类型错误-pythonsimpy
我在网上搜索了很多关于TypeError的答案,并多次扫描了我的代码,但我似乎看不到我遗漏的第三个参数是什么。我正在使用Python 2.7和Simpy 3 我的代码如下:类型错误-pythonsimpy,python,python-2.7,typeerror,simpy,Python,Python 2.7,Typeerror,Simpy,我在网上搜索了很多关于TypeError的答案,并多次扫描了我的代码,但我似乎看不到我遗漏的第三个参数是什么。我正在使用Python 2.7和Simpy 3 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
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()
这就是我一直遇到的错误:
回溯(最近一次呼叫最后一次):
文件“”,第61行,在
main()
文件“”,第55行,主
环境运行(模拟时间)
文件“”,第120行,正在运行
self.step()
文件“”,第213行,在步骤中
引发事件。\u值
TypeError:\uuuu init\uuuuuu()正好接受3个参数(给定2个)
非常感谢您提供的任何帮助,提前感谢您您在回溯中忘记了一些额外的信息;在您引用的回溯上方,有几行文字说明:
Traceback (most recent call last):
File "/data/evertr/sw/lib/python2.7/site-packages/simpy/events.py", line 312, in _resume
event = self._generator.send(event._value)
File "simptest.py", line 31, in run
spare = yield self.spares_inventory.get()
TypeError: __init__() takes exactly 3 arguments (2 given)
The above exception was the direct cause of the following exception:
然后是你的追踪
有了它,您可以看到,self.spares\u inventory.get()
调用才是真正的罪魁祸首。令人烦恼的是,这个方法实际上是一个隐藏的类实例化(我注意到在simpy中有很多棘手的事情发生在幕后),这就是为什么您会看到\uuuu init\uuu()
警告
基本上,您需要向self.spares\u inventory.get()
提供一个金额
(无论好坏,没有方便的默认值1)
所以把它改成
spare = yield self.spares_inventory.get(1)
也许能解决你的问题
(但之后您会遇到其他错误;您会发现。这些新错误遵循相同的结构:回溯,然后是行。上述异常是以下异常的直接原因,然后是另一个(不太相关的)回溯)
spare = yield self.spares_inventory.get(1)