Expanded demo code for Python3 logging with multiprocessing

log_from_main.py

def main():
    queue = multiprocessing.Queue(-1)
    # set up main logger following example from work_process
    worker_configurer(queue)
    main_logger = logging.getLogger('main')

    listener = multiprocessing.Process(
        target=listener_process, args=(queue,))
    listener.start()

    main_logger.info('Logging from main')
    workers = []
    for i in range(3):
        worker = multiprocessing.Process(target=worker_process, args=(queue,))
        workers.append(worker)
        worker.start()
    for w in workers:
        w.join()
    main_logger.info('main function ends')