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

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

You can use deque by importing it from the collections module. It allows for fast appends and pops from both ends.

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

Sure! Here's a basic example:

from collections import deque

# Create a deque
my_deque = deque([1, 2, 3])

# Append to the right
my_deque.append(4)

# Append to the left
my_deque.appendleft(0)

print(my_deque)  # Output: deque([0, 1, 2, 3, 4])

What are the main advantages of using deque over a list?

The main advantages of deque are its O(1) time complexity for appends and pops from both ends, unlike lists which are O(n) for these operations.