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

[Amit Saha]

On Mon, Dec 9, 2013 at 6:08 PM, Rafael Knuth <rafael.knuth at gmail.com> wrote:
> 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.

>>> sum([int(digit) for digit in str(55)])
10

That's using list comprehensions. Since a string is basically a
sequence, you can do the above.

Best,
Amit.

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