title: Is there a module for balanced binary tree in Python's standard library?
body: <p>Is there a module for an <a href="https://en.wikipedia.org/wiki/AVL_tree" rel="noreferrer">AVL tree</a> or a <a href="https://en.wikipedia.org/wiki/Red%E2%80%93black_tree" rel="noreferrer">red–black tree</a> or some other type of a balanced binary tree in the standard library of Python?</p>