http://sn.1w6.org/file/clacke-20170720T102023-ezh8whw.html

https://social.heldscal.la/url/635930

Actually more like 2, as Cython isn't a Python implementation. So, they're talking about Tauthon and PyPy.

I'm not so sure about Tauthon -- There hasn't been much activity since the original work, even though a new 3.x version is out which presumably has features that could be backported (pathlib.Path().resolve() now has a strict parameter which, when False, makes it act like normpath() instead of abspath() yaay!).

But then they're also forgetting a newly launched Python implementation that decided to go with 2.x even though 3.x has been out for a decade:

- https://github.com/google/grumpy

Nobody knows how long any Google project is going to be around, but Grumpy is alive and kicking, and I wouldn't be surprised if enough commercial users tie themselves to it to want to keep it alive.

And for some reason they didn't mention:

- http://www.jython.org/

There's a 3.x branch somewhere, but it's not in the official Mercury repo, and even though 2.7.0 was back in 2015, 2.7.1 is under active development with commits almost every week.

!python