Skip to main content

Voilà turns Jupyter notebooks into standalone web applications

Project description

voila

Documentation Binder Join the Gitter Chat

Rendering of live Jupyter notebooks with interactive widgets.

Introduction

Voilà turns Jupyter notebooks into standalone web applications.

Unlike the usual HTML-converted notebooks, each user connecting to the Voilà tornado application gets a dedicated Jupyter kernel which can execute the callbacks to changes in Jupyter interactive widgets.

  • By default, Voilà disallows execute requests from the front-end, preventing execution of arbitrary code.
  • By default, Voilà runs with the strip_source option, which strips out the input cells from the rendered notebook.

Installation

Voilà can be installed with the mamba (or conda) package manager from conda-forge

mamba install -c conda-forge voila

or from PyPI

pip install voila

JupyterLab preview extension

Voilà provides a JupyterLab extension that displays a Voilà preview of your Notebook in a side-pane.

Starting with JupyterLab 3.0, the extension is automatically installed after installing voila with pip install voila.

If you would like to install the extension from source, run the following command.

jupyter labextension install @voila-dashboards/jupyterlab-preview

Usage

As a standalone tornado application

To render the bqplot example notebook as a standalone app, run voila bqplot.ipynb. To serve a directory of jupyter notebooks, run voila with no argument.

For example, to render the example notebook bqplot.ipynb from this repository with Voilà, you can first update your current environment with the requirements of this notebook (in this case in a conda environment and render the notebook with

mamba env update -f .binder/environment.yml
cd notebooks/
voila bqplot.ipynb

For more command line options (e.g., to specify an alternate port number), run voila --help.

As a server extension to notebook or jupyter_server

Voilà can also be used as a Jupyter server extension, both with the notebook server or with jupyter_server.

To install the Jupyter server extension, run

jupyter serverextension enable voila
jupyter server extension enable voila

When running the Jupyter server, the Voilà app is accessible from the base url suffixed with voila.

Documentation

To get started with using Voilà, check out the full documentation:

https://voila.readthedocs.io/

Examples

The following two examples show how a standalone Jupyter notebook can be turned into a separate app, from the command-line integration.

Rendering a notebook including interactive widgets and rich mime-type rendering

Voilà basics

Rendering a notebook making use of a custom widget library (bqplot)

Voilà bqplot

Showing the source code for a Voilà notebook

The sources of the Jupyter notebook can be displayed in a Voilà app if option strip_sources is set to False.

Voilà sources

Voilà dashboards with other language kernels**

Voilà is built upon Jupyter standard formats and protocols, and is agnostic to the programming language of the notebook. In this example, we present an example of a Voilà application powered by the C++ Jupyter kernel xeus-cling, and the xleaflet project.

Voilà cling

The Voilà Gallery

The Voilà Gallery is a collection of live dashboards and applications built with Voilà and Jupyter widgets.

Most of the examples rely on widget libraries such as ipywidgets, ipyleaflet, ipyvolume, bqplot and ipympl, and showcase how to build complex web applications entirely based on notebooks.

New examples can be added to the gallery by following the steps listed in the voila-gallery/gallery repository.

Development

See CONTRIBUTING.md to know how to contribute and set up a development environment.

Related projects

Voilà depends on nbconvert and jupyter_server.

License

We use a shared copyright model that enables all contributors to maintain the copyright on their contributions.

This software is licensed under the BSD-3-Clause license. See the LICENSE file for details.

Project details


Release history Release notifications | RSS feed

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

voila-0.4.0.tar.gz (6.6 MB view details)

Uploaded Source

Built Distribution

voila-0.4.0-py3-none-any.whl (5.5 MB view details)

Uploaded Python 3

File details

Details for the file voila-0.4.0.tar.gz.

File metadata

  • Download URL: voila-0.4.0.tar.gz
  • Upload date:
  • Size: 6.6 MB
  • Tags: Source
  • Uploaded using Trusted Publishing? No
  • Uploaded via: twine/4.0.1 CPython/3.10.8

File hashes

Hashes for voila-0.4.0.tar.gz
Algorithm Hash digest
SHA256 5c91fb969bffa3fc28846d8a3eeae804d71577ff49f2cab6b663ad325ae69ad0
MD5 cb319e9d19c1fcbccb96e999d758b028
BLAKE2b-256 63ab653c9ae6c11283ea9b61a00b8652772509395fc33a52093c9aec055cc3f3

See more details on using hashes here.

File details

Details for the file voila-0.4.0-py3-none-any.whl.

File metadata

  • Download URL: voila-0.4.0-py3-none-any.whl
  • Upload date:
  • Size: 5.5 MB
  • Tags: Python 3
  • Uploaded using Trusted Publishing? No
  • Uploaded via: twine/4.0.1 CPython/3.10.8

File hashes

Hashes for voila-0.4.0-py3-none-any.whl
Algorithm Hash digest
SHA256 b7ed46d2a593f5ad3808577ceec93136779b7e960f8b221441130cda6f8e8fa8
MD5 f834a4b2e2d034d1c351b170aefb6c1f
BLAKE2b-256 ce6355971b7c40ab1c4d87beec34775811b8aeea9a123b2d0abc41febc58526c

See more details on using hashes here.

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page