diff --git a/waybackpy/exceptions.py b/waybackpy/exceptions.py
index 9924e10..800938f 100644
--- a/waybackpy/exceptions.py
+++ b/waybackpy/exceptions.py
@@ -1,11 +1,13 @@
 # -*- coding: utf-8 -*-
 
 class TooManyArchivingRequests(Exception):
+
     """Error when a single url reqeusted for archiving too many times in a short timespam.
     Wayback machine doesn't supports archivng any url too many times in a short period of time.
     """
 
 class ArchivingNotAllowed(Exception):
+
     """Files like robots.txt are set to deny robot archiving.
     Wayback machine respects these file, will not archive.
     """