Re: Plone 4.3.4 RuntimeError: maximum recursion depth exceeded

On 2014-11-25 15:45, Asko Soukka wrote:
> Hi Héctor,
>
> tests are working and failing as they should.
>
> Dexterity broken behavior was fixed, but unfortunately there seem to be
> code relying on the broken behavior:
>
> E.g. all "ContextAwareDefaultFactories" here are trying to read the
> default value from the context itself (which does not make sense,
> because factory is called exactly because the value is missing), causing
> recursion:
>
> https://github.com/plonegovbr/brasil.gov.agenda/blob/master/src/brasil/gov/agenda/content/agendadiaria.py#L51
>
> Probably, p.dexterity could be fixed to detect that recursion and return
> None. But is there a simple way in Python to detect possible recursion?
> Catching recursion exceptions within p.dexterity getattr?

I think we could detect it and raise a more verbose AttributeError. But 
I fear too many checks on this level are probably a performance killer.

I usally prefer to add some extra verbose information to the traceback 
using __traceback_supplement__ and let it upon the programmer to read it 
right.

Jens

> Regards,
> Asko
>
>
> Héctor Velarde wrote:
>> thanks, Asko, but... how do we solve this issue then? there's nothing
>> weird with those tests, just plain vanilla content creation using
>> invokeFactory:
>>
>>      self.agenda.invokeFactory('AgendaDiaria', '2013-02-05')
>>
>> I just changed them to use plone.api.content.create and the problem
>> persist:
>>
>>      api.content.create(self.agenda, 'AgendaDiaria', '2013-02-05')
>>
>> Héctor Velarde
>>
>>
>
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