I just finished the challenge, but I received the success message while missing the parenthesis in the numbers = lotto_numbers() line, the Script Output window showed an error, thats how I realized that something was wrong.
Once I put the parenthesis, the output was correct showing the list.
moderator: Thanks for reporting! You're right. It was noticed in support a while back. An uncommon issue to butt up against, and as it's a false positive they're seen as lower priority. Keeping it at a lower priority, but will add your report to it!
update: Fixed in dev. Still not perfect but a much tighter test. Tougher for me, as this course is very different than many of our others. But, got the hang of it a bit more so I may tackle some other Python ones. Should be up in prod later this week!