On Fri, 3 Nov 2017 12:46:33 -0400 "Eric V. Smith" <e...@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 <gu...@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. The dataclasses module can define its own "ClassVar" thing and then I suspect it's easy to map it to typing._ClassVar. It seems we should be careful not to blur the distinction between declarations that have an effect on actual code, and typing declarations which only affect type-checking tools. Regards Antoine. _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
