我在网上搜索了许多与类型错误相关的答案,并多次扫描我的代码,但我似乎看不到我遗漏的第三个参数是什么。我使用的是python2.7和simpy3
我的代码如下:
import simpy
import random
RANDOM_SEED = 42
NUM_SERVERS = 1
MTBF = 10
MTTR = 5
TOTAL_ENGINES = 6
TOTAL_SPARES = 3
TOTAL_IN_USE = TOTAL_ENGINES - TOTAL_SPARES
SIM_TIME = 100
class Working(object):
def __init__ (self, env, num, repair_facility, spares_inventory, downtime):
self.env = env
self.repair_facility = repair_facility
self.spares_inventory = spares_inventory
self.downtime = downtime
self.name = 'Engine %d' % (num + 1)
print('%s at %.2f' % (self.name, self.env.now))
self.env.process(self.run())
def run(self):
yield self.env.timeout(random.expovariate(1.0 / MTBF))
print('%s at %.2f' % (self.name, self.env.now))
downtime_start = self.env.now
spare = yield self.spares_inventory.get()
self.downtime.append(self.env.now - downtime_start)
print('%s at %.2f' % (spare.name, self.env.now))
print('%d' % len(spares_inventory.items))
with self.repair_facility.request() as req:
yield req
print('%s begins repair at %.2f' % (self.name, self.env.now))
yield self.env.timeout(random.expovariate(1.0 / MTTR))
yield self.spares_inventory.put(self)
print('%s at %.2f' % (self.name, self.env.now))
print('%d' % len(spares_inventory.items))
def main():
env = simpy.Environment()
repair_facility = simpy.Resource(env, capacity = NUM_SERVERS)
spares_inventory = simpy.Container(env, capacity = TOTAL_ENGINES, init = TOTAL_SPARES)
downtime = []
working = [Working(env, i, repair_facility, spares_inventory, downtime) for i in range(TOTAL_IN_USE)]
env.run(SIM_TIME)
if __name__ == '__main__':
main()
这是我一直得到的错误:
回溯(最近一次呼叫):
^{pr2}$如有任何帮助,我们将不胜感激,谢谢
你在回溯中忘了一些额外的信息;在引用的回溯上,有几行是这样写的:
然后是你的回溯。在
这样,您就可以看到
self.spares_inventory.get()
调用才是真正的罪魁祸首。令人厌烦的是,这个方法实际上是一个隐藏的类实例化(我注意到在simpy中有很多复杂的事情发生在幕后),这就是为什么您看到__init__()
警告。在基本上,您需要为
amount
提供一个self.spares_inventory.get()
(无论好坏,都没有方便的缺省值1)。在所以把它改成
^{pr2}$可能会解决你的问题。在
(不过,在那之后你会遇到其他错误;你会发现的。这些新错误遵循相同的结构:一个回溯,然后是
The above exception was the direct cause of the following exception
行,然后是另一个(不太相关的)回溯)。在相关问题 更多 >
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