João Valverde wrote:
Aahz wrote:
In article <mailman.2139.1245994218.8015.python-l...@python.org>,
Tom Reed  <tomree...@gmail.com> wrote:
Why no trees in the standard library, if not as a built in? I searched the archive but couldn't find a relevant discussion. Seems like a glaring omission considering the batteries included philosophy, particularly balanced binary search trees. No interest, no good implementations, something other reason? Seems like a good fit for the collections module. Can anyone shed some light?

What do you want such a tree for?  Why are dicts and the bisect module
inadequate? Note that there are plenty of different tree implementations
available from either PyPI or the Cookbook.
A hash table is very different to a BST. They are both useful. The bisect module I'm not familiar with, I'll have to look into that, thanks.

I have found pyavl on the web, it does the job ok, but there no implementations for python3 that I know of.

Simple example usage case: Insert string into data structure in sorted order if it doesn't exist, else retrieve it.

Crap, sorry about the mixed identities, I'm not using my own machine. The original post is mine also.
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