Sample LinkedList in Python

linkedlist.py

class Node:
    _data = None
    _next = None

    def __init__(self, data = None, next_node = None):
        self._data = data
        self._next = next_node

    # DATA PROPERTY
    @property
    def data(self):
        return self._data

    @data.setter
    def data(self, data):
        self._data = data

    # NEXT NODE PROPERTY
    @property
    def next(self):
        return self._next

    @next.setter
    def next(self, next):
        self._next = next

# SAMPLE USAGE
a = Node()
b = Node()
c = Node()

a.data = 10
a.next = b

b.data = 20
b.next = c

c.data = 30

print("A->B->C: {}".format(a.next.next.data))