解决Protected multilib versions: openssl

今天在使用pip的命令时发生了这样的错误，安装pip包的时候没有报错。

 --> 执行事务检查
    ---> Package keyutils-libs.i686 0:1.4-5.el6 will be 安装
    ---> Package libselinux.i686 0:2.0.94-7.el6 will be 安装
    ---> Package libsepol-devel.x86_64 0:2.0.41-4.el6 will be 安装
    ---> Package nss-softokn-freebl.i686 0:3.14.3-23.el6_7 will be 安装
    --> 完成依赖关系计算
    错误： Multilib version problems found. This often means that the root
          cause is something else and multilib version checking is just
          pointing out that there is a problem. Eg.:
          
            1. You have an upgrade for openssl which is missing some
               dependency that another package requires. Yum is trying to
               solve this by installing an older version of openssl of the
               different architecture. If you exclude the bad architecture
               yum will tell you what the root cause is (which package
               requires what). You can try redoing the upgrade with
               --exclude openssl.otherarch ... this should give you an error
               message showing the root cause of the problem.
          
            2. You have multiple architectures of openssl installed, but
               yum can only see an upgrade for one of those arcitectures.
               If you don't want/need both architectures anymore then you
               can remove the one with the missing update and everything
               will work.
          
            3. You have duplicate versions of openssl installed already.
               You can use "yum check" to get yum show these errors.
          
          ...you can also use --setopt=protected_multilib=false to remove
          this checking, however this is almost never the correct thing to
          do as something else is very likely to go wrong (often causing
          much more problems).
          
          Protected multilib versions: openssl-1.0.1e-48.el6.i686 != openssl-1.0.1e-48.el6_8.4.x86_64

上面的意思是 openssl-1.0.1e-48.el6.i686 和 openssl-1.0.1e-48.el6_8.4.x86_64 冲突了

解决如下：

yum downgrade openssl
yum install openssl-devel
# 之后再重新安装一下python就可以了
cd python2.7
./configure
make install

现在 你在执行一下pip --version 命令就可以用了