Naive Bayes: Fix deprecated calling np.sum with generator

Author: janezd

Orange/classification/naive_bayes.py

@@ -57,9 +57,10 @@ def predict_storage(self, data):
                 np.log(self.class_prob) +
                 np.array([np.zeros_like(self.class_prob)
                           if isnan(ins.x).all() else
-                          np.sum(attr_prob[:, int(attr_val)]
-                                 for attr_val, attr_prob in zip(ins, self.log_cont_prob)
-                                 if not isnan(attr_val))
+                          np.sum([attr_prob[:, int(attr_val)]
+                                  for attr_val, attr_prob in
+                                  zip(ins, self.log_cont_prob)
+                                  if not isnan(attr_val)], axis=0)
                           for ins in data]))
         probs /= probs.sum(axis=1)[:, None]
         values = probs.argmax(axis=1)