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test_hashlib fails with SSLlibrary having only SHA3 algo but no SHAKE · Issue #141907 · python/cpython · GitHub

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test_hashlib fails with SSLlibrary having only SHA3 algo but no SHAKE #141907

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test_hashlib fails with SSLlibrary having only SHA3 algo but no SHAKE#141907
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extension-modulesC modules in the Modules dirtype-bugAn unexpected behavior, bug, or error

Description

Ansuel
opened on Nov 24, 2025

Bug report

Bug description:

If Python3 use an OpenSSL like SSL library that only expose SHA3 algo and no SHAKE algo, the test_hashlib test wrongly detect the algo presence and fails to execute on the SHA3 test.

This has been identified in a wrong logic for the try-except block for HASH, HASHXOF detection.

CPython versions tested on:

3.13

Operating systems tested on:

Linux

Linked PRs

Activity

  1. Ansuel
    added
    type-bugAn unexpected behavior, bug, or error
    on Nov 24, 2025
  2. picnixz
    added
    extension-modulesC modules in the Modules dir
    on Nov 24, 2025
  3. gpshead
    self-assigned this
    on Nov 24, 2025

  4. gpshead commented on Nov 24, 2025

    gpshead
    on Nov 24, 2025
    Member

    thanks, PR set to automerge.

  5. Ansuel commented on Nov 24, 2025

    Ansuel
    on Nov 24, 2025
    ContributorAuthor

    @gpshead thanks for the fast review!

  6. StanFromIreland
    changed the title [-]test_haslib fails with SSLlibrary having only SHA3 algo but no SHAKE[/-] [+]test_hashlib fails with SSLlibrary having only SHA3 algo but no SHAKE[/+] on Nov 24, 2025
  7. gpshead
    added a commit that references this issue on Nov 24, 2025

    gh-141907: Better handle support for SHA3 for test_hashlib (GH-141908)

    fee7782
  8. miss-islington
    added 2 commits that reference this issue on Nov 24, 2025

    pythongh-141907: Better handle support for SHA3 for test_hashlib (pyt…

    1f1927b

    pythongh-141907: Better handle support for SHA3 for test_hashlib (pyt…

    0ab4b8c
  9. picnixz
    added 2 commits that reference this issue on Nov 25, 2025

    [3.14] gh-141907: Better handle support for SHA3 for test_hashlib (GH…

    add73fd

    [3.13] gh-141907: Better handle support for SHA3 for test_hashlib (GH…

    c0c13f2

  10. picnixz commented on Nov 25, 2025

    picnixz
    on Nov 25, 2025
    Member

    Thanks for the report & fix!

  11. picnixz
    closed this as completedon Nov 25, 2025
  12. StanFromIreland
    added a commit that references this issue on Dec 6, 2025

    pythongh-141907: Better handle support for SHA3 for test_hashlib (pyt…

    4712c0c
  13. ashm-dev
    added a commit that references this issue on Dec 8, 2025

    pythongh-141907: Better handle support for SHA3 for test_hashlib (pyt…

    2317884
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