Oracle GlassFish Server 3.0.1 Scripting Framework Guide
ProcedureTo Install Jython from Update Tool  The GlassFish
Server Update Tool provides a Jython package. This package
installs a Jython instance that enables creation of Jython
applications for GlassFish Server. If you installed Jython from
Update Tool, there is no need for further configuration of the
jython.home property.    1. Start Update Tool with the following
command:    2. Choose the following option from Available Add-
ons and click Install:      Jython Runtime IPS package for
GlassFish v3      Update center automatically completes the
installation of the container and configures it for use with
GlassFish Server.    3. Set the following environmental
variables:      Set the JYTHON_HOME variable to the Jython
install location:      export JYTHON_HOME=as-
install/glassfish/jython      Add the JYTHON_HOME/bin directory
to the path:      export PATH=$JYTHON_HOME/bin:$PATH      You
should now be able to invoke Jython from command line as
follows: