code: def strokewidth(self, w=None):
          '''Set the stroke width.
  
          :param w: Stroke width.
          :return: If no width was specified then current width is returned.
          '''
          if w is not None:
              self._canvas.strokewidth = w
          else:
              return self._canvas.strokewidtf strokewidth(self, w=None):
          '''Set the stroke width.
  
          :param w: Stroke width.
          :return: If no width was specified then current width is returned.
          '''
          if w is not None:
              self._canvas.strokewidth = w
          else:
              return self._canvas.strokewidth
docs: Set the stroke width.
  
          :param w: Stroke width.
          :return: If no width was specified then current width is returned.