How to delete yourself????

[Kay Schluehr]

christian.siegl at gmail.com wrote:
> Hello,
>
>
> I got a problem deleting objects, which are placed in a hirarchy....
>
> Asume we have the following code:
> ########################################################
> class parent:
>
>     MyChilds = [] # this list is filled with childs....
>
>     def AddChild(self, child):
>         # add childs here, however this is done, it's not the point...
>         child.MyParent = self
>
>     def RemoveChild(self, child):
>         # delete child from the list.... the way this is done is not
> our
>         # problem here
>
>
> class child:
>
>     MyParent = 0
>
>     def deleteMe(self):
>         MyParent.RemoveChild(self)
> ##############################################################

Please help me understand the child class. It does not make much sense
to me at all.

Why is it not sufficient to call child.parent.remove(child) if the
caller holds a child object but not the parent? Otherwise it should be
sufficient to call parent.remove(child). 

Kay