@Ivan: Please stop bringing up that we should drop the implicit scope for comprehensions. I know you feel this way, but it's not going to happen.

@Serhiy: What does the PEP for async/await say? (Or is there a separate PEP for allowing async/await inside comprehensions?)

@Yury: Your thoughts?

I do think the code from the OP's example should be expected to work.

Does it / should it work the same way for generator expressions?