Referencing a container object's attributes

[Tim Churches]

Is there any way for a method of a class instance which is embedded in a
container class instance to look up attributes of that container class
instance (i.e. the one which contains it)? At the moment I am putting
the name of the container instance in an attribute of the containee (at
the time when the containee is instantiated). Is there a neater way? All
the Python texts cover referencing an object's superclass(es), but not
its container object(s).

Tim C