[Zope-dev] aq_inner: don't call it!

[Jim Fulton]

Chris Withers wrote:
> 
> After more playing I've discovered that calling the resutl of aq_inner()
> appears to be a very bad idea ;-)
> 
> The line:
>         print self.aq_inner()
> 
> in the __call__ method of a python product caused the python process to
> dump an 'unknown software exception'.
> 
> Should that be so?

No. Sound's like a bug. Would you mind submitting a collector entry?

> Also, I thought aq_inner gave the contaiment context (presumably as a
> list?) but it just returns a single object.

It returns the innermost wrapped objects. IOW, it stips
off all levels of wrapping except one.


> So, how can I get the containment context of an object as a list?

See:

http://www.zope.org/Members/michel/Projects/Interfaces/AcquisitionModuleInterface

In particular:

  Acquisition.aq_chain(ob,1)

More acquisition pointers can be found at:

  http://www.zope.org/Members/michel/Projects/Interfaces/Acquisition

Jim

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