--- a/src/pyams_portal/zmi/portlet.py	Wed Jun 20 18:13:19 2018 +0200
+++ b/src/pyams_portal/zmi/portlet.py	Wed Jun 20 18:13:36 2018 +0200
@@ -9,10 +9,6 @@
 # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
 # FOR A PARTICULAR PURPOSE.
 #
-from z3c.form.interfaces import INPUT_MODE
-
-from pyams_form.help import FormHelp
-from pyams_zmi.layer import IAdminLayer
 
 __docformat__ = 'restructuredtext'
 
@@ -25,9 +21,12 @@
     IPortletSettings, IPortletRendererSettings
 from pyams_skin.layer import IPyAMSLayer
 from pyams_zmi.interfaces import IPropertiesEditForm
+from pyams_zmi.layer import IAdminLayer
+from z3c.form.interfaces import INPUT_MODE
 
 # import packages
 from pyams_form.form import ajax_config
+from pyams_form.help import FormHelp
 from pyams_pagelet.pagelet import pagelet_config
 from pyams_portal.zmi.widget import PortletRendererFieldWidget
 from pyams_skin.event import get_json_widget_refresh_event