[Python-Dev] Remove typing from the stdlib

[Stéfane Fermigier]

On Fri, Nov 3, 2017 at 6:47 PM, Antoine Pitrou <solipsis at pitrou.net> wrote:

> On Fri, 3 Nov 2017 12:46:33 -0400
> "Eric V. Smith" <eric at trueblade.com> wrote:
> > On 11/3/2017 12:15 PM, Victor Stinner wrote:
> > > Hi,
> > >
> > > 2017-11-03 15:36 GMT+01:00 Guido van Rossum <guido at python.org>:
> > >> Maybe we should remove typing from the stdlib?
> > >> https://github.com/python/typing/issues/495
> >
> > > The typing module is not used yet in the stdlib, so there is no
> > > technically reason to keep typing part of the stdlib. IMHO it's
> > > perfectly fine to keep typing and annotations out of the stdlib, since
> > > the venv & pip tooling is now rock solid ;-)
> >
> > I'm planning on using it for PEP 557:
> > https://www.python.org/dev/peps/pep-0557/#class-variables
> >
> > The way the code currently checks for this should still work if typing
> > is not in the stdlib, although of course it's assuming that the name
> > "typing" really is the "official" typing library.
>
> I don't think other modules should start relying on the typing module at
> runtime.
>

They already do, as I've noted in my message about dependency injection,
and I find this quite elegant.

Previously, similar projects used decorators, or less elegant constructs.

  S.

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