Untitled

class Node:

    def __init__(self, data): 
        self.data = data
        self.next = None 

class LinkedList:

    def __init__(self):
        self.head = None

    def append(self, data):
        if self.head is None: self.head = Node(data)
            
        else:
            new_node = Node(data)
            cur = self.head

            while cur.next is not None:
                cur = cur.next
            cur.next = new_node

node1 = Node(42)
node2 = Node(5)
node1.next = node2
node2.next = node1
list1 = LinkedList()
list1.append(node1)
list1.append(node2)


current = list1.head
while current is not None:
    print(current.data)
    current = current.next