Ok in zope this is not a language construct but just the way properties 
are looked up. I imagine that this is like in SmallWiki, if a property 
is not locally defined we look up in its container.

Stef
On Mercredi, oct 29, 2003, at 19:34 Europe/Zurich, John Maxwell wrote:

> ducasse wrote:
>
>> could you tell us a word or more ;) on acquisition?
>
> Thanks Eric for the detail...
>
> The real short answer is: out of the box, Zope gives you two kinds of 
> inheritance. The first is regular class inheritance; the second is 
> acquisition, which, in the webserver metaphor means that if I have an 
> object (an image, for instance) available in the namespace at the top 
> of the hierarchy, I can refer to it "locally" six folders down. This 
> is incredibly handy for web work, because, for instance, you can build 
> a single navigation system at the top level and simply refer to it all 
> the way down the tree. Zope's built-in security/access model lends 
> itself really nicely to this, too.
>
>  - John Maxwell
>    jmax at sfu.ca
>
>