Data Structures, Algorithms, Data Engineering, Data Science, Doubly Linked List.
self.tail = new_node else: new_node.prev = current.prev new_node.next = current if current.prev: current.prev.next = new_node current.prev = new_node Execution: dllist.insert(4) dllist.insert(5, 2) dllist.display() # Output: 1 -> 2 -> 5 -> 3 -> 4 -> None 4. Deletion: Deletion can be performed at