[Python-Dev] Re: Decimal data type issues (original) (raw)

Casey Duncan casey at zope.com
Fri Apr 16 10:32:14 EDT 2004

On Fri, 16 Apr 2004 10:53:35 -0300 "Batista, Facundo" <FBatista at uniFON.com.ar> wrote:

[Casey Duncan]

#- I find boolean arguments a general anti-pattern, especially given #we- have class methods. Why not use an alternate constructor like:: #- #- pi = #- Decimal.roundedtocontext("3.1415926535897932384626433832795") This is a good idea to me. We all must decide which of the following is better: a) Decimal(number) # no context used Decimal(number, context) b) Decimal(number) # no context used Decimal.usingcontext(number, context)

If the context must be explicitly provided as an argument (rather than just a flag) I think a) is better. It depends also on what other arguments the constructor has, and thus what other contracts it fulfills. Are there other optional arguments?

-Casey

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