What is mutability in lists and sets?

What is mutability in lists and sets?

Mutability refers to the ability of an object to be changed after it is created. In Python, lists are mutable, meaning you can modify them, while sets are also mutable but have unique properties.

Can you give me an example of a mutable list?

Sure! Here's an example: my_list = [1, 2, 3]. You can change it by doing my_list[0] = 10, which will change the list to [10, 2, 3].

What about sets? How do they differ?

Sets are also mutable, but they only store unique elements. For example, my_set = {1, 2, 3}. If you try to add a duplicate like my_set.add(2), it won't change the set.

Are there any performance differences between lists and sets?

Yes, sets are generally faster for membership tests because they use a hash table, while lists require a linear search.