Thanks, it looks like the bot updated the label

Do you by any chance know why the 3.7.0 and 3.7.1 tests are failing with a metaclass conflict? I've been trying to debug it but I don't understand it.

Huh, I don't. Presumably some difference between typing.py in 3.7.1 and 3.7.2 is key. You should be able to get that out of the cpython repo by comparing the code for the respective tags. (It could also be something in collections.)

That looks okay -- what did you find was the problem? (In 3.7.2, which clause gets triggered?)

I suppose you have to click the "Ready for review" button.

I haven't figured out the metaclass conflict so on a lark I made it so that typing._alias() is called when run under 3.7.(0|1) to see if that would work. It made the tests pass, but I didn't know if that was "cheating" so I marked this as a draft to get feedback on that first.

I don't know for sure, but I suspect it doesn't really matter, and it gets the tests done, so I'm okay to take the plunge with this. If you agree, just mark it as Ready for review (which I could do, but I don't want to embarrass you if you've got second thoughts).

I came to the same conclusion. I think if I were to try to resolve the conflict, I would end up reimplementing the whole class and metaclass which seems like a lot of effort for two patch releases when the one-line solution works just as well.