diff --git a/app/scodoc/sco_groups_view.py b/app/scodoc/sco_groups_view.py
index 2477bb5d..f4a4d9eb 100644
--- a/app/scodoc/sco_groups_view.py
+++ b/app/scodoc/sco_groups_view.py
@@ -56,7 +56,6 @@ from app.scodoc import sco_etud
 from app.scodoc.gen_tables import GenTable
 from app.scodoc.sco_exceptions import ScoValueError
 from app.scodoc.sco_permissions import Permission
-from six.moves import range
 
 JAVASCRIPTS = html_sco_header.BOOTSTRAP_MULTISELECT_JS + [
     "js/etud_info.js",
@@ -65,11 +64,10 @@ JAVASCRIPTS = html_sco_header.BOOTSTRAP_MULTISELECT_JS + [
 
 CSSSTYLES = html_sco_header.BOOTSTRAP_MULTISELECT_CSS
 
-
+# view:
 def groups_view(
-    group_ids=[],
+    group_ids=(),
     format="html",
-    REQUEST=None,
     # Options pour listes:
     with_codes=0,
     etat=None,
@@ -94,7 +92,6 @@ def groups_view(
         return groups_table(
             groups_infos=groups_infos,
             format=format,
-            REQUEST=REQUEST,
             with_codes=with_codes,
             etat=etat,
             with_paiement=with_paiement,
@@ -134,7 +131,6 @@ def groups_view(
             groups_table(
                 groups_infos=groups_infos,
                 format=format,
-                REQUEST=REQUEST,
                 with_codes=with_codes,
                 etat=etat,
                 with_paiement=with_paiement,
@@ -143,11 +139,11 @@ def groups_view(
             ),
             "</div>",
             """<div class="tab-pane" id="tab-photos">""",
-            tab_photos_html(groups_infos, etat=etat, REQUEST=REQUEST),
+            tab_photos_html(groups_infos, etat=etat),
             #'<p>hello</p>',
             "</div>",
             '<div class="tab-pane" id="tab-abs">',
-            tab_absences_html(groups_infos, etat=etat, REQUEST=REQUEST),
+            tab_absences_html(groups_infos, etat=etat),
             "</div>",
         )
     )
@@ -296,7 +292,7 @@ class DisplayedGroupsInfos(object):
 
     def __init__(
         self,
-        group_ids=[],  # groupes specifies dans l'URL, ou un seul int
+        group_ids=(),  # groupes specifies dans l'URL, ou un seul int
         formsemestre_id=None,
         etat=None,
         select_all_when_unspecified=False,
@@ -421,7 +417,6 @@ class DisplayedGroupsInfos(object):
 
 # Ancien ZScolar.group_list renommé ici en group_table
 def groups_table(
-    REQUEST=None,
     groups_infos=None,  # instance of DisplayedGroupsInfos
     with_codes=0,
     etat=None,
@@ -529,7 +524,8 @@ 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 RT-DUT-FI-S3-2021-PARTITION-GROUPE
+        # 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
@@ -638,22 +634,21 @@ def groups_table(
                 [
                     """<span style="margin-left: 2em;"><select name="group_list_options" id="group_list_options" class="multiselect" multiple="multiple">""",
                     "\n".join(Of),
-                    """
-            </select></span>
-            <script type="text/javascript">
-  $(document).ready(function() {
-  $('#group_list_options').multiselect(
-  {
-    includeSelectAllOption: false,
-    nonSelectedText:'Options...',
-    onChange: function(element, checked){
-        change_list_options();
-    }
-    }
-  );
-  });
-  </script>
-                """,
+                    """</select></span>
+                    <script type="text/javascript">
+                    $(document).ready(function() {
+                    $('#group_list_options').multiselect(
+                    {
+                    includeSelectAllOption: false,
+                    nonSelectedText:'Options...',
+                    onChange: function(element, checked){
+                        change_list_options();
+                    }
+                    }
+                    );
+                    });
+                    </script>
+                    """,
                 ]
             )
         H.append("</h3></form>")
@@ -797,7 +792,7 @@ def groups_table(
         raise ValueError("unsupported format")
 
 
-def tab_absences_html(groups_infos, etat=None, REQUEST=None):
+def tab_absences_html(groups_infos, etat=None):
     """contenu du tab "absences et feuilles diverses" """
     authuser = current_user
     H = ['<div class="tab-content">']
@@ -808,10 +803,10 @@ def tab_absences_html(groups_infos, etat=None, REQUEST=None):
             "<h3>Absences</h3>",
             '<ul class="ul_abs">',
             "<li>",
-            form_choix_saisie_semaine(groups_infos, REQUEST=REQUEST),  # Ajout Le Havre
+            form_choix_saisie_semaine(groups_infos),  # Ajout Le Havre
             "</li>",
             "<li>",
-            form_choix_jour_saisie_hebdo(groups_infos, REQUEST=REQUEST),
+            form_choix_jour_saisie_hebdo(groups_infos),
             "</li>",
             """<li><a class="stdlink" href="Absences/EtatAbsencesGr?%s&debut=%s&fin=%s">État des absences du groupe</a></li>"""
             % (
@@ -856,17 +851,17 @@ def tab_absences_html(groups_infos, etat=None, REQUEST=None):
     return "".join(H)
 
 
-def tab_photos_html(groups_infos, etat=None, REQUEST=None):
+def tab_photos_html(groups_infos, etat=None):
     """contenu du tab "photos" """
     from app.scodoc import sco_trombino
 
     if not groups_infos.members:
         return '<div class="tab-content"><h3>Aucun étudiant !</h3></div>'
 
-    return sco_trombino.trombino_html(groups_infos, REQUEST=REQUEST)
+    return sco_trombino.trombino_html(groups_infos)
 
 
-def form_choix_jour_saisie_hebdo(groups_infos, moduleimpl_id=None, REQUEST=None):
+def form_choix_jour_saisie_hebdo(groups_infos, moduleimpl_id=None):
     """Formulaire choix jour semaine pour saisie."""
     authuser = current_user
     if not authuser.has_permission(Permission.ScoAbsChange):
@@ -908,7 +903,7 @@ def form_choix_jour_saisie_hebdo(groups_infos, moduleimpl_id=None, REQUEST=None)
 
 # Ajout Le Havre
 # Formulaire saisie absences semaine
-def form_choix_saisie_semaine(groups_infos, REQUEST=None):
+def form_choix_saisie_semaine(groups_infos):
     authuser = current_user
     if not authuser.has_permission(Permission.ScoAbsChange):
         return ""
diff --git a/app/scodoc/sco_trombino.py b/app/scodoc/sco_trombino.py
index 532780ab..cf57c738 100644
--- a/app/scodoc/sco_trombino.py
+++ b/app/scodoc/sco_trombino.py
@@ -104,7 +104,7 @@ def _trombino_html_header():
     return html_sco_header.sco_header(javascripts=["js/trombino.js"])
 
 
-def trombino_html(groups_infos, REQUEST=None):
+def trombino_html(groups_infos):
     "HTML snippet for trombino (with title and menu)"
     menuTrombi = [
         {
diff --git a/app/scodoc/sco_utils.py b/app/scodoc/sco_utils.py
index b9534891..6efdd7d4 100644
--- a/app/scodoc/sco_utils.py
+++ b/app/scodoc/sco_utils.py
@@ -585,9 +585,9 @@ def send_file(data, filename="", suffix="", mime=None, attached=None):
     """
     if attached is None:
         if mime == XML_MIMETYPE or mime == JSON_MIMETYPE:
-            attached = True
-        else:
             attached = False
+        else:
+            attached = True
     # if attached and not filename:
     #    raise ValueError("send_file: missing attachement filename")
     if filename: