On Mon, Dec 26, 2011 at 1:13 AM, Roy Smith <r...@panix.com> wrote: > If you were designing the interface from scratch, you would probably > represent that with an exception hierarchy
Or possibly with "returns a False value", giving the option of None for none available, False for none will ever be available. Of course, you then have to guarantee that your live return values will always boolify as True. ChrisA -- http://mail.python.org/mailman/listinfo/python-list
