--- a/src/pyams_utils/encoding.py	Tue Jun 18 16:53:34 2019 +0200
+++ b/src/pyams_utils/encoding.py	Wed Jun 26 10:39:34 2019 +0200
@@ -10,20 +10,20 @@
 # FOR A PARTICULAR PURPOSE.
 #
 
+"""PyAMS_utils.encoding module
+
+This module defines a vocabulary of available encodings, as well as an "encoding" field.
+"""
+
 __docformat__ = 'restructuredtext'
 
-
-# import standard library
+from zope.interface import implementer
+from zope.schema import Choice
+from zope.schema.interfaces import IChoice
+from zope.schema.vocabulary import SimpleTerm, SimpleVocabulary
 
-# import interfaces
-from zope.schema.interfaces import IChoice
-
-# import packages
 from pyams_utils.request import check_request
 from pyams_utils.vocabulary import vocabulary_config
-from zope.interface import implementer
-from zope.schema import Choice
-from zope.schema.vocabulary import SimpleTerm, SimpleVocabulary
 
 from pyams_utils import _