Why is it concatenating rather than adding?

Question

From array import *
arr = array('i',(1,2,3))
arr1 = array('i',(4,5,6))
arr2 = arr + arr1
Print(arr2)

Answer 1

If you just want to (mathematically) add 2 python arrays, you can do:

print([sum(x) for x in zip(arr, arr1)])
#[5, 7, 9]

An other option would be to use map() with module operator, that has a function add() that can do the same.

But why you are not using lists instead of python arrays?

Answer 2

Because it is suppose to concatenate only

https://www.programiz.com/JUMP_LINK__&&__python__&&__JUMP_LINK-programming/array

Answer 3

𝐊𝐢𝐢𝐛𝐨 𝐆𝐡𝐚𝐲𝐚𝐥 what if i don't want to use numpy and use simple ide?