Problem swig function

Hello Users,

 

I have implemented C++ code of custom block. After I have used swig because I need to use my C++ functions in my python code generate by GNU Radio 3.8.

I have the following error when I try to run my python code :  AttributeError: ‘module’ object had no attribute ‘className_swigregister’.

 

Where I need to develop this function please ? And what does it doing ?

 

Thanks for your help.

 

Best regards.

 

Fred