New submission from Steven D'Aprano <steve+pyt...@pearwood.info>:

Split off from #34850 by Guido's request.

To help catch incorrect use of `is` when `==` is intended, perhaps we should 
add an interpreter mode that disables the caches for small ints and interned 
strings.

Nathaniel called it "chaos mode" but I don't like the name as there is nothing 
chaotic about the lack of such caches, and it doesn't come close to chaos 
testing (e.g. Netflix's Chaos Monkey tool).

----------
components: Interpreter Core
messages: 326838
nosy: gregory.p.smith, njs, steven.daprano
priority: normal
severity: normal
status: open
title: Add mode to disable small integer and interned string caches
versions: Python 3.8

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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue34867>
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