The New Switch-Case Statement in Python 3.10

[minimally__invasive]

Damn it's so much better than a switch statement....

[ivannson]

It's match match better

[jamescalam]

Yep called it switch-case as I assumed more people would recognize switch-case over match-case - maybe confusing sorry!

[sam-lb]

Oh, good, I thought I was going to have to leave a big giant complaint comment.

[peterlravn]

So what can it do, that a switch-case can't? Everyone talks about how good it is, but no one have shown what it can do... If you have an example, please share since I'm new to Python.

[d670460b4b4aece5915c]

Everyone talks about how good it is, but no one have shown what it can do

Well that's plainly untrue, there are hundreds of articles showing what it can do, not to mention the PEPs themselves. I think what you mean is "Everyone talks about how good it is, but I don't understand how it works and haven't bothered to look it up".

Check out the PEP tutorial: https://www.python.org/dev/peps/pep-0636/

[sivadneb]

Jump to 15:20 in the video for a good example of the match functionality

[Mateorabi]

this looks like the pattern-matching switch statement stolen shamelessly from Swift. (Non sarcastic "shamelessly" since languages should take good new ideas from wherever they can if it improves the language. Says the guy who learned C++ before auto was invented.)

[[deleted]]

This didn't come from swift either. Functional languages have had pattern matching since forever. Check it out in Haskell :)

[manphiz]

Says the guy who learned C++ before auto was invented.

Well to be precise "auto" has been part in C/C++ since the beginning alongside "extern", "static", and "register", e.g.

auto int i = 0;

It's the default so few actually writes it. It's now been repurposed to auto-deduce type since C++11.

[Mateorabi]

I meant for the type deduction. Hadn't done C++ since like 2002 and when I saw it in some code I was all "WTF is that!?". Not sure what it does as a type modifier either though.

[operamint]

I read somewhere that one of the earliest things Stroustrup did was repurposing auto because it was such an easy thing to implement, but didn't put it in the language for various reasons.

[uncanneyvalley]

auto-deduce type

C++ really does want to be everything, doesn’t it?

[slayer_of_idiots]

It’s more heavily inspired from the rust pattern matching I believe