list index out of range in simple Python script

Question

I just started learning Python and want to create a simple script that will read integer numbers from user input and print their sum.

The code that I wrote is

Answer 1

You can also avoid the loop altogether:

inflow = '1 2 34 5'

Then

sum(map(int, inflow.split()))

will give the expected value

42

EDIT:

As you initialize your result with 1 and not 0, you can then also simply do:

sum(map(int, input.split()), 1)

My answer assumes that the input is always valid. If you want to catch invalid inputs, check Anton vBR's answer.