Re: Can anyone connect context to R or python?

[Stanislav Sokolenko <stanislav@sokolenko.net>]

On 2018-10-06 02:06 PM, Aditya Mahajan wrote:

>
> I also want to take this opportunity to express my views on intefacing 
> with external programs. The file based interaction provided by the 
> filter module is okay for small projects but it is not ideal. Slightly 
> better is to use pipes (popen to a REPL) or use FFI (e.g 
> https://adityam.github.io/context-blog/post/interfacing-with-julia), 
> but neither of these is easy to implement and needs to be done on a 
> per-language basis. Henri Menke had a Tugboat article on this as well.
>
> In my opinion, a better long-term option is to write a jupyter client 
> in lua that can be called by context. Then we can easily interface 
> with all languages that provide a jupyter kernel 
> (https://github.com/jupyter/jupyter/wiki/Jupyter-kernels).
>
> The interface of a jupter-client is available here
> https://jupyter-client.readthedocs.io/en/stable/index.html. It seems 
> relatively straight forward (send a JSON message and receive a JSON 
> message). Translating the JSON messages to ConTeXt should also be 
> easy. Is there anyone who wants to play around trying to implement this?
>

I have recently come across the SciLua project 
(http://scilua.org/index.html) which has a built-in LuaJIT client for 
Rserve (http://scilua.org/rclient.html) and may be relevant to the 
discussion. Although it certainly isn't as general as something like 
jupyter, leaning on SciLua may be an easier means of getting access to 
scientific computation with R and basic numerical methods. I am 
personally planning to look into switching from filter to SciLua if it 
means that I can get more efficient data transfer between R and ConTeXt. 
But I'm a ConTeXt and Lua neophyte so I doubt my personal efforts will 
be translatable into something more general like a module.

Stan

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