I guess. I just felt like this subverse could need some things that make you go "neat, maybe I'll look into this field some day".

To be fair, auto is very different from what Python does. Python has dynamic typing, meaning the types are determined by runtime. auto still is statically typed, it simply infers the type at compile time (and thus can still do static type checking).

D can do dynamic typing though with the help of std.variant, but it's only something you should do when you know what you're doing.

Please do! D desperately needs a good GUI library (Gtk doesn't count), and Qt would definitely be fantastic!

You should see if you can help out here: https://github.com/w0rp/dqt

My current tool of choice is D. The native speed, static type system, quick compilation times and package manager are great. Built in syntax for unittests gives you no excuse to not write them whenever you can, and it actually makes you think about your code, which I very much enjoy. It's still lacking in some respects such as the general ecosystem; for example, there isn't really a good command line parsing module (and the one in the standard library is not very idiomatic or nice to use).

That's why I sometimes fall back on Python for quick&dirty jobs, but for anything bigger than a few files, I'll rely on D.