python / python/cpython

CField.size from the ctypes module does not behave as documented on bitfields

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docs topic-ctypes type-bug
Dominant language
Python
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Description

BPO 37187
Nosy @amauryfa, @abalkin, @meadori, @mangrisano, @shihai1991
PRs
  • python/cpython#14647
  • 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 2019-06-07.03:46:36.822>
    labels = ['ctypes', 'type-bug', 'docs']
    title = 'CField.size from the ctypes module does not behave as documented on bitfields'
    updated_at = <Date 2019-07-08.17:32:40.963>
    user = 'https://bugs.python.org/EricWieser'
    

    bugs.python.org fields:

    activity = <Date 2019-07-08.17:32:40.963>
    actor = 'shihai1991'
    assignee = 'docs@python'
    closed = False
    closed_date = None
    closer = None
    components = ['Documentation', 'ctypes']
    creation = <Date 2019-06-07.03:46:36.822>
    creator = 'Eric Wieser'
    dependencies = []
    files = []
    hgrepos = []
    issue_num = 37187
    keywords = ['patch']
    message_count = 2.0
    messages = ['344895', '344921']
    nosy_count = 7.0
    nosy_names = ['amaury.forgeotdarc', 'belopolsky', 'meador.inge', 'docs@python', 'Eric Wieser', 'mangrisano', 'shihai1991']
    pr_nums = ['14647']
    priority = 'normal'
    resolution = None
    stage = 'patch review'
    status = 'open'
    superseder = None
    type = 'behavior'
    url = 'https://bugs.python.org/issue37187'
    versions = []
    

    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 the ctypes module documentation and review PR #14647, the only implementation reference named in the issue. Compare CField.size's documented behavior on bitfields with its current behavior; done means the documentation and behavior agree.

    Written by the indexing model from the issue text.

    Assessment

    Tech stack
    python
    Domain
    documentation
    Issue type
    Bug
    Difficulty
    3/5
    Estimated time
    1-2 days
    Activity status
    Stale
    Clarity
    Mostly clear
    Newbie friendliness
    20/100

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