长度为 1 的 Tensor 无法用 bool 取值

[yt605155624]

>>> import paddle
>>> y = paddle.to_tensor([1,2])
>>> temp = paddle.to_tensor([True,False])
>>> y[temp]
Tensor(shape=[1], dtype=int64, place=CUDAPlace(0), stop_gradient=True,
       [1])
>>> y = paddle.to_tensor([1])
>>> temp = paddle.to_tensor([True])
>>> y[temp]
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/yuantian01/yt_py37/lib/python3.7/site-packages/paddle/fluid/dygraph/varbase_patch_methods.py", line 594, in __getitem__
    return _getitem_impl_(self, item)
  File "/home/yuantian01/yt_py37/lib/python3.7/site-packages/paddle/fluid/variable_index.py", line 463, in _getitem_impl_
    attrs=attrs)
  File "/home/yuantian01/yt_py37/lib/python3.7/site-packages/paddle/fluid/framework.py", line 3249, in append_op
    kwargs.get("stop_gradient", False))
  File "/home/yuantian01/yt_py37/lib/python3.7/site-packages/paddle/fluid/dygraph/tracer.py", line 45, in trace_op
    not stop_gradient)
ValueError: (InvalidArgument) The dtype of Tensor in list must be int32 or int64, but received: 0 (at /paddle/paddle/fluid/operators/utils.h:85)
  [operator < slice > error]

[paddle-bot-old]

您好，我们已经收到了您的问题，会安排技术人员尽快解答您的问题，请耐心等待。请您再次检查是否提供了清晰的问题描述、复现代码、环境&版本、报错信息等。同时，您也可以通过查看官网API文档、常见问题、历史Issue、AI社区来寻求解答。祝您生活愉快～

Hi! We've received your issue and please be patient to get responded. We will arrange technicians to answer your questions as soon as possible. Please make sure that you have posted enough message to demo your request. You may also check out the API，FAQ，Github Issue and AI community to get the answer.Have a nice day!

[FeixLiu]

对于temp的shape为[1]的时候，框架认为该variable是int/scalar，走了与shape不为1时不同的代码逻辑。是否会更新该逻辑使之支持您列出的问题，我们内部会安排评估，未来有计划尽快回复。

[CuberrChen]

@FeixLiu
请问这个问题有没有暂时的解决办法？我也遇到了相同的问题

[FeixLiu]

感谢您的反馈~这里的问题我们在最新的develop代码分支里已经支持#37761 预计在后续的正式版本中发布。
如果赶时间的话可以直接拉取最新的develop分支代码编译进行使用，编译流程可以参考这里https://www.paddlepaddle.org.cn/documentation/docs/zh/install/compile/linux-compile.html