def __init__(self, i, at_x, at_y, rank=None,suit=None):

        self.rank = rank
        self.suit = suit

        points = [(1-at_x,at_y-1),(at_x-1,at_y+1),(at_x+1,at_y+1),(at_x+1,at_y-1)]
        super(PlayingCard, self).__init__(i, at_x, at_y,points)
dataset/ETHPy150Open sightmachine/SimpleCV/SimpleCV/Features/PlayingCards/PlayingCard.py/PlayingCard.__init__/swapped operands of `-`