密码验证-Python

Question

因此，我必须创建验证密码是否有效的代码：

• 至少8个字符长
• 包含至少1个数字
• 包含至少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()

我不确定出什么问题，但是当我输入带有数字的密码时-它会一直告诉我我需要一个带有数字的密码。有什么办法吗？

Answer 1

您可以将re模块用于正则表达式。

有了它，您的代码将如下所示：

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()