Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.7/screenlets/__init__.py", line 1906, in composite_changed
    self.remove_shape() # removing previous set shape , this is absolutly necessary
  File "/usr/lib/pymodules/python2.7/screenlets/__init__.py", line 1578, in remove_shape
    self.__shape_bitmap = screenlets.create_empty_bitmap(w, h)
AttributeError: 'module' object has no attribute 'create_empty_bitmap'