How can I improve the performance of Python's collections module?

How can I improve the performance of Python's collections module?

You can improve performance by using the right data structures, like deque for queues or Counter for counting hashable objects.

What are the differences between list and deque in terms of performance?

Lists are faster for indexing, while deques are optimized for fast appends and pops from both ends.

When should I use defaultdict instead of a regular dictionary?

Use defaultdict when you want to avoid key errors and provide a default value for non-existent keys.

Can you give me an example of using Counter?

Sure! You can use Counter to count occurrences of elements in a list: from collections import Counter; counts = Counter(['a', 'b', 'a']).

Are there any performance benchmarks comparing these collections?

Yes, you can find benchmarks online that compare the performance of different collections in various scenarios.