Can you explain queue implementation in Python?

Can you explain queue implementation in Python?

Sure! A queue is a data structure that follows the First In First Out (FIFO) principle. In Python, you can implement a queue using lists or the collections.deque class.

What are the advantages of using collections.deque over lists?

collections.deque is optimized for fast appends and pops from both ends, making it more efficient for queue operations compared to lists.

Can you show me a simple code example of a queue using collections.deque?

Absolutely! Here's a simple example:

from collections import deque

queue = deque()
queue.append('a')  # Enqueue
queue.append('b')
print(queue.popleft())  # Dequeue: prints 'a'

How would I implement a priority queue in Python?

You can implement a priority queue using the heapq module, which allows you to maintain a list in sorted order. Would you like an example?