#29023: running tests in parallel doesn't show exception chain (even with tblib)
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Reporter: Chris Jerdonek | Owner: nobody
Type: | Status: new
Cleanup/optimization |
Component: Testing framework | Version: master
Severity: Normal | Resolution:
Keywords: | Triage Stage:
parallel,exception,chain,traceback,pickling,tblib| Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by Simon Charette):
> Side question: why must pickling be used at all? Why can't we simply
render the traceback to a string using Python's traceback module, and then
send the string back? It seems like that would result in simpler, more
understandable code and sidestep many of the difficulties.
From what I know It's just the default behavior of the `multiprocessing`
module for inter process exception bubbling. I feel like it's a bit
harder than that as you still have to construct a `traceback` object from
the string on the parent process side to raise the appropriate exception.
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Ticket URL: <https://code.djangoproject.com/ticket/29023#comment:3>
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