What tools and methods have you used in solving queue processing tasks?

In Python, the following tools and methods are often used for working with queues:

1. queue module — provides Queue, LifoQueue, PriorityQueue classes for thread-safe queue operations.

from queue import Queue
q = Queue()
q.put(1)
item = q.get()

2. collections.deque collection — a double-ended queue, efficient for adding and removing elements from both ends.

from collections import deque
queue = deque()
queue.append(1)  # enqueue
item = queue.popleft()  # dequeue

3. multiprocessing.Queue module — for data exchange between processes.

4. Using lists — for simple cases, but insert/delete operations at the beginning of the list are inefficient.

5. Algorithmic methods — for example, implementing a priority queue using heapq.

The choice depends on thread safety requirements, performance, and the specifics of the task.