On 2018-11-21 21:36, Calvin Spealman wrote: > If you want to create your own immutable class, maybe inherit from a > namedtuple?
If you're tempted to go down that route and can require Python 3.7, use dataclasses! > > On Wed, Nov 21, 2018 at 11:45 AM Iwo Herka <iwohe...@gmail.com> wrote: > >> Hello, >> >> Let's say I want to implement immutability for user-defined class. >> More precisely, a class that can be modified only in its (or its >> super-class') __init__ method. My initial idea was to do it the >> following fashion: >> >> def __setattr__(self, *args, **kwargs): >> if sys._getframe(1).f_code.co_name == '__init__': >> return super().__setattr__(*args, **kwargs) >> raise AttributeError() >> >> What do you think of this approach? Is there a better one? >> Thanks. >> >> Sincerely, >> Iwo Herka >> -- >> https://mail.python.org/mailman/listinfo/python-list >> -- https://mail.python.org/mailman/listinfo/python-list
