class Game():
    def __init__(self):
        self._score = 0

    def roll(self, pins):
        pass

    def score(self):
        return 0

class Game():
    def __init__(self):
        self._score = 0

    def roll(self, pins):
        self._score += pins

    def score(self):
        return self._score

Update score in Game class methods
[Python] Update score in Game class methods
