[Python-Dev] PEP 550 v3 naming (original) (raw)

Ethan Furman ethan at stoneleaf.us
Wed Aug 23 18:47:44 EDT 2017

On 08/23/2017 12:17 PM, Yury Selivanov wrote:

How about ExecutionContext and ContextVars ?

We are already used to different levels of variables: global, local, non-local, class. I think having variables tied to a Context, and having search flow back to previous Contexts, would be easy to understand. Yeah, I had this idea about ContextVars and so far I like it more than Context Keys and Context Values. In the next version of the PEP (will post it soon), we use Execution Context, Logical Context, and Context Variable terminology (the debate if we should use other names is, of course, still open).

ContextVars is actually a different name for LogicalContext. So it would be:

ExecutionContext = [ContextVars()[, ContextVars()[ ...]]]

and you get the (thread.local similar) ContextVars by

context_vars = sys.get_context_vars() # or whatever context_vars.verbose = ...

-- Ethan

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