run.py

# coding=utf-8
import os

from aiohttp import AsyncResolver, ClientSession, TCPConnector

from discord import Game
from discord.ext.commands import AutoShardedBot, when_mentioned_or

from bot.formatter import Formatter
from bot.utils import CaseInsensitiveDict

bot = AutoShardedBot(
    command_prefix=when_mentioned_or(
        ">>> self.", ">> self.", "> self.", "self.",
        ">>> bot.", ">> bot.", "> bot.", "bot.",
        ">>> ", ">> ", "> ",
        ">>>", ">>", ">"
    ),  # Order matters (and so do commas)
    activity=Game(name="with snekky sneks"),
    help_attrs={"aliases": ["help()"]},
    formatter=Formatter()
)

# Make cog names case-insensitive
bot.cogs = CaseInsensitiveDict()

# Global aiohttp session for all cogs - uses asyncio for DNS resolution instead of threads, so we don't *spam threads*
bot.http_session = ClientSession(connector=TCPConnector(resolver=AsyncResolver()))

# Internal/debug
bot.load_extension("bot.cogs.logging")
bot.load_extension("bot.cogs.security")


# Commands, etc
bot.load_extension("bot.cogs.snakes")

bot.run(os.environ.get("BOT_TOKEN"))

bot.http_session.close()  # Close the aiohttp session when the bot finishes running