delete node pointer python

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

    # method adds elements to the left of the Linked List
    def addToStart(self, data):
        # create a temporary node
        tempNode = Node(data)
        tempNode.setLink(self.head)
        self.head = tempNode
        del tempNode

    # method adds elements to the right of the Linked List
    def addToEnd(self, data):
        start = self.head
        tempNode = Node(data)
        while start.getNextNode():
            start = start.getNextNode()
        start.setLink(tempNode)
        del tempNode
        return True

    # method displays Linked List
    def display(self):
        start = self.head
        if start is None:
            print("Empty List!!!")
            return False

        while start:
            print(str(start.getData()), end=" ")
            start = start.link
            if start:
                print("-->", end=" ")
        print()

    # deleting node with only that node pointer
    def deleteNode(self, nodePtr):
        if nodePtr is None:
            return
        else:
            # make a pointer to next node
            nextNode = nodePtr.getNextNode()

        # copy deteils of next node to current node
        nodePtr.updateData(nextNode.getData())
        nodePtr.setLink(nextNode.getNextNode())

        # set nextNode to None
        nextNode = None


# node class
class Node:
    # default value of data and link is none if no data is passed
    def __init__(self, data=None, link=None):
        self.data = data
        self.link = link

    # method to update the data field of Node
    def updateData(self, data):
        self.data = data

    # method to set Link field the Node
    def setLink(self, node):
        self.link = node

    # method returns data field of the Node
    def getData(self):
        return self.data

    # method returns address of the next Node
    def getNextNode(self):
        return self.link


# main method
# creating LinkedList
myList = LinkedList()
myList.addToStart(1)
myList.addToEnd(2)
myList.addToEnd(3)
myList.addToEnd(4)
myList.addToEnd(5)
myList.addToEnd(6)
myList.addToEnd(7)
myList.addToEnd(8)
myList.addToEnd(9)
myList.addToEnd(10)
myList.addToEnd(11)
myList.display()

print("\nDeleting the third node from the Linked List")
myList.deleteNode(myList.head.getNextNode().getNextNode())
myList.display()