How do I implement a binary tree in Python?

How do I implement a binary tree in Python?

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

What should the node class look like?

The node class can 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 add nodes to the binary tree?

You can create a method to insert nodes. For example, you can use a recursive approach to find the correct position for the new node.

Can you show me the insert method?

Sure! Here's a simple insert method:

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