Using python for writing models: How to run models in restricted python mode?

[vinjvinj]

Unfortunately this in not an options since all the processes share
objects in memory which are about 1gig for each node. Having a copy of
this in each user process is just not an options. I think I'm going to
use RestrictedPython from zope3 svn which should take care of 70-80 %
of the problem.