diff --git a/core/trainer.py b/core/trainer.py
index 4d4bd7f765e814250be3d2b05a42cef290cfdf65..9694d0d04f9f6809e72b02045ddce11e3bbe30c8 100755
--- a/core/trainer.py
+++ b/core/trainer.py
@@ -196,7 +196,7 @@ class Trainer(object):
                 self._status_processor[context['status']](context)
             else:
                 self.other_status_processor(context)
-        except Exception, err:
+        except Exception as err:
             traceback.print_exc()
             print('Catch Exception:%s' % str(err))
             sys.stdout.flush()