LinkedList.py

# A single node of a singly linked list
#LinkedList

class Node:
 # constructor
 def __init__(self, data = None, next=None): 
 self.data = data
 self.next = next

# A Linked List class with a single head node
class LinkedList:
 def __init__(self): 
 self.head = None
 
 # insertion method for the linked list
 def insert(self, data):
 newNode = Node(data)
 if(self.head):
 current = self.head
 while(current.next):
 current = current.next
 current.next = newNode
 else:
 self.head = newNode
 
 # print method for the linked list
 def printLL(self):
 current = self.head
 while(current):
 print(current.data)
 current = current.next

# Singly Linked List with insertion and print methods
LL = LinkedList()
LL.insert(3)
LL.insert(4)
LL.insert(5)
LL.printLL()