How to Write Memory Efficient Loops in Python

A visual guide to generators and three ways to implement them

Photo by Tine Ivanič on Unsplash

In python, when you build a list of numbers, images, files, or any other object that you want to iterate through, you’re essentially piling up memory as you put new items on the list, i.e. every time you do your_list.append(new_item) your list consumes a chunk of memory equal to sys.getsizeof(new_item). The problem here is…