Cannot install RAY
Ray for windows is now available...
https://pypi.org/project/ray/
https://docs.ray.io/en/master/installation.html
UPDATE: Ray does support Windows in experimental capacity now!
See Windows installation instructions here:
https://docs.ray.io/en/latest/installation.html#windows-support
Ray does not support Windows:
https://github.com/ray-project/ray/issues/2683
https://github.com/ray-project/ray/issues/631
They propose to use the Windows subsystem for Linux as the most efficient workaround:
https://docs.microsoft.com/en-us/windows/wsl/install-win10