I think if += would always have to make a copy, I would have opted to not support it for lists at all and just say .extend(), which does work in that tuple case.
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If all you’re looking to do is just click a button and get a decent print for a reasonable price, we recommend Fujifilm’s Instax Mini 12. It’s a basic instant camera that’s similar to our former pick, the Instax Mini 11, but with some minor updates. It still takes less than five minutes to start shooting, but the setup process is easier since all you need to do is twist the lens to either “on” or “off.” Such ease of use, combined with the camera’s thinner build, makes it particularly well-suited for kids and those new to photography.
春节前夕，习近平总书记在北京考察时来到这里，强调“要把传统和现代有机融合在一起”。
Not the day you're after? Here's the solution to yesterday's Strands.