example of using Python3's concurrent.futures module

concurrent_futures_example.py

from concurrent.futures import ProcessPoolExecutor
import concurrent.futures

from halas.parsers import boxscore

GAMES = [ ... ]

results = []
with ProcessPoolExecutor(max_workers=4) as executor:
    future_results = {executor.submit(boxscore, game):
                      game for game in GAMES}

    for future in concurrent.futures.as_completed(future_results):
        print('completed', future_results[future])
        box = future.result()
        results.append(box)
        print('results', len(results))

print('done')