How do I use deque from the collections module in Python?

How do I use deque from the collections module in Python?

You can use deque by importing it from the collections module. It allows you to add and remove elements from both ends efficiently.

Can you show me a simple example of how to create a deque?

Sure! You can create a deque like this: from collections import deque and then my_deque = deque([1, 2, 3]).

How do I append items to both ends of the deque?

You can use append() to add to the right end and appendleft() to add to the left end. For example, my_deque.append(4) adds 4 to the right.

What about removing items?

You can use pop() to remove from the right end and popleft() to remove from the left end. For instance, my_deque.pop() removes the last item.