Returns tuple key rect of right cell

def get_right_key_rect(self):
        """Returns tuple key rect of right cell"""

        key_right = self.row, self.col + 1, self.tab

        border_width_right = \
            float(self.cell_attributes[self.key]["borderwidth_right"]) / 2.0

        rect_right = (self.x+self.width, self.y,
                      border_width_right, self.height)
        return key_right, rect_right