def ELO(Won, Lost, first=False):
fullRoster = Roster.oRoster("c")
roster = {}
for name in fullRoster:
roster[name] = fullRoster[name][0]
if first:
Roster.Edit("l", fullRoster)
winTotal = 0
for i in Won:
if i in roster:
winTotal += roster[i]
else:
winTotal += 1000
winAverage = winTotal / 5
loseTotal = 0
for i in Lost:
if i in roster:
loseTotal += roster[i]
else:
loseTotal += 1000
loseAverage = loseTotal / 5
difference = loseAverage - winAverage
for i in Won:
if i in roster:
roster[i] += f(difference)
for i in Lost:
if i in roster:
roster[i] -= f(difference)
for name in roster:
fullRoster[name] = [roster[name], fullRoster[name][1]]
Roster.Edit("c", fullRoster)
