binary search tree implementation let us begin our implementation of bst we will want the tree to hold reference to its own root nodeclass treedef __init__(self)self root_node none that' all that is needed to maintain the state of tree let' examine the main operations on the tree in the next section binary search tree operations there are essentially two operations that are needful for having usable bst these are the insert and remove operations these operations must occur with the one rule that they must maintain the principle that gives the bst its structure before we tackle the insertion and removal of nodeslet' discuss some equally important operations that will help us better understand the insert and remove operations finding the minimum and maximum nodes the structure of the bst makes looking for the node with the maximum and minimum values very easy to find the node with smallest valuewe start our traversal from the root of the tree and visit the left node each time we reach sub-tree we do the opposite to find the node with the biggest value in the tree