discord py music bot

Question

import discord
from discord.ext import commands
from discord.utils import get
import youtube_dl
from discord import FFmpegPCMAudio

@bot.command(pass_context=True)
async def join(ctx):
    channel = ctx.message.author.voice.voice_channel
    await client.join_voice_channel(channel)

@bot.command(pass_context=True)
async def leave(ctx):
    server = ctx.message.server
    voice_client = client.voice_client_in(server)
    await voice_client.disconnect()

@bot.command(pass_context=True)
async def play(ctx, url):
    guild = ctx.message.guild
    voice_client = guild.voice_client
    player = await voice_client.create_ytdl_player(url)
    players[server.id] = player
    player.start()

bot.run(TOKEN)

Ignoring exception in command join: Traceback (most recent call last): File "C:\Users\hahuibala\AppData\Local\Programs\Python\Python38-32\lib\site-packages\discord\ext\commands\core.py", line 83, in wrapped ret = await coro(*args, **kwargs) File "C:\Users\hahuibala\Desktop\py\bot.py", line 73, in join channel = ctx.message.author.voice.voice_channel AttributeError: 'NoneType' object has no attribute 'voice_channel'

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

Traceback (most recent call last):
  File "C:\Users\hahuibala\AppData\Local\Programs\Python\Python38-32\lib\site-packages\discord\ext\commands\bot.py", line 892, in invoke
    await ctx.command.invoke(ctx)
  File "C:\Users\hahuibala\AppData\Local\Programs\Python\Python38-32\lib\site-packages\discord\ext\commands\core.py", line 797, in invoke
    await injected(*ctx.args, **ctx.kwargs)
  File "C:\Users\hahuibala\AppData\Local\Programs\Python\Python38-32\lib\site-packages\discord\ext\commands\core.py", line 92, in wrapped
    raise CommandInvokeError(exc) from exc
discord.ext.commands.errors.CommandInvokeError: Command raised an exception: AttributeError: 'NoneType' object has no attribute 'voice_channel'

Answer 1

Try this instead of that

@bot.command()
async def join(ctx):
    channel = ctx.author.voice.channel
    await channel.connect()
@bot.command()
async def leave(ctx):
    await ctx.voice_client.disconnect()