How can I use sets to store unique values in Python?

How can I use sets to store unique values in Python?

You can use sets in Python to store unique values because they automatically eliminate duplicates. For example, you can create a set like this: my_set = {1, 2, 3, 2} and it will only keep {1, 2, 3}.

Can you show me how to add and remove items from a set?

Sure! You can add items using the add() method, like this: my_set.add(4). To remove an item, use remove(), like this: my_set.remove(2).

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

If you try to remove an item that doesn't exist, Python will raise a KeyError. To avoid this, you can use the discard() method, which won't raise an error if the item is not found.

Are there any other operations I can perform on sets?

Yes! You can perform operations like union, intersection, and difference. For example, set1.union(set2) combines both sets, while set1.intersection(set2) gives you the common elements.