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moto/s3/models.py

@@ -523,7 +523,10 @@ class LifecycleAndFilter(BaseModel):
 
         for key, value in self.tags.items():
             data.append(
-                {"type": "LifecycleTagPredicate", "tag": {"key": key, "value": value},}
+                {
+                    "type": "LifecycleTagPredicate",
+                    "tag": {"key": key, "value": value},
+                }
             )
 
         return data
@@ -1129,7 +1132,11 @@ class FakeBucket(CloudFormationModel):
 
     @classmethod
     def update_from_cloudformation_json(
-        cls, original_resource, new_resource_name, cloudformation_json, region_name,
+        cls,
+        original_resource,
+        new_resource_name,
+        cloudformation_json,
+        region_name,
     ):
         properties = cloudformation_json["Properties"]
 
@@ -1469,7 +1476,8 @@ class S3Backend(BaseBackend):
             raise MissingKey(key_name)
         self.tagger.delete_all_tags_for_resource(key.arn)
         self.tagger.tag_resource(
-            key.arn, [{"Key": k, "Value": v} for (k, v) in tags.items()],
+            key.arn,
+            [{"Key": k, "Value": v} for (k, v) in tags.items()],
         )
         return key
 
@@ -1481,7 +1489,8 @@ class S3Backend(BaseBackend):
         bucket = self.get_bucket(bucket_name)
         self.tagger.delete_all_tags_for_resource(bucket.arn)
         self.tagger.tag_resource(
-            bucket.arn, [{"Key": key, "Value": value} for key, value in tags.items()],
+            bucket.arn,
+            [{"Key": key, "Value": value} for key, value in tags.items()],
         )
 
     def delete_bucket_tagging(self, bucket_name):

moto/s3/responses.py

@@ -406,8 +406,8 @@ class ResponseObject(_TemplateEnvironmentMixin, ActionAuthenticatorMixin):
             template = self.response_template(S3_BUCKET_CORS_RESPONSE)
             return template.render(cors=cors)
         elif "notification" in querystring:
-            notification_configuration = self.backend.get_bucket_notification_configuration(
-                bucket_name
+            notification_configuration = (
+                self.backend.get_bucket_notification_configuration(bucket_name)
             )
             if not notification_configuration:
                 return 200, {}, ""

moto/s3/utils.py

@@ -98,7 +98,7 @@ def undo_clean_key_name(key_name):
 
 class _VersionedKeyStore(dict):
 
-    """ A simplified/modified version of Django's `MultiValueDict` taken from:
+    """A simplified/modified version of Django's `MultiValueDict` taken from:
     https://github.com/django/django/blob/70576740b0bb5289873f5a9a9a4e1a26b2c330e5/django/utils/datastructures.py#L282
     """