python获取ip地址

python获取ip地址代码：

#!/usr/bin/python
#conding:utf-8

import socket,fcntl,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])

print get_ip_address('lo')
print get_ip_address('wlan0')

执行结果：

$ python getip.py
127.0.0.1
192.168.2.102

本机信息：

$ ifconfig

lo        Link encap:Local Loopback
inet addr:127.0.0.1  Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING  MTU:16436  Metric:1
RX packets:35657 errors:0 dropped:0 overruns:0 frame:0
TX packets:35657 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:3487215 (3.4 MB)  TX bytes:3487215 (3.4 MB)

wlan0     Link encap:Ethernet  HWaddr 20:7c:8f:69:f2:b5
inet addr:192.168.2.102  Bcast:192.168.2.255  Mask:255.255.255.0
inet6 addr: fe80::227c:8fff:fe69:f2b5/64 Scope:Link
UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
RX packets:14399 errors:0 dropped:0 overruns:0 frame:0
TX packets:17826 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:6866206 (6.8 MB)  TX bytes:2687637 (2.6 MB)