The thing about Python is that it’s ugly, forces you to code in a certain way and, most important factor there, is slow as a snail compared to other languages, even scripting ones like Lua. Are there any non-Python deep learning frameworks around that are in active development? I mean, there’s Torch (which is Lua, so good) but from what I’ve looked it’s abandoned in favor of PyTorch which is Python (bleh).

Preferably something either for Lua or .NET/Java – maybe not as fast as C/C++ would be but faster than python (blergh) and still allows for high productivity without worrying of random crashes because of some corrupted pointer.