yum-metadata-parser 一个用C写的yum仓库解析库，速度比python的要快很多。 研究yum的可看看。 -yum-metadata-parser written in C with a yum warehouse analytic database, speed faster than a lot of python. Research yum can see.

yum is used for linux to download packages automaticalli

RHEL5 YUM不能使用的解决方案，对RHEL5不是正版的朋友该方法有用。-RHEL5 YUM can not use the solution, not genuine friends on RHEL5 usefulness of the method.