Creating a binary tree through a loop

I want to create a binary tree by iterating through a loop. I know how to write a very basic binary tree.

class Tree(object):
    def __init__(self):
        self.left = None
        self.right = None
        self.data = None


root = Tree()
root.data = 75
root.left = Tree()
root.left.data = 95
root.right = Tree()
root.right.data = 64

root.left.left = Tree()
root.left.left.data = 32
root.left.right = Tree()
root.left.right.data = 93
root.left.left = Tree()
root.right.left.data = 32
root.left.right = Tree()
root.right.right.data = 93

print(root.data)

This is tedious handtyping it, and if I were to have a list of numbers:

list = [1,2,3,4,5,6,7]

and put it through a loop to create a binary tree in this order so:

   1 
 2   3
4 5 6 7

How would I write that? and because I'm using this to calculate the sum of all the paths, how do you navigate/iterate through a binary tree: