AVL Balancing

[scbauer at gmail.com]

Im working on an AVL tree that consists of balancing the tree everytime
you add an object. Im not quite grasping the concept on how to do this
with python. I have seen a few topics on the web about this, and i
clearly understand how when the balance of an AVL tree get to 2 or -2
you have to do a R, L, LR, or a RL rotation. Could anyone possibly help
me/point me in the right direction as far as checking the balance and
actually balancing the tree? Thanks in advance