[Tutor] Self-referential objects and garbage collection

[VanL]

Hello,

How does Python deal with self-referential objects?  For example:

class DLinkedList:

    def __init__(self, name, objprev=None, objnext=None):
        self.__label = name
        if objprev: self.__prevlink = objprev
        if objnext: self.__nextlink = objnext
        else:
            self.__prevlink = self
            self.__nextlink = self

[methods snipped]

I had understood that Python used a reference-counting scheme.  Is
this true, and is there a __destroy__ method to call for circular
data structures?

Thanks,

Van