Ben Finney <[EMAIL PROTECTED]> writes: > Are there other, more dependable, ways of making immutable objects?
Your answer can be found at <URL: http://www.cs.bgu.ac.il/~omri/Humor/write_in_c.html > >> I'm curious as to why you care if people add attributes to your >> "immutable" class. Personally, I consider that instances of types >> don't let me add attributes to be a wart. > I refer you to a similar question: do you consider it a wart that you > can't add attributes to instances of Python's built-in types? Didn't I just say that I thought it was a wart? > Is this a wart? Why? Because it means I have to wrap them to if I want a typefoo with an extra attribute. I don't have to do that for classes. It makes builtin types different from user-defined classes in ways other than performance, which is a bad thing. > If it's not a wart, why would it be a wart for user-defined types to > have the same behaviour? It's a wart because user-defined classes *don't* have the same behavior. <mike -- Mike Meyer <[EMAIL PROTECTED]> http://www.mired.org/home/mwm/ Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information. -- http://mail.python.org/mailman/listinfo/python-list
