--- a/hgext/fastannotate/error.py	Sat Oct 05 10:29:34 2019 -0400
+++ b/hgext/fastannotate/error.py	Sun Oct 06 09:45:02 2019 -0400
@@ -6,8 +6,10 @@
 # GNU General Public License version 2 or any later version.
 from __future__ import absolute_import
 
+
 class CorruptedFileError(Exception):
     pass
 
+
 class CannotReuseError(Exception):
     """cannot reuse or update the cache incrementally"""