# The Python Data Model
Sample code for Chapter 1 of _Fluent Python 2e_ by Luciano Ramalho (O'Reilly, 2020)
## Running the tests
### Doctests
Use Python's standard ``doctest`` module to check stand-alone doctest file:
$ python3 -m doctest frenchdeck.doctest -v
And to check doctests embedded in a module:
$ python3 -m doctest vector2d.py -v
### Jupyter Notebook
Install ``pytest`` and the ``nbval`` plugin:
$ pip install pytest nbval
Run:
$ pytest --nbval