[ZPT] going crazy with sequence sort

[Peter Bengtsson]

(zope 2.4.0)

How do I do http://www.zopelabs.com/cookbook/996746739 
<dtml-in "_.sequence.sort(objects,(('bobobase_modification_time'),),)">
or
from DocumentTemplate import sequence
for a in sequence.sort(objects,(('bobobase_modification_time'),),):


...in ZPT?

Cheers, Peter