def METHOD_NAME(self):
    name = "xyzzy"
    self.assertNotIn(name, self.bootstrap._module_locks)
    lock = self.bootstrap._get_module_lock(name)
    self.assertIn(name, self.bootstrap._module_locks)
    wr = weakref.ref(lock)
    del lock
    support.gc_collect()
    self.assertNotIn(name, self.bootstrap._module_locks)
    self.assertIsNone(wr())