#!/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')