Python Forum

Hi guys, I'm trying to return the summation of all even numbers, but the function won't return anything unless the parameter "y" is an odd number.

def sumOfEvens(x,y):
    total = 0

    while x <= y:

        if (x % 2 == 0):
            total = (total + x)
            
        elif (x == y):
            return total

        x = (x + 1)
            

---

I fixed it by removing the elif statment.

def sumOfEvens(x,y):
    total = 0

    while x <= y:

        if (x % 2 == 0):
            total = (total + x)
            
        x = (x + 1)

    return total
            

You know, a for loop would be much better in that situation:

def sum_evens(x, y):
    total = 0
    for z in range(x, y + 1):
        if z % 2:
            total += z
    return total