[Zope-dev] TAL i18n breakage in 2.7

[seb bacon]

Hi,

Zope 2.7 introduced a change in its translation interface.  Previously a
translation service could return None, but now returning None causes an
assertion error.

http://cvs.zope.org/Zope/lib/python/TAL/TALInterpreter.py.diff?r1=1.77&r2=1.78

This will break applications (e.g. Plone1) which use Nuxeo's
TranslationService, which does return None.  Is there a good reason for
introducing this compatibility breakage?

seb