Recursion list sum

Write a python program of recursion list sum.

Test Data:

[1, 2, [3,4], [5,6]]

Expected Result:

21

def recursive_list_sum(L):

       total = 0

       for item in L:
               if type(item) == type([]):
                       total = total + recursive_list_sum(item)
               else:
                       total = total + item

       return total

# test
print(recursive_list_sum([1, 2, [3,4], [5,6]]))     # 21

See also

https://www.w3resource.com/python-exercises/data-structures-and-algorithms/python-recursion-exercise-3.php