[Python-Dev] RFC: PEP 509: Add a private version to dict

[Barry Warsaw]

On Apr 14, 2016, at 11:17 PM, Victor Stinner wrote:

>You're right that incrementing the global version is useless for these
>specific cases, and using the version 0 should work. It only matters
>that the version (version? version tag?) is different.
>
>I will play with that. If I don't see any issue, I will update the PEP.
>
>It's more an implementation detail, but it may help to mention it in the PEP.

I can see why you might want a global version number, but not doing so would
eliminate an implicit reliance on the GIL, or in a GIL-less implementation
<wink> a lock around incrementing the global version number.

-Barry