> Judging from the additional stars on GitHub, and projects that just migrated (pytest!), I'd say there's a very vocal minority which is very attached to single quotes.

Accuse me of selection bias. Immediately use even more biased selection bias.

Selection bias is real here.

I thought dbl quotes smart for all the reasons in the readme. Me commenting 'this is great' is just noise on HN, and discouraged by the rules. Never take self-selected anything as truth, especially comments (tweets/posts/voluntary votes)

This is all subjective unless some data is collected. I could say with just as much confidence that all of the major Python projects I've seen or contributed to use single quotes -- e.g. numpy or pandas.