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📓 The Future of the Jupyter Notebook

🐍 PyConDE & PyData Berlin 2023

📅 2023-04-19

👤 Jeremy Tuloup

• https://github.com/jtpio
• https://twitter.com/jtpio
• https://fosstodon.org/@jtp

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About

🧑‍🚀 Technical Director at QuantStack

🟠 Core Jupyter Developer

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History

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Interactive Computing

• Compose
• Submit
• Run
• Output
• View
• Repeat

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IPython: the Terminal as a UI

• The terminal is a user interface!
• Challenges:
  • No narrative
  • No memory
  • No reproducibility and communication

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REPL: Read Eval Print Loop

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Why is the Jupyter Notebook useful?

• Maintain full interactive computing workflow
• Adds:
  • narrative
  • memory
  • repoducibility
  • communication

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IPython

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Jupyter Notebook

• Millions of users
• Millions of notebooks on GitHub
• Heavily used in data, science, education, finance...

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Working with a Notebook

• Client / Server Architecture
• Standard file format
• Kernels for execution

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The Jupyter Protocol

• Messaging in Jupyter: https://jupyter-client.readthedocs.io/en/stable/messaging.html
• Frontends and kernels speak the same protocol

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Classic Notebook

• Released in 2015 as a successor to the IPython Notebook
• Built with jQuery, RequireJS, Bootstrap

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JupyterLab

• Next Gen Notebook Interface (and more)
• Extensible Computing Environment
• Built on modern web technologies

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The state of the Classic Notebook

• Very few maintainers, very little time
• But new issues were still coming up on the jupyter/notebook repository, but rarely got any replies
• New weekly meeting to triage issues
• [DISCUSS] How to improve supportability of the repo? jupyter/notebook#5360

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• jupyter/notebook#6210

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The Reality

• Simplicity is a feature (less is more)
• Still lots of users of the Classic Notebook, especially in education
• Document-centric interface helps remove the noise and focus on the content
• The "tabs-in-tabs" can be confusing (the web browser already has tabs)

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Problems

• The Classic Notebook has been unmaintained for years
• It was very difficult to extend and make different extensions co-exist
• Built on "old" web technologies (jQuery)
• And still a lot of people using it!

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The initial plan was to sunset Notebook 🌅

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The current plan is to sunrise Notebook ☀️

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Jupyter Enhancement Proposal 79

• "Build Jupyter Notebook v7 off of JupyterLab components"
• Merged on Dec 24, 2021
• https://jupyter.org/enhancement-proposals/79-notebook-v7/notebook-v7.html

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RetroLab

• Started end of 2020
• https://github.com/jupyterlab/retrolab
• Built with JupyterLab components and extensions
• But keep the Classic Notebook look and feel
• "RetroLab running on Jupyter Server will be the basis for Notebook v7."

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Keep the Classic Notebook look and feel

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New Features

• 🧪 Many coming from JupyterLab automatically
• 🧩 Mime extensions
• 🐛 Debugger
• 📁 Accessibility (CodeMirror 6)
• 🎨 Theming and Dark Mode
• 📑 Built-in Table of Contents
• 💡 Can be used in JupyterLite
• 👥 Real Time Colaboration (demo)

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Demo

• Locally: http://localhost:8888/tree
• Try it on Binder:

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Extensions

• What about popular extensions like RISE and nbgrader?

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JupyterLab Extensions

• Most JupyterLab extensions are compatible with Notebook 7
• Popular Classic Notebook extensions have been ported to JupyterLab 4 / Notebook 7
• https://jupyterlab-contrib.github.io/extensions.html
• https://jupyterlab-contrib.github.io/migrate_from_classical.html

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Migration

• JupyterLab 4, Notebook 7 and NBClassic 1 can be used together on the same Jupyter Server (demo)
• Migration guide available in the documentation:
  • https://jupyter-notebook.readthedocs.io/en/latest/migrate_to_notebook7.html
  • Describes several scenarios for running both the Classic Notebook and Notebook 7 on the same server

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Migration Banner

• NBclassic and Notebook 6.5.x show a banner to encourage users to migrate to Notebook 7

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Server logs

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Current State

• Jupyter Notebook 7.0.0b0 is available
• Install it with pip: pip install --pre notebook
• Install it with conda: conda install -c conda-forge/label/notebook_beta notebook
• Please test and report issues and feedback!

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Where is development happening?

• Notebook 7 is being developed in https://github.com/jupyter/notebook (main branch)
• The Classic Notebook UI has been moved to https://github.com/jupyter/nbclassic
• Notebook 6.5.x (security patches only) in https://github.com/jupyter/notebook/tree/6.5.x

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What's next

• Blog post about Notebook 7 and the Migration Guides
• Notebook 7 Release Candidates
• JupyterLab 4 final release expected for JupyterCon 2023 early May 2023
• Notebook 7 final release expected after JupyterLab 4 (date TBC)

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How can I help?

• If you are a user of the Classic Notebook and have concerns, please reach out!
• Please test the JupyterLab 4 and Notebook 7 betas and give feedback 🙏
• Report issues and feedback on the Notebook repository: https://github.com/jupyter/notebook/issues
• Start discussions on the Jupyter Discourse: https://discourse.jupyter.org

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Thanks!

Special thanks to the Notebook Team and the authors of the JEP:

Eric Charles, Sylvain Corlay, Afshin Darian, Sharan Foga, Eric Gentry, Kevin Goldsmith, Brian Granger, Jason Grout, Fernando Pérez, Zach Sailer, Rosio Reyes, Jeremy Tuloup

And to the broader Jupyter Community!

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JupyterCon 2023

May 10-12, 2023 - Cité des Sciences, Paris

jupytercon.com

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Resources

You can find the slides on GitHub:

• Repository: https://github.com/jtpio/pyconde-pydata-berlin-2023-notebook-7
• Live version: https://jtpio.github.io/pyconde-pydata-berlin-2023-notebook-7/