See INSTALL file for installation and COPYING file for license
How to start hacking
Fork the github repo at https://github.com/manns/pyspread.git
In order to start pyspread without installation run
inside the top directory.
Sources can be found in the sub-folder
Commit your changes, push them into your fork and send a pull request.
This page gives an overview how to do this: https://help.github.com/articles/fork-a-repo
You can find more more details about code organization at http://manns.github.com/pyspread/contribute.html