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1. Commits on May 4, 2026

   • Tighten CPython parity for str format spec, %-format, and str() constructor (#7769)

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   • Validate compile() filename type and dont_inherit __bool__ protocol (#7768)

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   • Match CPython wording for compile() optimize and flags validation (#7765)

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   • Drop redundant exception type prefix from float-to-int error messages (#7763)

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2. Commits on May 2, 2026

   • Round float at the decimal level to match CPython's _Py_dg_dtoa (#7761)

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3. Commits on May 1, 2026

   • Apply titlecase mapping in str.title() for uppercase digraphs (#7748)

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   • Match CPython's _float_div_mod, fixing divmod and `%` zero-handling (#7745)

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   • Raise OverflowError in float pow when finite-base result overflows (#7746)

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   • Resolve PathLike via os.fspath in io.open (#7743)

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4. Commits on Apr 29, 2026

   • Short-circuit identity in rich_compare_bool for Eq/Ne (PyObject_RichCompareBool parity) (#7734)

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   • Chain __context__ alongside __cause__ when wrapping StopIteration (PEP 479) (#7731)

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   • Match CPython's "argument of type ... is not a container or iterable" wording (#7714)

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   • Accept __index__-conforming objects for compile() flags / optimize (#7728)

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   • Make mappingproxy's nb_or slot symmetric for dict | mp (#7723)

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   • Preserve recursively-set value in defaultdict.__missing__ (#7718)

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5. Commits on Apr 28, 2026

   • Reject format-string field index above Py_ssize_t::MAX (#7708)

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   • Reject format spec with width above i32::MAX (#7707)

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   • Drop int() delegation to __trunc__ (#7703)

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   • Preserve str subclass type returned by __str__ / __repr__ (#7701)

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   • Reject __abc_tpflags__ with both SEQUENCE and MAPPING bits (#7700)

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6. Commits on Apr 27, 2026

   • Preserve __dict__ and __slots__ state in deque.__reduce__ (#7699)

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   • Enforce int_max_str_digits on int-to-str conversions (#7688)

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   • Match CPython wording for __slots__ conflict and __doc__ delete errors (#7698)

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   • Defer staticmethod/classmethod callable storage to __init__ (#7697)

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7. Commits on Apr 26, 2026

   • Report invalid \uXXXX escape position at the u character (#7676)

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   • Match CPython error type for non-ASCII struct format arguments (#7681)

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8. Commits on Apr 25, 2026

   • Raise ValueError for None in required AST scalar fields (#7680)

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9. Commits on Apr 24, 2026

   • Accept surrogates in _json.JsonScanner decode path (#7675)

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   • Accept surrogates in _json.encode_basestring{,_ascii} (#7673)

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   • Unmask test_strftime_special and test_zones in datetimetester (#7671)

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   • Raise ValueError for None in Stmt lists to match CPython validator (#7670)

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   • Fix ShellCheck findings in lib-deps-check and update-doc-db workflows (#7669)

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10. Commits on Apr 23, 2026

    • Raise ValueError for None in Expr lists to match CPython validator (#7656)

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      ShaharNaveh

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    • Fix process abort on large float format precision (#7633)

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11. Commits on Apr 20, 2026

    • Fix complex repr to use scientific notation for large integer-valued components (#7634)

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