[Tutor] How to call a method with a print statement?

[Wayne Werner]

On Thu, Nov 12, 2009 at 6:00 AM, Kent Johnson <kent37 at tds.net> wrote:

> <snip>
>
> 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
>
>
Which can be surprisingly useful in certain cases (I've used it for
debugging).

class Foo2:
    def __init__(self):
        self.name = 'This is my name'
        self.value = 'This is my value'

    def __repr__(self):
        return "Name: %s\nValue: %s" % (self.name, self.value)

In [2]: a = Foo2()

In [3]: a
Out[3]:
Name: This is my name
Value: This is my value

In [4]: print a
------> print(a)
Name: This is my name
Value: This is my value

HTH,
Wayne


-- 
To be considered stupid and to be told so is more painful than being called
gluttonous, mendacious, violent, lascivious, lazy, cowardly: every weakness,
every vice, has found its defenders, its rhetoric, its ennoblement and
exaltation, but stupidity hasn’t. - Primo Levi
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