Matjaz Pfefferer wrote:
What would be the easiest way to copy files from one ftp folder to another without downloading them to local system?
As best I can tell, this isn't well-supported by FTP[1] which doesn't seem to have a native "copy this file from server-location to server-location bypassing the client". There's a pair of RNFR/RNTO commands that allow you to rename (or perhaps move as well) a file which ftplib.FTP.rename() supports but it sounds like you want too copies.
When I've wanted to do this, I've used a non-FTP method, usually SSH'ing into the server and just using "cp". This could work for you if you have pycrypto/paramiko installed.
Your last hope would be that your particular FTP server has some COPY extension that falls outside of RFC parameters -- something that's not a portable solution, but if you're doing a one-off script or something in a controlled environment, could work.
Otherwise, you'll likely be stuck slurping the file down just to send it back up.
-tkc [1] http://en.wikipedia.org/wiki/List_of_FTP_commands -- http://mail.python.org/mailman/listinfo/python-list
