Initial size needs to be as per the size of root i.e. 0 or 1 or n(if applicable)

[SmitaPatankar]

Python/LinkedLists/LinkedList0.py

Line 24 in ba3e6e6

self.size = 0

User is given flexibility to either create linked list with root as None or with a root node given by them.
i.e. size could be 0 or 1

If applicable:
User can also pass root that already has more next nodes.
i.e. size could be n

But, initial size is always set as 0 instead of calculating and setting it as per above logic