Created by: anjos

As it is encoded today, despite the C++ class defaults to a True value for this setting, the Python bindings override it with a default False.

The problem is on these bindings piece of code:

PyObject* strip_to_rank = Py_True;

  if (!PyArg_ParseTupleAndKeywords(args, kwds, "|OO", kwlist,
        &use_pinv, &strip_to_rank)) return -1;

  int use_pinv_ = PyObject_IsTrue(use_pinv);
  if (use_pinv_ == -1) return -1;

  int strip_to_rank_ = PyObject_IsTrue(strip_to_rank);
  if (strip_to_rank_ == -1) return -1;

  self->cxx = new bob::learn::linear::FisherLDATrainer(use_pinv_, strip_to_rank_);

If strip_to_rank is not set, it defaults to Py_None, which does not resolve to True, but False.