The blog itself isn't clear, and I think that's confusing some of the people here:

> The candidate this time was programming in python

But the code blocks aren't in python. But in the paragraph afterwards they capitalize "True" which is a python thing. Then afterwards mention they're using javascript as their reference, which uses "true" instead and the code blocks could be javascript.

It feels like the author has more language confusion going on than just this one feature of python.

That's why i put "style" in quotes, the interviewer didn't know about the feature but still decided it was "wrong" or "ugly" even though the code works.