On Thu, Nov 12, 2009 at 6:35 AM, Luke Paireepinart <rabidpoob...@gmail.com> wrote: > > > On Thu, Nov 12, 2009 at 5:29 AM, Jeff R. Allen <j...@nella.org> wrote: >> >> You are looking for the __str__ method. See >> http://docs.python.org/reference/datamodel.html#object.__str__ >> > Can't you also implement __repr__?
Yes, in fact if you are only going to implement one of __str__ and __repr__, arguably __repr__ is a better choice. __repr__() is called by the interactive interpreter when it displays an object. __str__ is called by print, and if you don't define __str__ it will call __repr__. So defining only __str__ will not give a custom representation unless you print: In [1]: class Foo(): ...: def __str__(self): ...: return "I'm a Foo" In [2]: f = Foo() In [3]: f Out[3]: <__main__.Foo instance at 0x1433468> In [4]: print f I'm a Foo Defining __repr__ will give the custom representation when you just give the name of the object: In [5]: class Foo2(): ...: def __repr__(self): ...: return "I'm a Foo2" ...: ...: In [6]: f2=Foo2() In [7]: f2 Out[7]: I'm a Foo2 In [8]: print f2 I'm a Foo2 Kent _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
