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

[Yury Selivanov]

Yury Selivanov <yselivanov at gmail.com> added the comment:

Guido,

The second example ("No active exception to reraise") was an actual long open bug.  It was recently fixed by Mark Shannon in [1].

I think we should be able to fix the first case (missing __context__) although it's not critical.  I'll look into it after the context PEP and few other open asyncio issues.

[1] https://github.com/python/cpython/pull/1773

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