Progress bar for training

Hi everyone I am experimenting with the Fisher Recognition face module and using Python on a Raspberry. At the part model = cv2.createFisherFaceRecognizer() model.train(images, lables) it just waits there and there is no way to know how long would it take. Yes, I know a raspberry is not a superserver so it will take time even with just a few images, but having some kind of progress bar would be nice. I tried to google for one but to no avail, so I am obliged to recur to the community's good will to help me find a progress bar to the training part of the Fisher Face Recognizer system, and to that I thank beforehand.