[issue29587] Generator/coroutine 'throw' discards exc_info state, which is bad

[Chris Jerdonek]

Chris Jerdonek <chris.jerdonek at gmail.com> added the comment:

By the way, I just posted a new issue about exception chaining getting suppressed, but this time in an asyncio setting with ensure_future():
https://bugs.python.org/issue40466

I first noticed this issue two or three years ago and raised it on the async-sig list. It was suggested there that this was a special case of the current issue. Having written code to fix the current issue, though, the ensure_future() issue still exists. So I filed a separate issue.

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