How do I implement a binary search tree in Python?

How do I implement a binary search tree in Python?

To implement a binary search tree (BST) in Python, you can start by defining a class for the tree nodes.

What should the node class look like?

The node class should have attributes for the value, left child, and right child. Here's a simple example:

class TreeNode:
    def __init__(self, value):
        self.value = value
        self.left = None
        self.right = None

How do I insert a new value into the BST?

You can create an insert method that compares the new value with the current node's value and decides whether to go left or right.

Can you show me the insert method?

Sure! Here's a basic implementation of the insert method:

def insert(self, value):
    if value < self.value:
        if self.left is None:
            self.left = TreeNode(value)
        else:
            self.left.insert(value)
    else:
        if self.right is None:
            self.right = TreeNode(value)
        else:
            self.right.insert(value)