如何使用具有冲突的python版本的CentOS安装YUM？

Question

我一直在互联网上搜索关于在CentOS上安装yum的说明。我还没有找到一个有用的来源，因为所有的链接到yum软件包都不起作用。

为什么没有一种简单的通用方法来安装yum，比如使用pip安装python库？

这是我在CentOS机器上键入yum时遇到的错误：

There was a problem importing one of the Python modules
required to run yum. The error leading to this problem was:

No module named yum

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:
2.7.14 |Anaconda, Inc.| (default, Mar 27 2018, 17:29:31)
[GCC 7.2.0]

机器规格：

LSB Version:    :core-4.1-amd64:core-4.1-noarch
Distributor ID: CentOS
Description:    CentOS Linux release 7.4.1708 (Core)
Release:    7.4.1708
Codename:   Core

我有两个版本的python：

1. /usr/bin/python -> python2.7
2. which python的输出为/anaconda/envs/py35/bin/python

我的系统似乎混淆了两个python版本。

当yum返回时，/usr/bin/中有ls /usr/bin/ | grep yum：

yum
yum-builddep
yum-config-manager
yum-debug-dump
yum-debug-restore
yumdownloader
yum-groups-manager

当我试图使用yum-3.4.3-158.el7.centos.noarch.rpm使用rpm -i安装yum时，会得到很多相互矛盾的错误：

file /usr/lib/python2.7/site-packages/rpmUtils/__init__.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/__init__.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/rpmUtils/arch.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/rpmUtils/miscutils.py from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/rpmUtils/miscutils.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/rpmUtils/oldUtils.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/rpmUtils/transaction.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/rpmUtils/updates.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/Errors.py from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/Errors.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/callbacks.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/comps.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/config.py from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/config.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/constants.py from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/constants.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/depsolve.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/drpm.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/failover.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/fssnapshots.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/history.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/i18n.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/igroups.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/logginglevels.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/mdparser.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/metalink.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/misc.py from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/misc.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/packageSack.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/packages.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/parser.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/pgpmsg.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/pkgtag_db.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/plugins.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/repoMDObject.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/repos.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/rpmsack.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/rpmtrans.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/sqlitesack.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/sqlutils.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/transactioninfo.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/update_md.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/updateinfo.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/yumRepo.py from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/lib/python2.7/site-packages/yum/yumRepo.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/share/yum-cli/yummain.py from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/share/man/man5/yum.conf.5 from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/share/man/man8/yum-shell.8 from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/share/man/man8/yum.8 from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/share/yum-cli/callback.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/share/yum-cli/cli.py from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/share/yum-cli/cli.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/share/yum-cli/output.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/share/yum-cli/shell.py from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/share/yum-cli/shell.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/share/yum-cli/utils.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/share/yum-cli/yumcommands.py from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/share/yum-cli/yumcommands.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch
file /usr/share/yum-cli/yummain.pyc from install of yum-3.4.3-158.el7.centos.noarch conflicts with file from package yum-3.4.3-154.el7.centos.noarch

我尝试从yum、/usr/lib/python2.7/site-packages和/usr/share/中删除所有相关文件夹，以便使用上面的命令重新安装，但是会产生相同的错误。

Answer 1

百胜是CentOS的核心部分，我认为不安装它是不可能的。