--- a/src/pyams_content/component/paragraph/keypoint.py	Wed Dec 12 11:12:59 2018 +0100
+++ b/src/pyams_content/component/paragraph/keypoint.py	Wed Dec 12 11:14:55 2018 +0100
@@ -12,29 +12,22 @@
 
 __docformat__ = 'restructuredtext'
 
+from zope.schema.fieldproperty import FieldProperty
 
-# import standard library
-
-# import interfaces
+from pyams_content.component.paragraph import BaseParagraph, BaseParagraphContentChecker, BaseParagraphFactory
 from pyams_content.component.paragraph.interfaces import IParagraphFactory
-from pyams_content.component.paragraph.interfaces.keypoint import IKeypointsParagraph, KEYPOINTS_PARAGRAPH_TYPE, \
-    KEYPOINTS_PARAGRAPH_RENDERERS, KEYPOINTS_PARAGRAPH_NAME
-from pyams_content.features.checker.interfaces import IContentChecker, MISSING_VALUE, MISSING_LANG_VALUE
+from pyams_content.component.paragraph.interfaces.keypoint import IKeypointsParagraph, KEYPOINTS_PARAGRAPH_NAME, \
+    KEYPOINTS_PARAGRAPH_RENDERERS, KEYPOINTS_PARAGRAPH_TYPE
+from pyams_content.features.checker.interfaces import IContentChecker, MISSING_LANG_VALUE, MISSING_VALUE
+from pyams_content.features.renderer import RenderersVocabulary
 from pyams_i18n.interfaces import II18n, II18nManager, INegotiator
-
-# import packages
-from pyams_content.component.paragraph import BaseParagraph, BaseParagraphContentChecker, BaseParagraphFactory
-from pyams_content.features.renderer import RenderersVocabulary
 from pyams_utils.adapter import adapter_config
 from pyams_utils.factory import factory_config
-from pyams_utils.registry import utility_config, get_utility
+from pyams_utils.registry import get_utility, utility_config
 from pyams_utils.traversing import get_parent
 from pyams_utils.vocabulary import vocabulary_config
-from zope.interface import implementer
-from zope.schema.fieldproperty import FieldProperty
 
 
-@implementer(IKeypointsParagraph)
 @factory_config(provided=IKeypointsParagraph)
 class KeypointsParagraph(BaseParagraph):
     """Key points paragraph"""