扭曲loopingcall访问类瓦尔

2012-01-06 58 views -1 likes

-1

class Intake: 
    def __init__(self): 

     # 
     # aggregate dict to store all the counters 
     # 
     self.counters = {} 

     # 
     # start a looping call to run reach minute 
     # 
     self.lc = task.LoopingCall(self.aggregate, self.counters) 
     self.lc.start(60) 


    def aggregate(self, counters): 
     print counters

使作品就好了..但在我的聚合函数，我需要清除出self.counters字典。我有问题，这样做..

我要像做

def aggregate(self, counters): 
     print counters 

     self.counters = {}

如果我在那个函数引用self.counters我得到

exceptions.AttributeError: Intake instance has no attribute 'counters'

来源

2012-01-06 Mike

...那么问题是什么？这不行吗？ – kindall 2012-01-06 21:29:44

我编辑了问题，在底部添加错误 – Mike 2012-01-06 21:39:35

回答

这是一个好主意，包括你的问题的一个可运行的例子，如果我尝试你描述它的工作正常。

from twisted.internet import task 

class Intake: 
    def __init__(self): 

     # 
     # aggregate dict to store all the counters 
     # 
     self.counters = {} 
     self.count = 0 
     # 
     # start a looping call to run reach minute 
     # 
     self.lc = task.LoopingCall(self.aggregate, self.counters) 
     self.lc.start(1) 


    def aggregate(self, counters): 
     print '%d, %r, %r' % (self.count, counters, self.counters) 
     self.count += 1 
     self.counters = {} 

if __name__ == "__main__": 
    from twisted.internet import reactor 
    r = Intake() 
    reactor.run()

来源

2012-01-07 13:08:23 Michaelnt

扭曲loopingcall访问类瓦尔

回答

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