test_gc.py 文件源码

def tearDown(self):
        # Restore gc state
        del self.visit
        gc.callbacks.remove(self.cb1)
        gc.callbacks.remove(self.cb2)
        gc.set_debug(self.debug)
        if self.enabled:
            gc.enable()
        # destroy any uncollectables
        gc.collect()
        for obj in gc.garbage:
            if isinstance(obj, Uncollectable):
                obj.partner = None
        del gc.garbage[:]
        del self.othergarbage
        gc.collect()