The new timeline means Python 3.9 will ship in October 2020. ... In Python 3.9, several Python built-ins — range, tuple, set, frozenset, list, dict — use vectorcall internally to speed up ...

Updating Means The demo implements function update_means() as shown in Listing 3. Conceptually, calculating the mean of a set of vectors is simple, but the code is a bit trickier than you might expect ...