Google App Engine, How to make native file object?

Question

I'm trying to convert some data got from urlfetch to native python file object. Does anyone know how to do this?

I understand GAE can't save files to local. But I need file object due to library's specification.

Answer 1

You can use python's StringIO class to wrap a a file-like object around any data retrieved by URL Fetch.

If you use python's urllib2.urlopen() instead of Google's URL Fetch API, you'll get a file-like object which might work with your library.

Answer 2

If you just need a file-like object, you can use urllib2, which on GAE is a wrapper around urlfetch. urlopen returns the file-like object. I don't know of a way you could get a true file handle for a downloaded URL.