Overload print

Chris Kaynor ckaynor at zindagigames.com
Wed Aug 25 23:43:51 CEST 2010


On Wed, Aug 25, 2010 at 2:23 PM, Glenn Hutchings <zondo42 at gmail.com> wrote:

> On 25 Aug, 22:18, Ross Williamson <rosswilliamson.... at gmail.com>
> wrote:
> > Is there anyway in a class to overload the print function?
> >
> > >> class foo_class():
> > >>      pass
> > >> cc = foo_class()
> > >> print cc
> >
> > Gives:
> >
> > <__main__.foo_class instance at ....>
> >
> > Can I do something like:
> >
> > >> class foo_class():
> > >>     def __print__(self):
> > >>           print "hello"
> > >> cc = foo_class()
> > >> print cc
> >
> > Gives:
> >
> > hello
>
> Yes.  Just define the __str__ method, like this:
>
> class foo_class():
>    def __str__(self):
>        return "hello"
> --
> http://mail.python.org/mailman/listinfo/python-list
>

I'd recommend looking at both the __str__ and __repr__ functions at
http://docs.python.org/reference/datamodel.html.

Depending on your specific use case, its possible __repr__ may be perfered
for you.
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