yum 出错，高手请进

sklyk

yum 不能使用，错误信息如下：
Traceback (most recent call last):
  File "/usr/bin/yum", line 29, in ?
    yummain.main(sys.argv[1:])
  File "/usr/share/yum-cli/yummain.py", line 102, in main
    result, resultmsgs = do()
  File "/usr/share/yum-cli/cli.py", line 359, in doCommands
    return self.yum_cli_commands[self.basecmd].doCommand(self, self.basecmd, self.extcmds)
  File "/usr/share/yum-cli/yumcommands.py", line 150, in doCommand
    return base.updatePkgs(extcmds)
  File "/usr/share/yum-cli/cli.py", line 628, in updatePkgs
    self.doRepoSetup()
  File "/usr/share/yum-cli/cli.py", line 102, in doRepoSetup
    yum.YumBase.doRepoSetup(self, thisrepo=thisrepo)
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 299, in doRepoSetup
    repo.setup(self.conf.cache)
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 518, in setup
    self.baseurlSetup()
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 359, in baseurlSetup
    mirrorurls = getMirrorList(self.mirrorlist, self.proxy_dict)
  File "/usr/lib/python2.4/site-packages/yum/yumRepo.py", line 719, in getMirrorList
    content = fo.readlines()
  File "/usr/lib/python2.4/site-packages/urlgrabber/keepalive.py", line 425, in readlines
    line = self.readline()
  File "/usr/lib/python2.4/site-packages/urlgrabber/keepalive.py", line 410, in readline
    new = self._raw_read(self._rbufsize)
  File "/usr/lib/python2.4/httplib.py", line 460, in read
    return self._read_chunked(amt)
  File "/usr/lib/python2.4/httplib.py", line 499, in _read_chunked
    chunk_left = int(line, 16)
ValueError: invalid literal for int():

karon_flame

yum.conf发上来看看吧