Guido van Rossum wrote: > Do we really need both __context__ and __cause__?
Well, it depends whose needs we're trying to meet. If we want to satisfy those who have been asking for chaining of unexpected secondary exceptions, then we have to provide that on some attribute. If we also want to provide the facility that Java and C# provide with initCause/InnerException, then we need a separate attribute devoted to explicit chaining. The Java and C# documentation is clear that the cause/inner exception is to be set only on an exception that is "caused" or a "direct result" of the primary exception, which i've taken as a sign that this is an important distinction. I wanted to give a shot at making both camps happy. If the two were unified, we'd still be better off than we are now, but we should be aware that we would not be providing the functionality that Java and C# provide. -- ?!ng _______________________________________________ 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
