diff --git a/app/__init__.py b/app/__init__.py
index 4e0cbb04..6ff9c0df 100644
--- a/app/__init__.py
+++ b/app/__init__.py
@@ -5,8 +5,9 @@ import os
 import sys
 
 # Un hack en attendant la migration vers Python3 #sco8
-reload(sys)
-sys.setdefaultencoding("UTF8")
+if sys.version_info.major < 3:
+    reload(sys)
+    sys.setdefaultencoding("UTF8")
 
 import logging
 from logging.handlers import SMTPHandler, RotatingFileHandler
diff --git a/app/scodoc/sco_users.py b/app/scodoc/sco_users.py
index a0874005..7b51c465 100644
--- a/app/scodoc/sco_users.py
+++ b/app/scodoc/sco_users.py
@@ -30,14 +30,7 @@
 
 # Anciennement ZScoUsers.py, fonctions de gestion des données réécrite avec flask/SQLAlchemy
 
-import base64
-import jaxml
-import md5
-import re
-import string
-import time
-
-from flask import current_app, url_for, g
+from flask import url_for, g
 from flask_login import current_user
 
 import cracklib  # pylint: disable=import-error
@@ -48,16 +41,12 @@ from app.auth.models import Permission
 from app.auth.models import User
 
 from app.scodoc import html_sco_header
-from app.scodoc import sco_cache
 from app.scodoc import sco_etud
 from app.scodoc import sco_excel
 from app.scodoc import sco_preferences
 from app.scodoc.gen_tables import GenTable
 from app.scodoc.notes_log import log
 from app.scodoc.scolog import logdb
-from app.scodoc.sco_etud import format_prenom, format_nom
-from app.scodoc.TrivialFormulator import TrivialFormulator, tf_error_message
-import app.scodoc.notesdb as ndb
 import app.scodoc.sco_utils as scu
 
 from app.scodoc.sco_exceptions import (
diff --git a/app/views/scolar.py b/app/views/scolar.py
index 0be944a5..3ed8d981 100644
--- a/app/views/scolar.py
+++ b/app/views/scolar.py
@@ -24,20 +24,15 @@
 ##############################################################################
 
 """
-Module scolar: issu de ScoDoc7 / ZScolar.py
+Module scolar: vues de .../ScoDoc/<dept>/Scolarite
+
+issu de ScoDoc7 / ZScolar.py
 
 Emmanuel Viennet, 2021
 """
 
 import sys
-import traceback
 import time
-import string
-import glob
-import re
-import cgi
-import xml
-import jaxml
 
 # StringIO => io.StringIO or io.BytesIO for text and data respectively. #py3
 try:
diff --git a/requirements.txt b/requirements-2.7.txt
similarity index 98%
rename from requirements.txt
rename to requirements-2.7.txt
index ae115662..5f6d9e96 100644
--- a/requirements.txt
+++ b/requirements-2.7.txt
@@ -33,6 +33,7 @@ lazy-object-proxy==1.6.0
 Mako==1.1.4
 MarkupSafe==1.1.1
 mccabe==0.6.1
+modernize==0.7
 Pillow==6.2.2
 pkg-resources==0.0.0
 psycopg2==2.8.6
diff --git a/requirements-3.7.txt b/requirements-3.7.txt
new file mode 100644
index 00000000..1983328b
--- /dev/null
+++ b/requirements-3.7.txt
@@ -0,0 +1,34 @@
+alembic==1.6.5
+blinker==1.4
+click==8.0.1
+dnspython==2.1.0
+dominate==2.6.0
+email-validator==1.1.3
+Flask==2.0.1
+Flask-Bootstrap==3.3.7.1
+Flask-Login==0.5.0
+Flask-Mail==0.9.1
+Flask-Migrate==3.0.1
+Flask-Moment==1.0.1
+Flask-SQLAlchemy==2.5.1
+Flask-WTF==0.15.1
+greenlet==1.1.0
+idna==3.2
+importlib-metadata==4.6.1
+itsdangerous==2.0.1
+Jinja2==3.0.1
+Mako==1.1.4
+MarkupSafe==2.0.1
+pkg-resources==0.0.0
+psycopg2==2.9.1
+PyJWT==2.1.0
+python-dateutil==2.8.1
+python-dotenv==0.18.0
+python-editor==1.0.4
+six==1.16.0
+SQLAlchemy==1.4.20
+typing-extensions==3.10.0.0
+visitor==0.1.3
+Werkzeug==2.0.1
+WTForms==2.3.3
+zipp==3.5.0