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Terminology

What is JupyterLab?​

JupyterLab is a next-generation web-based user interface for Project Jupyter.

  • Interactive working environment in the web browser
  • For the creation of reproducible computer-aided narratives
  • Language agnostic
  • Supports execution environments ("kernels") for languages like Python, R, Julia, C++, ...
  • Extensible software design ("extensions")
  • Document-Centered Computing ("notebooks")

jupyterlab

What is Jupyter Notebook?​

The notebook extends the console-based approach to interactive computing in a qualitatively new direction, providing a web-based application suitable for capturing the whole computation process: developing, documenting, and executing code, as well as communicating the results.

  • It is a file, which stores your work in JSON format
  • Based on a set of open standards for interactive computing
  • Allows development of custom applications with embedded interactive computing.
  • Directly convertible to PDF, HTML, LateX, ...

notebook

What is Jupyter Kernel?​

A "kernel" refers to the separate process which executes code cells within a Jupyter notebook.

  • run code in different programming languages and environments.
  • can be connected to a notebook
  • You can easily create your own kernel which for example runs your specialized virtual Python environment.

notebook_components

What is JupyterLab Extension?​

JupyterLab extensions can customize or enhance any part of JupyterLab.

  • provide new file viewers, editors, themes
  • add items to the menu or command palette
  • Extensions can even provide an API for other extensions to use and can depend on other extensions

The whole JupyterLab itself is simply a collection of extensions that are no more powerful or privileged than any custom extension.

What is JupyterHub?​

JupyterHub can be used to make Jupyter available to a group of HPC users.

  • Creates/manages JupyterLabs for single users.
  • Connects JupyterLabs to users via a configurable HTTP proxy.
  • Supports custom spawners like SLURM spawner, Docker spawner, ...
  • Supports custom authenticators like LDAP, OAuth, ...

jupyterhub