AttributeError: module ‘time’ has no attribute ‘clock’ in Python 3.8
From the Python 3.8 doc: 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.)