diff --git a/tools/data_process.py b/tools/data_process.py
index d55fe768..103011f6 100644
--- a/tools/data_process.py
+++ b/tools/data_process.py
@@ -14,6 +14,7 @@
 """
 # coding=utf-8 
 #!/usr/bin/env python
+
 import re
 import pickle
 import png