Skip to content

incorrect SyntaxError #109120

Closed
#117444
Closed
incorrect SyntaxError#109120
#117444
Labels
3.11only security fixes3.12only security fixes3.13only security fixesinterpreter-core(Objects, Python, Grammar, and Parser dirs)topic-parsertype-bugAn unexpected behavior, bug, or error

Description

@mqyhlkahu
mqyhlkahu
opened on Sep 8, 2023

Bug report

Bug description:

The following input will cause a SyntaxError. That's all well and good, but the message for the SyntaxError is incorrect.

f(A,*)
SyntaxError: iterable argument unpacking follows keyword argument unpacking

This is not correct. That error message is intended for cases like this f(**kwargs, *args).
This bug is present on 3.9, 3.10, and 3.11. I haven't tested 3.12, but I suspect that it is present there as well. The bug is not present on 3.8.

CPython versions tested on:

3.8 3.9, 3.10, 3.11

Operating systems tested on:

Linux, Windows

Linked PRs

Activity

  1. mqyhlkahu
    added
    type-bugAn unexpected behavior, bug, or error
    on Sep 8, 2023
  2. JelleZijlstra
    added
    topic-parser
    on Sep 8, 2023

  3. ambv commented on Sep 8, 2023

    @ambv
    ambv
    on Sep 8, 2023
    Contributor

    Yeah, no changes in 3.12 and main for the error message.

  4. sobolevn commented on Sep 8, 2023

    @sobolevn
    sobolevn
    on Sep 8, 2023
    Member

    On 3.8 it used to be just:

      File "main.py", line 2

    f(A,*)

         ^

SyntaxError: invalid syntax
  5. AlexWaygood
    added
    3.11only security fixes
    3.12only security fixes
    3.13only security fixes
    on Sep 8, 2023
  6. iritkatriel
    added
    interpreter-core(Objects, Python, Grammar, and Parser dirs)
    on Nov 25, 2023
  7. grigoriev-semyon
    added a commit that references this issue on Apr 2, 2024

    pythongh-109120: Fix handle of incorrect star expressions

    92add41
  8. pablogsal
    closed this as completedin #117444on Apr 2, 2024
  9. pablogsal
    added a commit that references this issue on Apr 2, 2024

    gh-109120: Fix syntax error in handlinh of incorrect star expressions (…

    c97d3af
  10. grigoriev-semyon
    added 3 commits that reference this issue on Apr 2, 2024

    pythongh-109120: Fix syntax error in handlinh of incorrect star expre…

    53adcd8

    pythongh-109120: Fix syntax error in handlinh of incorrect star expre…

    ebdd29f

    pythongh-109120: Fix syntax error in handlinh of incorrect star expre…

    87202f0

  11. terryjreedy commented on Apr 3, 2024

    @terryjreedy
    terryjreedy
    on Apr 3, 2024
    Member

    Should the backports be merged?

  12. pablogsal
    added a commit that references this issue on Apr 3, 2024

    [3.11] gh-109120: Fix syntax error in handlinh of incorrect star expr…

    3bc0d2b
  13. terryjreedy
    added a commit that references this issue on Apr 4, 2024

    [3.12] gh-109120: Fix syntax error in handlinh of incorrect star expr…

    a49426a
  14. diegorusso
    added a commit that references this issue on Apr 17, 2024

    pythongh-109120: Fix syntax error in handlinh of incorrect star expre…

    a08eb34
  15. cfbolz
    added a commit that references this issue on May 29, 2025

    port cpy starred expression error message improvements

    bf3f9e5
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Metadata

Metadata

Assignees

No one assigned

    Labels

    3.11only security fixes3.12only security fixes3.13only security fixesinterpreter-core(Objects, Python, Grammar, and Parser dirs)topic-parsertype-bugAn unexpected behavior, bug, or error

    Projects

    No projects

      Milestone

      No milestone

      Relationships

      None yet

      Development

      No branches or pull requests

      Issue actions