[Python-Dev] proposal: add basic money type to the standard library (original) (raw)

M.-A. Lemburg mal@lemburg.com
Tue, 26 Feb 2002 21:31:52 +0100

Fredrik Lundh wrote:

and while I'm at it: I propose adding an "abstract" money base type to the standard library, to be subclassed by real money/decimal implementations. if isinstance(v, basemoney): # yay! it's money print float(money) # let's hope it's not too much The goal is not to standardize any behaviour beyond this; anything else should be provided by subtypes. More details here: http://effbot.org/ideas/money-type.htm I can produce PEP and patch if necessary.

Sounds like a plan.

One thing though: the RE "[+|-]?\d+(.\d+)?" should be extended to allow for currency symbols and names in front or after the monetary value.

Currency for money is a bit like timezones for datetime, so it's a good idea, not to add it to the base type interface. However, the interface should be extendable to include currency information.

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