diff --git a/earthaccess/api.py b/earthaccess/api.py
index 678698b0..3ce302eb 100644
--- a/earthaccess/api.py
+++ b/earthaccess/api.py
@@ -373,6 +373,6 @@ def in_us_west_2() -> str:
     if earthaccess.__store__._running_in_us_west_2() is True:
         return "You are running in AWS region 'us-west-2'"
     else:
-        raise ValueError('Your instance is not running inside the'
-                             ' AWS us-west-2 region.'
-                             ' You will not be able to directly access NASA Earthdata S3 buckets')
+        raise ValueError("Your instance is not running inside the"
+                             " AWS us-west-2 region."
+                             " You will not be able to directly access NASA Earthdata S3 buckets.")
diff --git a/earthaccess/store.py b/earthaccess/store.py
index e0a3624c..534896b9 100644
--- a/earthaccess/store.py
+++ b/earthaccess/store.py
@@ -141,7 +141,7 @@ def _own_s3_credentials(self, links: List[Dict[str, Any]]) -> Union[str, None]:
         return None
 
     def _running_in_us_west_2(self) -> bool:
-        if (botocore.session.get_session().get_config_variable('region') == 'us-west-2'):
+        if (botocore.session.get_session().get_config_variable("region") == "us-west-2"):
             return True
         else:
             return False