Autodocumenting Python using Sphinx
To make things easier you can use this script (look at the bottom of the page for the last version): http://bitbucket.org/birkenfeld/sphinx/issue/98/add-the-autogenerate-script-to-sphinx
This script will parse your packages/modules and generate all the rest files necessary to build the doc from docstrings.
I'm the original author of this script.
UPDATE
This script is now part of Sphinx 1.1 as apidoc.
We use
.. automodule:: module
:members: