安装，新型的 .egg 模式:

Note: you can attempt this installation again with EasyInstall, and use 
either the --delete-conflicting (-D) option or the
--ignore-conflicts-at-my-risk option, to either delete the above files
and directories, or to ignore the conflicts, respectively.  Note that if
you ignore the conflicts, the installed package(s) may not work.
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不过，若有相关模块安装过………………就要error -- ZoomQuiet