Cython n'a pas pu créer un fichier PYD, aucun fichier ou répertoire de ce type
Hopefully this will be useful to others experiencing this error.
After some digging, my problem was due the __init__.py
file in the same directory. This github issue highlights the potential problem.
After removing the __init__.py,
I now get the correct .pyd file in the directory.
Real Raccoon