wsgiref.util FileWrapper raises ValueError: I/O operation on closed file.

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
python
Domain
backend

Research direction

Start with the attached wsgitest.py, which demonstrates the failure, and inspect the wsgiref.util.FileWrapper entry point. Reproduce the ValueError involving a closed file, then determine the expected behavior and add coverage for it. Done means the demonstrated case no longer raises unexpectedly and the relevant regression test passes.

Written by the indexing model from the issue text.

Description

stdlib type-bug
BPO 26299
Nosy @pjeby
Files
  • wsgitest.py: demonstrates the issue
  • 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 2016-02-05.18:40:05.816>
    labels = ['library']
    title = 'wsgiref.util FileWrapper raises ValueError: I/O operation on closed file.'
    updated_at = <Date 2016-02-07.11:21:48.517>
    user = 'https://bugs.python.org/samwyse'
    

    bugs.python.org fields:

    activity = <Date 2016-02-07.11:21:48.517>
    actor = 'SilentGhost'
    assignee = 'none'
    closed = False
    closed_date = None
    closer = None
    components = ['Library (Lib)']
    creation = <Date 2016-02-05.18:40:05.816>
    creator = 'samwyse'
    dependencies = []
    files = ['41828']
    hgrepos = []
    issue_num = 26299
    keywords = []
    message_count = 1.0
    messages = ['259685']
    nosy_count = 2.0
    nosy_names = ['pje', 'samwyse']
    pr_nums = []
    priority = 'normal'
    resolution = None
    stage = None
    status = 'open'
    superseder = None
    type = None
    url = 'https://bugs.python.org/issue26299'
    versions = ['Python 2.7', 'Python 3.6']
    

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