The reason I don't have friends is because I embed Python code in C++, instead of using pybind like the Linux gods intended us to 😅
If you want to load data from Pandas DataFrame in a C++, I can put some examples on my Github.

Python 2 or Python 3

We embed Python 2 in our code...

@Demolishun Python3 :)

@NickyBones blasphemer!!!

Interpreted languages in my embedded system????

@LotsOfCaffeine Not really in the system. It's only for testing the accuracy - I use it to load data stored in Python-packaged files.

@GeorgeBool I used the basic (C style) PyObject interface. I can't say anything about performance, and I only used it to load fairly basic types - vectors of floats, strings and such.
I was actually trying to avoid having to bind objects.