> When I close my (gtk) program, I get errors like the below.
> It seams that when the interpreter shuts down, it sets every variable to
> None, but continues running the threads, (seems only in cases where
> they've just been asleep)
> I don't think this would be intended behavior?

> Exception in thread Thread-4 (most likely raised during interpreter
> shutdown):
> Traceback (most recent call last):
>   File "/usr/lib/python2.4/threading.py", line 442, in __bootstrap
>   File "/home/thomas/Programmering/python/skak/0.7/lib/pychess/System/
> ThreadPool.py", line 49, in run
>   File "/usr/lib/python2.4/Queue.py", line 89, in put
>   File "/usr/lib/python2.4/threading.py", line 237, in notify
> exceptions.TypeError: exceptions must be classes, instances, or strings
> (deprecated), not NoneType
> Unhandled exception in thread started by
> Error in sys.excepthook:

> Original exception was: