--- a/src/pyams_content/component/association/interfaces.py	Tue Nov 27 15:37:24 2018 +0100
+++ b/src/pyams_content/component/association/interfaces.py	Tue Nov 27 15:37:41 2018 +0100
@@ -12,18 +12,13 @@
 
 __docformat__ = 'restructuredtext'
 
+from zope.annotation.interfaces import IAttributeAnnotatable
+from zope.container.constraints import containers, contains
+from zope.container.interfaces import IOrderedContainer
+from zope.interface import Attribute, Interface
+from zope.schema import Bool, Choice
 
-# import standard library
-
-# import interfaces
 from pyams_content.component.paragraph.interfaces import IBaseParagraph
-from zope.annotation.interfaces import IAttributeAnnotatable
-from zope.container.interfaces import IOrderedContainer
-
-# import packages
-from zope.container.constraints import containers, contains
-from zope.interface import Interface, Attribute
-from zope.schema import Bool, Choice
 
 from pyams_content import _