a class that defines __slots__ without defining __getstate__ cannot be pickled

Hi,

I have now an error message showing up when accessing the django admin
interface for some of my models. Fails already at the front page

The main problem, that I have is, that the stack trace does not relate
to any line of my code, so I'm alittle at a loss how to fix it.

The stack trace is:

Traceback (most recent call last):
File "/usr/lib/python2.6/logging/handlers.py", line 541, in emit
s = self.makePickle(record)
File "/usr/lib/python2.6/logging/handlers.py", line 511, in makePickle
s = cPickle.dumps(record.__dict__, 1)
File "/opt/mh_python/lib/python2.6/copy_reg.py", line 77, in _reduce_ex
raise TypeError("a class that defines __slots__ without "
TypeError: a class that defines __slots__ without defining __getstate__
cannot be pickled

I think the issue might be related to the fact, that I am using a socket
logger and that socket logging tries to pickle the log record.
Perhaps the admin interface adds args to a log record, that cannot be
pickled?

Ther admin interface seems to work, but I don't really like having back
traces, that I don't understand in my logs.

How to best continue locating the root cause?

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