昨天准备安装python3，有一些前置依赖的版本冲突了

当时一抽筋了，删除了sqlite这个rpm包，导致rpm、yum工具都不能用了{{{(>_<)}}}

[root@k8s-master01 ~]# rpm -qa sqlite
sqlite-3.7.17-8.el7.x86_64

模拟误删除

rpm -e sqlite --nodeps

然后完犊子了

[root@k8s-master01 ~]# rpm -qa sqlite
错误：Failed to initialize NSS library


[root@k8s-master01 ~]# yum list
error: Failed to initialize NSS library
There was a problem importing one of the Python modules
required to run yum. The error leading to this problem was:

   cannot import name ts

Please install a package which provides this module, or
verify that the module is installed correctly.

It's possible that the above module doesn't match the
current version of Python, which is:
2.7.5 (default, Oct 30 2018, 23:45:53) 
[GCC 4.8.5 20150623 (Red Hat 4.8.5-36)]

If you cannot solve this problem yourself, please go to 
the yum faq at:
  http://yum.baseurl.org/wiki/Faq

解决方法

# 下载软件包
wget -c http://archives.fedoraproject.org/pub/archive/fedora/linux/updates/23/x86_64/s/sqlite-3.11.0-3.fc23.x86_64.rpm
wget -c http://archives.fedoraproject.org/pub/archive/fedora/linux/updates/23/x86_64/s/sqlite-libs-3.11.0-3.fc23.x86_64.rpm

#后续链接可能失效,下面提供找包的地址
#https://pkgs.org/


# 解压
rpm2cpio sqlite-3.11.0-3.fc23.x86_64.rpm | cpio -idmv
rpm2cpio sqlite-libs-3.11.0-3.fc23.x86_64.rpm | cpio -idmv


#这里会解压出来一个usr的目录
[root@k8s-master01 usr]# ls
bin  lib64  share


#拷贝文件
cp usr/bin/sqlite3  /usr/bin/
cp usr/lib64/* /usr/lib64/