Recursive code to find the sum of all elements of a list in python

def findSum(list1): 
     if len(list1)== 1: 
        return list1[0] 
     else: 
        return list1[0]+findSum(list1[1:]) 
  
# driver code 
list1 =[] 
# input values to list 
list1 = [1, 2, 3, 4, 5] 
print(findSum(list1))

findSum(list1) is recursively called until the last element of the list.

For the above sample values in the list, the recursive call goes like below,

list1 = [12,34,67,8,91]
findSum(list1,5)

list1[0]+findSum(list1[1:],)

12+findSum([34,67,8,91])

12+34+findSum([67,8,91])

12+34+67+findSum([8,91])

12+34+67+8+findSum([91])

Now length of list is 1 so it returns first element,

12+34+67+8+91 which is equal to 212 printed on the console