[Python-Dev] Type hints -- a mediocre programmer's reaction

[Antoine Pitrou]

On Tue, 21 Apr 2015 09:28:45 -0700
Guido van Rossum <guido at python.org> wrote:
> On Tue, Apr 21, 2015 at 12:49 AM, Antoine Pitrou <solipsis at pitrou.net>
> wrote:
> 
> > On Mon, 20 Apr 2015 20:43:38 -0400
> > "R. David Murray" <rdmurray at bitdance.com> wrote:
> > > +1 to this from me too. I'm afraid that means I'm -1 on the PEP.
> > >
> > > I didn't write this in my earlier email because I wasn't sure about it,
> > > but my gut reaction after reading Harry's email was "if type annotations
> > > are used in the stdlib, I'll probably stop contributing".  That doesn't
> > > mean that's *true*, but that's the first time I've ever had that
> > > thought, so it is probably worth sharing.
> >
> > I think it would be nice to know what the PEP means for daily stdlib
> > development. If patches have to carry typing information each time they
> > add/enhance an API that's an addition burden. If typing is done
> > separately by interested people then it sounds like it wouldn't have
> > much of an impact on everyone else's workflow.
> >
> 
> This point will be moot until new code appears in the stdlib whose author
> likes type hints. As I said, we won't be converting existing code to add
> type hints (I'm actively against that for the stdlib, for reasons I've
> explained already).

I was thinking of potential stub files. Or are you also putting a ban
on those for existing stdlib code? Sorry if that has already been
answered...

Regards

Antoine.