doesNotUnderstand ?

[Skip Montanaro]

    Gerardo> Is there a way to intercept the activation of messages which
    Gerardo> are not implemented?

Well, you will get an AttributeError exception when trying to access a
missing method or data attribute.  If you want a catch-all (say, for a
proxy), add  __getattr__ method to your class.  Check out the "Customizing
attribute access" section of the Language Reference Manual for details:

    http://www.python.org/doc/current/ref/attribute-access.html

-- 
Skip Montanaro (skip at pobox.com - http://www.mojam.com/)