[Tutor] Converting integers into digit sum (Python 3.3.0)

[Rafael Knuth]

Hej there,

I wrote a program that converts an integer into a digit sum:

def DigitSum(YourNumber):
    DigitList = []
    YourNumber = str(YourNumber)
    for i in YourNumber:
        DigitList.append(int(i))
    print(sum(DigitList))

DigitSum(55)

>>>
10

It actually works but I was wondering if that's the only way to solve
the task of converting an integer into a digit sum?  I learned from
past conversations on this mailing list that often times there is a
better, more elegant and shorter way to write a program, and I was
wondering if that's the case here.

Thanks!

Raf