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Default Cell for Jupyter Notebooks

This Jupyter extension allows you to create a default cell and run it whenever a new notebook is generated. This is useful for constant imports you always use (like import numpy as np and import pandas as pd)

Installation:

Install Jupyter extensions:

run:

pip install jupyter_contrib_nbextensions && jupyter contrib nbextensions install

If you happen to get an [Errno 13] Permission denied ..., try adding --user at the end of the command.

Install this extension:

  1. First, find the extensions folder of nbextensions. You can do so by running: pip show jupyter-contrib-nbextensions. The output will contain a Location section (something like: /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages)

  2. Go to {Location}/jupyter_contrib_nbextensions/nbextensions/, and place the default_cell folder in there (keeping the files in the default_cell directory)

  3. run jupyter contrib nbextensions install [--user] (you'll need to add --user if you needed it before)

Using the Extension:

Before the first use, activate the extension under the NB Extensions tab.

Two configurations are available:

  • Cell Input: the text which will be executed. Use <br> for new-lines
  • Run Automatically: whether to run the cell on startup or not

Based on the code and instructions of this blogpost by Will Koehrsen.