class Game(object):
    '''Represents a game of Dudo.'''

    def __init__(self, playername):
        pass

    def makeBid(self, bid):
        '''Change the latest bid.'''
        pass

    def callBid(self):
        '''The bid made by the previous player is called.'''
        pass

    def callSpotOn(self):
        '''The player believes the last bid to be spot on.'''
        pass

    def nextTurn(self):
        '''Play proceeds to the next player.'''
        pass

    def newRound(self, firstPlayer):
        '''Start a new round from the given player.'''
        pass

Create a stub Game class