confidence value in face recognition opencv3.1.0

edit

there was a bug with the early 3.1 python bindings, you got 2 options:

• update to current 3.2 (but then - please, both opencv main and opencv_contrib)

• hack your current 3.1 version, and recompile:

  remove CV_WRAP here so it simply says: int predict(InputArray src) const;

  this will hide that method from the python interface, but in turn, let you use the desired:

  id, confidence = model.predict(query)