def __init__(self, stacks, position):
        """
        Pass a reference to the stacks object that holds all the blocks
        and the index of the initial stack of the block
        """
        Block.__init__(self, stacks, position)
        self.box = box(pos=(position-(stacks.blockCount/2), 0, 0), size=(.9,.9,.9), color=color.blue)
        self.label = label(pos=array(self.box.pos) + array([0,0,1]), text=str(position), opacity=0, box=0, line=0)

        Pass a reference to the stacks object that holds all the blocks
        and the index of the initial stack of the block
        
recipes/Python/361168_Vpython_example/recipe-361168.py