Torsten Landschoff added the comment: I just bumped into this issue because I was shown by a colleague that my implementation of immutable objects (by replacing __dict__ with an ImmutableDict that inherits from dict and blocks write accesses) is ineffective - ouch!
I'd expect that Python either rejects subclasses of dict for obj.__dict__ or actually implements accessing correctly. Especially since the enum module created the impression for me that replacing __dict__ is a viable approach (enum.py uses __prepare__ in the meta class to provide a different dict class for enum types, just found https://www.python.org/dev/peps/pep-3115/). Interestingly the PEP 3115 example code notes the following: # Note that we replace the classdict with a regular # dict before passing it to the superclass, so that we # don't continue to record member names after the class # has been created. ---------- nosy: +torsten _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue1475692> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
