--- a/src/pyams_utils/vocabulary.py	Wed Jun 12 20:06:45 2019 +0200
+++ b/src/pyams_utils/vocabulary.py	Fri Jun 14 12:41:06 2019 +0200
@@ -10,21 +10,22 @@
 # FOR A PARTICULAR PURPOSE.
 #
 
+"""PyAMS_utils.vocabulary module
+
+This module is used to handle vocabularies.
+"""
+
 __docformat__ = 'restructuredtext'
 
-
-# import standard library
 import logging
-logger = logging.getLogger('PyAMS (utils)')
 
 import venusian
-
-# import interfaces
+from zope.interface import directlyProvides
 from zope.schema.interfaces import IVocabularyFactory
+from zope.schema.vocabulary import getVocabularyRegistry
 
-# import packages
-from zope.interface import directlyProvides
-from zope.schema.vocabulary import getVocabularyRegistry
+
+logger = logging.getLogger('PyAMS (utils)')
 
 
 class vocabulary_config: