steve wrote: > The example code from: http://sjbrown.ezide.com/games/example1.py.html > ... > def Notify( self, event ): > if not isinstance(event, TickEvent): Debug( " > Message: " + event.name ) > for listener in self.listeners.keys(): > #If the weakref has died, remove it and > continue > #through the list > if listener is None: > del self.listeners[ listener ] > continue > listener.Notify( event ) > > I can not figure out how 'event' can has reference to 'event.name'?
because the developer expects you to pass in an object that has a name attribute ? (one of the Event types defined at the top of that module, most likely). > Anyhow the 'event' has not defined! it's an argument to the method. > The 'event' dynamically get its own type through > isinstance(event,TickEvent):...? no, that line simply checks if it's a specific Event type, and enables debug logging for all other event types. </F> -- http://mail.python.org/mailman/listinfo/python-list
