Python extending functions from C/C++

References
[1] https://docs.python.org/3/library/ctypes.html

https://cython.readthedocs.io/en/latest/src/tutorial/cython_tutorial.html
https://opensourceforu.com/2010/05/extending-python-via-shared-libraries/
https://en.wikibooks.org/wiki/Python_Programming/Extending_with_C%2B%2B