Modify ShutDownImminentException inheritance #2341
Merged
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Change ShutDownImminentException to inherit from BaseException instead of Exception. Consider the difference:
If ShutDownImminentException is raised during
do_long_task(), then code will continue to execute which is against the spirit of ShutDownImminentException. It is semantically similar to something like a KeyboardInterupt, and so should be modelled like one.