diff --git a/youtube_dl/extractor/blerp.py b/youtube_dl/extractor/blerp.py
index 4b5ef8475..355daef6e 100644
--- a/youtube_dl/extractor/blerp.py
+++ b/youtube_dl/extractor/blerp.py
@@ -1,10 +1,12 @@
 # coding: utf-8
-
 from __future__ import unicode_literals
 
 import json
 
-from ..utils import strip_or_none, traverse_obj
+from ..utils import (
+    strip_or_none,
+    traverse_obj,
+)
 from .common import InfoExtractor