Python获取当前公网ip并自动断开宽带连接实例代码

今天写了一个获取当前公网ip并且自动断开宽带连接的文件，和大家分享下。

这个文件的具体用途大家懂的，可以尽管拿去用，不过目前只适用于Windows平台，我的Python版本是2.7的，win32ras模块需要下载pywin32。

代码如下：

#!coding: cp936
import win32ras
import time,os

def Connect(dialname, account, passwd):
 dial_params = (dialname, '', '', account, passwd, '')
 return win32ras.Dial(None, None, dial_params, None)

def DialBroadband():
 dialname = '宽带连接' #just a name
 account = '********'
 passwd = '****************'
 try:
   #handle is a pid, for disconnect or showipadrress, if connect success return 0.
   #account is the username that your ISP supposed, passwd is the password.
   handle, result = Connect(dialname, account, passwd)
   if result == 0:
     print "Connection success!"
     return handle, result
   else:
     print "Connection failed, wait for 5 seconds and try again..."
     time.sleep(5)
     DialBroadband()  
 except:
   print "Can't finish this connection, please check out."
   return

def Disconnect(handle):
 if handle != None:
   try:
     win32ras.HangUp(handle)
     print "Disconnection success!"
     return "success"
   except:
     print "Disconnection failed, wait for 5 seconds and try again..."
     time.sleep(5)
     Disconnect()
 else:
   print "Can't find the process!"
   return

def Check_for_Broadband():
 connections = []
 connections = win32ras.EnumConnections()
 if(len(connections) == 0):
   print "The system is not running any broadband connection."
   return
 else:
   print "The system is running ％d broadband connection." ％ len(connections)
   return connections

def ShowIpAddress(handle):
 print win32ras.GetConnectStatus(handle)
 data = os.popen("ipconfig","r").readlines()
 have_ppp = 0
 ip_str = None
 for line in data:
   if line.find("宽带连接")>=0:
     have_ppp = 1
   #if your system language is English, you should write like this:
   #if have_ppp and line.strip().startswith("IP Address"):
   #in othewords, replace the "IPv4 地址" to "IP Address"
   if have_ppp and line.strip().startswith("IPv4 地址"):
     ip_str = line.split(":")[1].strip()
     have_ppp = 0
     print ip_str

#get my ipaddress anf disconnect broadband connection.
def main():
 data = Check_for_Broadband()
 #if exist running broadband connection, disconnected it.
 if data != None:
   for p in data:
     ShowIpAddress(p[0])
     if(Disconnect(p[0]) == "success"):
       print "％s has been disconnected." ％ p[1]
     time.sleep(3)
 else:
   pid, res = DialBroadband()
   ShowIpAddress(pid)
   time.sleep(3)
   Disconnect(pid)
 return "finsh test"

test = main()
print test

基本的注释都有，大家可以自己参考。

来源：http://blog.csdn.net/mingzznet/article/details/52887470