title: Delete an uploaded file after downloading it from Flask
body: <p>I am currently working on a small web interface which allows different users to upload files, convert the files they have uploaded, and download the converted files. The details of the conversion are not important for my question.</p>
  
  <p>I am currently using flask-uploads to manage the uploaded files, and I am storing them in the file system. Once a user uploads and converts a file, there are all sorts of pretty buttons to delete the file, so that the uploads folder doesn't fill up.</p>
  
  <p>I don't think this is ideal. What I really want is for the files to be deleted right after they are downloaded. I would settle for the files being deleted when the session ends.</p>
  
  <p>I've spent some time trying to figure out how to do this, but I have yet to succeed. It doesn't seem like an uncommon problem, so I figure there must be some solution out there that I am missing. Does anyone have a solution?</p>