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gh-132631: Fix "I/O operation on closed file" when parsing JSON Lines file by hugovk · Pull Request #132632 · python/cpython · GitHub

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gh-132631: Fix "I/O operation on closed file" when parsing JSON Lines file - #132632

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hugovk merged 8 commits into
python:mainfrom
hugovk:3.14-fix-jsonlines
Apr 23, 2026
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gh-132631: Fix "I/O operation on closed file" when parsing JSON Lines file#132632
hugovk merged 8 commits into
python:mainfrom
hugovk:3.14-fix-jsonlines

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hugovk commented Apr 17, 2025 •
edited by bedevere-app Bot
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Member 
❯ cat input.jsonl
{"ingredients":["frog", "water", "chocolate", "glucose"]}
{"ingredients":["chocolate","steel bolts"]}

Before

❯ ./python.exe -m json --json-lines input.jsonl
I/O operation on closed file.

After

❯ ./python.exe -m json --json-lines input.jsonl
{
    "ingredients": [
        "frog",
        "water",
        "chocolate",
        "glucose"
    ]
}
{
    "ingredients": [
        "chocolate",
        "steel bolts"
    ]
}

hugovk added the needs backport to 3.13 bugs and security fixes label Apr 17, 2025
hugovk changed the title Fix "I/O operation on closed file" when parsing JSON Lines file gh-132631: Fix "I/O operation on closed file" when parsing JSON Lines file Apr 17, 2025
bedevere-app Bot mentioned this pull request Apr 17, 2025
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zware reviewed Apr 17, 2025
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Comment thread Lib/json/tool.py Outdated

python-cla-bot Bot commented Apr 18, 2025 •
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All commit authors signed the Contributor License Agreement.

Link to docs
dbe2895 
Co-authored-by: Brian Schubert <brianm.schubert@gmail.com>
serhiy-storchaka added the needs backport to 3.14 bugs and security fixes label May 8, 2025
hugovk mentioned this pull request Sep 16, 2025
Closed

github-actions Bot commented Apr 23, 2026

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This PR is stale because it has been open for 30 days with no activity.

github-actions Bot added the stale Stale PR or inactive for long period of time. label Apr 23, 2026
zware removed the stale Stale PR or inactive for long period of time. label Apr 23, 2026
hugovk enabled auto-merge (squash) April 23, 2026 14:56
hugovk merged commit 42d645a into python:main Apr 23, 2026
53 of 54 checks passed
hugovk deleted the 3.14-fix-jsonlines branch April 23, 2026 15:27

miss-islington-app Bot commented Apr 23, 2026

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Thanks @hugovk for the PR 🌮🎉.. I'm working now to backport this PR to: 3.13, 3.14.
🐍🍒⛏🤖

bedevere-app Bot commented Apr 23, 2026

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GH-148921 is a backport of this pull request to the 3.14 branch.

bedevere-app Bot removed the needs backport to 3.14 bugs and security fixes label Apr 23, 2026

bedevere-app Bot commented Apr 23, 2026

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GH-148922 is a backport of this pull request to the 3.13 branch.

bedevere-app Bot removed the needs backport to 3.13 bugs and security fixes label Apr 23, 2026
hugovk added a commit that referenced this pull request Apr 23, 2026
[3.14] gh-132631: Fix "I/O operation on closed file" when parsing JSO…
31ba91a 
…N Lines file (GH-132632) (#148921)

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Co-authored-by: Brian Schubert <brianm.schubert@gmail.com>
hugovk added a commit that referenced this pull request Apr 23, 2026
[3.13] gh-132631: Fix "I/O operation on closed file" when parsing JSO…
e4ae72a 
…N Lines file (GH-132632) (#148922)

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Co-authored-by: Brian Schubert <brianm.schubert@gmail.com>
ljfp pushed a commit to ljfp/cpython that referenced this pull request Apr 25, 2026
pythongh-132631: Fix "I/O operation on closed file" when parsing JSON…
a17f00e 
… Lines file (python#132632)

Co-authored-by: Brian Schubert <brianm.schubert@gmail.com>
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