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Node.js CI

Pyodide Webpack Plugin

A Webpack plugin for integrating pyodide into your project.

works with pyodide >=0.21.3

Getting Started

Install pyodide and @pyodide/webpack-plugin

npm install --save-dev pyodide @pyodide/webpack-plugin

or

yarn add -D pyodide @pyodide/webpack-plugin

or

pnpm add -D pyodide @pyodide/webpack-plugin

Add the plugin to your webpack config

const { PyodidePlugin } = require("@pyodide/webpack-plugin");

module.exports = {
  plugins: [new PyodidePlugin()],
};

In your javascript application being bundled with webpack

async function main() {
  let pyodide = await loadPyodide({ indexURL: `${window.location.origin}/pyodide` });
  // Pyodide is now ready to use...
  console.log(
    pyodide.runPython(`
    import sys
    sys.version
  `)
  );
}
main();

See examples.

Options

globalLoadPyodide

Type: boolean
Default: false
Required: false
Description:Whether or not to expose loadPyodide method globally. A globalThis.loadPyodide is useful when using pyodide as a standalone script or in certain frameworks. With webpack we can scope the pyodide package locally to prevent leaks (default).

outDirectory

Type: string
Default: pyodide
Required: false
Description: Relative path to webpack root where you want to output the pyodide files.

packageIndexUrl

Type: string
Default: https://cdn.jsdelivr.net/pyodide/v${installedPyodideVersion}/full/
Required: false
Description: CDN endpoint for python packages. This option differs from loadPyodide indexUrl in that it only impacts pip packages and does not affect the location the main pyodide runtime location. Set this value to "" if you want to keep the pyodide default of accepting the indexUrl.

Contributing

Please view the contributing guide for tips on filing issues, making changes, and submitting pull requests. Pyodide is an independent and community-driven open-source project. The decision-making process is outlined in the Project governance.

https://github.com/pyodide/pyodide/blob/main/CODE-OF-CONDUCT.md

License

Pyodide Webpack Plugin uses the Mozilla Public License Version 2.0.