diff --git a/sco_utils.py b/sco_utils.py
index eb9f86ca..7c946d17 100644
--- a/sco_utils.py
+++ b/sco_utils.py
@@ -32,7 +32,6 @@ import os
 import sys
 import copy
 import re
-
 import bisect
 import types
 import numbers
@@ -41,6 +40,10 @@ import urllib2
 import xml.sax.saxutils
 import time
 import datetime
+import json
+
+# XML generation package (apt-get install jaxml)
+import jaxml
 
 try:
     import six
@@ -52,21 +55,11 @@ except ImportError:
 
 from PIL import Image as PILImage
 
-# XML generation package (apt-get install jaxml)
-import jaxml
-
-import json
-
 from VERSION import SCOVERSION
 import VERSION
 
 from SuppressAccents import suppression_diacritics
-
-# from sco_exceptions import *
-# from sco_permissions import *
-from TrivialFormulator import TrivialFormulator, TF, tf_error_message
-from notes_log import log, logCallStack
-
+from notes_log import log
 from sco_codes_parcours import NOTES_TOLERANCE, CODES_EXPL
 
 # ----- CALCUL ET PRESENTATION DES NOTES