nested = [[1,2],[3,4],[5]] def flatten(nested): try: for sublist in nested: for element in flatten(sublist): yield element except TypeError: yield nested list(flatten([[[1],2],3,4,[5,[6,7]],8])) #[1, 2, 3, 4, 5, 6, 7, 8] #2nd Example #def flatten(nested): # try: #Don't iterate over string-like objects: # try: nested + '' # except TypeError: pass # else: raise TypeError # for sublist in nested: # for element in flatten(sublist): # yield element # except TypeError: # yield nested #list(flatten(['foo',['bar',['baz']]])) #['foo', 'bar', 'baz']
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