密码验证-Python [英] Validation of a Password - Python

问题描述

所以我必须创建验证密码是否正确的代码:

So I have to create code that validate whether a password:

• 长度至少为8个字符
• 包含至少1个数字
• 至少包含1个大写字母

这是代码:

def validate():
    while True:
        password = input("Enter a password: ")
        if len(password) < 8:
            print("Make sure your password is at lest 8 letters")
        elif not password.isdigit():
            print("Make sure your password has a number in it")
        elif not password.isupper(): 
            print("Make sure your password has a capital letter in it")
        else:
            print("Your password seems fine")
            break

validate()

我不确定这是怎么回事，但是当我输入包含数字的密码时-它会不断告诉我我需要一个包含数字的密码.有解决方案吗?

I'm not sure what is wrong, but when I enter a password that has a number - it keeps telling me that I need a password with a number in it. Any solutions?

推荐答案

您可以将re模块用于正则表达式.

You can use re module for regular expressions.

有了它，您的代码将如下所示:

With it your code would look like this:

import re

def validate():
    while True:
        password = raw_input("Enter a password: ")
        if len(password) < 8:
            print("Make sure your password is at lest 8 letters")
        elif re.search('[0-9]',password) is None:
            print("Make sure your password has a number in it")
        elif re.search('[A-Z]',password) is None: 
            print("Make sure your password has a capital letter in it")
        else:
            print("Your password seems fine")
            break

validate()

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