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

Yury Selivanov yselivanov.ml at gmail.com
Wed Aug 23 15:14:04 EDT 2017

On Wed, Aug 23, 2017 at 2:47 PM, Guido van Rossum <guido at python.org> wrote:

In favor of ImplicitContext is one point: it is indeed "implicit" if you compare it with the "explicit" way of passing state around, which would require an extra argument containing the state for any function that uses the state or calls a function that uses the state (recursively).

This is a good point, now I understand the reasoning better.

I guess I'm looking at this from a perspective of PEP 550 users. They will use either ContextKey-like API described in the PEP now, or something similar to threading.local() to store values in the context of a generator or an async task. From the standpoint of the user, they work with some sort of of a "global" variable. To me, renaming LC to ImplicitContext sounds similar to saying that using global variables is implicit, or calling "global" scope "implicit".

Yury

More information about the Python-Dev mailing list