The issue is that we define an Enum subclass that has no members (because we subsequently sub-class it to add the actual values), I have a 🔨 solution.

Sigh, I thought it was working locally because I was using an old mypy 😞

ok, 5th times the charm!

@greglucas noted that__hash__ was doing nothing (and moving it to the subclasses is what broke the tests) so the final version is to move just the_generate_next_value_ function to both sub-classes. At this point I think a single line function duplicated 2x is simpler than doing inheritance from a private class (that we want to get rid of anyway).

On the other hand, doing a conditional import onStrEnum may be better?

I've taken the liberty to add the missing space and force-push to keep the sequence of commits. The way they are written, I assume they should not be squashed.

@meeseeksdev backport to v3.10.0-doc