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gh-145261, gh-106939: multiprocessing.shared_memory: fix ShareableList corruption for multi-byte strings and null bytes #145266

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gh-145261, gh-106939: multiprocessing.shared_memory: fix ShareableList corruption for multi-byte strings and null bytes #145266

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6261c86
gh-145261: Fix ShareableList corruption for multi-byte strings and by…
stefanzetzsche Feb 26, 2026
34003c6
📜🤖 Added by blurb_it.
blurb-it[bot] Feb 26, 2026
3f874bc
docs: Update ShareableList documentation for fixed trailing null bug
stefanzetzsche Feb 27, 2026
254230f
fix: Also preserve trailing nulls in strings, not just bytes
stefanzetzsche Feb 27, 2026
2c0935c
test: Update ShareableList tests to reflect actual byte lengths
stefanzetzsche Feb 27, 2026
eb4ce8a
docs: Update ShareableList documentation to reflect trailing null pre…
stefanzetzsche Feb 27, 2026
e3b5fd3
Merge remote-tracking branch 'origin/main' into fix/multiprocessing_s…
stefanzetzsche Mar 11, 2026
feba9b5
test: Add tests for trailing null preservation and multi-byte UTF-8 i…
stefanzetzsche Mar 11, 2026
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📜🤖 Added by blurb_it.
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@blurb-it
blurb-it[bot] authored Feb 26, 2026
commit 34003c6f3317c199972eed5a1950158080f8314a
4 changes: 4 additions & 0 deletions Misc/NEWS.d/next/Library/2026-02-26-17-41-14.gh-issue-145261.Wce9Dh.rst
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Fix :class:`~multiprocessing.shared_memory.ShareableList` corrupting
multi-byte UTF-8 strings due to using character count instead of byte count
for slot allocation, and stripping legitimate trailing null bytes from
``bytes`` values.
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