[Tutor] Immutable objects

[Steven D'Aprano]

On Thu, 19 Aug 2010 01:24:11 pm Nitin Das wrote:
> Hello,
>
>      Can somebody help me how to make immutable objects in python. I
> have seen overriding the __new__, __setattr__ methods.. but not
> comfortable with how to use them to make the object immutable.
>
> thanks in advance
> --nitin

I have found this useful:


http://northernplanets.blogspot.com/2007/01/immutable-instances-in-python.html

Keep in mind that the only way to make *truly* immutable objects in 
Python is to write them in C. Immutability of pure-Python objects can 
be broken if you try hard enough. Immutability is by cooperation, not 
enforced.



-- 
Steven D'Aprano