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The release workflow builds wheels for Pyodide with cibuildwheel (CIBW_PLATFORM: pyodide), one per Pyodide ABI (cp313, cp314, cp315), and uploads them to PyPI with the others. The Pyodide tests run with python -m pytest. Native builds are unchanged.
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Publishes WebAssembly wheels for Pyodide, so that
micropip.install("fastpybase64")works in the browser. PyPI accepts these wheels (PEP 783pyemscripten_*_wasm32platform tags).Changes
buildwheels.yml: abuild_pyodidejob (cibuildwheel 4.3.5 withCIBW_PLATFORM: pyodide), whose wheels are uploaded to PyPI with the others. It builds one wheel per Pyodide ABI:cp313-cp313-pyemscripten_2025_0_wasm32(Pyodide 0.28, 0.29)cp314-cp314-pyemscripten_2026_0_wasm32(Pyodide 314)cp315-cp315-pyemscripten_2026_5_wasm32pyproject.toml:[tool.cibuildwheel.pyodide]runs the tests withpython -m pytest(in a Pyodide venv, thepytestscript starts with a shebang to a shell script, which macOS cannot run).tests.ymlalso gets a Pyodide job, so pull requests build and test the WebAssembly wheels.Native builds and wheels are unchanged: no source file is modified, and the new cibuildwheel settings apply to the Pyodide platform only.
Checked
The Pyodide job, as configured here, was run locally (macOS arm64, cibuildwheel 4.3.5): the three wheels build and pass the tests in Node (312 passed on each).