Bug report

GitHub Actions continue to sporadically fail with PermissionError: [WinError 32] The process cannot access the file because it is being used by another process: 'D:\\a\\cpython\\cpython\\build\\test_python_5740�\\test_python_worker_5604�'.

The failure happens when a test creates a child process, shares a test directory with it, and the child outlives its parent.

#99464 was the previous attempt. Now we should try to implement #98219 (comment).

Note: this problem was reported a few times before:

• Seems hard to believe, but do multiple test cases share files? #98372
• Potential regression in Python 3.11 (multiprocess shutdown?) #97641
• A bunch of CI failures on main branch #97983