Recursive lists in Python
I discovered by accident today that Python's lists can contain themselves. Python seems to represent this as "[...]".
123456789101112 | >>> l = [] >>> l.append(l) >>> l [[...]] >>> l.append(l) >>> l [[...], [...]] >>> l[0] [[...], [...]] >>> l[0][0][0][0][0][0][0] [[...], [...]] >>> |
Not sure there's a practical use-case for this but it's good to know. Better than crashing the interpreter, I guess.
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