Codewars 8 kyu Exclusive "or" (xor) Logical Operator

Task

In some scripting languages like PHP, there exists a logical operator (e.g. &&, ||, and, or, etc.) called the "Exclusive Or" (hence the name of this Kata). The exclusive or evaluates two booleans. It then returns true if exactly one of the two expressions are true, false otherwise.

Verbalization

ひとつひとつ条件付けする

#Code

def xor(a,b):
    if a == False and b == False:
        return False
    if a == False and b == True:
        return True
    if a == True and b == False:
        return True
    if a == True and b == True:
        return False

Other example

def xor(a,b):
    return a != b