[philzook]

There is an actively developed python to ocaml interop library for purposes quite similar to yours. I have seen demos where ocaml and python are used within the same jupyter notebook

https://signalsandthreads.com/python-ocaml-and-machine-learn...

https://github.com/thierry-martinez/pyml

[short_sells_poo]

Thank you, I'll pass this on. An important feature is zero copy arrays, which seem to be supported.