LinkedList Task Code

LinkedList.py

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

    def setData(self, data = None):
        self.data = data

    def setNext(self, next = None):
        self.next = next

    def getData(self):
        return self.data

    def getNext(self):
        return self.next


class LinkedList:
    def __init__(self):
        self.head = None

    def add(self, item):
        newNode = Node(item)
        newNode.setNext(self.head)
        self.head = newNode

    def display(self):
        elements = []
        currentNode = self.head

        while currentNode != None:
            elements.append(currentNode.getData())
            currentNode = currentNode.getNext()

        print(elements)

    def length(self):
        count = 0
        currentNode = self.head
        while currentNode != None:
            count += 1
            currentNode = currentNode.getNext()
        return count


myList = LinkedList()
myList.add(50)
myList.add(60)
myList.add(70)
myList.display()
print(myList.length())