diff --git a/app/scodoc/bonus_sport.py b/app/scodoc/bonus_sport.py
index aa5a92bfa..625d47193 100644
--- a/app/scodoc/bonus_sport.py
+++ b/app/scodoc/bonus_sport.py
@@ -224,9 +224,9 @@ def bonus_iutam(notes_sport, coefs, infos=None):
     # une seule note
     note_sport = notes_sport[0]
     if note_sport < 10.0:
-        return 0
+        return 0.0
     prc = min((int(2 * note_sport - 20.0) + 2) * 0.25, 5)
-    bonus = infos["moy"] * prc / 100
+    bonus = infos["moy"] * prc / 100.0
     return bonus
 
 
@@ -332,8 +332,8 @@ def bonus_iuto(notes_sport, coefs, infos=None):
         infos["sem"]["date_debut_iso"] > "2013-08-01"
     ):  # changement de regle en aout 2013.
         return bonus
-    coefs = 0
-    coefs_total = 0
+    coefs = 0.0
+    coefs_total = 0.0
     for ue_id in infos["moy_ues"]:
         ue_status = infos["moy_ues"][ue_id]
         coefs_total = coefs_total + ue_status["sum_coefs"]
diff --git a/app/scodoc/imageresize.py b/app/scodoc/imageresize.py
index 252a6f6dc..4afba9e64 100644
--- a/app/scodoc/imageresize.py
+++ b/app/scodoc/imageresize.py
@@ -19,7 +19,7 @@ def ImageScaleH(img_file, W=None, H=90):
     im = PILImage.open(img_file)
     if W is None:
         # keep aspect
-        W = (im.size[0] * H) / im.size[1]
+        W = int((im.size[0] * H) / float(im.size[1]))
     im.thumbnail((W, H), PILImage.ANTIALIAS)
     out_file_str = StringIO()
     im.save(out_file_str, im.format)
diff --git a/app/scodoc/sco_abs.py b/app/scodoc/sco_abs.py
index c05924a66..8b9afa010 100644
--- a/app/scodoc/sco_abs.py
+++ b/app/scodoc/sco_abs.py
@@ -941,7 +941,9 @@ def MonthTableBody(
                 if legend or d == 1:
                     n = 3 - len(legend)  # pad to 3 cars
                     if n > 0:
-                        legend = "&nbsp;" * (n / 2) + legend + "&nbsp;" * ((n + 1) / 2)
+                        legend = (
+                            "&nbsp;" * (n // 2) + legend + "&nbsp;" * ((n + 1) // 2)
+                        )
                 else:
                     legend = "&nbsp;&nbsp;&nbsp;"  # empty cell
                 cc.append(legend)
diff --git a/app/scodoc/sco_apogee_csv.py b/app/scodoc/sco_apogee_csv.py
index e75b6324c..540da23ce 100644
--- a/app/scodoc/sco_apogee_csv.py
+++ b/app/scodoc/sco_apogee_csv.py
@@ -553,7 +553,7 @@ class ApoEtud(dict):
             # print 'note=%s autre_note=%s' % (note, autre_note)
             try:
                 moy_annuelle = (note + autre_note) / 2
-            except:
+            except TypeError:
                 moy_annuelle = ""
             note_str = _apo_fmt_note(moy_annuelle)
 
diff --git a/app/scodoc/sco_archives_etud.py b/app/scodoc/sco_archives_etud.py
index 282ed8704..9193c992b 100644
--- a/app/scodoc/sco_archives_etud.py
+++ b/app/scodoc/sco_archives_etud.py
@@ -141,7 +141,7 @@ def etud_upload_file_form(context, REQUEST, etudid):
         % etud,
         """<p>Le fichier ne doit pas dépasser %sMo.</p>             
          """
-        % (scu.CONFIG.ETUD_MAX_FILE_SIZE / (1024 * 1024)),
+        % (scu.CONFIG.ETUD_MAX_FILE_SIZE // (1024 * 1024)),
     ]
     tf = TrivialFormulator(
         REQUEST.URL0,
diff --git a/app/scodoc/sco_bulletins_json.py b/app/scodoc/sco_bulletins_json.py
index 42293bcc4..cdfed9c7c 100644
--- a/app/scodoc/sco_bulletins_json.py
+++ b/app/scodoc/sco_bulletins_json.py
@@ -203,7 +203,7 @@ def formsemestre_bulletinetud_published_dict(
         ue_status = nt.get_etud_ue_status(etudid, ue["ue_id"])
         try:
             ects_txt = str(int(ue["ects"]))
-        except:
+        except ValueError:
             ects_txt = ""
         u = dict(
             id=ue["ue_id"],
diff --git a/app/scodoc/sco_evaluations.py b/app/scodoc/sco_evaluations.py
index 07a8968ca..e97d67d2f 100644
--- a/app/scodoc/sco_evaluations.py
+++ b/app/scodoc/sco_evaluations.py
@@ -84,9 +84,9 @@ def ListMedian(L):
         raise ValueError("empty list")
     L.sort()
     if n % 2:
-        return L[n / 2]
+        return L[n // 2]
     else:
-        return (L[n / 2] + L[n / 2 - 1]) / 2
+        return (L[n // 2] + L[n // 2 - 1]) / 2
 
 
 # --------------------------------------------------------------------
diff --git a/app/scodoc/sco_photos.py b/app/scodoc/sco_photos.py
index 0b2a7ae92..a8ade73e3 100644
--- a/app/scodoc/sco_photos.py
+++ b/app/scodoc/sco_photos.py
@@ -313,7 +313,7 @@ def save_image(context, etudid, data):
 def scale_height(img, W=None, H=REDUCED_HEIGHT):
     if W is None:
         # keep aspect
-        W = (img.size[0] * H) / img.size[1]
+        W = int((img.size[0] * H) / img.size[1])
     img.thumbnail((W, H), PILImage.ANTIALIAS)
     return img
 
@@ -355,7 +355,9 @@ def copy_portal_photo_to_fs(context, etud, REQUEST=None):
     f = None
     try:
         log("copy_portal_photo_to_fs: getting %s" % url)
-        f = six.moves.urllib.request.urlopen(url, timeout=portal_timeout)  # python >= 2.7
+        f = six.moves.urllib.request.urlopen(
+            url, timeout=portal_timeout
+        )  # python >= 2.7
     except:
         log("download failed: exception:\n%s" % traceback.format_exc())
         log("called from:\n" + "".join(traceback.format_stack()))
diff --git a/app/scodoc/sco_placement.py b/app/scodoc/sco_placement.py
index 21e928624..d3f91400e 100644
--- a/app/scodoc/sco_placement.py
+++ b/app/scodoc/sco_placement.py
@@ -465,7 +465,7 @@ def Excel_feuille_placement(
     # ajuste largeurs colonnes (unite inconnue, empirique)
     width = 4500
     if nbcolumns > 5:
-        width = 22500 / nbcolumns
+        width = 22500 // nbcolumns
 
     for col in range(nbcolumns):
         ws0.col(col + 1).width = width