Continue on 500/503 errors.

i3pystatus/google_calendar.py

@@ -5,8 +5,9 @@ import oauth2client
 import pytz
 from apiclient import discovery
 from dateutil import parser
+from googleapiclient.errors import HttpError
 
-from i3pystatus import IntervalModule
+from i3pystatus import IntervalModule, logger
 from i3pystatus.core.color import ColorRangeModule
 from i3pystatus.core.util import internet, require
 
@@ -108,6 +109,8 @@ class GoogleCalendar(IntervalModule, ColorRangeModule):
             return event
 
     def get_events(self):
+        events = []
+        try:
             now, later = self.get_timerange()
             events_result = self.service.events().list(
                 calendarId='primary',
@@ -118,7 +121,13 @@ class GoogleCalendar(IntervalModule, ColorRangeModule):
                 orderBy='startTime',
                 timeZone='utc'
             ).execute()
-        return events_result.get('items', [])
+            events = events_result.get('items', [])
+        except HttpError as e:
+            if e.resp.status in (500, 503):
+                logger.warn("GoogleCalendar received %s while retrieving events" % e.resp.status)
+            else:
+                raise
+        return events
 
     def get_timerange(self):
         now = datetime.datetime.utcnow()