+import datetime
import logging
import math
import random
elos[pid].elo = new_elo
elos[pid].games += 1
+ elos[pid].update_dt = datetime.datetime.utcnow()
log.debug("Setting Player {0}'s Elo delta to {1}. Elo is now {2} (was {3}).".format(pid, elo_deltas[pid], new_elo, old_elo))