calculate features FPFH and CVFH with python-pcl

[wisper181]

Thank you for your codebase at first!
Now I try to calculate features FPFH and CVFH with python-pcl
but I get some trouble.
I try just like the code to calcute normals
FPFH like this:

and vfh like this:

but it doesn't work,and I try many ways,but fail.

And I also try to use pclpy
and it is compiling failed on Ubuntu

Is here anyone can help?
How to calculate FOFH and CVFH with python-pcl?
or Whether it is feasible to calculate FOFH and CVFH with python-pcl?
or How to get these pointcloud's features with python?
or any advice can be greatly helpful! 0.0
Thanks in advance!