pyodide-py

library0.29.4pypypi✓ verified 82d ago

Core Python interpreter functionality for Pyodide, the Python-to-WebAssembly runtime. Runs Python in the browser via WebAssembly. Version 0.29.4; release cadence follows Pyodide releases.

devops

pip install pyodide-py

github ↗homepage ↗

INSTALL

IMPORT

SIG · PYODIDE-PY

pyodide-py

devopspythonv0.29.4

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

ffi

✓ from pyodide import ffi

✗ from pyodide import loadPyodide

Loads Pyodide in Node.js or browser environment, runs Python code, and prints result.

import os from pyodide import loadPyodide async def main(): pyodide = await loadPyodide() result = pyodide.run_python('1+1') print(result) import asyncio asyncio.get_event_loop().run_until_complete(main())

Debug

Known issues

breakingrunPython() was removed. Use pyodide.run_python() (available on the Pyodide instance) or pyodide.code.run_python() directly.

fix

Replace pyodide.runPython with pyodide.run_python (instance method) or from pyodide.code import run_python.

affects: >=0.25.0

breakingpyodide.eval_code() has been removed. Use pyodide.run_python() or pyodide.code.eval_code().

fix

Use run_python() for statements or eval_code() from pyodide.code for expressions.

affects: >=0.25.0

gotchapyodide-py is the PyPI package for the core interpreter; for full browser integration use the Pyodide CDN (https://cdn.jsdelivr.net/pyodide/).

fix

Use pip install pyodide-py for local testing in Node.js; for browser use the CDN script tag.

affects: all

gotchaAsync initialization: loadPyodide() is async and must be awaited.

fix

Always await loadPyodide() or use .then() in JavaScript.

affects: >=0.18.0

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Version history

0.29.4latest on PyPI · released May 7, 2026

Audit

Dependencies

No dependency data recorded yet.

Agent activity

8 hits · last 30 days

node

Resources

githubhttps://github.com/pyodide/pyodide ↗

homepagehttps://github.com/pyodide/pyodide ↗