Question

I have a Class in python, with the following attributes:

    self.number1 = 0
    self.number2 = 0
    self.divided = self.number1/self.number2

This of course throws up the zero error:

ZeroDivisionError: integer division or modulo by zero

The idea is that I will increment number1 and number2 later on, but will self.divided be automatically updated? If it is auto updated then how do I get around the zero error? Thanks.

Answer 1

No, self.divided is a simple attribute and will not automatically update. For dynamic attributes, use a property instead:

class Foo(object):
    number1 = 0
    number2 = 0

    @property
    def divided(self):
        return self.number1 / self.number2