题解 | 密码强度等级

password = input()

def psw_score(psw):
    # 1. Length check:
    len_score = 0
    psw_len = len(psw)
    if psw_len >= 8:
        len_score = 25
    elif psw_len >= 5:
        len_score = 10
    else:
        len_score = 5
    
    # 2. Letters check:
    let_score = 0
    upper_count = 0
    lower_count = 0
    for char in psw:
        if char.isupper():
            upper_count += 1
        elif char.islower():
            lower_count += 1
    if upper_count >= 1 and lower_count >= 1:
        let_score = 20
    elif upper_count >= 1 and lower_count == 0:
        let_score = 10
    elif upper_count == 0 and lower_count >= 1:
        let_score = 10
    else:
        let_score = 0
    
    # 3. Numbers check:
    num_score = 0
    digit_count = 0
    for char in psw:
        if char.isdigit():
            digit_count += 1
    if digit_count > 1:
        num_score = 20
    elif digit_count == 1:
        num_score = 10
    else:
        num_score = 0

    # 4. Symbols check:
    sym_score = 0
    sym_count = 0
    spe_chars = r'!"#$%&\'()*+,-./:;<=>?@[\]^_`{|}~'
    for char in psw:
        if char in spe_chars:
            sym_count += 1
    if sym_count > 1:
        sym_score = 25
    elif sym_count == 1:
        sym_score = 10
    else:
        sym_score = 0 

    # 5. Bonus:
    bonus = 0
    if (let_score == 20) and (num_score >= 10) and (sym_score >= 10):
        bonus = 5
    elif (let_score == 10) and (num_score >= 10) and (sym_score >= 10):
        bonus = 3
    elif (len_score == 10) and (num_score >= 10) and (sym_score == 0):
        bonus = 2
    else:
        bonus = 0

    total_score = len_score + let_score + num_score + sym_score + bonus

    if total_score >= 90:
        return "VERY_SECURE"
    elif total_score >= 80:
        return "SECURE"
    elif total_score >= 70:
        return "VERY_STRONG"
    elif total_score >= 60:
        return "STRONG"
    elif total_score >= 50:
        return "AVERAGE"
    elif total_score >= 25:
        return "WEAK"
    else:
        return "VERY_WEAK" 

print(psw_score(password))