--- a/src/pages/g/e/page_meta.py	Sun Jun 24 22:21:25 2018 +0200
+++ b/src/pages/g/e/page_meta.py	Fri Jun 29 17:45:26 2018 +0200
@@ -11,7 +11,8 @@
 import time
 import cgi
 from sat.core.log import getLogger
-log = getLogger('pages/g/e')
+
+log = getLogger("pages/g/e")
 
 access = C.PAGES_ACCESS_PROFILE
 template = u"event/invitation.html"
@@ -22,7 +23,7 @@
     template_data = request.template_data
     guest_session = self.host.getSessionData(request, session_iface.ISATGuestSession)
     try:
-        event_uri = guest_session.data['event_uri']
+        event_uri = guest_session.data["event_uri"]
     except KeyError:
         log.warning(_(u"event URI not found, can't render event page"))
         self.pageError(request, C.HTTP_SERVICE_UNAVAILABLE)
@@ -32,56 +33,64 @@
     ## Event ##
 
     event_uri_data = uri.parseXMPPUri(event_uri)
-    if event_uri_data[u'type'] != u'pubsub':
+    if event_uri_data[u"type"] != u"pubsub":
         self.pageError(request, C.HTTP_SERVICE_UNAVAILABLE)
 
-    event_service = template_data[u'event_service'] = jid.JID(event_uri_data[u'path'])
-    event_node = template_data[u'event_node'] = event_uri_data[u'node']
-    event_id = template_data[u'event_id'] = event_uri_data.get(u'item','')
+    event_service = template_data[u"event_service"] = jid.JID(event_uri_data[u"path"])
+    event_node = template_data[u"event_node"] = event_uri_data[u"node"]
+    event_id = template_data[u"event_id"] = event_uri_data.get(u"item", "")
     profile = self.getProfile(request)
-    event_timestamp, event_data = yield self.host.bridgeCall(u"eventGet", event_service.userhost(), event_node, event_id, profile)
+    event_timestamp, event_data = yield self.host.bridgeCall(
+        u"eventGet", event_service.userhost(), event_node, event_id, profile
+    )
     try:
-        background_image = event_data.pop('background-image')
+        background_image = event_data.pop("background-image")
     except KeyError:
         pass
     else:
-        template_data['dynamic_style'] = safe(u"""
+        template_data["dynamic_style"] = safe(
+            u"""
             html {
                 background-image: url("%s");
                 background-size: 15em;
             }
-            """ % cgi.escape(background_image, True))
-    template_data['event'] = event_data
+            """
+            % cgi.escape(background_image, True)
+        )
+    template_data["event"] = event_data
     event_invitee_data = yield self.host.bridgeCall(
         u"eventInviteeGet",
-        event_data['invitees_service'],
-        event_data['invitees_node'],
-        profile)
-    template_data['invitee'] = event_invitee_data
-    template_data['days_left'] = int((event_timestamp - time.time()) / (60 * 60 * 24))
+        event_data["invitees_service"],
+        event_data["invitees_node"],
+        profile,
+    )
+    template_data["invitee"] = event_invitee_data
+    template_data["days_left"] = int((event_timestamp - time.time()) / (60 * 60 * 24))
 
     ## Blog ##
 
-    data[u'service'] = jid.JID(event_data[u'blog_service'])
-    data[u'node'] = event_data[u'blog_node']
-    data[u'allow_commenting'] = u'simple'
+    data[u"service"] = jid.JID(event_data[u"blog_service"])
+    data[u"node"] = event_data[u"blog_node"]
+    data[u"allow_commenting"] = u"simple"
 
     # we now need blog items, using blog common page
     # this will fill the "items" template data
-    blog_page = self.getPageByName(u'blog_view')
+    blog_page = self.getPageByName(u"blog_view")
     yield blog_page.prepare_render(self, request)
 
+
 @defer.inlineCallbacks
 def on_data_post(self, request):
-    type_ = self.getPostedData(request, u'type')
-    if type_ == u'comment':
-        blog_page = self.getPageByName(u'blog_view')
+    type_ = self.getPostedData(request, u"type")
+    if type_ == u"comment":
+        blog_page = self.getPageByName(u"blog_view")
         yield blog_page.on_data_post(self, request)
-    elif type_ == u'attendance':
+    elif type_ == u"attendance":
         profile = self.getProfile(request)
-        service, node, attend, guests = self.getPostedData(request, (u'service', u'node', u'attend', u'guests'))
-        data = {u'attend': attend,
-                u'guests': guests}
+        service, node, attend, guests = self.getPostedData(
+            request, (u"service", u"node", u"attend", u"guests")
+        )
+        data = {u"attend": attend, u"guests": guests}
         yield self.host.bridgeCall(u"eventInviteeSet", service, node, data, profile)
     else:
         log.warning(_(u"Unhandled data type: {}").format(type_))