[Zope] How to get nice traceback like from old versions?

[Robert (Jamie) Munro]

Dieter Maurer wrote:
> Jaroslav Lukesh wrote at 2008-2-6 00:08 +0100:
>> Once more, correction of misformatted text for better readability.
>> ...
>>   - __traceback_info__: REQUEST
>>  Module <string>, line 1, in <expression>
>> NameError: name 'kalendar_titulni_pouze_akce_str' is not defined
>>
>> Line 313 where is the error looks:
>> <dtml-call "REQUEST.set('akce', kalendar_titulni_pouze_akce_str)">
>>
>> Is somewhere some extra product or patch to show partial code where is 
>> error?
> 
> You are right: DTML is only rarely used nowadays and its support
> deteriorates.
> 
> I do not know of a product or patch to improve on this
> (also I modified our local Zope to at least report which
> DTMLObject caused a problem).
> 
> You can improve it by adding "__traceback_info__"
> or "__traceback_supplement__" definitions at strategic places
> in the DMTL implementation.

If anyone has done this, can I have a copy of your patch - I'm debugging
on an old DTML product, and it is impossible to debug without line
numbers of exceptions.

Otherwise I might have to downgrade zope to 2.5 - thanks for that tip
from Jaroslav Lukesh - I had no idea that it used to be better.

Thanks,

Robert (Jamie) Munro