According to $(jython -h), $JYTHONPATH is supposed to add directories to sys.path. However, this doesn't seem to work for me. Instead, what I have to do is add $JYTHONPATH as the JAVA Extensions list (-Djava.ext.dirs=$JYTHONPATH) in $JAVA_STACK .

This allows me to maintain a Jython Library (Lib) outside of the Jython Installation directory. (I used to customize $JYTHON_HOME/registry.)

Is anyone else seeing this ?