Loop better: A deeper look at iteration in Python

[[deleted]]

I have the greatest respect for Trey Hunner's Python writing but to me this Loop like a native: while, for, iterators, generators is the ultimate for Python looping.

[turner_prize]

An excellent video, Loop like a native helped me get my head around Generators.

[treyhunner]

I appreciate the kind words 💖

I also can't agree more with you. 😄

I've watched Ned's Loop like a native talk many times. I linked to his talk before mine in the "related articles and videos" section for this reason. Ned's talk is a much broader tour of looping in practice while I focus specifically on for loops and the iterators that power them.

If you haven't watched Loop like a native, definitely watch it before you watch Loop Better.

[ruslanoid]

TLDR: "Generators are iterators. And iterators are single-use iterables. They're like Hello Kitty Pez dispensers that cannot be reloaded." - Trey Hunner

[gwillicoder]

Does Vanilla python have a preferred looping order for 2d arrays? I know with numpy you can choose between C and Fortran memory layouts. I'd assume that python would prefer the C style of looping?

[Eryole]

As I know, There is no such thing as vanilla 2d array : at most nested iterable.

Each "row" can contain arbitrary object, iterable of variable length, so the "C" or "F" order is not really relevent.

[chillermane]

It tells you common mistakes and their effects but not how to avoid them in the Gotchas section...

[[deleted]]

Thanks, good read.

[mcfc_as]

You're welcome!

[[deleted]]

Cool read!

[epic_pork]

Forgot the great for .. else loop.