Linked Lists- Reverse the List

inserting an Image

Code:

    def reverse_iterative(self):


        previous = None 
        current_node = self.head

        while current_node:

            next_node = current_node.next
            current_node.next = previous


            self.print_helper(previous, "Previous")
            self.print_helper(current_node, "Current Node")
            self.print_helper(next_node, "Next Node")
            print("\n")

            previous = current_node

            current_node = next_node

        self.head = previous