Re: error

On 4-7-2013 19:03, Pierre PACORY wrote:
> here a simple code execute on a debian 7.0
> with Pyro4 installed via pip
> 
> ------------------------------------------------------------------------------------
> 
> 
> #!/usr/bin/env python
> # -*- coding: utf-8 -*-
> 
> DEBUG=False
> 
> import Pyro4 # Publication d'objet (RPC)
> 
> if __name__ == '__main__':
>     daemon=Pyro4.Daemon(host="127.0.0.1",port=8888)
> 
> ------------------------------------------------------------------------------------
> 
> 
> Sometimes i've no error when executing this code
> and sometimes always have this error :
> 
> ------------------------------------------------------------------------------------
> 
> Exception in thread Pyro-Worker-38065744  (most likely raised during interpreter shutdown):
> Traceback (most recent call last):
>   File "/usr/lib/python2.7/threading.py", line 552, in __bootstrap_inner
>   File "/usr/local/lib/python2.7/dist-packages/Pyro4/tpjobqueue.py", line 48, in run
>   File "/usr/local/lib/python2.7/dist-packages/Pyro4/tpjobqueue.py", line 189, in getJob
> <type 'exceptions.AttributeError'>: 'NoneType' object has no attribute 'Empty'
> Exception in thread Pyro-Worker-38066128  (most likely raised during interpreter shutdown):
> 
> ------------------------------------------------------------------------------------
> 
> Any idea what the problem is !
> thks for your help

There's no problem really.
What you're seeing there is some code in one of Pyro's worker threads that is crashing
because the interpreter state is taken out underneath of it, due to interpreter
shutdown, as mentioned in the error.

You are aware that the tiny bit of code you posted creates a daemon and immediately
exits the program?   The daemon uses a pool of worker threads by default to handle
requests, and it spawns a bunch of those at startup. If the interpreter is taken down
while these threads are still running, sometimes Python produces the errors you are seeing.

I am not aware of any real way to avoid this with worker threads, maybe someone else knows?


Regargs
Irmen de Jong


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