How can I implement queues using the Python collections module?

How can I implement queues using the Python collections module?

You can use the deque class from the collections module to implement a queue in Python. It allows for fast appends and pops from both ends.

Can you show me a simple example of how to use deque as a queue?

Sure! Here's a basic example:

from collections import deque

# Create a queue
queue = deque()

# Add elements to the queue
queue.append('a')
queue.append('b')
queue.append('c')

# Remove elements from the queue
print(queue.popleft())  # Output: 'a'
print(queue.popleft())  # Output: 'b'

What are the advantages of using deque over a list for queues?

The deque is 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.