Paramiko Threading Error

[mud]

On Jun 10, 3:47 am, David <71da... at libero.it> wrote:
> Il Tue, 7 Jun 2011 19:25:43 -0700 (PDT), mud ha scritto:
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> > Hi All,
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> > Does anybody know what the following error means with paramiko, and
> > how to fix it.
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> > I don't know what is causing it and why. I have updated paramiko to
> > version 1.7.7.1 (George) but still has the same issue.
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> > Also I can not reproduce the problem and therefore debugging is harder
> > for me.
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> > Exception in thread Thread-4 (most likely raised during interpreter
> > shutdown):
> > Traceback (most recent call last):
> >   File "/usr/lib64/python2.6/threading.py", line 532, in
> > __bootstrap_inner
> >   File "/usr/lib/python2.6/site-packages/paramiko/transport.py", line
> > 1574, in run
> > <type 'exceptions.AttributeError'>: 'NoneType' object has no attribute
> > 'error'
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> if I remember rightly, I got that kind of error when I tried to use a
> transport without setting up the paramiko's logging subsystem.
> Try to put in head of your code the line:
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> pk.util.log_to_file("log file name.txt")
>
> D.

Hi David,

I have tried that already because I though that the logging might
indicate what the issue is.

What I have found is that paramiko seems to be using threading which
is not %100 thread safe in python. So it seems that when the script
exits, the interpreter is failing to close the threads running and
therefor giving the exception.

What I have tried now is to go through all the connections objects
that I have opened, close them first if they are open before the
script exists. It appears to be working so far but only time will
tell.