I’m attempting to use the @property decorator on a specific instance of a class in Python and not on the class itself, but I’m encountering issues. Here is what I typically do:

class MyNet:
    def __init__(self):
        self.weight = 1  # Example value

    @property
    def quantized_weight(self):
        return quantize(self.weight)

However, when I try to apply a property to just one instance of the MyNet class, it doesn’t behave as expected:

class MyNet:
    def __init__(self):
        self.weight = 1  # Example value

net = MyNet()

def quantized_weight(self):
    return quantize(self.weight)

net.quantized_weight = property(quantized_weight)

After executing the above code, when I attempt to access net.quantized_weight, instead of returning the result of the quantize function, it gives me <property at 0x7fdcf422bd30>.

Can someone explain why this occurs and how I can correct it so that the property works on an instance level as intended?

I read the documents on Python property: https://docs.python.org/3/library/functions.html#property

It shows that property should be used in Class.

I find this: Python property returning property object

So, how can i apply a function as property on an instance? I don’t want to break the other instance.