On Apr 22, 12:47 pm, Carl Banks <pavlovevide...@gmail.com> wrote: > On Thursday, April 21, 2011 11:00:08 AM UTC-7, MRAB wrote: > > On 21/04/2011 18:12, Pascal J. Bourguignon wrote: > > > chad<cda...@gmail.com> writes: > > > >> Let's say I have the following.... > > > >> class BaseHandler: > > >> def foo(self): > > >> print "Hello" > > > >> class HomeHandler(BaseHandler): > > >> pass > > > >> Then I do the following... > > > >> test = HomeHandler() > > >> test.foo() > > > >> How can HomeHandler call foo() when I never created an instance of > > >> BaseHandler? > > > > But you created one! > > > No, he didn't, he created an instance of HomeHandler. > > > > test is an instance of HomeHandler, which is a subclass of BaseHandler, > > > so test is also an instance of BaseHandler. > > > test isn't really an instance of BaseHandler, it's an instance of > > HomeHandler, which is a subclass of BaseHandler. > > I'm going to vote that this is incorrect usage. An instance of HomeHandler > is also an instance of BaseHandler, and it is incorrect to say it is not. > The call to HomeHandler does create an instance of BaseHandler. >
What do you mean by the "call to HomeHandler"? Don't I call HomeHandler after I create an instance of BaseHandler? Chad -- http://mail.python.org/mailman/listinfo/python-list
