make Discord bot / Discord botを作ろう

it's my memorandum.
respond to specific commands within Discord & when someone comes in the channel, bot write guidance to #general.

自分に対する備忘録。
Discord内で特定のコマンドに反応　＆　誰かがチャンネルに入ってきたら #generalに案内文を書くbotを作成する。

####### # coding: Shift_JIS
####### # coding: cp932
####### # coding: EUC-JP
####### # coding: UTF-8

import discord
import asyncio

public_channel = 'general'
mod_channel = None

client = discord.Client()

@client.event
async def on_ready():
print('Logged in as')
print(client.user.name)
print(client.user.id)
print('------')

@client.event
async def on_message(message):
if message.content.startswith('!test'):
counter = 0
public_channel = message.channel
tmp = await client.send_message(message.channel, 'Calculating messages...')
async for log in client.logs_from(message.channel, limit=100):
if log.author == message.author:
counter += 1

    await client.edit_message(tmp, 'You have {} messages.'.format(counter))
    print(public_channel)
elif message.content.startswith('!sleep'):
    await asyncio.sleep(5)
    await client.send_message(message.channel, 'don't sleep')

@client.event
async def on_member_join(member):
print(member)
channel_bot_test = [channel for channel in client.get_all_channels() if channel.name == 'general'][0]
await client.send_message(channel_bot_test, 'welcome sentence')

client.run('write your bot ID')