[Tutor] class attributes

[Alex Kleider]

Problem solved (and so easily!)
A sincere thank you to both (Cameron & David) of you (and to the list in
general.)
Alex

On Sun, Dec 12, 2021 at 5:35 PM Cameron Simpson <cs at cskk.id.au> wrote:

> On 12Dec2021 16:35, Alex Kleider <alexkleider at gmail.com> wrote:
> >I'm trying to write a __repr__ method that can be easily changed to
> >show only the attributes in which I'm currently interested and want to
> >be able to easily change the attributes of interest.
> >My attempted solution is as follows:
> >
> >    def __repr__(self):
> >        attrs = ['SECRETARY',  # an easy to modify listing
> >                 'PATTERN',    # of attributes of interest
> >                 ]
> >        ret = []
> >        for attr in attrs:
> >            if hasattr(self, attr):
> >                ret.append("{}::{}".format(attr, self.attr))
> >            else:
> >                ret.append("{}::unassigned".format(attr))
> >        return ','.join(ret)
> >
> >Not surprisingly, I get the following error:
> >"""
> >    ret.append("{}::{}".format(attr, self.attr))
> >AttributeError: 'Club' object has no attribute 'attr'
> >"""
> >
> >I'd be grateful if anyone could suggest a way to get around the
> >problem. The built in method 'hasattr' is able to do the introspection
> >necessary to do its work so it seems what I want should be "doable".
>
> getattr(self, attr_name)
>
> Cheers,
> Cameron Simpson <cs at cskk.id.au>
> _______________________________________________
> Tutor maillist  -  Tutor at python.org
> To unsubscribe or change subscription options:
> https://mail.python.org/mailman/listinfo/tutor
>