python libtorrent dht distributed hash table

#!/usr/bin/env python
"""
These are the core lines extracted from a live, working torrenter that
uses DHT to avoid a single point of faliure, the torrent server.
Adapt to suit your needs and enjoy.  Please read the docs.

Prerequisites:
	PORT_RANGE must be open for bidirectional TCP and UDP traffic.

	libtorrent needs to be installed.  Something like:
	apt-get install python-libtorrent

	If hosts are on the same local network they should discover each other.
	Otherwise you will have to tell each of the hosts about at least one
	other torrenter.  The distributed hash table will complete the picture.

	References:
	http://www.rasterbar.com/products/libtorrent/manual.html#start-dht-stop-dht-set-dht-settings-dht-state-is-dht-running
	http://www.bittorrent.org/beps/bep_0005.html
	https://github.com/arvidn/libtorrent-daemon/blob/84e486bc737b876ce30cb1491d3f966fe921ec91/main.cpp
	http://stackoverflow.com/questions/1332107/how-does-dht-in-torrents-work
"""
import libtorrent as lt

PORT_RANGE = (6881,6891)  # This is standard but who said that you have to be? :-)
ses = lt.session()
ses.listen_on(PORT_RANGE[0],PORT_RANGE[1])

# Distributed hash:
dht_hosts=[ ('myotherserver',6881), ('myotherotherserver',6881)]
for (host,port) in dht_hosts:
	ses.add_dht_router(host,port)
ses.start_dht()

# Add a torrent:
e = lt.bdecode(open('somefile.torrent', 'rb').read())
info = lt.torrent_info(e)
params = { "save_path":'/home/db/torrents',"storage_mode": lt.storage_mode_t.storage_mode_sparse,"ti":info}
ses.add_torrent(params)

# Chug away:
while True:
	PROCESS FILES