What is the mutability of sets in Python?

What is the mutability of sets in Python?

In Python, sets are mutable, meaning you can add or remove elements after the set has been created.

Can you give me an example of modifying a set?

Sure! You can use the add() method to add an element and the remove() method to remove an element from a set.

What happens if I try to remove an element that doesn't exist?

If you try to remove an element that doesn't exist, Python will raise a KeyError. You can use discard() instead, which won't raise an error.

Are there any operations that return a new set instead of modifying the original?

Yes, operations like union, intersection, and difference return new sets without modifying the original sets.