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1. Commits on Sep 25, 2026

   • gh-157127: Reword the argparse mutually exclusive group error message (#157134)

     lazerg

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2. Commits on Aug 7, 2026

   • gh-153967: handle invalid file object in argparse._print_message (#153969)

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     4 peopleauthored
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3. Commits on Aug 5, 2026

   • gh-155043: Support copy.replace() for argparse.Namespace (#155049)

     serhiy-storchaka

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   • GH-155009: Preserve argparse prog for programmatic module-as-main execution (#155199)

     savannahostrowski

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4. Commits on Jul 30, 2026

   • GH-148468: Accept string-like proxy objects in colorized argparse help (#154653)

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     3 peopleauthored
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5. Commits on Jul 24, 2026

   • GH-154638: Use lazy imports in argparse (#154639)

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     savannahostrowski

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     blurb-it[bot]

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   • GH-142035: Fix wrapping of colorized argparse help text (#154634)

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6. Commits on May 11, 2026

   • gh-149614 - Restore deepcopiability of argparse.ArgumentParser instances (#149617)

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     3 peopleauthored
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7. Commits on May 6, 2026

   • gh-148823: Avoid importing `_colorize` when creating an `ArgumentParser` (#148827)

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8. Commits on May 4, 2026

   • gh-142389: Add support for backtick colorisation in argparse help text (#149375)

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     hugovk

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     savannahostrowski

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   • GH-130750: Restore quoting of choices in argparse error messages to match documentation and improve clarity (#144983)

     savannahostrowski

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9. Commits on Mar 18, 2026

   • gh-66419: Make optional arguments with nargs=REMAINDER consume all arguments (GH-124509)

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     serhiy-storchaka

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10. Commits on Feb 17, 2026

    • gh-144782: Make sure that ArgumentParser instances are pickleable (#144783)

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      4 peopleauthored
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11. Commits on Jan 7, 2026

    • GH-142950: Process format specifiers before colourization in argparse help (#142960)

      savannahostrowski

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12. Commits on Dec 12, 2025

    • GH-142389: Add backtick markup support in description and epilog (#142390)

      savannahostrowski

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    • gh-141939: Add colors to interpolated values in argparse (#141940)

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13. Commits on Dec 9, 2025

    • gh-112527: Fix help text for required options in argparse (GH-112528)

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      henzef

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14. Commits on Dec 8, 2025

    • gh-139946: distinguish stdout or stderr when colorizing output in argparse (#140495)

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15. Commits on Dec 7, 2025

    • GH-139862: Fix direct instantiation of `HelpFormatter` (#142384)

      savannahostrowski

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    • gh-142346: Fix usage formatting for mutually exclusive groups in argparse (GH-142381)

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      serhiy-storchaka

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16. Commits on Dec 6, 2025

    • GH-64532: Include parent's required optional arguments in subparser usage (#142355)

      savannahostrowski

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    • gh-142332: Fix usage formatting for positional arguments in mutually exclusive groups in argparse (GH-142333)

      serhiy-storchaka

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    • GH-75949: Fix argparse dropping '|' in mutually exclusive groups on line wrap (#142312)

      savannahostrowski

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17. Commits on Dec 5, 2025

    • GH-142267: Cache formatter to avoid repeated `_set_color` calls (#142268)

      savannahostrowski

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    • GH-139862: Remove `color` from HelpFormatter (#142274)

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      savannahostrowski

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      hugovk

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18. Commits on Nov 23, 2025

    • gh-141679: Add colour to defaults in `argparse` help (#141680)

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      hugovk

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      savannahostrowski

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19. Commits on Nov 22, 2025

    • gh-138525: Support single-dash long options and prefix_chars in BooleanOptionalAction (GH-138692)

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      serhiy-storchaka

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20. Commits on Nov 20, 2025

    • gh-138697: Fix inferring dest from a single-dash long option in argparse (#138699)

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      serhiy-storchaka

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      savannahostrowski

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21. Commits on Nov 4, 2025

    • GH-139946: Colorize error and warning messages in argparse (#140695)

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      savannahostrowski

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      hugovk

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22. Commits on Oct 22, 2025

    • gh-140448: Default `suggest_on_error` to `True` in `argparse.ArgumentParser` (#140450)

      HomerusJa

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23. Commits on Oct 9, 2025

    • GH-139809: Fix argparse subcommand prog not respecting color environment variables (#139818)

      savannahostrowski

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24. Commits on Oct 8, 2025

    • gh-139736: Fix argparse indentation overshoot (#139738)

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      9001

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      savannahostrowski

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      72e370cView commit details

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25. Commits on Sep 29, 2025

    • gh-76007: Deprecate `__version__` attribute (#138675)

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      3 peopleauthored
      872eafdView commit details

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26. Commits on Jul 20, 2025

    • GH-130645: Default to color help in argparse (#136809)

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      4 peopleauthored
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27. Commits on Jun 1, 2025

    • gh-134970: Fix exception message in argparse module (GH-134971)

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      mgorny

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      965c480View commit details

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