Как сделать простой вход в Python

username = input(' enter your username: ')
if username == 'Put Your Username Here':#change this
   print("checking username")
   time.sleep(0.5)
   print("username is right") 
   password = input(' type your password: ')
   if password == 'Put Your Password Here':#change this
    time.sleep(0.5) 
   else:
    exit()
else:
 exit()    
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