from __future__ import absolute_import
from __future__ import division
from __future__ import print_function


class BinaryTree(oject):
    """Binary Tree using class."""
    def __init__(self, root):
        self.key = root
        self.left_tree = None
        self.right_tree = None

    pass


def main():
    pass


if __name__ == '__main__':
    main()

@@ -280,16 +280,619 @@
 = None%0A%0A
+    def insert_left(self, new_node):%0A        if self.left_tree is None:%0A            self.left_tree = BinaryTree(new_node)%0A        else:%0A            t = BinaryTree(new_node)%0A            t.left = self.left_tree%0A            self.left_tree = t%0A%0A    def insert_right(self, new_node):%0A        if self.right_tree is None:%0A            self.right_tree = BinaryTree(new_node)%0A        else:%0A            t = BinaryTree(new_node)%0A            t.right_tree = self.right_tree%0A            self.right_tree = t%0A%0A    def get_root_value(self):%0A        return self.key%0A%0A    def set_root_value(self):%0A        # TODO: here%0A    
     pass

Implement binary tree at Narity Airportx