diff --git a/passerelle_imio_ia_delib/models.py b/passerelle_imio_ia_delib/models.py
index 6dc0bcd..2a7641b 100644
--- a/passerelle_imio_ia_delib/models.py
+++ b/passerelle_imio_ia_delib/models.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 # passerelle-imio-ia-delib - passerelle connector to IA DELIB IMIO PRODUCTS.
 # Copyright (C) 2016  Entr'ouvert
@@ -172,4 +172,4 @@ class IImioIaDelib(BaseResource):
                                               creationData))
             return new_point
         else:
-            raise ValueError('createItem : request body!')
+            raise ValueError("createItem : request body!")
diff --git a/passerelle_imio_ia_delib/soap.py b/passerelle_imio_ia_delib/soap.py
index ed23122..bcf1df3 100644
--- a/passerelle_imio_ia_delib/soap.py
+++ b/passerelle_imio_ia_delib/soap.py
@@ -1,3 +1,6 @@
+#! /usr/bin/env python3
+# -*- coding: utf-8 -*-
+
 # Passerelle - uniform access to data and services
 # Copyright (C) 2015  Entr'ouvert
 #
@@ -19,8 +22,8 @@
 
 
 import requests
-import StringIO
 
+from io import StringIO
 from suds.client import Client
 from suds.transport.http import HttpAuthenticated
 from suds.transport import Reply
diff --git a/setup.py b/setup.py
index 8af93ac..a80290d 100644
--- a/setup.py
+++ b/setup.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 # -*- coding: utf-8 -*-
 
 import glob
@@ -7,6 +7,7 @@ import re
 import subprocess
 import sys
 
+from io import open
 from setuptools.command.install_lib import install_lib as _install_lib
 from distutils.command.build import build as _build
 from distutils.command.sdist import sdist
@@ -42,7 +43,7 @@ def get_version():
 
 
 class compile_translations(Command):
-    description = 'compile message catalogs to MO files via django compilemessages'
+    description = u'compile message catalogs to MO files via django compilemessages'
     user_options = []
 
     def initialize_options(self):
@@ -92,6 +93,7 @@ setup(
         'Operating System :: OS Independent',
         'Programming Language :: Python',
         'Programming Language :: Python :: 2',
+        'Programming Language :: Python :: 3.5.3',
     ],
     install_requires=['django>=1.7, <1.8',
         ],