What are the performance differences between set and frozenset in Python?

What are the performance differences between set and frozenset in Python?

In Python, a set is mutable, meaning you can add or remove elements, while a frozenset is immutable. This affects performance.

Can you explain how their performance differs in terms of speed?

Sure! Generally, frozensets can be faster for membership tests because they are hashable and can be used as dictionary keys.

Are there any scenarios where I should prefer using a set over a frozenset?

Yes, if you need to modify the collection by adding or removing elements, you should use a set. Use frozenset for fixed collections.

What about memory usage? Is there a significant difference?

Frozensets typically use slightly more memory due to their immutability, but the difference is usually negligible unless dealing with large datasets.