I use 

torch.save

 to store some very large model, so it hangs forever when it uploads the model. Is there some flag to show a progress bar?

I'm assuming the upload is http upload (e.g. the default files server)?
If this is the case, the main issue we do not have callbacks on http uploads to update the progress (which I would love a PR for, but this is actually a "requests" issue)
I think we had a draft somewhere, but I'm not sure ...