[Solved] how do you add the values of variables in python?

Question

You can only add variables together if both variables are either an integer or a string, but not a boolean (well, you kinda can but it’s not effective). For example:

>>> var = 1
>>> var2 = 4
>>> var + var2
5

>>> stringvar="Hello "
>>> stringvar2 = 'world.'
>>> stringvar + stringvar2
'Hello world.'

>>> boolean1 = True
>>> boolean2 = False
>>> boolean1 + boolean2
1

The reason that works is because:

>>> True == 1
True
>>> False == 0
True

EDIT:

It seems you have added in more code, so I’ll show you what you’re doing wrong.

The reason you’re getting a Syntax Error is because you have elif ValueError. This doesn’t work. First, there isn’t even a ValueError, there can’t be as you have an input(). If you want to check whether a number is not 0 or 1, do this:

in1 = input("number 1 please")

if in1 == 1:
    final += 1 # I've also changed this. final += 1 is the same as final = final + 1
elif in1 == 0:
    final += 0
elif in1 != 1 or in1 != 0:
    print("please enter a 1 or a 0")

I highly suggest reading over some python tutorials. This is some basic syntax.

Accepted Answer