Re: How the heck does async/await work in Python 3.5

Path	csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail
From	Chris Angelico <rosuav@gmail.com>
Newsgroups	comp.lang.python
Subject	Re: How the heck does async/await work in Python 3.5
Date	Sat, 20 Feb 2016 18:57:23 +1100
Lines	13
Message-ID	<mailman.14.1455955075.13884.python-list@python.org> (permalink)
References	<mailman.224.1455746935.22075.python-list@python.org> <56c7d145$0$1597$c3e8da3$5496439d@news.astraweb.com> <9d968a2e-f23c-4c93-979d-43dfa610c343@googlegroups.com> <CALwzidnVrNmhbRhkoiCkwZbqw+7h8gd_TY5HLUMNs1ROcHzQhQ@mail.gmail.com>
Mime-Version	1.0
Content-Type	text/plain; charset=UTF-8
X-Trace	news.uni-berlin.de V5DwkTgscezEdaVYCDg9xANHj5L0F/Zp2NJfC6yigQyg==
Return-Path	<rosuav@gmail.com>
X-Original-To	python-list@python.org
Delivered-To	python-list@mail.python.org
X-Spam-Status	OK 0.002
X-Spam-Evidence	'H': 1.00; 'S': 0.00; 'received:209.85.223': 0.03; 'subject:Python': 0.05; 'exception.': 0.07; 'cc:addr:python- list': 0.09; 'subject:How': 0.09; '__future__': 0.09; 'none.': 0.09; 'propagate': 0.09; 'exception': 0.13; '2016': 0.16; 'cc:name:python': 0.16; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'received:209.85.223.173': 0.16; 'received:io': 0.16; 'received:psf.io': 0.16; 'wrote:': 0.16; 'cc:2**0': 0.20; 'cc:addr:python.org': 0.20; 'feb': 0.23; 'sat,': 0.23; 'import': 0.24; 'header:In-Reply-To:1': 0.24; 'equivalent': 0.27; 'separate': 0.27; 'question': 0.27; 'message-id:@mail.gmail.com': 0.27; 'mind,': 0.29; 'pep': 0.29; 'subject:/': 0.30; 'supposed': 0.31; 'another': 0.32; 'generally': 0.32; 'point': 0.33; 'raising': 0.33; 'gets': 0.35; 'received:google.com': 0.35; 'fresh': 0.35; 'returning': 0.35; 'but': 0.36; 'should': 0.36; 'received:209.85': 0.36; 'subject:work': 0.36; 'pm,': 0.36; 'subject:: ': 0.37; 'received:209': 0.38; 'subject:the': 0.39; 'future': 0.60; 'save': 0.60; '20,': 0.66; 'yourself': 0.73; 'chrisa': 0.84; 'discussion)': 0.84; 'to:none': 0.91; 'awaiting': 0.91
DKIM-Signature	v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:cc :content-type; bh=Nt1k0G7FhDiuqKIi/tjhZ0eI0kwm+ttiboILct2WfHs=; b=wO3bHnp2n5cG2MDWge4pMUe9bRabV3DOJK34ZfZ+bSxm2nIjuZpMBDjSqA/LkZz9u1 J6MqqWvbta81pybwziWIAoMXb8CbmmORnB+xlh+yMtAZyUqTYu6Pq20aeVEMLYUf4SHk zLtBEzvEmj3X6+tlQn9jN3gH0ZFUQw1eYvpNaq+EF51pJXToH8Cy3FujfmHG7bJNHYIf CQxWqAixQrMGYjqi9ca1p2ktgGijNlgvC5ZWZ6gS7YgOVCjbuvPC3i0SfpLx6ai+otbF QemFInbIFMXnvPKvVp6VMkKIsPK5AagliLZ9KR3YhP+O0ApmN+GlftwVTqizuhQircSZ /rOg==
X-Google-DKIM-Signature	v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:cc:content-type; bh=Nt1k0G7FhDiuqKIi/tjhZ0eI0kwm+ttiboILct2WfHs=; b=nI06FDqrHg80mQzRKKfh4uAnLjAcKwLoYNPUNbYnWP/IuB7Y7zqEzpti5PUmrrF6vY bbwzK5x6ShkZR2kYRAB0t8gImRdN2ql8+uXHGnjwDGVcysCXCJv2tEAOB09x1IYh2wcc CrdVxe74MGjymKJB3YY9ZrVp8OO/zXIoCq6xc5OLKjFrDcLPs8sLwhRREig1PXhJmJ+w Rb3zgRMEk5OxKjh7QGqzZOXAhJDCDHzGIpIhCl8YySXEkWJy1ubySd6R8+Ny2+fDOHCi GaaNzbqx2NsubFRNY3y6ot6+rTxVWDdCUokb/wpmKc6k1PBmgvdqiBW5kYWhYZmVbGGx gr2A==
X-Gm-Message-State	AG10YOQZif6u+we+BhTR0uiJjnDAqn5ttE/uAfEDT26mR9cggNxLkYOLiUmQmxd+0eA/l+eLG3ApCVletJCMkg==
X-Received	by 10.107.47.162 with SMTP id v34mr17034940iov.19.1455955043676; Fri, 19 Feb 2016 23:57:23 -0800 (PST)
In-Reply-To	<CALwzidnVrNmhbRhkoiCkwZbqw+7h8gd_TY5HLUMNs1ROcHzQhQ@mail.gmail.com>
X-BeenThere	python-list@python.org
X-Mailman-Version	2.1.21rc2
Precedence	list
List-Id	General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe	<https://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive	<http://mail.python.org/pipermail/python-list/>
List-Post	<mailto:python-list@python.org>
List-Help	<mailto:python-list-request@python.org?subject=help>
List-Subscribe	<https://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Xref	csiph.com comp.lang.python:103246

Show key headers only | View raw

On Sat, Feb 20, 2016 at 6:48 PM, Ian Kelly <ian.g.kelly@gmail.com> wrote:
> As another point that happens to be fresh in my mind, awaiting a
> Future on which an exception gets set is supposed to propagate the
> exception. I recently found that this breaks if the exception in
> question happens to be StopIteration (granted not one that should
> generally be allowed to propagate anyway, but that's a separate
> discussion) for the simple reason that raising StopIteration in a
> generator is equivalent to returning None.

Solved by PEP 479. Use "from __future__ import generator_stop" to save
yourself the pain.

ChrisA

Thread

How the heck does async/await work in Python 3.5 Mark Lawrence <breamoreboy@yahoo.co.uk> - 2016-02-17 22:08 +0000
  Re: How the heck does async/await work in Python 3.5 Steven D'Aprano <steve@pearwood.info> - 2016-02-20 13:36 +1100
    Re: How the heck does async/await work in Python 3.5 Rustom Mody <rustompmody@gmail.com> - 2016-02-19 21:24 -0800
      Re: How the heck does async/await work in Python 3.5 Rustom Mody <rustompmody@gmail.com> - 2016-02-19 21:34 -0800
        Re: How the heck does async/await work in Python 3.5 Paul Rubin <no.email@nospam.invalid> - 2016-02-19 22:44 -0800
          Re: How the heck does async/await work in Python 3.5 Steven D'Aprano <steve@pearwood.info> - 2016-02-21 18:17 +1100
            Re: How the heck does async/await work in Python 3.5 Paul Rubin <no.email@nospam.invalid> - 2016-02-20 23:34 -0800
      Re: How the heck does async/await work in Python 3.5 Ian Kelly <ian.g.kelly@gmail.com> - 2016-02-20 00:48 -0700
      Re: How the heck does async/await work in Python 3.5 Chris Angelico <rosuav@gmail.com> - 2016-02-20 18:57 +1100
      Re: How the heck does async/await work in Python 3.5 Ian Kelly <ian.g.kelly@gmail.com> - 2016-02-20 01:14 -0700
      Re: How the heck does async/await work in Python 3.5 Chris Angelico <rosuav@gmail.com> - 2016-02-20 19:49 +1100
      Re: How the heck does async/await work in Python 3.5 Ian Kelly <ian.g.kelly@gmail.com> - 2016-02-20 02:11 -0700
      Re: How the heck does async/await work in Python 3.5 Ian Kelly <ian.g.kelly@gmail.com> - 2016-02-20 02:21 -0700
    Re: How the heck does async/await work in Python 3.5 Christian Gollwitzer <auriocus@gmx.de> - 2016-02-20 07:53 +0100
      Re: How the heck does async/await work in Python 3.5 "Sven R. Kunze" <srkunze@mail.de> - 2016-02-22 23:16 +0100
      Re: How the heck does async/await work in Python 3.5 Ian Kelly <ian.g.kelly@gmail.com> - 2016-02-22 17:48 -0700
      Re: How the heck does async/await work in Python 3.5 "Sven R. Kunze" <srkunze@mail.de> - 2016-02-23 17:50 +0100
      Re: How the heck does async/await work in Python 3.5 Ian Kelly <ian.g.kelly@gmail.com> - 2016-02-23 10:37 -0700
      Re: How the heck does async/await work in Python 3.5 "Sven R. Kunze" <srkunze@mail.de> - 2016-02-23 20:42 +0100
      Re: How the heck does async/await work in Python 3.5 "Sven R. Kunze" <srkunze@mail.de> - 2016-02-23 22:05 +0100
      Re: [Python-ideas] How the heck does async/await work in Python 3.5 "Joao S. O. Bueno" <jsbueno@python.org.br> - 2016-02-23 18:25 -0300
      Re: [Python-ideas] How the heck does async/await work in Python 3.5 Paul Moore <p.f.moore@gmail.com> - 2016-02-24 09:59 +0000
      Re: [Python-ideas] How the heck does async/await work in Python 3.5 Victor Stinner <victor.stinner@gmail.com> - 2016-02-24 11:01 +0100
      Re: [Python-ideas] How the heck does async/await work in Python 3.5 王珺 <wjun77@gmail.com> - 2016-02-24 18:40 +0800
        Re: [Python-ideas] How the heck does async/await work in Python 3.5 Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2016-02-25 10:00 +1300
          Re: [Python-ideas] How the heck does async/await work in Python 3.5 王珺 <wjun77@gmail.com> - 2016-02-25 08:40 +0800
          Re: [Python-ideas] How the heck does async/await work in Python 3.5 Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2016-02-24 20:37 -0500
      Re: [Python-ideas] How the heck does async/await work in Python 3.5 Tem Pl <rtempl31@gmail.com> - 2016-02-24 06:39 -0800
        Re: [Python-ideas] How the heck does async/await work in Python 3.5 Marko Rauhamaa <marko@pacujo.net> - 2016-02-24 17:23 +0200
          Re: [Python-ideas] How the heck does async/await work in Python 3.5 Ian Kelly <ian.g.kelly@gmail.com> - 2016-02-24 08:41 -0700
            Re: [Python-ideas] How the heck does async/await work in Python 3.5 Marko Rauhamaa <marko@pacujo.net> - 2016-02-24 18:13 +0200
              Re: [Python-ideas] How the heck does async/await work in Python 3.5 Ian Kelly <ian.g.kelly@gmail.com> - 2016-02-24 09:47 -0700

csiph-web