`torchaudio` in "Installing Previous versions of PyTorch"

📚 Documentation

Site: https://pytorch.org/get-started/previous-versions/

Documentation suggests to install torchaudio without platform suffix for all environments.

pip install torch==1.10.1+cpu torchvision==0.11.2+cpu torchaudio==0.10.1 -f https://download.pytorch.org/whl/torch_stable.html

🔗 https://github.com/pytorch/pytorch.github.io/blob/60315c9ed9b677b0db2aeb4729abaa66325c0f7d/_get_started/previous-versions.md

This leads pip to install torchaudio-0.10.1+rocm4.1 on each platform (e.g. on CPU).

> docker run --rm --platform linux/amd64 -it python:3.9.10-buster bash                                                                                                                                                                     2022-04-04 10:37:55
root@0ff2f8492d4c:/# pip install torch==1.10.1+cpu torchvision==0.11.2+cpu torchaudio==0.10.1 -f https://download.pytorch.org/whl/torch_stable.html
Looking in links: https://download.pytorch.org/whl/torch_stable.html
Collecting torch==1.10.1+cpu
  Downloading https://download.pytorch.org/whl/cpu/torch-1.10.1%2Bcpu-cp39-cp39-linux_x86_64.whl (199.3 MB)
     |████████████████████████████████| 199.3 MB 47 kB/s
Collecting torchvision==0.11.2+cpu
  Downloading https://download.pytorch.org/whl/cpu/torchvision-0.11.2%2Bcpu-cp39-cp39-linux_x86_64.whl (16.1 MB)
     |████████████████████████████████| 16.1 MB 329 kB/s
Collecting torchaudio==0.10.1
  Downloading https://download.pytorch.org/whl/rocm4.1/torchaudio-0.10.1%2Brocm4.1-cp39-cp39-linux_x86_64.whl (2.7 MB)
     |████████████████████████████████| 2.7 MB 5.3 MB/s
Collecting typing-extensions
  Downloading typing_extensions-4.1.1-py3-none-any.whl (26 kB)
Collecting pillow!=8.3.0,>=5.3.0
  Downloading Pillow-9.1.0-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (4.3 MB)
     |████████████████████████████████| 4.3 MB 7.0 MB/s
Collecting numpy
  Downloading numpy-1.22.3-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (16.8 MB)
     |████████████████████████████████| 16.8 MB 16.4 MB/s
Installing collected packages: typing-extensions, torch, pillow, numpy, torchvision, torchaudio
Successfully installed numpy-1.22.3 pillow-9.1.0 torch-1.10.1+cpu torchaudio-0.10.1+rocm4.1 torchvision-0.11.2+cpu typing-extensions-4.1.1

We successfully install CPU version of torchaudio with the suffix:

root@4a53af59109a:/# pip install torch==1.10.1+cpu torchvision==0.11.2+cpu torchaudio==0.10.1+cpu -f https://download.pytorch.org/whl/torch_stable.html
Looking in links: https://download.pytorch.org/whl/torch_stable.html
Collecting torch==1.10.1+cpu
  Downloading https://download.pytorch.org/whl/cpu/torch-1.10.1%2Bcpu-cp39-cp39-linux_x86_64.whl (199.3 MB)
     |████████████████████████████████| 199.3 MB 46 kB/s
Collecting torchvision==0.11.2+cpu
  Downloading https://download.pytorch.org/whl/cpu/torchvision-0.11.2%2Bcpu-cp39-cp39-linux_x86_64.whl (16.1 MB)
     |████████████████████████████████| 16.1 MB 13.7 MB/s
Collecting torchaudio==0.10.1+cpu
  Downloading https://download.pytorch.org/whl/cpu/torchaudio-0.10.1%2Bcpu-cp39-cp39-linux_x86_64.whl (2.7 MB)
     |████████████████████████████████| 2.7 MB 14.4 MB/s
Collecting typing-extensions
  Downloading typing_extensions-4.1.1-py3-none-any.whl (26 kB)
Collecting pillow!=8.3.0,>=5.3.0
  Downloading Pillow-9.1.0-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (4.3 MB)
     |████████████████████████████████| 4.3 MB 9.5 MB/s
Collecting numpy
  Downloading numpy-1.22.3-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (16.8 MB)
     |████████████████████████████████| 16.8 MB 17.3 MB/s
Installing collected packages: typing-extensions, torch, pillow, numpy, torchvision, torchaudio
Successfully installed numpy-1.22.3 pillow-9.1.0 torch-1.10.1+cpu torchaudio-0.10.1+cpu torchvision-0.11.2+cpu typing-extensions-4.1.1

I was going to send a patch but I also thought it might be intentional since torchaudio without the suffix is consistently used in all the environments. So I'm here to ask if it is intended or not.

Start with _get_started/previous-versions.md at the linked revision and inspect the torchaudio entries across environments. Reproduce the documented CPU installation command and compare it with the suffix-qualified command shown in the issue. Done means the previous-versions instructions consistently install the intended torchaudio build for the relevant environment.