Deitel book "Python for Programmers"

[snippsat]

Looking at this make sure you have at least JupyterLab 3.0
Then can just do:

pip install ipywidgets

This was the old way for version 2 of JupyterLab jupyter labextension install @jupyter-widgets/jupyterlab-manager.

Quick test with my own environment.

# Node version
(tom_env) G:\div_code
λ node -v
v16.15.1

# jupyter lab version
(tom_env) G:\div_code
λ jupyter lab -V
3.3.4

# install
(tom_env) G:\div_code
λ pip install jupyterlab_widgets
Requirement already satisfied: jupyterlab_widgets in g:\miniconda3\envs\tom_env\lib\site-packages (1.0.2)

So if start Jupyter lab.

(tom_env) G:\div_code
λ jupyter lab
[I 2023-04-08 18:35:31.545 ServerApp] jupyterlab | extension was successfully linked.
.....

Then in Notebook can use widgets.