On Fri, Apr 22, 2011 at 7:49 AM, Kyle T. Jones <onexpadrem...@evomeryahoodotyouknow.com> wrote: >> You don't need to create an instance of BaseHandler. You have the >> class, Python knows you have the class -- Python will look there if the >> subclasses lack an attribute. >> >> ~Ethan~ >> > > Really? That's not at all how I thought it worked in Python > (post-instantiation referencing of class and superclass code...)
Yes, it looks up the attribute in the superclass tree at the time that it's referenced, not at the time it's instantiated or at the time the class is created. So: >>> class Base(object): ... x = 5 ... >>> class Test(Base): ... pass ... >>> t = Test() >>> t.x 5 >>> Test.x = 42 >>> t.x 42 >>> Base.x = 7 >>> del Test.x >>> t.x 7 Or were you talking about something else? -- http://mail.python.org/mailman/listinfo/python-list