Uploading large files from a stream #120

Hello,

I've been using cloudinary for quite some time and it's been great. Thanks.

Now, I need to be able to upload large files (generated reports) that might go beyond 100 MB. According to docs, I need to use the upload_large. My issue is that I have a stringio object and I couldn't use the upload_large function to upload it to cloudinary (stringio object worked fine with cloudinary.uploader.upload). I'm getting this:
TypeError: coercing to Unicode: need string or buffer, instance found
Looking at the implementation of upload_large, I see that it's invoking open on the file argument which means it expects a filename/path of a file on the file system which is inconsistent compared to cloudinary.uploader.upload.

So, I want to ask:

• Is there a way to use a stream (maybe sth other than stringio) with upload_large ?
• Also, I want to check if there is a constraint that needs the "large" files to be on the file system.

Of course I have no file size issue as the paid cloudinary plan is customized to support uploading up to 200MB per file.

Thank you.