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In Python, and as a consequence Jupyter Books, a requirements.txt file is a type of file that usually stores information about all the libraries, modules, and packages in itself that are used while developing a particular project.
At this point, the `requirements.txt` consists of the following packages:
```text
numpy
scipy
matplotlib
plotly
myst_nb
jupyterquiz
sphinx-exercise
sphinx-proof
jupyter-book
```
To install the required packages for your book, you can simply run:
```bash
pip install -r requirements.txt
```
## More Information
Find more information on how to set up your working environment:
- [](build:create-env)