Discord chat exporter

DiscordChatExport.py

import logging
import discord
import asyncio
import datetime
logging.basicConfig(level=logging.INFO)
client = discord.Client()

# You need discord.py rewrite.
# pip3 install -U git+https://github.com/Rapptz/discord.py@rewrite

FILENAME="chatlog.txt"
USERID=#ID in int form
TOKEN="mfa.something"

@client.event
async def on_ready():
    print('Logged in as')
    print(client.user.name)
    print(client.user.id)
    print('------')
    await asyncio.sleep(3)
    chan = client.get_user(USERID)
    with open(FILENAME, "a") as myfile:
        async for log in chan.history(limit=None):
            text = "["+str(log.created_at.timestamp())+ "]<" + log.author.name + ">" + log.clean_content
            print(text)
            myfile.write(text+"\n")
    print("done")
    exit()

client.run(TOKEN, bot=False)