[Wowfunhappy]

^^ Python 2.7 is also available by default on macOS, whereas you have to go out of your way to install Python 3.

[gaius]

... and Debian 9

I’m no Luddite but the simple fact today if you want to reliably deploy and can’t or don’t want to ship a container, Python 2 is the reality.

[rphlx]

FWIW deb9 installs both 3.5 and 2.7 by default.