Sounds like http://lucumr.pocoo.org/2015/5/27/rust-for-pythonistas/ is a thing you'll want to read. It's from right when 1.0 was released, so some things may have improved in the meantime, but given our backwards compatibility guarantees, nothing should be flat-out wrong.

And some more recent writing from him as well: https://blog.sentry.io/2016/10/19/fixing-python-performance-...