This is an implementation of the TAL and TALES specifications see http://docs.zope.org/zope2/zope2book/AppendixC.html for Python 2.7 and 3.2+ (possibly working on other versions too)
Forked from http://www.owlfish.com/software/simpleTAL/
SimpleTAL and SimpleTALSix use a BSD-3-Clause style license so you are free to do many things with it.
All unit tests can be run via setuptools with "setup.py test".