class Node: def __init__(self, value=None): self.value = value self.next = None class LinkedList: def __init__(self): self.head = None def append(self, value): new_node = Node(value) if self.head is None: self.head = new_node return cur_node = self.head while cur_node.next is not None: cur_node = cur_node.next cur_node.next = new_nodeThis code creates a linked list by defining the `Node` class and `LinkedList` class. In the `append` method, a new node is created and added to the end of the list. Package Library: In Python, there are several packages that provide implementations of linked lists such as `collections` and `LinkedList`. However, the examples above do not use any package library for linked list implementation.