gh-86427: Use the console code page for the stdio encoding on Windows - #155415
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serhiy-storchaka wants to merge 1 commit into
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gh-86427: Use the console code page for the stdio encoding on Windows#155415serhiy-storchaka wants to merge 1 commit into
serhiy-storchaka wants to merge 1 commit into
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…indows In the legacy Windows stdio mode PyConfig.stdio_encoding is now initialized with the console output code page instead of the ANSI code page. Only one encoding can be specified, so sys.stdin.encoding is still wrong if the input code page differs from the output one.
serhiy-storchaka
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FFY00 and
ericsnowcurrently
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August 9, 2026 10:50
This was referenced Aug 9, 2026
serhiy-storchaka
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needs backport to 3.13
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PyConfig.stdio_encodingis now initialized with the console output code page in the legacy Windows stdio mode.Only one encoding can be specified for all standard streams, so
sys.stdin.encodingis still wrong if the input code page differs from the output one. This is the minimal fix, suitable for backporting.