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Issue27080

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classification
Title:Implement the formatting part of PEP 515, '_' in numeric literals.
Type:enhancementStage:resolved
Components:Interpreter CoreVersions:Python 3.6
process
Status:closedResolution:fixed
Dependencies:Superseder:
Assigned To: eric.smithNosy List: Rosuav, brett.cannon, eric.smith, georg.brandl, ned.deily, python-dev
Priority:release blockerKeywords:patch

Created on2016-05-21 20:38 byeric.smith, last changed2022-04-11 14:58 byadmin. This issue is nowclosed.

Files
File nameUploadedDescriptionEdit
underscores_decimal_only.patchRosuav,2016-08-19 13:24review
underscores_all_bases.patchRosuav,2016-08-19 13:34review
underscores_with_tests.patchRosuav,2016-08-19 13:52review
moar-tests.patchRosuav,2016-09-07 06:33review
Messages (13)
msg266023 -(view)Author: Eric V. Smith (eric.smith)*(Python committer)Date: 2016-05-21 20:38
I've separated this out fromissue 26331, so as to not interfere with discussions and code reviews for the parsing portion of the PEP.
msg273093 -(view)Author: Eric V. Smith (eric.smith)*(Python committer)Date: 2016-08-19 08:23
Unfortunately I'm not going to have time to implement this before 3.6 beta 1, so I'm un-assigning it to myself. I'll post to python-dev and hopefully someone else can get to it. Apologies for waiting so long.
msg273117 -(view)Author: Chris Angelico (Rosuav)*Date: 2016-08-19 13:24
Here's a first-cut patch. No docs, no tests, and applies only to decimal formatting. It involves redefining the thousands_separators flag from being a boolean to being a three-state flag (none, comma, or underscore), and (ab)uses LT_*_LOCALE to carry that same information around.
msg273120 -(view)Author: Chris Angelico (Rosuav)*Date: 2016-08-19 13:34
Hmm, adding bin/oct/hex support didn't turn out that hard. Although it feels like this code is getting hackish. Definitely needs code review!
msg273123 -(view)Author: Chris Angelico (Rosuav)*Date: 2016-08-19 13:52
Hmm, strange. Comma formatting never seems to have had tests added. So I've added a couple of simple tests of comma formatting at the same time as adding underscore formatting tests. Also, test_long.py currently has a comment "# octal" preceding a bunch of tests of *binary* formatting, and no tests of octal. So I've added those too.In any case, here's a patch with full functionality and tests.
msg274769 -(view)Author: Chris Angelico (Rosuav)*Date: 2016-09-07 06:33
Another couple of tests, per comments.
msg275150 -(view)Author: Brett Cannon (brett.cannon)*(Python committer)Date: 2016-09-08 20:48
Latest patch LGTM. If Georg isn't able to get to issue#26331 then I'll commit to tomorrow. Do you want me to commit yours on your behalf right after, Chris to make sure this hits b1?
msg275151 -(view)Author: Brett Cannon (brett.cannon)*(Python committer)Date: 2016-09-08 20:48
Actually, Chris doesn't have commit privileges so I just will. :)
msg275165 -(view)Author: Chris Angelico (Rosuav)*Date: 2016-09-08 21:28
Thanks Brett! Sounds like a plan.
msg275367 -(view)Author: Eric V. Smith (eric.smith)*(Python committer)Date: 2016-09-09 18:11
Since Brett is working on the parsing part, I'll work on this. I might take a stab at the documentation first, but in any event I'll commit it tonight.
msg275545 -(view)Author: Eric V. Smith (eric.smith)*(Python committer)Date: 2016-09-10 02:28
I just noticed that the patch doesn't handle 'X' (uppercase) correctly, while it does handle 'x' (lowercase). I'll fix that when I commit.
msg275549 -(view)Author: Roundup Robot (python-dev)(Python triager)Date: 2016-09-10 03:07
New changeset99abb731ea7a by Eric V. Smith in branch 'default':Issue 27080:PEP 515: add '_' formatting option.https://hg.python.org/cpython/rev/99abb731ea7a
msg275550 -(view)Author: Eric V. Smith (eric.smith)*(Python committer)Date: 2016-09-10 03:08
I also fixed the code so both '_' and ',' can't be specified, and added tests. The documentation is also updated.
History
DateUserActionArgs
2022-04-11 14:58:31adminsetgithub: 71267
2016-09-10 03:08:14eric.smithsetstatus: open -> closed
resolution: fixed
messages: +msg275550

stage: resolved
2016-09-10 03:07:00python-devsetnosy: +python-dev
messages: +msg275549
2016-09-10 02:28:00eric.smithsetmessages: +msg275545
2016-09-09 18:11:39eric.smithsetassignee:eric.smith
messages: +msg275367
2016-09-08 21:28:39brett.cannonsetpriority: normal -> release blocker
nosy: +ned.deily
2016-09-08 21:28:07Rosuavsetmessages: +msg275165
2016-09-08 20:48:39brett.cannonsetmessages: +msg275151
2016-09-08 20:48:16brett.cannonsetnosy: +brett.cannon
messages: +msg275150
2016-09-07 06:33:49Rosuavsetfiles: +moar-tests.patch

messages: +msg274769
2016-08-19 13:52:32Rosuavsetfiles: +underscores_with_tests.patch

messages: +msg273123
2016-08-19 13:34:11Rosuavsetfiles: +underscores_all_bases.patch

messages: +msg273120
2016-08-19 13:24:12Rosuavsetfiles: +underscores_decimal_only.patch
keywords: +patch
messages: +msg273117
2016-08-19 13:17:06Rosuavsetnosy: +Rosuav
2016-08-19 08:23:18eric.smithsetassignee:eric.smith -> (no value)
messages: +msg273093
versions: + Python 3.6
2016-05-21 20:39:00eric.smithsetnosy: +georg.brandl
2016-05-21 20:38:09eric.smithcreate
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