Bug report

Bug description:

importsyssys.implementation.supports_isolated_interpreters

This is missing, but the accepted PEP 734says this is provided so implementations can avoid supporting isolated interpreters (GraalPy, for example, does not yet). Was it overlooked, perhaps?

I was using it like this with 3.14.0b3:

if (sys.version_info>= (3,14)and (sys.version_info!= (3,14,0,"beta",1)orsys.version_info!= (3,14,0,"beta",2)        )andsys.implementation.supports_isolated_interpreters    ):fromconcurrentimportinterpreters

CC@ericsnowcurrently

CPython versions tested on:

3.14

Operating systems tested on:

macOS

Linked PRs

• gh-135645: Addedsupports_isolated_interpreters tosys.implementation #135667
• [3.14] gh-135645: Addedsupports_isolated_interpreters tosys.implementation (GH-135667) #135786