subprocess.Popen.communicate causing local tty terminal settings to change inconsistently

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
30/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
python

Research direction

Start by running the uploaded reproducer a.py and observing the local tty settings before and after subprocess.Popen.communicate. Read the communicate behavior in Python 2.7's subprocess implementation; done means the reproducer no longer causes terminal settings to change inconsistently.

Written by the indexing model from the issue text.

Description

stdlib topic-subprocess type-bug
BPO 22662
Nosy @vadmium
Files
  • a.py
  • Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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    GitHub fields:

    assignee = None
    closed_at = None
    created_at = <Date 2014-10-17.20:44:33.816>
    labels = ['type-bug']
    title = 'subprocess.Popen.communicate causing local tty terminal settings to change inconsistently'
    updated_at = <Date 2015-12-29.17:25:31.684>
    user = 'https://bugs.python.org/kflavin'
    

    bugs.python.org fields:

    activity = <Date 2015-12-29.17:25:31.684>
    actor = 'JanSpurny'
    assignee = 'none'
    closed = False
    closed_date = None
    closer = None
    components = []
    creation = <Date 2014-10-17.20:44:33.816>
    creator = 'kflavin'
    dependencies = []
    files = ['41447']
    hgrepos = []
    issue_num = 22662
    keywords = []
    message_count = 4.0
    messages = ['229602', '233872', '257199', '257200']
    nosy_count = 3.0
    nosy_names = ['martin.panter', 'kflavin', 'JanSpurny']
    pr_nums = []
    priority = 'normal'
    resolution = None
    stage = None
    status = 'open'
    superseder = None
    type = 'behavior'
    url = 'https://bugs.python.org/issue22662'
    versions = ['Python 2.7']
    

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