The first problem you came across is the same with https://github.com/pdollar/coco/issues/14 178, which is caused by forgetting make.(The cython was not compiled.)


The second problem is that this package is not in the path your python script would search in.

You may solve this running the setup.py in PythonAPI folder to copy this package to your pip folder.
Or you can add such code in your script```
import sys
sys.path.append(“The path of PythonAPI folder”)