En Tue, 02 Feb 2010 08:20:34 -0300, mk <mrk...@gmail.com> escribió:
Exception in thread Thread-9 (most likely raised during interpreter
shutdown):
Traceback (most recent call last):
File "/var/www/html/cssh.py", line 617, in ssh_connect
<type 'exceptions.AttributeError'>: 'NoneType' object has no attribute
'BadAuthenticationType'
So you started several threads, and one of them was in them middle of
connecting to somewhere when the program exited, correct?
This happens on interpreter shutdown, even though I do try to catch the
AttributeError exception:
try:
fake = paramiko.BadAuthenticationType
try:
self.conobj.connect(self.ip, username=self.username,
key_filename=self.sshprivkey, port=self.port, timeout=opts.timeout)
loginsuccess = True
except paramiko.BadAuthenticationType, e: # this is line 617
self.conerror = str(e)
except paramiko.SSHException, e:
self.conerror = str(e)
except socket.timeout, e:
self.conerror = str(e)
except socket.error, e:
self.conerror = str(e)
except AttributeError:
# this happens on interpreter shutdown
self.conerror = 'shutdown'
It's clear what happens: paramiko gets its attributes cleared or the
module perhaps gets unloaded and as result "paramiko" label leads to
None, which obviously has no attribute BadAuthenticationType.
As part of the interpreter shutdown procedure, module globals are set to
None. Code that might be executed in those very precarious circumstances
should NOT reference any globals.
However, even though this is surrounded by try .. except AttributeError
block, it evidently isn't catch. How to catch that exception? Or at
least preven displaying this message?
You could keep a local reference to those global names; by example, by
adding 'fake' default arguments:
def ssh_connect(self, other, arguments,
paramiko=paramiko, socket=socket):
...
or perhaps:
def ssh_connect(self, other, arguments):
BadAuthenticationType = paramiko.BadAuthenticationType
socket_timeout = socket.timeout
try:
...
except BadAuthenticationType, e:
...
except socket_timeout, e:
...
--
Gabriel Genellina
--
http://mail.python.org/mailman/listinfo/python-list
