python写的定时播放音乐

import datetime
import os
import time
import pygame
from pygame import mixer
from pygame.locals import USEREVENT


STOPEVENT = USEREVENT + 1 #音乐停止事件
h = 9 # 时间
m = 26 # 分钟
play_long = 60 * 10  # 播放时长


def play(start):
    paths = os.listdir('.') #当前目录下所有文件

    def ismp3(path):
        return path.endswith(".mp3")
    paths = list(filter(ismp3, paths)) #保留mp3文件

    if len(paths) > 0:
        cur = 0
        mixer.init()
        pygame.init()
        mixer.music.set_endevent(STOPEVENT) #设置音乐停止事件
        mixer.music.load(paths[cur].encode("utf-8")) #加载,支持中文文件名
        mixer.music.play() #播放
        #当超过播放时长后，停止播放
        while (datetime.datetime.now() - start).seconds < play_long:
            time.sleep(1) #1秒监听一次事件
            event = pygame.event.poll()

            if event.type == STOPEVENT:
                cur += 1
                if cur != len(paths):
                    mixer.music.load(paths[cur].encode("utf-8")) #支持中文文件名
                    mixer.music.play()
                else:
                    break;
        pygame.quit()


def detect():
    while True:
        now = datetime.datetime.now()
        if now.hour == h and now.minute == m:
            play(now)
        else:
            time.sleep(1)


if __name__ == '__main__':
    detect()