[zombinedev]

D has quite good multi-dimensional array support, though probably not as flexible as Python. One of the best libraries in this area is ndslice (part of mir-algorithm) - http://docs.algorithm.dlang.io/latest/index.html. See the "Image Processing" example to get a sense of API - http://docs.algorithm.dlang.io/latest/mir_ndslice.html. mir-algorithm is the base for the high-performance glas implementation written in pure D that outperforms libraries with hand-written assembly like OpenBLAS in single-threaded mode (multi-threaded is not yet ready). See http://blog.mir.dlang.io/glas/benchmark/openblas/2016/09/23/.... (Note that this blog post is bit outdated - since then the author rewrote large parts of the library, IIRC.)