今天在fedora中，使用下面到语句更新yum：
sudo yum install yum*
发现更新之后无法正常使用 yum。
提示错误大致如下:
File "/usr/lib/python2.6/site-packages/yum/init .py", line 649, in <lambda>
conf = property(fget=lambda self: self._getConfig(),
File "/usr/lib/python2.6/site-packages/yum/init .py", line 237, in _getConfig
startupconf.pluginconfpath,disabled_plugins,enabled_plugins)
File "/usr/lib/python2.6/site-packages/yum/init .py", line 408, in doPluginSetup
plugin_types, confpath, disabled_plugins, enabled_plugins)
File "/usr/lib/python2.6/site-packages/yum/plugins.py", line 162, in init
self.run('config')
File "/usr/lib/python2.6/site-packages/yum/plugins.py", line 179, in run
func(conduitcls(self, self.base, conf, **kwargs))
File "/usr/lib/yum-plugins/tmprepo.py", line 179, in config_hook
parser.values .tmp_repos = []
其实这些错误是由于tmprepo 插件到BUG导致到，你只要卸载这个插件即可，命令如下：
yum remove --disableplugin=tmprepo yum-plugin-tmprepo