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Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/library/queue.rst | 28 |
1 files changed, 12 insertions, 16 deletions
diff --git a/Doc/library/queue.rst b/Doc/library/queue.rst index 2eeab5e..0ec5900 100644 --- a/Doc/library/queue.rst +++ b/Doc/library/queue.rst @@ -190,32 +190,28 @@ fully processed by daemon consumer threads. Example of how to wait for enqueued tasks to be completed:: + import threading, queue + + q = queue.Queue() + def worker(): while True: item = q.get() - if item is None: - break - do_work(item) + print(f'Working on {item}') + print(f'Finished {item}') q.task_done() - q = queue.Queue() - threads = [] - for i in range(num_worker_threads): - t = threading.Thread(target=worker) - t.start() - threads.append(t) + # turn-on the worker thread + threading.Thread(target=worker, daemon=True).start() - for item in source(): + # send thirty task requests to the worker + for item in range(30): q.put(item) + print('All task requests sent\n', end='') # block until all tasks are done q.join() - - # stop workers - for i in range(num_worker_threads): - q.put(None) - for t in threads: - t.join() + print('All work completed') SimpleQueue Objects |