Traceback (most recent call last):
  File "/usr/bin/rdiff-backup-statistics", line 446, in <module>
    if __name__ == '__main__': Main()
  File "/usr/bin/rdiff-backup-statistics", line 439, in Main
    else: fst = sum_fst(srp.combined_pairs)
  File "/usr/bin/rdiff-backup-statistics", line 419, in sum_fst
    fst = make_fst(session_rp, filestat_rp)
  File "/usr/bin/rdiff-backup-statistics", line 307, in make_fst
    cutoff_fs = get_cutoff_fs(get_ss_dict())
  File "/usr/bin/rdiff-backup-statistics", line 197, in get_ss_dict
    fileobj = session_rp.open('r', session_rp.isinccompressed())
  File "/var/lib/python-support/python2.5/rdiff_backup/rpath.py", line 1075, in open
    else: return open(self.path, mode)
IOError: [Errno 13] Permission denied: '/media/terabyte/rdiff-backup/rdiff-backup-data/session_statistics.2008-11-01T03:12:23+11:00.data'