Currently, all upload and download procedures support a uniform progress bar, but it was rather painful to implement it for HTTP uploads, so it didn't make it to 1.3.0. It still needs to be added for uniformity's sake. There's unfortunately no clean way to do it because requests doesn't want to play along. I think the best we can do is make a bespoke file-like object that intercepts read calls to update the progress bar then delegates the actual read operation to the provided file.