Python创建5个目录且每层目录中含有5个目录 目录名为128位随机字母

# 我理解的题意是，所有新建的文件夹都应该是128位字母名的
import os, random

s = 'abcdefghijklmnopqrstuvwxyz'

def rand_name() -> str:
    '''make 1 name by random 128 letters'''
    name_list = [s[random.randint(0, 25)] for _ in range(128)]
    return "".join(name_list)

def make_5_dirs(dir_path: str):
    '''make 5 directories'''
    for _ in range(5):
        name = dir_path + rand_name()
        os.mkdir(name)

def rm_r(dir_path: str):
    '''remove all things in the given path by recurrsion'''
    for root, dirs, files in os.walk(dir_path, topdown=False):
        for file in files:
            file_path = os.path.j