Sort events by start date/time

schichtleiter/schedule.py

@@ -18,6 +18,7 @@ from collections import namedtuple
 from datetime import *
 from icalendar import Calendar
 from itertools import count
+from operator import attrgetter
 from xml.dom import Node
 from xml.dom.minidom import getDOMImplementation
 
@@ -136,7 +137,7 @@ def calendar_to_xml(cal):
                     elem('track', ''),
                     id=next(id),
                     guid=event.guid,
-                ), events),
+                ), sorted(events, key=attrgetter('start'))),
                 _name=room,
             ), rooms.keys(), rooms.values()),
             date=day.isoformat(),