Jython programming language

Jython is a version of Python that's written in Java and that runs in the Java environment. Jython programs can seamlessly import and use any Java class. Except for some standard modules, Jython programs use Java classes instead of Python modules. For example, a user interface in Jython would be written with Swing or AWT, rather than with Tkinter.

For more on Jython, go to http://www.jython.org/.