class pack_file(object):

def __init__(self, filename, mode = 'rb'):

assert mode in ('r', 'rb')

if not pack.Exist(filename):

raise IOError, 'No file or directory'

self.data = pack.Get(filename)

if mode == 'r':

self.data=_chr(10).join(self.data.split(_chr(13)+_chr(10)))