Python Login Verification Applet script

Python Login Verification Applet script

Flowchart of the Script program:

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#!/usr/bin/env python# _*_ coding:utf-8 _*_# Enter the above line to recognize the Chinese character annotation ## --------------------- ----------------------------------------------------------# filename:    login.py#  revision:    1.0# date:        2017/09/ 20# author:      xad# email:        [email protected]# website:     http://onenice.blog.51cto.com/#  description: check login# notes:       ~# ------------- ------------------------------------------------------------------# copyright:   2017 (c) xad# license:     gplimport sysusername =  ' XAD ' password =   ' xad123 ' retry_counter = 0#login_status =  ' NO ' login_status =  ' YES ' # Use this to simulate whether the user is online ## login verification part  #while  retry_counter <3 : Exit #  #当retry_counter   more than 3 times  user = raw_input (' Username: '). Strip ()   if len (user)  ==0:  # Verify that the input user is empty, then continue the loop, otherwise enter the next validation input #print  "error : username cannot be empty!" Continue  passwd = raw_input (' Password: '). Strip ()   if len (passwd)  ==  0:   #验证输入密码是否为空, is to continue the cycle, otherwise jump out of the loop #print  "error : password cannot be  empty! "   continue  else:if user == username  and  passwd  == password: #验证用户密码是否都正确, it's all right to allow login! #   if login_status ==  ' YES ':       sys.exit (' Sorry ,  user %s has been logining! '  % user )    else:      sys.exit (' welcome %s  logining to system! '  % user ) else:   #retry_counter  = retry_counter + 1  retry_ counter += 1  print  ' wrong username or password, please  Verify your username or password ! \nonly %s more chances! '  %  (3 - retry_counter  )

Python Login Verification Applet script