diff --git a/python/paddle/fluid/inferencer.py b/python/paddle/fluid/inferencer.py
index 21277cb493881562ce3565da4bcbc0e97dafc71f..7b5eed86e002b335c05d826fd3edd24bb84088bd 100644
--- a/python/paddle/fluid/inferencer.py
+++ b/python/paddle/fluid/inferencer.py
@@ -12,10 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-
-__all__ = [
-    'Inferencer',
-]
+__all__ = ['Inferencer', ]
 
 
 class Inferencer(object):
diff --git a/python/paddle/fluid/params.py b/python/paddle/fluid/params.py
index 8d9d8f213400d66426fee4a29d9b6644906e7ef5..a5d257e53a2958acd1b8f6ef29d0f9f531b36678 100644
--- a/python/paddle/fluid/params.py
+++ b/python/paddle/fluid/params.py
@@ -14,9 +14,7 @@
 
 from . import core
 
-__all__ = [
-    'Params',
-]
+__all__ = ['Params', ]
 
 
 class Params(object):