[Python-Dev] PEP 408 -- Standard library __preview__ package

[Matt Joiner]

+1
On Feb 4, 2012 8:37 PM, "Paul Moore" <p.f.moore at gmail.com> wrote:
>
> On 4 February 2012 11:25, Steven D'Aprano <steve at pearwood.info> wrote:
> > It strikes me that it would be helpful sometimes to programmatically
> > recognise "preview" modules in the std lib. Could we have a
recommendation
> > in PEP 8 that such modules should have a global variable called
PREVIEW, and
> > non-preview modules should not, so that the recommended way of telling
them
> > apart is with hasattr(module, "PREVIEW")?
>
> In what situation would you want that when you weren't referring to a
> specific module? If you're referring to a specific module and you
> really care, just check sys.version. (That's annoying and ugly enough
> that it'd probably make you thing about why you are doing it - I
> cannot honestly think of a case where I'd actually want to check in
> code if a module is a preview - hence my question as to what your use
> case is).
>
> Feels like YAGNI to me.
> Paul.
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