Not sure if this should be a new issue, but platform.uname docs for 3.12 still say:

... Returns a namedtuple() containing six attributes: system, node, release, version, machine, and processor.

(my emphasis)

I've got python 3.10.6 installed, which returns 5 attributes, not including processor, as expected from the discussion above:

uname_result( system='Linux', node='MyName', release='5.15.0-48-generic', version='#54-Ubuntu SMP Fri Aug 26 13:26:29 UTC 2022', machine='x86_64' ) 

Originally posted by @dennisvang in #84750 (comment)

Linked PRs

• [3.11] gh-97966: Restore prior expectation that uname_result._fields and ._asdict would include the processor. (gh-98343) #99793
• [3.10] gh-97966: Restore prior expectation that uname_result._fields and ._asdict would include the processor. (gh-98343) #99794