Always nice to see a little piece of python code show up whenever one of these ML blogs get posted to HN. It's becoming, or has become, the lingua franca of this field.
I'm very excited for Tensorflow for Swift, personally. The type system will make development so much more pleasant IMO. Judging by the way things have been lately though, I imagine that by the time TF for Swift is ready I'll be reaching for PyTorch at every opportunity anyways...
I think the fact that Swift has first-class automatic differentiation is an even bigger deal than the fact that it is strongly-typed. Here is an interesting write-up about it...