bisect_left为相同的参数返回不同的值

Question

我打电话给bisect_left两次，就像那样：

index = bisect_left([0.01,0.02,0.03,0.04,0.05],0.05)

获得index=4后，index=5一次。 有人遇到过这个bug吗？ 谢谢 R.D。