def _get_train(self):
		s = Scanner(user_file, film_file, train_file)
		return s.get_matrix(), s.get_index()
 def _get_train(self):
     s = Scanner(user_file, film_file, train_file)
     return s.get_matrix(), s.get_index()
	def _get_test(self):
		s = Scanner(user_file, film_file, test_file)
		return s.get_matrix(), s.get_index()
 def _get_test(self):
     s = Scanner(user_file, film_file, test_file)
     return s.get_matrix(), s.get_index()