解决谷歌搜索技术文章时打不开网页问题的python脚本

2020-02-23 04:49:28

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来源：转载

供稿：网友

注意：Win7或者WIn8用户要用管理员权限执行。

项目地址：http://code.google.com/p/my-hosts-file/downloads

代码如下:
import urllib
    import os
    import shutil

    hostspath = "C://Windows//System32//drivers//etc"
    savepath = hostspath + "//hostsave"

    def download_hosts(url = "http://my-hosts-file.googlecode.com/svn/trunk/hosts"):
        os.chdir(hostspath)
        if os.getcwd() != hostspath:
            print("Switch Dir to System32 Error,check permission!/npwd:"+os.getcwd())
            exit()
        try:
            urllib.urlretrieve(url, "hostsave")
        except:
            print '/t Error when retrieveing hosts file from url: ', url

    def backup_hosts():
        shutil.copy("hosts","hosts.bak")

    def replace_hosts():
        shutil.copy("hostsave", "hosts")
        print("Replace original hosts file finished, then flush dns...")
        os.remove(savepath)
        os.system("ipconfig /flushdns")

    def main():
        download_hosts()
        backup_hosts()
        replace_hosts()
    if __name__ == '__main__':
        main()

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