agent.py

class Agent(object):

    def __init__(self, bank, init_policy=2.5):
        self.policy = random.uniform(0, init_policy * 2)
        self.bank = bank

    def declared_price(self, intrinsic_cost):
        self.cost = intrinsic_cost
        self.price = max(self.policy * self.cost, 0)
        return self.price

    def pay(self, payment):
        assert payment >= self.price
        self.bank -= self.cost
        self.bank += payment
        
    def clone(self, mutation):
        cloned = Agent(self.bank)
        cloned.policy = self.policy + random.uniform(-mutation, mutation)
        return cloned