[Python] Use of python property decorator for non-class attributes

Simple one that's been annoying me when I see it: Is it correct or pythonic to use the property decorator outside the getter/setter context where you are not returning a protected class attribute. For example:

class ExampleWithUnnecessaryProperty:

def __init__(self, a: str):
self._a = a # protected attribute

# This feels wrong to me - could be class attr, global const
@property
def arbitrary_attr(self) -> int:
return 5

# use as a getter of protected attrs
@property
def a(self) -> str:
return self._a

# setter dependant on getter - also makes perfect sense to me
@a.setter
def a.setter(self, value: str) -> None:
self._a = value


Any thoughts or links to relevant documentation? This is the best I can find: https://kb.novaordis.com/index.php/Python_Language_OOP_Attributes_and_Properties#:~:text=to%20Use%20Properties.-,When%20to%20Use%20Attributes%20and%20When%20to%20Use%20Properties,is%20retrieved%2C%20set%20or%20deleted.

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