Change conditional class instance of child class-CodePudding

I have a parent class called Organism which has a class attribute called isIntelligent and I create a variable called fitness based on the value of the class attribute isIntelligent likewise:

class Organism:

    isIntelligent = False
    
    def __init__(self):
        #some variables defined here


    if isIntelligent:

        @property
        def fitness(self):
            return 0

Now, I want to create two child classes, for example Rabbit and Fox, I want Rabbits to be intelligent and Foxs to be not. In accordance to that they should have the fitness property.

I tried to change the value of the isIntelligent variable inside the child classes likewise:

class Rabbit(Organism):

    isIntelligent = True

class Fox(Organism):

    isIntelligent = False

However, when I run the code and I expect the Rabbit objects to have the fitness variable, but they do not.

What would be the correct way to go about this ?

CodePudding user response：

Code that isn't in a method is executed when the class is defined, so it can't be dependent on the instance. You need to put the condition inside the property method.

@property
def fitness(self):
    if self.isIntelligent:
        return 0
    else:
        return 1