diff --git a/app/scodoc/sco_groups_view.py b/app/scodoc/sco_groups_view.py
index b047413496..0e4b8ac23c 100644
--- a/app/scodoc/sco_groups_view.py
+++ b/app/scodoc/sco_groups_view.py
@@ -106,57 +106,52 @@ def groups_view(
             with_bourse=with_bourse,
         )
 
-    H = [
-        html_sco_header.sco_header(
-            javascripts=JAVASCRIPTS,
-            cssstyles=CSSSTYLES,
-            init_qtip=True,
-        )
-    ]
-    # Menu choix groupe
-    H.append("""<div id="group-tabs">""")
-    H.append(form_groups_choice(groups_infos, submit_on_change=True))
     # Note: le formulaire est soumis a chaque modif des groupes
     # on pourrait faire comme pour le form de saisie des notes. Il faudrait pour cela:
     #  - charger tous les etudiants au debut, quels que soient les groupes selectionnés
     #  - ajouter du JS pour modifier les liens (arguments group_ids) quand le menu change
 
-    # Tabs
-    H.extend(
-        (
-            """<ul class="nav nav-tabs">
-    <li class="active"><a href="#tab-listes" data-toggle="tab">Listes</a></li>
-    <li><a href="#tab-photos" data-toggle="tab">Photos</a></li>
-    <li><a href="#tab-abs" data-toggle="tab">Absences et feuilles...</a></li>
-    </ul>
+    return f"""
+    { html_sco_header.sco_header(
+            javascripts=JAVASCRIPTS,
+            cssstyles=CSSSTYLES,
+            init_qtip=True,
+        )
+    }
+    <div id="group-tabs">
+        <!-- Menu choix groupe -->
+        {form_groups_choice(groups_infos, submit_on_change=True)}
+        <ul class="nav nav-tabs">
+            <li class="active"><a href="#tab-listes" data-toggle="tab">Listes</a></li>
+            <li><a href="#tab-photos" data-toggle="tab">Photos</a></li>
+            <li><a href="#tab-abs" data-toggle="tab">Absences et feuilles...</a></li>
+        </ul>
     </div>
     <!-- Tab panes -->
     <div class="tab-content">
-    <div class="tab-pane active" id="tab-listes">
-    """,
-            groups_table(
-                groups_infos=groups_infos,
-                fmt=fmt,
-                with_codes=with_codes,
-                etat=etat,
-                with_paiement=with_paiement,
-                with_archives=with_archives,
-                with_annotations=with_annotations,
-                with_bourse=with_bourse,
-            ),
-            "</div>",
-            """<div class="tab-pane" id="tab-photos">""",
-            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),
-            "</div>",
-        )
-    )
-
-    H.append(html_sco_header.sco_footer())
-    return "\n".join(H)
+        <div class="tab-pane active" id="tab-listes">
+            {
+                groups_table(
+                    groups_infos=groups_infos,
+                    fmt=fmt,
+                    with_codes=with_codes,
+                    etat=etat,
+                    with_paiement=with_paiement,
+                    with_archives=with_archives,
+                    with_annotations=with_annotations,
+                    with_bourse=with_bourse,
+                )
+            }
+        </div>
+        <div class="tab-pane" id="tab-photos">
+            { tab_photos_html(groups_infos, etat=etat) }
+        </div>
+        <div class="tab-pane" id="tab-abs">
+            { tab_absences_html(groups_infos, etat=etat) }
+        </div>
+    </div>
+    { html_sco_header.sco_footer() }
+    """
 
 
 def form_groups_choice(
@@ -751,7 +746,7 @@ def groups_table(
 
             H.append("</ul>")
 
-        return "".join(H) + "</div>"
+        return "".join(H)
 
     elif (
         fmt == "pdf"