Jython is an implementation of the Python programming language on top of the Java Virtual Machine. Since Jython runs on Java you could do things like stuff Python into applets or server side servlets. Think of it as ActionScript but more programmer oriented and without the all inclusive development environment of Macromedia Flash. Of course, applets haven't taken over the world but for small installations Jython based applets are eminently useful.
Unfortunately, Jython's language features had diverged from the ur-Python. Recently there's been a big effort to catch up, and Bill de h