[SOLVED] Function - calculate the total mark in list from user input

Question

Im trying to calculate the total of student marks from an input but it told me :

"total +=x
TypeError: unsupported operand type(s) for +=: 'int' and 'str'".

stud_mark = input("Enter marks *separates by commas*:")

def cal_total(stud_mark):
total = 0
for x in stud_mark:
total +=x
return total

cal_total(stud_mark)

Answer 1

stud_mark is a string. You should convert it to an array by doing

stud_mark = input('Enter marks by comma:').split(',')

now you can iterate on it

Answer 2

replace the first line by
stud_mark=map(int,input('Enter marks by comma').split(','))
this is to be done because we have to convert all the number to integer as in that case they are strings.

Answer 3

Oh, i got it now. I tried int(input("etc")) but it gave me error. Guess i had to put the map and the split .. now i understand. Thank you :)