Where do I find output from debug printing?

Programming languages Python
#1

I’d like to be able to print debug information. I’ve seen the line:

To debug: print(“Debug messages…”, file=sys.stderr)

So I do that. I don’t know where to access this sys.stderr though to read the results. I’m running Windows, and my Googlings seem to only refer to Linux.

Feeling like a real noob right now.

#2

If you run your code into codingame IDE, it should print someting in the console (in the bottom left part of the page).

If you run your code locally, it will be printed in the console directly.