Python first day job login three error lock account

Write so rotten, are embarrassed to start, later think after all is the first PY program, or at work time secretly written, take out to do a memorial it,

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# -*- coding:utf-8 -*-#!/usr/bin/env pythonimport osimport os.pathusername  =  "Liulidong" password =  "123456" K = 1for i in range (Ten):       if not os.path.exists ('/tmp/lock.txt '): #  determine if the dictionary file exists               os.system ("Touch /tmp/lock.txt")        output = open ('/tmp/lock.txt ', ' r ')  #  open dictionary file        read = output.read ()                 #  Reading dictionary content       arr= read.split (';')                 #以, separating, converting strings to arrays        user = input ("please input your username: ")    #  Enter user name &nbsP;     passwd = input ("please input your password: ")   #输入密码       for n in range (0, len (arr)):           if user == arr[n]:               print ("your name is lock  Please mail to administrator ")                os._exit (1)       #循环判断用户是否在字典中        if username == user and password == passwd:           print ("Welcome to linux")              #输入正确返回欢迎信息           break       else:          k+=1           print ("Your name or password is wrong")            if k > 3:                          #   output three records inside the file              output =  open ('/tmp/lock.txt ', ' a ')               Output.write (user +  '; ')              output.close ()               print ("you test too many,your  Username will be lock ")               break 

Please execute this script with Python3 under Linux

Python first day job login three error lock account