Python 3.12 • Hacker News Board

Re: Python 3.12

#11

Post by titaniumtown » Mon, Oct 02, 2023, 1:27 PM UTC

zozbot234 wrote: post #9

Wait, what happened to Python 3.11 for Workgroups? Something's not right here.

That got a chuckle out of me, good one.

Re: Python 3.12

#12

Post by est » Mon, Oct 02, 2023, 1:29 PM UTC

> PEP 684, a unique per-interpreter GIL

We are on the track to remove GIL!

Re: Python 3.12

#13

Post by bloopernova » Mon, Oct 02, 2023, 1:29 PM UTC

oh cool, multi-line f-strings. With inline comments!

    f"This is the playlist: {", ".join([
        'Take me back to Eden',  # My, my, those eyes like fire
        'Alkaline',              # Not acid nor alkaline
        'Ascensionism'           # Take to the broken skies at last
    ])}"

Re: Python 3.12

#14

Post by zozbot234 » Mon, Oct 02, 2023, 1:30 PM UTC

bluish29 wrote: post #4

I think the support for isolated sub-interpreters with separate Global Interpreter Locks is the most interesting new feature in python. It is doubtful not the best way to offer some sort of concurrency but still a step closer to maybe one day get rid of GILs.

Well, that's where the whole "for Workgroups" part comes in I suppose. See my sibling comment.

Re: Python 3.12

#15

Post by Bostonian » Mon, Oct 02, 2023, 1:30 PM UTC

Alosra wrote: post #5

Everything aside, I enjoyed the "And now for something completely different" part.

I don't think political advocacy belongs in an announcement of a Python version.

Re: Python 3.12

#16

Post by qsort » Mon, Oct 02, 2023, 1:31 PM UTC

bluish29 wrote: post #4

I think the support for isolated sub-interpreters with separate Global Interpreter Locks is the most interesting new feature in python. It is doubtful not the best way to offer some sort of concurrency but still a step closer to maybe one day get rid of GILs.

Too bad there's no Python API available yet :(

It's scheduled to be delivered next year if I'm not mistaken.

The new syntax for generic types is also a very nice QOL improvement, you can now just do:

  class MyList[T]:
      ...

Re: Python 3.12

#17

Post by uoaei » Mon, Oct 02, 2023, 1:32 PM UTC

Bostonian wrote: post #15

Alosra wrote: post #5

Everything aside, I enjoyed the "And now for something completely different" part.

I don't think political advocacy belongs in an announcement of a Python version.

I don't think it's your authority to say what should or shouldn't belong in a release you have no contribution to!

Re: Python 3.12

#18

Post by thatcherthorn » Mon, Oct 02, 2023, 1:34 PM UTC

As now f-strings can contain any valid Python expression inside expression components, it is now possible to nest f-strings arbitrarily:
>>> f"{f"{f"{f"{f"{f"{1+1}"}"}"}"}"}"

'2'

Is anyone aware of the change to the interpreter that allows for this?

Re: Python 3.12

#19

Post by smallerfish » Mon, Oct 02, 2023, 1:34 PM UTC

The new generic typing seems intuitive - https://docs.python.org/3.12/whatsnew/3.12.html#pep-695-type.... I've never run into its gross predecessor: https://peps.python.org/pep-0484/#generics. Nice change.

Re: Python 3.12

#20

Post by robertlagrant » Mon, Oct 02, 2023, 1:34 PM UTC

uoaei wrote: post #17

Bostonian wrote: post #15

Earlier quoted context omitted.

I don't think political advocacy belongs in an announcement of a Python version.

I don't think it's your authority to say what should or shouldn't belong in a release you have no contribution to!

People are allowed to think things, and say what they think. Just as you did.