diff --git a/RELEASE.md b/RELEASE.md
index d6db74f39c4c914b8e8dc2123207716f09074544..2ae9acea8daecde92a580a079422ae629d62576a 100644
--- a/RELEASE.md
+++ b/RELEASE.md
@@ -14,7 +14,7 @@
   * 新增**阅读理解Fine-tune任务**和**回归Fine-tune任务**
   * 新增多指标评测
   * 优化predict接口
-  
+
 
 # PaddleHub v1.1.2
 
diff --git a/paddlehub/common/lock.py b/paddlehub/common/lock.py
index a1e6b4270175854f38d3b4259248f653b823ecb8..c5461ea8dfe95dd1153a8d862235332ac6286219 100644
--- a/paddlehub/common/lock.py
+++ b/paddlehub/common/lock.py
@@ -23,4 +23,3 @@ class Lock(object):
 
 
 lock = Lock().get_lock()
-