Thanks Ville for this. It mostly looks good. I left some comments regarding “heterogenous”.

I extended the patch with related fixes, mainly outside the Doc/ and Lib/ directories. Whoever commits this should also regenerate importlib, the configure script, and Arg Clinic code (not included in patches).

I’m not too sure about the Lib/msilib/schema.py file because it looks like generated code. But I see that other people have fixed it, so maybe that is okay.