Deitel book "Python for Programmers"

[ricardian]

I have installed Anaconda3, python 3.10.10 and issued commands from Terminal, Anaconda command prompt (logged in as administrator)

You most also activate (base) environment,if use Anaconda Prompt it will do it automatic.
Eg here i use Minicona and do i manuel.

G:\miniconda3
λ cd Scripts\

G:\miniconda3\Scripts
λ activate.bat

(base) G:\miniconda3\Scripts
λ cd ..

(base) G:\miniconda3
λ conda -V
conda 22.11.1

(base) G:\miniconda3
λ pip -V
pip 22.3.1 from G:\miniconda3\lib\site-packages\pip (python 3.9)

The important part here is that (base) environment is now activate.
I do not use (base) envriomty,but my own.

Also when install jupyter-labextension it need Node.js.

conda install -c conda-forge ipympl
conda install nodejs
jupyter labextension install @jupyter-widgets/jupyterlab-manager
jupyter labextension install jupyter-matplotlib

Thank you for your reply. The shortcut for "Anaconda Prompt" on my machine includes the "activate.bat" command, in full it is:
%windir%\System32\cmd.exe "/K" C:\Users\ricar\anaconda3\Scripts\activate.bat C:\Users\ricar\anaconda3
and I have already issued the command "conda install nodejs"