Move rTorrent torrent download directories via XMLRPC

main.py

#!/bin/env python3

import logging
import sys
import xmlrpc.client

logging.basicConfig(level=logging.INFO)

def move_all_torrents(server: str, old_prefix: str, new_prefix: str):
    with xmlrpc.client.ServerProxy(server) as proxy:
        for torrent in proxy.download_list():
            directory = proxy.d.directory(torrent)
            if directory.find(old_prefix) != 0:
                logging.warning("Prefix %s doesn't match %s", old_prefix, directory)
                continue
            new_directory = directory.replace(old_prefix, new_prefix)
            logging.info("%s : Moving %s to %s", torrent, directory, new_directory)
            proxy.d.directory_base.set(torrent, new_directory)


if __name__ == "__main__":
    move_all_torrents(
        server=sys.argv[1],
        old_prefix=sys.argv[2],
        new_prefix=sys.argv[3],
    )

Move all torrents from a mount point to another (such as /mnt/source and /mnt/dest) :

python3 main.py http://localhost/RPC2 /mnt/source /mnt/dest