[Haskell-beginners] haskell + python numpy

Hello, I would like to use some python code in order to do my computation with haskell. The idea is to use python and all it's numrical stack in some places, until I find the time to replace the python code by some haskell code. what I will do is read the data from hdf5 with bindings-hdf5 in haskell obtain a Storable for all my data images then I would like to create a python object which will use these data in order to generate in return another array. get back this array and put it into another hdf5 file. Indeed I want to do this with the pipes library. I would like to know if someone have some code examples for this kind of use case. interfacing haskell with python numpy object back and forth. thanks for your help Frederic