检查用户是否在语音通道中不和谐

问题描述：

我正在制作一个可以在vc中播放声音的机器人.我已经编写了加入通话的代码，播放mp3，然后退出通话，但是当用户不在通话中时，出现此错误:

I am making a bot that will play sounds in a vc. I have made the code to join the call, play the mp3, then leave the call but when the user is not in a call I get this error:

Ignoring exception in command ring:
Traceback (most recent call last):
  File "C:\Users\max\AppData\Roaming\Python\Python39\site-packages\discord\ext\commands\core.py", line 85, in wrapped
    ret = await coro(*args, **kwargs)
  File "C:\Users\max\OneDrive\Desktop\Code\DiscordBots\Nokia\Nokia.py", line 91, in ring
    channel = ctx.author.voice.channel
AttributeError: 'NoneType' object has no attribute 'channel'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "C:\Users\max\AppData\Roaming\Python\Python39\site-packages\discord\ext\commands\bot.py", line 903, in invoke
    await ctx.command.invoke(ctx)
  File "C:\Users\max\AppData\Roaming\Python\Python39\site-packages\discord\ext\commands\core.py", line 859, in invoke
    await injected(*ctx.args, **ctx.kwargs)
  File "C:\Users\max\AppData\Roaming\Python\Python39\site-packages\discord\ext\commands\core.py", line 94, in wrapped
    raise CommandInvokeError(exc) from exc
discord.ext.commands.errors.CommandInvokeError: Command raised an exception: AttributeError: 'NoneType' object has no attribute 'channel'

这是我到目前为止的代码:

This is my code that I have so far:

@client.command()
async def ring(ctx):
    channel = ctx.author.voice.channel
    vc = await channel.connect()
    vc.play(discord.FFmpegPCMAudio("Audio/NokiaRingtone.mp3"))
    time.sleep(5)
    await ctx.voice_client.disconnect()

还有一件事情；我想知道为什么当我的机器人与vc断开连接时，如何在聊天中获取这些信息:

One more thing; I was wondering why I get these in the chat when my bot disconnects from the vc:

websocket connection is closing.
websocket connection is closing.
websocket connection is closing.

如果有人可以帮助我检查用户是否在语音通道中，并告诉我为什么在控制台中获得那三行效果很好呢.

If anyone could help me check if the user is in a voice channel and tell me why I get those three lines in my console that would be great.

答

您可以使用if语句简单地检查它是否不是nonetype.

You can simply check if it's not a nonetype with an if statement

@bot.command()
async def foo(ctx):
    voice_state = ctx.member.voice

    if voice_state is None:
        # Exiting if the user is not in a voice channel
        return await ctx.send('You need to be in a voice channel to use this command')

    # Put the rest of the code here

检查用户是否在语音通道中不和谐

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