This is kind of a work in progress, but shows how you can wrap the raytracing library and call it from Python.
See examples/raytrace.ipynb for a Jupyter notebook showing an example of usage.
Install the C library sph_raytrace first, from https://github.com/Astrokiwi/sph_raytrace.
Clone the repo
Modify lib_args and inc_args to point to where you installed the library. Also make sure you have LD_LIBRARY_PATH set correctly.
Then pip install . should work. If not, try make first.