Simon Faulkner:
>Can the zipfile module only write to a file system?
It can write to any file-like object.
"class ZipFile(file[, mode[, compression]])
Open a ZIP file, where file can be either a path to a file
(a string) or a file-like object."
http://www.python.org/doc/current/lib/zipfile-objects.html
--
René Pijlman