[Zope] Zope 2.12 and ZPT

[Peter Bengtsson]

On 1 May 2010 14:40, Andreas Jung <lists at zopyx.com> wrote:
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> Peter Bengtsson wrote:
>> I'm trying to get a product running in Zope 2.12 which I installed in
>> a virtualenv with easy_install. It starts fine and all but when I try
>> to render a piece of ZPT I get this weird error:
>>
>>
>> Traceback (innermost last):
>>   Module ZPublisher.Publish, line 127, in publish
>>   Module ZPublisher.mapply, line 77, in mapply
>>   Module ZPublisher.Publish, line 47, in call_object
>>   Module Products.IssueTrackerProduct.IssueTracker, line 12629, in AddIssue
>>   Module Shared.DC.Scripts.Bindings, line 324, in __call__
>>   Module Shared.DC.Scripts.Bindings, line 361, in _bindAndExec
>>   Module Products.PageTemplates.PageTemplateFile, line 130, in _exec
>>   Module Products.PageTemplates.PageTemplate, line 80, in pt_render
>>   Module zope.pagetemplate.pagetemplate, line 115, in pt_render
>>   Module zope.tal.talinterpreter, line 271, in __call__
>>   Module zope.tal.talinterpreter, line 343, in interpret
>>   Module zope.tal.talinterpreter, line 888, in do_useMacro
>>   Module zope.tal.talinterpreter, line 343, in interpret
>>   Module zope.tal.talinterpreter, line 533, in do_optTag_tal
>>   Module zope.tal.talinterpreter, line 518, in do_optTag
>>   Module zope.tal.talinterpreter, line 513, in no_tag
>>   Module zope.tal.talinterpreter, line 343, in interpret
>>   Module zope.tal.talinterpreter, line 742, in do_insertStructure_tal
>>   Module Products.PageTemplates.Expressions, line 220, in evaluateStructure
>>   Module zope.tales.tales, line 696, in evaluate
>>   Module Products.PageTemplates.ZRPythonExpr, line 49, in __call__
>>    - __traceback_info__: here.getRoot().title_or_id().replace(' ',' ')
>>   Module PythonExpr, line 1, in <expression>
>> UnicodeDecodeError: 'ascii' codec can't decode byte 0xc2 in position
>> 0: ordinal not in range(128)
>>
>>
>> After a lot of trial-and-error I managed to figure out that the
>> culprit was this piece of ZPT code:
>> tal:content="structure python:here.getRoot().title_or_id().replace('
>> ','&nbsp;')"
>> Stupid and easy to fix; maybe but what if there are other problems like this?
>>
>>
> Likely related to the new ZPT engine since Zope 2.10.
>
> Either you deal with this using the unicode conflict resolver of ZPT
> or ensure that you don't mix up different encodings since ZPT now uses
> unicode internally.
>
"the unicode conflict resolver"?
My app does not have any non-ascii characters until user input is
added which it's programmed to work with.
The problem was that '&nbsp;' inside the TALES expression was converted to 0xa0


> - -aj
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-- 
Peter Bengtsson,
work www.fry-it.com
home www.peterbe.com
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