Samuele Pedroni was one of the main Jython developers. He holds a CS flavored diploma in mathematics from the ETH Zurich (Swiss institute of technology in Zurich). He came to Jython with the interest in improving it with respect to Java importing and reloading. He has developed several important patches related to java
integration, classloaders, and the reworking of java/python importing rules and design. He then started the implementation of new-style
classes for Jython which made the current (post 2.1) development possible. He still cares about semantics related bugs in Jython. He is
a core contributor to PyPy these days.