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GeezerVison is showing github.com — Emscripten build doesn't include `_decimal`, `_uuid`, `_ssl` or `_hashlib` · Issue #136976 · python/cpython

Emscripten build doesn't include _decimal, _uuid, _ssl or _hashlib #136976

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Emscripten build doesn't include _decimal, _uuid, _ssl or _hashlib#136976
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OS-emscriptenbuildThe build process and cross-buildThe build process and cross-buildextension-modulesC modules in the Modules dirC modules in the Modules dirtype-featureA feature request or enhancementA feature request or enhancement

Description

@hoodmane
hoodmane
opened on Jul 22, 2025
Issue body actions

I think these require similar treatment to libffi.

cc @ambv

Linked PRs

  • gh-136976: Emscripten: Add _decimal and libmpdec #136979
  • gh-136976: Emscripten: Add _decimal and libmpdec #136997
  • [3.14] gh-136976: Emscripten: Add _decimal and libmpdec (GH-136997) #137066
Reacted by Łukasz Langa, Stan Ulbrych and Emma Smith

Activity

  1. hoodmane
    added
    extension-modulesC modules in the Modules dirC modules in the Modules dir
    OS-emscripten
    on Jul 22, 2025

  2. skirpichev commented on Jul 22, 2025

    @skirpichev
    skirpichev
    on Jul 22, 2025
    Member
    More actions

    That's strange as the decimal module has pure-Python version. I was thinking about dropping one, but maybe that's the case it could be helpful.

  3. hoodmane commented on Jul 22, 2025

    @hoodmane
    hoodmane
    on Jul 22, 2025
    ContributorAuthor
    More actions

    It has the pure Python version, just not the C version.

  4. hoodmane
    added a commit that references this issue on Jul 22, 2025

    pythongh-136976: Emscripten: Add _decimal and libmpdec

    58ce78d

  5. picnixz commented on Jul 22, 2025

    @picnixz
    picnixz
    on Jul 22, 2025
    Member
    More actions

    For _hashlib, I think the issue also occurs in WASI. I'm currently doing some thing with hashlib but I get this: "checking whether compiling and linking against OpenSSL works... no".

  6. picnixz
    changed the title [-]Emscripten build doesn't include decimal, uuid, openssl, or hashlib[/-] [+]Emscripten build doesn't include `_decimal`, `_uuid`, `_ssl` or `_hashlib`[/+] on Jul 22, 2025

  7. hoodmane commented on Jul 22, 2025

    @hoodmane
    hoodmane
    on Jul 22, 2025
    ContributorAuthor
    More actions

    We're building hashlib and ssl in Pyodide, so it should be possible to use the same approach here for Emscripten.

  8. freakboy3742
    added a commit that references this issue on Jul 24, 2025

    gh-136976: Emscripten: Add _decimal and libmpdec (#136997)

    ecb3f23
  9. miss-islington
    added a commit that references this issue on Jul 24, 2025

    pythongh-136976: Emscripten: Add _decimal and libmpdec (pythonGH-136997)

    20d403d
  10. hugovk
    added a commit that references this issue on Jul 29, 2025

    [3.14] gh-136976: Emscripten: Add _decimal and libmpdec (GH-136997) (#…

    38a42fe
  11. taegyunkim
    added a commit that references this issue on Aug 4, 2025

    pythongh-136976: Emscripten: Add _decimal and libmpdec (python#136997)

    14f01fc
  12. picnixz
    added
    buildThe build process and cross-buildThe build process and cross-build
    type-featureA feature request or enhancementA feature request or enhancement
    on Aug 5, 2025
  13. Agent-Hellboy
    added a commit that references this issue on Aug 19, 2025

    pythongh-136976: Emscripten: Add _decimal and libmpdec (python#136997)

    0dc5173
  14. kumaraditya303
    added a commit that references this issue on Sep 9, 2025

    [3.14] pythongh-136976: Emscripten: Add _decimal and libmpdec (python…

    79393cf
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