jupyterlite-pyodide-kernel

A Python kernel for JupyterLite powered by Pyodide,

Requirements

• python >=3.8

Compatibility

With Jupyter

status	jupyterlite-pyodide-kernel	jupyterlite-core	jupyterlab	notebook	retrolab
stable	0.2.*	>=0.2,<0.3	>=4.0.7,<5	>=7.0.5,<8	-
stable	0.1.*	>=0.1,<0.2	>=3.5,<3.6	-	>=0.3,<0.4

Installing the matching version of JupyterLab with your package manager can help ensure matching labextension assets and kernel dependencies, even though this kernel does not yet work in a full, jupyter_server-hosted client such as JupyterLab or Notebook.

With Pyodide

jupyterlite-pyodide-kernel	pyodide	python	emscripten
>=0.1.0,<=0.1.1	0.23.*	3.10.*	3.1.29
>=0.1.2,<=0.2.1	0.24.*	3.10.*	3.1.45
>=0.2.2,<=0.2.3	0.25.*	3.11.*	3.1.46

Note that the Emscripten version is strict down to the bugfix version.

Install

To install the Pyodide kernel labextension and the CLI addons for jupyter lite, run:

pip install jupyterlite-pyodide-kernel

or with conda, mamba, micromamba, etc.

conda install -c conda-forge jupyterlite-pyodide-kernel

For more options see the development install or contributing guide.

Usage

Build a JupyterLite site:

jupyter lite build

Some new CLI options are also available:

jupyter lite --help

This should show something like this:

  --piplite-wheels=<typedtuple-item-1>...
      Local paths or URLs of piplite-compatible wheels to copy and index
      Default: ()
      Equivalent to: [--PipliteAddon.piplite_urls]
  --pyodide=<Unicode>
      Local path or URL of a pyodide distribution tarball
      Default: ''
      Equivalent to: [--PyodideAddon.pyodide_url]

Learn more

⚠️ The documentation for advanced configuration is available from the main JupyterLite documentation site:

• configuring
• command line interface

Uninstall

To remove the extension, run:

pip uninstall jupyterlite-pyodide-kernel  # or however you installed it

Prerelease Versions

To install pre-release versions with pip:

pip install --upgrade --pre jupyterlite-pyodide-kernel

Or, similarly for the conda ecosystem, for alpha packages:

conda install \
  -c conda-forge/label/jupyterlite_core_alpha \
  -c conda-forge/label/jupyterlite_pyodide_kernel_alpha \
  -c conda-forge \
  jupyterlite-pyodide-kernel

Note: _beta and _rc packages would follow a similar channel naming convention

Development Install

Below is an short overview of getting up and running quickly. Please see the contributing guide for full details.

Development Requirements

Recommended a Python virtual environment provided by a tool of choice, e.g. one of:

• virtualenv
• mamba
• conda

Ensure the local development environment has:

• git
• nodejs 20
• python >=3.8

Development Quick Start

git clone https://github.com/jupyterlite/pyodide-kernel
cd pyodide-kernel
npm run quickstart

Then, serve the built demo site, documentation, and test reports with Python's built-in HTTP server:

jlpm serve