Repository navigation
async and await should be keywords in 3.7 #74591
Description
Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.
Show more details
GitHub fields:
assignee = 'https://github.com/gvanrossum'
closed_at = <Date 2017-10-06.03:28:00.513>
created_at = <Date 2017-05-19.21:27:41.864>
labels = ['interpreter-core', 'type-bug', '3.7']
title = 'async and await should be keywords in 3.7'
updated_at = <Date 2019-02-27.23:41:58.653>
user = 'https://github.com/JelleZijlstra'bugs.python.org fields:
activity = <Date 2019-02-27.23:41:58.653>
actor = 'gvanrossum'
assignee = 'gvanrossum'
closed = True
closed_date = <Date 2017-10-06.03:28:00.513>
closer = 'yselivanov'
components = ['Interpreter Core']
creation = <Date 2017-05-19.21:27:41.864>
creator = 'JelleZijlstra'
dependencies = []
files = []
hgrepos = []
issue_num = 30406
keywords = []
message_count = 11.0
messages = ['293976', '293994', '293997', '294003', '303793', '303794', '305549', '305634', '314046', '314051', '336783']
nosy_count = 9.0
nosy_names = ['gvanrossum', 'rhettinger', 'vstinner', 'giampaolo.rodola', 'lukasz.langa', 'quentel', 'yselivanov', 'JelleZijlstra', 'miss-islington']
pr_nums = ['1669', '6143', '6145']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue30406'
versions = ['Python 3.7']
Activity
JelleZijlstra commentedon May 19, 2017
According to PEP-492, async and await should be full keywords in Python 3.7, but this hasn't been implemented yet. I have a patch ready that I'll submit as a PR soon.
rhettinger commentedon May 20, 2017
+1 These words are here to stay.
That said, Guido needs to explicitly sign-off on any new language keywords.
gvanrossum commentedon May 20, 2017
Yes, I signed off on this when I approved that PEP.
On May 19, 2017 20:10, "Raymond Hettinger" <report@bugs.python.org> wrote:
vstinner commentedon May 20, 2017
It's time to remove Yury's hacks from the parser and get a sane syntax ;-) I agree to make async and await real keywords!
1st1 commentedon Oct 6, 2017
New changeset ac31770 by Yury Selivanov (Jelle Zijlstra) in branch 'master':
bpo-30406: Make async and await proper keywords (bpo-1669)
ac31770
1st1 commentedon Oct 6, 2017
Thanks a lot, Jelle!
PierreQuentel commentedon Nov 4, 2017
According to PEP-492, async and await should have been deprecated in 3.5 and 3.6, but I don't think they have been :
don't raise any deprecation warning in 3.6.
Since version 3.7 will break existing code with a SyntaxError, could it be possible to have something explicit in the SyntaxError message for these new keywords, for instance
SyntaxError : 'async' is a keyword
I don't speack C so I can't provide a patch, sorry.
vstinner commentedon Nov 6, 2017
python3 requires -Wd to display DeprecationWarning:
https://mail.python.org/pipermail/python-dev/2017-November/150149.html
Yury Selivanov: "We had PendingDeprecationWarning for async/await names in 3.5, and DeprecationWarning in 3.6."
ambv commentedon Mar 18, 2018
New changeset f64aae4 by Łukasz Langa (Jelle Zijlstra) in branch 'master':
Revert "bpo-30406: Make async and await proper keywords (bpo-1669)" (GH-6143)
f64aae4
miss-islington commentedon Mar 18, 2018
New changeset a90df50 by Miss Islington (bot) in branch '3.7':
Revert "bpo-30406: Make async and await proper keywords (GH-1669)" (GH-6143)
a90df50
gvanrossum commentedon Feb 27, 2019
Sadly if I get my way this will all be reverted -- see https://bugs.python.org/issue35975. I'm working on a PR.