Pytorch_geometric: Cannot install torch-geometric via requirement.txt

[mingloo]

The example requirement.txt is as below:

torch==1.3.1
torch-scatter==1.4.0
torch-sparse==0.4.3
torch-cluster==1.4.5
torch-geometric==1.3.2

Cannot successfully install the above packages via pip install -r requirement.txt

Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple
Collecting torch==1.3.1 (from -r requirement.txt (line 1))
Downloading https://pypi.tuna.tsinghua.edu.cn/packages/f9/34/2107f342d4493b7107a600ee16005b2870b5a0a5a165bdf5c5e7168a16a6/torch-1.3.1-cp37-cp37m-manylinux1_x86_64.whl (734.6MB)
|████████████████████████████████| 734.6MB 71kB/s
Collecting torch-scatter==1.4.0 (from -r requirement.txt (line 4))
Downloading https://pypi.tuna.tsinghua.edu.cn/packages/b8/c3/8bad887ffa55c86f120ef5ae252dc0e357b3bd956d9fbf45242bacc46290/torch_scatter-1.4.0.tar.gz
ERROR: Command errored out with exit status 1:
command: /home/minglu1/anaconda3/bin/python -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-8nqd722w/torch-scatter/setup.py'"'"'; __file__='"'"'/tmp/pip-install-8nqd722w/torch-scatter/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base pip-egg-info
cwd: /tmp/pip-install-8nqd722w/torch-scatter/
Complete output (5 lines):
Traceback (most recent call last):
File "", line 1, in
File "/tmp/pip-install-8nqd722w/torch-scatter/setup.py", line 3, in
import torch
ModuleNotFoundError: No module named 'torch'
----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

Is this an expected behavior?

[mingloo]

/cc @rusty1s

[rusty1s]

You cannot put both torch and the other packages into a single requirements.txt file, because the installation of those packages depend on torch :(

[mingloo]

You cannot put both torch and the other packages into a single requirements.txt file, because the installation of those packages depend on torch :(

Is it possible to add torch to install_requires in setup.py just like https://github.com/rusty1s/pytorch_geometric/blob/master/setup.py#L7 for torch-scatter, torch-cluster and torch-sparse so that we can have them in single requirements.txt?

@rusty1s

[mingloo]

Per my understanding, the torch-scatter, torch-cluster and torch-sparse are the kind of pytorch cpp/cuda extensions. Therefore, we have to install torch first then for these 3 packages.

@rusty1s Please correct me if my understanding is wrong.

[rusty1s]

That is absolutely correct. While the installation of torch-geometric does not require the installation of these packages, you can not install both torch and torch-scatter via a single pip command. This is a current limitation, sorry :(

[mingloo]

@rusty1s

No, worry. It's okay.