Modjy has been distributed with jython for several months now, in the form of a third party library, as a zip file; I used to maintain the modjy source code in a private subversion repo. But now all of the java and jython source code for modjy has been checked into the jython source base. I did the integration work on a dedicated modjy branch. The jython BDFL, Frank Wierzbicki, then kindly exercised his considerable subversion fu to integrate that branch with the jython trunk, from whence the first jython 2.5 release candidate will be cut.
Jython 2.5 is a fantastic achievement, a tribute to Frank and all of the jython developers!