音乐机器人discord.py的队列系统

Question

我正在尝试用discord.py制作一个音乐机器人，它混合了教程和我的大脑。它可以工作，但是如果您在播放当前歌曲时尝试播放另一首歌曲，则会出现错误。为了解决这个问题，我尝试添加一个队列系统，但我尝试过的所有教程似乎都太复杂，完全适合它们的代码类型，而不是我的代码类型。当当前歌曲结束时，我设法让一些事情发生，但我不知道如何调用下一首歌曲。我曾考虑使用队列模块，但无法使其工作。这是我的密码：

@client.command()
async def play(ctx, url : str):
    
    
    
    
      song_there = os.path.isfile("song.mp3")
      try:
          if song_there:
              os.remove("song.mp3")
      except PermissionError:
          await ctx.send("Wait for the current playing music to end or use the 'stop' command")
          return
      voice = discord.utils.get(client.voice_clients, guild=ctx.guild)
      print(voice)
      if voice == None:
        search_keyword = url
        html = urllib.request.urlopen("https://www.youtube.com/results?search_query=" + search_keyword)
        video_ids = re.findall(r"watch\?v=(\S{11})", html.read().decode())
        finished_url = ("https://www.youtube.com/watch?v=" + video_ids[0])
        video = pafy.new(finished_url)
        value = video.length
       
        if value > 420:
          await ctx.send('Sorry, 7 minute maximum length on videos')
        else:
          voiceChannel = ctx.author.voice.channel
          await voiceChannel.connect()
          voice = discord.utils.get(client.voice_clients, guild=ctx.guild)
          ydl_opts = {
              'format': 'bestaudio/best',
              'postprocessors': [{
                  'key': 'FFmpegExtractAudio',
                  'preferredcodec': 'mp3',
                  'preferredquality': '192',
              }],
          }
          with youtube_dl.YoutubeDL(ydl_opts) as ydl:
              ydl.download([finished_url])
          for file in os.listdir("./"):
              if file.endswith(".mp3"):
                  os.rename(file, "song.mp3")
          voice.play(discord.FFmpegPCMAudio("song.mp3"))
          timer = value
          while True:
            asyncio.sleep(1)
            timer -= 1 
            if timer < 0:
              #this is where I could put something that calls up the next track in the queue if there is one as this is where the current song ends
         
        
     
        

      
        

      else:
        search_keyword = url
        html = urllib.request.urlopen("https://www.youtube.com/results?search_query=" + search_keyword)
        video_ids = re.findall(r"watch\?v=(\S{11})", html.read().decode())
        finished_url = ("https://www.youtube.com/watch?v=" + video_ids[0])
        video = pafy.new(finished_url)
        value = video.length
             
        if value > 420:
          await ctx.send('Sorry, 7 minute maximum length on videos')
        else:
          ydl_opts = {
              'format': 'bestaudio/best',
              'postprocessors': [{
                  'key': 'FFmpegExtractAudio',
                  'preferredcodec': 'mp3',
                  'preferredquality': '192',
              }],
          }
          with youtube_dl.YoutubeDL(ydl_opts) as ydl:
              ydl.download([finished_url])
          for file in os.listdir("./"):
              if file.endswith(".mp3"):
                  os.rename(file, "song.mp3")
          voice.play(discord.FFmpegPCMAudio("song.mp3"))
          timer = value
          while True:
            asyncio.sleep(1)
            timer -= 1 
            if timer < 0:
              #this is where I could put something that calls up the next track in the queue if there is one as this is where the current song ends

任何帮助都将不胜感激