[Zope] stack error with Python 2.1.2

[Frank Tegtmeyer]

Chris Withers <chrisw@nipltd.com> writes:

> Nah, just the restricted code in in Zope uses a different compiler than the one
> in Python leading to badness. 

How does this lead to a corrupted stack then?
Does the compiler for restricted code generate something that is then
used by the Python interpreter?
Are there no hooks in Python that allow eliminating an additional
compiler in Zope?

I'm interested to know more about the restricted code execution. Is
there some material that someone without deep Python knowledge can
understand?

Regards, Frank