[z3-five] Does Five support Local Utilities?

[Philipp von Weitershausen]

Chris Withers wrote:
> Philipp von Weitershausen wrote:
>> There is no "local to a single object".

Actually, I lied. The Component Architecture has the semantics of a 
componetn that's specifically looked up for one or more objects: adapter.

>> The zope.component lookup functions will query the currently active
>> site manager, which is typically set during traversal. If that site
>> manager has the utility registered you want to lookup, it'll be
>> found. If not, lookup will cascade to site managers higher up the
>> hierarchy. It's acquisition, Zope 3 style.
> 
> Oh, this sucks :-(

Whatever.

> I can't get the semantics I'm after unless I do nasty things:
> 
> (pseudo-ish code)
> 
> from copy import deepcopy
> from twiddler.interfaces import IInput
> from twiddler.zope2.interfaces import IConfigurableComponent
> from zope.component import getUtility
> 
> def setInput(self,name):
>   input = getUtility(IInput,name)
>   if IConfigurableComponent.providedBy(input):
>       input = deepcopy(input)
>   self.input = input
> 
> ...in order to be able to configure the input for that particular 
> Twiddler instance, without that configuration affection the use of the 
> input in all instances that use it.
> 
> I don't know how evil the above it, would be interested on people's 
> views...

I don't understand the pseudo code above. What's your goal?