SEMCAD TypeError When Using Python

Hello,
I'm using Semcad X Light. I have no problem using the CreateSkinBody command. With a sequence of circular arcs, I can create a model profile which is obtained from a cutting tool. If I try to do the following using Python I receive the following message:
s=SEMCAD.model.CreateSkinBody(ProfileList)
TypeError: No registered converter was able to extract a C++ pointer to type class api::CBody from this Python object of type Entity >>>
Using the circles I have exhausted all possibilities I can think of. Thanks for those that can help.
