--- a/src/pyams_utils/container.py	Tue Jun 18 16:53:34 2019 +0200
+++ b/src/pyams_utils/container.py	Wed Jun 26 10:39:34 2019 +0200
@@ -10,22 +10,22 @@
 # FOR A PARTICULAR PURPOSE.
 #
 
+"""PyAMS_utils.container module
+
+This module provides several classes, adapters and functions about containers.
+"""
+
 __docformat__ = 'restructuredtext'
 
-
-# import standard library
-
-# import interfaces
-from zope.container.interfaces import IContainer, IContained
+from BTrees.OOBTree import OOBTree
+from persistent.list import PersistentList
+from pyramid.threadlocal import get_current_registry
+from zope.container.interfaces import IContained, IContainer
+from zope.container.ordered import OrderedContainer
 from zope.lifecycleevent.interfaces import IObjectMovedEvent
 from zope.location.interfaces import ISublocations
 
-# import packages
-from BTrees.OOBTree import OOBTree
-from persistent.list import PersistentList
-from pyams_utils.adapter import adapter_config, ContextAdapter
-from pyramid.threadlocal import get_current_registry
-from zope.container.ordered import OrderedContainer
+from pyams_utils.adapter import ContextAdapter, adapter_config
 
 
 class BTreeOrderedContainer(OrderedContainer):