Paul Sijben wrote:
> All,
>
> in a worker thread setup that communicates via queues is it possible to
> catch exceptions raised by the worker executed, put them in an object
> and send them over the queue to another thread where the exception is
> raised in that scope?
>
> considering that an exception is an object I feel it ought to be
> possible, however I do not see how to go about it.
>
> does anyone have a pointer towards the solution?
Just raise the exception object found in the queue. Only make sure it _is_
an exception, as you can raise everything. So in your queue-putting-code
you might consider discriminating between the two cases, like this:
while True:
try:
result = 1, work()
except:
result = 2, sys.exc_info()[1]
queue.put(result)
-------
while True:
kind, result = queue.get()
if kind == 1:
do(result)
elif kind == 2:
raise result
Diez
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