For anyone looking for a more usable version of C++/Python interop, I can't recommend Cppyy[0] highly enough. You can use any C++ code/libraries from Python without the need to write any bindings. I created an example project here to test it out[1].

0. https://cppyy.readthedocs.io/en/latest/

1. https://github.com/jclay/cppyy-knearestneighbors-example