[z3-five] Does Five support Local Utilities?

[Chris Withers]

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

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...

cheers,

Chris

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