A determined recruiter could easily search for "run a python program online" and paste the program here to get the author's email address:

https://www.online-python.com

(Yes, it has numpy installed.)

> Recruiters who do contact me will be named and shamed publicly.

I mean, if I matter that much to a recruiter and that recruiter knows enough to run the program, I might be interested in what they have to say.

I stumbled across this and thought it was pretty great, hopefully a useful reference for others :)

This just made my morning!