Depth first flattens iterable
>>> list(recursive_flatten([1, [2], 3])) [1, 2, 3] >>> list(recursive_flatten([1, [2], [3, [4]]])) [1, 2, 3, 4] >>> list(recursive_flatten((([[None]], 2), (2,), 2))) [None, 2, 2, 2]
recursive_flatten()
Notes