Re: Survey: most obscure errors

Patrick Gerken <[email protected]> Thu, 16 Sep 2010 13:09:43 +0200
Newsgroups	gmane.comp.web.zope.devel
Message-ID	<[email protected]>
Hi

It doesn't happen to me any longer, cause I learned my lesson,
but in the beginning I was always confused about the error message
when an exception happened in the __init__ method of a view.

The Exception gets caught, and interpreted as if the object object/view
does not exist. I then always checked if I made a mistake in my
zcml declaration or did something wrong with names.
It never occured to me that the url was correct, but the __init__
method threw errors.

Best regards,

        Patrick

On Tue, Sep 14, 2010 at 12:00, Marius Gedminas <[email protected]> wrote:
> What are the most obscure error conditions you've encountered while
> developing Zopeish[1] applications?
>
>  [1] ZTK, Grok, Bluebream, the old Zope 3.x KGSes all qualify.
>
> I'm talking about situations where the error message/traceback are
> disconnected from the actual cause.  For example, forgetting to add a
> security declaration in ZCML can cause TraversalError (because
> ForbiddenAttribute is a subclass of AttributeError), which leads the
> developer off to a wild goose chase looking for why the attribute is
> missing (was it misspelled? did it come from an old database?) the first
> few times this kind of error happens.
>
> One of the goals we came up with in the Zope Summit in Halle was to
> identify the most annoying of these kinds of error messages and fix
> them.  I need your help for the identifying part!
>
> Marius Gedminas
> --
> http://pov.lt/ -- Zope 3/BlueBream consulting and development
>
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