Ian Kelly wrote:
Is it better to introduce an extra base class?
That's one possibility. An advantage would be that it would be easier to add methods in the future that apply to UsualTreeNodes but not FinalTreeNodes. Another possibility would be to just rename the classes. Instead of FinalTreeNode and UsualTreeNode, call them something like TreeNode and NonFinalTreeNode, with NonFinalTreeNode inheriting from TreeNode. -- Greg -- https://mail.python.org/mailman/listinfo/python-list
