Simple bittorrent protocol implementation for handle "ut_metadata" extension messages.
Replace info_hash to your own value & enjoy
def print_metadata(metadata):
print metadata
factory = BitTorrentFactory(info_hash=unhexlify('E4DFB9BC728B5554F81CBF97637F7EA5151BF565'),
peer_id=unhexlify('cd2e6673b9f2a21cad1e605fe5fb745b9f7a214d'),
on_metadata_loaded=print_metadata)
reactor.connectTCP("127.0.0.1", 16762, factory)
reactor.run()