JupyterLab

JupyterLab#

JupyterLab is a web-based interactive development environment for Jupyter notebooks, code, and data. JupyterLab is flexible: configure and arrange the user interface to support a wide range of workflows in data science, scientific computing, and machine learning. JupyterLab is extensible and modular: write plugins that add new components and integrate with existing ones.

Installation#

To install JupyterLab, you can use the following commands:

pip install jupyterlab

Usage#

To start JupyterLab, you can use the following command:

jupyter lab

To create a new Jupyter notebook, click on the + icon in the file browser and select the desired kernel.

Keyboard shortcuts#

Jupyter notebook has two modes: Edit mode and Command mode. The Edit mode allows you to type into the cells like a normal text editor. The Command mode allows you to edit the notebook as a whole, but not type into individual cells. Jupyter notebook has many keyboard shortcuts []. Here are some commonly used shortcuts. Note that the shortcuts are for Windows and Linux users. For Mac users, replace Ctrl with Command.

Shortcuts in both modes:

  • Shift + Enter: run the current cell, select below

  • Ctrl + Enter: run selected cells

  • Alt + Enter: run the current cell, insert below

  • Ctrl + S: save and checkpoint

While in command mode (press Esc to activate):

  • A: insert cell above

  • B: insert cell below

  • X: cut selected cells

  • C: copy selected cells

  • V: paste cells below

  • Y: change the cell type to Code

  • M: change the cell type to Markdown

  • P: open the command palette

While in edit mode (press Enter to activate):

  • Esc: activate the command mode

  • Tab: code completion or indent

  • Shift + Tab: show tooltip

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