【python】获取本机的hostname以及外网ip

1 得到外网IP地址
import re,urllib2
class Getmyip:
    def
getip(self):
        try:
            myip
= self.visit("http://www.ip138.com/ip2city.asp")
            return
myip
        except:
            try:
                myip
= self.visit("http://www.bliao.com/ip.phtml")
            except:
                try:
                    myip
= self.visit("http://www.whereismyip.com/")
                except:   
                    myip
= "So sorry!!!"
                    return
myip
   
    def
visit(self,url):
        opener
= urllib2.urlopen(url)
        if
url == opener.geturl():
            str
= opener.read()
            asd=re.search('\d+\.\d+\.\d+\.\d+',str).group(0)
            return
asd
       
getmyip
= Getmyip()
localip = getmyip.getip()
print localip

2 获取本地IP
2.1 windows和linux下
import
socket

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
2.2 linux下
import
socket,fcntl,struct

def get_ip_address(ifname):
        s=socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
        return
socket.inet_ntoa(fcntl.ioctl(