Plays a sound when a user joins a voice channel

tacobell.py

import os
import discord
from dotenv import load_dotenv

load_dotenv()
TOKEN = os.getenv('DISCORD_TOKEN')

client = discord.Client()

@client.event
async def on_member_join(user):
    voice_channel = user.voice.voice_channel
    if voice_channel == None
        await client.say('User is not in a channel.')
        return
    
    vc = await client.join_voice_channel(voice_channel)
    player = vc.create_ffmpeg_player('tacobell.mp3')
    player.start()
    
    while not player.is_done():
        await asyncio.sleep(1)

    player.stop()
    await vc.disconnect()

client.run(TOKEN)