如何递归列出某个位置的所有目录,广度优先？

import os

def list_dirs_breadth_first(start_path):
    dir_queue = [start_path]
    while dir_queue:
        current_dir = dir_queue.pop(0)
        print(current_dir)
        for entry in os.scandir(current_dir):
            if entry.is_dir():
                dir_queue.append(entry.path)

start_path = '/path/to/start'
list_dirs_breadth_first(start_path)