I can't understand the bug

Question

I can't understand why do output is nothing
https://sololearn.com/compiler-playground/cJy83L6tB1IH/?ref=app

Answer 1

you are comparing choice to numbers. input is string. they will never be equal.

choice == 1

but if i input 1, it is actually '1'

'1' == 1 will always be False

so you have to either convert input to int or compare to string.

choice = int(input())

or

choice == '1'

Answer 2

If you convert the input to integer like this...

choice = int(input())

....then it works.