diff --git a/app/models/etudiants.py b/app/models/etudiants.py
index 2b6f6d6524..e189ab5976 100644
--- a/app/models/etudiants.py
+++ b/app/models/etudiants.py
@@ -151,5 +151,5 @@ class EtudAnnotation(db.Model):
     id = db.Column(db.Integer, primary_key=True)
     date = db.Column(db.DateTime(timezone=True), server_default=db.func.now())
     etudid = db.Column(db.Integer)  # sans contrainte pour garder logs après suppression
-    authenticated_user = db.Column(db.Text)
+    author = db.Column(db.Text)  # le pseudo (user_name)
     comment = db.Column(db.Text)
diff --git a/app/models/notes.py b/app/models/notes.py
index 5c9164a949..5852e29527 100644
--- a/app/models/notes.py
+++ b/app/models/notes.py
@@ -114,7 +114,7 @@ class NotesAppreciations(db.Model):
         db.Integer,
         db.ForeignKey("notes_formsemestre.id"),
     )
-    author = db.Column(db.Text)  # login, sans contrainte
+    author = db.Column(db.Text)  # le pseudo (user_name), sans contrainte
     comment = db.Column(db.Text)  # texte libre
 
 
diff --git a/app/scodoc/notesdb.py b/app/scodoc/notesdb.py
index cc2925d6fe..96da43a9b4 100644
--- a/app/scodoc/notesdb.py
+++ b/app/scodoc/notesdb.py
@@ -301,6 +301,8 @@ class EditableTable(object):
         vals = dictfilter(args, self.dbfields, self.filter_nulls)
         if self.id_name in vals:
             del vals[self.id_name]
+        if "id" in vals:
+            del vals["id"]
         if self.html_quote:
             quote_dict(vals)  # quote all HTML markup
         # format value
diff --git a/app/scodoc/pe_avislatex.py b/app/scodoc/pe_avislatex.py
index 9699359a64..1e6d2f8395 100644
--- a/app/scodoc/pe_avislatex.py
+++ b/app/scodoc/pe_avislatex.py
@@ -393,7 +393,7 @@ def get_avis_poursuite_par_etudiant(
     result: [ chaine unicode, chaine unicode ]
     """
     if pe_tools.PE_DEBUG:
-        pe_tools.pe_print(jury.syntheseJury[etudid]["nom"] + " " + etudid)
+        pe_tools.pe_print(jury.syntheseJury[etudid]["nom"] + " " + str(etudid))
 
     civilite_str = jury.syntheseJury[etudid]["civilite_str"]
     nom = jury.syntheseJury[etudid]["nom"].replace(" ", "-")
@@ -405,7 +405,7 @@ def get_avis_poursuite_par_etudiant(
         + "_"
         + pe_tools.remove_accents(prenom)
         + "_"
-        + etudid
+        + str(etudid)
     )
     if pe_tools.PE_DEBUG:
         pe_tools.pe_print("fichier latex =" + nom_fichier, type(nom_fichier))
diff --git a/app/scodoc/pe_jurype.py b/app/scodoc/pe_jurype.py
index b5d9b9c5a4..bba732482d 100644
--- a/app/scodoc/pe_jurype.py
+++ b/app/scodoc/pe_jurype.py
@@ -423,7 +423,7 @@ class JuryPE(object):
                 fid = sesFormsemestre_idValidants[i]
                 self.PARCOURSINFO_DICT[etudid][nom_sem] = fid  # ['formsemestre_id']
                 if fid != None and pe_tools.PE_DEBUG and pe_tools.PE_DEBUG >= 2:
-                    pe_tools.pe_print(nom_sem + "=" + fid, end="")
+                    pe_tools.pe_print(nom_sem + "=" + str(fid), end="")
                     # self.get_moyennesEtClassements_par_semestre_d_un_etudiant( etudid, fid )
 
             # Quelles sont ses années validantes ('1A', '2A') et ses parcours (3S, 4S) validants ?
@@ -1170,7 +1170,7 @@ class JuryPE(object):
                 nom_sem
             ]  # le formsemestre_id du semestre taggué de l'étudiant
             semtag = self.semTagDict[semtagid]
-            chaine += "Semestre " + nom_sem + semtagid + "\n"
+            chaine += "Semestre " + nom_sem + str(semtagid) + "\n"
             # le détail du calcul tag par tag
             # chaine += "Détail du calcul du tag\n"
             # chaine += "-----------------------\n"
diff --git a/app/scodoc/pe_semestretag.py b/app/scodoc/pe_semestretag.py
index c0a301259f..3f745e3d17 100644
--- a/app/scodoc/pe_semestretag.py
+++ b/app/scodoc/pe_semestretag.py
@@ -360,7 +360,12 @@ class SemestreTag(pe_tagtable.TableTag):
             lesEtuds = []
 
         for etudid in lesEtuds:
-            descr = "%15s" % self.nt.get_nom_short(etudid)[:15] + delim + etudid + delim
+            descr = (
+                "%15s" % self.nt.get_nom_short(etudid)[:15]
+                + delim
+                + str(etudid)
+                + delim
+            )
             if tag in taglist:
                 for modimpl_id in self.tagdict[tag]:
                     (note, coeff) = self.get_noteEtCoeff_modimpl(modimpl_id, etudid)
@@ -433,7 +438,7 @@ class SemestreTag(pe_tagtable.TableTag):
                     + "*"
                     + str(mod["ponderation"])
                     + ") "
-                    + modid
+                    + str(modid)
                     + ", "
                 )
             chaine += "\n"
diff --git a/app/scodoc/sco_archives.py b/app/scodoc/sco_archives.py
index 469bf06094..915b0d18ab 100644
--- a/app/scodoc/sco_archives.py
+++ b/app/scodoc/sco_archives.py
@@ -101,7 +101,7 @@ class BaseArchiver(object):
             if not os.path.isdir(dept_dir):
                 log("creating directory %s" % dept_dir)
                 os.mkdir(dept_dir)
-            obj_dir = os.path.join(dept_dir, oid)
+            obj_dir = os.path.join(dept_dir, str(oid))
             if not os.path.isdir(obj_dir):
                 log("creating directory %s" % obj_dir)
                 os.mkdir(obj_dir)
@@ -144,7 +144,7 @@ class BaseArchiver(object):
         dt = [int(x) for x in os.path.split(archive_id)[1].split("-")]
         return datetime.datetime(*dt)
 
-    def list_archive(self, archive_id):
+    def list_archive(self, archive_id: str) -> str:
         """Return list of filenames (without path) in archive"""
         try:
             scu.GSL.acquire()
@@ -152,9 +152,7 @@ class BaseArchiver(object):
         finally:
             scu.GSL.release()
         files.sort()
-        return [
-            f.encode(scu.SCO_ENCODING) for f in files if f and f[0] != "_"
-        ]  # sco8 XXX
+        return [f for f in files if f and f[0] != "_"]
 
     def get_archive_name(self, archive_id):
         """name identifying archive, to be used in web URLs"""
@@ -183,7 +181,7 @@ class BaseArchiver(object):
         """Return description of archive"""
         return open(os.path.join(archive_id, "_description.txt")).read()
 
-    def create_obj_archive(self, context, oid, description):
+    def create_obj_archive(self, context, oid: int, description: str):
         """Creates a new archive for this object and returns its id."""
         archive_id = (
             self.get_obj_dir(context, oid)
@@ -196,10 +194,10 @@ class BaseArchiver(object):
             os.mkdir(archive_id)  # if exists, raises an OSError
         finally:
             scu.GSL.release()
-        self.store(archive_id, "_description.txt", description)
+        self.store(archive_id, "_description.txt", description.encode("utf-8"))
         return archive_id
 
-    def store(self, archive_id, filename, data):
+    def store(self, archive_id: str, filename: str, data: bytes):
         """Store data in archive, under given filename.
         Filename may be modified (sanitized): return used filename
         The file is created or replaced.
@@ -209,21 +207,21 @@ class BaseArchiver(object):
         try:
             scu.GSL.acquire()
             fname = os.path.join(archive_id, filename)
-            f = open(fname, "w")
+            f = open(fname, "wb")
             f.write(data)
             f.close()
         finally:
             scu.GSL.release()
         return filename
 
-    def get(self, archive_id, filename):
+    def get(self, archive_id: str, filename: str):
         """Retreive data"""
         if not scu.is_valid_filename(filename):
             log('Archiver.get: invalid filename "%s"' % filename)
             raise ValueError("invalid filename")
         fname = os.path.join(archive_id, filename)
         log("reading archive file %s" % fname)
-        return open(fname).read()
+        return open(fname, "rb").read()
 
     def get_archived_file(self, context, REQUEST, oid, archive_name, filename):
         """Recupere donnees du fichier indiqué et envoie au client"""
@@ -242,8 +240,8 @@ class BaseArchiver(object):
             return scu.sendCSVFile(REQUEST, data, filename)
         elif ext == ".pdf":
             return scu.sendPDFFile(REQUEST, data, filename)
-
-        return data  # should set mimetype...
+        REQUEST.RESPONSE.setHeader("content-type", "application/octet-stream")
+        return data  # should set mimetype for known files like images
 
 
 class SemsArchiver(BaseArchiver):
diff --git a/app/scodoc/sco_archives_etud.py b/app/scodoc/sco_archives_etud.py
index 94aad219f9..65a450f3da 100644
--- a/app/scodoc/sco_archives_etud.py
+++ b/app/scodoc/sco_archives_etud.py
@@ -169,9 +169,9 @@ def etud_upload_file_form(context, REQUEST, etudid):
             url_for("scolar.ficheEtud", scodoc_dept=g.scodoc_dept, etudid=etudid)
         )
     else:
-        data = tf[2]["datafile"][0].read()
+        data = tf[2]["datafile"].read()
         descr = tf[2]["description"]
-        filename = tf[2]["datafile"][0].filename
+        filename = tf[2]["datafile"].filename
         _store_etud_file_to_new_archive(
             context, REQUEST, etudid, data, filename, description=descr
         )
diff --git a/app/scodoc/sco_debouche.py b/app/scodoc/sco_debouche.py
index f7294896e1..31cbd7e792 100644
--- a/app/scodoc/sco_debouche.py
+++ b/app/scodoc/sco_debouche.py
@@ -28,7 +28,7 @@
 """
 Rapport (table) avec dernier semestre fréquenté et débouché de chaque étudiant
 """
-
+import http
 from flask import url_for, g
 
 import app.scodoc.sco_utils as scu
@@ -372,3 +372,4 @@ def itemsuivi_tag_set(context, itemsuivi_id="", taglist=[], REQUEST=None):
     for tagname in to_del:
         t = ItemSuiviTag(context, tagname)
         t.remove_tag_from_object(itemsuivi_id)
+    return "", http.HTTPStatus.NO_CONTENT
diff --git a/app/scodoc/sco_etud.py b/app/scodoc/sco_etud.py
index 6f48277dac..ba7a275b0d 100644
--- a/app/scodoc/sco_etud.py
+++ b/app/scodoc/sco_etud.py
@@ -307,9 +307,13 @@ def check_nom_prenom(cnx, nom="", prenom="", etudid=None):
         return False, 0
     # Now count homonyms:
     cursor = cnx.cursor(cursor_factory=ndb.ScoDocCursor)
-    req = "select etudid from identite where lower(nom) ~ %(nom)s and lower(prenom) ~ %(prenom)s"
+    req = """SELECT id 
+    FROM identite 
+    WHERE lower(nom) ~ %(nom)s 
+    and lower(prenom) ~ %(prenom)s
+    """
     if etudid:
-        req += "  and etudid <> %(etudid)s"
+        req += "  and id <> %(etudid)s"
     cursor.execute(req, {"nom": nom, "prenom": prenom, "etudid": etudid})
     res = cursor.dictfetchall()
     return True, len(res)
@@ -559,6 +563,7 @@ _admissionEditor = ndb.EditableTable(
         "annee_bac": pivot_year,
         "classement": ndb.int_null_is_null,
         "apb_classement_gr": ndb.int_null_is_null,
+        "boursier_prec": bool,
     },
     output_formators={"type_admission": lambda x: x or scu.TYPE_ADMISSION_DEFAULT},
     convert_null_outputs_to_empty=True,
@@ -747,8 +752,7 @@ _etud_annotationsEditor = ndb.EditableTable(
         "etudid",
         "author",
         "comment",
-        "zope_authenticated_user",
-        "zope_remote_addr",
+        "author",
     ),
     sortkey="date desc",
     convert_null_outputs_to_empty=True,
@@ -786,8 +790,7 @@ _appreciationsEditor = ndb.EditableTable(
         "formsemestre_id",
         "author",
         "comment",
-        "zope_authenticated_user",
-        "zope_remote_addr",
+        "author",
     ),
     sortkey="date desc",
     convert_null_outputs_to_empty=True,
diff --git a/app/scodoc/sco_formations.py b/app/scodoc/sco_formations.py
index ae06697dfd..043a4bec80 100644
--- a/app/scodoc/sco_formations.py
+++ b/app/scodoc/sco_formations.py
@@ -137,7 +137,7 @@ def formation_export(
     )
 
 
-def formation_import_xml(context, doc, import_tags=True):
+def formation_import_xml(context, doc: str, import_tags=True):
     """Create a formation from XML representation
     (format dumped by formation_export( format='xml' ))
     XML may contain object (UE, modules) ids: this function returns two
diff --git a/app/scodoc/sco_formsemestre_edit.py b/app/scodoc/sco_formsemestre_edit.py
index b82f3ef185..1e502e2a1e 100644
--- a/app/scodoc/sco_formsemestre_edit.py
+++ b/app/scodoc/sco_formsemestre_edit.py
@@ -1319,10 +1319,14 @@ def formsemestre_delete(context, formsemestre_id, REQUEST=None):
         return "\n".join(H) + html_sco_header.sco_footer()
     elif tf[0] == -1:  # cancel
         return flask.redirect(
-            scu.NotesURL() + "/formsemestre_status?formsemestre_id=" + formsemestre_id
+            scu.NotesURL()
+            + "/formsemestre_status?formsemestre_id="
+            + str(formsemestre_id)
         )
     else:
-        return flask.redirect("formsemestre_delete2?formsemestre_id=" + formsemestre_id)
+        return flask.redirect(
+            "formsemestre_delete2?formsemestre_id=" + str(formsemestre_id)
+        )
 
 
 def formsemestre_delete2(
diff --git a/app/scodoc/sco_formsemestre_validation.py b/app/scodoc/sco_formsemestre_validation.py
index 842389079a..2ce5e291c5 100644
--- a/app/scodoc/sco_formsemestre_validation.py
+++ b/app/scodoc/sco_formsemestre_validation.py
@@ -181,7 +181,7 @@ def formsemestre_validation_etud_form(
         if not desturl:
             desturl = (
                 "formsemestre_recapcomplet?modejury=1&hidemodules=1&hidebac=1&pref_override=0&formsemestre_id="
-                + formsemestre_id
+                + str(formsemestre_id)
             )
             if sortcol:
                 desturl += (
@@ -427,7 +427,7 @@ def _redirect_valid_choice(
 #         flask.redirect( 'formsemestre_validation_etud_form?formsemestre_id=%s&etudid=%s&check=1&desturl=%s' % (formsemestre_id, etudid, desturl) )
 #     else:
 #         if not desturl:
-#             desturl = 'formsemestre_recapcomplet?modejury=1&hidemodules=1&formsemestre_id=' + formsemestre_id
+#             desturl = 'formsemestre_recapcomplet?modejury=1&hidemodules=1&formsemestre_id=' + str(formsemestre_id)
 #         flask.redirect(desturl)
 
 
@@ -1082,7 +1082,7 @@ def formsemestre_validate_previous_ue(context, formsemestre_id, etudid, REQUEST=
         return "\n".join(H) + tf[1] + X + warn + html_sco_header.sco_footer()
     elif tf[0] == -1:
         return flask.redirect(
-            scu.NotesURL() + "/formsemestre_status?formsemestre_id=" + formsemestre_id
+            scu.NotesURL() + "/formsemestre_status?formsemestre_id=" + str(formsemestre_id)
         )
     else:
         if tf[2]["semestre_id"]:
diff --git a/app/scodoc/sco_groups.py b/app/scodoc/sco_groups.py
index fbbb3c7d1d..0d891b0999 100644
--- a/app/scodoc/sco_groups.py
+++ b/app/scodoc/sco_groups.py
@@ -1035,7 +1035,9 @@ def partition_delete(
 
     # redirect to partition edit page:
     if redirect:
-        return flask.redirect("editPartitionForm?formsemestre_id=" + formsemestre_id)
+        return flask.redirect(
+            "editPartitionForm?formsemestre_id=" + str(formsemestre_id)
+        )
 
 
 def partition_move(context, partition_id, after=0, REQUEST=None, redirect=1):
@@ -1068,7 +1070,9 @@ def partition_move(context, partition_id, after=0, REQUEST=None, redirect=1):
 
     # redirect to partition edit page:
     if redirect:
-        return flask.redirect("editPartitionForm?formsemestre_id=" + formsemestre_id)
+        return flask.redirect(
+            "editPartitionForm?formsemestre_id=" + str(formsemestre_id)
+        )
 
 
 def partition_rename(context, partition_id, REQUEST=None):
@@ -1105,7 +1109,9 @@ def partition_rename(context, partition_id, REQUEST=None):
             + html_sco_header.sco_footer()
         )
     elif tf[0] == -1:
-        return flask.redirect("editPartitionForm?formsemestre_id=" + formsemestre_id)
+        return flask.redirect(
+            "editPartitionForm?formsemestre_id=" + str(formsemestre_id)
+        )
     else:
         # form submission
         return partition_set_name(
@@ -1146,7 +1152,9 @@ def partition_set_name(context, partition_id, partition_name, REQUEST=None, redi
 
     # redirect to partition edit page:
     if redirect:
-        return flask.redirect("editPartitionForm?formsemestre_id=" + formsemestre_id)
+        return flask.redirect(
+            "editPartitionForm?formsemestre_id=" + str(formsemestre_id)
+        )
 
 
 def group_set_name(context, group_id, group_name, REQUEST=None, redirect=1):
@@ -1531,7 +1539,7 @@ def form_group_choice(
 
 def make_query_groups(group_ids):
     if group_ids:
-        return "&".join(["group_ids%3Alist=" + group_id for group_id in group_ids])
+        return "&".join(["group_ids%3Alist=" + str(group_id) for group_id in group_ids])
     else:
         return ""
 
diff --git a/app/scodoc/sco_inscr_passage.py b/app/scodoc/sco_inscr_passage.py
index c4b9ef0d86..3383e7ad73 100644
--- a/app/scodoc/sco_inscr_passage.py
+++ b/app/scodoc/sco_inscr_passage.py
@@ -353,7 +353,7 @@ def formsemestre_inscr_passage(
                     dest_url="formsemestre_inscr_passage",
                     add_headers=False,
                     cancel_url="formsemestre_inscr_passage?formsemestre_id="
-                    + formsemestre_id,
+                    + str(formsemestre_id),
                     OK="Effectuer l'opération",
                     parameters={
                         "formsemestre_id": formsemestre_id,
diff --git a/app/scodoc/sco_page_etud.py b/app/scodoc/sco_page_etud.py
index bc08c9f5fe..64e4a08a82 100644
--- a/app/scodoc/sco_page_etud.py
+++ b/app/scodoc/sco_page_etud.py
@@ -295,7 +295,7 @@ def ficheEtud(context, etudid=None, REQUEST=None):
                 ),
             )
         alist.append(
-            '<tr><td><span class="annodate">Le %(date)s par %(zope_authenticated_user)s : </span><span class="annoc">%(comment)s</span></td>%(dellink)s</tr>'
+            '<tr><td><span class="annodate">Le %(date)s par %(author)s : </span><span class="annoc">%(comment)s</span></td>%(dellink)s</tr>'
             % a
         )
     info["liste_annotations"] = "\n".join(alist)
diff --git a/app/scodoc/sco_permissions_check.py b/app/scodoc/sco_permissions_check.py
index 96dc747cf8..2e5cd0d805 100644
--- a/app/scodoc/sco_permissions_check.py
+++ b/app/scodoc/sco_permissions_check.py
@@ -95,9 +95,9 @@ def can_suppress_annotation(annotation_id):
     if len(annos) != 1:
         raise sco_exceptions.ScoValueError("annotation inexistante !")
     anno = annos[0]
-    return (
-        current_user.user_name == anno["zope_authenticated_user"]
-    ) or current_user.has_permission(Permission.ScoEtudAddAnnotations)
+    return (current_user.user_name == anno["author"]) or current_user.has_permission(
+        Permission.ScoEtudAddAnnotations
+    )
 
 
 def can_edit_suivi():
diff --git a/app/scodoc/sco_photos.py b/app/scodoc/sco_photos.py
index 36348b92ce..d759acdc5c 100644
--- a/app/scodoc/sco_photos.py
+++ b/app/scodoc/sco_photos.py
@@ -321,7 +321,7 @@ def get_new_filename(context, etudid):
     The path is constructed as: Fxx/etudid
     """
     dept = scu.get_dept_id()
-    return find_new_dir() + dept + "_" + etudid
+    return find_new_dir() + dept + "_" + str(etudid)
 
 
 def find_new_dir():
diff --git a/app/scodoc/sco_saisie_notes.py b/app/scodoc/sco_saisie_notes.py
index 021fc9a566..22357d85fa 100644
--- a/app/scodoc/sco_saisie_notes.py
+++ b/app/scodoc/sco_saisie_notes.py
@@ -1123,13 +1123,13 @@ def _form_saisie_notes(context, E, M, group_ids, destination="", REQUEST=None):
         explanation += '<span id="jurylink_%s" class="jurylink"></span>' % etudid
 
         # Valeur actuelle du champ:
-        initvalues["note_" + etudid] = e["val"]
+        initvalues["note_" + str(etudid)] = e["val"]
         label_link = '<a class="etudinfo" id="%s">%s</a>' % (etudid, label)
 
         # Element de formulaire:
         descr.append(
             (
-                "note_" + etudid,
+                "note_" + str(etudid),
                 {
                     "size": 5,
                     "title": label_link,
diff --git a/app/scodoc/sco_synchro_etuds.py b/app/scodoc/sco_synchro_etuds.py
index f40e00f226..bbfc4fd253 100644
--- a/app/scodoc/sco_synchro_etuds.py
+++ b/app/scodoc/sco_synchro_etuds.py
@@ -211,7 +211,7 @@ def formsemestre_synchro_etuds(
                     dest_url="formsemestre_synchro_etuds",
                     add_headers=False,
                     cancel_url="formsemestre_synchro_etuds?formsemestre_id="
-                    + formsemestre_id,
+                    + str(formsemestre_id),
                     OK="Effectuer l'opération",
                     parameters={
                         "formsemestre_id": formsemestre_id,
diff --git a/app/views/absences.py b/app/views/absences.py
index 3ba0753e38..f91d1dda5f 100644
--- a/app/views/absences.py
+++ b/app/views/absences.py
@@ -1173,7 +1173,7 @@ def AddBilletAbsenceForm(context, etudid, REQUEST=None):
                 justified=tf[2]["justified"],
             )
         )
-        return flask.redirect("listeBilletsEtud?etudid=" + etudid)
+        return flask.redirect("listeBilletsEtud?etudid=" + str(etudid))
 
 
 def _tableBillets(context, billets, etud=None, title=""):
diff --git a/app/views/notes.py b/app/views/notes.py
index ca2cb2915d..2ec2186154 100644
--- a/app/views/notes.py
+++ b/app/views/notes.py
@@ -40,6 +40,7 @@ from xml.etree import ElementTree
 import flask
 from flask import url_for, g
 from flask import current_app
+from flask_login import current_user
 
 from config import Config
 import scodoc_manager
@@ -483,7 +484,7 @@ def formation_import_xml_form(context, REQUEST):
         return flask.redirect(scu.NotesURL())
     else:
         formation_id, _, _ = sco_formations.formation_import_xml(
-            context, tf[2]["xmlfile"]
+            context, tf[2]["xmlfile"].read()
         )
 
         return (
@@ -1078,7 +1079,9 @@ def edit_ue_expr(context, REQUEST, formsemestre_id, ue_id):
     if tf[0] == 0:
         return "\n".join(H) + tf[1] + html_sco_header.sco_footer()
     elif tf[0] == -1:
-        return flask.redirect("formsemestre_status?formsemestre_id=" + formsemestre_id)
+        return flask.redirect(
+            "formsemestre_status?formsemestre_id=" + str(formsemestre_id)
+        )
     else:
         if el:
             el[0]["computation_expr"] = tf[2]["computation_expr"]
@@ -1091,7 +1094,7 @@ def edit_ue_expr(context, REQUEST, formsemestre_id, ue_id):
         )  # > modif regle calcul
         return flask.redirect(
             "formsemestre_status?formsemestre_id="
-            + formsemestre_id
+            + str(formsemestre_id)
             + "&head_message=règle%20de%20calcul%20modifiée"
         )
 
@@ -1329,7 +1332,7 @@ def etud_desinscrit_ue(context, etudid, formsemestre_id, ue_id, REQUEST=None):
     return flask.redirect(
         scu.ScoURL()
         + "/Notes/moduleimpl_inscriptions_stats?formsemestre_id="
-        + formsemestre_id
+        + str(formsemestre_id)
     )
 
 
@@ -1344,7 +1347,7 @@ def etud_inscrit_ue(context, etudid, formsemestre_id, ue_id, REQUEST=None):
     return flask.redirect(
         scu.ScoURL()
         + "/Notes/moduleimpl_inscriptions_stats?formsemestre_id="
-        + formsemestre_id
+        + str(formsemestre_id)
     )
 
 
@@ -1767,7 +1770,6 @@ def appreciation_add_form(
 ):
     "form ajout ou edition d'une appreciation"
     cnx = ndb.GetDBConnexion()
-    authuser = REQUEST.AUTHENTICATED_USER
     if id:  # edit mode
         apps = sco_etud.appreciations_list(cnx, args={"id": id})
         if not apps:
@@ -1783,8 +1785,8 @@ def appreciation_add_form(
         edit = 0
     sem = sco_formsemestre.get_formsemestre(context, formsemestre_id)
     # check custom access permission
-    can_edit_app = (str(authuser) in sem["responsables"]) or (
-        authuser.has_permission(Permission.ScoEtudInscrit)
+    can_edit_app = (current_user.id in sem["responsables"]) or (
+        current_user.has_permission(Permission.ScoEtudInscrit)
     )
     if not can_edit_app:
         raise AccessDenied("vous n'avez pas le droit d'ajouter une appreciation")
@@ -1839,10 +1841,8 @@ def appreciation_add_form(
         args = {
             "etudid": etudid,
             "formsemestre_id": formsemestre_id,
-            "author": str(authuser),
+            "author": current_user.user_name,
             "comment": tf[2]["comment"],
-            "zope_authenticated_user": str(authuser),
-            "zope_remote_addr": REQUEST.REMOTE_ADDR,
         }
         if edit:
             args["id"] = id
diff --git a/app/views/scolar.py b/app/views/scolar.py
index db78538691..da00ace6e3 100644
--- a/app/views/scolar.py
+++ b/app/views/scolar.py
@@ -43,6 +43,7 @@ import psycopg2
 import flask
 from flask import g, url_for
 from flask import current_app
+from flask_login import current_user
 
 from config import Config
 import scodoc_manager
@@ -454,18 +455,28 @@ sco_publish(
 
 # Debouche / devenir etudiant
 sco_publish(
-    "/itemsuivi_suppress", sco_debouche.itemsuivi_suppress, Permission.ScoEtudChangeAdr
+    "/itemsuivi_suppress",
+    sco_debouche.itemsuivi_suppress,
+    Permission.ScoEtudChangeAdr,
+    methods=["GET", "POST"],
 )
 sco_publish(
-    "/itemsuivi_create", sco_debouche.itemsuivi_create, Permission.ScoEtudChangeAdr
+    "/itemsuivi_create",
+    sco_debouche.itemsuivi_create,
+    Permission.ScoEtudChangeAdr,
+    methods=["GET", "POST"],
 )
 sco_publish(
-    "/itemsuivi_set_date", sco_debouche.itemsuivi_set_date, Permission.ScoEtudChangeAdr
+    "/itemsuivi_set_date",
+    sco_debouche.itemsuivi_set_date,
+    Permission.ScoEtudChangeAdr,
+    methods=["GET", "POST"],
 )
 sco_publish(
     "/itemsuivi_set_situation",
     sco_debouche.itemsuivi_set_situation,
     Permission.ScoEtudChangeAdr,
+    methods=["GET", "POST"],
 )
 sco_publish(
     "/itemsuivi_list_etud", sco_debouche.itemsuivi_list_etud, Permission.ScoView
@@ -475,24 +486,25 @@ sco_publish(
     "/itemsuivi_tag_search", sco_debouche.itemsuivi_tag_search, Permission.ScoView
 )
 sco_publish(
-    "/itemsuivi_tag_set", sco_debouche.itemsuivi_tag_set, Permission.ScoEtudChangeAdr
+    "/itemsuivi_tag_set",
+    sco_debouche.itemsuivi_tag_set,
+    Permission.ScoEtudChangeAdr,
+    methods=["GET", "POST"],
 )
 
 
 @bp.route("/doAddAnnotation", methods=["GET", "POST"])
 @permission_required(Permission.ScoEtudAddAnnotations)
 @scodoc7func(context)
-def doAddAnnotation(context, etudid, comment, REQUEST):
+def doAddAnnotation(etudid, comment):
     "ajoute annotation sur etudiant"
-    authuser = REQUEST.AUTHENTICATED_USER
     cnx = ndb.GetDBConnexion()
     sco_etud.etud_annotations_create(
         cnx,
         args={
             "etudid": etudid,
             "comment": comment,
-            "zope_authenticated_user": str(authuser),
-            "zope_remote_addr": REQUEST.REMOTE_ADDR,
+            "authenticated_user": current_user.user_name,
         },
     )
     logdb(cnx, method="addAnnotation", etudid=etudid)
@@ -1473,7 +1485,7 @@ def _etudident_create_or_edit_form(context, REQUEST, edit):
                 formsemestre_id=formsemestre_id
             )  # > etudident_create_or_edit
         #
-        return flask.redirect("ficheEtud?etudid=" + etudid)
+        return flask.redirect("ficheEtud?etudid=" + str(etudid))
 
 
 @bp.route("/etudident_delete", methods=["GET", "POST"])
@@ -1968,7 +1980,9 @@ def form_students_import_infos_admissions(context, REQUEST, formsemestre_id=None
         return "\n".join(H) + tf[1] + help_text + F
     elif tf[0] == -1:
         return flask.redirect(
-            scu.ScoURL() + "/formsemestre_status?formsemestre_id=" + formsemestre_id
+            scu.ScoURL()
+            + "/formsemestre_status?formsemestre_id="
+            + str(formsemestre_id)
         )
     else:
         return sco_import_etuds.students_import_admission(
diff --git a/misc/example-api-python2.py b/misc/example-api-python2.py
index ea5a2536ed..7bd1bec2e1 100644
--- a/misc/example-api-python2.py
+++ b/misc/example-api-python2.py
@@ -15,9 +15,10 @@ BASEURL = "https://scodoc.xxx.net/ScoDoc/RT/Scolarite"
 USER = "XXX"
 PASSWORD = "XXX"
 
-values = {'__ac_name' : USER,
-          '__ac_password' : PASSWORD,
-          }
+values = {
+    "__ac_name": USER,
+    "__ac_password": PASSWORD,
+}
 
 # Configure memorisation des cookies:
 opener = urllib2.build_opener(urllib2.HTTPCookieProcessor())
@@ -25,57 +26,74 @@ urllib2.install_opener(opener)
 
 data = urllib.urlencode(values)
 
-req = urllib2.Request(BASEURL, data) # this is a POST http request
+req = urllib2.Request(BASEURL, data)  # this is a POST http request
 response = urllib2.urlopen(req)
 
 # --- Use API
 
 # Affiche la liste des formations en format XML
-req = urllib2.Request(BASEURL+'/Notes/formation_list?format=xml' )
+req = urllib2.Request(BASEURL + "/Notes/formation_list?format=xml")
 response = urllib2.urlopen(req)
-print response.read()[:100] # limite aux 100 premiers caracteres...
+print response.read()[:100]  # limite aux 100 premiers caracteres...
 
 # Recupere la liste de tous les semestres:
-req = urllib2.Request(BASEURL+'/Notes/formsemestre_list?format=json') # format json
+req = urllib2.Request(BASEURL + "/Notes/formsemestre_list?format=json")  # format json
 response = urllib2.urlopen(req)
 js_data = response.read()
 
 # Plus amusant: va retrouver le bulletin de notes du premier etudiant (au hasard donc) du premier semestre (au hasard aussi)
 try:
-    import json # Attention: ceci demande Python >= 2.6
+    import json  # Attention: ceci demande Python >= 2.6
 except:
-    import simplejson as json # python2.4 with simplejson installed
+    import simplejson as json  # python2.4 with simplejson installed
 
-data = json.loads(js_data) # decode la reponse JSON
+data = json.loads(js_data)  # decode la reponse JSON
 if not data:
     print "Aucun semestre !"
 else:
-    formsemestre_id = str(data[0]['formsemestre_id'])
+    formsemestre_id = str(data[0]["formsemestre_id"])
     # Obtient la liste des groupes:
-    req = urllib2.Request(BASEURL+'/Notes/formsemestre_partition_list?format=json&formsemestre_id='+formsemestre_id) # format json
-    response = urllib2.urlopen(req) 
+    req = urllib2.Request(
+        BASEURL
+        + "/Notes/formsemestre_partition_list?format=json&formsemestre_id="
+        + str(formsemestre_id)
+    )  # format json
+    response = urllib2.urlopen(req)
     js_data = response.read()
     data = json.loads(js_data)
-    group_id = data[0]['group'][0]['group_id'] # premier groupe (normalement existe toujours)
+    group_id = data[0]["group"][0][
+        "group_id"
+    ]  # premier groupe (normalement existe toujours)
     # Liste les étudiants de ce groupe:
-    req = urllib2.Request(BASEURL+'/Notes/group_list?format=json&with_codes=1&group_id='+group_id) # format json
-    response = urllib2.urlopen(req) 
+    req = urllib2.Request(
+        BASEURL + "/Notes/group_list?format=json&with_codes=1&group_id=" + str(group_id)
+    )  # format json
+    response = urllib2.urlopen(req)
     js_data = response.read()
     data = json.loads(js_data)
     # Le code du premier étudiant:
     if not data:
-        print "pas d'etudiants dans ce semestre !"
+        print ("pas d'etudiants dans ce semestre !")
     else:
-        etudid = data[0]['etudid']
+        etudid = data[0]["etudid"]
         # Récupère bulletin de notes:
-        req = urllib2.Request(BASEURL+'/Notes/formsemestre_bulletinetud?formsemestre_id='+formsemestre_id+'&etudid=' + etudid + '&format=xml') # format XML ici !
+        req = urllib2.Request(
+            BASEURL
+            + "/Notes/formsemestre_bulletinetud?formsemestre_id="
+            + str(formsemestre_id)
+            + "&etudid="
+            + str(etudid)
+            + "&format=xml"
+        )  # format XML ici !
         response = urllib2.urlopen(req)
         xml_bulletin = response.read()
-        print '----- Bulletin de notes en XML:'
+        print "----- Bulletin de notes en XML:"
         print xml_bulletin
         # Récupère la moyenne générale:
         import xml.dom.minidom
+
         doc = xml.dom.minidom.parseString(xml_bulletin)
-        moy = doc.getElementsByTagName('note')[0].getAttribute('value') # une chaine unicode
-        print '\nMoyenne generale: ', moy
-    
+        moy = doc.getElementsByTagName("note")[0].getAttribute(
+            "value"
+        )  # une chaine unicode
+        print "\nMoyenne generale: ", moy