Re: probable bug in @on_trait_change with delegated lists

Danny Shevitz wrote:
>> I'm not sure why you think that is the wrong handler, especially when 
>> the 'new' value is a TraitListObject? If 'new' were a TraitListEvent 
>> object, then your conjecture would have some merit. See my previous post 
>> about setting a default Property value...
>>
>> Dave Morrill
>>
>>     
>
> my bad, new *is* a TraitListEvent, not a TraitListObject as written, so I
> believe my comment has merit.
>  
> As for sub_contexts, it is defined via
>
> class ExtendableGate(HasStrictTraits):
>   sub_contexts = List
>
> class ExtendableContext(HasStrictTraits):
>   logic_element= Instance('ExtendableGate')
>   sub_contexts = Delegate('logic_element', modify=True)
>
>   

Hmm...might bear some looking into. I'm still not clear what is 
happening in your app when the notification error occurs. Which trait is 
being modified, and how? I probably won't have time to look into it 
today, but will try and do so tomorrow...

Dave Morrill