diff --git a/app/scodoc/notes_table.py b/app/scodoc/notes_table.py
index 99b4d7787..3f0155244 100644
--- a/app/scodoc/notes_table.py
+++ b/app/scodoc/notes_table.py
@@ -27,9 +27,10 @@
 
 """Calculs sur les notes et cache des resultats
 """
-import time
-import pdb
 import inspect
+import os
+import pdb
+import time
 from operator import itemgetter
 
 from flask import g, url_for
@@ -172,7 +173,7 @@ class NotesTable(object):
     """
 
     def __init__(self, formsemestre_id):
-        log("NotesTable( formsemestre_id=%s )" % formsemestre_id)
+        log(f"[pid={os.getpid()}] NotesTable( formsemestre_id={formsemestre_id} )")
         if not formsemestre_id:
             raise ValueError("invalid formsemestre_id (%s)" % formsemestre_id)
         self.formsemestre_id = formsemestre_id
@@ -356,7 +357,9 @@ class NotesTable(object):
         #
         self.compute_moy_moy()
         #
-        log("NotesTable( formsemestre_id=%s ) done." % formsemestre_id)
+        log(
+            f"[pid={os.getpid()}] NotesTable( formsemestre_id={formsemestre_id} ) done."
+        )
 
     def get_etudids(self, sorted=False):
         if sorted:
diff --git a/app/scodoc/sco_report.py b/app/scodoc/sco_report.py
index f386a6088..b0a02ab7a 100644
--- a/app/scodoc/sco_report.py
+++ b/app/scodoc/sco_report.py
@@ -696,6 +696,7 @@ def formsemestre_suivi_cohorte(
     REQUEST=None,
 ):
     """Affiche suivi cohortes par numero de semestre"""
+    annee_bac = str(annee_bac)
     percent = int(percent)
     (
         tab,
@@ -798,7 +799,8 @@ def _gen_form_selectetuds(
     bacs.sort()
     bacspecialites = list(bacspecialites)
     bacspecialites.sort()
-    annee_bacs = list(annee_bacs)
+    # on peut avoir un mix de chaines vides et d'entiers:
+    annee_bacs = [int(x) if x else 0 for x in annee_bacs]
     annee_bacs.sort()
     civilites = list(civilites)
     civilites.sort()
@@ -1467,6 +1469,7 @@ def formsemestre_graph_parcours(
     REQUEST=None,
 ):
     """Graphe suivi cohortes"""
+    annee_bac = str(annee_bac)
     # log("formsemestre_graph_parcours")
     sem = sco_formsemestre.get_formsemestre(formsemestre_id)
     if format == "pdf":
diff --git a/app/scodoc/sco_synchro_etuds.py b/app/scodoc/sco_synchro_etuds.py
index c9d0bb4a2..ee84ec57f 100644
--- a/app/scodoc/sco_synchro_etuds.py
+++ b/app/scodoc/sco_synchro_etuds.py
@@ -133,7 +133,6 @@ def formsemestre_synchro_etuds(
         inscrits_without_key_all,
         etudsapo_ident,
     ) = list_synch(sem, anneeapogee=anneeapogee)
-    breakpoint()
     if export_cat_xls:
         filename = export_cat_xls
         xls = build_page(
@@ -156,7 +155,6 @@ def formsemestre_synchro_etuds(
             read_only=read_only,
         )
     else:
-        breakpoint()
         etuds_set = set(etuds)
         a_importer = a_importer.intersection(etuds_set)
         a_desinscrire = inscrits_set - etuds_set