Here we’ll walk through the details and show you how to roll your own, illustrating along the way just why they’re useful. You’re probably familiar with looping over objects in Python using ...

Consider [Tushar Sadhwani] who wanted to create a classic C-style for loop inside of Python. He did it ... But you never know when you might need to do something exotic and one of these techniques ...

The point is that Python has a way to economically express things like loops that iterate over multiple ... slower by an order of magnitude or more. Why so slow? It isn’t just because most ...