The os.walk for pathlib.Paths using generators

pathlib_walk.py

import pathlib

def path_walk(top_path):
    if not top_path.is_dir(): return top_path
    top_queue = [top_path] # using list for a queue here, but any collection with the same offer / pop can do 
    while len(top_queue) != 0:
        current_dir = top_queue[0]
        for filepath in current_dir.iterdir():
            if filepath.is_dir():
                top_queue.append(filepath)
            elif filepath.is_file():
                yield filepath
        top_queue.pop(0)

if __name__ == "__main__":
    path = pathlib.Path(".")
    lua_files_from_the_current_dir_and_down = (p for p in path_walk(path) if p.suffix == ".lua")