[issue31096] asyncio.stream.FlowControlMixin._drain_helper may lead to a blocking behavior

[Yury Selivanov]

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

Andrew, what are your thoughts on this one?

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nosy: +asvetlov
versions: +Python 3.8 -Python 3.5, Python 3.6

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