Python Multi-user authentication

Basic requirements:

• Let the user enter the user name password
• Show welcome message after successful authentication
• Exit the program after a three-time error

• Can support multiple users login (prompt, through the list to save multiple account information)
• User 3 authentication failed, quit the program, start the program again when trying to log in, or locked state, you need to save the user locked state to the file

  1user_tab={2     'User01':{"Pass":"123","Count": 0},3     'User02':{"Pass":"123","Count": 0},4     'user03':{"Pass":"123","Count": 0},5 }6  whileTrue:7Username=input ("Please input your name:")8     if  notUsernameinchUser_tab:9         Print("user does not exist, please check the user name, thank you! ")Ten         Continue Onef = open ('User.txt','R') ABB =F.read (). Splitlines () -     ifUsernameinchBB: -         Print('The account has been locked! Please contact the Administrator!!! ') the         Continue -  -Password=input ("Please input your password:") -  +     ifuser_tab[username]['Count'] > 2: -         Print('too many password errors entered! account is locked!!! ') +With open ('User.txt','A +') as F: A f.write (username) atF.write ('\ n') -          Break -     ifPassword = = user_tab[username]['Pass']: -         Print('Welcome to the landing system', username) -          Break -     Else: in         Print("bad password, please try again! ") -user_tab[username]['Count']+=1 to         Continue

Python Multi-user authentication