def index(self):
c.debts = debts()
c.settle = settle(c.debts)
+
+ c.net = 0
+ for from_user, to_user, amount in c.settle:
+ if from_user == request.environ['user']:
+ c.net -= amount
+ elif to_user == request.environ['user']:
+ c.net += amount
periods = {}
periods['Total'] = (None, None)