def update(self, frame_no):
        """
        Redraw the widgets inside this Layout.

        :param frame_no: The current frame to be drawn.
        """
        for column in self._columns:
            for widget in column:
                widget.update(frame_no)
def update ( self , frame_no ) : for column in self . _columns : for widget in column : widget . update ( frame_no )
Redraw the widgets inside this Layout.

        :param frame_no: The current frame to be drawn.