如何让我的程序返回密码强度(How can i get my program to return the password strength)

 我正在努力使用我的密码评估程序。 我怎样才能确保当我插入密码时，我的程序会返回密码强度。 当我运行这个程序时，它说password_strength存储在.....）是我在程序结束时调用的返回错误吗？ 
 
print ("Welcome to this password rater program")
print ("Your password needs to have a minimum of 6 characters with a maximum of 20 characters.")
print ("Your password can contain lowercase and uppercase characters, numbers and special characters")
print("")


password = input("Please insert your password: ")


def check_len(password):
    l = len(password)
    if 6 < l < 20:
        x = check_char(password, l)
    else:
        x =  0
    return x


def check_char(password, l):
    for i in range(l):
        ascii = ord(password[i])
        num = 0                                
        upper = 0                               
        symbols = 0
        lower = 0
        space = 0

        if  96 < ascii < 123:      
            lower = 15
        elif 47 < ascii < 58:     
            num = 25
        elif 64 < ascii < 91:     
            upper = 25
        elif ascii == 32:
            space = 30
        else:                               
            symbols = 25
        total = ((lower + num + upper + space + symbols) * len(password))
    return total


def password_strength(total):
    if total >= 1000:
        print("Your chosen password is Very strong")
    elif 700 < total < 999:
        print("Your chosen password is strong")
    elif 500 < total < 699:
        print("your chosen password is medium")
    elif total <= 500:
        print("Your chosen password is weak")
    return total


strength = check_len(password)
print(password_strength(strength))

I'm struggling with my password rater program. How can i make sure that when i insert a password, my program returns the password strength. When i run this program it says that password_strength is stored at .....) is the return that i call at the end of my program wrong?
 
print ("Welcome to this password rater program")
print ("Your password needs to have a minimum of 6 characters with a maximum of 20 characters.")
print ("Your password can contain lowercase and uppercase characters, numbers and special characters")
print("")


password = input("Please insert your password: ")


def check_len(password):
    l = len(password)
    if 6 < l < 20:
        x = check_char(password, l)
    else:
        x =  0
    return x


def check_char(password, l):
    for i in range(l):
        ascii = ord(password[i])
        num = 0                                
        upper = 0                               
        symbols = 0
        lower = 0
        space = 0

        if  96 < ascii < 123:      
            lower = 15
        elif 47 < ascii < 58:     
            num = 25
        elif 64 < ascii < 91:     
            upper = 25
        elif ascii == 32:
            space = 30
        else:                               
            symbols = 25
        total = ((lower + num + upper + space + symbols) * len(password))
    return total


def password_strength(total):
    if total >= 1000:
        print("Your chosen password is Very strong")
    elif 700 < total < 999:
        print("Your chosen password is strong")
    elif 500 < total < 699:
        print("your chosen password is medium")
    elif total <= 500:
        print("Your chosen password is weak")
    return total


strength = check_len(password)
print(password_strength(strength))

原文：https://stackoverflow.com/questions/39913740