Think of a tuple as a list, except it is immutable, meaning that it cannot be changed after you've created it.
Tuples use rounded parentheses
() instead of the square brackets
Here's an example of creating some tuples:
tuple_1 = (1, 2, 3) tuple_2 = () tuple_3 = ("foo", "bar")
Sometimes you have to use a tuple instead of a list. For example, tuples are hashable while lists are not. This means that you can use a tuple as keys in a dictionary, for example.