Message6693

Have you tried different values for the python.console property in the registry file? Here are the options in my registry file

# Jython ships with a JLine console (http://jline.sourceforge.net/)
# out of the box. Setting this to the name of a different console class,
# new console features can be enabled. Readline support is such an
# example:
#python.console=org.python.util.ReadlineConsole
#python.console.readlinelib=JavaReadline
# To activate the legacy Jython console:
#python.console=org.python.util.InteractiveConsole

I recommend trying the "legacy Jython console".