[icxa]

Have you ever worked in a large engineering organization full of engineers with varying degrees of experience all trying to accomplish the same goal?

I can't imagine anyone has ever tried to do engineering at scale (people wise) and did not find the value in static typing.

It's why startups eventually moved off RoR once they started scaling. It's why there is such a large push to type JavaScript (have you seen the rollbar article about the top 10 errors in JavaScript? All but one have to do with types: https://rollbar.com/blog/top-10-javascript-errors/), it's why Facebook created Hack, and outside of parentheses repulsion, it's probably why so few large projects have been written in a LISP or LISP descendant.

Python is great for small: small teams, small organizations, small projects with a few dedicated tasks, small scripting tasks. Most people aren't trying to take anything away from python here in the comments save a few irrational responses.

*again want to stress in my comment when I speak of scale I mean scaling people wise: more organizational structures in your company, more engineers, more collaboration between teams.

[flavio81]

>I can't imagine anyone has ever tried to do engineering at scale (people wise) and did not find the value in static typing.

>why so few large projects have been written in a LISP or LISP descendant

The major dialect of Lisp, Common Lisp, is strongly typed, and many large projects have been written in it, for CAD/CAM, controlling a NASA spaceship, complete operating systems (Open Genera), the Mirai 3D graphics suite used for creating Gollum in "the lord of the rings", etc.

[tus88]

From the link:

> 1. Uncaught TypeError: Cannot read property If you’re a JavaScript developer, you’ve probably seen this error more than you care to admit. This one occurs in Chrome when you read a property or call a method on an undefined object.

Does typing stop null object errors in JS, Java or C for that matter? No. You need to continually check for null objects in all langs I use including Python. It seems most of the bugs on that page are of a similar vein.

[joelfolksy]

Null reference errors in Java and C are due to The Billion Dollar Mistake, which is a specific deliberate weakening of a static type system. Statically-typed languages that do not commit The Billion Dollar Mistake do not have null reference errors.

[jnwatson]

And in the same way that folks are adding typing to JavaScript, it has been added to Python.

Python typing is quite similar to Flow, a JavaScript type checker.

[triceratops]

> It's why startups eventually moved off RoR once they started scaling.

I thought it was because of Ruby's poor performance characteristics.

[tus88]

I assume we are all taking about Twitter and that's what I thought too.

[icxa]

The counter-example to this is github, and obviously basecamp, however.