On Tue, 14 Aug 2001, Skip Montanaro wrote: > TRACK_OBJECT math.sin > ... > LOAD_FAST math.sin > ... > UNTRACK_OBJECT math.sin What about threads? What if math.sin changes while in cache? Sincerely yours, Roman A.Suzi -- - Petrozavodsk - Karelia - Russia - mailto:rnd at onego.ru -