This project was registered on SourceForge.net on Dec 30, 2009.
nJES is a complete CPython rewrite of JES (Jython Environment for Students), originally written by Mark Guzdial and Barbara Ericson. The primary objective of the rewrite is to enhance performance while maintaining full forward compatibility with JES.
The nJES package is not complete at this time and only incorporates a small subset of JES-proper's features. It will undergo non-API breaking changes soon as it transitions from using Pygame to Pyglet for multimedia operations. The IDE is very limited at the moment and similarly doesn't include many features present in JES-proper.
However, if that still doesn't dissaude you, by all means, feel free to grab a tarball of the latest code in the SVN trunk using the link to the right.
Source code for this project is available through the Subversion SCM repository used by the project, and can be browsed here: SVN.
If you are a developer interested in this project, please consider reaching out to the project admin as shown on the project summary page to offer your assistance..