Serhiy Storchaka added the comment: > sys.getsizeof is certainly CPython-specific. However, __sizeof__ is not > just an implementation detail of sys.getsizeof, just as __len__ is not an > implementation detail of len(). Authors of extension types are supposed to > implement it if object.__sizeof__ is incorrect.
I think there is one difference between __len__ and __sizeof__. __sizeof__ should be overloaded only for C-implemented classes. IMHO, it is a part of C API. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue15436> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com