Question

Question: Write a program which first defines a function evens(n). The function should take an integer as the argument and return a list of n even integers starting with 2 using the range function which takes a third argument that is the “step”. Rewrite the function using the third argument in the range.

What I have so far:

def evens(n):
    evensLst = []

    for i in range(1,n+1):
            evensLst.append(2*i)
    return evensLst 

    for i in range(1,n+1):
            evensLst.append(3*i)
    return evensLst 

n = raw_input("Enter an integer: ") 
print "Evens: ", evens(n)

Answer 1

def evens(n):
    return [2*n for n in range(1, n+1)]

If you use the “third” argument of range, you get the list you are looking for directly.

def evens(n):
    return range(2, 2*n+1, 2)