diff --git a/sdk/python/feast/feature_view.py b/sdk/python/feast/feature_view.py
index 561e593172d..f438511866e 100644
--- a/sdk/python/feast/feature_view.py
+++ b/sdk/python/feast/feature_view.py
@@ -494,7 +494,7 @@ def most_recent_end_time(self) -> Optional[datetime]:
         if len(self.materialization_intervals) == 0:
             return None
         return max([interval[1] for interval in self.materialization_intervals])
-    
+
     @property
     def online_store_ttl(self) -> Optional[timedelta]:
         """
@@ -509,6 +509,8 @@ def online_store_ttl(self) -> Optional[timedelta]:
                 ttl_seconds = int(ttl_str)
                 return timedelta(seconds=ttl_seconds)
             except ValueError:
-                raise ValueError(f"Invalid online_store_ttl value '{ttl_str}' in tags. It must be an integer representing seconds.")
+                raise ValueError(
+                    f"Invalid online_store_ttl value '{ttl_str}' in tags. It must be an integer representing seconds."
+                )
         else:
             return None