pytorch

159e1100 - [fix][tests] fix logic if env variables not present (#55664)

[fix][tests] fix logic if env variables not present (#55664) Summary: Fixes: https://github.com/pytorch/pytorch/issues/55670 Reference: https://github.com/pytorch/pytorch/pull/55522 **Cant Run tests locally without setting the ENV variables** <details> ``` (pytorch-cuda-dev) kshiteej@qgpu1:~/Pytorch/pytorch_opinfo$ pytest test/test_ops.py ======================================================================= test session starts ======================================================================== platform linux -- Python 3.8.6, pytest-6.1.2, py-1.9.0, pluggy-0.13.1 rootdir: /home/kshiteej/Pytorch/pytorch_opinfo, configfile: pytest.ini plugins: hypothesis-5.38.1 collected 0 items ========================================================================= warnings summary ========================================================================= ../../.conda/envs/pytorch-cuda-dev/lib/python3.8/site-packages/torch/backends/cudnn/__init__.py:73 /home/kshiteej/.conda/envs/pytorch-cuda-dev/lib/python3.8/site-packages/torch/backends/cudnn/__init__.py:73: UserWarning: PyTorch was compiled without cuDNN/MIOpen support. To use cuDNN/MIOpen, rebuild PyTorch making sure the library is visible to the build system. warnings.warn( ../../.conda/envs/pytorch-cuda-dev/lib/python3.8/site-packages/torch/testing/_internal/common_nn.py:1195 /home/kshiteej/.conda/envs/pytorch-cuda-dev/lib/python3.8/site-packages/torch/testing/_internal/common_nn.py:1195: UserWarning: Legacy tensor constructor is deprecated. Use: torch.tensor(...) for creating tensors from tensor-like objects; or torch.empty(...) for creating an uninitialized tensor with specific sizes. (Triggered internally at ../torch/csrc/utils/tensor_new.cpp:474.) random_samples = torch.DoubleTensor(1, 3, 2).uniform_() -- Docs: https://docs.pytest.org/en/stable/warnings.html ======================================================================= 2 warnings in 2.85s ======================================================================== ``` </details> https://github.com/pytorch/pytorch/blob/c7312f5271b9ce9ac988fffde90818354e5841b8/torch/testing/_internal/common_device_type.py#L479-L486 (When running locally where the environment variable is not set) The case when the env variable is not present, `os.getenv` returns `''` which is split and we get `['']` for `only_for` and `except_for`. https://github.com/pytorch/pytorch/blob/c7312f5271b9ce9ac988fffde90818354e5841b8/torch/testing/_internal/common_device_type.py#L496-L497 At this point, we take the branch and skip all the tests. ```python >>> if [''] and 'cuda' not in ['']: ... print("TRUE") ... TRUE ``` Pull Request resolved: https://github.com/pytorch/pytorch/pull/55664 Reviewed By: albanD Differential Revision: D27677752 Pulled By: malfet fbshipit-source-id: 071486e3b6b5113c56f0f956b8d99a5ab24068fe