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Title: Update test_utf8source from v3.14.3 and implement it by youknowone · Pull Request #7318 · RustPython/RustPython · GitHub

Open Graph Title: Update test_utf8source from v3.14.3 and implement it by youknowone · Pull Request #7318 · RustPython/RustPython

X Title: Update test_utf8source from v3.14.3 and implement it by youknowone · Pull Request #7318 · RustPython/RustPython

Description: Summary by CodeRabbit Bug Fixes Improved source-file encoding detection (BOM + PEP 263) and decoding to better match CPython. Stricter UTF-8 validation with clearer, location-aware syntax errors for invalid byte sequences. Prevents ambiguous BOM/mixed-encoding handling and surfaces clearer messages when decoding fails. Compile/preprocessing now consistently uses the improved decoding path for source text. No changes to public APIs or exported declarations.

Open Graph Description: Summary by CodeRabbit Bug Fixes Improved source-file encoding detection (BOM + PEP 263) and decoding to better match CPython. Stricter UTF-8 validation with clearer, location-aware syntax errors ...

X Description: Summary by CodeRabbit Bug Fixes Improved source-file encoding detection (BOM + PEP 263) and decoding to better match CPython. Stricter UTF-8 validation with clearer, location-aware syntax errors ...

Opengraph URL: https://github.com/RustPython/RustPython/pull/7318

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33fca0d Update test_utf8source from v3.14.3 Mar 2, 2026 https://github.com/RustPython/RustPython/pull/7318/commits/33fca0d77b21d749621e46e5ab0b3c1e8d834267
77eade3 Fix PEP 263 encoding detection per review youknowone Mar 2, 2026 https://github.com/RustPython/RustPython/pull/7318/commits/77eade37f1e07b3cbab41862e04f0cb81ef88595
53ddc7e Remove expectedFailure for encoding tests now passing youknowone Mar 3, 2026 https://github.com/RustPython/RustPython/pull/7318/commits/53ddc7ef48865007e0472e3946f5e7a87efa627f
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