Question about python3 random number

Question

This is the question: Generate a three digit number and compute the sum of the digits

#This is my code:

import random

randomnum = random.randint(100,999)
print (randomnum)

value = 0

for x in randomnum:
print (x)
value += x

print ("the num is", randomnum, "the sum is", value)

The Error I'm getting is :
Traceback (most recent call last):

File "<ipython-input-55-0a3f61271835>", line 8, in <module>
for x in randomnum:

TypeError: 'int' object is not iterable

Could someone please help me find my mistake would appreciate it greatly. Thank you in advance!

Answer 1

# change:-
for x in randomnum:
print (x)
value += x
# to:-
for x in str(randomnum):
print(x)
value += int(x)

Answer 2

I'm new to this but had a similar problem myself, I changed the number into a string then you can treat each digit as a separate item.

Answer 3

The "for x in str(randomnum):" converts it to a string so as to make it iterable...
The "value += int(x)" then converts each element (x) back to an int and adds it to "value".

Answer 4

Oh amazing ! it worked now. @rodwynejones thank you very much! :)
could you also explain to me please why the randomnum has to be changed to a string?
why couldn't it add the value of zero + the necessary numbers?