motorcycle 🏍️

A JupyterLab extension for moving around sidecars in your JupyterLab workspace.

Note: motorcycle is in the early stages of active development. It may change or break without warning.

Install

To install the extension, execute:

pip install motorcycle

Features

motorcycle adds a "Layout" menu option at the end of the JupyterLab menu bar (after File, Edit, ...).

"All tabs → one tab area"

"All tabs → left to right",   "All tabs → top to bottom"

"Sidecars to right, others to left",   "Sidecars to bottom, others to top"

Move all Sidecars, OR move only the "viz tools" (jdaviz, mast-aladin, mast-table)

In addition to the "viz tools" mast-aladin and jdaviz, let's open our own Sidecar. The commands labeled "Viz tools" will only move instances of jdaviz, mast-aladin, or mast-table; commands labeled "Sidecars" will move all sidecars, including the viz tools and any others that are open in the workspace.

Uninstall

To remove the extension, execute:

pip uninstall motorcycle

Contributing

Background: JupyterLab extensions

JupyterLab has extensive narrative documentation as well as extensive example extensions for getting up to speed.

Development install

Note: You will need NodeJS to build the extension package.

The jlpm command is JupyterLab's pinned version of yarn that is installed with JupyterLab. You may use yarn or npm in lieu of jlpm below.

# Clone the repo to your local environment
# Change directory to the motorcycle directory

# Set up a virtual environment and install package in development mode
python -m venv .venv
source .venv/bin/activate
pip install --editable "."

# Link your development version of the extension with JupyterLab
jupyter labextension develop . --overwrite

# Rebuild extension Typescript source after making changes
# IMPORTANT: Unlike the steps above which are performed only once, do this step
# every time you make a change.
jlpm build

You can watch the source directory and run JupyterLab at the same time in different terminals to watch for changes in the extension's source and automatically rebuild the extension.

# Watch the source directory in one terminal, automatically rebuilding when needed
jlpm watch
# Run JupyterLab in another terminal
jupyter lab

With the watch command running, every saved change will immediately be built locally and available in your running JupyterLab. Refresh JupyterLab to load the change in your browser (you may need to wait several seconds for the extension to be rebuilt).

By default, the jlpm build command generates the source maps for this extension to make it easier to debug using the browser dev tools. To also generate source maps for the JupyterLab core extensions, you can run the following command:

jupyter lab build --minimize=False

Development uninstall

pip uninstall motorcycle

In development mode, you will also need to remove the symlink created by jupyter labextension develop command. To find its location, you can run jupyter labextension list to figure out where the labextensions folder is located. Then you can remove the symlink named motorcycle within that folder.

Testing the extension

Frontend tests

This extension is using Jest for JavaScript code testing.

To execute them, execute:

jlpm
jlpm test

Integration tests

This extension uses Playwright for the integration tests (aka user level tests). More precisely, the JupyterLab helper Galata is used to handle testing the extension in JupyterLab.

More information are provided within the ui-tests README.

Packaging the extension

See RELEASE