Oops, try again. Your code looks a bit off. Check the Hint if you need help! Your code threw the following error: range() integer step argument expected, got float.
def my_function(x): for i in range(0, len(x)): x[i] = x[i] * 2 return x print my_function(range(0,2,0.5)) # Add your range between the parentheses!