With the imminent release of PlainBox 0.5.2 providers with native executables (read: compiled code) are a reality.
Have a look at https://github.com/plainbox-providers/ for two very simple examples. Fork them, star them, share them, edit them, break them.
The final release of PlainBox will be made to pypi, Debian synchronized to Ubuntu. Early builds are already available in our PPA (as soon as the recipe builds finish).
About PlainBox: PlainBox is a toolkit consisting of python3 library,
development tools, documentation and examples. It is targeted at
developers working on testing or certification applications and authors
creating tests for such applications.