[jordigh]

Amongst others, the Mercurial devs talked to Guido during Pycon about the huge porting effort towards Python 3 (with little benefit to the hg codebase). Let's not forget that Python itself hosts its code on http://hg.python.org. And during Guido's keynote (which should be online tomorrow) he said his own Dropbox has a huge Python 2.x codebase live on the servers which is difficult to migrate.

He didn't take the decision lightly. These are just two examples, but there's still lots of big Python 2.x uses out there.

If it's any consolation, his keynote started with a big "forbidden" sign over "2.8".

[antocv]

Captain hindsight then to the rescue, py3 shouldnt have existed and a 2.8 should habe been made.