Earlier quoted context omitted.
There's still a lot of existing and new Python 2 code being written. Idealistically we would all be on Python 3, but software is a messy land.
It's been ten years, so it's gone beyond "idealistically".
Re: Show HN: Asynchronous HTTP/2 client for Python 2.7
#61It has not been ten years, as only Python 3.6 and later is considered finalised.