On Tue, Sep 9, 2014 at 10:02 AM, Sydney Shall <s.sh...@virginmedia.com> wrote: > On 09/09/2014 15:44, Peter Otten wrote: > > Sydney Shall wrote: > > On 08/09/2014 18:39, Alan Gauld wrote: > > On 08/09/14 15:17, Juan Christian wrote: > > One tiny tweak... > > class User(): > > You don't need the parens after User. You don;t have any superclasses > so they do nothing. Python convention for an empty parent list is just > to leave the parens off: > > class User: > > A simple question from a newbie, in response to this surprise. > Is it not helpful to always put (object) as the parent, if the class is > not itself a sub-class? > > The answer differs between Python 2 and 3. In Python 3 > > class C: # preferred in Python 3 > pass > > and > > class C(object): > pass > > are the same, so there is no point adding the explicit object inheritance. > > In Python 2 however > > class C: > pass > > will create a "classic class" whereas > > class C(object): # preferred in Python 2 > pass > > is a "newstyle class". The most notable difference between these is that > properties work correctly only with newstyle classes. Therefore making all > your classes "newstyle" is a good idea. > > And while I am writing, what does OP stand for in this list? > > Original Poster, as Leam says. > > > _______________________________________________ > Tutor maillist - Tutor@python.org > To unsubscribe or change subscription options: > https://mail.python.org/mailman/listinfo/tutor > > Thanks Peter, most helpful. > I was taught with Python 2.7, so now I understand the advice. > > > -- > Sydney Shall > > _______________________________________________ > Tutor maillist - Tutor@python.org > To unsubscribe or change subscription options: > https://mail.python.org/mailman/listinfo/tutor >
Please post in plain text -- Joel Goldstick http://joelgoldstick.com _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
