Has anyone seen a Python spreadsheet with Python as the core macro language?

I'm aware of IronPython and this is about as close as I have seen to what I am looking for except that it runs on the wrong OS and can't use the standard python libraries. :)

I've run into a few other options that look promising, just not.quite.there such as GNU Numeric, OpenOffice, and Picalo.  All I'm looking for is a basic grid that i can use to dynamically test functions and to print results for evaluation.

Perhaps what is needed is a new project using a wxPython grid?

- Luis