[issue45088] Coroutines & async generators disagree on the iteration protocol semantics

[Yury Selivanov]

Change by Yury Selivanov :


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nosy: +gvanrossum

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[issue45088] Coroutines & async generators disagree on the iteration protocol semantics

[Yury Selivanov]

New submission from Yury Selivanov :

See this script:

  https://gist.github.com/1st1/eccc32991dc2798f3fa0b4050ae2461d

Somehow an identity async function alters the behavior of manual iteration 
though the wrapped nested generator.

This is a very subtle bug and I'm not even sure if this is a bug or not. 
Opening the issue so that I don't forget about this and debug sometime later.

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components: Interpreter Core
messages: 400951
nosy: lukasz.langa, pablogsal, yselivanov
priority: normal
severity: normal
stage: needs patch
status: open
title: Coroutines & async generators disagree on the iteration protocol 
semantics
type: behavior
versions: Python 3.10, Python 3.11

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