Answers for "how to log when user leaves voice channel discord.py"

python discord bot join voice channel

@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()

discord py fetch channel by id

channel = discord.utils.get(ctx.guild.channels, name=given_name)
channel_id = channel.id