On Wed, Dec 30, 2015, at 07:50, Chris Angelico wrote: > I believe that's true, yes. The meaning of "by default" there is that > "class X: pass" will make an old-style class. All built-in types are > now new-style classes.
To be clear, AFAIK, built-in types were never old-style classes - prior to the introduction of the new type system (i.e. in Python 2.1 and earlier) they were not classes, and afterwards they were immediately new-style classes. -- https://mail.python.org/mailman/listinfo/python-list