diff --git a/README.md b/README.md
index 12d2bbca80..b1117729b7 100644
--- a/README.md
+++ b/README.md
@@ -148,9 +148,15 @@ Mémo pour développeurs: séquence re-création d'une base:
     flask import-scodoc7-users
     flask import-scodoc7-dept STID SCOSTID
 
+Si la base utilisée pour les dev n'est plus en phase avec les scripts de
+migration, utiliser les commandes `flask db history`et `flask db stamp`pour se
+positionner à la bonne étape.
+
 # Paquet debian 11
 
-Les scripts associés au paquet Debian (.deb) sont dans `tools/debian`.
+Les scripts associés au paquet Debian (.deb) sont dans `tools/debian`. Le plus
+important est `postinst`qui se charge de configurer le système (install ou
+upgrade de scodoc9).
 
 La préparation d'une release se fait à l'aide du script
 `tools/build_release.sh`. 
diff --git a/app/__init__.py b/app/__init__.py
index a913f57ec5..ac256d8a49 100644
--- a/app/__init__.py
+++ b/app/__init__.py
@@ -2,6 +2,7 @@
 # pylint: disable=invalid-name
 
 import os
+import re
 import socket
 import sys
 import time
@@ -12,19 +13,19 @@ from logging.handlers import SMTPHandler, WatchedFileHandler
 
 from flask import current_app, g, request
 from flask import Flask
-from flask import abort, has_request_context
+from flask import abort, has_request_context, jsonify
 from flask import render_template
 from flask.logging import default_handler
 from flask_sqlalchemy import SQLAlchemy
 from flask_migrate import Migrate
-from flask_login import LoginManager
+from flask_login import LoginManager, current_user
 from flask_mail import Mail
 from flask_bootstrap import Bootstrap
 from flask_moment import Moment
 from flask_caching import Cache
 import sqlalchemy
 
-from app.scodoc.sco_exceptions import ScoValueError
+from app.scodoc.sco_exceptions import ScoValueError, APIInvalidParams
 from config import DevConfig
 import sco_version
 
@@ -32,7 +33,7 @@ db = SQLAlchemy()
 migrate = Migrate(compare_type=True)
 login = LoginManager()
 login.login_view = "auth.login"
-login.login_message = "Please log in to access this page."
+login.login_message = "Identifiez-vous pour accéder à cette page."
 mail = Mail()
 bootstrap = Bootstrap()
 moment = Moment()
@@ -56,6 +57,12 @@ def internal_server_error(e):
     return render_template("error_500.html", SCOVERSION=sco_version.SCOVERSION), 500
 
 
+def handle_invalid_usage(error):
+    response = jsonify(error.to_dict())
+    response.status_code = error.status_code
+    return response
+
+
 def render_raw_html(template_filename: str, **args) -> str:
     """Load and render an HTML file _without_ using Flask
     Necessary for 503 error mesage, when DB is down and Flask may be broken.
@@ -76,7 +83,7 @@ def postgresql_server_error(e):
     return render_raw_html("error_503.html", SCOVERSION=sco_version.SCOVERSION), 503
 
 
-class RequestFormatter(logging.Formatter):
+class LogRequestFormatter(logging.Formatter):
     """Ajoute URL et remote_addr for logging"""
 
     def format(self, record):
@@ -86,12 +93,64 @@ class RequestFormatter(logging.Formatter):
         else:
             record.url = None
             record.remote_addr = None
+        record.sco_user = current_user
 
         return super().format(record)
 
 
+class LogExceptionFormatter(logging.Formatter):
+    """Formatteur pour les exceptions: ajoute détails"""
+
+    def format(self, record):
+        if has_request_context():
+            record.url = request.url
+            record.remote_addr = request.environ.get(
+                "HTTP_X_FORWARDED_FOR", request.remote_addr
+            )
+            record.http_referrer = request.referrer
+            record.http_method = request.method
+            if request.method == "GET":
+                record.http_params = str(request.args)
+            else:
+                record.http_params = "(post data not loggued)"
+        else:
+            record.url = None
+            record.remote_addr = None
+            record.http_referrer = None
+            record.http_method = None
+            record.http_params = None
+        record.sco_user = current_user
+
+        return super().format(record)
+
+
+class ScoSMTPHandler(SMTPHandler):
+    def getSubject(self, record: logging.LogRecord) -> str:
+        stack_summary = traceback.extract_tb(record.exc_info[2])
+        frame_summary = stack_summary[-1]
+        subject = f"ScoExc({sco_version.SCOVERSION}): {record.exc_info[0].__name__} in {frame_summary.name} {frame_summary.filename}"
+
+        return subject
+
+
+class ReverseProxied(object):
+    """Adaptateur wsgi qui nous permet d'avoir toutes les URL calculées en https
+    sauf quand on est en dev.
+    La variable HTTP_X_FORWARDED_PROTO est positionnée par notre config nginx"""
+
+    def __init__(self, app):
+        self.app = app
+
+    def __call__(self, environ, start_response):
+        scheme = environ.get("HTTP_X_FORWARDED_PROTO")
+        if scheme:
+            environ["wsgi.url_scheme"] = scheme  # ou forcer à https ici ?
+        return self.app(environ, start_response)
+
+
 def create_app(config_class=DevConfig):
     app = Flask(__name__, static_url_path="/ScoDoc/static", static_folder="static")
+    app.wsgi_app = ReverseProxied(app.wsgi_app)
     app.logger.setLevel(logging.DEBUG)
     app.config.from_object(config_class)
 
@@ -107,6 +166,7 @@ def create_app(config_class=DevConfig):
     app.register_error_handler(ScoValueError, handle_sco_value_error)
     app.register_error_handler(500, internal_server_error)
     app.register_error_handler(503, postgresql_server_error)
+    app.register_error_handler(APIInvalidParams, handle_invalid_usage)
 
     from app.auth import bp as auth_bp
 
@@ -132,9 +192,16 @@ def create_app(config_class=DevConfig):
         absences_bp, url_prefix="/ScoDoc/<scodoc_dept>/Scolarite/Absences"
     )
     app.register_blueprint(api_bp, url_prefix="/ScoDoc/api")
-    scodoc_exc_formatter = RequestFormatter(
-        "[%(asctime)s] %(remote_addr)s requested %(url)s\n"
-        "%(levelname)s in %(module)s: %(message)s"
+    scodoc_log_formatter = LogRequestFormatter(
+        "[%(asctime)s] %(sco_user)s@%(remote_addr)s requested %(url)s\n"
+        "%(levelname)s: %(message)s"
+    )
+    scodoc_exc_formatter = LogExceptionFormatter(
+        "[%(asctime)s] %(sco_user)s@%(remote_addr)s requested %(url)s\n"
+        "%(levelname)s: %(message)s\n"
+        "Referrer: %(http_referrer)s\n"
+        "Method: %(http_method)s\n"
+        "Params: %(http_params)s\n"
     )
     if not app.testing:
         if not app.debug:
@@ -150,11 +217,11 @@ def create_app(config_class=DevConfig):
                 if app.config["MAIL_USE_TLS"]:
                     secure = ()
                 host_name = socket.gethostname()
-                mail_handler = SMTPHandler(
+                mail_handler = ScoSMTPHandler(
                     mailhost=(app.config["MAIL_SERVER"], app.config["MAIL_PORT"]),
                     fromaddr="no-reply@" + app.config["MAIL_SERVER"],
                     toaddrs=["exception@scodoc.org"],
-                    subject="ScoDoc Exception from " + host_name,
+                    subject="ScoDoc Exception",  # unused see ScoSMTPHandler
                     credentials=auth,
                     secure=secure,
                 )
@@ -163,7 +230,7 @@ def create_app(config_class=DevConfig):
                 app.logger.addHandler(mail_handler)
         else:
             # Pour logs en DEV uniquement:
-            default_handler.setFormatter(scodoc_exc_formatter)
+            default_handler.setFormatter(scodoc_log_formatter)
 
         # Config logs pour DEV et PRODUCTION
         # Configuration des logs (actifs aussi en mode development)
@@ -172,9 +239,17 @@ def create_app(config_class=DevConfig):
         file_handler = WatchedFileHandler(
             app.config["SCODOC_LOG_FILE"], encoding="utf-8"
         )
-        file_handler.setFormatter(scodoc_exc_formatter)
+        file_handler.setFormatter(scodoc_log_formatter)
         file_handler.setLevel(logging.INFO)
         app.logger.addHandler(file_handler)
+        # Log pour les erreurs (exceptions) uniquement:
+        # usually /opt/scodoc-data/log/scodoc_exc.log
+        file_handler = WatchedFileHandler(
+            app.config["SCODOC_ERR_FILE"], encoding="utf-8"
+        )
+        file_handler.setFormatter(scodoc_exc_formatter)
+        file_handler.setLevel(logging.ERROR)
+        app.logger.addHandler(file_handler)
 
         # app.logger.setLevel(logging.INFO)
         app.logger.info(f"{sco_version.SCONAME} {sco_version.SCOVERSION} startup")
@@ -353,4 +428,4 @@ from app.scodoc import sco_cache
 #     click.echo(
 #         "Warning: user database not initialized !\n (use: flask user-db-init)"
 #     )
-#     admin = None
\ No newline at end of file
+#     admin = None
diff --git a/app/auth/forms.py b/app/auth/forms.py
index e374781776..143f655461 100644
--- a/app/auth/forms.py
+++ b/app/auth/forms.py
@@ -16,20 +16,20 @@ _l = _
 
 
 class LoginForm(FlaskForm):
-    user_name = StringField(_l("Username"), validators=[DataRequired()])
-    password = PasswordField(_l("Password"), validators=[DataRequired()])
-    remember_me = BooleanField(_l("Remember Me"))
-    submit = SubmitField(_l("Sign In"))
+    user_name = StringField(_l("Nom d'utilisateur"), validators=[DataRequired()])
+    password = PasswordField(_l("Mot de passe"), validators=[DataRequired()])
+    remember_me = BooleanField(_l("mémoriser la connexion"))
+    submit = SubmitField(_l("Suivant"))
 
 
 class UserCreationForm(FlaskForm):
-    user_name = StringField(_l("Username"), validators=[DataRequired()])
+    user_name = StringField(_l("Nom d'utilisateur"), validators=[DataRequired()])
     email = StringField(_l("Email"), validators=[DataRequired(), Email()])
-    password = PasswordField(_l("Password"), validators=[DataRequired()])
+    password = PasswordField(_l("Mot de passe"), validators=[DataRequired()])
     password2 = PasswordField(
-        _l("Repeat Password"), validators=[DataRequired(), EqualTo("password")]
+        _l("Répéter"), validators=[DataRequired(), EqualTo("password")]
     )
-    submit = SubmitField(_l("Register"))
+    submit = SubmitField(_l("Inscrire"))
 
     def validate_user_name(self, user_name):
         user = User.query.filter_by(user_name=user_name.data).first()
@@ -48,9 +48,9 @@ class ResetPasswordRequestForm(FlaskForm):
 
 
 class ResetPasswordForm(FlaskForm):
-    password = PasswordField(_l("Password"), validators=[DataRequired()])
+    password = PasswordField(_l("Mot de passe"), validators=[DataRequired()])
     password2 = PasswordField(
-        _l("Repeat Password"), validators=[DataRequired(), EqualTo("password")]
+        _l("Répéter"), validators=[DataRequired(), EqualTo("password")]
     )
     submit = SubmitField(_l("Request Password Reset"))
 
diff --git a/app/auth/routes.py b/app/auth/routes.py
index 7b1712f00b..8f01a0c196 100644
--- a/app/auth/routes.py
+++ b/app/auth/routes.py
@@ -38,7 +38,7 @@ def login():
         user = User.query.filter_by(user_name=form.user_name.data).first()
         if user is None or not user.check_password(form.password.data):
             current_app.logger.info("login: invalid (%s)", form.user_name.data)
-            flash(_("Invalid user name or password"))
+            flash(_("Nom ou mot de passe invalide"))
             return redirect(url_for("auth.login"))
         login_user(user, remember=form.remember_me.data)
         current_app.logger.info("login: success (%s)", form.user_name.data)
@@ -95,7 +95,7 @@ def reset_password_request():
             current_app.logger.info(
                 "reset_password_request: for unkown user '{}'".format(form.email.data)
             )
-        flash(_("Check your email for the instructions to reset your password"))
+        flash(_("Voir les instructions envoyées par mail"))
         return redirect(url_for("auth.login"))
     return render_template(
         "auth/reset_password_request.html", title=_("Reset Password"), form=form
diff --git a/app/decorators.py b/app/decorators.py
index 3696d56cad..4987f0d834 100644
--- a/app/decorators.py
+++ b/app/decorators.py
@@ -43,12 +43,14 @@ class ZRequest(object):
     "Emulating Zope 2 REQUEST"
 
     def __init__(self):
-        if current_app.config["DEBUG"]:
-            self.URL = request.base_url
-            self.BASE0 = request.url_root
-        else:
-            self.URL = request.base_url.replace("http://", "https://")
-            self.BASE0 = request.url_root.replace("http://", "https://")
+        # if current_app.config["DEBUG"]:
+
+        # le ReverseProxied se charge maintenant de mettre le bon protocole http ou https
+        self.URL = request.base_url
+        self.BASE0 = request.url_root
+        # else:
+        #     self.URL = request.base_url.replace("http://", "https://")
+        #     self.BASE0 = request.url_root.replace("http://", "https://")
         self.URL0 = self.URL
         # query_string is bytes:
         self.QUERY_STRING = request.query_string.decode("utf-8")
diff --git a/app/models/etudiants.py b/app/models/etudiants.py
index 57eadbc788..a77f272e1f 100644
--- a/app/models/etudiants.py
+++ b/app/models/etudiants.py
@@ -41,6 +41,7 @@ class Identite(db.Model):
     code_nip = db.Column(db.Text())
     code_ine = db.Column(db.Text())
     # Ancien id ScoDoc7 pour les migrations de bases anciennes
+    # ne pas utiliser après migrate_scodoc7_dept_archive
     scodoc7_id = db.Column(db.Text(), nullable=True)
 
 
diff --git a/app/models/formsemestre.py b/app/models/formsemestre.py
index 148d9c8714..89468ab2f5 100644
--- a/app/models/formsemestre.py
+++ b/app/models/formsemestre.py
@@ -19,7 +19,7 @@ class FormSemestre(db.Model):
 
     id = db.Column(db.Integer, primary_key=True)
     formsemestre_id = db.synonym("id")
-    # dept_id est aussi dans la formation, ajpouté ici pour
+    # dept_id est aussi dans la formation, ajouté ici pour
     # simplifier et accélérer les selects dans notesdb
     dept_id = db.Column(db.Integer, db.ForeignKey("departement.id"), index=True)
     formation_id = db.Column(db.Integer, db.ForeignKey("notes_formations.id"))
@@ -41,6 +41,10 @@ class FormSemestre(db.Model):
     bul_hide_xml = db.Column(
         db.Boolean(), nullable=False, default=False, server_default="false"
     )
+    # Bloque le calcul des moyennes (générale et d'UE)
+    block_moyennes = db.Column(
+        db.Boolean(), nullable=False, default=False, server_default="false"
+    )
     # semestres decales (pour gestion jurys):
     gestion_semestrielle = db.Column(
         db.Boolean(), nullable=False, default=False, server_default="false"
@@ -70,6 +74,7 @@ class FormSemestre(db.Model):
         "NotesFormsemestreEtape", cascade="all,delete", backref="notes_formsemestre"
     )
     # Ancien id ScoDoc7 pour les migrations de bases anciennes
+    # ne pas utiliser après migrate_scodoc7_dept_archive
     scodoc7_id = db.Column(db.Text(), nullable=True)
 
     def __init__(self, **kwargs):
diff --git a/app/scodoc/TrivialFormulator.py b/app/scodoc/TrivialFormulator.py
index ebe5c52a82..eacbfd78f2 100644
--- a/app/scodoc/TrivialFormulator.py
+++ b/app/scodoc/TrivialFormulator.py
@@ -8,6 +8,7 @@
 
    v 1.3 (python3)
 """
+import html
 
 
 def TrivialFormulator(
@@ -722,7 +723,9 @@ var {field}_as = new bsn.AutoSuggest('{field}', {field}_opts);
                     if str(descr["allowed_values"][i]) == str(self.values[field]):
                         R.append('<span class="tf-ro-value">%s</span>' % labels[i])
         elif input_type == "textarea":
-            R.append('<div class="tf-ro-textarea">%s</div>' % self.values[field])
+            R.append(
+                '<div class="tf-ro-textarea">%s</div>' % html.escape(self.values[field])
+            )
         elif input_type == "separator" or input_type == "hidden":
             pass
         elif input_type == "file":
diff --git a/app/scodoc/html_sco_header.py b/app/scodoc/html_sco_header.py
index 4944f6e406..c204e7403d 100644
--- a/app/scodoc/html_sco_header.py
+++ b/app/scodoc/html_sco_header.py
@@ -87,10 +87,6 @@ Problème de connexion (identifiant, mot de passe): <em>contacter votre responsa
     )
 
 
-_TOP_LEVEL_CSS = """
-    <style type="text/css">
-    </style>"""
-
 _HTML_BEGIN = """<?xml version="1.0" encoding="%(encoding)s"?>
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 <html xmlns="http://www.w3.org/1999/xhtml">
@@ -105,31 +101,30 @@ _HTML_BEGIN = """<?xml version="1.0" encoding="%(encoding)s"?>
     
 <link href="/ScoDoc/static/css/scodoc.css" rel="stylesheet" type="text/css" />
 <link href="/ScoDoc/static/css/menu.css" rel="stylesheet" type="text/css" />
-<script language="javascript" type="text/javascript" src="/ScoDoc/static/libjs/menu.js"></script>
-<script language="javascript" type="text/javascript" src="/ScoDoc/static/libjs/sorttable.js"></script>
-<script language="javascript" type="text/javascript" src="/ScoDoc/static/libjs/bubble.js"></script>
-<script type="text/javascript">
+<script src="/ScoDoc/static/libjs/menu.js"></script>
+<script src="/ScoDoc/static/libjs/sorttable.js"></script>
+<script src="/ScoDoc/static/libjs/bubble.js"></script>
+<script>
  window.onload=function(){enableTooltips("gtrcontent")};
 </script>
 
-<script language="javascript" type="text/javascript" src="/ScoDoc/static/jQuery/jquery.js"></script>
-<script language="javascript" type="text/javascript" src="/ScoDoc/static/jQuery/jquery-migrate-1.2.0.min.js"></script>
-<script language="javascript" type="text/javascript" src="/ScoDoc/static/libjs/jquery.field.min.js"></script>
+<script src="/ScoDoc/static/jQuery/jquery.js"></script>
+<script src="/ScoDoc/static/jQuery/jquery-migrate-1.2.0.min.js"></script>
+<script src="/ScoDoc/static/libjs/jquery.field.min.js"></script>
 
-<script language="javascript" type="text/javascript" src="/ScoDoc/static/libjs/jquery-ui-1.10.4.custom/js/jquery-ui-1.10.4.custom.min.js"></script>
+<script src="/ScoDoc/static/libjs/jquery-ui-1.10.4.custom/js/jquery-ui-1.10.4.custom.min.js"></script>
 
-<script language="javascript" type="text/javascript" src="/ScoDoc/static/libjs/qtip/jquery.qtip-3.0.3.min.js"></script>
+<script src="/ScoDoc/static/libjs/qtip/jquery.qtip-3.0.3.min.js"></script>
 <link type="text/css" rel="stylesheet" href="/ScoDoc/static/libjs/qtip/jquery.qtip-3.0.3.min.css" />
 
-<script language="javascript" type="text/javascript" src="/ScoDoc/static/js/scodoc.js"></script>
-<script language="javascript" type="text/javascript" src="/ScoDoc/static/js/etud_info.js"></script>
+<script src="/ScoDoc/static/js/scodoc.js"></script>
+<script src="/ScoDoc/static/js/etud_info.js"></script>
 """
 
 
 def scodoc_top_html_header(page_title="ScoDoc: bienvenue"):
     H = [
         _HTML_BEGIN % {"page_title": page_title, "encoding": scu.SCO_ENCODING},
-        _TOP_LEVEL_CSS,
         """</head><body class="gtrcontent" id="gtrcontent">""",
         scu.CUSTOM_HTML_HEADER_CNX,
     ]
@@ -185,13 +180,10 @@ def sco_header(
         init_jquery = True
 
     H = [
-        """<?xml version="1.0" encoding="%(encoding)s"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml">
+        """<!DOCTYPE html><html lang="fr">
 <head>
+<meta charset="utf-8"/>
 <title>%(page_title)s</title>
-<meta http-equiv="Content-Type" content="text/html; charset=%(encoding)s" />
-<meta http-equiv="Content-Style-Type" content="text/css" />
 <meta name="LANG" content="fr" />
 <meta name="DESCRIPTION" content="ScoDoc" />
 
@@ -206,9 +198,7 @@ def sco_header(
         )
     if init_google_maps:
         # It may be necessary to add an API key:
-        H.append(
-            '<script type="text/javascript" src="https://maps.google.com/maps/api/js"></script>'
-        )
+        H.append('<script src="https://maps.google.com/maps/api/js"></script>')
 
     # Feuilles de style additionnelles:
     for cssstyle in cssstyles:
@@ -223,9 +213,9 @@ def sco_header(
 <link href="/ScoDoc/static/css/menu.css" rel="stylesheet" type="text/css" />
 <link href="/ScoDoc/static/css/gt_table.css" rel="stylesheet" type="text/css" />
 
-<script language="javascript" type="text/javascript" src="/ScoDoc/static/libjs/menu.js"></script>
-<script language="javascript" type="text/javascript" src="/ScoDoc/static/libjs/bubble.js"></script>
-<script type="text/javascript">
+<script src="/ScoDoc/static/libjs/menu.js"></script>
+<script src="/ScoDoc/static/libjs/bubble.js"></script>
+<script>
  window.onload=function(){enableTooltips("gtrcontent")};
 
  var SCO_URL="%(ScoURL)s";
@@ -236,16 +226,14 @@ def sco_header(
     # jQuery
     if init_jquery:
         H.append(
-            """<script language="javascript" type="text/javascript" src="/ScoDoc/static/jQuery/jquery.js"></script>
+            """<script src="/ScoDoc/static/jQuery/jquery.js"></script>
                   """
         )
-        H.append(
-            '<script language="javascript" type="text/javascript" src="/ScoDoc/static/libjs/jquery.field.min.js"></script>'
-        )
+        H.append('<script src="/ScoDoc/static/libjs/jquery.field.min.js"></script>')
     # qTip
     if init_qtip:
         H.append(
-            '<script language="javascript" type="text/javascript" src="/ScoDoc/static/libjs/qtip/jquery.qtip-3.0.3.min.js"></script>'
+            '<script src="/ScoDoc/static/libjs/qtip/jquery.qtip-3.0.3.min.js"></script>'
         )
         H.append(
             '<link type="text/css" rel="stylesheet" href="/ScoDoc/static/libjs/qtip/jquery.qtip-3.0.3.min.css" />'
@@ -253,32 +241,25 @@ def sco_header(
 
     if init_jquery_ui:
         H.append(
-            '<script language="javascript" type="text/javascript" src="/ScoDoc/static/libjs/jquery-ui-1.10.4.custom/js/jquery-ui-1.10.4.custom.min.js"></script>'
-        )
-        # H.append('<script language="javascript" type="text/javascript" src="/ScoDoc/static/libjs/jquery-ui/js/jquery-ui-i18n.js"></script>')
-        H.append(
-            '<script language="javascript" type="text/javascript" src="/ScoDoc/static/js/scodoc.js"></script>'
+            '<script src="/ScoDoc/static/libjs/jquery-ui-1.10.4.custom/js/jquery-ui-1.10.4.custom.min.js"></script>'
         )
+        # H.append('<script src="/ScoDoc/static/libjs/jquery-ui/js/jquery-ui-i18n.js"></script>')
+        H.append('<script src="/ScoDoc/static/js/scodoc.js"></script>')
     if init_google_maps:
         H.append(
-            '<script type="text/javascript" src="/ScoDoc/static/libjs/jquery.ui.map.full.min.js"></script>'
+            '<script src="/ScoDoc/static/libjs/jquery.ui.map.full.min.js"></script>'
         )
     if init_datatables:
         H.append(
             '<link rel="stylesheet" type="text/css" href="/ScoDoc/static/DataTables/datatables.min.css"/>'
         )
-        H.append(
-            '<script type="text/javascript" src="/ScoDoc/static/DataTables/datatables.min.js"></script>'
-        )
+        H.append('<script src="/ScoDoc/static/DataTables/datatables.min.js"></script>')
     # JS additionels
     for js in javascripts:
-        H.append(
-            """<script language="javascript" type="text/javascript" src="/ScoDoc/static/%s"></script>\n"""
-            % js
-        )
+        H.append("""<script src="/ScoDoc/static/%s"></script>\n""" % js)
 
     H.append(
-        """<style type="text/css">
+        """<style>
 .gtrcontent {
    margin-left: %(margin_left)s;
    height: 100%%;
@@ -290,7 +271,7 @@ def sco_header(
     )
     # Scripts de la page:
     if scripts:
-        H.append("""<script language="javascript" type="text/javascript">""")
+        H.append("""<script>""")
         for script in scripts:
             H.append(script)
         H.append("""</script>""")
diff --git a/app/scodoc/html_sidebar.py b/app/scodoc/html_sidebar.py
index 5ec2ae26b4..70efb16050 100644
--- a/app/scodoc/html_sidebar.py
+++ b/app/scodoc/html_sidebar.py
@@ -28,9 +28,8 @@
 """
 Génération de la "sidebar" (marge gauche des pages HTML)
 """
-from flask import url_for
-from flask import g
-from flask import request
+from flask import render_template, url_for
+from flask import g, request
 from flask_login import current_user
 
 import app.scodoc.sco_utils as scu
@@ -152,11 +151,12 @@ def sidebar():
     # Logo
     H.append(
         f"""<div class="logo-insidebar">
-        <div class="sidebar-bottom"><a href="{ url_for( 'scolar.about', scodoc_dept=g.scodoc_dept ) }" class="sidebar">À propos</a><br/>
+        <div class="sidebar-bottom"><a href="{ url_for( 'scodoc.about', scodoc_dept=g.scodoc_dept ) }" class="sidebar">À propos</a><br/>
         <a href="{ scu.SCO_USER_MANUAL }" target="_blank" class="sidebar">Aide</a>
         </div></div>
-        <div class="logo-logo"><a href= { url_for( 'scolar.about', scodoc_dept=g.scodoc_dept ) }
-        ">{ scu.icontag("scologo_img", no_size=True) }</a>
+        <div class="logo-logo">
+           <a href="{ url_for( 'scodoc.about', scodoc_dept=g.scodoc_dept ) }">
+                    { scu.icontag("scologo_img", no_size=True) }</a>
         </div>
         </div> 
         <!-- end of sidebar -->
@@ -167,19 +167,7 @@ def sidebar():
 
 def sidebar_dept():
     """Partie supérieure de la marge de gauche"""
-    H = [
-        f"""<h2 class="insidebar">Dépt. {sco_preferences.get_preference("DeptName")}</h2>
-<a href="{url_for("scodoc.index")}" class="sidebar">Accueil</a> <br/> """
-    ]
-    dept_intranet_url = sco_preferences.get_preference("DeptIntranetURL")
-    if dept_intranet_url:
-        H.append(
-            f"""<a href="{dept_intranet_url}" class="sidebar">{
-                sco_preferences.get_preference("DeptIntranetTitle")}</a> <br/>"""
-        )
-    # Entreprises pas encore supporté en ScoDoc8
-    # H.append(
-    #    """<br/><a href="%(ScoURL)s/Entreprises" class="sidebar">Entreprises</a> <br/>"""
-    #    % infos
-    # )
-    return "\n".join(H)
+    return render_template(
+        "sidebar_dept.html",
+        prefs=sco_preferences.SemPreferences(),
+    )
diff --git a/app/scodoc/notes_table.py b/app/scodoc/notes_table.py
index aeb7dabf7f..bd88cadfb5 100644
--- a/app/scodoc/notes_table.py
+++ b/app/scodoc/notes_table.py
@@ -186,6 +186,8 @@ class NotesTable(object):
         self.use_ue_coefs = sco_preferences.get_preference(
             "use_ue_coefs", formsemestre_id
         )
+        # si vrai, bloque calcul des moy gen. et d'UE.:
+        self.block_moyennes = self.sem["block_moyennes"]
         # Infos sur les etudiants
         self.inscrlist = sco_formsemestre_inscriptions.do_formsemestre_inscription_list(
             args={"formsemestre_id": formsemestre_id}
@@ -738,6 +740,7 @@ class NotesTable(object):
         block_computation = (
             self.inscrdict[etudid]["etat"] == "D"
             or self.inscrdict[etudid]["etat"] == DEF
+            or self.block_moyennes
         )
 
         moy_ues = {}
diff --git a/app/scodoc/sco_abs.py b/app/scodoc/sco_abs.py
index a0fffc6737..39d075bb10 100644
--- a/app/scodoc/sco_abs.py
+++ b/app/scodoc/sco_abs.py
@@ -324,15 +324,14 @@ def list_abs_in_range(etudid, debut, fin, matin=None, moduleimpl_id=None, cursor
         cnx = ndb.GetDBConnexion()
         cursor = cnx.cursor(cursor_factory=ndb.ScoDocCursor)
     cursor.execute(
-        """
-SELECT DISTINCT A.JOUR, A.MATIN
-FROM ABSENCES A
-WHERE A.ETUDID = %(etudid)s
-    AND A.ESTABS"""
+        """SELECT DISTINCT A.JOUR, A.MATIN
+        FROM ABSENCES A
+        WHERE A.ETUDID = %(etudid)s
+        AND A.ESTABS"""
         + ismatin
         + modul
         + """
-    AND A.JOUR BETWEEN %(debut)s AND %(fin)s
+        AND A.JOUR BETWEEN %(debut)s AND %(fin)s
         """,
         {
             "etudid": etudid,
@@ -639,7 +638,10 @@ def add_absence(
     cnx = ndb.GetDBConnexion()
     cursor = cnx.cursor(cursor_factory=ndb.ScoDocCursor)
     cursor.execute(
-        "insert into absences (etudid,jour,estabs,estjust,matin,description, moduleimpl_id) values (%(etudid)s, %(jour)s, TRUE, %(estjust)s, %(matin)s, %(description)s, %(moduleimpl_id)s )",
+        """
+        INSERT into absences (etudid,jour,estabs,estjust,matin,description, moduleimpl_id) 
+        VALUES (%(etudid)s, %(jour)s, true, %(estjust)s, %(matin)s, %(description)s, %(moduleimpl_id)s )
+        """,
         vars(),
     )
     logdb(
diff --git a/app/scodoc/sco_abs_notification.py b/app/scodoc/sco_abs_notification.py
index 69f6518bb2..bf7c5e095c 100644
--- a/app/scodoc/sco_abs_notification.py
+++ b/app/scodoc/sco_abs_notification.py
@@ -218,7 +218,10 @@ def user_nbdays_since_last_notif(email_addr, etudid):
     cnx = ndb.GetDBConnexion()
     cursor = cnx.cursor(cursor_factory=ndb.ScoDocCursor)
     cursor.execute(
-        """select * from absences_notifications where email = %(email_addr)s and etudid=%(etudid)s order by notification_date desc""",
+        """SELECT * FROM absences_notifications 
+        WHERE email = %(email_addr)s and etudid=%(etudid)s 
+        ORDER BY notification_date DESC
+        """,
         {"email_addr": email_addr, "etudid": etudid},
     )
     res = cursor.dictfetchone()
diff --git a/app/scodoc/sco_abs_views.py b/app/scodoc/sco_abs_views.py
index 213a4a3eff..a05d42c5ef 100644
--- a/app/scodoc/sco_abs_views.py
+++ b/app/scodoc/sco_abs_views.py
@@ -628,14 +628,18 @@ def AnnuleAbsencesDatesNoJust(etudid, dates, moduleimpl_id=None):
     # supr les absences non justifiees
     for date in dates:
         cursor.execute(
-            "delete from absences where etudid=%(etudid)s and (not estjust) and jour=%(date)s and moduleimpl_id=%(moduleimpl_id)s",
+            """DELETE FROM absences 
+            WHERE etudid=%(etudid)s and (not estjust) and jour=%(date)s and moduleimpl_id=%(moduleimpl_id)s
+            """,
             vars(),
         )
         sco_abs.invalidate_abs_etud_date(etudid, date)
     # s'assure que les justificatifs ne sont pas "absents"
     for date in dates:
         cursor.execute(
-            "update absences set estabs=FALSE where  etudid=%(etudid)s and jour=%(date)s and moduleimpl_id=%(moduleimpl_id)s",
+            """UPDATE absences SET estabs=FALSE 
+            WHERE etudid=%(etudid)s AND jour=%(date)s AND moduleimpl_id=%(moduleimpl_id)s
+            """,
             vars(),
         )
     if dates:
@@ -840,9 +844,9 @@ def ListeAbsEtud(
     # Formats non HTML et demande d'une seule table:
     if format != "html" and format != "text":
         if absjust_only == 1:
-            return tab_absjust.make_page(format=format, REQUEST=REQUEST)
+            return tab_absjust.make_page(format=format)
         else:
-            return tab_absnonjust.make_page(format=format, REQUEST=REQUEST)
+            return tab_absnonjust.make_page(format=format)
 
     if format == "html":
         # Mise en forme HTML:
diff --git a/app/scodoc/sco_archives.py b/app/scodoc/sco_archives.py
index 9266724f94..f69041e902 100644
--- a/app/scodoc/sco_archives.py
+++ b/app/scodoc/sco_archives.py
@@ -34,11 +34,11 @@
 
  Les PV de jurys et documents associés sont stockées dans un sous-repertoire de la forme
     <archivedir>/<dept>/<formsemestre_id>/<YYYY-MM-DD-HH-MM-SS>
- (formsemestre_id est ici FormSemestre.scodoc7_id ou à défaut FormSemestre.id)
+ (formsemestre_id est ici FormSemestre.id)
 
  Les documents liés à l'étudiant sont dans
     <archivedir>/docetuds/<dept>/<etudid>/<YYYY-MM-DD-HH-MM-SS>
-(etudid est ici soit Identite.scodoc7id, soit à défaut Identite.id)
+(etudid est ici Identite.id)
 
  Les maquettes Apogée pour l'export des notes sont dans
     <archivedir>/apo_csv/<dept>/<annee_scolaire>-<sem_id>/<YYYY-MM-DD-HH-MM-SS>/<code_etape>.csv
@@ -47,12 +47,13 @@
  qui est une description (humaine, format libre) de l'archive.
 
 """
-import os
-import time
 import datetime
+import glob
+import mimetypes
+import os
 import re
 import shutil
-import glob
+import time
 
 import flask
 from flask import g
@@ -244,31 +245,15 @@ class BaseArchiver(object):
         log("reading archive file %s" % fname)
         return open(fname, "rb").read()
 
-    def get_archived_file(self, REQUEST, oid, archive_name, filename):
+    def get_archived_file(self, oid, archive_name, filename):
         """Recupere donnees du fichier indiqué et envoie au client"""
-        # XXX très incomplet: devrait inférer et assigner un type MIME
         archive_id = self.get_id_from_name(oid, archive_name)
         data = self.get(archive_id, filename)
-        ext = os.path.splitext(filename.lower())[1]
-        if ext == ".html" or ext == ".htm":
-            return data
-        elif ext == ".xml":
-            REQUEST.RESPONSE.setHeader("content-type", scu.XML_MIMETYPE)
-            return data
-        elif ext == ".xls":
-            return sco_excel.send_excel_file(
-                REQUEST, data, filename, mime=scu.XLS_MIMETYPE
-            )
-        elif ext == ".xlsx":
-            return sco_excel.send_excel_file(
-                REQUEST, data, filename, mime=scu.XLSX_MIMETYPE
-            )
-        elif ext == ".csv":
-            return scu.sendCSVFile(REQUEST, data, filename)
-        elif ext == ".pdf":
-            return scu.sendPDFFile(REQUEST, data, filename)
-        REQUEST.RESPONSE.setHeader("content-type", "application/octet-stream")
-        return data  # should set mimetype for known files like images
+        mime = mimetypes.guess_type(filename)[0]
+        if mime is None:
+            mime = "application/octet-stream"
+
+        return scu.send_file(data, filename, mime=mime)
 
 
 class SemsArchiver(BaseArchiver):
@@ -305,7 +290,7 @@ def do_formsemestre_archive(
     from app.scodoc.sco_recapcomplet import make_formsemestre_recapcomplet
 
     sem = sco_formsemestre.get_formsemestre(formsemestre_id)
-    sem_archive_id = sem["scodoc7_id"] or formsemestre_id
+    sem_archive_id = formsemestre_id
     archive_id = PVArchive.create_obj_archive(sem_archive_id, description)
     date = PVArchive.get_archive_date(archive_id).strftime("%d/%m/%Y à %H:%M")
 
@@ -519,7 +504,7 @@ enregistrés et non modifiables, on peut les retrouver ultérieurement.
 def formsemestre_list_archives(REQUEST, formsemestre_id):
     """Page listing archives"""
     sem = sco_formsemestre.get_formsemestre(formsemestre_id)
-    sem_archive_id = sem["scodoc7_id"] or formsemestre_id
+    sem_archive_id = formsemestre_id
     L = []
     for archive_id in PVArchive.list_obj_archives(sem_archive_id):
         a = {
@@ -559,11 +544,11 @@ def formsemestre_list_archives(REQUEST, formsemestre_id):
     return "\n".join(H) + html_sco_header.sco_footer()
 
 
-def formsemestre_get_archived_file(REQUEST, formsemestre_id, archive_name, filename):
+def formsemestre_get_archived_file(formsemestre_id, archive_name, filename):
     """Send file to client."""
     sem = sco_formsemestre.get_formsemestre(formsemestre_id)
-    sem_archive_id = sem["scodoc7_id"] or formsemestre_id
-    return PVArchive.get_archived_file(REQUEST, sem_archive_id, archive_name, filename)
+    sem_archive_id = formsemestre_id
+    return PVArchive.get_archived_file(sem_archive_id, archive_name, filename)
 
 
 def formsemestre_delete_archive(
@@ -575,7 +560,7 @@ def formsemestre_delete_archive(
             "opération non autorisée pour %s" % str(REQUEST.AUTHENTICATED_USER)
         )
     sem = sco_formsemestre.get_formsemestre(formsemestre_id)
-    sem_archive_id = sem["scodoc7_id"] or formsemestre_id
+    sem_archive_id = formsemestre_id
     archive_id = PVArchive.get_id_from_name(sem_archive_id, archive_name)
 
     dest_url = "formsemestre_list_archives?formsemestre_id=%s" % (formsemestre_id)
diff --git a/app/scodoc/sco_archives_etud.py b/app/scodoc/sco_archives_etud.py
index 7b21da22a0..157d521733 100644
--- a/app/scodoc/sco_archives_etud.py
+++ b/app/scodoc/sco_archives_etud.py
@@ -65,7 +65,7 @@ def etud_list_archives_html(REQUEST, etudid):
     if not etuds:
         raise ScoValueError("étudiant inexistant")
     etud = etuds[0]
-    etud_archive_id = etud["scodoc7_id"] or etudid
+    etud_archive_id = etudid
     L = []
     for archive_id in EtudsArchive.list_obj_archives(etud_archive_id):
         a = {
@@ -118,7 +118,7 @@ def add_archives_info_to_etud_list(etuds):
     """
     for etud in etuds:
         l = []
-        etud_archive_id = etud["scodoc7_id"] or etud["etudid"]
+        etud_archive_id = etud["etudid"]
         for archive_id in EtudsArchive.list_obj_archives(etud_archive_id):
             l.append(
                 "%s (%s)"
@@ -181,7 +181,7 @@ def etud_upload_file_form(REQUEST, etudid):
         data = tf[2]["datafile"].read()
         descr = tf[2]["description"]
         filename = tf[2]["datafile"].filename
-        etud_archive_id = etud["scodoc7_id"] or etud["etudid"]
+        etud_archive_id = etud["etudid"]
         _store_etud_file_to_new_archive(
             etud_archive_id, data, filename, description=descr
         )
@@ -210,7 +210,7 @@ def etud_delete_archive(REQUEST, etudid, archive_name, dialog_confirmed=False):
     if not etuds:
         raise ScoValueError("étudiant inexistant")
     etud = etuds[0]
-    etud_archive_id = etud["scodoc7_id"] or etud["etudid"]
+    etud_archive_id = etud["etudid"]
     archive_id = EtudsArchive.get_id_from_name(etud_archive_id, archive_name)
     if not dialog_confirmed:
         return scu.confirm_dialog(
@@ -242,16 +242,14 @@ def etud_delete_archive(REQUEST, etudid, archive_name, dialog_confirmed=False):
     )
 
 
-def etud_get_archived_file(REQUEST, etudid, archive_name, filename):
+def etud_get_archived_file(etudid, archive_name, filename):
     """Send file to client."""
-    etuds = sco_etud.get_etud_info(filled=True)
+    etuds = sco_etud.get_etud_info(etudid=etudid, filled=True)
     if not etuds:
         raise ScoValueError("étudiant inexistant")
     etud = etuds[0]
-    etud_archive_id = etud["scodoc7_id"] or etud["etudid"]
-    return EtudsArchive.get_archived_file(
-        REQUEST, etud_archive_id, archive_name, filename
-    )
+    etud_archive_id = etud["etudid"]
+    return EtudsArchive.get_archived_file(etud_archive_id, archive_name, filename)
 
 
 # --- Upload d'un ensemble de fichiers (pour un groupe d'étudiants)
diff --git a/app/scodoc/sco_bulletins.py b/app/scodoc/sco_bulletins.py
index ab50b6bee9..215985b9e6 100644
--- a/app/scodoc/sco_bulletins.py
+++ b/app/scodoc/sco_bulletins.py
@@ -35,9 +35,8 @@ from email.mime.multipart import MIMEMultipart
 from email.mime.text import MIMEText
 from email.mime.base import MIMEBase
 from email.header import Header
-
 from reportlab.lib.colors import Color
-import six.moves.urllib.request, six.moves.urllib.parse, six.moves.urllib.error
+import urllib
 
 from flask import g
 from flask import url_for
@@ -444,7 +443,10 @@ def _ue_mod_bulletin(etudid, formsemestre_id, ue_id, modimpls, nt, version):
         if mod["mod_moy_txt"][:2] == "NA":
             mod["mod_moy_txt"] = "-"
         if is_malus:
-            if mod_moy > 0:
+            if isinstance(mod_moy, str):
+                mod["mod_moy_txt"] = "-"
+                mod["mod_coef_txt"] = "-"
+            elif mod_moy > 0:
                 mod["mod_moy_txt"] = scu.fmt_note(mod_moy)
                 mod["mod_coef_txt"] = "Malus"
             elif mod_moy < 0:
@@ -1061,7 +1063,7 @@ def _formsemestre_bulletinetud_header_html(
     # Menu
     endpoint = "notes.formsemestre_bulletinetud"
     url = REQUEST.URL0
-    qurl = six.moves.urllib.parse.quote_plus(url + "?" + REQUEST.QUERY_STRING)
+    qurl = urllib.parse.quote_plus(url + "?" + REQUEST.QUERY_STRING)
 
     menuBul = [
         {
diff --git a/app/scodoc/sco_cache.py b/app/scodoc/sco_cache.py
index f92ba7bc2c..50539d88ca 100644
--- a/app/scodoc/sco_cache.py
+++ b/app/scodoc/sco_cache.py
@@ -100,7 +100,7 @@ class ScoDocCache:
                 log("Error: cache set failed !")
         except:
             log("XXX CACHE Warning: error in set !!!")
-
+            status = None
         return status
 
     @classmethod
diff --git a/app/scodoc/sco_cost_formation.py b/app/scodoc/sco_cost_formation.py
index f262a653df..a702eaedad 100644
--- a/app/scodoc/sco_cost_formation.py
+++ b/app/scodoc/sco_cost_formation.py
@@ -197,4 +197,4 @@ def formsemestre_estim_cost(
         coef_tp,
     )
 
-    return tab.make_page(format=format, REQUEST=REQUEST)
+    return tab.make_page(format=format)
diff --git a/app/scodoc/sco_debouche.py b/app/scodoc/sco_debouche.py
index 0a301ebf97..df93897c73 100644
--- a/app/scodoc/sco_debouche.py
+++ b/app/scodoc/sco_debouche.py
@@ -70,7 +70,6 @@ def report_debouche_date(start_year=None, format="html", REQUEST=None):
         init_qtip=True,
         javascripts=["js/etud_info.js"],
         format=format,
-        REQUEST=REQUEST,
         with_html_headers=True,
     )
 
diff --git a/app/scodoc/sco_edit_ue.py b/app/scodoc/sco_edit_ue.py
index e2a40ed4c2..db19d56bde 100644
--- a/app/scodoc/sco_edit_ue.py
+++ b/app/scodoc/sco_edit_ue.py
@@ -1039,7 +1039,7 @@ def formation_table_recap(formation_id, format="html", REQUEST=None):
         pdf_title=title,
         preferences=sco_preferences.SemPreferences(),
     )
-    return tab.make_page(format=format, REQUEST=REQUEST)
+    return tab.make_page(format=format)
 
 
 def ue_list_semestre_ids(ue):
diff --git a/app/scodoc/sco_etape_apogee_view.py b/app/scodoc/sco_etape_apogee_view.py
index efa9c0074f..1b625bcd5d 100644
--- a/app/scodoc/sco_etape_apogee_view.py
+++ b/app/scodoc/sco_etape_apogee_view.py
@@ -578,7 +578,7 @@ def _view_etuds_page(
         preferences=sco_preferences.SemPreferences(),
     )
     if format != "html":
-        return tab.make_page(format=format, REQUEST=REQUEST)
+        return tab.make_page(format=format)
 
     H.append(tab.html())
 
@@ -678,7 +678,8 @@ def view_apo_csv(etape_apo="", semset_id="", format="html", REQUEST=None):
     sem_id = semset["sem_id"]
     csv_data = sco_etape_apogee.apo_csv_get(etape_apo, annee_scolaire, sem_id)
     if format == "raw":
-        return scu.sendCSVFile(REQUEST, csv_data, etape_apo + ".txt")
+        scu.send_file(csv_data, etape_apo, suffix=".txt", mime=scu.CSV_MIMETYPE)
+
     apo_data = sco_apogee_csv.ApoData(csv_data, periode=semset["sem_id"])
 
     (
@@ -753,7 +754,7 @@ def view_apo_csv(etape_apo="", semset_id="", format="html", REQUEST=None):
     )
 
     if format != "html":
-        return tab.make_page(format=format, REQUEST=REQUEST)
+        return tab.make_page(format=format)
 
     H += [
         tab.html(),
diff --git a/app/scodoc/sco_etud.py b/app/scodoc/sco_etud.py
index c653c007d0..4142eb9aba 100644
--- a/app/scodoc/sco_etud.py
+++ b/app/scodoc/sco_etud.py
@@ -31,27 +31,21 @@
 # Ancien module "scolars"
 import os
 import time
-
-from flask import url_for, g, request
-
-from email.mime.multipart import MIMEMultipart
-from email.mime.text import MIMEText
-from email.header import Header
-from email.mime.base import MIMEBase
 from operator import itemgetter
 
+from flask import url_for, g, request
+from flask_mail import Message
+
+from app import email
+from app import log
+
 import app.scodoc.sco_utils as scu
-from app.scodoc.sco_utils import SCO_ENCODING
 import app.scodoc.notesdb as ndb
 from app.scodoc.sco_exceptions import ScoGenError, ScoValueError
-
-from app import log
-from app.scodoc.TrivialFormulator import TrivialFormulator
 from app.scodoc import safehtml
 from app.scodoc import sco_preferences
 from app.scodoc.scolog import logdb
-from flask_mail import Message
-from app import mail
+from app.scodoc.TrivialFormulator import TrivialFormulator
 
 MONTH_NAMES_ABBREV = [
     "Jan ",
@@ -256,7 +250,6 @@ _identiteEditor = ndb.EditableTable(
         "photo_filename",
         "code_ine",
         "code_nip",
-        "scodoc7_id",
     ),
     filter_dept=True,
     sortkey="nom",
@@ -307,7 +300,7 @@ def check_nom_prenom(cnx, nom="", prenom="", etudid=None):
     # Don't allow some special cars (eg used in sql regexps)
     if scu.FORBIDDEN_CHARS_EXP.search(nom) or scu.FORBIDDEN_CHARS_EXP.search(prenom):
         return False, 0
-    # Now count homonyms:
+    # Now count homonyms (dans tous les départements):
     cursor = cnx.cursor(cursor_factory=ndb.ScoDocCursor)
     req = """SELECT id 
     FROM identite 
@@ -440,7 +433,7 @@ def notify_etud_change(email_addr, etud, before, after, subject):
         "Civilité: " + etud["civilite_str"],
         "Nom: " + etud["nom"],
         "Prénom: " + etud["prenom"],
-        "Etudid: " + etud["etudid"],
+        "Etudid: " + str(etud["etudid"]),
         "\n",
         "Changements effectués:",
     ]
@@ -456,7 +449,7 @@ def notify_etud_change(email_addr, etud, before, after, subject):
     log("notify_etud_change: sending notification to %s" % email_addr)
     log("notify_etud_change: subject: %s" % subject)
     log(txt)
-    mail.send_email(
+    email.send_email(
         subject, sco_preferences.get_preference("email_from_addr"), [email_addr], txt
     )
     return txt
@@ -896,7 +889,7 @@ def list_scolog(etudid):
     cnx = ndb.GetDBConnexion()
     cursor = cnx.cursor(cursor_factory=ndb.ScoDocCursor)
     cursor.execute(
-        "select * from scolog where etudid=%(etudid)s ORDER BY DATE DESC",
+        "SELECT * FROM scolog WHERE etudid=%(etudid)s ORDER BY DATE DESC",
         {"etudid": etudid},
     )
     return cursor.dictfetchall()
diff --git a/app/scodoc/sco_excel.py b/app/scodoc/sco_excel.py
index 54728a16c7..52e41cc215 100644
--- a/app/scodoc/sco_excel.py
+++ b/app/scodoc/sco_excel.py
@@ -305,6 +305,8 @@ class ScoExcelSheet:
         style -- style par défaut (dictionnaire cf. excel_make_style) de la feuille si non spécifié
         """
         cell = WriteOnlyCell(self.ws, value or "")
+        if not (isinstance(value, int) or isinstance(value, float)):
+            cell.data_type = "s"
         # if style is not None and "fill" in style:
         #     toto()
         if style is None:
diff --git a/app/scodoc/sco_exceptions.py b/app/scodoc/sco_exceptions.py
index 12aa05a101..5ae9ace4b0 100644
--- a/app/scodoc/sco_exceptions.py
+++ b/app/scodoc/sco_exceptions.py
@@ -96,3 +96,20 @@ class ScoGenError(ScoException):
 
 class ScoInvalidDateError(ScoValueError):
     pass
+
+
+# Pour les API JSON
+class APIInvalidParams(Exception):
+    status_code = 400
+
+    def __init__(self, message, status_code=None, payload=None):
+        Exception.__init__(self)
+        self.message = message
+        if status_code is not None:
+            self.status_code = status_code
+        self.payload = payload
+
+    def to_dict(self):
+        rv = dict(self.payload or ())
+        rv["message"] = self.message
+        return rv
diff --git a/app/scodoc/sco_export_results.py b/app/scodoc/sco_export_results.py
index 73f3c27eeb..7f67e7a0e6 100644
--- a/app/scodoc/sco_export_results.py
+++ b/app/scodoc/sco_export_results.py
@@ -246,9 +246,7 @@ def scodoc_table_results(
             "&types_parcours=".join([str(x) for x in types_parcours]),
         )
         if format != "html":
-            return tab.make_page(
-                format=format, with_html_headers=False, REQUEST=REQUEST
-            )
+            return tab.make_page(format=format, with_html_headers=False)
         tab_html = tab.html()
         nb_rows = tab.get_nb_rows()
     else:
diff --git a/app/scodoc/sco_find_etud.py b/app/scodoc/sco_find_etud.py
index 13426beac1..99691c1393 100644
--- a/app/scodoc/sco_find_etud.py
+++ b/app/scodoc/sco_find_etud.py
@@ -225,7 +225,7 @@ def search_etuds_infos(expnom=None, code_nip=None):
     else:
         code_nip = code_nip or expnom
         if code_nip:
-            etuds = sco_etud.etudident_list(cnx, args={"code_nip": code_nip})
+            etuds = sco_etud.etudident_list(cnx, args={"code_nip": str(code_nip)})
         else:
             etuds = []
     sco_etud.fill_etuds_info(etuds)
@@ -404,6 +404,4 @@ def search_inscr_etud_by_nip(code_nip, REQUEST=None, format="json"):
     )
     tab = GenTable(columns_ids=columns_ids, rows=T)
 
-    return tab.make_page(
-        format=format, with_html_headers=False, REQUEST=REQUEST, publish=True
-    )
+    return tab.make_page(format=format, with_html_headers=False, publish=True)
diff --git a/app/scodoc/sco_formsemestre.py b/app/scodoc/sco_formsemestre.py
index 3360b847b7..f519a4aed0 100644
--- a/app/scodoc/sco_formsemestre.py
+++ b/app/scodoc/sco_formsemestre.py
@@ -27,6 +27,7 @@
 
 """Operations de base sur les formsemestres
 """
+from app.scodoc.sco_exceptions import ScoValueError
 import time
 from operator import itemgetter
 
@@ -60,6 +61,7 @@ _formsemestreEditor = ndb.EditableTable(
         "gestion_semestrielle",
         "etat",
         "bul_hide_xml",
+        "block_moyennes",
         "bul_bgcolor",
         "modalite",
         "resp_can_edit",
@@ -67,7 +69,6 @@ _formsemestreEditor = ndb.EditableTable(
         "ens_can_edit_eval",
         "elt_sem_apo",
         "elt_annee_apo",
-        "scodoc7_id",
     ),
     filter_dept=True,
     sortkey="date_debut",
@@ -81,6 +82,7 @@ _formsemestreEditor = ndb.EditableTable(
         "etat": bool,
         "gestion_compensation": bool,
         "bul_hide_xml": bool,
+        "block_moyennes": bool,
         "gestion_semestrielle": bool,
         "gestion_compensation": bool,
         "gestion_semestrielle": bool,
@@ -93,6 +95,10 @@ _formsemestreEditor = ndb.EditableTable(
 
 def get_formsemestre(formsemestre_id):
     "list ONE formsemestre"
+    if not isinstance(formsemestre_id, int):
+        raise ScoValueError(
+            """Semestre invalide, reprenez l'opération au départ ou si le problème persiste signalez l'erreur sur scodoc-devel@listes.univ-paris13.fr"""
+        )
     try:
         sem = do_formsemestre_list(args={"formsemestre_id": formsemestre_id})[0]
         return sem
@@ -578,7 +584,7 @@ def view_formsemestre_by_etape(etape_apo=None, format="html", REQUEST=None):
         </form>""",
     )
     tab.base_url = "%s?etape_apo=%s" % (REQUEST.URL0, etape_apo or "")
-    return tab.make_page(format=format, REQUEST=REQUEST)
+    return tab.make_page(format=format)
 
 
 def sem_has_etape(sem, code_etape):
diff --git a/app/scodoc/sco_formsemestre_edit.py b/app/scodoc/sco_formsemestre_edit.py
index c1374b101a..57740a0f3f 100644
--- a/app/scodoc/sco_formsemestre_edit.py
+++ b/app/scodoc/sco_formsemestre_edit.py
@@ -501,6 +501,14 @@ def do_formsemestre_createwithmodules(REQUEST=None, edit=False):
                 "labels": [""],
             },
         ),
+        (
+            "block_moyennes",
+            {
+                "input_type": "boolcheckbox",
+                "title": "Bloquer moyennes",
+                "explanation": "empêcher le calcul des moyennes d'UE et générale.",
+            },
+        ),
         (
             "sep",
             {
@@ -693,7 +701,6 @@ def do_formsemestre_createwithmodules(REQUEST=None, edit=False):
             tf[2]["bul_hide_xml"] = False
         else:
             tf[2]["bul_hide_xml"] = True
-
         # remap les identifiants de responsables:
         tf[2]["responsable_id"] = User.get_user_id_from_nomplogin(
             tf[2]["responsable_id"]
diff --git a/app/scodoc/sco_formsemestre_status.py b/app/scodoc/sco_formsemestre_status.py
index 1e2862e371..d54629c95a 100644
--- a/app/scodoc/sco_formsemestre_status.py
+++ b/app/scodoc/sco_formsemestre_status.py
@@ -64,7 +64,7 @@ from app.scodoc.sco_formsemestre_custommenu import formsemestre_custommenu_html
 
 
 def _build_menu_stats(formsemestre_id):
-    "Définition du menu 'Statistiques' "
+    "Définition du menu 'Statistiques'"
     return [
         {
             "title": "Statistiques...",
@@ -495,6 +495,7 @@ def formsemestre_page_title():
     if not formsemestre_id:
         return ""
     try:
+        formsemestre_id = int(formsemestre_id)
         sem = sco_formsemestre.get_formsemestre(formsemestre_id).copy()
     except:
         log("can't find formsemestre_id %s" % formsemestre_id)
@@ -727,7 +728,7 @@ def formsemestre_description(
         tab.html_before_table += "checked"
     tab.html_before_table += ">indiquer les évaluations</input></form>"
 
-    return tab.make_page(format=format, REQUEST=REQUEST)
+    return tab.make_page(format=format)
 
 
 # genere liste html pour accès aux groupes de ce semestre
@@ -913,10 +914,10 @@ def formsemestre_status_head(formsemestre_id=None, REQUEST=None, page_title=None
         html_sco_header.html_sem_header(
             REQUEST, page_title, sem, with_page_header=False, with_h2=False
         ),
-        """<table>
+        f"""<table>
           <tr><td class="fichetitre2">Formation: </td><td>
-         <a href="Notes/ue_list?formation_id=%(formation_id)s" class="discretelink" title="Formation %(acronyme)s, v%(version)s">%(titre)s</a>"""
-        % F,
+         <a href="{url_for('notes.ue_list', scodoc_dept=g.scodoc_dept, formation_id=F['formation_id'])}"
+         class="discretelink" title="Formation {F['acronyme']}, v{F['version']}">{F['titre']}</a>""",
     ]
     if sem["semestre_id"] >= 0:
         H.append(", %s %s" % (parcours.SESSION_NAME, sem["semestre_id"]))
@@ -947,10 +948,13 @@ Il y a des notes en attente ! Le classement des étudiants n'a qu'une valeur ind
 </td></tr>"""
         )
     H.append("</table>")
+    sem_warning = ""
     if sem["bul_hide_xml"]:
-        H.append(
-            '<p class="fontorange"><em>Bulletins non publiés sur le portail</em></p>'
-        )
+        sem_warning += "Bulletins non publiés sur le portail. "
+    if sem["block_moyennes"]:
+        sem_warning += "Calcul des moyennes bloqué !"
+    if sem_warning:
+        H.append('<p class="fontorange"><em>' + sem_warning + "</em></p>")
     if sem["semestre_id"] >= 0 and not sco_formsemestre.sem_une_annee(sem):
         H.append(
             '<p class="fontorange"><em>Attention: ce semestre couvre plusieurs années scolaires !</em></p>'
diff --git a/app/scodoc/sco_groups.py b/app/scodoc/sco_groups.py
index 18c53e734c..5277ea5a01 100644
--- a/app/scodoc/sco_groups.py
+++ b/app/scodoc/sco_groups.py
@@ -1499,7 +1499,7 @@ def _sortgroups(groups):
     # Tri: place 'all' en tête, puis groupe par partition / nom de groupe
     R = [g for g in groups if g["partition_name"] is None]
     o = [g for g in groups if g["partition_name"] != None]
-    o.sort(key=lambda x: (x["numero"], x["group_name"]))
+    o.sort(key=lambda x: (x["numero"] or 0, x["group_name"]))
 
     return R + o
 
diff --git a/app/scodoc/sco_groups_view.py b/app/scodoc/sco_groups_view.py
index 7ca1788f15..8226b49fce 100644
--- a/app/scodoc/sco_groups_view.py
+++ b/app/scodoc/sco_groups_view.py
@@ -477,6 +477,9 @@ def groups_table(
             [(p["partition_id"], p["partition_name"]) for p in groups_infos.partitions]
         )
     )
+    partitions_name = {
+        p["partition_id"]: p["partition_name"] for p in groups_infos.partitions
+    }
 
     if format != "html":  # ne mentionne l'état que en Excel (style en html)
         columns_ids.append("etat")
@@ -500,11 +503,7 @@ def groups_table(
     if with_annotations:
         sco_etud.add_annotations_to_etud_list(groups_infos.members)
         columns_ids += ["annotations_str"]
-
-    if groups_infos.formsemestre["semestre_id"] >= 0:
-        moodle_sem_name = "S%d" % groups_infos.formsemestre["semestre_id"]
-    else:
-        moodle_sem_name = "A"  # pas de semestre spécifié, que faire ?
+    moodle_sem_name = groups_infos.formsemestre["session_id"]
     moodle_groupenames = set()
     # ajoute liens
     for etud in groups_infos.members:
@@ -529,23 +528,27 @@ def groups_table(
         # et groupes:
         for partition_id in etud["partitions"]:
             etud[partition_id] = etud["partitions"][partition_id]["group_name"]
-        # Ajoute colonne pour moodle: semestre_groupe, de la forme S1-NomgroupeXXX
+        # Ajoute colonne pour moodle: semestre_groupe, de la forme RT-DUT-FI-S3-2021-PARTITION-GROUPE
         moodle_groupename = []
         if groups_infos.selected_partitions:
             # il y a des groupes selectionnes, utilise leurs partitions
             for partition_id in groups_infos.selected_partitions:
                 if partition_id in etud["partitions"]:
                     moodle_groupename.append(
-                        etud["partitions"][partition_id]["group_name"]
+                        partitions_name[partition_id]
+                        + "-"
+                        + etud["partitions"][partition_id]["group_name"]
                     )
         else:
             # pas de groupes sélectionnés: prend le premier s'il y en a un
+            moodle_groupename = ["tous"]
             if etud["partitions"]:
                 for p in etud["partitions"].items():  # partitions is an OrderedDict
+                    moodle_groupename = [
+                        partitions_name[p[0]] + "-" + p[1]["group_name"]
+                    ]
                     break
-                moodle_groupename = [p[1]["group_name"]]
-            else:
-                moodle_groupename = ["tous"]
+
         moodle_groupenames |= set(moodle_groupename)
         etud["semestre_groupe"] = moodle_sem_name + "-" + "+".join(moodle_groupename)
 
@@ -706,7 +709,7 @@ def groups_table(
     ):
         if format == "moodlecsv":
             format = "csv"
-        return tab.make_page(format=format, REQUEST=REQUEST)
+        return tab.make_page(format=format)
 
     elif format == "xlsappel":
         xls = sco_excel.excel_feuille_listeappel(
@@ -935,7 +938,7 @@ def form_choix_saisie_semaine(groups_infos, REQUEST=None):
     return "\n".join(FA)
 
 
-def export_groups_as_moodle_csv(formsemestre_id=None, REQUEST=None):
+def export_groups_as_moodle_csv(formsemestre_id=None):
     """Export all students/groups, in a CSV format suitable for Moodle
     Each (student,group) will be listed on a separate line
     jo@univ.fr,S3-A
@@ -977,4 +980,4 @@ def export_groups_as_moodle_csv(formsemestre_id=None, REQUEST=None):
         text_with_titles=prefs["moodle_csv_with_headerline"],
         preferences=prefs,
     )
-    return tab.make_page(format="csv", REQUEST=REQUEST)
+    return tab.make_page(format="csv")
diff --git a/app/scodoc/sco_inscr_passage.py b/app/scodoc/sco_inscr_passage.py
index 60787c5f91..04cd2dcd6c 100644
--- a/app/scodoc/sco_inscr_passage.py
+++ b/app/scodoc/sco_inscr_passage.py
@@ -139,18 +139,22 @@ def list_etuds_from_sem(src, dst):
 
 def list_inscrits_date(sem):
     """Liste les etudiants inscrits dans n'importe quel semestre
+    du même département
     SAUF sem à la date de début de sem.
     """
     cnx = ndb.GetDBConnexion()
     cursor = cnx.cursor(cursor_factory=ndb.ScoDocCursor)
     sem["date_debut_iso"] = ndb.DateDMYtoISO(sem["date_debut"])
     cursor.execute(
-        """SELECT I.etudid
-        FROM notes_formsemestre_inscription I, notes_formsemestre S
-        WHERE I.formsemestre_id = S.id
+        """SELECT ins.etudid
+        FROM
+            notes_formsemestre_inscription ins,
+            notes_formsemestre S
+        WHERE ins.formsemestre_id = S.id
         AND S.id != %(formsemestre_id)s
         AND S.date_debut <= %(date_debut_iso)s
         AND S.date_fin >= %(date_debut_iso)s
+        AND S.dept_id = %(dept_id)s
         """,
         sem,
     )
diff --git a/app/scodoc/sco_liste_notes.py b/app/scodoc/sco_liste_notes.py
index 9d96c77c91..9932b9c828 100644
--- a/app/scodoc/sco_liste_notes.py
+++ b/app/scodoc/sco_liste_notes.py
@@ -27,8 +27,8 @@
 
 """Liste des notes d'une évaluation
 """
-import six.moves.urllib.request, six.moves.urllib.parse, six.moves.urllib.error
 from operator import itemgetter
+import urllib
 
 import flask
 from flask import url_for, g
@@ -50,6 +50,7 @@ from app.scodoc import sco_groups
 from app.scodoc import sco_moduleimpl
 from app.scodoc import sco_preferences
 from app.scodoc import sco_etud
+from app.scodoc import sco_users
 import sco_version
 from app.scodoc.gen_tables import GenTable
 from app.scodoc.htmlutils import histogram_notes
@@ -481,7 +482,7 @@ def _make_table_notes(
         # html_generate_cells=False # la derniere ligne (moyennes) est incomplete
     )
 
-    t = tab.make_page(format=format, with_html_headers=False, REQUEST=REQUEST)
+    t = tab.make_page(format=format, with_html_headers=False)
     if format != "html":
         return t
 
@@ -569,7 +570,7 @@ def _add_eval_columns(
                 comment = ""
             explanation = "%s (%s) %s" % (
                 NotesDB[etudid]["date"].strftime("%d/%m/%y %Hh%M"),
-                NotesDB[etudid]["uid"],
+                sco_users.user_info(NotesDB[etudid]["uid"])["nomcomplet"],
                 comment,
             )
         else:
@@ -816,8 +817,8 @@ def evaluation_check_absences_html(
                     '<a class="stdlink" href="Absences/doSignaleAbsence?etudid=%s&datedebut=%s&datefin=%s&demijournee=%s&moduleimpl_id=%s">signaler cette absence</a>'
                     % (
                         etud["etudid"],
-                        six.moves.urllib.parse.quote(E["jour"]),
-                        six.moves.urllib.parse.quote(E["jour"]),
+                        urllib.parse.quote(E["jour"]),
+                        urllib.parse.quote(E["jour"]),
                         demijournee,
                         E["moduleimpl_id"],
                     )
diff --git a/app/scodoc/sco_lycee.py b/app/scodoc/sco_lycee.py
index 677738f7b9..99f939b4e8 100644
--- a/app/scodoc/sco_lycee.py
+++ b/app/scodoc/sco_lycee.py
@@ -85,7 +85,7 @@ def scodoc_table_etuds_lycees(format="html", REQUEST=None):
         no_links=True,
     )
     tab.base_url = REQUEST.URL0
-    t = tab.make_page(format=format, with_html_headers=False, REQUEST=REQUEST)
+    t = tab.make_page(format=format, with_html_headers=False)
     if format != "html":
         return t
     H = [
@@ -192,7 +192,7 @@ def formsemestre_etuds_lycees(
         tab.base_url += "&only_primo=1"
     if no_grouping:
         tab.base_url += "&no_grouping=1"
-    t = tab.make_page(format=format, with_html_headers=False, REQUEST=REQUEST)
+    t = tab.make_page(format=format, with_html_headers=False)
     if format != "html":
         return t
     F = [
diff --git a/app/scodoc/sco_moduleimpl_inscriptions.py b/app/scodoc/sco_moduleimpl_inscriptions.py
index ce1d972c1d..91650d4891 100644
--- a/app/scodoc/sco_moduleimpl_inscriptions.py
+++ b/app/scodoc/sco_moduleimpl_inscriptions.py
@@ -529,10 +529,10 @@ def do_etud_desinscrit_ue(etudid, formsemestre_id, ue_id, REQUEST=None):
     cnx = ndb.GetDBConnexion()
     cursor = cnx.cursor(cursor_factory=ndb.ScoDocCursor)
     cursor.execute(
-        """DELETE FROM notes_moduleimpl_inscription 
+        """DELETE FROM notes_moduleimpl_inscription
     WHERE moduleimpl_inscription_id IN (
       SELECT i.moduleimpl_inscription_id FROM
-        notes_moduleimpl mi, notes_modules mod, 
+        notes_moduleimpl mi, notes_modules mod,
         notes_formsemestre sem, notes_moduleimpl_inscription i
       WHERE sem.formsemestre_id = %(formsemestre_id)s
       AND mi.formsemestre_id = sem.formsemestre_id
diff --git a/app/scodoc/sco_moduleimpl_status.py b/app/scodoc/sco_moduleimpl_status.py
index 94b10ad24b..320cf55488 100644
--- a/app/scodoc/sco_moduleimpl_status.py
+++ b/app/scodoc/sco_moduleimpl_status.py
@@ -28,7 +28,7 @@
 """Tableau de bord module
 """
 import time
-import six.moves.urllib.request, six.moves.urllib.parse, six.moves.urllib.error
+import urllib
 
 from flask import g, url_for
 from flask_login import current_user
@@ -137,7 +137,7 @@ def moduleimpl_evaluation_menu(evaluation_id, nbnotes=0, REQUEST=None):
             "title": "Absences ce jour",
             "endpoint": "absences.EtatAbsencesDate",
             "args": {
-                "date": six.moves.urllib.parse.quote(E["jour"], safe=""),
+                "date": urllib.parse.quote(E["jour"], safe=""),
                 "group_ids": group_id,
             },
             "enabled": E["jour"],
diff --git a/app/scodoc/sco_permissions.py b/app/scodoc/sco_permissions.py
index 4eee09daba..a1a06aba8c 100644
--- a/app/scodoc/sco_permissions.py
+++ b/app/scodoc/sco_permissions.py
@@ -45,13 +45,20 @@ class Permission(object):
     NBITS = 1  # maximum bits used (for formatting)
     ALL_PERMISSIONS = [-1]
     description = {}  # { symbol : blah blah }
+    permission_by_name = {}  # { symbol : int }
 
     @staticmethod
     def init_permissions():
         for (perm, symbol, description) in _SCO_PERMISSIONS:
             setattr(Permission, symbol, perm)
             Permission.description[symbol] = description
+            Permission.permission_by_name[symbol] = perm
         Permission.NBITS = len(_SCO_PERMISSIONS)
 
+    @staticmethod
+    def get_by_name(permission_name: str) -> int:
+        """Return permission mode (integer bit field), or None if it doesn't exist."""
+        return Permission.permission_by_name.get(permission_name)
+
 
 Permission.init_permissions()
diff --git a/app/scodoc/sco_poursuite_dut.py b/app/scodoc/sco_poursuite_dut.py
index bbc39e1e55..b2fb7d11ad 100644
--- a/app/scodoc/sco_poursuite_dut.py
+++ b/app/scodoc/sco_poursuite_dut.py
@@ -217,6 +217,5 @@ def formsemestre_poursuite_report(formsemestre_id, format="html", REQUEST=None):
         init_qtip=True,
         javascripts=["js/etud_info.js"],
         format=format,
-        REQUEST=REQUEST,
         with_html_headers=True,
     )
diff --git a/app/scodoc/sco_preferences.py b/app/scodoc/sco_preferences.py
index 26ff4ec2d3..779506f1fc 100644
--- a/app/scodoc/sco_preferences.py
+++ b/app/scodoc/sco_preferences.py
@@ -112,6 +112,7 @@ get_base_preferences(formsemestre_id)
 """
 import flask
 from flask import g, url_for
+from flask_login import current_user
 
 from app.models import Departement
 from app.scodoc import sco_cache
@@ -180,7 +181,7 @@ def _convert_pref_type(p, pref_spec):
 
 def _get_pref_default_value_from_config(name, pref_spec):
     """get default value store in application level config.
-    If not found, use defalut value hardcoded in pref_spec.
+    If not found, use default value hardcoded in pref_spec.
     """
     # XXX va changer avec la nouvelle base
     # search in scu.CONFIG
@@ -1408,7 +1409,7 @@ class BasePreferences(object):
                 {
                     "initvalue": 1,
                     "title": "Indique si les bulletins sont publiés",
-                    "explanation": "décocher si vous n'avez pas de portal étudiant publiant les bulletins",
+                    "explanation": "décocher si vous n'avez pas de portail étudiant publiant les bulletins",
                     "input_type": "boolcheckbox",
                     "labels": ["non", "oui"],
                     "category": "bul",
@@ -1891,7 +1892,7 @@ class BasePreferences(object):
 
     def get(self, formsemestre_id, name):
         """Returns preference value.
-        If global_lookup, when no value defined for this semestre, returns global value.
+        when no value defined for this semestre, returns global value.
         """
         params = {
             "dept_id": self.dept_id,
@@ -1901,7 +1902,7 @@ class BasePreferences(object):
         cnx = ndb.GetDBConnexion()
         plist = self._editor.list(cnx, params)
         if not plist:
-            del params["formsemestre_id"]
+            params["formsemestre_id"] = None
             plist = self._editor.list(cnx, params)
             if not plist:
                 return self.default[name]
@@ -2022,7 +2023,9 @@ class BasePreferences(object):
             html_sco_header.sco_header(page_title="Préférences"),
             "<h2>Préférences globales pour %s</h2>" % scu.ScoURL(),
             f"""<p><a href="{url_for("scolar.config_logos", scodoc_dept=g.scodoc_dept)
-            }">modification des logos du département (pour documents pdf)</a></p>""",
+            }">modification des logos du département (pour documents pdf)</a></p>"""
+            if current_user.is_administrator()
+            else "",
             """<p class="help">Ces paramètres s'appliquent par défaut à tous les semestres, sauf si ceux-ci définissent des valeurs spécifiques.</p>
               <p class="msg">Attention: cliquez sur "Enregistrer les modifications" en bas de page pour appliquer vos changements !</p>
               """,
@@ -2253,7 +2256,7 @@ function set_global_pref(el, pref_name) {
 
 #
 def doc_preferences():
-    """ Liste les preferences en MarkDown, pour la documentation"""
+    """Liste les preferences en MarkDown, pour la documentation"""
     L = []
     for cat, cat_descr in PREF_CATEGORIES:
         L.append([""])
diff --git a/app/scodoc/sco_pvjury.py b/app/scodoc/sco_pvjury.py
index f06180f4e4..affe43f40a 100644
--- a/app/scodoc/sco_pvjury.py
+++ b/app/scodoc/sco_pvjury.py
@@ -535,7 +535,6 @@ def formsemestre_pvjury(formsemestre_id, format="html", publish=True, REQUEST=No
         return tab.make_page(
             format=format,
             with_html_headers=False,
-            REQUEST=REQUEST,
             publish=publish,
         )
     tab.base_url = "%s?formsemestre_id=%s" % (REQUEST.URL0, formsemestre_id)
diff --git a/app/scodoc/sco_recapcomplet.py b/app/scodoc/sco_recapcomplet.py
index 86579f8c67..a01a60590e 100644
--- a/app/scodoc/sco_recapcomplet.py
+++ b/app/scodoc/sco_recapcomplet.py
@@ -27,8 +27,9 @@
 
 """Tableau recapitulatif des notes d'un semestre
 """
-import time
 import datetime
+import json
+import time
 from xml.etree import ElementTree
 
 import app.scodoc.sco_utils as scu
@@ -227,11 +228,14 @@ def do_formsemestre_recapcomplet(
     if format == "xml" or format == "html":
         return data
     elif format == "csv":
-        return scu.sendCSVFile(REQUEST, data, filename)
-    elif format[:3] == "xls":
-        return sco_excel.send_excel_file(REQUEST, data, filename)
+        return scu.send_file(data, filename=filename, mime=scu.CSV_MIMETYPE)
+    elif format[:3] == "xls" or format[:3] == "xlsx":
+        return scu.send_file(data, filename=filename, mime=scu.XLSX_MIMETYPE)
     elif format == "json":
-        return scu.sendJSON(REQUEST, data)
+        js = json.dumps(data, indent=1, cls=scu.ScoDocJSONEncoder)
+        return scu.send_file(
+            js, filename=filename, suffix=scu.JSON_SUFFIX, mime=scu.JSON_MIMETYPE
+        )
     else:
         raise ValueError("unknown format %s" % format)
 
diff --git a/app/scodoc/sco_report.py b/app/scodoc/sco_report.py
index 2bf2fa1e93..193b0eb66a 100644
--- a/app/scodoc/sco_report.py
+++ b/app/scodoc/sco_report.py
@@ -355,7 +355,6 @@ def formsemestre_report_counts(
     t = tab.make_page(
         title="""<h2 class="formsemestre">Comptes croisés</h2>""",
         format=format,
-        REQUEST=REQUEST,
         with_html_headers=False,
     )
     if format != "html":
@@ -722,7 +721,7 @@ def formsemestre_suivi_cohorte(
     )
     if only_primo:
         tab.base_url += "&only_primo=on"
-    t = tab.make_page(format=format, with_html_headers=False, REQUEST=REQUEST)
+    t = tab.make_page(format=format, with_html_headers=False)
     if format != "html":
         return t
 
@@ -1210,7 +1209,7 @@ def formsemestre_suivi_parcours(
         tab.base_url += "&only_primo=1"
     if no_grouping:
         tab.base_url += "&no_grouping=1"
-    t = tab.make_page(format=format, with_html_headers=False, REQUEST=REQUEST)
+    t = tab.make_page(format=format, with_html_headers=False)
     if format != "html":
         return t
     F = [
diff --git a/app/scodoc/sco_roles_default.py b/app/scodoc/sco_roles_default.py
index 0670bc8062..6f8d79eeea 100644
--- a/app/scodoc/sco_roles_default.py
+++ b/app/scodoc/sco_roles_default.py
@@ -9,48 +9,50 @@ from app.scodoc.sco_permissions import Permission as p
 SCO_ROLES_DEFAULTS = {
     "Observateur": (p.ScoObservateur,),
     "Ens": (
-        p.ScoObservateur,
-        p.ScoView,
-        p.ScoEnsView,
-        p.ScoUsersView,
-        p.ScoEtudAddAnnotations,
-        p.ScoAbsChange,
         p.ScoAbsAddBillet,
+        p.ScoAbsChange,
+        p.ScoEnsView,
         p.ScoEntrepriseView,
+        p.ScoEtudAddAnnotations,
+        p.ScoObservateur,
+        p.ScoUsersView,
+        p.ScoView,
     ),
     "Secr": (
-        p.ScoObservateur,
-        p.ScoView,
-        p.ScoUsersView,
-        p.ScoEtudAddAnnotations,
-        p.ScoAbsChange,
         p.ScoAbsAddBillet,
-        p.ScoEntrepriseView,
+        p.ScoAbsChange,
+        p.ScoEditApo,
         p.ScoEntrepriseChange,
+        p.ScoEntrepriseView,
+        p.ScoEtudAddAnnotations,
         p.ScoEtudChangeAdr,
+        p.ScoObservateur,
+        p.ScoUsersView,
+        p.ScoView,
     ),
     # Admin est le chef du département, pas le "super admin"
     # on doit donc lister toutes ses permissions:
     "Admin": (
-        p.ScoObservateur,
-        p.ScoView,
-        p.ScoEnsView,
-        p.ScoUsersView,
-        p.ScoEtudAddAnnotations,
-        p.ScoAbsChange,
         p.ScoAbsAddBillet,
-        p.ScoEntrepriseView,
-        p.ScoEntrepriseChange,
-        p.ScoEtudChangeAdr,
+        p.ScoAbsChange,
         p.ScoChangeFormation,
-        p.ScoEditFormationTags,
-        p.ScoEditAllNotes,
+        p.ScoChangePreferences,
         p.ScoEditAllEvals,
-        p.ScoImplement,
+        p.ScoEditAllNotes,
+        p.ScoEditApo,
+        p.ScoEditFormationTags,
+        p.ScoEnsView,
+        p.ScoEntrepriseChange,
+        p.ScoEntrepriseView,
+        p.ScoEtudAddAnnotations,
+        p.ScoEtudChangeAdr,
         p.ScoEtudChangeGroups,
         p.ScoEtudInscrit,
+        p.ScoImplement,
+        p.ScoObservateur,
         p.ScoUsersAdmin,
-        p.ScoChangePreferences,
+        p.ScoUsersView,
+        p.ScoView,
     ),
     # RespPE est le responsable poursuites d'études
     # il peut ajouter des tags sur les formations:
diff --git a/app/scodoc/sco_saisie_notes.py b/app/scodoc/sco_saisie_notes.py
index faba5e2c60..3cd47d5416 100644
--- a/app/scodoc/sco_saisie_notes.py
+++ b/app/scodoc/sco_saisie_notes.py
@@ -494,9 +494,10 @@ def _notes_add(user, evaluation_id: int, notes: list, comment=None, do_it=True):
                         }
                         ndb.quote_dict(aa)
                         cursor.execute(
-                            """INSERT INTO notes_notes 
-                            (etudid,evaluation_id,value,comment,date,uid) 
-                            VALUES (%(etudid)s,%(evaluation_id)s,%(value)s,%(comment)s,%(date)s,%(uid)s)""",
+                            """INSERT INTO notes_notes
+                            (etudid, evaluation_id, value, comment, date, uid)
+                            VALUES (%(etudid)s,%(evaluation_id)s,%(value)s,%(comment)s,%(date)s,%(uid)s)
+                            """,
                             aa,
                         )
                     changed = True
@@ -515,10 +516,10 @@ def _notes_add(user, evaluation_id: int, notes: list, comment=None, do_it=True):
                     # recopie l'ancienne note dans notes_notes_log, puis update
                     if do_it:
                         cursor.execute(
-                            """INSERT INTO notes_notes_log 
+                            """INSERT INTO notes_notes_log
                                 (etudid,evaluation_id,value,comment,date,uid) 
                             SELECT etudid, evaluation_id, value, comment, date, uid
-                            FROM notes_notes 
+                            FROM notes_notes
                             WHERE etudid=%(etudid)s 
                             and evaluation_id=%(evaluation_id)s
                             """,
@@ -536,8 +537,8 @@ def _notes_add(user, evaluation_id: int, notes: list, comment=None, do_it=True):
                     if value != scu.NOTES_SUPPRESS:
                         if do_it:
                             cursor.execute(
-                                """UPDATE notes_notes 
-                                SET value=%(value)s, comment=%(comment)s, date=%(date)s, uid=%(uid)s 
+                                """UPDATE notes_notes
+                                SET value=%(value)s, comment=%(comment)s, date=%(date)s, uid=%(uid)s
                                 WHERE etudid = %(etudid)s 
                                 and evaluation_id = %(evaluation_id)s
                                 """,
@@ -550,7 +551,7 @@ def _notes_add(user, evaluation_id: int, notes: list, comment=None, do_it=True):
                                 % (evaluation_id, etudid, oldval)
                             )
                             cursor.execute(
-                                """DELETE FROM notes_notes 
+                                """DELETE FROM notes_notes
                                 WHERE etudid = %(etudid)s 
                                 AND evaluation_id = %(evaluation_id)s
                                 """,
@@ -589,18 +590,17 @@ def _notes_add(user, evaluation_id: int, notes: list, comment=None, do_it=True):
 
 def saisie_notes_tableur(evaluation_id, group_ids=[], REQUEST=None):
     """Saisie des notes via un fichier Excel"""
-    authuser = REQUEST.AUTHENTICATED_USER
-    authusername = str(authuser)
     evals = sco_evaluations.do_evaluation_list({"evaluation_id": evaluation_id})
     if not evals:
         raise ScoValueError("invalid evaluation_id")
     E = evals[0]
     M = sco_moduleimpl.do_moduleimpl_list(moduleimpl_id=E["moduleimpl_id"])[0]
     formsemestre_id = M["formsemestre_id"]
-    if not sco_permissions_check.can_edit_notes(authuser, E["moduleimpl_id"]):
+    if not sco_permissions_check.can_edit_notes(current_user, E["moduleimpl_id"]):
         return (
             html_sco_header.sco_header()
-            + "<h2>Modification des notes impossible pour %s</h2>" % authusername
+            + "<h2>Modification des notes impossible pour %s</h2>"
+            % current_user.user_name
             + """<p>(vérifiez que le semestre n'est pas verrouillé et que vous
                avez l'autorisation d'effectuer cette opération)</p>
                <p><a href="moduleimpl_status?moduleimpl_id=%s">Continuer</a></p>
@@ -858,9 +858,7 @@ def has_existing_decision(M, E, etudid):
 
 def saisie_notes(evaluation_id, group_ids=[], REQUEST=None):
     """Formulaire saisie notes d'une évaluation pour un groupe"""
-    authuser = REQUEST.AUTHENTICATED_USER
-    authusername = str(authuser)
-
+    group_ids = [int(group_id) for group_id in group_ids]
     evals = sco_evaluations.do_evaluation_list({"evaluation_id": evaluation_id})
     if not evals:
         raise ScoValueError("invalid evaluation_id")
@@ -871,10 +869,11 @@ def saisie_notes(evaluation_id, group_ids=[], REQUEST=None):
     formsemestre_id = M["formsemestre_id"]
     # Check access
     # (admin, respformation, and responsable_id)
-    if not sco_permissions_check.can_edit_notes(authuser, E["moduleimpl_id"]):
+    if not sco_permissions_check.can_edit_notes(current_user, E["moduleimpl_id"]):
         return (
             html_sco_header.sco_header()
-            + "<h2>Modification des notes impossible pour %s</h2>" % authusername
+            + "<h2>Modification des notes impossible pour %s</h2>"
+            % current_user.user_name
             + """<p>(vérifiez que le semestre n'est pas verrouillé et que vous
                avez l'autorisation d'effectuer cette opération)</p>
                <p><a href="moduleimpl_status?moduleimpl_id=%s">Continuer</a></p>
@@ -1154,9 +1153,9 @@ def _form_saisie_notes(E, M, group_ids, destination="", REQUEST=None):
                     "attributes": [
                         'class="note%s"' % classdem,
                         disabled_attr,
-                        "data-last-saved-value=%s" % e["val"],
-                        "data-orig-value=%s" % e["val"],
-                        "data-etudid=%s" % etudid,
+                        'data-last-saved-value="%s"' % e["val"],
+                        'data-orig-value="%s"' % e["val"],
+                        'data-etudid="%s"' % etudid,
                     ],
                     "template": """<tr%(item_dom_attr)s class="etud_elem """
                     + " ".join(etud_classes)
@@ -1290,7 +1289,7 @@ def get_note_history_menu(evaluation_id, etudid):
             nv = ""  # ne repete pas la valeur de la note courante
         else:
             # ancienne valeur
-            nv = '<span class="histvalue">: %s</span>' % dispnote
+            nv = ": %s" % dispnote
         first = False
         if i["comment"]:
             comment = ' <span class="histcomment">%s</span>' % i["comment"]
diff --git a/app/scodoc/sco_semset.py b/app/scodoc/sco_semset.py
index e8be6bd6c0..23a4c6e240 100644
--- a/app/scodoc/sco_semset.py
+++ b/app/scodoc/sco_semset.py
@@ -418,7 +418,7 @@ def do_semset_remove_sem(semset_id, formsemestre_id):
 # ----------------------------------------
 
 
-def semset_page(format="html", REQUEST=None):
+def semset_page(format="html"):
     """Page avec liste semsets:
     Table avec : date_debut date_fin titre liste des semestres
     """
@@ -468,7 +468,7 @@ def semset_page(format="html", REQUEST=None):
         preferences=sco_preferences.SemPreferences(),
     )
     if format != "html":
-        return tab.make_page(format=format, REQUEST=REQUEST)
+        return tab.make_page(format=format)
 
     page_title = "Ensembles de semestres"
     H = [
diff --git a/app/scodoc/sco_synchro_etuds.py b/app/scodoc/sco_synchro_etuds.py
index b3a158f525..f3d928cb8a 100644
--- a/app/scodoc/sco_synchro_etuds.py
+++ b/app/scodoc/sco_synchro_etuds.py
@@ -400,7 +400,10 @@ def list_synch(sem, anneeapogee=None):
         def key2etud(key, etud_apo=False):
             if not etud_apo:
                 etudid = key2etudid[key]
-                etud = sco_etud.identite_list(cnx, {"etudid": etudid})[0]
+                etuds = sco_etud.identite_list(cnx, {"etudid": etudid})
+                if not etuds:  # ? cela ne devrait pas arriver XXX
+                    log(f"XXX key2etud etudid={{etudid}}, type {{type(etudid)}}")
+                etud = etuds[0]
                 etud["inscrit"] = is_inscrit  # checkbox state
                 etud[
                     "datefinalisationinscription"
@@ -508,7 +511,14 @@ def list_all(etudsapo_set):
     # d'interrogation par etudiant.
     cnx = ndb.GetDBConnexion()
     cursor = cnx.cursor(cursor_factory=ndb.ScoDocCursor)
-    cursor.execute("SELECT " + EKEY_SCO + ", id AS etudid FROM identite")
+    cursor.execute(
+        "SELECT "
+        + EKEY_SCO
+        + """, id AS etudid
+        FROM identite WHERE dept_id=%(dept_id)s
+        """,
+        {"dept_id": g.scodoc_dept_id},
+    )
     key2etudid = dict([(x[0], x[1]) for x in cursor.fetchall()])
     all_set = set(key2etudid.keys())
 
diff --git a/app/scodoc/sco_undo_notes.py b/app/scodoc/sco_undo_notes.py
index 6afa68c088..79c16f7bd2 100644
--- a/app/scodoc/sco_undo_notes.py
+++ b/app/scodoc/sco_undo_notes.py
@@ -167,7 +167,7 @@ def evaluation_list_operations(evaluation_id, REQUEST=None):
         % (E["description"], E["jour"]),
         preferences=sco_preferences.SemPreferences(M["formsemestre_id"]),
     )
-    return tab.make_page(REQUEST=REQUEST)
+    return tab.make_page()
 
 
 def formsemestre_list_saisies_notes(formsemestre_id, format="html", REQUEST=None):
@@ -222,7 +222,7 @@ def formsemestre_list_saisies_notes(formsemestre_id, format="html", REQUEST=None
         + scu.timedate_human_repr()
         + "",
     )
-    return tab.make_page(format=format, REQUEST=REQUEST)
+    return tab.make_page(format=format)
 
 
 def get_note_history(evaluation_id, etudid, REQUEST=None, fmt=""):
diff --git a/app/scodoc/sco_users.py b/app/scodoc/sco_users.py
index f7eee67311..a45cce4525 100644
--- a/app/scodoc/sco_users.py
+++ b/app/scodoc/sco_users.py
@@ -217,7 +217,7 @@ def list_users(
         preferences=sco_preferences.SemPreferences(),
     )
 
-    return tab.make_page(format=format, with_html_headers=False, REQUEST=REQUEST)
+    return tab.make_page(format=format, with_html_headers=False)
 
 
 def get_user_list(dept=None, with_inactives=False):
@@ -258,6 +258,7 @@ def user_info(user_name_or_id=None, user=None):
             info = u.to_dict()
         else:
             info = None
+            user_name = "inconnu"
     else:
         info = user.to_dict()
         user_name = user.user_name
diff --git a/app/static/css/scodoc.css b/app/static/css/scodoc.css
index 4a0235579b..a537bb96f9 100644
--- a/app/static/css/scodoc.css
+++ b/app/static/css/scodoc.css
@@ -2612,7 +2612,8 @@ div.maindiv {
    margin: 1em;
 }
 ul.main {
-   list-style-type: square;
+  list-style-type: square;
+  margin-top: 1em;
 }
 
 ul.main li {
diff --git a/app/static/icons/favicon.ico b/app/static/icons/favicon.ico
new file mode 100644
index 0000000000..8838dfa117
Binary files /dev/null and b/app/static/icons/favicon.ico differ
diff --git a/app/templates/about.html b/app/templates/about.html
new file mode 100644
index 0000000000..2dc506915d
--- /dev/null
+++ b/app/templates/about.html
@@ -0,0 +1,25 @@
+{% extends 'base.html' %}
+{% import 'bootstrap/wtf.html' as wtf %}
+
+{% block app_content %}
+
+<h2>Système de gestion scolarité</h2>
+
+<p>&copy; Emmanuel Viennet 2021</p>
+
+<p>Version {{ version }}</p>
+    
+<p>ScoDoc est un logiciel libre écrit en 
+<a href="http://www.python.org" target="_blank" rel="noopener noreferrer">Python</a>.
+Information et documentation sur <a href="https://scodoc.org" target="_blank">scodoc.org</a>.
+</p>
+
+<h2>Dernières évolutions</h2>
+
+{{ news|safe }}
+
+<div class="about-logo">
+    {{ logo|safe }}
+</div>
+
+{% endblock %}
\ No newline at end of file
diff --git a/app/templates/auth/login.html b/app/templates/auth/login.html
index 6b775b7383..2685383dba 100644
--- a/app/templates/auth/login.html
+++ b/app/templates/auth/login.html
@@ -2,14 +2,19 @@
 {% import 'bootstrap/wtf.html' as wtf %}
 
 {% block app_content %}
-<h1>Sign In</h1>
+<h1>Connexion</h1>
 <div class="row">
     <div class="col-md-4">
         {{ wtf.quick_form(form) }}
     </div>
 </div>
 <br>
-Forgot Your Password?
-<a href="{{ url_for('auth.reset_password_request') }}">Click to Reset It</a>
+En cas d'oubli de votre mot de passe
+<a href="{{ url_for('auth.reset_password_request') }}">cliquez ici pour le réinitialiser</a>.
 </p>
+
+
+<p class="help">L'accès à ScoDoc est strictement réservé aux personnels de
+    l'établissement. Les étudiants n'y ont pas accès. Pour toute information,
+    contactez la personne responsable de votre établissement.</p>
 {% endblock %}
\ No newline at end of file
diff --git a/app/templates/error_500.html b/app/templates/error_500.html
index e093a6afa4..2396337622 100644
--- a/app/templates/error_500.html
+++ b/app/templates/error_500.html
@@ -11,7 +11,7 @@
     ou écrire la liste "notes" <a href="mailto:notes@listes.univ-paris13.fr">notes@listes.univ-paris13.fr</a> en
     indiquant la version du logiciel
     <br />
-    (plus d'informations sur les listes de diffusion<a href="https://scodoc.org/ListesDeDiffusion/">voir
+    (plus d'informations sur les listes de diffusion <a href="https://scodoc.org/ListesDeDiffusion/">voir
         cette page</a>).
 </p>
 
diff --git a/app/templates/error_503.html b/app/templates/error_503.html
index ba0ef9e049..723a87179a 100644
--- a/app/templates/error_503.html
+++ b/app/templates/error_503.html
@@ -24,9 +24,9 @@
 
         <p> Si le problème persiste après intervention de votre équipe locale,
             contacter la liste "notes" <a href="mailto:notes@listes.univ-paris13.fr">notes@listes.univ-paris13.fr</a> en
-            indiquant la version du logiciel (ScoDoc {SCOVERSION})
-            <br />(pour plus d'informations sur les listes de diffusion <a
-                href="https://scodoc.org/ListesDeDiffusion/">voir cette page</a>).
+            indiquant la version du logiciel (ScoDoc {{SCOVERSION}})
+            <br />(pour plus d'informations sur les listes de diffusion
+            <a href="https://scodoc.org/ListesDeDiffusion/">voir cette page</a>).
         </p>
 
     </body>
diff --git a/app/templates/scodoc.html b/app/templates/scodoc.html
index f48ad0f460..c0e1edddaf 100644
--- a/app/templates/scodoc.html
+++ b/app/templates/scodoc.html
@@ -2,7 +2,7 @@
 {% import 'bootstrap/wtf.html' as wtf %}
 
 {% block app_content %}
-<h2>ScoDoc: gestion scolarité (version béta)</h2>
+<h2>ScoDoc 9 - suivi scolarité</h2>
 
 {% if not current_user.is_anonymous %}
 <p>Bonjour <font color="red"><b>{{current_user.get_nomcomplet()}}</b>
@@ -24,10 +24,6 @@
     {% endfor %}
 </ul>
 
-<p>
-    <font color="red">Ceci est une version de test,
-        ne pas utiliser en production !</font>
-</p>
 
 {% if current_user.is_authenticated %}
 <form action="{{url_for('scodoc.table_etud_in_accessible_depts')}}" method="POST">
@@ -43,4 +39,9 @@
     <p><a href="/ScoDoc/static/mobile">Charger la version mobile (expérimentale)</a></p>
 </div> -->
 
+<div style="margin-top: 1cm;">
+    Service réservé aux personnels et enseignants, basé sur <a href="{{url_for('scodoc.about')}}">le logiciel libre
+        ScoDoc.</a>
+</div>
+
 {% endblock %}
\ No newline at end of file
diff --git a/app/templates/sidebar_dept.html b/app/templates/sidebar_dept.html
new file mode 100644
index 0000000000..e54cce792b
--- /dev/null
+++ b/app/templates/sidebar_dept.html
@@ -0,0 +1,12 @@
+<h2 class="insidebar">Dépt. {{ prefs["DeptName"] }}</h2>
+<a href="{{ url_for('scodoc.index') }}" class="sidebar">Accueil</a> <br/>
+    {% if prefs["DeptIntranetURL"] %}
+        <a href="{{ prefs["DeptIntranetURL"] }}" class="sidebar">
+        {{ prefs["DeptIntranetTitle"] }}</a>
+    {% endif %}
+<br/>
+
+{#  
+# Entreprises pas encore supporté en ScoDoc8
+#  <br/><a href="%(ScoURL)s/Entreprises" class="sidebar">Entreprises</a> <br/>
+#}
\ No newline at end of file
diff --git a/app/views/absences.py b/app/views/absences.py
index 294856bd0f..b6c463607a 100644
--- a/app/views/absences.py
+++ b/app/views/absences.py
@@ -47,20 +47,17 @@ L'API de plus bas niveau est en gros:
 """
 
 import calendar
-import cgi
 import datetime
 import dateutil
 import dateutil.parser
 import re
-import six.moves.urllib.request, six.moves.urllib.parse, six.moves.urllib.error
-import string
 import time
+import urllib
 from xml.etree import ElementTree
 
 import flask
 from flask import g
 from flask import url_for
-from flask import current_app
 
 from app.decorators import (
     scodoc,
@@ -79,7 +76,7 @@ from app.scodoc import notesdb as ndb
 from app import log
 from app.scodoc.scolog import logdb
 from app.scodoc.sco_permissions import Permission
-from app.scodoc.sco_exceptions import ScoValueError, ScoInvalidDateError
+from app.scodoc.sco_exceptions import ScoValueError, APIInvalidParams
 from app.scodoc.TrivialFormulator import TrivialFormulator
 from app.scodoc.gen_tables import GenTable
 from app.scodoc import html_sco_header
@@ -277,8 +274,9 @@ def doSignaleAbsenceGrSemestre(
     Efface les absences aux dates indiquées par dates,
     ou bien ajoute celles de abslist.
     """
+    moduleimpl_id = moduleimpl_id or None
     if etudids:
-        etudids = etudids.split(",")
+        etudids = [int(x) for x in str(etudids).split(",")]
     else:
         etudids = []
     if dates:
@@ -306,14 +304,14 @@ def doSignaleAbsenceGrSemestre(
 @permission_required(Permission.ScoAbsChange)
 @scodoc7func
 def SignaleAbsenceGrHebdo(
-    datelundi, group_ids=[], destination="", moduleimpl_id=None, REQUEST=None
+    datelundi, group_ids=[], destination="", moduleimpl_id=None, formsemestre_id=None
 ):
     "Saisie hebdomadaire des absences"
     if not moduleimpl_id:
         moduleimpl_id = None
 
     groups_infos = sco_groups_view.DisplayedGroupsInfos(
-        group_ids, moduleimpl_id=moduleimpl_id
+        group_ids, moduleimpl_id=moduleimpl_id, formsemestre_id=formsemestre_id
     )
     if not groups_infos.members:
         return (
@@ -325,7 +323,7 @@ def SignaleAbsenceGrHebdo(
     base_url = "SignaleAbsenceGrHebdo?datelundi=%s&%s&destination=%s" % (
         datelundi,
         groups_infos.groups_query_args,
-        six.moves.urllib.parse.quote(destination),
+        urllib.parse.quote(destination),
     )
 
     formsemestre_id = groups_infos.formsemestre_id
@@ -509,7 +507,7 @@ def SignaleAbsenceGrSemestre(
             datedebut,
             datefin,
             groups_infos.groups_query_args,
-            six.moves.urllib.parse.quote(destination),
+            urllib.parse.quote(destination),
         )
     )
     base_url = base_url_noweeks + "&nbweeks=%s" % nbweeks  # sans le moduleimpl_id
@@ -809,7 +807,7 @@ def _gen_form_saisie_groupe(
     H.append('<input type="hidden" name="dates" value="%s"/>' % ",".join(dates))
     H.append(
         '<input type="hidden" name="destination" value="%s"/>'
-        % six.moves.urllib.parse.quote(destination)
+        % urllib.parse.quote(destination)
     )
     #
     # version pour formulaire avec AJAX (Yann LB)
@@ -965,7 +963,7 @@ ou entrez une date pour visualiser les absents un jour donné&nbsp;:
                     """
         % (REQUEST.URL0, formsemestre_id, groups_infos.get_form_elem()),
     )
-    return tab.make_page(format=format, REQUEST=REQUEST)
+    return tab.make_page(format=format)
 
 
 @bp.route("/EtatAbsencesDate")
@@ -1101,7 +1099,7 @@ def AddBilletAbsence(
         billets = sco_abs.billet_absence_list(cnx, {"billet_id": billet_id})
         tab = _tableBillets(billets, etud=etud)
         log("AddBilletAbsence: new billet_id=%s (%gs)" % (billet_id, time.time() - t0))
-        return tab.make_page(REQUEST=REQUEST, format="xml")
+        return tab.make_page(format="xml")
     else:
         return billet_id
 
@@ -1232,7 +1230,7 @@ def listeBilletsEtud(etudid=False, REQUEST=None, format="html"):
     cnx = ndb.GetDBConnexion()
     billets = sco_abs.billet_absence_list(cnx, {"etudid": etud["etudid"]})
     tab = _tableBillets(billets, etud=etud)
-    return tab.make_page(REQUEST=REQUEST, format=format)
+    return tab.make_page(format=format)
 
 
 @bp.route(
@@ -1479,20 +1477,24 @@ def ProcessBilletAbsenceForm(billet_id, REQUEST=None):
 def XMLgetAbsEtud(beg_date="", end_date="", REQUEST=None):
     """returns list of absences in date interval"""
     t0 = time.time()
-    etud = sco_etud.get_etud_info(filled=False)[0]
+    etuds = sco_etud.get_etud_info(filled=False)
+    if not etuds:
+        raise APIInvalidParams("étudiant inconnu")
+        # raise ScoValueError("étudiant inconnu")
+    etud = etuds[0]
     exp = re.compile(r"^(\d{4})\D?(0[1-9]|1[0-2])\D?([12]\d|0[1-9]|3[01])$")
     if not exp.match(beg_date):
         raise ScoValueError("invalid date: %s" % beg_date)
     if not exp.match(end_date):
         raise ScoValueError("invalid date: %s" % end_date)
 
-    Abs = sco_abs.list_abs_date(etud["etudid"], beg_date, end_date)
+    abs_list = sco_abs.list_abs_date(etud["etudid"], beg_date, end_date)
 
     REQUEST.RESPONSE.setHeader("content-type", scu.XML_MIMETYPE)
     doc = ElementTree.Element(
-        "absences", etudid=etud["etudid"], beg_date=beg_date, end_date=end_date
+        "absences", etudid=str(etud["etudid"]), beg_date=beg_date, end_date=end_date
     )
-    for a in Abs:
+    for a in abs_list:
         if a["estabs"]:  # ne donne pas les justifications si pas d'absence
             doc.append(
                 ElementTree.Element(
@@ -1500,7 +1502,7 @@ def XMLgetAbsEtud(beg_date="", end_date="", REQUEST=None):
                     begin=a["begin"],
                     end=a["end"],
                     description=a["description"],
-                    justified=a["estjust"],
+                    justified=str(int(a["estjust"])),
                 )
             )
     log("XMLgetAbsEtud (%gs)" % (time.time() - t0))
diff --git a/app/views/entreprises.py b/app/views/entreprises.py
index b5568b61c7..e5bdf2d213 100644
--- a/app/views/entreprises.py
+++ b/app/views/entreprises.py
@@ -224,7 +224,7 @@ def index_html(REQUEST=None, etud_nom=None, limit=50, offset="", format="html"):
         preferences=context.get_preferences(),
     )
     if format != "html":
-        return tab.make_page(format=format, REQUEST=REQUEST)
+        return tab.make_page(format=format)
     else:
         H = [
             entreprise_header(REQUEST=REQUEST, page_title="Suivi entreprises"),
@@ -297,7 +297,7 @@ def entreprise_contact_list(entreprise_id=None, format="html", REQUEST=None):
         preferences=context.get_preferences(),
     )
     if format != "html":
-        return tab.make_page(format=format, REQUEST=REQUEST)
+        return tab.make_page(format=format)
 
     H.append(tab.html())
 
@@ -403,7 +403,7 @@ def entreprise_correspondant_list(
         preferences=context.get_preferences(),
     )
     if format != "html":
-        return tab.make_page(format=format, REQUEST=REQUEST)
+        return tab.make_page(format=format)
 
     H.append(tab.html())
 
diff --git a/app/views/notes.py b/app/views/notes.py
index f6d4e073b4..be4205c544 100644
--- a/app/views/notes.py
+++ b/app/views/notes.py
@@ -647,7 +647,11 @@ def XMLgetFormsemestres(etape_apo=None, formsemestre_id=None, REQUEST=None):
         REQUEST.RESPONSE.setHeader("content-type", scu.XML_MIMETYPE)
     doc = ElementTree.Element("formsemestrelist")
     for sem in sco_formsemestre.do_formsemestre_list(args=args):
-        doc.append("formsemestre", **sem)
+        for k in sem:
+            if isinstance(sem[k], int):
+                sem[k] = str(sem[k])
+        sem_elt = ElementTree.Element("formsemestre", **sem)
+        doc.append(sem_elt)
 
     return sco_xml.XML_HEADER + ElementTree.tostring(doc).decode(scu.SCO_ENCODING)
 
@@ -1086,7 +1090,7 @@ def view_module_abs(REQUEST, moduleimpl_id, format="html"):
     )
 
     if format != "html":
-        return tab.make_page(format=format, REQUEST=REQUEST)
+        return tab.make_page(format=format)
 
     return "\n".join(H) + tab.html() + html_sco_header.sco_footer()
 
@@ -1253,7 +1257,7 @@ def formsemestre_enseignants_list(REQUEST, formsemestre_id, format="html"):
         caption="Tous les enseignants (responsables ou associés aux modules de ce semestre) apparaissent. Le nombre de saisies d'absences est le nombre d'opérations d'ajout effectuées sur ce semestre, sans tenir compte des annulations ou double saisies.",
         preferences=sco_preferences.SemPreferences(formsemestre_id),
     )
-    return T.make_page(page_title=title, title=title, REQUEST=REQUEST, format=format)
+    return T.make_page(page_title=title, title=title, format=format)
 
 
 @bp.route("/edit_enseignants_form_delete", methods=["GET", "POST"])
diff --git a/app/views/scodoc.py b/app/views/scodoc.py
index 88aa7a1e78..5bfce95bdb 100644
--- a/app/views/scodoc.py
+++ b/app/views/scodoc.py
@@ -37,6 +37,7 @@ import flask
 from flask import abort, flash, url_for, redirect, render_template, send_file
 from flask import request
 from flask.app import Flask
+import flask_login
 from flask_login.utils import login_required
 from flask_wtf import FlaskForm
 from flask_wtf.file import FileField, FileAllowed
@@ -57,6 +58,7 @@ from app.scodoc import sco_utils as scu
 from app.decorators import (
     admin_required,
     scodoc7func,
+    scodoc,
     permission_required_compat_scodoc7,
 )
 from app.scodoc.sco_permissions import Permission
@@ -131,6 +133,43 @@ def get_etud_dept():
     return Departement.query.get(last_etud.dept_id).acronym
 
 
+# Bricolage pour le portail IUTV avec ScoDoc 7: (DEPRECATED: NE PAS UTILISER !)
+@bp.route(
+    "/ScoDoc/search_inscr_etud_by_nip", methods=["GET"]
+)  # pour compat anciens clients PHP
+@scodoc
+@scodoc7func
+def search_inscr_etud_by_nip(
+    code_nip, REQUEST=None, format="json", __ac_name="", __ac_password=""
+):
+    auth_ok = False
+    user_name = __ac_name
+    user_password = __ac_password
+    if user_name and user_password:
+        u = User.query.filter_by(user_name=user_name).first()
+        if u and u.check_password(user_password):
+            auth_ok = True
+            flask_login.login_user(u)
+    if not auth_ok:
+        abort(403)
+    else:
+        return sco_find_etud.search_inscr_etud_by_nip(
+            code_nip=code_nip, REQUEST=REQUEST, format=format
+        )
+
+
+@bp.route("/ScoDoc/about")
+@bp.route("/ScoDoc/Scolarite/<scodoc_dept>/about")
+def about(scodoc_dept=None):
+    "version info"
+    return render_template(
+        "about.html",
+        version=scu.get_scodoc_version(),
+        news=sco_version.SCONEWS,
+        logo=scu.icontag("borgne_img"),
+    )
+
+
 # ---- CONFIGURATION
 
 
diff --git a/app/views/scolar.py b/app/views/scolar.py
index f05b774820..043683f7a7 100644
--- a/app/views/scolar.py
+++ b/app/views/scolar.py
@@ -131,34 +131,6 @@ def sco_publish(route, function, permission, methods=["GET"]):
 # --------------------------------------------------------------------
 
 
-@bp.route("/about")
-@scodoc
-@permission_required(Permission.ScoView)
-@scodoc7func
-def about():
-    "version info"
-    H = [
-        """<h2>Système de gestion scolarité</h2>
-    <p>&copy; Emmanuel Viennet 1997-2021</p>
-    <p>Version %s</p>
-    """
-        % (scu.get_scodoc_version())
-    ]
-    H.append(
-        '<p>Logiciel libre écrit en <a href="http://www.python.org" target="_blank" rel="noopener noreferrer">Python</a>.</p>'
-    )
-    H.append("<h2>Dernières évolutions</h2>" + sco_version.SCONEWS)
-    H.append(
-        '<div class="about-logo">'
-        + scu.icontag("borgne_img")
-        + " <em>Au pays des aveugles...</em></div>"
-    )
-    d = ""
-    return (
-        html_sco_header.sco_header() + "\n".join(H) + d + html_sco_header.sco_footer()
-    )
-
-
 # --------------------------------------------------------------------
 #
 #    PREFERENCES
@@ -307,19 +279,10 @@ def showEtudLog(etudid, format="html", REQUEST=None):
         preferences=sco_preferences.SemPreferences(),
     )
 
-    return tab.make_page(format=format, REQUEST=REQUEST)
+    return tab.make_page(format=format)
 
 
 # ----------  PAGE ACCUEIL (listes) --------------
-# @bp.route("/")
-@bp.route("/kimo")
-@scodoc
-@permission_required(Permission.ScoView)
-@scodoc7func
-def kimo(REQUEST=None, showcodes=0, showsemtable=0):
-    import time
-
-    return f"{time.time()} := {g.scodoc_dept}"
 
 
 @bp.route("/")
diff --git a/app/views/users.py b/app/views/users.py
index 557fbfb66a..17e9987fe2 100644
--- a/app/views/users.py
+++ b/app/views/users.py
@@ -97,11 +97,12 @@ def user_info(user_name, format="json", REQUEST=None):
 @scodoc
 @permission_required(Permission.ScoUsersAdmin)
 @scodoc7func
-def create_user_form(REQUEST, user_name=None, edit=0):
-    "form. creation ou edit utilisateur"
+def create_user_form(REQUEST, user_name=None, edit=0, all_roles=1):
+    "form. création ou edition utilisateur"
     auth_dept = current_user.dept
     initvalues = {}
     edit = int(edit)
+    all_roles = int(all_roles)
     H = [html_sco_header.sco_header(bodyOnLoad="init_tf_form('')")]
     F = html_sco_header.sco_footer()
     if edit:
@@ -120,11 +121,19 @@ def create_user_form(REQUEST, user_name=None, edit=0):
         H.append("""<p class="warning">Vous êtes super administrateur !</p>""")
         is_super_admin = True
 
-    # Les rôles standards créés à l'initialisation de ScoDoc:
-    standard_roles = [
-        Role.get_named_role(r) for r in ("Ens", "Secr", "Admin", "RespPe")
-    ]
-    # Rôles pouvant etre attribués aux utilisateurs via ce dialogue:
+    if all_roles:
+        # tous sauf SuperAdmin
+        standard_roles = [
+            r
+            for r in Role.query.all()
+            if r.permissions != Permission.ALL_PERMISSIONS[0]
+        ]
+    else:
+        # Les rôles standards créés à l'initialisation de ScoDoc:
+        standard_roles = [
+            Role.get_named_role(r) for r in ("Ens", "Secr", "Admin", "RespPe")
+        ]
+    # Départements auxquels ont peut associer des rôles via ce dialogue:
     #    si  SuperAdmin, tous les rôles standards dans tous les départements
     #    sinon, les départements dans lesquels l'utilisateur a le droit
     if is_super_admin:
@@ -209,7 +218,7 @@ def create_user_form(REQUEST, user_name=None, edit=0):
                 },
             ),
             (
-                "passwd",
+                "password",
                 {
                     "title": "Mot de passe",
                     "input_type": "password",
@@ -219,7 +228,7 @@ def create_user_form(REQUEST, user_name=None, edit=0):
                 },
             ),
             (
-                "passwd2",
+                "password2",
                 {
                     "title": "Confirmer mot de passe",
                     "input_type": "password",
@@ -392,11 +401,11 @@ def create_user_form(REQUEST, user_name=None, edit=0):
 
                 return "\n".join(H) + "\n" + tf[1] + F
 
-        if edit:  # modif utilisateur (mais pas passwd ni user_name !)
+        if edit:  # modif utilisateur (mais pas password ni user_name !)
             if (not can_choose_dept) and "dept" in vals:
                 del vals["dept"]
-            if "passwd" in vals:
-                del vals["passwd"]
+            if "password" in vals:
+                del vals["passwordd"]
             if "date_modif_passwd" in vals:
                 del vals["date_modif_passwd"]
             if "user_name" in vals:
@@ -442,13 +451,13 @@ def create_user_form(REQUEST, user_name=None, edit=0):
                 )
                 return "\n".join(H) + msg + "\n" + tf[1] + F
             # check passwords
-            if vals["passwd"]:
-                if vals["passwd"] != vals["passwd2"]:
+            if vals["password"]:
+                if vals["password"] != vals["password2"]:
                     msg = tf_error_message(
                         """Les deux mots de passes ne correspondent pas !"""
                     )
                     return "\n".join(H) + msg + "\n" + tf[1] + F
-                if not sco_users.is_valid_password(vals["passwd"]):
+                if not sco_users.is_valid_password(vals["password"]):
                     msg = tf_error_message(
                         """Mot de passe trop simple, recommencez !"""
                     )
diff --git a/config.py b/config.py
index 2e424a58d2..ffb6cd24fe 100755
--- a/config.py
+++ b/config.py
@@ -30,6 +30,8 @@ class Config:
     SCODOC_DIR = os.environ.get("SCODOC_DIR", "/opt/scodoc")
     SCODOC_VAR_DIR = os.environ.get("SCODOC_VAR_DIR", "/opt/scodoc-data")
     SCODOC_LOG_FILE = os.path.join(SCODOC_VAR_DIR, "log", "scodoc.log")
+    # evite confusion avec le log nginx scodoc_error.log:
+    SCODOC_ERR_FILE = os.path.join(SCODOC_VAR_DIR, "log", "scodoc_exc.log")
     #
     MAX_CONTENT_LENGTH = 10 * 1024 * 1024  # Flask uploads
 
@@ -53,7 +55,7 @@ class DevConfig(Config):
     DEBUG = True
     TESTING = False
     SQLALCHEMY_DATABASE_URI = (
-        os.environ.get("SCODOC_DEV_DATABASE_URI") or "postgresql:///SCODOC_DEV"
+        os.environ.get("SCODOC_DATABASE_URI") or "postgresql:///SCODOC_DEV"
     )
     SECRET_KEY = os.environ.get("DEV_SECRET_KEY") or "bb3faec7d9a34eb68a8e3e710087d87a"
 
@@ -62,7 +64,7 @@ class TestConfig(DevConfig):
     TESTING = True
     DEBUG = True
     SQLALCHEMY_DATABASE_URI = (
-        os.environ.get("SCODOC_TEST_DATABASE_URI") or "postgresql:///SCODOC_TEST"
+        os.environ.get("SCODOC_DATABASE_URI") or "postgresql:///SCODOC_TEST"
     )
     SERVER_NAME = os.environ.get("SCODOC_TEST_SERVER_NAME") or "test.gr"
     DEPT_TEST = "TEST_"  # nom du département, ne pas l'utiliser pour un "vrai"
diff --git a/migrations/versions/669065fb2d20_flag_bloquage_calcul_moyennes.py b/migrations/versions/669065fb2d20_flag_bloquage_calcul_moyennes.py
new file mode 100644
index 0000000000..9479c82858
--- /dev/null
+++ b/migrations/versions/669065fb2d20_flag_bloquage_calcul_moyennes.py
@@ -0,0 +1,28 @@
+"""Flag bloquage calcul moyennes
+
+Revision ID: 669065fb2d20
+Revises: a217bf588f4c
+Create Date: 2021-09-16 22:04:11.624632
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '669065fb2d20'
+down_revision = 'a217bf588f4c'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('notes_formsemestre', sa.Column('block_moyennes', sa.Boolean(), server_default='false', nullable=False))
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('notes_formsemestre', 'block_moyennes')
+    # ### end Alembic commands ###
diff --git a/misc/Restore-database.txt b/misc/Restore-database.txt
index b912e90cd3..32851ca6b3 100644
--- a/misc/Restore-database.txt
+++ b/misc/Restore-database.txt
@@ -1,68 +1,69 @@
 
-Notes sur la restauration de la base SQL complete
+Notes sur la restauration de la base SQL complete (ScoDoc 9)
 (dans le cas d'une réinstallation sur une autre machine, par exemple)
 
 
 1) Sur la machine origine, faire un dump complet:
 su postgres
 cd /tmp # ou ailleurs...
-pg_dumpall > scodoc.dump.txt
+pg_dumpall | gzip > scodoc.dump.txt.gz
 
-On obtient un fichier texte assez volumineux (on peut utiliser gzip pour le compresser avant transfert).
+On obtient un fichier texte assez volumineux (comprimé par gzip ci-dessus)
 
-Le copier sur la machine destination.
+Le copier sur la machine destination, et le décompresser (gunzip).
 
 2) Sur la machine destination:
 
  Avant toute chose, stopper scodoc:
- /etc/init.d/scodoc stop (ou systemctl stop scodoc))
+ 
+  systemctl stop scodoc9
 
  1.1) Supprimer toutes les bases ScoDoc existantes s'il y en a:
-     su postgres
+     su scodoc
      psql -l
     liste les bases: celles de ScoDoc sont SCO* 
 
    Pour chaque base SCO*, faire dropdb
-    dropdb SCOUSERS
-    dropdb SCOGEII
+    dropdb SCODOC
+    dropdb SCODOC_DEV
     ...
 
- Pour les feignants, voici un script (à lancer comme utilisateur postgres):
+ Pour les gens pressés, voici un script (à lancer comme utilisateur postgres):
 for f in $(psql -l --no-align --field-separator . | grep SCO | cut -f 1 -d.); do
   echo dropping $f
   dropdb $f
 done
 
- 1.2) Charger le dump (toujours comme utilisateur postgres):
- psql -f scodoc.dump.txt postgres
+ 1.2) Charger le dump (toujours comme utilisateur scodoc):
+ psql -f scodoc.dump.txt scodoc
 
  1.3) Recopier les fichiers (photos, config, archives): copier le repertoire complet
-   /opt/scodoc/instance/var
+   /opt/scodoc-data
   de la machine origine vers la nouvelle
 
 
 Puis redemarrer ScoDoc:
-  en tant que root: /etc/init.d/scodoc start (ou systemctl start scodoc)
+  en tant que root: systemctl start scodoc9
 
 NB: si la version des sources a changée, lancer imperativement le script de mise a jour 
      avant de redemarrer scodoc, afin qu'il change si besoin la base de donnees:
 (en tant que root):
-cd /opt/scodoc/instance/Products/ScoDoc/config
-./upgrade.sh
+  apt-get update && 
 
 
 ----
-Cas d'une seule base à copier: (eg un seul département, mais faire
-attention aux utilisateurs definis dans la base SCOUSERS):
+Cas d'une seule base à copier (base production ou dev. par exemple)
 
-En tant qu'utilisateur "postgres":
-Dump: (script avec commande de creation de la base)
-pg_dump --create SCOINFO > /tmp/scoinfo.dump
+En tant qu'utilisateur "scodoc":
+Dump: permettant de la recharger en changeant son nom
+pg_dump --format=custom --file=/tmp/SCODOC.dump SCODOC 
 
 Restore: (si necessaire, utiliser dropdb avant)
-psql -f /tmp/scoinfo.dump postgres
+createdb SCODOC_IUTV
+pg_restore -d SCODOC_IUTV SCODOC.dump
+(si on veut garder le même nom de base que l'origine, utiliser --create )
 
----
+--- à revoir
 Cas d'un dump via sco_dump_db (assistance):
 createdb -E UTF-8 SCOXXX
 zcat xxx | psql SCOXXX
diff --git a/misc/createtables.sql b/misc/createtables.sql
index e5ca1ab7b2..06001b3a54 100644
--- a/misc/createtables.sql
+++ b/misc/createtables.sql
@@ -1,5 +1,5 @@
 
--- Creation des tables pour gestion notes
+-- Creation des tables pour gestion notes ScoDoc 7 (OBSOLETE !)
 -- E. Viennet, Sep 2005
 
 
diff --git a/sco_version.py b/sco_version.py
index 412da12c0f..8fb397ce7a 100644
--- a/sco_version.py
+++ b/sco_version.py
@@ -1,14 +1,14 @@
 # -*- mode: python -*-
 # -*- coding: utf-8 -*-
 
-SCOVERSION = "9.0.13"
+SCOVERSION = "9.0.28"
 
 SCONAME = "ScoDoc"
 
 SCONEWS = """
 <h4>Année 2021</h4>
 <ul>
-<li>ScoDoc 9: nouvelle architecture logicielle</li>
+<li>ScoDoc 9: nouvelle architecture logicielle (Flask/Python3/Debian 11)</li>
 <li>Version mobile (en test)</li>
 <li>Évaluations de type "deuxième session"</li>
 <li>Gestion du genre neutre (pas d'affichage de la civilité)</li>
diff --git a/scodoc.py b/scodoc.py
index 3a08522775..dd7e3f1107 100755
--- a/scodoc.py
+++ b/scodoc.py
@@ -6,24 +6,22 @@
 
 """
 
-
-from __future__ import print_function
-
-import os
 from pprint import pprint as pp
+import re
 import sys
 
 import click
 import flask
 from flask.cli import with_appcontext
+
 from app import create_app, cli, db
 from app import initialize_scodoc_database
 from app import clear_scodoc_cache
+from app import models
 
 from app.auth.models import User, Role, UserRole
-from app import models
 from app.models import ScoPreference
-
+from app.scodoc.sco_permissions import Permission
 from app.views import notes, scolar, absences
 import tools
 
@@ -45,6 +43,7 @@ def make_shell_context():
         "User": User,
         "Role": Role,
         "UserRole": UserRole,
+        "Permission": Permission,
         "notes": notes,
         "scolar": scolar,
         "ndb": ndb,
@@ -142,13 +141,90 @@ def user_password(username, password=None):  # user-password
         return 1
     u = User.query.filter_by(user_name=username).first()
     if not u:
-        sys.stderr.write("user_password: user {} does not exists".format(username))
+        sys.stderr.write(f"user_password: user {username} does not exists\n")
         return 1
 
     u.set_password(password)
     db.session.add(u)
     db.session.commit()
-    click.echo("changed password for user {}".format(u))
+    click.echo(f"changed password for user {u}")
+
+
+@app.cli.command()
+@click.argument("rolename")
+@click.argument("permissions", nargs=-1)
+def create_role(rolename, permissions):  # create-role
+    """Create a new role"""
+    # Check rolename
+    if not re.match(r"^[a-zA-Z0-9]+$", rolename):
+        sys.stderr.write(f"create_role: invalid rolename {rolename}\n")
+        return 1
+    # Check permissions
+    permission_list = []
+    for permission_name in permissions:
+        perm = Permission.get_by_name(permission_name)
+        if not perm:
+            sys.stderr.write(f"create_role: invalid permission name {perm}\n")
+            sys.stderr.write(
+                f"\tavailable permissions: {', '.join([ name for name in Permission.permission_by_name])}.\n"
+            )
+            return 1
+        permission_list.append(perm)
+
+    role = Role.query.filter_by(name=rolename).first()
+    if role:
+        sys.stderr.write(f"create_role: role {rolename} already exists\n")
+        return 1
+
+    role = Role(name=rolename)
+    for perm in permission_list:
+        role.add_permission(perm)
+    db.session.add(role)
+    db.session.commit()
+
+
+@app.cli.command()
+@click.argument("rolename")
+@click.option("-a", "--add", "addpermissionname")
+@click.option("-r", "--remove", "removepermissionname")
+def edit_role(rolename, addpermissionname=None, removepermissionname=None):  # edit-role
+    """Add [-a] and/or remove [-r] a permission to/from a role.
+    In ScoDoc, permissions are not associated to users but to roles.
+    Each user has a set of roles in each departement.
+
+    Example: `flask edit-role -a ScoEditApo Ens`
+    """
+    if addpermissionname:
+        perm_to_add = Permission.get_by_name(addpermissionname)
+        if not perm_to_add:
+            sys.stderr.write(
+                f"edit_role: permission {addpermissionname} does not exists\n"
+            )
+            return 1
+    else:
+        perm_to_add = None
+    if removepermissionname:
+        perm_to_remove = Permission.get_by_name(removepermissionname)
+        if not perm_to_remove:
+            sys.stderr.write(
+                f"edit_role: permission {removepermissionname} does not exists\n"
+            )
+            return 1
+    else:
+        perm_to_remove = None
+    role = Role.query.filter_by(name=rolename).first()
+    if not role:
+        sys.stderr.write(f"edit_role: role {rolename} does not exists\n")
+        return 1
+    if perm_to_add:
+        role.add_permission(perm_to_add)
+        click.echo(f"adding permission {addpermissionname} to role {rolename}")
+    if perm_to_remove:
+        role.remove_permission(perm_to_remove)
+        click.echo(f"removing permission {removepermissionname} from role {rolename}")
+    if perm_to_add or perm_to_remove:
+        db.session.add(role)
+        db.session.commit()
 
 
 @app.cli.command()
@@ -191,7 +267,7 @@ def create_dept(dept):  # create-dept
 @app.cli.command()
 @with_appcontext
 def import_scodoc7_users():  # import-scodoc7-users
-    """Import used defined in ScoDoc7 postgresql database into ScoDoc 9
+    """Import users defined in ScoDoc7 postgresql database into ScoDoc 9
     The old database SCOUSERS  must be alive and readable by the current user.
     This script is typically run as unix user "scodoc".
     The original SCOUSERS database is left unmodified.
@@ -206,18 +282,40 @@ def import_scodoc7_users():  # import-scodoc7-users
 @click.argument("dept")
 @click.argument("dept_db_name")
 @with_appcontext
-def import_scodoc7_dept(dept: str, dept_db_name: str):  # import-scodoc7-dept
+def import_scodoc7_dept(dept: str, dept_db_name: str = ""):  # import-scodoc7-dept
     """Import département ScoDoc 7: dept: InfoComm, dept_db_name: SCOINFOCOMM"""
     dept_db_uri = f"postgresql:///{dept_db_name}"
     tools.import_scodoc7_dept(dept, dept_db_uri)
 
 
+@app.cli.command()
+@click.argument("dept", default="")
+@with_appcontext
+def migrate_scodoc7_dept_archive(dept: str):  # migrate-scodoc7-dept-archive
+    """Post-migration: renomme les archives en fonction des id de ScoDoc 9"""
+    tools.migrate_scodoc7_dept_archive(dept)
+
+
 @app.cli.command()
 @with_appcontext
 def clear_cache():  # clear-cache
     """Clear ScoDoc cache
     This cache (currently Redis) is persistent between invocation
-    and it may be necessary to clear it during developement or tests.
+    and it may be necessary to clear it during development or tests.
     """
     clear_scodoc_cache()
     click.echo("Redis caches flushed.")
+
+
+def recursive_help(cmd, parent=None):
+    ctx = click.core.Context(cmd, info_name=cmd.name, parent=parent)
+    print(cmd.get_help(ctx))
+    print()
+    commands = getattr(cmd, "commands", {})
+    for sub in commands.values():
+        recursive_help(sub, ctx)
+
+
+@app.cli.command()
+def dumphelp():
+    recursive_help(app.cli)
diff --git a/tests/unit/sco_fake_gen.py b/tests/unit/sco_fake_gen.py
index c2df6738f6..0ad1453b81 100644
--- a/tests/unit/sco_fake_gen.py
+++ b/tests/unit/sco_fake_gen.py
@@ -219,6 +219,7 @@ class ScoFake(object):
         etat=None,
         gestion_compensation=None,
         bul_hide_xml=None,
+        block_moyennes=None,
         gestion_semestrielle=None,
         bul_bgcolor=None,
         modalite=NotesFormModalite.DEFAULT_MODALITE,
diff --git a/tools/__init__.py b/tools/__init__.py
index cf9debf633..599bdf0d3e 100644
--- a/tools/__init__.py
+++ b/tools/__init__.py
@@ -6,3 +6,4 @@
 
 from tools.import_scodoc7_user_db import import_scodoc7_user_db
 from tools.import_scodoc7_dept import import_scodoc7_dept
+from tools.migrate_scodoc7_archives import migrate_scodoc7_dept_archive
diff --git a/misc/backup_db2 b/tools/backups/backup_db9
similarity index 66%
rename from misc/backup_db2
rename to tools/backups/backup_db9
index 7792877020..ca760ea809 100755
--- a/misc/backup_db2
+++ b/tools/backups/backup_db9
@@ -1,29 +1,28 @@
 #!/bin/bash
 
-# usage: backup_db2 dbname
+# usage: backup_db9 dbname
 # Dump une base postgresql, et garde plusieurs dumps dans le passe
 # (configurable dans le script backup_rotation.sh)
 # Les dumps sont compresses (gzip).
 #
-# E. Viennet pour ScoDoc, 2014
+# E. Viennet pour ScoDoc, 2014, 2021 pour ScoDoc 9
 # (ce script est meilleur que l'ancien backup-db, car l'espace entre 
 #   deux sauvegardes dépend de leur anciennete)
 #
 #
 # Note: pour restaurer un backup (en supprimant la base existante !):
 #
-# 0- Arreter scodoc: /etc/init.d/scodoc stop (ou systemctl stop scodoc)
+# 0- Arreter scodoc: systemctl stop scodoc
 #
-# Puis en tant qu'utilisateur postgres:  su postgres
-# 1- supprimer la base existante si elle existe: dropdb SCOXXX
+# Puis en tant qu'utilisateur scodoc:  su scodoc
+# 1- supprimer la base existante si elle existe: dropdb SCODOC
 #
 # 2- recreer la base, vide: createdb -E UTF-8 SCOXXX
-#         (nom de la base: SCOXXX ou XXX=departement)
-#
-# 3- pg_restore  -d SCOXXX SCOXXX_pgdump
+#     /opt/scodoc/tools/create_database.sh SCODOC
+# 3- pg_restore  -d SCODOC SCODOC_pgdump
 #
 # Revenir a l'utilisateur root: exit
-# 4- Relancer scodoc: /etc/init.d/scodoc start (ou systemctl start scodoc)
+# 4- Relancer scodoc: systemctl start scodoc
 
 DBNAME=$1
 DUMPBASE="$DBNAME"-BACKUPS
@@ -50,4 +49,4 @@ pg_dump --format=t "$DBNAME" -f $DUMPFILE
 gzip $DUMPFILE
 
 # 3- Rotate backups: remove unneeded copies
-/opt/scodoc/Products/ScoDoc/misc/backup_rotation.sh "$DUMPBASE"
+/opt/scodoc/tools/backups/backup_rotation.sh "$DUMPBASE"
diff --git a/misc/backup_rotation.sh b/tools/backups/backup_rotation.sh
similarity index 99%
rename from misc/backup_rotation.sh
rename to tools/backups/backup_rotation.sh
index 351a1e365f..cfab628dff 100755
--- a/misc/backup_rotation.sh
+++ b/tools/backups/backup_rotation.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 # Backup rotation
-# Usage example: backup_rotation.sh /var/lib/postgresql/BACKUP-SCOGEII
+# Usage example: backup_rotation.sh /var/lib/postgresql/BACKUP-SCODOC
 #
 # This script is designed to run each hour
 #
diff --git a/misc/backup_to_remote_server.sh b/tools/backups/backup_to_remote_server.sh
similarity index 85%
rename from misc/backup_to_remote_server.sh
rename to tools/backups/backup_to_remote_server.sh
index 2509ab6aff..8638e1bd7e 100644
--- a/misc/backup_to_remote_server.sh
+++ b/tools/backups/backup_to_remote_server.sh
@@ -11,7 +11,7 @@
 #
 # A adapter a vos besoins. Utilisation a vos risques et perils.
 #
-# E. Viennet, 2002
+# E. Viennet, 2002, 2021
 
 # Installation:
 # 1- Installer rsync:
@@ -30,8 +30,8 @@ logfile=/var/log/rsynclog # log sur serveur scodoc
 # A qui envoyer un mail en cas d'erreur de la sauvegarde:
 SUPERVISORMAIL=emmanuel.viennet@example.com
 
-CALLER=`basename $0`
-MACHINE=`hostname -s`
+CALLER=$(basename $0)
+MACHINE=$(hostname -s)
 
 # -----------------------------------------------------
 
@@ -40,7 +40,7 @@ MACHINE=`hostname -s`
 # ----------------------------------
 terminate()
 {
- dateTest=`date`
+ dateTest=$(date)
 
  mail -s "Attention: Probleme sauvegarde ScoDoc" $SUPERVISORMAIL <<EOF
 The execution of script $CALLER was not successful on $MACHINE.
@@ -57,7 +57,7 @@ EOF
  echo  "Look at logfile $logfile"
  echo
  echo "$CALLER terminated, exiting now with rc=1."
- dateTest=`date`
+ dateTest=$(date)
  echo "End of script at: $dateTest"
  echo ""
 
@@ -74,16 +74,16 @@ EOF
 # --------------------------------------
 rsync_mirror_to_remote()
 {
-  echo "--------------- mirroring " $MACHINE:$srcdir " to " $remotehost:$destdir >> $logfile 2>&1
-  echo "starting at" `date` >> $logfile 2>&1
-  rsync -vaze ssh --delete --rsync-path=/usr/bin/rsync $srcdir $remotehost":"$destdir >> $logfile 2>&1
+  echo "--------------- mirroring $MACHINE:$srcdir to $remotehost:$destdir" >> $logfile 2>&1
+  echo "starting at $(date)" >> $logfile 2>&1
+  rsync -vaze ssh --delete --rsync-path=/usr/bin/rsync "$srcdir" "$remotehost:$destdir" >> $logfile 2>&1
   if [ $? -ne 0 ]
   then
     echo Error in rsync: code=$?
     terminate
   fi
 
-  echo "ending at" `date` >> $logfile 2>&1
+  echo "ending at $(date)" >> $logfile 2>&1
   echo "---------------"  >> $logfile 2>&1
 }
 
diff --git a/tools/build_release.sh b/tools/build_release.sh
index 35c2e3793e..a3645b63b6 100644
--- a/tools/build_release.sh
+++ b/tools/build_release.sh
@@ -15,9 +15,11 @@ source "$SCRIPT_DIR/utils.sh"
 SCODOC_RELEASE=$(grep SCOVERSION "$SCRIPT_DIR/../sco_version.py" | awk '{ print substr($3, 2, length($3)-2) }')
 
 # Dernière release
-GITEA_RELEASE_URL="https://scodoc.org/git/api/v1/repos/viennet/ScoDoc/releases?pre-release=true" 
+GITEA_RELEASE_URL="https://scodoc.org/git/api/v1/repos/viennet/ScoDoc/releases" # ?pre-release=true" 
 
-LAST_RELEASE_TAG=$(curl "$GITEA_RELEASE_URL" | jq ".[].tag_name" | sort | tail -1 | awk '{ print substr($1, 2, length($1)-2) }')
+# suppose que les realse sont nommées 9.0.17, ne considère pas les caractères non numériques
+LAST_RELEASE_TAG=$(curl "$GITEA_RELEASE_URL" | jq ".[].tag_name" | tr -d -c "0-9.\n" | sort --version-sort | tail -1)
+# | awk '{ print substr($1, 2, length($1)-2) }')
 
 echo 
 echo "Version détectée dans le source: $SCODOC_RELEASE"
@@ -89,7 +91,8 @@ fi
 # Puis on déplace les fichiers de config (nginx, systemd, ...)
 #  nginx:
 mkdir -p "$slash"/etc/nginx/sites-available || die "can't mkdir nginx config"
-cp -p "$SCODOC_DIR"/tools/etc/scodoc9.nginx "$slash"/etc/nginx/sites-available/ || die "can't copy nginx config"
+cp -p "$SCODOC_DIR"/tools/etc/scodoc9.nginx "$slash"/etc/nginx/sites-available/scodoc9.nginx.distrib || die "can't copy nginx config"
+
 #  systemd
 mkdir -p "$slash"/etc/systemd/system/ || die "can't mkdir systemd config"
 cp -p "$SCODOC_DIR"/tools/etc/scodoc9.service "$slash"/etc/systemd/system/ || die "can't copy scodoc9.service"
diff --git a/tools/debian/postinst b/tools/debian/postinst
index 412c298a2a..3332779ffc 100755
--- a/tools/debian/postinst
+++ b/tools/debian/postinst
@@ -80,6 +80,11 @@ su -c "(cd $SCODOC_DIR && python3 -m venv venv)" "$SCODOC_USER" || die "Error cr
 su -c "(cd $SCODOC_DIR && source venv/bin/activate && pip install wheel && pip install -r requirements-3.9.txt)" "$SCODOC_USER" || die "Error installing python packages"
 
 # --- NGINX
+# Evite d'écraser: il faudrait ici présenter un dialogue "fichier local modifié, ..."
+if [ ! -e /etc/nginx/sites-available/scodoc9.nginx ]
+then
+  cp -p /etc/nginx/sites-available/scodoc9.nginx.distrib /etc/nginx/sites-available/scodoc9.nginx  || die "can't copy nginx config"
+fi
 if [ ! -L /etc/nginx/sites-enabled/scodoc9.nginx ]
 then
     echo "Enabling scodoc9 in nginx"
diff --git a/tools/etc/scodoc-logrotate b/tools/etc/scodoc-logrotate
index 59e9410359..275679c1f0 100644
--- a/tools/etc/scodoc-logrotate
+++ b/tools/etc/scodoc-logrotate
@@ -1,4 +1,13 @@
-/opt/scodoc-datalog/scodoc.log {
+/opt/scodoc-data/log/scodoc.log {
+    weekly
+    missingok
+    rotate 64
+    compress
+    notifempty
+    dateext
+    create 0644 scodoc scodoc
+}
+/opt/scodoc-datalog/scodoc_exc.log {
     weekly
     missingok
     rotate 64
diff --git a/tools/etc/scodoc9.nginx b/tools/etc/scodoc9.nginx
index 05f55bee1c..8df2b9d47e 100644
--- a/tools/etc/scodoc9.nginx
+++ b/tools/etc/scodoc9.nginx
@@ -27,6 +27,7 @@ server {
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto https;
     }
     location /ScoDoc/static {
         # handle static files directly, without forwarding to the application
@@ -40,5 +41,8 @@ server {
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-    } 
+    }
+    location /favicon.ico {
+    	alias /opt/scodoc/app/static/icons/favicon.ico;
+    }
 }
diff --git a/tools/import_scodoc7_dept.py b/tools/import_scodoc7_dept.py
index a2fe08ae1c..a9a727f5c0 100644
--- a/tools/import_scodoc7_dept.py
+++ b/tools/import_scodoc7_dept.py
@@ -380,6 +380,9 @@ def convert_object(
                     "absences",
                     "absences_notifications",
                     "itemsuivi",  # etudid n'était pas une clé
+                    "adresse",  # etudid n'était pas une clé
+                    "admissions",  # idem
+                    "scolar_events",
                 }:
                     # tables avec "fausses" clés
                     # (l'object référencé a pu disparaitre)
diff --git a/tools/migrate_from_scodoc7.sh b/tools/migrate_from_scodoc7.sh
index 537d0be08c..67ba70d662 100755
--- a/tools/migrate_from_scodoc7.sh
+++ b/tools/migrate_from_scodoc7.sh
@@ -204,6 +204,9 @@ do
     systemctl restart postgresql
 done 
 
+# ----- Post-Migration: renomme archives en fonction des nouveaux ids
+su -c "(cd $SCODOC_DIR && source venv/bin/activate && flask migrate-scodoc7-dept-archive)" "$SCODOC_USER" || die "Erreur de la post-migration des archives"
+
 
 # --- Si migration "en place", désactive ScoDoc 7
 if [ "$INPLACE" == 1 ]
diff --git a/tools/migrate_scodoc7_archives.py b/tools/migrate_scodoc7_archives.py
new file mode 100644
index 0000000000..55acd84219
--- /dev/null
+++ b/tools/migrate_scodoc7_archives.py
@@ -0,0 +1,72 @@
+# -*- mode: python -*-
+# -*- coding: utf-8 -*-
+
+import glob
+import os
+import shutil
+
+from app.models import Departement
+from app.models.formsemestre import FormSemestre
+from app.models.etudiants import Identite
+
+
+def migrate_scodoc7_dept_archive(dept_name=""):
+    if dept_name:
+        depts = Departement.query.filter_by(acronym=dept_name)
+    else:
+        depts = Departement.query
+    for dept in depts:
+        print(f"Migrating {dept.acronym} archives...")
+        # SemsArchiver
+        #   /opt/scodoc-data/archives/<dept>/<scodoc7id> -> formsemestre_id
+        migrate_sem_archives(dept)
+
+        # EtudsArchiver:
+        migrate_docetuds(dept)
+
+        # ApoCSVArchiver:
+        #   /opt/scodoc-data/archives/apo_csv/<dept>/ ne bouge pas
+
+
+def migrate_sem_archives(dept):
+    "/opt/scodoc-data/archives/<dept>/<scodoc7id> -> formsemestre_id"
+    n = 0
+    n_moves = 0
+    for sem in FormSemestre.query.filter_by(dept_id=dept.id):
+        n += 1
+        arch_dir7 = f"/opt/scodoc-data/archives/{dept.acronym}/{sem.scodoc7_id}"
+        arch_dir9 = f"/opt/scodoc-data/archives/{dept.acronym}/{sem.id}"
+        if os.path.exists(arch_dir7):
+            n_moves += 1
+            if not os.path.exists(arch_dir9):
+                # print(f"renaming {arch_dir7} to {arch_dir9}")
+                shutil.move(arch_dir7, arch_dir9)
+            else:
+                # print(f"merging {arch_dir7} with {arch_dir9}")
+                for arch in glob.glob(f"{arch_dir7}/*"):
+                    # print(f"\tmoving {arch}")
+                    shutil.move(arch, arch_dir9)
+    # print(f"moved {n_moves}/{n} sems")
+
+
+def migrate_docetuds(dept):
+    "/opt/scodoc-data/archives/docetuds/<dept>/<scodoc7_id>/ -> etudid"
+    n = 0
+    n_moves = 0
+    for etud in Identite.query.filter_by(dept_id=dept.id):
+        n += 1
+        arch_dir7 = (
+            f"/opt/scodoc-data/archives/docetuds/{dept.acronym}/{etud.scodoc7_id}"
+        )
+        arch_dir9 = f"/opt/scodoc-data/archives/docetuds/{dept.acronym}/{etud.id}"
+        if os.path.exists(arch_dir7):
+            n_moves += 1
+            if not os.path.exists(arch_dir9):
+                # print(f"renaming {arch_dir7} to {arch_dir9}")
+                shutil.move(arch_dir7, arch_dir9)
+            else:
+                # print(f"merging {arch_dir7} with {arch_dir9}")
+                for arch in glob.glob(f"{arch_dir7}/*"):
+                    # print(f"\tmoving {arch}")
+                    shutil.move(arch, arch_dir9)
+    # print(f"moved {n_moves}/{n} etuds")
diff --git a/tools/restore_scodoc7_data.sh b/tools/restore_scodoc7_data.sh
index 613e449f4f..9ff24797a2 100755
--- a/tools/restore_scodoc7_data.sh
+++ b/tools/restore_scodoc7_data.sh
@@ -44,7 +44,7 @@ fi
 # Safety check
 echo "Ce script recharge les donnees de votre installation ScoDoc 7"
 echo "sur ce serveur pour migration vers ScoDoc 9."
-echo "Ce fichier doit avoir ete cree par le script save_scodoc_data.sh, sur une machine ScoDoc 7."
+echo "Ce fichier doit avoir ete cree par le script save_scodoc7_data.sh, sur une machine ScoDoc 7."
 echo 
 echo -n "Voulez-vous poursuivre cette operation ? (y/n) [n]"
 read -r ans