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

[Paul Rubin]

"vinjvinj" <vinjvinj at gmail.com> writes:
> No. I was hoping to leverage the work done for restricted pythonscript
> by zope at:
> 
> http://www.zope.org/Control_Panel/Products/PythonScripts/Help/PythonScript.py

How does Pythonscript deal with
   xxx = 'x' * 1000000000
as a memory DOS attack?