python / python/cpython

`catch_warnings` context manager causes all warnings to be printed every time, even after exiting

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stdlib type-bug
Dominant language
Python
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Description

BPO 29672
Nosy @pitrou, @gerritholl, @embray, @serhiy-storchaka, @segevfiner
PRs
  • python/cpython#8232
  • 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 2017-02-27.22:29:56.490>
    labels = ['type-bug', 'library']
    title = '`catch_warnings` context manager causes all warnings to be printed every time, even after exiting'
    updated_at = <Date 2021-04-02.21:55:37.433>
    user = 'https://github.com/gerritholl'
    

    bugs.python.org fields:

    activity = <Date 2021-04-02.21:55:37.433>
    actor = 'taldcroft'
    assignee = 'none'
    closed = False
    closed_date = None
    closer = None
    components = ['Library (Lib)']
    creation = <Date 2017-02-27.22:29:56.490>
    creator = 'Gerrit.Holl'
    dependencies = []
    files = []
    hgrepos = []
    issue_num = 29672
    keywords = ['patch']
    message_count = 10.0
    messages = ['288677', '288678', '288680', '288709', '298588', '298822', '320662', '321380', '321393', '390103']
    nosy_count = 6.0
    nosy_names = ['pitrou', 'Gerrit.Holl', 'erik.bray', 'serhiy.storchaka', 'Segev Finer', 'taldcroft']
    pr_nums = ['8232']
    priority = 'normal'
    resolution = None
    stage = 'patch review'
    status = 'open'
    superseder = None
    type = 'behavior'
    url = 'https://bugs.python.org/issue29672'
    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 by reading the linked pull request python/cpython#8232 and reproducing the catch_warnings behavior described in the issue. Done means warnings are not printed repeatedly after the context manager exits, with regression coverage for that behavior.

    Written by the indexing model from the issue text.

    Assessment

    Tech stack
    python
    Domain
    backend
    Issue type
    Bug
    Difficulty
    3/5
    Estimated time
    1-2 days
    Activity status
    Stale
    Clarity
    Needs clarification
    Newbie friendliness
    25/100

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