Am 10.08.2016 um 19:17 schrieb Sven R. Kunze:
On 09.08.2016 05:23, Nick Coghlan wrote:
On 9 August 2016 at 08:37, Sven R. Kunze <[email protected]
<mailto:[email protected]>> wrote:
From what I've heard in the wild, that most if not all pieces of async are
mirroring existing Python features. So,
building async basically builds a parallel structure in Python resembling
Python. Async generators complete the
picture. Some people (including me) are concerned by this because they feel that
having two "almost the same
pieces" is not necessarily a good thing to have. And not necessarily bad
but it feels like duplicating code all
over the place especially as existing functions are incompatible with async.
It's a known problem that applies to programming language design in general
rather than being Python specific:
http://journal.stuffwithstuff.com/2015/02/01/what-color-is-your-function/
If it's a such well-known **problem**, why does it even exist in Python in the
first place? ;-)
I don't buy that one couldn't have avoided it.
Lately, I talked to friend of mine about async and his initial reaction was like
"hmm that reminds me of early
programming days, where you have to explicitly tell the scheduler to get control
back". He's much older than me, so I
think it was interesting for him to see that history is repeating again.
Up to now there is only one answer to the question "Is `await` in Python3
Cooperative Multitasking?"
http://stackoverflow.com/questions/38865050/is-await-in-python3-cooperative-multitasking
The user there writes: [about await] That sounds quite like Cooperative
multitasking to me.
In 1996 I was a student at university and was told that preemptive multitasking
is better.
Since tools like http://python-rq.org/ can be implemented in Python2.7 I ask
myself: why change the language?
My opinion: if you want to do parallel processing, use a tool like python-rq or
celery.
Regards,
Thomas Güttler
--
Thomas Guettler http://www.thomas-guettler.de/
_______________________________________________
Python-ideas mailing list
[email protected]
https://mail.python.org/mailman/listinfo/python-ideas
Code of Conduct: http://python.org/psf/codeofconduct/
