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Data Science
Simon Willison's Blog·Jun 13·5 min read
Publishing WASM wheels to PyPI for use with Pyodide
TL;DR
Previously, Pyodide maintainers had to manually manage over 300 Python packages, creating a bottleneck for the community. Now, developers can publish Python packages as WebAssembly (WASM) wheels directly to the Python Package Index (PyPI).
✦ Why It Matters
Engineers can now easily publish and install Python packages for web applications using Pyodide, enhancing development efficiency.
Key Takeaways
- Publish your Pyodide-compatible packages directly to PyPI.
- Utilize the PyEmscripten platform for WebAssembly distribution.
- Explore creating packages like luau-wasm for broader use.
- Leverage micropip for easy installation of new packages.
How It Works
The new feature allows developers to compile Python packages into WebAssembly wheels, which can then be published to PyPI. This process simplifies the distribution of packages for Pyodide, enabling developers to use familiar tools and workflows.
By adhering to the standards set by PEP 783, the integration with PyPI becomes seamless, allowing for real-time package installation in the Pyodide environment.