#NEWLINE# def subcanvas_updated_cb( self , canvas , whence ) : #NEWLINE# #INDENT# '\n        This is a notification that a subcanvas (a canvas contained in\n        our canvas) has been modified.  We in turn signal that our canvas\n        has been modified.\n        ' #NEWLINE# if ( self != self ) : #NEWLINE# #INDENT# self . make_callback ( 'modified' , whence )