title: Upload image file to cache on Pyramid
body: <p>I have a python web project based on <a href="https://docs.pylonsproject.org/projects/pyramid/en/1.9-branch/" rel="nofollow noreferrer">Pyramid</a>. I have a confusion in deciding to use which tools I have to use to enable image uploading. I used pyramid_storage(<a href="https://github.com/danjac/pyramid_storage" rel="nofollow noreferrer">https://github.com/danjac/pyramid_storage</a>) to handle the image uploading before, but I haven't figured how to expire the uploaded file.</p>