(You are using a virtualenv, right?)
At the command line, install riko using either pip
(recommended)
pip install riko
or easy_install
easy_install riko
If you have virtualenvwrapper installed, at the command line type:
mkvirtualenv riko
pip install riko
Or, if you only have virtualenv
installed:
virtualenv ~/.venvs/riko
source ~/.venvs/riko/bin/activate
pip install riko
Otherwise, you can install globally:
pip install riko