How to add raw input values in Python? [closed]

Answer 1

You have to cast them as ints:

legs = int(raw_input("How many legs do you have? "))
arms = int(raw_input("And how many arms do you have? "))

Example

>>> number_of_limbs(legs, arms, limbs)
You have 2 legs O.o
You also have 2 arms o.O
You have 4 limbs!! O.O

This is because you are adding strings and when you do string+string it simply concatenates the two strings together. This is because the default type of raw_input is str

>>> '2'+'2'
'22'
>>> int('2')+int('2')
4

Answer 2

Convert them to integers:

legs = int(raw_input("How many legs do you have? "))
arms = int(raw_input("And how many arms do you have? "))

---

At the moment they are strings, this is the default datatype from raw_input.

>>> example = raw_input()
2
>>> type(example)
<class 'str'>

When you add two strings together (right there you have '2' and '2'), Python just concatenates them into one single string. (So in that case it will result in '22')

>>> '2' + '2'
'22'

---

It should now give the correct result.

A minimal example of what the fixed version does:

>>> legs = int(raw_input())
2
>>> arms = int(raw_input())
2
>>> limbs = legs + arms
>>> limbs
4

You can now pass that to the function without trouble.