Run all sessions for one python version, then for the next ...

[lhupfeldt]

How would this feature be useful?

I find that errors typically show up more often across different sessions, rather than different python versions.
An option to change the execution order to go through all sessions for a python version, before testing the next python version would help with fail-fast.
This could be extended to other parametrization, maybe as a separate option.

Describe the solution you'd like

An option or two (settable in noxfile).
There could also be a decorator for more flexibility, but this should not replace the option, as an option would be much simpler and require less maintenance of the noxfile.

Describe alternatives you've considered

Running multiple times with single python version. Not nice.

Anything else?

No response