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feat: pyemscripten platform tag (PEP 783), 314.0a1, pyodide-eol flag, and maintenance updates (#2812)

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* Use `pyodide config get emscripten_dir`

* Update constraints

* Updates for `pyemscripten` platform tag

* Weird constraints stuff...

* Revert "Weird constraints stuff..."

This reverts commit 4bd785de872269c0b27362ee800f17288b2b4789.

* Add some special constraints for pyodide

* Wheel pyemscripten collision

* Put delocate back in constraints (not needed tho)

* Drop Pyodide 0.27.7 (cp312-pyodide_wasm32)

* Add Pyodide 314.0.0a1 (cp314-pyodide_wasm32)

* Delete no-longer-needed Pyodide 312 constraints

* Update Pyodide 313 and 314 constraints

* Add back prerelease stuff and update tests

* Fix `test_pyodide_on_windows`

* Update and fix tests some more

* Also enable pyodide-prerelease in GHA sample build

* Update tests yet again (`SINGLE_PYTHON_VERSION` changes)

* Add a Pyodide-specific maintenance guide

* Add suggestions from Hood and Gyeongjae

Co-Authored-By: Hood Chatham <roberthoodchatham@gmail.com>
Co-Authored-By: Gyeongjae Choi <def6488@gmail.com>

* Add "Last updated: May 2026" to Pyodide document

* Add a Pyodide EOL filter

* Fix typo

* Update maintenance docs about EoL Pyodide

* Add Pyodide 312 constraints back

* Update Pyodide 313 and 314 constraints

* Remove "experimental" note about Pyodide

* Remove another experimental Pyodide sentence

* Add docs about the `pyodide-eol` enable option

---------

Co-authored-by: Hood Chatham <roberthoodchatham@gmail.com>
Co-authored-by: Gyeongjae Choi <def6488@gmail.com>
Co-authored-by: Henry Schreiner <henryfs@princeton.edu>
This commit is contained in:
agriya khetarpal
2026-05-09 14:01:41 -04:00
committed by GitHub
co-authored by Hood Chatham Gyeongjae Choi Henry Schreiner
parent 542335fb4a
commit d2c0e59833
20 changed files with 343 additions and 99 deletions
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docs/platforms.md
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@@ -159,8 +159,6 @@ By default, `ARM64` is not enabled when running on non-`ARM64` runners. Use [`CI
## Pyodide/WebAssembly {: #pyodide}
Pyodide is offered as an experimental feature in cibuildwheel.
### System requirements
Pyodide builds require a Linux or macOS machine.
@@ -173,7 +171,7 @@ You must target pyodide with `--platform pyodide` (or use `--only` on the identi
It is also possible to target a specific Pyodide version by setting the [`pyodide-version`](options.md#pyodide-version) option to the desired version. Users are responsible for setting an appropriate Pyodide version according to the `pyodide-build` version. A list is available in Pyodide's [cross-build environments metadata file](https://github.com/pyodide/pyodide/blob/main/pyodide-cross-build-environments.json), which can be viewed more easily by installing `pyodide-build` from PyPI and using `pyodide xbuildenv search --all` to see a compatibility table.
If there are pre-releases available for a newer Pyodide version, the `pyodide-prerelease` [`enable`](options.md#enable) can be used to include pre-release versions.
If there are pre-releases available for a newer Pyodide version, the `pyodide-prerelease` [`enable`](options.md#enable) can be used to include pre-release versions. To build for older Pyodide versions that are no longer the current stable, use the `pyodide-eol` [`enable`](options.md#enable).
### Running tests