Python is a an interpreted, interactive, object-oriented computer programming language that is used both for teaching computer programming and for a wide range of applications in business, science and academia.
More information about Python, including downloads of the latest or previous versions, is available from the Python.org home page.
There is also the PythonInfo wiki. See the FrontPage for more information.
If you want to use Python the BeginnersGuide is a good place to start.