Update yolo_training.py

nets/yolo_training.py

@@ -372,7 +372,7 @@ class Generator(object):
                 targets.append(np.array(y,dtype = np.float32))
                 if len(targets) == self.batch_size:
                     tmp_inp = np.array(inputs)
-                    tmp_targets = np.array(targets)
+                    tmp_targets = targets
                     inputs = []
                     targets = []
                     yield tmp_inp, tmp_targets