[Python-Dev] Re: Decimal data type issues
aahz at pythoncraft.com
Mon Apr 19 10:11:44 EDT 2004
On Mon, Apr 19, 2004, Batista, Facundo wrote:
> #- Based on my reading of Tim's posts, there's also
> #- c) Decimal(number, [context]) # context always used, with
> #- # optional different from default
> Got it. But I think there're issues:
> a) You can specifiy the context as an optional argument.
> Decimal(number, [context])
> You can pass context as an argument, and this context will
> be used at creation time. If you don't pass the context,
> ¿no context is used or is used the "default" one? (with default
> I mean the context that it's on the thread at that time).
> With another specific method, that's avoided:
> b) You have to specify the context in other method.
> b.1) Decimal(number)
> This way you don't use the context at creation time.
> b.2) Decimal.using_context(number, [context])
> Always a context is used at creation time. If you specify
> the context, that's the one used. If you don't, the
> "default" context is used.
I really don't care much about what decision gets made here; I just
wanted to make sure all options were clearly specified.
> The issue is how to mix this syntax with the from_float one. What do you
This depends on what we choose as the mechanism for Decimal(). If the
default is contextless, then from_float() should also be contextless
with maximum precision.
Aahz (aahz at pythoncraft.com) <*> http://www.pythoncraft.com/
"I used to have a .sig but I found it impossible to please everyone..." --SFJ
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