int object is not iterable while trying to sum the digits of a number?

I have this code:

inp = int(input("Enter a number:"))

for i in inp:
    n = n + i;
    print (n)

but it throws an error: 'int' object is not iterable

I wanted to find out the total by adding each digit, for eg, 110. 1 + 1 + 0 = 2. How do I do that?

Solution 1:

First, lose that call to int - you're converting a string of characters to an integer, which isn't what you want (you want to treat each character as its own number). Change:

inp = int(input("Enter a number:"))

to:

inp = input("Enter a number:")

Now that inp is a string of digits, you can loop over it, digit by digit.

Next, assign some initial value to n -- as you code stands right now, you'll get a NameError since you never initialize it. Presumably you want n = 0 before the for loop.

Next, consider the difference between a character and an integer again. You now have:

n = n + i;

which, besides the unnecessary semicolon (Python is an indentation-based syntax), is trying to sum the character i to the integer n -- that won't work! So, this becomes

n = n + int(i)

to turn character '7' into integer 7, and so forth.

Solution 2:

maybe you're trying to

for i in range(inp)

This will print your input value (inp) times, to print it only once, follow: for i in range(inp - inp + 1 ) print(i)

I just had this error because I wasn't using range()

Solution 3:

try:

for i in str(inp):

That will iterate over the characters in the string representation. Once you have each character you can use it like a separate number.