diff --git a/app/scodoc/sco_abs.py b/app/scodoc/sco_abs.py
index d4d01673..74043f9b 100644
--- a/app/scodoc/sco_abs.py
+++ b/app/scodoc/sco_abs.py
@@ -145,7 +145,7 @@ class ddmmyyyy:
         "iso8601 representation of the date"
         return "%04d-%02d-%02d" % (self.year, self.month, self.day)
 
-    def next(self, days=1):
+    def next_day(self, days=1):
         "date for the next day (nota: may be a non workable day)"
         day = self.day + days
         month = self.month
@@ -179,7 +179,7 @@ class ddmmyyyy:
 
     def next_monday(self):
         "date of next monday"
-        return self.next((7 - self.weekday) % 7)
+        return self.next_day((7 - self.weekday) % 7)
 
     def prev_monday(self):
         "date of last monday, but on sunday, pick next monday"
@@ -213,7 +213,7 @@ def DateRangeISO(context, date_beg, date_end, workable=1):
     while cur <= end:
         if (not workable) or cur.iswork():
             r.append(cur)
-        cur = cur.next()
+        cur = cur.next_day()
 
     return map(lambda x: x.ISO(), r)
 
@@ -231,7 +231,7 @@ def day_names(context):
 def next_iso_day(context, date):
     "return date after date"
     d = ddmmyyyy(date, fmt="iso", work_saturday=is_work_saturday(context))
-    return d.next().ISO()
+    return d.next_day().ISO()
 
 
 def YearTable(
@@ -860,7 +860,7 @@ def MonthTableBody(
             cc.append("</td>")
             cell = string.join(cc, "")
             if day == "D":
-                monday = monday.next(7)
+                monday = monday.next_day(7)
             if (
                 weeknum == current_weeknum
                 and current_year == year
@@ -894,7 +894,7 @@ def MonthTableBody(
                 weeknum += " currentweek"
 
             if day == "D":
-                monday = monday.next(7)
+                monday = monday.next_day(7)
             T.append(
                 '<tr bgcolor="%s" class="wk%s" %s><td class="calday">%d%s</td>'
                 % (bgcolor, weekclass, attrs, d, day)
diff --git a/app/scodoc/sco_abs_views.py b/app/scodoc/sco_abs_views.py
index e42aa9c0..41f5ec44 100644
--- a/app/scodoc/sco_abs_views.py
+++ b/app/scodoc/sco_abs_views.py
@@ -737,7 +737,9 @@ def CalAbs(context, REQUEST=None):  # etud implied
     datedebut = str(anneescolaire) + "-08-31"
     datefin = str(anneescolaire + 1) + "-07-31"
     nbabs = sco_abs.CountAbs(context, etudid=etudid, debut=datedebut, fin=datefin)
-    nbabsjust = sco_abs.CountAbsJust(context, etudid=etudid, debut=datedebut, fin=datefin)
+    nbabsjust = sco_abs.CountAbsJust(
+        context, etudid=etudid, debut=datedebut, fin=datefin
+    )
     events = []
     for a in sco_abs.ListeAbsJust(context, etudid=etudid, datedebut=datedebut):
         events.append(
@@ -1042,77 +1044,3 @@ def _TablesAbsEtud(
         columns_ids.append("justlink")
 
     return titles, columns_ids, absnonjust, absjust
-
-
-def index_html(context, REQUEST=None):
-    """Gestionnaire absences, page principale"""
-    # crude portage from 1999 DTML
-    sems = sco_formsemestre.do_formsemestre_list(context)
-    authuser = REQUEST.AUTHENTICATED_USER
-
-    H = [
-        html_sco_header.sco_header(
-            context,
-            REQUEST,
-            page_title="Gestion des absences",
-            cssstyles=["css/calabs.css"],
-            javascripts=["js/calabs.js"],
-        ),
-        """<h2>Gestion des Absences</h2>""",
-    ]
-    if not sems:
-        H.append(
-            """<p class="warning">Aucun semestre défini (ou aucun groupe d'étudiant)</p>"""
-        )
-    else:
-        H.append(
-            """<ul><li><a href="EtatAbsences">Afficher l'état des absences (pour tout un groupe)</a></li>"""
-        )
-        if sco_preferences.get_preference(context, "handle_billets_abs"):
-            H.append(
-                """<li><a href="listeBillets">Traitement des billets d'absence en attente</a></li>"""
-            )
-        H.append(
-            """<p>Pour signaler, annuler ou justifier une absence, choisissez d'abord l'étudiant concerné:</p>"""
-        )
-        H.append(sco_find_etud.form_search_etud(context, REQUEST))
-        if authuser.has_permission(Permission.ScoAbsChange):
-            H.extend(
-                (
-                    """<hr/>
-<form action="SignaleAbsenceGrHebdo" id="formw">
-<input type="hidden" name="destination" value="%s"/>
-<p>
-<span  style="font-weight: bold; font-size:120%%;">
- Saisie par semaine </span> - Choix du groupe:
- <input name="datelundi" type="hidden" value="x"/>
-            """
-                    % REQUEST.URL0,
-                    formChoixSemestreGroupe(context),
-                    "</p>",
-                    cal_select_week(context, REQUEST=REQUEST),
-                    """<p class="help">Sélectionner le groupe d'étudiants, puis cliquez sur une semaine pour
-saisir les absences de toute cette semaine.</p>
-                      </form>""",
-                )
-            )
-        else:
-            H.append(
-                """<p class="scoinfo">Vous n'avez pas l'autorisation d'ajouter, justifier ou supprimer des absences.</p>"""
-            )
-
-    H.append(html_sco_header.sco_footer(context, REQUEST))
-    return "\n".join(H)
-
-
-def cal_select_week(context, year=None, REQUEST=None):
-    "display calendar allowing week selection"
-    if not year:
-        year = scu.AnneeScolaire(REQUEST)
-    sems = sco_formsemestre.do_formsemestre_list(context)
-    if not sems:
-        js = ""
-    else:
-        js = 'onmouseover="highlightweek(this);" onmouseout="deselectweeks();" onclick="wclick(this);"'
-    C = sco_abs.YearTable(context, int(year), dayattributes=js)
-    return C
diff --git a/app/scodoc/sco_formsemestre_status.py b/app/scodoc/sco_formsemestre_status.py
index 19ef67df..af90c0da 100644
--- a/app/scodoc/sco_formsemestre_status.py
+++ b/app/scodoc/sco_formsemestre_status.py
@@ -31,8 +31,9 @@
 import urllib
 import cgi
 
-# Rewritten from ancient DTML code
 from flask import current_app
+from flask import g
+from flask import url_for
 
 from app.scodoc.notes_log import log
 import app.scodoc.sco_utils as scu
@@ -805,7 +806,11 @@ def _make_listes_sem(context, sem, REQUEST=None, with_absences=True):
             first_monday = sco_abs.ddmmyyyy(sem["date_debut"]).prev_monday()
             FA = []  # formulaire avec menu saisi absences
             FA.append(
-                '<td><form action="Absences/SignaleAbsenceGrSemestre" method="get">'
+                '<td><form action="{}" method="get">'.format(
+                    url_for(
+                        "absences.SignaleAbsenceGrSemestre", scodoc_dept=g.scodoc_dept
+                    )
+                )
             )
             FA.append(
                 '<input type="hidden" name="datefin" value="%(date_fin)s"/>' % sem
@@ -820,7 +825,7 @@ def _make_listes_sem(context, sem, REQUEST=None, with_absences=True):
             date = first_monday
             for jour in sco_abs.day_names(context):
                 FA.append('<option value="%s">%s</option>' % (date, jour))
-                date = date.next()
+                date = date.next_day()
             FA.append("</select>")
             FA.append(
                 '<a href="Absences/EtatAbsencesGr?group_ids=%%(group_id)s&debut=%(date_debut)s&fin=%(date_fin)s">état</a>'
diff --git a/app/scodoc/sco_groups_view.py b/app/scodoc/sco_groups_view.py
index b710d843..bafd65f7 100644
--- a/app/scodoc/sco_groups_view.py
+++ b/app/scodoc/sco_groups_view.py
@@ -918,7 +918,7 @@ def form_choix_jour_saisie_hebdo(
             sel = ""
         i += 1
         FA.append('<option value="%s" %s>%s</option>' % (date, sel, jour))
-        date = date.next()
+        date = date.next_day()
     FA.append("</select>")
     FA.append("</form>")
     return "\n".join(FA)
diff --git a/app/scodoc/sco_utils.py b/app/scodoc/sco_utils.py
index 3f5ceb2b..02c5ac62 100644
--- a/app/scodoc/sco_utils.py
+++ b/app/scodoc/sco_utils.py
@@ -911,7 +911,7 @@ def query_portal(req, msg="Portail Apogee", timeout=3):
     return data
 
 
-def AnneeScolaire(REQUEST=None):
+def AnneeScolaire(REQUEST=None):  # TODO remplacer REQUEST #sco8
     "annee de debut de l'annee scolaire courante"
     if REQUEST and REQUEST.form.has_key("sco_year"):
         year = REQUEST.form["sco_year"]
diff --git a/app/views/absences.py b/app/views/absences.py
index 9bb165cf..f712ea99 100644
--- a/app/views/absences.py
+++ b/app/views/absences.py
@@ -46,6 +46,7 @@ L'API de plus bas niveau est en gros:
 
 """
 
+from __future__ import absolute_import
 import string
 import re
 import time
@@ -53,7 +54,7 @@ import datetime
 import dateutil
 import dateutil.parser
 import calendar
-import urllib
+import six.moves.urllib.request, six.moves.urllib.parse, six.moves.urllib.error
 import cgi
 import jaxml
 
@@ -87,6 +88,7 @@ from app.scodoc import sco_compute_moy
 from app.scodoc import sco_core
 from app.scodoc import sco_etud
 from app.scodoc import sco_excel
+from app.scodoc import sco_find_etud
 from app.scodoc import sco_formsemestre
 from app.scodoc import sco_groups
 from app.scodoc import sco_groups_view
@@ -100,11 +102,13 @@ CSSSTYLES = html_sco_header.BOOTSTRAP_MULTISELECT_CSS
 context = ScoDoc7Context("absences")
 
 
-def sco_publish(route, function, permission):
+def sco_publish(route, function, permission, methods=["GET"]):
     """Declare a route for a python function,
     protected by permission and called following ScoDoc 7 Zope standards.
     """
-    bp.route(route)(permission_required(permission)(scodoc7func(context)(function)))
+    return bp.route(route, methods=methods)(
+        permission_required(permission)(scodoc7func(context)(function))
+    )
 
 
 def _toboolean(x):
@@ -118,28 +122,134 @@ def _toboolean(x):
 #
 # --------------------------------------------------------------------
 
-sco_publish("/index_html", sco_abs_views.index_html, Permission.ScoView)
+
+@bp.route("/")
+@bp.route("/index_html")
+@permission_required(Permission.ScoView)
+@scodoc7func(context)
+def index_html(context, REQUEST=None):
+    """Gestionnaire absences, page principale"""
+    # crude portage from 1999 DTML
+    sems = sco_formsemestre.do_formsemestre_list(context)
+    authuser = REQUEST.AUTHENTICATED_USER
+
+    H = [
+        html_sco_header.sco_header(
+            context,
+            REQUEST,
+            page_title="Gestion des absences",
+            cssstyles=["css/calabs.css"],
+            javascripts=["js/calabs.js"],
+        ),
+        """<h2>Gestion des Absences</h2>""",
+    ]
+    if not sems:
+        H.append(
+            """<p class="warning">Aucun semestre défini (ou aucun groupe d'étudiant)</p>"""
+        )
+    else:
+        H.append(
+            """<ul><li><a href="EtatAbsences">Afficher l'état des absences (pour tout un groupe)</a></li>"""
+        )
+        if sco_preferences.get_preference(context, "handle_billets_abs"):
+            H.append(
+                """<li><a href="listeBillets">Traitement des billets d'absence en attente</a></li>"""
+            )
+        H.append(
+            """<p>Pour signaler, annuler ou justifier une absence, choisissez d'abord l'étudiant concerné:</p>"""
+        )
+        H.append(sco_find_etud.form_search_etud(context, REQUEST))
+        if authuser.has_permission(Permission.ScoAbsChange):
+            H.extend(
+                (
+                    """<hr/>
+<form action="SignaleAbsenceGrHebdo" id="formw">
+<input type="hidden" name="destination" value="%s"/>
+<p>
+<span  style="font-weight: bold; font-size:120%%;">
+ Saisie par semaine </span> - Choix du groupe:
+ <input name="datelundi" type="hidden" value="x"/>
+            """
+                    % REQUEST.URL0,
+                    sco_abs_views.formChoixSemestreGroupe(context),
+                    "</p>",
+                    cal_select_week(context, REQUEST=REQUEST),
+                    """<p class="help">Sélectionner le groupe d'étudiants, puis cliquez sur une semaine pour
+saisir les absences de toute cette semaine.</p>
+                      </form>""",
+                )
+            )
+        else:
+            H.append(
+                """<p class="scoinfo">Vous n'avez pas l'autorisation d'ajouter, justifier ou supprimer des absences.</p>"""
+            )
+
+    H.append(html_sco_header.sco_footer(context, REQUEST))
+    return "\n".join(H)
+
+
+def cal_select_week(context, year=None, REQUEST=None):
+    "display calendar allowing week selection"
+    if not year:
+        year = scu.AnneeScolaire(REQUEST)
+    sems = sco_formsemestre.do_formsemestre_list(context)
+    if not sems:
+        js = ""
+    else:
+        js = 'onmouseover="highlightweek(this);" onmouseout="deselectweeks();" onclick="wclick(this);"'
+    C = sco_abs.YearTable(context, int(year), dayattributes=js)
+    return C
+
+
 sco_publish("/EtatAbsences", sco_abs_views.EtatAbsences, Permission.ScoView)
 sco_publish("/CalAbs", sco_abs_views.CalAbs, Permission.ScoView)
 sco_publish(
-    "/SignaleAbsenceEtud", sco_abs_views.SignaleAbsenceEtud, Permission.ScoAbsChange
+    "/SignaleAbsenceEtud",
+    sco_abs_views.SignaleAbsenceEtud,
+    Permission.ScoAbsChange,
+    methods=["GET", "POST"],
 )
 sco_publish(
-    "/doSignaleAbsence", sco_abs_views.doSignaleAbsence, Permission.ScoAbsChange
+    "/doSignaleAbsence",
+    sco_abs_views.doSignaleAbsence,
+    Permission.ScoAbsChange,
+    methods=["GET", "POST"],
 )
 sco_publish(
-    "/JustifAbsenceEtud", sco_abs_views.JustifAbsenceEtud, Permission.ScoAbsChange
+    "/JustifAbsenceEtud",
+    sco_abs_views.JustifAbsenceEtud,
+    Permission.ScoAbsChange,
+    methods=["GET", "POST"],
 )
-sco_publish("/doJustifAbsence", sco_abs_views.doJustifAbsence, Permission.ScoAbsChange)
 sco_publish(
-    "/AnnuleAbsenceEtud", sco_abs_views.AnnuleAbsenceEtud, Permission.ScoAbsChange
+    "/doJustifAbsence",
+    sco_abs_views.doJustifAbsence,
+    Permission.ScoAbsChange,
+    methods=["GET", "POST"],
+)
+sco_publish(
+    "/AnnuleAbsenceEtud",
+    sco_abs_views.AnnuleAbsenceEtud,
+    Permission.ScoAbsChange,
+    methods=["GET", "POST"],
+)
+sco_publish(
+    "/doAnnuleAbsence",
+    sco_abs_views.doAnnuleAbsence,
+    Permission.ScoAbsChange,
+    methods=["GET", "POST"],
+)
+sco_publish(
+    "/doAnnuleJustif",
+    sco_abs_views.doAnnuleJustif,
+    Permission.ScoAbsChange,
+    methods=["GET", "POST"],
 )
-sco_publish("/doAnnuleAbsence", sco_abs_views.doAnnuleAbsence, Permission.ScoAbsChange)
-sco_publish("/doAnnuleJustif", sco_abs_views.doAnnuleJustif, Permission.ScoAbsChange)
 sco_publish(
     "/AnnuleAbsencesDatesNoJust",
     sco_abs_views.AnnuleAbsencesDatesNoJust,
     Permission.ScoAbsChange,
+    methods=["GET", "POST"],
 )
 
 sco_publish("/ListeAbsEtud", sco_abs_views.ListeAbsEtud, Permission.ScoView)
@@ -155,7 +265,7 @@ sco_publish("/CountAbs", sco_abs.CountAbs, Permission.ScoView)
 sco_publish("/CountAbsJust", sco_abs.CountAbsJust, Permission.ScoView)
 
 
-@bp.route("/doSignaleAbsenceGrSemestre")
+@bp.route("/doSignaleAbsenceGrSemestre", methods=["GET", "POST"])
 @permission_required(Permission.ScoAbsChange)
 @scodoc7func(context)
 def doSignaleAbsenceGrSemestre(
@@ -198,7 +308,7 @@ def doSignaleAbsenceGrSemestre(
 
 
 # ------------ HTML Interfaces
-@bp.route("/SignaleAbsenceGrHebdo")
+@bp.route("/SignaleAbsenceGrHebdo", methods=["GET", "POST"])
 @permission_required(Permission.ScoAbsChange)
 @scodoc7func(context)
 def SignaleAbsenceGrHebdo(
@@ -223,7 +333,7 @@ def SignaleAbsenceGrHebdo(
     base_url = "SignaleAbsenceGrHebdo?datelundi=%s&%s&destination=%s" % (
         datelundi,
         groups_infos.groups_query_args,
-        urllib.quote(destination),
+        six.moves.urllib.parse.quote(destination),
     )
 
     formsemestre_id = groups_infos.formsemestre_id
@@ -365,7 +475,7 @@ def SignaleAbsenceGrHebdo(
     return "\n".join(H)
 
 
-@bp.route("/SignaleAbsenceGrSemestre")
+@bp.route("/SignaleAbsenceGrSemestre", methods=["GET", "POST"])
 @permission_required(Permission.ScoAbsChange)
 @scodoc7func(context)
 def SignaleAbsenceGrSemestre(
@@ -417,7 +527,7 @@ def SignaleAbsenceGrSemestre(
             datedebut,
             datefin,
             groups_infos.groups_query_args,
-            urllib.quote(destination),
+            six.moves.urllib.parse.quote(destination),
         )
     )
     base_url = base_url_noweeks + "&nbweeks=%s" % nbweeks  # sans le moduleimpl_id
@@ -434,7 +544,7 @@ def SignaleAbsenceGrSemestre(
         time.strftime("%d/%m/%Y", time.localtime()),
         work_saturday=work_saturday,
     )
-    today.next()
+    today.next_day()
     if jourfin > today:  # ne propose jamais les semaines dans le futur
         jourfin = today
     if jourdebut > today:
@@ -450,7 +560,7 @@ def SignaleAbsenceGrSemestre(
     d = sco_abs.ddmmyyyy(datedebut, work_saturday=work_saturday)
     while d <= jourfin:
         dates.append(d)
-        d = d.next(7)  # avance d'une semaine
+        d = d.next_day(7)  # avance d'une semaine
     #
     msg = "Montrer seulement les 4 dernières semaines"
     nwl = 4
@@ -713,7 +823,7 @@ 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"/>'
-        % urllib.quote(destination)
+        % six.moves.urllib.parse.quote(destination)
     )
     #
     # version pour formulaire avec AJAX (Yann LB)