How to temporarily upload pictures in Python _python

Very simple code, record.

Copy Code code as follows:

Import Image
Image = Image.open (' a.jpg ')
Import Cstringio
BUF = Cstringio.stringio ()
Image.Save (buf, image.format,quality=75)
data = Buf.getvalue ()
A = U.writefile ('/this/logo.jpg ', data,true)

Using Django, the user uploads the image to another server after uploading the picture. But the transfer needs to deal with the image, but quality set the save, do not know if it is not image.save (). Write this is saved when put into memory, and then directly submitted to the picture server.