[Zope-dev] How to aquire from Context?

[Dieter Maurer]

Matt Hamilton writes:
 > ....
 > According to the ZDG (Great read,
 > thanks guys!):
 > 
 > -- snip --
 > 
 > (Acquisition works by: ) Containment Before Context
 > ....
 > 
 > Now that makes perfect sense to me and I can see why it happens as
 > such.  However what if I want (Context Before Containment).
I fear, there is no simple solution.

  You can follow the context chain with 'aq_parent'.
  Thus, you can implement your own lookup. However,
  you will need an external method 'hasItself' to
  check, when you found the binding you are looking for.

    def hasItself(object,attr):
      object= getattr(object,'aq_base',object)
      return hasattr(object,attr)


Dieter