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[3.14] gh-159739: Respect readline limits after a short read (GH-159974) - #160483
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…ythonGH-159974) Backport to 3.15 and 3.14. Both branches use a bytearray instead of PyBytesWriter; the test lives in Lib/test/test_io.py on 3.14. (cherry picked from commit 87eaef1) Co-authored-by: Jelle Zijlstra <jelle@openai.com>
This was referenced Oct 23, 2026
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October 23, 2026 20:34
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Backport to 3.15 and 3.14. Both branches use a bytearray instead of PyBytesWriter; the test lives in Lib/test/test_io.py on 3.14.
(cherry picked from commit 87eaef1)
Co-authored-by: Jelle Zijlstra jelle@openai.com
Backport of #159974 to 3.14.
Use the size of 3.14's bytearray to compute how many bytes remain. Move the short-read regression into Lib/test/test_io.py.
Ran test_io on a free-threaded 3.14 build, including the C and Python short-read regression.