Python: Invalid Literal for Int() Base 10
literals, python, radix
Solution
Well, whatever you did you typed in something that isn't actually a Base 10 number. This includes anything that isn't number characters or spaces. So don't type in that. :-)
Examples:
>>> int('04.9')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: invalid literal for int() with base 10: '04.9'
>>> int('4-')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: invalid literal for int() with base 10: '4-'
>>> int("Jack")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: invalid literal for int() with base 10: 'Jack'
Update: Yes you typed a '#'. That's not a valid number.
Problem
I'm writing code for a project to determine the validity of credit cards and i've hit a wall, it seems like all of the things i have tried so far are not working. This is giving me an error for the sumofodds function where j=int(card[i]) The error is "Invalid Literal for Int() with Base 10 Is there anyone that can give me some advce? ``` def sumofdoubles(): card=input() x=len(card) summ=0 for i in range(x-2,-1,-2): j=int(card[i]) u=j+j if u>9: h=u/2 summ=summ+h return(summ) def sumofevens(): card=input() x=len(card) summ=0 for i in range(x-2,-1,-2): j=int(card[i]) u=j+j if u<9: summ=summ+u return(summ) def sumofodds(): summ=0 card=input() x=len(card) for i in range(x-1,-1,-2): j=int(card[i]) summ=summ+j return(summ) def main(): card=input() length=len(card) summ=0 while(card!="#####"): if (card[0]=='4' or card[0]=='5' or card[0]=='6' or (card[0]=='3' and card[1]=='1')): dbls=sumofdoubles() evens=sumofevens() odds=sumofodds() if((dbls+evens+odds)%10==0): print("Valid") main() ``` This is the full traceback for those wondering ``` python test.py<s.input File "test.py", line 52 in <module> main() File "test.py", line 48, in main odds=sumofodds() File "test.py", line 33, in sumofodds j=int(card[i]) ValueError: invalid literal for int() with base 10: '#' ```