How do I perform operations on a deque in Python?

How do I perform operations on a deque in Python?

You can use the collections.deque class in Python for deque operations. What specific operations are you interested in?

Can you show me how to append and pop elements?

Sure! You can use append() to add elements to the right and appendleft() to add to the left. To remove elements, use pop() for the right and popleft() for the left.

What about rotating the deque?

You can use the rotate(n) method to rotate the deque. A positive n rotates to the right, while a negative n rotates to the left.

Can you give me a code example?

Absolutely! Here's a simple example:

from collections import deque

my_deque = deque([1, 2, 3])
my_deque.append(4)  # Adds 4 to the right
my_deque.appendleft(0)  # Adds 0 to the left
my_deque.rotate(1)  # Rotates right by 1
print(my_deque)  # Output: deque([3, 4, 0, 1, 2])