Re: Naive question on [min, max] or [min, max)

保坂範行 wrote:
> Hi.
> 
> I have a naive question on min, max of class String in validators.py
> ==
> def validate_python(self, value, state):
>         if (self.max is not None and value is not None
>             and len(value) > self.max):
>             raise Invalid(self.message('tooLong', state,
>                                        max=self.max),
>                           value, state)
> ==
> why not  len(value) >= self.max ?
> 
> Python build-in range(start, stop, step), does not have stop in the
> resulting range.
> i.e. range(1. 3) => [1, 2]
> 
> I know it may be hard to change now due to impacts to users.
> I felt it bit strange, so  I want to know thoughts behind it.

It feels more natural to me, especially given the name "max".  That the 
max is non-inclusive would be surprising to most people.  I thought 
about adding a "range" variable which would be like Python and 
non-inclusive of its stop, but I never got around to it.

-- 
Ian Bicking : [email protected] : http://blog.ianbicking.org

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