pip 20.3 resolver incompatible with how .whls are built and shared

[lilleswing]

Hi,

I'm using the torch 1.6.0 whls listed here
https://pytorch-geometric.com/whl/torch-1.6.0.html

With the introduction of pip 20.3 strict resolver we are no longer able to install from this location. e.g.
pip install torch-sparse==latest+cu101 -f https://pytorch-geometric.com/whl/torch-1.6.0.html
As latest is not an official supported version number.

Even when attempting to install a specific version runs into issues

pip install torch-sparse==0.6.8+cu101 -f https://pytorch-geometric.com/whl/torch-1.6.0.html

Looking in links: https://pytorch-geometric.com/whl/torch-1.6.0.html
ERROR: Requested torch-sparse==0.6.8+cu101 from https://pytorch-geometric.com/whl/torch-1.6.0/torch_sparse-0.6.8%2Bcu101-cp36-cp36m-linux_x86_64.whl has different version in metadata: '0.6.8'

Here is the merge into pip that caused the issue
pypa/pip#9177

I'm not sure how to properly solve this issue. You want the metadata to point to a version regardless of cuda/cpu support, but I think the best way would b e to set the version metadata in the .whl to exactly the url you upload the .whl to.

[rusty1s]

Thanks for reporting. I will look into it.

[rusty1s]

This is now resolved. You can now install the packages via:

pip install torch-scatter -f https://pytorch-geometric.com/whl/torch-${TORCH}+${CUDA}.html

For example, for installing for PyTorch 1.7.0 with CUDA 11.0, type:

pip install torch-scatter -f https://pytorch-geometric.com/whl/torch-1.7.0+cu110.html

All "old" links are still intact. You can have a look at all possible combinations here.

[amonszpart]

This is now resolved. You can now install the packages via:

pip install torch-scatter -f https://pytorch-geometric.com/whl/torch-${TORCH}+${CUDA}.html

For example, for installing for PyTorch 1.7.0 with CUDA 11.0, type:

pip install torch-scatter -f https://pytorch-geometric.com/whl/torch-torch-1.7.0+cu110.html

All "old" links are still intact. You can have a look at all possible combinations here.

typo: https://pytorch-geometric.com/whl/torch-torch-1.7.0+cu110.html -> https://pytorch-geometric.com/whl/torch-1.7.0+cu110.html
It would be nice to include a requirements.txt version in the docs as well. Thanks!
(something like

--find-links https://pytorch-geometric.com/whl/torch-1.7.0+cu110.html
torch_scatter
--find-links https://pytorch-geometric.com/whl/torch-1.7.0+cu110.html
torch-sparse
--find-links https://pytorch-geometric.com/whl/torch-1.7.0+cu110.html
torch-cluster
--find-links https://pytorch-geometric.com/whl/torch-1.7.0+cu110.html
torch-spline-conv
torch-geometric==1.6.3

)

[rusty1s]

I don't think that this is possible, since installation depends on both local PyTorch and CUDA version :(