"universal newlines" subprocess support broken with select- and poll-based communicate()

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
20/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
python
Domain
operating-systems, testing-qa

Research direction

Start by reviewing issue12623_failing_test.diff and the select- and poll-based communicate() behavior described in the issue. Check superseding issue bpo-16903 before investigating further, since this issue has no linked pull request and its historical patch may be out of date. Done would require a current reproducer and passing subprocess tests for universal newlines.

Written by the indexing model from the issue text.

Description

stdlib tests topic-subprocess type-bug
BPO 12623
Nosy @birkenfeld, @gpshead, @pitrou, @bitdancer, @asvetlov, @cjerdonek, @vadmium
Superseder
  • bpo-16903: subprocess.Popen.communicate with universal_newlines=True doesn't accept strings on 3.2
    		•
    Files
  • issue12623_failing_test.diff
    		•

    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 = None
closed_at = None
created_at = <Date 2011-07-23.20:11:32.674>
labels = ['tests', 'type-bug', 'library']
title = '"universal newlines" subprocess support broken with select- and poll-based communicate()'
updated_at = <Date 2016-06-12.20:34:36.463>
user = 'https://github.com/pitrou'

    bugs.python.org fields:

    activity = <Date 2016-06-12.20:34:36.463>
actor = 'BreamoreBoy'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)', 'Tests']
creation = <Date 2011-07-23.20:11:32.674>
creator = 'pitrou'
dependencies = []
files = ['26837']
hgrepos = []
issue_num = 12623
keywords = ['patch']
message_count = 17.0
messages = ['141014', '168317', '168320', '168322', '168325', '168328', '168329', '168330', '168331', '168333', '168335', '168336', '168340', '168557', '169046', '220743', '268346']
nosy_count = 7.0
nosy_names = ['georg.brandl', 'gregory.p.smith', 'pitrou', 'r.david.murray', 'asvetlov', 'chris.jerdonek', 'martin.panter']
pr_nums = []
priority = 'normal'
resolution = 'out of date'
stage = 'patch review'
status = 'open'
superseder = '16903'
type = 'behavior'
url = 'https://bugs.python.org/issue12623'
versions = ['Python 3.4', 'Python 3.5']

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