diff --git a/app/scodoc/sco_archives.py b/app/scodoc/sco_archives.py
index 108bb055e..9266724f9 100644
--- a/app/scodoc/sco_archives.py
+++ b/app/scodoc/sco_archives.py
@@ -313,7 +313,7 @@ def do_formsemestre_archive(
         # tous les inscrits du semestre
         group_ids = [sco_groups.get_default_group(formsemestre_id)]
     groups_infos = sco_groups_view.DisplayedGroupsInfos(
-        group_ids, formsemestre_id=formsemestre_id, REQUEST=REQUEST
+        group_ids, formsemestre_id=formsemestre_id
     )
     groups_filename = "-" + groups_infos.groups_filename
     etudids = [m["etudid"] for m in groups_infos.members]
@@ -403,7 +403,7 @@ def formsemestre_archive(REQUEST, formsemestre_id, group_ids=[]):
         # tous les inscrits du semestre
         group_ids = [sco_groups.get_default_group(formsemestre_id)]
     groups_infos = sco_groups_view.DisplayedGroupsInfos(
-        group_ids, formsemestre_id=formsemestre_id, REQUEST=REQUEST
+        group_ids, formsemestre_id=formsemestre_id
     )
 
     H = [
diff --git a/app/scodoc/sco_groups_view.py b/app/scodoc/sco_groups_view.py
index 9852899c3..7ca1788f1 100644
--- a/app/scodoc/sco_groups_view.py
+++ b/app/scodoc/sco_groups_view.py
@@ -34,12 +34,12 @@
 import collections
 import datetime
 import operator
-import six.moves.urllib.request, six.moves.urllib.parse, six.moves.urllib.error
+import urllib
 from urllib.parse import parse_qs
 import time
 
 
-from flask import url_for, g
+from flask import url_for, g, request
 
 import app.scodoc.sco_utils as scu
 from app.scodoc import html_sco_header
@@ -86,7 +86,6 @@ def groups_view(
         group_ids,
         formsemestre_id=formsemestre_id,
         etat=etat,
-        REQUEST=REQUEST,
         select_all_when_unspecified=True,
     )
     # Formats spéciaux: download direct
@@ -301,7 +300,6 @@ class DisplayedGroupsInfos(object):
         etat=None,
         select_all_when_unspecified=False,
         moduleimpl_id=None,  # used to find formsemestre when unspecified
-        REQUEST=None,
     ):
         if isinstance(group_ids, int):
             if group_ids:
@@ -334,7 +332,7 @@ class DisplayedGroupsInfos(object):
         for group_id in group_ids:
             gq.append("group_ids=" + str(group_id))
         self.groups_query_args = "&".join(gq)
-        self.base_url = REQUEST.URL0 + "?" + self.groups_query_args
+        self.base_url = request.base_url + "?" + self.groups_query_args
         self.group_ids = group_ids
         self.groups = []
         groups_titles = []
@@ -918,7 +916,7 @@ def form_choix_saisie_semaine(groups_infos, REQUEST=None):
         del query_args["head_message"]
     destination = "%s?%s" % (
         REQUEST.URL,
-        six.moves.urllib.parse.urlencode(query_args, True),
+        urllib.parse.urlencode(query_args, True),
     )
     destination = destination.replace(
         "%", "%%"
diff --git a/app/scodoc/sco_import_etuds.py b/app/scodoc/sco_import_etuds.py
index b9b8b5de5..5b4d0cad1 100644
--- a/app/scodoc/sco_import_etuds.py
+++ b/app/scodoc/sco_import_etuds.py
@@ -157,7 +157,6 @@ def sco_import_generate_excel_sample(
     exclude_cols=[],
     extra_cols=[],
     group_ids=[],
-    REQUEST=None,
 ):
     """Generates an excel document based on format fmt
     (format is the result of sco_import_format())
@@ -188,7 +187,7 @@ def sco_import_generate_excel_sample(
     titles += extra_cols
     titlesStyles += [style] * len(extra_cols)
     if group_ids:
-        groups_infos = sco_groups_view.DisplayedGroupsInfos(group_ids, REQUEST=REQUEST)
+        groups_infos = sco_groups_view.DisplayedGroupsInfos(group_ids)
         members = groups_infos.members
         log(
             "sco_import_generate_excel_sample: group_ids=%s  %d members"
diff --git a/app/scodoc/sco_pvjury.py b/app/scodoc/sco_pvjury.py
index 3fa5196ae..f06180f4e 100644
--- a/app/scodoc/sco_pvjury.py
+++ b/app/scodoc/sco_pvjury.py
@@ -622,7 +622,7 @@ def formsemestre_pvjury_pdf(formsemestre_id, group_ids=[], etudid=None, REQUEST=
             group_ids = [sco_groups.get_default_group(formsemestre_id)]
 
         groups_infos = sco_groups_view.DisplayedGroupsInfos(
-            group_ids, formsemestre_id=formsemestre_id, REQUEST=REQUEST
+            group_ids, formsemestre_id=formsemestre_id
         )
         etudids = [m["etudid"] for m in groups_infos.members]
 
@@ -800,7 +800,7 @@ def formsemestre_lettres_individuelles(formsemestre_id, group_ids=[], REQUEST=No
         # tous les inscrits du semestre
         group_ids = [sco_groups.get_default_group(formsemestre_id)]
     groups_infos = sco_groups_view.DisplayedGroupsInfos(
-        group_ids, formsemestre_id=formsemestre_id, REQUEST=REQUEST
+        group_ids, formsemestre_id=formsemestre_id
     )
     etudids = [m["etudid"] for m in groups_infos.members]
 
diff --git a/app/scodoc/sco_saisie_notes.py b/app/scodoc/sco_saisie_notes.py
index da452b3a3..faba5e2c6 100644
--- a/app/scodoc/sco_saisie_notes.py
+++ b/app/scodoc/sco_saisie_notes.py
@@ -620,7 +620,6 @@ def saisie_notes_tableur(evaluation_id, group_ids=[], REQUEST=None):
         formsemestre_id=formsemestre_id,
         select_all_when_unspecified=True,
         etat=None,
-        REQUEST=REQUEST,
     )
 
     H = [
@@ -793,7 +792,6 @@ def feuille_saisie_notes(evaluation_id, group_ids=[], REQUEST=None):
         formsemestre_id=formsemestre_id,
         select_all_when_unspecified=True,
         etat=None,
-        REQUEST=REQUEST,
     )
     groups = sco_groups.listgroups(groups_infos.group_ids)
     gr_title_filename = sco_groups.listgroups_filename(groups)
@@ -891,7 +889,6 @@ def saisie_notes(evaluation_id, group_ids=[], REQUEST=None):
         formsemestre_id=formsemestre_id,
         select_all_when_unspecified=True,
         etat=None,
-        REQUEST=REQUEST,
     )
 
     if E["description"]:
diff --git a/app/scodoc/sco_trombino.py b/app/scodoc/sco_trombino.py
index 47769baf0..a0f858b0f 100644
--- a/app/scodoc/sco_trombino.py
+++ b/app/scodoc/sco_trombino.py
@@ -78,7 +78,7 @@ def trombino(
         etat = None  # may be passed as ''
     # Informations sur les groupes à afficher:
     groups_infos = sco_groups_view.DisplayedGroupsInfos(
-        group_ids, formsemestre_id=formsemestre_id, etat=etat, REQUEST=REQUEST
+        group_ids, formsemestre_id=formsemestre_id, etat=etat
     )
 
     #
@@ -247,7 +247,7 @@ def _trombino_zip(groups_infos):
 # Copy photos from portal to ScoDoc
 def trombino_copy_photos(group_ids=[], REQUEST=None, dialog_confirmed=False):
     "Copy photos from portal to ScoDoc (overwriting local copy)"
-    groups_infos = sco_groups_view.DisplayedGroupsInfos(group_ids, REQUEST=REQUEST)
+    groups_infos = sco_groups_view.DisplayedGroupsInfos(group_ids)
     back_url = "groups_view?%s&curtab=tab-photos" % groups_infos.groups_query_args
 
     portal_url = sco_portal_apogee.get_portal_url()
@@ -485,14 +485,13 @@ def photos_generate_excel_sample(group_ids=[], REQUEST=None):
             "photo_filename",
         ],
         extra_cols=["fichier_photo"],
-        REQUEST=REQUEST,
     )
     return sco_excel.send_excel_file(REQUEST, data, "ImportPhotos" + scu.XLSX_SUFFIX)
 
 
 def photos_import_files_form(group_ids=[], REQUEST=None):
     """Formulaire pour importation photos"""
-    groups_infos = sco_groups_view.DisplayedGroupsInfos(group_ids, REQUEST=REQUEST)
+    groups_infos = sco_groups_view.DisplayedGroupsInfos(group_ids)
     back_url = "groups_view?%s&curtab=tab-photos" % groups_infos.groups_query_args
 
     H = [
@@ -541,7 +540,7 @@ def photos_import_files_form(group_ids=[], REQUEST=None):
 
 def photos_import_files(group_ids=[], xlsfile=None, zipfile=None, REQUEST=None):
     """Importation des photos"""
-    groups_infos = sco_groups_view.DisplayedGroupsInfos(group_ids, REQUEST=REQUEST)
+    groups_infos = sco_groups_view.DisplayedGroupsInfos(group_ids)
     back_url = "groups_view?%s&curtab=tab-photos" % groups_infos.groups_query_args
     filename_title = "fichier_photo"
     page_title = "Téléchargement des photos des étudiants"
diff --git a/app/scodoc/sco_trombino_tours.py b/app/scodoc/sco_trombino_tours.py
index b77bf61d0..7a2ec1f03 100644
--- a/app/scodoc/sco_trombino_tours.py
+++ b/app/scodoc/sco_trombino_tours.py
@@ -61,7 +61,7 @@ def pdf_trombino_tours(
     """Generation du trombinoscope en fichier PDF"""
     # Informations sur les groupes à afficher:
     groups_infos = sco_groups_view.DisplayedGroupsInfos(
-        group_ids, formsemestre_id=formsemestre_id, REQUEST=REQUEST
+        group_ids, formsemestre_id=formsemestre_id
     )
 
     DeptName = sco_preferences.get_preference("DeptName")
@@ -296,7 +296,7 @@ def pdf_feuille_releve_absences(
 
     # Informations sur les groupes à afficher:
     groups_infos = sco_groups_view.DisplayedGroupsInfos(
-        group_ids, formsemestre_id=formsemestre_id, REQUEST=REQUEST
+        group_ids, formsemestre_id=formsemestre_id
     )
 
     DeptName = sco_preferences.get_preference("DeptName")
diff --git a/app/views/absences.py b/app/views/absences.py
index f0dee786a..6216dc7ef 100644
--- a/app/views/absences.py
+++ b/app/views/absences.py
@@ -312,7 +312,7 @@ def SignaleAbsenceGrHebdo(
         moduleimpl_id = None
 
     groups_infos = sco_groups_view.DisplayedGroupsInfos(
-        group_ids, moduleimpl_id=moduleimpl_id, REQUEST=REQUEST
+        group_ids, moduleimpl_id=moduleimpl_id
     )
     if not groups_infos.members:
         return (
@@ -474,7 +474,7 @@ def SignaleAbsenceGrSemestre(
     REQUEST=None,
 ):
     """Saisie des absences sur une journée sur un semestre (ou intervalle de dates) entier"""
-    groups_infos = sco_groups_view.DisplayedGroupsInfos(group_ids, REQUEST=REQUEST)
+    groups_infos = sco_groups_view.DisplayedGroupsInfos(group_ids)
     if not groups_infos.members:
         return (
             html_sco_header.sco_header(page_title="Saisie des absences")
@@ -847,7 +847,7 @@ def EtatAbsencesGr(
     datedebut = ndb.DateDMYtoISO(debut)
     datefin = ndb.DateDMYtoISO(fin)
     # Informations sur les groupes à afficher:
-    groups_infos = sco_groups_view.DisplayedGroupsInfos(group_ids, REQUEST=REQUEST)
+    groups_infos = sco_groups_view.DisplayedGroupsInfos(group_ids)
     formsemestre_id = groups_infos.formsemestre_id
     sem = groups_infos.formsemestre
 
@@ -971,13 +971,11 @@ ou entrez une date pour visualiser les absents un jour donné :
 @scodoc
 @permission_required(Permission.ScoView)
 @scodoc7func
-def EtatAbsencesDate(
-    group_ids=[], date=None, REQUEST=None  # list of groups to display
-):
+def EtatAbsencesDate(group_ids=[], date=None):  # list of groups to display
     # ported from dtml
     """Etat des absences pour un groupe à une date donnée"""
     # Informations sur les groupes à afficher:
-    groups_infos = sco_groups_view.DisplayedGroupsInfos(group_ids, REQUEST=REQUEST)
+    groups_infos = sco_groups_view.DisplayedGroupsInfos(group_ids)
     H = [html_sco_header.sco_header(page_title="Etat des absences")]
     if date:
         dateiso = ndb.DateDMYtoISO(date)
diff --git a/app/views/scolar.py b/app/views/scolar.py
index 54640bea2..41632ff7e 100644
--- a/app/views/scolar.py
+++ b/app/views/scolar.py
@@ -283,7 +283,10 @@ sco_publish(
 )
 
 sco_publish(
-    "/trombino_copy_photos", sco_trombino.trombino_copy_photos, Permission.ScoView
+    "/trombino_copy_photos",
+    sco_trombino.trombino_copy_photos,
+    Permission.ScoView,
+    methods=["GET", "POST"],
 )
 
 sco_publish("/groups_view", sco_groups_view.groups_view, Permission.ScoView)