[Zope-dev] TAL i18n breakage in 2.7

[seb bacon]

On Thu, Feb 19, 2004 at 09:10:30AM -0500, Stephan Richter wrote:
> On Thursday 19 February 2004 08:08, seb bacon wrote:
> > 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
> 
> That is strange. The Zope 3 translation service can also still return None and 
> we use the same TAL code. I cannot see which code change would not handle the 
> None.

The new implementation would appear to expect the service to return the
default value passed in, instead of None.

>From the diff linked to above:

r1.77 has:

  xlated_msgid = self.translate(msgid, i18ndict, obj)
     # If there is no translation available, use evaluated content.
     if xlated_msgid is None:
        # do some stuff

r1.78 has:

  xlated_msgid = self.translate(msgid, default, i18ndict, obj)
  assert xlated_msgid is not None, self.position

seb