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GeezerVison is showing github.com — [3.14] gh-132631: Fix "I/O operation on closed file" when parsing JSON Lines file (GH-132632) by miss-islington · Pull Request #148921 · python/cpython

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@miss-islington

@miss-islington miss-islington commented Apr 23, 2026 •
edited by bedevere-app Bot
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(cherry picked from commit 42d645a)

Co-authored-by: Hugo van Kemenade [email protected]
Co-authored-by: Brian Schubert [email protected]

  • Issue: JSON CLI: I/O operation on closed file" when parsing JSON Lines file #132631

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@hugovk @brianschubert @miss-islington
pythongh-132631: Fix "I/O operation on closed file" when parsing JSON…
51b976d 
… Lines file (pythonGH-132632)

(cherry picked from commit 42d645a)

Co-authored-by: Hugo van Kemenade <[email protected]>
Co-authored-by: Brian Schubert <[email protected]>
@bedevere-app bedevere-app Bot mentioned this pull request Apr 23, 2026
gh-132631: Fix "I/O operation on closed file" when parsing JSON Lines file #132632
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@bedevere-app bedevere-app Bot added the awaiting review label Apr 23, 2026
@bedevere-app bedevere-app Bot mentioned this pull request Apr 23, 2026
JSON CLI: I/O operation on closed file" when parsing JSON Lines file #132631
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@hugovk

hugovk commented Apr 23, 2026

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@StanFromIreland The fuzzer is failing, what do we need to do?

BAD BUILD: /tmp/not-out/tmpp_w4bm86/fuzzer-binascii seems to have either startup crash or exit:
sysctl: setting key "vm.mmap_rnd_bits", ignoring: Read-only file system
/tmp/not-out/tmpp_w4bm86/fuzzer-binascii -- -rss_limit_mb=2560 -timeout=25 -seed=1337 -runs=4 < /dev/null
Traceback (most recent call last):
  File "<string>", line 1, in <module>
ModuleNotFoundError: No module named 'fuzzeddataprovider'
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@StanFromIreland

StanFromIreland commented Apr 23, 2026

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Pinging me was a good start ;-)

I know the reason straight away.
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@StanFromIreland StanFromIreland mentioned this pull request Apr 23, 2026
Revert "Add fuzzer for binascii module" python/library-fuzzers#51
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@StanFromIreland

StanFromIreland commented Apr 23, 2026

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I wrote python/library-fuzzers#51 to revert the addition of the broken fuzzer while we wait on the OSS-Fuzz team to merge my fix.
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@hugovk

hugovk commented Apr 23, 2026

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Thank you!
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@hugovk
hugovk merged commit 31ba91a into python:3.14 Apr 23, 2026
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@bedevere-app bedevere-app Bot removed the awaiting review label Apr 23, 2026
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@miss-islington @hugovk @StanFromIreland
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