IronPython 1.0, the Python release for the .NET framework has its first release. I haven't tried it yet but in the past I have used the original version of Python as build by Guido van Rossum and though it was a great and very productive programming language.
Take a look at Jon Udell's screen cast for an overview about Python at http://weblog.infoworld.com/udell/screenroom/ironpython_flv.html.
Download IronPython at http://www.codeplex.com/Wiki/View.aspx?ProjectName=IronPython
For the original Python: http://www.python.org or http://en.wikipedia.org/wiki/Python_programming_language.
Maurice de Beijer