linux及windows下使用Python获取IP地址

#使用socket模块
import socket
#得到本地ip
localIP = socket.gethostbyname(socket.gethostname())
print"local ip:%s "%localIP
         
ipList = socket.gethostbyname_ex(socket.gethostname())for i in ipList:
    if i != localIP:
       print"external IP:%s"%i

#引入socket模块
import socket
myname = socket.getfqdn(socket.gethostname())
myaddr = socket.gethostbyname(myname)

import re,urllib2
from subprocess import Popen, PIPE
        
print "本机的私网IP地址为：" + re.search('\d+\.\d+\.\d+\.\d+',Popen('ipconfig', stdout=PIPE).stdout.read()).group(0)
        
#利用其他网站提供的接口，使用urllib2获取其中的ip
print "本机的公网IP地址为：" +re.search('\d+\.\d+\.\d+\.\d+',urllib2.urlopen("http://www.ip138.com").read()).group(0)

import socket
import fcntl
import struct
      
def get_ip_address(ifname):
    skt = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    print skt
    pktString = fcntl.ioctl(skt.fileno(), 0x8915, struct.pack('256s', ifname[:15]))
    print pktString
    ipString  = socket.inet_ntoa(pktString[20:24])
    print ipString
    return ipString
      
print get_ip_address('lo')
print get_ip_address('eth1')