On Tue, 16 Jan 2018 17:18:06 -0800
Nathaniel Smith <[email protected]> wrote:
> On Tue, Jan 16, 2018 at 5:06 PM, Yury Selivanov <[email protected]>
> wrote:
> >
> > I think it would be a very fragile thing In practice: if you have even
> > one variable in the context that isn't pickleable, your code that uses
> > a ProcessPool would stop working. I would defer Context pickleability
> > to 3.8+.
>
> There's also a more fundamental problem: you need some way to match up
> the ContextVar objects across the two processes, and right now they
> don't have an attached __module__ or __qualname__.
They have a name, though. So perhaps the name could serve as a unique
identifier? Instead of being serialized as a bunch of ContextVars, the
Context would then be serialized as a {name: value} dict.
Regards
Antoine.
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