Python gets the native IP address code sharing under Linux

Sometimes when it comes to getting a native IP, the following is used.

#!/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')