I guess this is because they all are trained on an intermediate code bases when this was required some times (even at that time the real usage was quite rare).
And now this line is parroting everywhere like a junk DNA :)
I was sure this one was for Python from 3.7 up to 3.10. But it is still here.. But as for 2026 it will not stay forever as it was supposed to - there are 2 PEPs which are suppose to fix it in Python 3.14 - https://peps.python.org/pep-0649/ and https://peps.python.org/pep-0749/