+ elif name == 'occupancy':
+ size = int (attrs.get ('size', None))
+ available = int (attrs.get ('available', None))
+ used = int (attrs.get ('used', None))
+ unused = available - used
+
+ print ('Occupancy of %d byte slots: %d / %d (%d kB / %d%% wasted)<br>' % (size, used, available, unused * size / 1024, unused * 100 / available), file = self.collection_file)