Python 3.11.7 Test Suite Failure in Windows - Interpreter has more than one thread

[plooploops]

Bug report

Bug description:

I was running the python 3.11.7 test suite in a windows container (e.g. with python -m test --ignorefile C:\path\to\my\ignorefile) and noticed the following Runtime errors when running the test suite:

test test__xxsubinterpreters failed -- Traceback (most recent call last):
  File "C:\path\to\cpython\Lib\test\test__xxsubinterpreters.py", line 489, in test_main
    self.assertTrue(interpreters.is_running(main))
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
RuntimeError: interpreter has more than one thread

test test_interpreters failed -- Traceback (most recent call last):
  File "C:\path\to\cpython\Lib\test\test_interpreters.py", line 247, in test_main
    self.assertTrue(main.is_running())
                    ^^^^^^^^^^^^^^^^^
  File "C:\path\to\cpython\Lib\test\support\interpreters.py", line 82, in is_running
    return _interpreters.is_running(self._id)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
RuntimeError: interpreter has more than one thread

As a workaround I can add the test cases to the ignore file, but it would be worth understanding if this is a regression.

• I was able to run python -m test --ignorefile C:\path\to\my\ignorefile for python 3.11.6 and I did not need to ignore these tests to complete the test suite in a windows container

CPython versions tested on:

3.11.7

Operating systems tested on:

Windows (windows servercore ltsc2019)

[aisk]

This has been fixed by #109921, and that PR was backported to the 3.12 branch.

But as https://devguide.python.org/versions/ shows, 3.11 will only accept security fixes starting from two months ago, so I think we won't backport that PR to 3.11.