[Python-Dev] Mixing float and Decimal -- thread reboot

[Raymond Hettinger]

On Mar 23, 2010, at 5:09 AM, Stefan Krah wrote:
> 
> I like the simplicity of having a single signal (e.g. CoercionError), but
> a strictness context flag could offer greater control for people who only
> want pure decimal/integer operations.
> 
> 
> For example:
> 
>  strictness 0: completely promiscuous behaviour
> 
>  strictness 1: current py3k behaviour
> 
>  strictness 2: current py3k behaviour + pure equality comparisons
> 
>  strictness 3: current py3k behaviour + pure equality comparisons +
>                disallow NaN equality comparisons [1]
> 

The decimal module is already drowning in complexity,
so it would be best to keep it simple:  one boolean flag
that if set would warn about any implicit decimal/float
interaction.


Raymond