https://github.com/python/core-workflow/issues/41 is tracking the idea of requiring AppVeyor to pass for a PR to be mergeable so as to prevent people breaking Windows. Since two commits fixing tests for AppVeyor just landed I want to see if we can go a week without AppVeyor failing because of AppVeyor itself. If that threshold is met, I plan to turn on the requirement.

I'm stating this here mostly so people know to update the issue if a transient failure is spotted so that it can be fixed and the one-week clock can be reset.