Python is great because it includes an interactive mode for learning the language and quickly testing out code ideas. IPython ...

That’s how to run a Python script in terminal or CMD. It’s a very straightforward process, but it’s extremely handy if you ever want to quickly carry out a bespoke task.

But [Jim’s] Python serial terminal (available in this git repository) allows you to specify multiple devices as command line arguments. You can even use wildcards to monitor every USB connection.