def set_size_hint(self, new_width, new_height):
self.__width_hint = new_width<EOL>self.__height_hint = new_height<EOL>self._repack()<EOL>
Set the minimum size for this widget.

The widget cannot be smaller than either the claim (which is 
calculated internally by the widget based on its own geometry) of the 
size hint (which can be explicitly provided by the developer).