Aren’t now, “will be” in a future version. So the can will be kicked down the road as many generations of devs as needed until no one cares any longer.
So, they remove it in 12 months and your code wasn't ready for the change, and people mock you for having not been prepared by updating your code. The Python people have told you to remove it, so nobody will have any sympathy for you if you don't do it. As you demonstrated, people are sticklers for quoting exact wording when it comes to criticizing others.
Has anything in Python been removed in 12 months? TestCase.assertEquals was deprecated in Python 3.2 (February 2011) and was finally removed in Python 3.12 (October 2023). And that was 12 years for just a simple rename from "assertEquals" to "assertEqual".