A simple example of how to use cogs with discord py 2.0.0

Now with changes to async initialisation in discord.py, see more here:

https://gist.github.com/Rapptz/6706e1c8f23ac27c98cee4dd985c8120

Installing

pip install -U git+https://github.com/Rapptz/discord.py

(Version used in this repository: discord.py 2.0.0a3882+g934ab41)