0) If __name__ = = "__main__":     Getmyip = get_public_ip ()     print Getmyip.getip ()