Any recommendations on Python based tree data structures that I can study? I'm working on an application that will model a basic outline structure (simple tree) and am looking for ideas on Pythonic implementation techniques. By outline I mean a traditional hierarchical document outline (section, chapter, sub-chapter, ...). I will be building this structure as I parse my customer's internally designed (proprietary) publishing markup language. My initial thought is to implement a generic node container class with attributes for parent, next, previous, and child 'pointers'. The node objects will be stored in a dictionary where node 'pointers' correspond to incrementally assigned numeric keys. Thanks! Malcolm
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