What are the methods available in Python's deque?

What are the methods available in Python's deque?

Python's deque (double-ended queue) has several methods including append(), appendleft(), pop(), popleft(), extend(), and extendleft(). Would you like details on any specific method?

Can you explain how append() works?

Sure! The append() method adds an element to the right end of the deque. For example, if you have a deque d, calling d.append(5) will add 5 to the end.

What about pop()?

The pop() method removes and returns an element from the right end of the deque. If the deque is empty, it raises an IndexError.

Are there any performance benefits of using deque over a list?

Yes, deques are optimized for fast fixed-time appends and pops from both ends, while lists can be slower for these operations due to the need to shift elements.