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1. Commits on Apr 11, 2026

   • [3.13] gh-145105: Fix crash in csv.reader with re-entrant iterator (GH-145106) (#148405)

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     miss-islington

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     raminfp

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2. Commits on Mar 18, 2026

   • [3.13] gh-146093: Fix csv _set_str(): check if PyUnicode_DecodeASCII() failed (GH-146113) (#146131)

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     miss-islington

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     vstinner

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3. Commits on Aug 24, 2025

   • [3.13] gh-137986: Fix and improve the csv functions docstrings (GH-137987) (GH-138108)

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     serhiy-storchaka

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     maurycy

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4. Commits on Jan 29, 2025

   • [3.13] gh-129409: Fix Integer overflow - SEGV while writing data more than 2GB in CSV file (GH-129413) (#129436)

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     miss-islington

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     srinivasreddy

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5. Commits on Oct 11, 2024

   • [3.13] gh-116738: Make `_csv` module thread-safe (GH-118344) (#125328)

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     miss-islington

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     aisk

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6. Commits on Jul 25, 2024

   • [3.13] gh-113785: csv: fields starting with escapechar are not quoted (GH-122110) (GH-122258)

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     miss-islington

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     MKuranowski

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     6933c4aView commit details

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7. Commits on May 3, 2024

   • gh-116322: Add Py_mod_gil module slot (#116882)

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     swtaarrs

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8. Commits on Mar 7, 2024

   • gh-116437: Use new C API PyDict_Pop() to simplify the code (GH-116438)

     serhiy-storchaka

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9. Commits on Feb 23, 2024

   • gh-67044: Always quote or escape \r and \n in csv.writer() (GH-115741)

     serhiy-storchaka

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10. Commits on Feb 20, 2024

    • gh-115712: Support CSV dialects with delimiter=' ' and skipinitialspace=True (GH-115721)

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      serhiy-storchaka

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11. Commits on Jan 30, 2024

    • gh-113732: Fix support of QUOTE_NOTNULL and QUOTE_STRINGS in csv.reader (GH-113738)

      serhiy-storchaka

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12. Commits on Jan 22, 2024

    • gh-113796: Add more validation checks in the csv.Dialect constructor (GH-113797)

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      serhiy-storchaka

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13. Commits on Jan 18, 2024

    • gh-114123: Migrate docstring from _csv to csv (#114124)

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14. Commits on Jan 10, 2024

    • gh-70835: Clarify error message for CSV file opened with wrong newline (GH-113786)

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      serhiy-storchaka

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15. Commits on Nov 27, 2023

    • gh-111789: Use PyDict_GetItemRef() in Modules/_csv.c (gh-112073)

      serhiy-storchaka

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16. Commits on Oct 17, 2023

    • gh-110964: Remove private _PyArg functions (#110966)

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      vstinner

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17. Commits on Aug 24, 2023

    • gh-108444: Replace _PyLong_AsInt() with PyLong_AsInt() (#108459)

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      vstinner

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18. Commits on Jul 25, 2023

    • gh-106869: Use new PyMemberDef constant names (#106871)

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      vstinner

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19. Commits on Jul 12, 2023

    • gh-106521: Remove _PyObject_LookupAttr() function (GH-106642)

      serhiy-storchaka

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20. Commits on Jun 1, 2023

    • gh-92536: Remove PyUnicode_READY() calls (#105210)

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      vstinner

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21. Commits on May 7, 2023

    • gh-104265 Disallow instantiation of `_csv.Reader` and `_csv.Writer` (#104266)

      chgnrdv

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22. Commits on May 5, 2023

    • gh-99113: Add Py_MOD_PER_INTERPRETER_GIL_SUPPORTED (gh-104205)

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      ericsnowcurrently

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23. Commits on Apr 12, 2023

    • gh-67230: add quoting rules to csv module (GH-29469)

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      smontanaro

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24. Commits on Nov 14, 2022

    • gh-99300: Use Py_NewRef() in Modules/ directory (#99466)

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      vstinner

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25. Commits on Oct 7, 2022

    • gh-65496: Correct wording on csv's skipinitialspace argument (#96170)

      slateny

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26. Commits on May 13, 2022

    • gh-89653: Use int type for Unicode kind (#92704)

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      vstinner

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27. Commits on May 3, 2022

    • gh-91320: Use _PyCFunction_CAST() (#92251)

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      vstinner

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28. Commits on Apr 16, 2022

    • bpo-40676: Use Argument Clinic for csv (where possible) (GH-20200)

      hauntsaninja

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29. Commits on Feb 28, 2022

    • bpo-46541: Remove unnecessary Py_VISIT (GH-31608)

      corona10

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30. Commits on Feb 16, 2022

    • bpo-46541: Remove usage of _Py_IDENTIFIER from csv module (GH-31372)

      corona10

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31. Commits on Feb 11, 2022

    • bpo-46613: Add PyType_GetModuleByDef to the public API (GH-31081)

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      encukou

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      vstinner

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      2049469View commit details

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32. Commits on Feb 8, 2022

    • bpo-46541: Replace core use of _Py_IDENTIFIER() with statically initialized global objects. (gh-30928)

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      ericsnowcurrently

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      81c7204View commit details

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33. Commits on Oct 11, 2021

    • bpo-20028: Empty escapechar/quotechar is not allowed for csv.Dialect (GH-28833)

      corona10

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34. Commits on Oct 9, 2021

    • bpo-27580: Add support of null characters in the csv module. (GH-28808)

      serhiy-storchaka

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    • bpo-20028: Keep original exception when PyUnicode_GetLength return -1 (GH-28832)

      corona10

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