Installing a Jupyter extension

Extensions modify the appearance or behaviour of Jupyter applications (including JupyterLab and Jupyter Notebook).

You must install any files necessary for JupyterLab, including configuration, customization, extensions, and kernels, into /home/cdsw for each project.

The following example installs the ipython-sql extension. This extension adds a %sql magic command that allows you to communicate directly with any database supported by SQLAlchemy.

Launch a JupyterLab session.
Open a terminal and run the following command:
```
pip install ipython-sql
```
note
The previous command is only an example for installing ipython-sql.
Open a notebook or console and run the following command:
```
%load_ext sql
```

You can now use the %sql magic command to connect to a particular database, and the %%sql magic command to create a cell containing an SQL query to run against that database. See the JupyterLab documentation for additional information on Jupyter magic commands.