Hi,

I’m working with Pythran (http://github.com/serge-sans-paille/pythran), a Python/Numpy to C++ transpiler, which of course supports only a subset of Python (in particular not all the crazy cool Python stuffs stupid for performance). With Pythran, you can prototype in Python/Numpy and get very efficient C++ which does not use the Python interpreter.

We were thinking about the possibility to implement a Julia backend for Pythran, i.e. to be able to transpile the subset of Python/Numpy supported by Pythran in Julia.

The advantage of having such backend would be:

- people coding in Python could start to use Julia with nearly no code modification (which would help them to then really use Julia).
- most numerical kernels of Python codes could be translated in Julia.

Under the hood, Pythran developers wrote a clone of Numpy in C++. Doing the same in Julia would be the most difficult task to implement this Julia backend for Pythran.

So my question is: do you think it would be possible and doable to implement a clone of Numpy in Julia (at least the core of the API, since Numpy API is large). To be clearer, the Numpy clone has to be written only in Julia and has be able to return what the real Numpy function would return (it’s slightly more complicated than that in terms of types, as we can see for example with Cupy, another Numpy clone, but anyway).

I guess it’s a huge work, but I also guess there are equivalents of basically all Numpy functions in Julia, so I would be interested to have points of view of people knowing Julia well.