I don't understand how this code works??

Question

nums = (55, 44,
33,22)
print (nums[:2][-1])

Answer 1

It's called list slicing.

list[start:stop:step]
Here you have only [:2] means, start is index 0 (default), stop is index 2, step is 1 (default)

For more read here:
https://www.programiz.com/JUMP_LINK__&&__python__&&__JUMP_LINK-programming/examples/list-slicing

So nums[:2] -> (55,44)
55 is at index 0, 44 is at index 1. Since you stopped at index 2 33 is not part of your list.

[-1] means in python the last index.
[-2] would be the second last index.

nums[:2][-1] prints 44 because 44 is the last element of (55,44)

Answer 2

Ohh yesss
I understand
Thanks alottt

Answer 3

This code prints the last element of the first two elements in the tuple `nums`. Let's break it down:

- `nums[:2]` selects the first two elements of the tuple: `(55, 44)`.
- `nums[:2][-1]` then selects the last element of this result, which is `44`.

So, the output of the code would be `44`.