I get the following error message:
Oops, try again. Your function crashed on  as input because your function throws a "'int' object is not iterable" error.
It gives me the correct answer but won't say complete
numbers = [1,2,3,4,5,6,7] def purify(l): a= for i in range(len(l)): if i % 2 ==0: a.append(i) return len(a) print purify([1,2,2,6,4,1,3]) print purify(numbers)