How to implement photo resizing in python?

Question

Python

You need to implement photo resizing in python, you
specify a folder with photos, you specify the required width of the photos, and then the program must convert all images in the folder to the required width in accordance with the proportions.
And now the question itself: with the help of which plugin or library can this program be implemented, what else do you need to know for implementation?
I would be grateful for helpful replies.
Ps I am studying a programming language and have chosen such a task for myself, I do not ask for a ready-made solution, I will implement it myself