Deitel book "Python for Programmers"

[ricardian]

Thanks for your advice. I'm not sure whether or not I have fixed the problem!
First I ran "pip install ipywidgets" and got lots of "requirement already met" output.
Then, in desperation, I ran Anaconda Navigator, found Jupyterlab which had the "install" icon showing and clicked it. After installation I shut Anaconda Navigator and tried running "jupyter labextension install @jupyter-widgets/jupyterlab-manager" again, it didn't fail this time but there was no definite indication that it had succeeded.
Then, as instructed in Deitel's book, I ran "jupyter labextension install jupyter-matplotlib", it didn't fail but again no definite indication that it had succeeded. Here's the output:
(base) C:\Windows\system32>jupyter labextension install @jupyter-widgets/jupyterlab-manager
Building jupyterlab assets (production, minimized)
|
(base) C:\Windows\system32>jupyter labextension install jupyter-matplotlib
Building jupyterlab assets (production, minimized)
\