[digisign]

Would have been more Pythonic as:

    if one_or_none() as foo:
        do_stuff(foo)

[aix1]

I didn't recognize this use of "as" as valid Python, but tried it in 3.9 just to be sure. Got a syntax error (as expected).

I am not fully up to speed with 3.10, but quickly checked the docs and it doesn't appear to have been added in 3.10 either.

Let me know if I'm missing something.

[digisign]

Oh, "would have" meaning python-dev chose a different spelling. Not, as in it would-have been better if the example was written this way.

[aix1]

Oh, I see now. Thanks for the clarification.