Custom Constraint For Maya 2009

[anuska]

Hello,

I want to create a custom constraint for Maya 2009 written in Python.
I have found that I can make it by using the classes MPxConstraintCommand and MPxConstraint and there is an
example called geometrySurfaceConstraint written in C++. I have taken this example and i have tryed to translate it
into python without any success.

Has anybody manage it? I'd like to know if i'm doing something wrong or if it has to done in C++.

Thanks.