I've fixed to issues in my tiran-zpt-pydefer branch (svn):
* DeferWrappers weren't working inside a python expression because PythonExpr didn't know about them
* DeferWrapper didn't cache the result of the expression like ordinary vars do.
I would like to merge my branch into 2.7 and 2.8 if I get an ok.
Zope-Dev maillist - Zope-Dev@zope.org
** No cross posts or HTML encoding! **
(Related lists - http://mail.zope.org/mailman/listinfo/zope-announce