gh-101758: Add a Test For Single-Phase Init Modules in Multiple Interpreters by ericsnowcurrently · Pull Request #101920 · python/cpython

Traceback (most recent call last):
  File "/Lib/test/libregrtest/runtest.py", line 360, in _runtest_inner
    refleak = _runtest_inner2(ns, test_name)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Lib/test/libregrtest/runtest.py", line 300, in _runtest_inner2
    the_module = importlib.import_module(abstest)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Lib/importlib/__init__.py", line 124, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1334, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1307, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1278, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 841, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 1015, in exec_module
  File "<frozen importlib._bootstrap>", line 400, in _call_with_frames_removed
  File "/Lib/test/test_imp.py", line 19, in <module>
    import _xxsubinterpreters as _interpreters
ModuleNotFoundError: No module named '_xxsubinterpreters'