How do I use queues in Python's collections module?

How do I use queues in Python's collections module?

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

Can you show me a simple example of how to implement 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')

# Remove an element from the queue
first = queue.popleft()
print(first)  # Output: 'a'

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.

Are there any limitations I should be aware of when using deque?

One limitation is that deque does not support random access like lists do, so accessing elements by index is slower.