(self, item)
Delete graphics item from canvas.
        If item is"all" delete all graphics items.
Delete graphics item from canvas.
        If item is"all" delete all graphics items.
Delete graphics item from canvas . If item is all delete all graphics items .
def _delete(self, item):
        """Delete graphics item from canvas.
        If item is"all" delete all graphics items.
        """
        self.cv.delete(item)
def _delete ( self , item ) : self . cv . delete ( item )