I don’t think an incomplete python package will get uploaded. We will run some basic smoke tests before uploading these packages. Apparently, importing torch.cuda is one of them. Also, from the size of the package, it is normal, which is around ~500MB. However, I’ll check it later. As for the problem, have you completely removed the old installation? What if you do conda uninstall pytorch, pip uninstall torch, conda uninstall pytorch-nightly and pip uninstall torch-nightly in a row and then install it again? Also, would you please check if there is any pytorch installation in your PYTHONPATH?