multi-hit odds calc

def calc_odds(moves):
    tmp_rolls = { 0:1 }
    for move in moves :
        total_rolls = { }
        for move_dmg, move_roll in move.items() :
            for tmp_dmg, tmp_roll in tmp_rolls.items() :
                new_dmg = move_dmg+tmp_dmg
                added_roll = move_roll*tmp_roll
                if not new_dmg in total_rolls:
                    total_rolls[new_dmg] = added_roll
                else :
                    total_rolls[new_dmg] += added_roll
        tmp_rolls = total_rolls.copy()
    return total_rolls

def OHKO_odds(hp, moves, total_rolls):
    ko = 0
    total_odds = 39**(len(moves))
    for dmg, roll in total_rolls.items():
        if(dmg >= hp) :
            ko += roll
    return 10000*ko/total_odds // 100

MS = { 6:7, 7:31, 8:1 }
#R1 = { 17:13, 18:13, 19:12, 20:1 }
#R2 = { 34:7, 35:6, 36:6, 37:7, 38:6, 39:6, 40:1 }
D = { 17:13, 18:13, 19:12, 20:1 }
D_1 = { 25:4, 26:9, 27:8, 28:9, 29:8, 30:1 }

hp = 69
moves = [ MS, MS, MS, MS, MS, D, D ] # [D_1, D_1, D_1]

rolls = calc_odds(moves)
ohko = OHKO_odds(hp, moves, rolls)

print(rolls)
print(ohko)