Retrieves a tuple with the x,y coordinates of the upper left point of the rect. 
        Requires the coordinates, width, height to be numbers

def getTopLeft(self):
        """
        Retrieves a tuple with the x,y coordinates of the upper left point of the rect. 
        Requires the coordinates, width, height to be numbers
        """
        return (float(self.get_x()), float(self.get_y())+ float(self.get_height()))