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Repl syntax highlighting fails in pattern matching when the previous case spans across multiple lines #136801

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Repl syntax highlighting fails in pattern matching when the previous case spans across multiple lines#136801
Labels
stdlibStandard Library Python modules in the Lib/ directorytopic-replRelated to the interactive shelltype-bugAn unexpected behavior, bug, or error

Description

@olgarithms
olgarithms
opened on Jul 19, 2025

Bug report

Bug description:

There is a bug in the new repl syntax highlighting when using pattern matching with cases spawning across new lines.

To reproduce:

def status(code):
    match code:
        case 0: return "OK"  # correct highlight
        case -1:                      # correct highlight
            return "Error"
        case -2:                     # no highlight
            return "Big Error"
        case _:                       # no highlight
            return "Unknown status"

CPython versions tested on:

CPython main branch

Operating systems tested on:

macOS

Linked PRs

Activity

  1. olgarithms
    added
    type-bugAn unexpected behavior, bug, or error
    on Jul 19, 2025

  2. olgarithms commented on Jul 19, 2025

    @olgarithms
    olgarithms
    on Jul 19, 2025
    ContributorAuthor

    Working on a PR.

  3. olgarithms
    added a commit that references this issue on Jul 19, 2025

    pythongh-136801: Fix reply syntax highlightning on cases after multi-…

    ebe9a9c
  4. picnixz
    added
    stdlibStandard Library Python modules in the Lib/ directory
    topic-replRelated to the interactive shell
    on Jul 19, 2025

  5. picnixz commented on Jul 19, 2025

    @picnixz
    picnixz
    on Jul 19, 2025
    Member

    Can you show a screenshot please as well with before/after?

  6. olgarithms commented on Jul 19, 2025

    @olgarithms
    olgarithms
    on Jul 19, 2025
    ContributorAuthor

    Yes!

    Before:

    Image

    After:

    Image
  7. ambv
    added a commit that references this issue on Jul 19, 2025

    gh-136801: Fix PyREPL syntax highlightning on match cases after multi…

    3a64844
  8. miss-islington
    added a commit that references this issue on Jul 19, 2025

    pythongh-136801: Fix PyREPL syntax highlightning on match cases after…

    b7aac69
  9. ambv
    added a commit that references this issue on Jul 19, 2025

    [3.14] gh-136801: Fix PyREPL syntax highlightning on match cases afte…

    2a9aeb0

  10. ambv commented on Jul 19, 2025

    @ambv
    ambv
    on Jul 19, 2025
    Contributor

    Thanks, Olga! ✨ 🍰 ✨

  11. ambv
    closed this as completedon Jul 19, 2025
  12. taegyunkim
    added a commit that references this issue on Aug 4, 2025

    pythongh-136801: Fix PyREPL syntax highlightning on match cases after…

    b7414e3
  13. Agent-Hellboy
    added a commit that references this issue on Aug 19, 2025

    pythongh-136801: Fix PyREPL syntax highlightning on match cases after…

    52c8927
  14. kumaraditya303
    added a commit that references this issue on Sep 9, 2025

    [3.14] pythongh-136801: Fix PyREPL syntax highlightning on match case…

    9589f33
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    stdlibStandard Library Python modules in the Lib/ directorytopic-replRelated to the interactive shelltype-bugAn unexpected behavior, bug, or error

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