[Zope3-Users] object has no attribute '_SampleContainer__data'

[Tom Dossis]

Leticia Larrosa wrote:
> When a try to see the view of list of "Service" of one of the "ServiceList"
> I get the following error:
> 
> """
> 'Service' object has no attribute '_SampleContainer__data'
> """
> 
> I'm newcomer in zope 3 and any idea will be appreciated.
> Thanks in advance.
> 
> Leticia Larrosa

In addition to the previous reply; I experienced the above problem when..

I implementend a simple subclass of SampleContainer, then changed to 
subclass BTreeContainer, but forget to delete existing instances created 
in Zope.  A tell tale sign is you can no longer delete the broken 
instance(s)

-Tom