I've spent untold hours-- perhaps twelve?-- in the past two days trying to get Nvidia's "DIGITS" tool working, as I'd mentioned here. I hate to sink such a staggering cost, but I eventually had to draw the line: I simply can not get it running. I documented everything I tried in this repository.

The lessons here are that Python is an absolute crap development environment, especially with regards to how it handles dependencies and libraries, and that these machine learning libraries have absolutely no professional rigor behind them at all.

I once worked with data scientists at my employer, and while a lot of them were extraordinary smart, they threw together code with Scotch tape and glue. I get the exact same impression from "Caffe" and "DIGITS".