What are the meanings of packages, requests, deleting, and updated by the following when yum update error occurs?

"When ""yum update error"", ""package"", ""request"", ""deleting"", and ""updated by the following"" are displayed, what do you mean?"
·Error in package uwsi-plugin-python36u-2.0.17.1-1.ius.el7.x86_64(ius)?
"·I requested ""python36u"", but there was ""python36u-3.6.4-1.ius.centos7.x86_64(@ius)"", so would you like to delete it?"
· Should I end up with python 3-3.6.8-18.el7.x86_64 (updates)? If so, should I type yum install python 3-3.6.8-18.el7.x86_64?

$sudo yum update

-// Abbreviated

-->Dependency resolution terminated.
Error: Package: uwsi-plugin-python36u-2.0.17.1-1.ius.el7.x86_64 (ius)
             Request: uwsi-plugin-common=2.0.17.1
            Deleting: uwsi-plugin-common-2.0.16-1.el7.x86_64 (@epel)
                uwsgi-plugin-common=2.0.16-1.el7
            Updated by: :uwsi-plugin-common-2.0.18-8.el7.x86_64(epel)
                uwsgi-plugin-common=2.0.18-8.el7
Error: Package: uwsi-plugin-python36u-2.0.17.1-1.ius.el7.x86_64 (ius)
             request:python36u
            Deleting: python36u-3.6.4-1.ius.centos7.x86_64 (@ius)
                python36u=3.6.4-1.ius.centos7
            Removed by : python3-3.6.8-18.el7.x86_64 (updates)
                US>Not Found
 You can use --skip-broken to avoid problems.
 You can try these: rpm -Va --nofiles --nodigest

Environment
CentOS Linux release 7.2.1511 (Core)

When I did the following, python was displayed, so I think python is strange.

$sudorpm-Va --nodigest
// Abbreviated
  /usr/lib/python 3.6/site-packages/pip/basecommand.py not found.
  /usr/lib/python 3.6/site-packages/pip/baseparser.py not found.
  /usr/lib/python 3.6/site-packages/pip/cmdoptions.py not found.
  Unable to find /usr/lib/python 3.6/site-packages/pipe/commands.
  /usr/lib/python 3.6/site-packages/pipe/commands/__init__.py not found.
  Unable to find /usr/lib/python 3.6/site-packages/pipe/commands/__pycache__.
// Abbreviated

Currently, we have Python 2.7.5 and Python 3.6.4.

$python-V
Python 2.7.5

$ which python
/usr/bin/python

$ python 3.6 -- version
Python 3.6.4

$ which python 3.6
/usr/bin/python 3.6

centos yum

2023-02-06 10:58

1 Answers

I tried to resolve the dependency while updating the package, but there is a conflict and I can't resolve it.

When conflicts occur, sometimes just "wait for the package to be fixed", but this time I think the following is the problem:

referencing updates, epel,ius and multiple repositories
CentOS updates left unattended

Updates is the official CentOS repository, but be careful when using third-party repositories such as epel,ius, and remi.
It is safer to enable the repository only when necessary, rather than always enabling it.

Python 3.6.4 is probably installed from ius (python36u-3.6.4-1.ius.centos7.x86_64), but updates also have python 3-3.6.8-18.el7.x86_64 distributed, causing conflicts.

Depending on the CentOS 7.2 operational policy you are managing, I think it is easy to understand whether to update to CentOS 7.9 or remove Python 3 via IUS and re-enter the CentOS official Python 3.

reference:

2023-02-06 15:12

If you have any answers or tips

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