[Haskell-cafe] Monad of no `return` Proposal (MRP): Moving `return` out of `Monad`

Mike Meyer mwm at mired.org
Wed Oct 7 23:39:19 UTC 2015

On Wed, Oct 7, 2015 at 6:05 PM Brandon Allbery <allbery.b at gmail.com> wrote:

> On Wed, Oct 7, 2015 at 4:54 PM, Bardur Arantsson <spam at scientician.net>
> wrote:
>> Please consider that the the way practical development really happens[2]
> ...among web developers, who of course are the only real developers?
> [...]
> I had heard that the financial users generally refused to have anything to
> do with the Haskell community.
> Now I know why.

I'm curious - do "practical" developers really feel like they have to rush
out and update their tool chain whenever a new version of part of it comes
out? Most of the projects I've worked on considered the language version as
a fixed part of the technology stack, and almost never updated it. Even
when using Python, which valued not breaking working code more than it's
own zen. But changing anything that potentially affected all the code in a
working project was pretty much never done, and always involved a lot of

So the worst headache I got from language evolution was from trying to
remember which set of features I had available for each project. No, that's
second - the biggest one was from arguments about when we should adopt a
new version. But breaking working code pretty much didn't happen.
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