What are sets in Python and how do I use them?

What are sets in Python and how do I use them?

Sets in Python are unordered collections of unique elements. You can create a set using curly braces or the set() function.

Can you show me how to create a set and add elements to it?

Sure! You can create a set like this: my_set = {1, 2, 3}. To add an element, use my_set.add(4).

What happens if I try to add a duplicate element?

If you add a duplicate element, the set will ignore it, as sets do not allow duplicate values.

How can I remove an element from a set?

You can remove an element using the remove() method, like this: my_set.remove(2). If the element is not found, it will raise a KeyError.