Support for Python 3.5

[mar10]

I know it is probably too late for this specific feature request, but I wanted to give a friendly feed back anyway:

Assuming that sty is a library that may be used by tool-builders, a dependncy on Python 3.6+ imposes this restriction to those tools as well.
Given that Python 3.5 has an EOL of 2020-09-13 and will probably remain in the wild a bit longer, this makes it harder to to use sty to create a tool that covers all living environments.
I fixed it by wrapping sty with a no-op fallback in this case.

I assume that 3.6 was required in order to use variable annotations, which is a cool feature internally.
However in my opinion it would have been be a better option to have a sty v1.x that supports Python 3.5..3.8 and then drop 3.5 support with sty v2.x.

As I said, may be too late to change this now, but you might consider this in the future?

N.B.
I find the Sty requires Python >= 3.6 a bit hidden, it would be nice to have this more prominent on the front page.
And maybe add the trove classifiers to setup.py

    Programming Language :: Python :: 3.6
    Programming Language :: Python :: 3.7
    Programming Language :: Python :: 3.8

[feluxe]

I dropped 3.5 (early on before sty was used much by others) because 3.7 had much better typing support, which I really think is worth it. And now that 3.5 is EOL I'll rather stick with 3.7 and keep the typing.

>=3.7 is the version range which I decided to maintain indefinitely.

I find the Sty requires Python >= 3.6 a bit hidden, it would be nice to have this more prominent on the front page.
And maybe add the trove classifiers to setup.py

Programming Language :: Python :: 3.6
Programming Language :: Python :: 3.7
Programming Language :: Python :: 3.8

Thanks for this. I'll definitely add it to setup.py :-)