move away from flit

[ddkohler]

@untzag :

I believe we must move away from flit and use setuptools instead.
Flit does not support data files [1] which means we will never be able to distribute .desktop and .bat files and place them in the appropriate place for the operating system to use.
[1] pypa/flit#358

[ddkohler]

@untzag

Potentially relevant
https://github.com/conda/menuinst/wiki

[ddkohler]

@kameyer226

Have you looked at Yarn?

[kameyer226]

No, I only heard of it, and I may have tried something with it a while back but not enough for a real look.

[ksunden]

to be clear, @kameyer226, dan was transferring over your own comment there, not asking you the question... that said, yarn is not relevant here, that is a package manager for javascript, not python.

[kameyer226]

I wonder if there is an actual term for that kind of a mea culpa