I've looked for classes in my /usr/lib/python2.4 directory. I won't go over all the 7346 classes that were found there, but let's see:
"identity objects" that will continue to work because they contain other "identity objects" ======================== SocketServer, and everything which inherits from it (like HTTPServer) Queue csv (contains _csv objects) "value objects" that would probably gain a meaningful equality operator ============================================ StringIO ConfigParser markupbase, HTMLParser HexBin, BinHex cgi.FieldStorage AST Nodes others ====== Cookie - inherits from dict its __eq__ method. I'll stop here. I was not strictly scientific, because I chose classes that I thought that I might guess what they do easily, and perhaps discarded classes that didn't look interesting to me. But I didn't have any bad intention when choosing the classes. I have seen no class that the change would damage its equality operator. I have seen quite a lot of classes which didn't define an equality operator, and that a value-based comparison would be the right way to compare them. I'm getting more convinced in my opinion. Noam _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
