GeezerVison

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1. Commits on Oct 25, 2026

   • gh-152631: Fix `ast.parse` on lazy imports with older `feature_version` (#152632)

     sobolevn

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   • gh-153568: Use a managed dict for AST nodes (#160616)

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     lysnikolaou

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2. Commits on Oct 23, 2026

   • gh-160491: Fix location of invalid escapes in f-strings and t-strings (#160493)

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     lysnikolaou

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   • gh-153568: Skip the expression precedence chain for single-token atoms (#153575)

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     pablogsal

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     lysnikolaou

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   • gh-159465: Preserve escape errors in unfinished f-strings and t-strings (#159669)

     pablogsal

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   • gh-153195: Allow splitting the PEG grammar into several files (#159917)

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     lysnikolaou

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3. Commits on Oct 22, 2026

   • gh-160284: Number each keyword once in the PEG generator (#160290)

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     lysnikolaou

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   • gh-160245: Reduce padding in the Memo struct in the parser (#160266)

     ashm-dev

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   • gh-160268: Fix tokenize on a mismatched closing bracket in an f-string (#160272)

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     lysnikolaou

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4. Commits on Oct 20, 2026

   • gh-159739: Preserve the syntax error if metadata allocation fails (#159751)

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     jelle-openai

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5. Commits on Oct 18, 2026

   • gh-159465: Improve incomplete input detection (#159466)

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     pablogsal

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6. Commits on Oct 13, 2026

   • gh-153569: Simplify tokenizer source views and reader ownership (#158849)

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     pablogsal

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7. Commits on Oct 5, 2026

   • gh-153569: Simplify tokenizer state (#158124)

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     pablogsal

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8. Commits on Sep 28, 2026

   • gh-158309: Set MemoryError when allocation fails in `decode_unicode_with_escapes()` (#158311)

     lpyu001

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9. Commits on Sep 25, 2026

   • gh-151464: exclude '<>' token from tokenize output (#154854)

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     skirpichev

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10. Commits on Sep 24, 2026

    • gh-153569: consolidate tokenizer input, layout, and diagnostics (#157055)

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      pablogsal

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    • gh-157407: Fix a compilation error on Windows. (#158048)

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      methane

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    • gh-152708: Fix AST generation asymmetry for unary positive in match statements (#152712)

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    • gh-157778: Include opening brace line in multiline f-string errors (#157779)

      pablogsal

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11. Commits on Sep 23, 2026

    • gh-157407: Reduce code size of ast and unicodeobject (#157393)

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      methane

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      eendebakpt

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12. Commits on Sep 17, 2026

    • gh-155742: Use PyMem_Malloc() in decode_unicode_with_escapes() (#157587)

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      vstinner

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13. Commits on Sep 16, 2026

    • gh-153568: Reduce parser allocations (#157374)

      pablogsal

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14. Commits on Sep 15, 2026

    • gh-156909: Fix `AST.__repr__` call getting the `_fields` attribute (GH-157490)

      johnslavik

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    • gh-153568: Reuse shared prefixes in generated parser rules (#157465)

      pablogsal

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15. Commits on Sep 14, 2026

    • gh-153568: Don't materialize parser token text that is never read (#153576)

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      pablogsal

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      maurycy

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    • gh-153568: Share expression parsing with assignment targets (#157450)

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      pablogsal

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    • gh-153568: Skip newline translation for source without carriage returns (#153584)

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      pablogsal

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    • gh-153568: Make the parser's per-rule stack check an inline comparison (#153573)

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      pablogsal

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    • gh-153568: Stop re-walking memo lists when growing left-recursive rules (#153574)

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      pablogsal

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    • gh-157378: Fix SyntaxError.offset for "Non-UTF-8 code" error (#157412)

      ashm-dev

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    • gh-156021: Don't include `...` for empty AST node representations (GH-156022)

      johnslavik

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16. Commits on Sep 13, 2026

    • gh-154719: Preserve trailing whitespace in t-string interpolation expressions (#154762)

      lpyu001

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      1a703abView commit details

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17. Commits on Sep 12, 2026

    • gh-153569: hide tokenizer state behind token and source operations (#156654)

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      pablogsal

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18. Commits on Sep 8, 2026

    • gh-153569: centralize formatted-string state and source spans (#156484)

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      pablogsal

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19. Commits on Sep 6, 2026

    • gh-153569: return token spans and unify decoded source storage (#156482)

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      pablogsal

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