What is a namedtuple in Python and how is it immutable?

What is a namedtuple in Python and how is it immutable?

A namedtuple is a subclass of Python's tuple that allows you to define a tuple with named fields. It's immutable, meaning once created, you cannot change its values.

Can you give me an example of how to create a namedtuple?

Sure! You can create a namedtuple using the collections.namedtuple function. For example:

from collections import namedtuple

Point = namedtuple('Point', ['x', 'y'])
point = Point(10, 20)

How do I access the values in a namedtuple?

You can access the values in a namedtuple using dot notation. For example, point.x will give you 10 and point.y will give you 20.

What happens if I try to change a value in a namedtuple?

If you try to change a value in a namedtuple, you'll get an AttributeError because namedtuples are immutable.