python / python/cpython

unsynchronized write pointer in io.TextIOWrapper in 'r+' mode

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stdlib topic-IO type-bug
Dominant language
Python
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Description

BPO 38710
Nosy @vadmium, @MojoVampire
Superseder
  • bpo-12215: TextIOWrapper: issues with interlaced read-write
  • 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 2019-11-06.04:04:15.160>
    labels = ['3.7', 'type-bug', 'library', 'expert-IO']
    title = "unsynchronized write pointer in io.TextIOWrapper in 'r+' mode"
    updated_at = <Date 2019-11-17.23:20:53.209>
    user = 'https://bugs.python.org/ManuelIgnacioPrezAlcolea'
    

    bugs.python.org fields:

    activity = <Date 2019-11-17.23:20:53.209>
    actor = 'martin.panter'
    assignee = 'none'
    closed = False
    closed_date = None
    closer = None
    components = ['Library (Lib)', 'IO']
    creation = <Date 2019-11-06.04:04:15.160>
    creator = 'Manuel Ignacio P\xc3\xa9rez Alcolea'
    dependencies = []
    files = []
    hgrepos = []
    issue_num = 38710
    keywords = []
    message_count = 2.0
    messages = ['356089', '356835']
    nosy_count = 3.0
    nosy_names = ['martin.panter', 'josh.r', 'Manuel Ignacio P\xc3\xa9rez Alcolea']
    pr_nums = []
    priority = 'normal'
    resolution = None
    stage = None
    status = 'open'
    superseder = '12215'
    type = 'behavior'
    url = 'https://bugs.python.org/issue38710'
    versions = ['Python 3.7']
    

    Contributor guide

    Open the contributing guide

    First steps

    1. Read the whole issue, then the project's contributing guide.
    2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
    3. Fork the repository and make your change on a branch.
    4. Open a pull request that references the issue number.

    Research direction

    Start with io.TextIOWrapper and the migrated BPO record for issue 38710. Check superseding issue 12215 before doing work; this issue names no files, tests, reproduction steps, or linked pull request, so its completion criteria are not specified here.

    Written by the indexing model from the issue text.

    Assessment

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

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