IronPython

[Julio Canto]

Bueno, ya parece que incluso figura en downloads de microsoft.com :)
http://www.microsoft.com/downloads/details.aspx?FamilyID=ca016ff4-dae8-4007-8018-4f201003c9dc&DisplayLang=en

IronPython is a codename of the early pre-alpha release of the new 
Implementation Running on .NET of Python programming language.
It supports an interactive interpreter with fully dynamic compilation. 
It is well integrated with the rest of the framework and makes all .NET 
libraries easily available to Python programmers.

Un saludo,
    JC