On 8/5/20 11:11 AM, Jonathan Goble wrote:
That's literally useless, because after running that there is nothing
stopping you from doing:
>>> a = 10
or even:
>>> a = "python has no constants"
And now a has a value different from 5.
There is nothing even remotely resembling const-ness to that class. In
order to get const-ness, you would need the ability to overload
assignments, like C++ can do. And Python can't do that, and that's
probably a good thing.
--> from aenum import Constant
--> class K(Constant):
... a = 5
... b = 'hello'
...
--> K.a
<K.a: 5>
--> K.a == 5
True
--> K.a - 3
2
--> K.a = 9
Traceback (most recent call last):
...
AttributeError: cannot rebind constant <K.a>
--> del K.a
Traceback (most recent call last):
...
AttributeError: cannot delete constant <K.a>
However, one can, of course:
del K
There is only so much one can do. ;-)
--
~Ethan~
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