[Python-Dev] Pep 550 module (original) (raw)

Guido van Rossum guido at python.org
Tue Aug 29 10:47:16 EDT 2017

On Tue, Aug 29, 2017 at 6:46 AM, Elvis Pranskevichus <elprans at gmail.com> wrote:

On Tuesday, August 29, 2017 9:14:53 AM EDT Yury Selivanov wrote: > On Tue, Aug 29, 2017 at 6:53 AM, Nick Coghlan <ncoghlan at gmail.com> wrote: > > Given the refocusing of the PEP on the context variable API, with > > the > > other aspects introduced solely in service of making context > > variables work as defined, my current suggestion would be to make > > it a hybrid Python/C API using the "contextvars" + "contextvars" > > naming convention. > > > > Then all most end user applications defining context variables would > > > > need is the single line: > > from contextvars import newcontextvar > > I like it! > > +1 from me.

+1

OK, but does it have to look like a factory function? Can't it look like a class? E.g.

from contextvars import ContextVar

my_parameter = ContextVar()

async def some_calculation(): my_parameter.set(my_parameter.get() + 2) my_parameter.delete()

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