PEP 8 nits in json package
diff --git a/Lib/json/tool.py b/Lib/json/tool.py
index cbd258c..daedbb5 100644
--- a/Lib/json/tool.py
+++ b/Lib/json/tool.py
@@ -8,6 +8,7 @@
     }
     $ echo '{ 1.2:3.4}' | python -mjson.tool
     Expecting property name: line 1 column 2 (char 2)
+
 """
 import sys
 import json