python 获取网卡ip地址

#!/usr/bin/python
import os
import socket 
import fcntl 
import struct 

def get_ip_address(ifname): 
    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) 
    return socket.inet_ntoa(fcntl.ioctl( 
        s.fileno(), 
        0x8915,  # SIOCGIFADDR 
        struct.pack('256s', ifname[:15]) 
    )[20:24]) 

def get_ip():
        f=os.popen("ifconfig -s|grep -v Iface|grep -v lo|awk '{print $1}'")
        interface=f.readlines()
        f.close()
        ip_dic={}
        ip_list=[]
        for ifname in interface:
                ifname=ifname.strip()
                s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
                ipaddr=socket.inet_ntoa(fcntl.ioctl(
                        s.fileno(),
                        0x8915,  # SIOCGIFADDR
                        struct.pack('256s', ifname[:15])
                )[20:24])
                ip_dic[ifname]=ipaddr
                ip_list.append(ipaddr)
        #return ip_list
        return ip_dic

 

if __name__ == '__main__':

    print get_ip_address('eth0')

    print get_ip()