Technically you could by writing a JS function that triggers the PY function and passing the output from the PY function to the JS function, which is then rendered in the console with a console.log message. But yeah, that is total overengineering ;)

Yes, that is the way but yes it needs lots of work, efforts :)

And then how do you feel, if you want to know the value of a variable, by some calculation error, etc.?