I just recently started reading the python.org documents and it looked like a really interesting language. Now, since Visual Studio 2017 supports Python, I decided to finally actually start learning it. My friend challenged me to write a program that checks if a number is an Armstrong number.import sysdef isArmstrong(number):    arr = str(number)    count = len(arr)    res = 0    for x in range(0, count):        res += int(arr[x]) ** count    return res == numberif len(sys.argv) > 1:    arg = sys.argv[1]    print(arg +  is an armstrong number:  + str(isArmstrong(int(arg))))else:    print(No arguments passed! :-();Now this is the first solution that I could come up with. As you can see, it converts the number to a string to determine the amount of digits, and then handle them individually. Is this the smartest way to do it, or can it be done without converting to a string? If not: Is there anything I can do to improve this code performance-wise?
Decide if number is Armstrong number
python;python 3.x