When you update python files from CPython, could you leave version message to commit log? It is helpful when we update the files to future version later. Otherwise we need to check file content to check its version.

Here is guideline: https://rustpython.github.io/blog/2020/04/04/how-to-contribute-by-cpython-unittest.html
Here is an example: #4025

I'm waiting for this issue resolved before going further. #4157

we'd better to step on 3.11 before 3.12. 3.12 is very early version of next cpython.

functools is updated by #5078. threading is not.

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