[Zope] Can't pickle objects in acquisition wrappers

[Keith Alperin]

This is almost definitely my problem as my products keep direct  
references to other persistent objects all of the time.

Out of curiosity, has this always been a poor practice or is it  
something that changed recently?

Many thanks Gabriel (and others).

Keith

On Dec 18, 2005, at 11:00 PM, Gabriel Genellina wrote:

> At Monday 19/12/2005 00:53, Keith Alperin wrote:
>
>> I'm returning to Zope after about a year away and am working on a
>> project that i have pieced together over about 4 years.  I recently
>> deployed this project (a family history web site) under a zope 2.7.x
>> install (it used to run on a 2.4.x install) and now I can't seem to
>> update any of my objects.  when i try to save them, I get a
>> TypeError: Can't pickle objects in acquisition wrappers.  I was never
>
> You should not store a persistent attribute that is an acquisition  
> wrapper itself. (What is that... see the corresponing chapter in  
> the Zope Developers Guide).
> You are developing your own Product, I presume? Perhaps, you are  
> keeping a direct reference to another persistent object? You should  
> store its id instead, o use a container like ObjectManager.
> Without more information that's all I can guess...
>
>
> Gabriel Genellina
> Softlab SRL