How to select python interpreter for .ipynb file while using uv for python environment creation?

For test.ipynb file i am trying to select the python environment for kernel. However my environment created from uv is not being displayed as an option and upon trying to manually paste the path is also not working. How do we make .ipynb files work within uv?

Check the image where .venv is not being shown as an option: Read more

Answer

One obvious solution would be:

1. create a uv Project folder and enter it - choose the python version

uv init mytest --python 3.12
cd mytest

# move your test.ipynb into it
mv /path/to/test.ipynb ./

2. install Jupyter notebook into the project

uv add jupyter

3. run jupyter of this project

uv run jupyter notebook

Now you can open your test.ipynb and from inside the Jupyter Notebook you can do

!uv add your-packages

and control uv from inside your Jupyter Notebook. Add further dependencies or delete them. And update uv accordingly.

Test inside the Jupyter notebook with:

!which python

and

!python --version

You will see it is the environment (.venv/bin/python) of your project.

uv's advantage

The great thing of uv is - even if you create thousands of environments - if you use the same Package version, for all those environments, the Packages are installed physically only exact once. And all the environments will use hard- or softlinks to have them virtually inside their environment. So this is really hard-drive-memory efficient!

While if your coworker gets your pyproject.toml file, he can recreate in his machine exactly your environment with Jupyter Notebook.

This is quite amazing.