diff --git a/kfet/autocomplete.py b/kfet/autocomplete.py
index bce0210a..e4203bd1 100644
--- a/kfet/autocomplete.py
+++ b/kfet/autocomplete.py
@@ -1,3 +1,9 @@
+# -*- coding: utf-8 -*-
+
+from __future__ import (absolute_import, division,
+                        print_function, unicode_literals)
+from builtins import *
+
 from django.shortcuts import render
 from django.http import Http404
 from django.db.models import Q
diff --git a/kfet/backends.py b/kfet/backends.py
index 4eea72b5..6f917310 100644
--- a/kfet/backends.py
+++ b/kfet/backends.py
@@ -1,3 +1,9 @@
+# -*- coding: utf-8 -*-
+
+from __future__ import (absolute_import, division,
+                        print_function, unicode_literals)
+from builtins import *
+
 import hashlib
 
 from django.contrib.auth.models import User, Permission
diff --git a/kfet/consumers.py b/kfet/consumers.py
index fc67a512..dcd69bdf 100644
--- a/kfet/consumers.py
+++ b/kfet/consumers.py
@@ -1,3 +1,9 @@
+# -*- coding: utf-8 -*-
+
+from __future__ import (absolute_import, division,
+                        print_function, unicode_literals)
+from builtins import *
+
 from channels import Group
 from channels.generic.websockets import JsonWebsocketConsumer
 
diff --git a/kfet/context_processors.py b/kfet/context_processors.py
index 1bd8052c..ef4f2e64 100644
--- a/kfet/context_processors.py
+++ b/kfet/context_processors.py
@@ -1,3 +1,9 @@
+# -*- coding: utf-8 -*-
+
+from __future__ import (absolute_import, division,
+                        print_function, unicode_literals)
+from builtins import *
+
 from django.contrib.auth.context_processors import PermWrapper
 
 def auth(request):
diff --git a/kfet/decorators.py b/kfet/decorators.py
index 5d60d58e..9af9247f 100644
--- a/kfet/decorators.py
+++ b/kfet/decorators.py
@@ -1,3 +1,9 @@
+# -*- coding: utf-8 -*-
+
+from __future__ import (absolute_import, division,
+                        print_function, unicode_literals)
+from builtins import *
+
 from django_cas_ng.decorators import user_passes_test
 
 def kfet_is_team(user):
diff --git a/kfet/forms.py b/kfet/forms.py
index 64c39bb2..0ec3b114 100644
--- a/kfet/forms.py
+++ b/kfet/forms.py
@@ -1,3 +1,9 @@
+# -*- coding: utf-8 -*-
+
+from __future__ import (absolute_import, division,
+                        print_function, unicode_literals)
+from builtins import *
+
 from decimal import Decimal
 from django import forms
 from django.core.exceptions import ValidationError
diff --git a/kfet/middleware.py b/kfet/middleware.py
index c6faf6c5..50e5d6b7 100644
--- a/kfet/middleware.py
+++ b/kfet/middleware.py
@@ -1,3 +1,9 @@
+# -*- coding: utf-8 -*-
+
+from __future__ import (absolute_import, division,
+                        print_function, unicode_literals)
+from builtins import *
+
 from kfet.backends import KFetBackend
 
 class KFetAuthenticationMiddleware(object):
diff --git a/kfet/models.py b/kfet/models.py
index ce337785..c59be9e3 100644
--- a/kfet/models.py
+++ b/kfet/models.py
@@ -1,3 +1,9 @@
+# -*- coding: utf-8 -*-
+
+from __future__ import (absolute_import, division,
+                        print_function, unicode_literals)
+from builtins import *
+
 from django.db import models
 from django.core.urlresolvers import reverse
 from django.core.exceptions import PermissionDenied, ValidationError
diff --git a/kfet/routing.py b/kfet/routing.py
index a1f1c676..f5fe4544 100644
--- a/kfet/routing.py
+++ b/kfet/routing.py
@@ -1,3 +1,9 @@
+# -*- coding: utf-8 -*-
+
+from __future__ import (absolute_import, division,
+                        print_function, unicode_literals)
+from builtins import *
+
 from channels.routing import route, route_class
 from kfet import consumers
 
diff --git a/kfet/templatetags/kfet_tags.py b/kfet/templatetags/kfet_tags.py
index 799554eb..bb8bce9f 100644
--- a/kfet/templatetags/kfet_tags.py
+++ b/kfet/templatetags/kfet_tags.py
@@ -1,3 +1,9 @@
+# -*- coding: utf-8 -*-
+
+from __future__ import (absolute_import, division,
+                        print_function, unicode_literals)
+from builtins import *
+
 from django import template
 from django.utils.html import escape
 from django.utils.safestring import mark_safe
@@ -31,4 +37,5 @@ def highlight_clipper(clipper, q):
 @register.filter()
 def ukf(balance, is_cof):
     grant = is_cof and (1 + Settings.SUBVENTION_COF() / 100) or 1
-    return round(balance * 10 * grant)
+    # float nécessaire car sinon problème avec le round de future.builtins
+    return round(float(balance * 10 * grant))
diff --git a/kfet/tests.py b/kfet/tests.py
index 7ce503c2..03ee6fc6 100644
--- a/kfet/tests.py
+++ b/kfet/tests.py
@@ -1,3 +1,9 @@
+# -*- coding: utf-8 -*-
+
+from __future__ import (absolute_import, division,
+                        print_function, unicode_literals)
+from builtins import *
+
 from django.test import TestCase
 
 # Create your tests here.
diff --git a/kfet/urls.py b/kfet/urls.py
index 5f898d6e..3422c671 100644
--- a/kfet/urls.py
+++ b/kfet/urls.py
@@ -1,3 +1,9 @@
+# -*- coding: utf-8 -*-
+
+from __future__ import (absolute_import, division,
+                        print_function, unicode_literals)
+from builtins import *
+
 from django.conf.urls import url
 from django.contrib.auth.decorators import permission_required
 from kfet import views
diff --git a/kfet/views.py b/kfet/views.py
index f2912160..315a473d 100644
--- a/kfet/views.py
+++ b/kfet/views.py
@@ -1,3 +1,9 @@
+# -*- coding: utf-8 -*-
+
+from __future__ import (absolute_import, division,
+                        print_function, unicode_literals)
+from builtins import *
+
 from django.shortcuts import render, get_object_or_404, redirect
 from django.core.exceptions import PermissionDenied, ValidationError
 from django.core.cache import cache