Alex Vandiver e714264756 timeout: Re-raise from where the TimeoutExpired hit the thread. ...

Having just thrown an exception into the thread, it is often useful to
know _what_ was the slow code that we interrupted.  Raising a bare
TimeoutExpired here obscures that information, as any `exc_info` will
end there.

Examine the thread for any exception information, and use that to
re-raise.  This exception information is not guaranteed to exist -- if
the thread didn't respond to the exception in time, or caught it, for
instance.

2022-04-07 17:26:01 -07:00

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