Money data type

[Batista, Facundo]

Can't find it.

I mean something like:
[color=blue][color=green]
>> m1 = Money(decimal=2 )
>> m2 = Money(decimal=2 )
>> m1.value = 3.20
>> m2.value = 2.15
>> print m1 + m2[/color][/color]
5.35

5.35! Not 5.3500000000000 001 neither 5.3499999999999 9999999.

I think this is not a rare thing, but I can't find it in the standar library
neither the package index.

Thanks!

.. Facundo

[Lukasz Pankowski]

Re: Money data type

look at http://fixedpoint.sourceforge.net/ it gives you numeric object
for monetary applications (I have never used it)

--

=*= Lukasz Pankowski =*=

[Asun Friere]

Re: Money data type

"Batista, Facundo" <FBatista@uniFO N.com.ar> wrote in message news:<mailman.1 063823424.16083 .python-list@python.org >...[color=blue]
> Can't find it.
>
> I mean something like:
>[color=green][color=darkred]
> >> m1 = Money(decimal=2 )
> >> m2 = Money(decimal=2 )
> >> m1.value = 3.20
> >> m2.value = 2.15
> >> print m1 + m2[/color][/color]
> 5.35
>
> 5.35! Not 5.3500000000000 001 neither 5.3499999999999 9999999.
>
> I think this is not a rare thing, but I can't find it in the standar library
> neither the package index.
>
> Thanks!
>
> . Facundo[/color]

If it's merely a matter of representing itself you could do something
blindingly simple like:

class Dollars (float) :

def __repr__ (self) :
return "$%.2f" % self

def __add__ (self, other) :
return Dollars(float._ _add__(self, other))

#and so on for the other mathematical operators ...
[color=blue][color=green][color=darkred]
>>> a = Dollars(125.45)
>>> a[/color][/color][/color]
$125.45[color=blue][color=green][color=darkred]
>>> a + 25.6667[/color][/color][/color]
$151.12[color=blue][color=green][color=darkred]
>>>[/color][/color][/color]


Note this is _not_ to your spec (ie output includes a currency symbol
and input is simply a float).

[Asun Friere]

Re: Money data type

afriere@yahoo.c o.uk (Asun Friere) wrote in message news:<38ec68a6. 0309171738.3b3b ecda@posting.go ogle.com>...[color=blue]
>
> def __repr__ (self) :
> return "$%.2f" % self[/color]


Umm ...you might want to do the same to __str__ if you want to print ... :/