99% of the work is done by @aeros167; I've just needed to add a few more fixes and couldn't push to his branch; hence the new PR.

Thanks for finishing this up Yury. Out of curiosity, what additional changes needed to be made?

Thanks for finishing this up Yury. Out of curiosity, what additional changes needed to be made?

.write() and .close() were still awaitable -- which technically was committed before new streams api. Still we want to revert streams to their 3.7 state.

.write() and .close() were still awaitable -- which technically was committed before new streams api. Still we want to revert streams to their 3.7 state.

Ah, I wasn't aware we were also removing that change. I hadn't realized we were reverting fully back to the 3.7 API, I thought it was primarily just focused on 23b4b69. Now it makes a lot more sense why you wanted to remove _asyncio_internal.

@1st1: Please replace # with GH- in the commit message next time. Thanks!

Thanks @1st1 for the PR 🌮🎉.. I'm working now to backport this PR to: 3.8.
🐍🍒⛏🤖

Sorry, @1st1, I could not cleanly backport this to 3.8 due to a conflict.
Please backport using cherry_picker on command line.
cherry_picker 6758e6e12a71ef5530146161881f88df1fa43382 3.8

GH-16485 is a backport of this pull request to the 3.8 branch.