Sum of Integers - 'int' object is not iterable

Question

My question is related to the sum function in python.

So my code is

def black_jack(a, b):
    if sum(a, b) > 21:
        return 0
    else:
               


        

Answer 1

sum is builtin function, look at the documentation:

In [1]: sum?
Docstring:
sum(sequence[, start]) -> value

Return the sum of a sequence of numbers (NOT strings) plus the value
of parameter 'start' (which defaults to 0).  When the sequence is
empty, return start.
Type:      builtin_function_or_method

so you need to pass it a iterable! :
solution1

sum([a, b]) #list

solution2

sum((a, b)) #tuple