?? wrote: > The problem like this: > t = time.clock() > AttributeError: module 'time' has no attribute 'clock' Quoting https://docs.python.org/3/whatsnew/3.8.html#api-and-feature-removals """ The function time.clock() has been removed, after having been deprecated since Python 3.3: use time.perf_counter() or time.process_time() instead, depending on your requirements, to have well-defined behavior. (Contributed by Matthias Bussonnier in bpo-36895.) """