This tools generate a html that shows all openstack repositories' detail.
By reading this information you learn some thing about the ecosystem of OpenStack's Big Tent.
git clone http://github.com/gtt116/openstack-family
virtualenv .venv
source .venv/bin/activate
pip install -r requirements.txt
python main.py
# .. wait for a minutes
python -mSimpleHTTPServer 8000
# Open a browser to view openstack.html
An example demo from here
There is no harder work than this tool. It got all repositories from github api, then parse into a beautiful html page.
The only one python requirement is mako.