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How do I use Queue in Python threading?

An example of an AI chatbot conversation about using Queue in Python threading.

😀
You

How do I use Queue in Python threading?

MagicBuddy
MagicBuddy

You can use the queue.Queue class from the queue module to manage tasks in a thread-safe way. Would you like a code example?

😀
You

Yes, please provide a code example.

MagicBuddy
MagicBuddy

Here's a simple example:

import threading
import queue

# Create a queue
task_queue = queue.Queue()

# Define a worker function
def worker():
    while True:
        task = task_queue.get()
        if task is None:
            break
        print(f'Processing task: {task}')
        task_queue.task_done()

# Create and start threads
threads = []
for i in range(3):
    t = threading.Thread(target=worker)
    t.start()
    threads.append(t)

# Add tasks to the queue
for task in range(10):
    task_queue.put(task)

# Block until all tasks are done
task_queue.join()

# Stop workers
for i in range(3):
    task_queue.put(None)
for t in threads:
    t.join()
😀
You

What does the task_done() method do?

MagicBuddy
MagicBuddy

The task_done() method indicates that a formerly enqueued task is complete. It’s used to keep track of the number of tasks that have been processed.

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