[Twisted-Python] Handling errors when using deferToThread
andrew-twisted at puzzling.org
Fri Oct 28 10:56:22 EDT 2005
On Fri, Oct 28, 2005 at 10:35:08AM -0400, Pedro Sanchez wrote:
> This works well as long as doLongCalculation() doesn't fail for
> any reason. But if it does, how can it trigger an errBack?
Just raise an exception.
> I want to do something like this:
> from twisted.internet import threads
> def doLongCalculation():
> # .... do long calculation here ...
> < what can I return here to tell that
> the calculation failed? >
> return 3
The literal answer here is a bare raise statement. But better would be to
not use the try-except at all.
Try inserting something like "1/0" into doLongCalculation and see what
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