Georg Brandl <ge...@python.org> added the comment: This is a result of how old-style classes are implemented.
If you look at type(Old()), you can see that it isn't Old, but "instance". (And "instance" is a subclass of object again.) "issubclass" for old-style classes doesn't check type(o) but o.__class__, which are different: the former is "instance" and the latter your class. That is one reason we removed old-style classes in Python 3... ---------- nosy: +georg.brandl resolution: -> wont fix status: open -> closed _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue14671> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
