Added a random number of seconds [0, 10000] to each datetime object to ensure...

Added a random number of seconds [0, 10000] to each datetime object to ensure that no two 'talks' have the same date.

filters.py

@@ -7,7 +7,9 @@ http://jinja.pocoo.org/docs/2.9/api/#custom-filters
 Created 26-09-2017 by Josh Borrow (joshua.borrow@durham.ac.uk)
 """
 
+import datetime
 import dateutil.parser as dp
+from random import randint as rand
 
 def sort_cards(cards):
     """
@@ -22,8 +24,12 @@ def sort_cards(cards):
     A list will be returned where the cards are sorted by date.
     """
 
+    # We add a random number of seconds in case we have a number of
+    # cards on the same date.
+
     dates = [
-        dp.parse(card["date"]) for card in cards
+        dp.parse(card["date"]) + datetime.timedelta(rand(0, 10000))
+        for card in cards
     ]
 
     _, cards = zip(*sorted(zip(dates, cards)))