本文實例講述了python實現自動更換ip的方法。分享給大家供大家參考。具體實現方法如下：

#!/usr/bin/env python#-*- encoding:gb2312 -*-# Filename: IP.pyimport sitecustomizeimport _winregimport ConfigParserfrom ctypes import *print '正在進行網絡適配器檢測，請稍候…'printnetCfgInstanceID = Nonehkey = _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE, /r'System/CurrentControlSet/Control/Class/{4d36e972-e325-11ce-bfc1-08002be10318}')keyInfo = _winreg.QueryInfoKey(hkey)# 尋找網卡對應的適配器名稱 netCfgInstanceIDfor index in range(keyInfo[0]):hSubKeyName = _winreg.EnumKey(hkey, index)hSubKey = _winreg.OpenKey(hkey, hSubKeyName)try:hNdiInfKey = _winreg.OpenKey(hSubKey, r'Ndi/Interfaces')lowerRange = _winreg.QueryValueEx(hNdiInfKey, 'LowerRange')# 檢查是否是以太網if lowerRange[0] == 'ethernet':driverDesc = _winreg.QueryValueEx(hSubKey, 'DriverDesc')[0]print '檢測到網絡適配器名：', driverDescnetCfgInstanceID = _winreg.QueryValueEx(hSubKey, 'NetCfgInstanceID')[0]print '檢測到網絡適配器ID：', netCfgInstanceIDif netCfgInstanceID == None:print '沒有找到網絡適配器，程序退出'exit()break_winreg.CloseKey(hNdiInfKey)except WindowsError:print r'Message: No Ndi/Interfaces Key'# 循環結束，目前只提供修改一個網卡IP的功能_winreg.CloseKey(hSubKey)_winreg.CloseKey(hkey)# 通過修改注冊表設置IPstrKeyName = 'System//CurrentControlSet//Services//Tcpip//Parameters//Interfaces//' + netCfgInstanceIDprint '網絡適配器的注冊表地址是：/n', strKeyNamehkey = _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE, /strKeyName, /0, /_winreg.KEY_WRITE)config = ConfigParser.ConfigParser()printprint '正在打開IP.ini配置文件…'config.readfp(open('IP.ini'))IPAddress = config.get("school","IPAddress")SubnetMask = config.get("school","SubnetMask")GateWay = config.get("school","GateWay")DNSServer1 = config.get("school","DNSServer1")DNSServer2 = config.get("school","DNSServer2")DNSServer = [DNSServer1,DNSServer2]print '配置文件內設定的信息如下，請核對：'printprint 'IP地址：', IPAddressprint '子關掩碼：', SubnetMaskprint '默認網關：', GateWayprint '主DNS服務器：', DNSServer1print '次DNS服務器：', DNSServer2printres = raw_input('現在，請您決定：輸入1，則將配置文件寫入系統；輸入2，則將現有的系統設定還原為全部自動獲??；否則程序退出：')if str(res) == '1':try:_winreg.SetValueEx(hkey, 'EnableDHCP', None, _winreg.REG_DWORD, 0x00000000)_winreg.SetValueEx(hkey, 'IPAddress', None, _winreg.REG_MULTI_SZ, [IPAddress])_winreg.SetValueEx(hkey, 'SubnetMask', None, _winreg.REG_MULTI_SZ, [SubnetMask])_winreg.SetValueEx(hkey, 'DefaultGateway', None, _winreg.REG_MULTI_SZ, [GateWay])_winreg.SetValueEx(hkey, 'NameServer', None, _winreg.REG_SZ, ','.join(DNSServer))except WindowsError:print 'Set IP Error'exit()_winreg.CloseKey(hkey)print '切換成功！重置網絡后即可生效'elif str(res) == '2':try:_winreg.SetValueEx(hkey, 'EnableDHCP', None, _winreg.REG_DWORD, 0x00000001)_winreg.SetValueEx(hkey, 'T1', None, _winreg.REG_DWORD, 0x00000000)_winreg.SetValueEx(hkey, 'T2', None, _winreg.REG_DWORD, 0x00000000)_winreg.SetValueEx(hkey, 'NameServer', None, _winreg.REG_SZ, None)_winreg.SetValueEx(hkey, 'DhcpConnForceBroadcastFlag', None, _winreg.REG_DWORD, 0x00000000)_winreg.SetValueEx(hkey, 'Lease', None, _winreg.REG_DWORD, 0x00000000)_winreg.SetValueEx(hkey, 'LeaseObtainedTime', None, _winreg.REG_DWORD, 0x00000000)_winreg.SetValueEx(hkey, 'LeaseTerminatesTime', None, _winreg.REG_DWORD, 0x00000000)except WindowsError:print 'Set IP Error'exit()_winreg.CloseKey(hkey)print '切換成功！重置網絡后即可生效'else:print '用戶手動取消，程序退出'exit('')