stan@stanlaptop:~/dev/cpython{issue-152391}$ rm Modules/_interpreters.cpython-316d-x86_64-linux-gnu.so 
stan@stanlaptop:~/dev/cpython{issue-152391}$ ./python -c "import _interpreters"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
    import _interpreters
ModuleNotFoundError: Standard library module '_interpreters' was not found
stan@stanlaptop:~/dev/cpython{issue-152391}$ ./python -m test test_interpreters
Using random seed: 134531407
0:00:00 load avg: 0.87 mem: 50.5 MiB Run 1 test sequentially in a single process
0:00:00 load avg: 0.87 mem: 50.5 MiB [1/1] test_interpreters
Failed to import test module: test.test_interpreters.test_channels
Traceback (most recent call last):
  File "/home/stan/dev/cpython/Lib/unittest/loader.py", line 433, in _find_test_path
    module = self._get_module_from_name(name)
  File "/home/stan/dev/cpython/Lib/unittest/loader.py", line 374, in _get_module_from_name
    __import__(name)
    ~~~~~~~~~~^^^^^^
  File "/home/stan/dev/cpython/Lib/test/test_interpreters/test_channels.py", line 11, in <module>
    from concurrent import interpreters
  File "/home/stan/dev/cpython/Lib/concurrent/interpreters/__init__.py", line 5, in <module>
    import _interpreters
ModuleNotFoundError: Standard library module '_interpreters' was not found

Failed to import test module: test.test_interpreters.test_queues
Traceback (most recent call last):
  File "/home/stan/dev/cpython/Lib/unittest/loader.py", line 433, in _find_test_path
    module = self._get_module_from_name(name)
  File "/home/stan/dev/cpython/Lib/unittest/loader.py", line 374, in _get_module_from_name
    __import__(name)
    ~~~~~~~~~~^^^^^^
  File "/home/stan/dev/cpython/Lib/test/test_interpreters/test_queues.py", line 10, in <module>
    from concurrent import interpreters
  File "/home/stan/dev/cpython/Lib/concurrent/interpreters/__init__.py", line 5, in <module>
    import _interpreters
ModuleNotFoundError: Standard library module '_interpreters' was not found

Failed to import test module: test.test_interpreters.test_stress
Traceback (most recent call last):
  File "/home/stan/dev/cpython/Lib/unittest/loader.py", line 433, in _find_test_path
    module = self._get_module_from_name(name)
  File "/home/stan/dev/cpython/Lib/unittest/loader.py", line 374, in _get_module_from_name
    __import__(name)
    ~~~~~~~~~~^^^^^^
  File "/home/stan/dev/cpython/Lib/test/test_interpreters/test_stress.py", line 7, in <module>
    from concurrent import interpreters
  File "/home/stan/dev/cpython/Lib/concurrent/interpreters/__init__.py", line 5, in <module>
    import _interpreters
ModuleNotFoundError: Standard library module '_interpreters' was not found

test test_interpreters crashed -- Traceback (most recent call last):
  File "/home/stan/dev/cpython/Lib/test/libregrtest/single.py", line 210, in _runtest_env_changed_exc
    _load_run_test(result, runtests)
    ~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
  File "/home/stan/dev/cpython/Lib/test/libregrtest/single.py", line 165, in _load_run_test
    regrtest_runner(result, test_func, runtests)
    ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/stan/dev/cpython/Lib/test/libregrtest/single.py", line 118, in regrtest_runner
    test_result = test_func()
  File "/home/stan/dev/cpython/Lib/test/libregrtest/single.py", line 162, in test_func
    return run_unittest(test_mod, runtests)
  File "/home/stan/dev/cpython/Lib/test/libregrtest/single.py", line 38, in run_unittest
    raise Exception("errors while loading tests")
Exception: errors while loading tests

0:00:00 load avg: 0.87 mem: 52.5 MiB [1/1/1] test_interpreters failed (uncaught exception)

== Tests result: FAILURE ==

1 test failed:
    test_interpreters

Total duration: 506 ms
Total tests: run=0
Total test files: run=1/1 failed=1
Result: FAILURE