Installing on Linux
On Ubuntu/Debian run these commands, for other distributions there should be equivalent packages.
sudo apt-get install python3 python3-dev python3-pip
Then use pip3 to install the botchallenge module
sudo pip3 install botchallenge
Beacuse the library relies on asyncio, you must use Python 3.4 or higher. If you've kept your system up to date, this should be the default.
If you really want to use Python 3.3 then install the asyncio pip as well.
Next Step
If it's working, connect to the server and get started.