为什么我的输入变量会自动添加？python

Question

我制作了这个简单的密码生成器，可以选择密码的长度。但是，它似乎会随机添加长度，因此如果我继续选择长度5，它会偶尔输出10个字符的密码，然后返回到5

import random

randomnums = []
checker = [0, 0, 0, 0] ##Make sure there are upper, lower case, symbols and numbers.

while True:

    length = input("How long do you want your password?: ")
    
    if length.isdigit() == False:
        print("please enter a number..\n")
    elif int(int(length)) < 4:
        print("Please enter a length of 4 or greater...\n")
    else:
        break


while checker[0] == 0 or checker[1] == 0 or checker[2] == 0 or checker[3] == 0:
    for i in range(0,int(length)):
        x = random.randrange(0, 4)    
        if   x ==  1: 
            randomnums.append(random.randrange(0, 10))
            checker[0] = 1
        elif x == 2:
            randomnums.append(random.choice('abcdefghijklmnopqrstuvwxyz'))
            checker[1] = 1
        elif x == 3:
            randomnums.append(random.choice('ABCDEFGHIJKLMNPQRSTUVWXYZ'))
            checker[2] = 1
        else:
            randomnums.append(random.choice('!@#$%^&*()_+:"}|<>?'))
            checker[3] = 1
    

password = ''.join(map(str, randomnums)) ##join list to string
print(password)`

Answer 1

使用此代码可以获得length的任意倍数。它在正文中添加length个字符，直到获得所需的长度。您应该生成一个密码并检查它，如果密码不正确，请重复