minor...

modules/deeplearning/icing_cnn.py

@@ -730,6 +730,8 @@ class IcingIntensityNN:
         self.test_labels = labels
         self.test_preds = preds
 
+        self.h5f_tst.close()
+
     def run(self, filename_trn, filename_tst):
         with tf.device('/device:GPU:'+str(self.gpu_device)):
             self.setup_pipeline(filename_trn, filename_tst)