Python jobs: Writing login Interfaces

Python jobs: Writing login Interfaces

Requirements:

1. Require user to enter user name and password

2. Authentication successful Display welcome information

3. Enter the error more than three times to lock the user

1 #!/usr/bin/env python2 #_*_coding:utf-8_*_3 #__author__ = ' Administrator '4 5Static=True6login=False7Username="'8Lockfile=r'Lock.txt'9  forIinchRange (3):TenUsername=input ("Please input your username:") OnePassword=input ("Please input your password:") A  -      -With open (Lockfile,'R') as LockObject: theusers=Lockobject.readlines () -           forLine2inchUsers: -Line2=line2.strip ('\ n') -  +              ifLine2 = =Username: -Static=False +                   Break A  at     ifstatic==False: -          Break -  -  -With open (r'User.txt','R') as User: -users=User.readlines () in      forLineinchUsers: -userinfo="|". Join ([Username,password]) toLine=line.strip ('\ n') +         ifUserInfo = =Line : -             Print('Welcome {username}!'. Format (username=username)) thelogin=True *              Break $ Panax Notoginseng     ifLogin: -          Break the     Else: +          Print('Invalid username and password!\n') A  the iflogin==False: +     ifStatic: -With open (Lockfile,'a') as LockObject: $line_string="'. join ([Username,'\ n']) $ lockobject.write (line_string) -     Print("lock!")

Python jobs: Writing login Interfaces