from upgrades import coin_multiplier base_lvl_coin_multiplier = coin_multiplier(0.5, 10) def lvl_up_multiplier(): lvl_up = True if lvl_up == True: base_lvl_coin_multiplier.cost *= 2.5 base_lvl_coin_multiplier.multiplier *= 5 print(base_lvl_coin_multiplier.cost)