Add Python cffi example

[messense]

https://cffi.readthedocs.io/en/latest/

[shepmaster]

Do you have any feedback on why one would prefer cffi vs ctypes? What use cases is one suited for compared to the other?

[shepmaster]

Additionally, would you suggest using the "API" layer or the "ABI" layer?

[messense]

cffi supports PyPy and it does not link to libpython so it's easier to use threads.

API layer obviously, here is a setuptools/wheel/cffi extension which supports Rust https://github.com/getsentry/milksnake

[Delanii]

+1