[Zope] access to other zope objects in __setstate__

hello ! Almost everything is in the subject: i would like to access to a portal tool in the __setstate__ method for an object, but it seems that when this method is called 'self' isn't the acquisition wrapper, so I get an AttributeError. What's the good place to access to other zope objects when an instance is loaded ? TIA -- Sylvain Thénault LOGILAB, Paris (France). http://www.logilab.com http://www.logilab.fr http://www.logilab.org