In this lesson, you’ll learn how to create generator functions, and how to use the
yield statement. Generator functions are a special kind of function that return a lazy iterator. These are objects that you can loop over like a list. However, unlike lists, lazy iterators do not store their contents in memory.
You’ll also compare list comprehensions and generator expressions. Once you’ve learned the difference in syntax, you’ll compare the memory footprint of both, and profile their performance using
MrSteve3000 on June 26, 2020
In your cProfile examples, I see you are using i * 2 instead of exponentiation. I tried the code both ways, and of course the generator expression is still a bit slower, but not as dramatically.