Python @property versus method performance - which one to use?

Question

I have written some code that uses attributes of an object:

class Foo:
    def __init__(self):
        self.bar = \"baz\"
myFoo = Foo()
print (myFoo.bar)
         


        

Answer 1

I would go for the refactoring, but only for a matter of style - it seems clearer to me that "fancy calculations" might be ongoing with a method call, while I would expect a property to be almost a no-op, but this is a matter of taste.

Don't worry about the decorator's performance... if you think that it might be a problem, measure the performance in both cases and see how much it does add (my guess is that it will be totally negligible if compared to your fancy calculations).