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Flatten list in Python
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| def flatten(l): | |
| if isinstance(l, list): | |
| out = [] | |
| out = flatten(l.pop()) + out | |
| if l: | |
| out = flatten(l) + out | |
| return out | |
| return [l] | |
| # Example | |
| l = [3, 1, [4, 1], [[5], [9]], [2, [6, 5]]] | |
| print(flatten(l)) |
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