def METHOD_NAME(self):
    """(re)-set the tooltip's screen position"""
    x, y = self.get_position()
    root_x = self.anchor_widget.winfo_rootx() + x
    root_y = self.anchor_widget.winfo_rooty() + y
    self.tipwindow.wm_geometry("+%d+%d" % (root_x, root_y))