Chu Kevin wrote: <snip> > >>>class RoseLoveSomebodyElse: > def sayGoodBye(self): > print "Let's say goodbye tonight." > > >>>lover.__bases__+=(RoseLoveSomebodyElse,) > > >>>John_and_Rose.sayGoodBye() > a error occur > > IronPython.Objects.PythonAttributeError: 'lover' object has no > attribute 'sayGoodBye'
Thanks for the entertaining and yet still self-contained repro. It's a lot more fun than a lot of foo's and bar's. Unsurprisingly, you've found a bug. The bug is that __bases__ on old-style Python classes isn't settable. This is a simple bug to fix and we'll fix it for 0.7.6. The same bug is present for __dict__ on old-style classes - but not anymore on old-style instances (as of 0.7.5). There are a few similar attributes and we'll try to get most if not all of them in this space this time around. In IronPython's implementation, there has been more focus on new-style classes as they are presumably the future direction of Python's classes and they also are the route to the best integration with CLS types. If you change your example to make both lover and RoseLoveSomebodyElse extend object - and thus make them Python new-style classes - your example will run under IronPython. (Note: You will then discover that this changed example won't run in CPython with a complaint about no consistent MRO between object and RoseLoveSomebodyElse. So, we still have more work to do.) Thanks for the interesting bug - Jim _______________________________________________ users-ironpython.com mailing list users-ironpython.com@lists.ironpython.com http://lists.ironpython.com/listinfo.cgi/users-ironpython.com
