@client.event
async def on_member_join(member):
	serverchannel = member.server.default_channel
	msg = "welcome {0} auf {1}".format(member.mention, member.server.name)
	await client.send_message(serverchannel, msg)


@client.event
async def on_member_remove(member):
	serverchannel = member.server.default_channel
	msg = "Bye Bye {0}".format(member.mention)
	await client.send_message(serverchannel, msg)