Need the bin directory under the Jython install directory on the path.

.travis.yml

@@ -20,7 +20,7 @@ env:
 before_script: if [ "$JYTHON" == "true" ]; then export PYTHON_EXE=jython; jython -c "print ''"; else export PYTHON_EXE=python; fi
 before_install:
   - export JYTHON_URL='http://search.maven.org/remotecontent?filepath=org/python/jython-installer/2.7-rc2/jython-installer-2.7-rc2.jar'
-  - if [ "$JYTHON" == "true" ]; then wget $JYTHON_URL -O jython_installer.jar; java -jar jython_installer.jar -s -d $HOME/jython; export PATH=$HOME/jython:$PATH; fi
+  - if [ "$JYTHON" == "true" ]; then wget $JYTHON_URL -O jython_installer.jar; java -jar jython_installer.jar -s -d $HOME/jython; export PATH=$HOME/jython/bin:$PATH; fi
 matrix:
   exclude:
     - python: 2.6