Count how much .torrents have md5 hashes for files

torrents-md5.py

import os
import fnmatch
import bencode
from bencode import BTL
from pprint import pprint

def findTorrents(*searchDirs):
    for searchDir in searchDirs:
        for root, dirnames, filenames in os.walk(searchDir):
            for filename in fnmatch.filter(filenames, '*.torrent'):
                yield os.path.join(root, filename)

def isHashInInfo(info):
    if 'files' in info.keys():
        for f in info['files']:
            if 'md5sum' in f.keys():
                yield True
            else:
                yield False
    else:
        if 'md5sum' in info.keys():
            yield True
        else:
            yield False
    
def main():
    torrents = 0
    files = 0
    hasMD5 = 0
    noMD5 = 0
    for filename in findTorrents("f:\\downloads", "d:\\downloads"):
        torrent = open(filename, "rb")
        try:
            metainfo = bencode.bdecode(torrent.read())
        except BTL.BTFailure:
            print "Bad file: {}".format(filename)
            continue
        for x in isHashInInfo(metainfo['info']):
            if x:
                hasMD5 += 1
            else:
                noMD5 += 1
            files += 1
        torrents += 1
    
    print "Searched in {} torrents / {} files".format(torrents, files)
    print "has md5: {} / no md5: {}".format(hasMD5, noMD5)
    

if __name__ == "__main__":
    main()