From: Giampaolo Rodola' on
On 8 Apr, 07:24, John Nagle <na...(a)> wrote:
> Tim Chase wrote:
> > 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.
>     In theory, the FTP spec supports "three-way transfers", where the
> source, destination, and control can all be on different machines.
> But no modern implementation supports that.
>                                         John Nagle

pyftpdlib supports it:

....but Python's module doesn't.

--- Giampaolo