Function _running

Lib/test/test__interpreters.py:54–71

(interp)

@contextlib.contextmanager
def _running(interp):
    r, w = os.pipe()
    def run():
        _interpreters.run_string(interp, dedent(f"""
            # wait for "signal"
            with open({r}, encoding="utf-8") as rpipe:
                rpipe.read()
            """))

    t = threading.Thread(target=run)
    t.start()
    _wait_for_interp_to_run(interp)

    yield

    with open(w, 'w', encoding="utf-8") as spipe:
        spipe.write('done')
    t.join()


def clean_up_interpreters():