Make sure you have Python version 3.7.2 or later installed.
To run the server application, open a command terminal, and navigate to the folder where you saved this Python script. Then run:
python3 webex-toolbox.py
You should see this in the terminal:
Listening on http://0.0.0.0:5000...
Open http://0.0.0.0:5000 in a browser.