diff --git a/demo/lac/lac_demo.py b/demo/lac/lac_demo.py
index d923d5ecb8786312ea107eba61820aa77a3c022b..aeb311154e1473f7a9e49d4f4df9e984b8a0c731 100644
--- a/demo/lac/lac_demo.py
+++ b/demo/lac/lac_demo.py
@@ -19,10 +19,10 @@ if __name__ == "__main__":
     results = lac.lexical_analysis(data=inputs)
     for result in results:
         if six.PY2:
-            print(json.dumps(
-                result['word'], encoding="utf8", ensure_ascii=False))
-            print(json.dumps(
-                result['tag'], encoding="utf8", ensure_ascii=False))
+            print(
+                json.dumps(result['word'], encoding="utf8", ensure_ascii=False))
+            print(
+                json.dumps(result['tag'], encoding="utf8", ensure_ascii=False))
         else:
             print(result['word'])
             print(result['tag'])
diff --git a/demo/senta/senta_demo.py b/demo/senta/senta_demo.py
index 07446a86d1d02d77c41ae76434a8574ef1ffd7ca..328517d306069728dd523343594f6930f2aa69ef 100644
--- a/demo/senta/senta_demo.py
+++ b/demo/senta/senta_demo.py
@@ -21,7 +21,7 @@ if __name__ == "__main__":
         results[index]["text"] = text
     for index, result in enumerate(results):
         if six.PY2:
-            print(json.dumps(
-                results[index], encoding="utf8", ensure_ascii=False))
+            print(
+                json.dumps(results[index], encoding="utf8", ensure_ascii=False))
         else:
             print(results[index])