How to do python user verification-Python Tutorial-php.cn

How to do python user verification

藏色散人

Release： 2019-07-06 10:58:49

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How to authenticate python users?

python user login verification

1. A user list records legal passwords and usernames, a black room list records users who entered incorrectly 3 times,

an intermediate list records all user inputs, and counts whether a certain user Entered incorrectly 3 times

2. Use in to determine whether an element is in a list, and the for loop holds the input verification

#!/usr/bin/python3
 
__author__ = &#39;beimenchuixue&#39;
__blog__ = &#39;http://www.cnblogs.com/2bjiujiu/&#39;
 
 
def login(users_ku):
    lock_list = []                              # 锁定用户库，3次登录失败进入的小黑屋
    median = []                                 # 登录失败的录入中间列表，如果用count数出3次，进入锁定
    while True:
        name = input(&#39;输入你的用户名：&#39;)
        psw = input(&#39;请输入你的密码：&#39;)
         
        if name in lock_list:                   # 判断用户是否进入小黑屋
            print(&#39;此账号锁定，不能再用此账号登陆&#39;)
            continue
        if [name, psw] in users_ku:             # 判断用户输入的合法性
            print(&#39;登录成功&#39;)
            break
        else:
            median.append(name)                 # 用户名录入
            print(&#39;账号或者密码输入错误,请重新输入&#39;)
        if median.count(name) == 3:             # 同用户3次登录失败进入的小黑屋
            lock_list.append(name)              # 进入小黑屋
 
 
if __name__ == &#39;__main__&#39;:
    # 用户验证密码库
    users_ku = [[&#39;name1&#39;, &#39;psw1&#39;], [&#39;name2&#39;, &#39;psw2&#39;]] 
    login(users_ku)

Copy after login

Requirements met:

1. User Different input orders can catch whether you enter 3 times

2. If you enter incorrectly 3 times, you will no longer be allowed to log in

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