Bug report

Bug description:

FrameLocalsProxy should be a mapping. I.e. it should subclasscollections.abc.Mapping and match{} in a match statement.

fromcollections.abcimportMappingimportsysdeff():returnsys._getframe().f_localsproxy=f()assert(instance(proxy,Mapping))matchproxy:case {}:kind="mapping"case _:kind="other"assert(kind=="mapping")

CPython versions tested on:

CPython main branch

Operating systems tested on:

Linux

Linked PRs

• GH-120097: Make FrameLocalsProxy a mapping #120101
• [3.13] GH-120097: Make FrameLocalsProxy a mapping (GH-120101) #120749