xmlstream.py AttributeError

[giampaolo]

I get this after upgrading to latest version of sleek:

Traceback (most recent call last): File "/usr/lib64/python2.6/threading.py", line 532, in __bootstrap_inner File "/usr/lib64/python2.6/threading.py", line 484, in run File "/home/arka/arka.env/lib/python2.6/site-packages/sleekxmpp/xmlstream/xmlstream.py", line 1320, in _send_thread <type 'exceptions.AttributeError'>: 'NoneType' object has no attribute 'Empty'

[legastero]

Is this occurring as you're shutting down Sleek?

[giampaolo]

No, during startup.

[legastero]

I'm having difficulty reproducing this. I see you're using Python 2.6, but with RC2 or the develop branch? And are you just running one of the examples, or some custom code?

[giampaolo]

I'm using custom code, an actual (quite complex) app, so it's not easy to provide a snippet which reproduces the problem. I'll try to narrow down the issue and provide a piece of code which reproduces the problem.

[IoanCosminSzanto]

I kind of have the same problem (AttributeError in xmlstream) when closing a component connection using signals.

The code is the following:

import sys
import logging
import signal
import sleekxmpp
from sleekxmpp.componentxmpp import ComponentXMPP

if sys.version_info < (3, 0):
    from sleekxmpp.util.misc_ops import setdefaultencoding
    setdefaultencoding('utf8')
else:
    raw_input = input

def stop_call(signum, frame):
    xmpp.disconnect()

logging.basicConfig(
    level=logging.DEBUG,
    format="%(asctime)s %(levelname)-8s %(message)s")

signal.signal(signal.SIGINT, stop_call)
global xmpp
jid = "myjid"
password = "mypass"
server = "localhost"
port = 8894
xmpp = ComponentXMPP(jid, password, server, port)
if xmpp.connect():
    xmpp.process(block=True)

And the console output:

2016-09-07 18:14:55,334 DEBUG    Event triggered: session_bind
2016-09-07 18:14:55,335 DEBUG    Event triggered: session_start

^C2016-09-07 18:14:59,371 DEBUG    Event triggered: session_end
2016-09-07 18:14:59,372 DEBUG    SEND (IMMED): </stream:stream>
2016-09-07 18:14:59,372 INFO     Waiting for </stream:stream> from server
2016-09-07 18:15:03,372 DEBUG    Stopped event runner thread. 2 threads remain.
2016-09-07 18:15:03,373 DEBUG    Stopped send thread. 1 threads remain.
2016-09-07 18:15:03,373 DEBUG    Waiting for 1 threads to exit.
2016-09-07 18:15:04,341 DEBUG    Quitting Scheduler thread
2016-09-07 18:15:04,341 DEBUG    Stopped scheduler thread. 0 threads remain.
2016-09-07 18:15:04,389 DEBUG    Event triggered: disconnected
2016-09-07 18:15:04,389 DEBUG     ==== TRANSITION connected -> disconnected
2016-09-07 18:15:04,389 ERROR    'NoneType' object has no attribute 'recv'
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/sleekxmpp/xmlstream/xmlstream.py", line 1481, in _process
    if not self.__read_xml():
  File "/usr/lib/python2.7/site-packages/sleekxmpp/xmlstream/xmlstream.py", line 1523, in __read_xml
    for event, xml in ET.iterparse(self.filesocket, (b'end', b'start')):
  File "<string>", line 100, in next
  File "/usr/lib/python2.7/site-packages/sleekxmpp/xmlstream/filesocket.py", line 35, in read
    data = self._sock.recv(size)
AttributeError: 'NoneType' object has no attribute 'recv'

I have sleekxmpp version 1.3.1. Am I doing something wrong which causes this exception? Is it safe to ignore the exception since BaseXMPP.exception only logs it?