# Python Program for Calculating the Sum of a List of Numbers using recursion

In this example, we will write a recursive function to convert decimal to binary. To better understand this example, make sure you have knowledge of the following tutorials:-

## Python Program for Calculating the Sum of a List of Numbers using recursion

def listsum(numList):
if len(numList) == 1:
return numList[0]
else:
return numList[0] + listsum(numList[1:])

print(listsum([1, 2, 3, 5, 7, 9]))

The output of the above program is:-

27