I don't believe that "from __future__" is the future-proofing you think it is, they just named it that way to be cute - a hypothetical 3.19 version couldn't even use it, since it's just a normal python import
$ python3.13 -c 'from __future__ import awesome_feature'
File "<string>", line 1
SyntaxError: future feature awesome_feature is not defined
Anyway, I'd guess what they intend is
try:
from __future__ import fever_dream
except SyntaxError:
fever_dream = None
I was responding to the "Python does none of that" by pointing out that Python does indeed have features to help introduce new capabilities in a thoughtful way - I know it's not the same thing as something like conditional imports.