Developing ITables#

In this page you will find instructions on how to create a development environment and how to test your changes.

How to create a development environment#

Create a conda environment with

mamba env create --file environment.yml

(use conda if you don’t have mamba) or update it with

mamba env update --file environment.yml

Then, activate that environment with

conda activate itables

Install the pre-commit hooks with

pre-commit install

and finally, install the development version of itables with

pip install -e .

How to run the Python test suite#

The Python code can be tested with just


Running the pytest test suite is not enough to guaranty that a change won’t break itables. You also need to test that the tables are well rendered in the different contexts like Jupyter Book, Jupyter Lab, VS Code.

Jupyter Book#

The itables documentation uses Jupyter Book.

To build the documentation locally, you need to create a Jupyter kernel named itables with

python -m ipykernel install --name itables --user

Then you can build the documentation with

jupyter-book build docs

This will give you a link to a local version of the documentation.

If you make any significant change then you should go through the updated documentation and make sure all the examples still work properly.

Jupyter Lab#

In the itables conda environment, you can start Jupyter with

jupyter lab

You should test at least this code snippet:

from itables import init_notebook_mode
from itables.sample_dfs import get_countries

# try both connected=False (the default) and connected=True
init_notebook_mode(all_interactive=True, connected=False)


You can do this using for instance the notebook at tests/test_notebook.ipynb.

Note that you can also open the documentation in Jupyter: go to the docs folder and open e.g. as a notebook (using a right click).

Other notebook editors#

If you change anything related to the Javascript/HTML code, you should test the supported editors in both the connected and offline mode.

For the online editors like Google Colab, you might have to install your development version there with e.g.

!pip uninstall itables -y
!pip install git+