Quote from site :
This is a recipe on how to easily run multiple Python
web applications using uwsgi server (in emperor mode) and behind nginx.
Most existing docs and blogs would show how to manually start uwsgi to
run a single app. In this post, I'll show how to configure uwsgi as a
system service (with upstart) capable of serving multiple python WSGI
compliant web applications by simply placing them in a standard location
and adding an standard xml file.
http://jawher.me/2012/03/16/multiple-python-apps-with-nginx-uwsgi-emperor-upstart/