Author also puts codes on r/learnpython so course is effectively free on a monthly basis. Maybe he’ll start posting here, too. Here is last months [post](2,000 free sign ups available for the "Automate the Boring Stuff with Python" online course. (June 2023) https://reddit.com/r/learnpython/comments/140iolc/2000_free_sign_ups_available_for_the_automate_the/)
There is now :)