gh-143602: Fix duplicate buffer exports in io.BytesIO.write #143629
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Fix a inconsistency issue in io.BytesIO.write() where the buffer was exported twice, which could lead to unexpected data overwrites and position drift when the buffer changes between exports.
vstinner
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Jan 12, 2026
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vstinner
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LGTM. The NEWS entry can be enhanced, but I cannot propose a better description.
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Fix a inconsistency issue in io.BytesIO.write() where the buffer was exported twice, which could lead to unexpected data overwrites and position drift when the buffer changes between exports.