oo problem

[Nils Oliver Kröger]

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Hi,

many class libraries use a parent attribute for this purpose:

class Rectangle (object):
	__init__(self, parent):
		#Use the parent as "private": nobody except your own 				#class should
mess around with it ...
		self._parent = parent

The parent of course needs to be an existing Paper instance.

You might check whether the given value for parent is indeed a Paper
instance in your Rectangle's __init__, otherwise you might get strange
AttributeError exceptions when using the parent later.

Hope that helps!

Nils


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