def __init__(self, parent, width='100%', bgcolor='aaa', **kw):
        kw['y'] = parent.getStyle().font_size - parent.height
        super(Heading, self).__init__(parent, width=width, **kw)
        self.layout = layouts.Horizontal(self, valign='top', halign='fill',
            padding=2)
dataset/ETHPy150Open ardekantur/pyglet/contrib/wydget/wydget/widgets/table.py/Heading.__init__/swapped operands of `-`