#Make a list of functions to increment their arguments by 0 to 9. def make_incrementers(): result = [] for i in range(10): def incrementer(x, i=i): return x + i result.append(incrementer) return result #This will pass def test(): incs = make_incrementers() for x in range(10): for y in range(10): assert incs[x](y) == x+y test()