subclassing int and accessing the value

[Dave Reed]

> From: "Mark McEahern" <marklists at mceahern.com>
> Date: Mon, 8 Jul 2002 15:10:21 -0500
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> > Now my question is, how do I access the actual value 5 internally so I
> > can write my own __repr__ method that returns '$0.05'. I'm guessing it's
> > using __getattribute__, but what attribute do I want to access?
> 
> Short answer:  Look no farther than self.  ;-)
> 
> E.g.,
> 
> class money(int):
> 
>     def __init__(self, *args):
>         super(int, self).__init__(*args)
> 
>     def __str__(self):
>         return "$%1.2f" % (float(self) / 100)
> 
> x = money(5)
> 
> print x


Ugh, that's too simple :-) Thanks!

Is there a long answer? :-)


> If you're looking for a way to represent money, you may want to use a fixed
> decimal class.  I'm using Tim Peter's FixedPoint class.


Yes, I need to give this some more thought. If I actually end up using
this, it will need to interface with a database (MySQL or PostgreSQL)
so I need something that will be easy to back and forth between the
SQL representation and the Python representation.

I got your reply before I even saw my message show up on the list - I
must be near the bottom of the send list.

Thanks,
Dave