#!/usr/bin/env python# The contents of this file are subject to the BitTorrent Open Source License# Version 1.0 (the License).  You may not copy or use this file, in either# source code or executable form, except in compliance with the License.  You# may obtain a copy of the License at http://www.bittorrent.com/license/.## Software distributed under the License is distributed on an AS IS basis,# WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the License# for the specific language governing rights and limitations under the# License.# Written by Henry 'Pi' James and Bram Cohenfrom sys import argvfrom BitTorrent.bencode import bencode, bdecodeif len(argv) < 3:    print '%s http://new.uri:port/announce file1.torrent file2.torrent' % argv[0]    print    exit(2) # common exit code for syntax errorfor f in argv[2:]:    h = open(f, 'rb')    metainfo = bdecode(h.read())    h.close()    if metainfo['announce'] != argv[1]:        print 'old announce for %s: %s' % (f, metainfo['announce'])        metainfo['announce'] = argv[1]        h = open(f, 'wb')        h.write(bencode(metainfo))        h.close()