Sample Code for switching the hosts file in python

For Windows 7 7 and later versions, you must use the administrator privilege.
Copy codeThe Code is as follows:
#-*-Coding: UTF-8 -*-
Import OS
Import glob
Import shutil

Def format_file_list (files ):
All_files_str = ""
For I in range (len (files )):
All_files_str + = str (I) + ":" + files [I] + "\ n"
Return all_files_str

Hosts_path = "C :\\ Windows \ System32 \ drivers \ etc"
Files = OS. listdir (hosts_path)
OS. chdir (hosts_path)

If OS. getcwd ()! = Hosts_path:
Print ("Switch Dir to System32 Error, check permission! \ Npwd: "+ OS. getcwd ())
Exit ()

Hosts_files = glob. glob ("host *")
Choosed_file_idx = int (input ("Choose Hosts File Index: \ n" + format_file_list (hosts_files )))
Files_num = len (hosts_files)

If (choosed_file_idx <0 or choosed_file_idx> = files_num ):
Print ("Please choose a file in the lists! ")
Exit ()

Print ("Choosed idx: {0}, file: {1}.". format (choosed_file_idx, hosts_files [choosed_file_idx])
Shutil. copy ("hosts", "hosts. bak ")
Shutil. copy (hosts_files [choosed_file_idx], "hosts ")
Print ("Copy OK, then flush dns ...")
OS. system ("ipconfig/flushdns ")