密碼驗證 - 至少一個大寫，一個小寫字母和一個數字

Question

如何驗證輸入以檢查它是否至少包含1個數字，一個大寫字母和一個小寫字母。我看過類似的問題，他們似乎並不完全是我需要的東西，例如只檢查數字和拒絕信件，除了一個以上的數字，大寫字母和小寫字母外，我需要它。

Answer 1

您可以使用assert與any()和string結合內置模塊是這樣的：

import string 

password = '1Aa' 

try: 
    assert any(i in string.ascii_lowercase for i in password) 
    assert any(i in string.ascii_uppercase for i in password) 
    assert any(i in string.digits for i in password) 
except AssertionError as e: 
    raise Exception('Invalid password!') 

Answer 2

import re 
def passwordagain(): 
password() 

def password(): 
     print() 
     password = input("Enter a secure password: ") 
     if re.search('[A-Z]',password) is None: 
      print("Password must contain at least one capital letter and one number.") 
      passwordagain() 
     elif re.search('[0-9]',password) is None: 
      print("Password must contain at least one capital letter and one number.") 
      passwordagain() 
     elif re.search('[a-z]',password) is None: 
      print("Password must contain at least one capital letter and one number.") 
      passwordagain()   
     else: 
      filename = ("password."); 
      with open (filename, "w") as f: 
       f.write (password) 
      print() 
      print("Password saved")