如何在autobahn python ApplicationSession .__ init__中引發異常？

我試圖使用高速公路-16.0.0，與ApplicationRunner，如this example在github上所示。如何在autobahn python ApplicationSession .__ init__中引發異常？

如果在join()被調用後發生異常，則所有事情都按預期工作。但是，如果在__init__方法中引發異常，我會得到AttributeError: 'ApplicationRunner' object has no attribute 'log'。我想知道是否有辦法做到這一點。

下面的代碼是重現問題的示例。

#!/usr/bin/python3 

import txaio 

import asyncio 
from asyncio import coroutine 
from autobahn.asyncio.wamp import ApplicationSession 
from autobahn.asyncio.wamp import ApplicationRunner 

class SessionWithException(ApplicationSession): 
    def __init__(self, config): 
     ApplicationSession.__init__(self, config) 
#  raise Exception('Some error exception') 

    def onConnect(self): 
     print("Connecting...") 
     self.join(self.config.realm) 
     raise Exception('Good exception') 

    @coroutine 
    def onJoin(self, details): 
     print("Joining...") 
     self.disconnect() 

    def onDisconnect(self): 
     print("Disconnecting...") 
     asyncio.get_event_loop().stop() 

def main(): 
    txaio.start_logging(level='error') 

    runner = ApplicationRunner("wss://api.poloniex.com:443", "realm1") 
    runner.run(SessionWithException) 

if __name__ == "__main__": 
    main()

當我出評論中__init__的raise，我得到這個錯誤：

Traceback (most recent call last): 
    File "/usr/lib/python3.4/site-packages/autobahn/wamp/websocket.py", line 60, in onOpen 
    self._session = self.factory._factory() 
    File "/usr/lib/python3.4/site-packages/autobahn/asyncio/wamp.py", line 125, in create 
    self.log.failure("App session could not be created! ") 
AttributeError: 'ApplicationRunner' object has no attribute 'log'

來源

2016-09-16 user1096555