On Sat, Nov 11, 2017 at 12:39 AM, Nathaniel Smith <n...@pobox.com> wrote: > On Fri, Nov 10, 2017 at 9:52 PM, Chris Jerdonek > <chris.jerdo...@gmail.com> wrote: >> Hi, I recently encountered a situation with asyncio where the stack >> trace is getting truncated: an exception isn't getting chained as >> expected. >> >> I was able to reduce it down to the code below. >> >> The reduced case seems like a pattern that can come up a lot, and I >> wasn't able to find an issue on the CPython tracker, so I'm wondering >> if I'm doing something wrong or if the behavior is deliberate. > > I think what you're seeing is collateral damage from some known > bugginess in the generator/coroutine .throw() method: > https://bugs.python.org/issue29587
Ah, thanks for the great explanation, Nathaniel! >From the original bug report Nathaniel filed above: > It's likely that more people will run into this in the future as async/await > becomes more widely used. ... :) --Chris _______________________________________________ Async-sig mailing list Async-sig@python.org https://mail.python.org/mailman/listinfo/async-sig Code of Conduct: https://www.python.org/psf/codeofconduct/
