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2-liner: My own Iterable Checker solution in Creative category for Completely Empty by Stensen
Iterable = lambda i: hasattr(i, '__iter__') and i.__iter__ or hasattr(i, '__getitem__') and i.__getitem__
completely_empty = lambda v: Iterable(v) and all(completely_empty(i) for i in iter(v))
Nov. 18, 2020