yum update (python)

yum update

Traceback (most recent call last):
File "/usr/bin/yum", line 29, in <module>
    yummain.user_main(sys.argv[1:], exit_code=True)
File "/usr/share/yum-cli/yummain.py", line 375, in user_main
    errcode = main(args)
File "/usr/share/yum-cli/yummain.py", line 239, in main
    (result, resultmsgs) = base.buildTransaction()
File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 1198, in buildTransaction
    (rescode, restring) = self.resolveDeps()
File "/usr/lib/python2.7/site-packages/yum/depsolve.py", line 893, in resolveDeps
    CheckDeps, checkinstalls, checkremoves, missing = self._resolveRequires(errors)
File "/usr/lib/python2.7/site-packages/yum/depsolve.py", line 1025, in _resolveRequires
    (checkdep, missing, errormsgs) = self._processReq(po, dep)
File "/usr/lib/python2.7/site-packages/yum/depsolve.py", line 350, in _processReq
    CheckDeps, missingdep = self._requiringFromTransaction(po, requirement, errormsgs)
File "/usr/lib/python2.7/site-packages/yum/depsolve.py", line 680, in _requiringFromTransaction
    rel=pkg.rel)
File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 5280, in update
    availpkgs = self._compare_providers(availpkgs, requiringPo)
File "/usr/lib/python2.7/site-packages/yum/depsolve.py", line 1648, in _compare_providers
    bestnum = max(pkgresults.values())
ValueError: max() arg is an empty sequence

ln -s /usr/bin/python2.7 /usr/bin/python

---> 软件包 nvidia-container-runtime.x86_64.0.2.0.0-1.docker18.09.0 将被升级
---> 软件包 nvidia-container-runtime.x86_64.0.3.3.0-1 将被更新
---> 软件包 nvidia-container-runtime-hook.x86_64.0.1.4.0-2 将被取代
---> 软件包 nvidia-container-toolkit.x86_64.0.1.2.1-2 将被舍弃
---> 软件包 nvidia-detect.x86_64.0.410.78-1.el7.elrepo 将被升级
---> 软件包 nvidia-detect.x86_64.0.440.64-1.el7.elrepo 将被更新
---> 软件包 nvidia-docker2.noarch.0.2.0.3-1.docker18.09.0.ce 将被升级
---> 软件包 nvidia-docker2.noarch.0.2.4.0-1 将被更新
---> 软件包 nvidia-x11-drv-390xx.x86_64.0.390.87-1.el7_5.elrepo 将被升级
--> 正在处理依赖关系 libGLdispatch.so.0()(64bit)，它被软件包 1:libglvnd-glx-1.0.1-0.8.git5baa1e5.el7.x86_64 需要
--> 正在处理依赖关系 libGLdispatch.so.0()(64bit)，它被软件包 1:libglvnd-egl-1.0.1-0.8.git5baa1e5.el7.x86_64 需要
--> 正在处理依赖关系 libGLdispatch.so.0()(64bit)，它被软件包 1:libglvnd-gles-1.0.1-0.8.git5baa1e5.el7.x86_64 需要
--> 正在处理依赖关系 libnvidia-ml.so.1()(64bit)，它被软件包 nvidia-x11-drv-390xx-390.138-1.el7_8.elrepo.x86_64 需要
Traceback (most recent call last):
File "/usr/bin/yum", line 29, in <module>
    yummain.user_main(sys.argv[1:], exit_code=True)
File "/usr/share/yum-cli/yummain.py", line 375, in user_main
    errcode = main(args)
File "/usr/share/yum-cli/yummain.py", line 239, in main
    (result, resultmsgs) = base.buildTransaction()
File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 1198, in buildTransaction
    (rescode, restring) = self.resolveDeps()
File "/usr/lib/python2.7/site-packages/yum/depsolve.py", line 893, in resolveDeps
    CheckDeps, checkinstalls, checkremoves, missing = self._resolveRequires(errors)
File "/usr/lib/python2.7/site-packages/yum/depsolve.py", line 1025, in _resolveRequires
    (checkdep, missing, errormsgs) = self._processReq(po, dep)
File "/usr/lib/python2.7/site-packages/yum/depsolve.py", line 350, in _processReq
    CheckDeps, missingdep = self._requiringFromTransaction(po, requirement, errormsgs)
File "/usr/lib/python2.7/site-packages/yum/depsolve.py", line 680, in _requiringFromTransaction
    rel=pkg.rel)
File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 5280, in update
    availpkgs = self._compare_providers(availpkgs, requiringPo)
File "/usr/lib/python2.7/site-packages/yum/depsolve.py", line 1648, in _compare_providers
    bestnum = max(pkgresults.values())
ValueError: max() arg is an empty sequence

https://danieleriksson.net/2017/02/08/how-to-install-latest-python-on-centos/

Use “make altinstall” to prevent problems

It is critical that you use make altinstall when you install your custom version of Python. If you use the normal make install you will end up with two different versions of Python in the filesystem both named python. This can lead to problems that are very hard to diagnose.

# Python 3.8.5:

wget http://python.org/ftp/python/3.8.5/Python-3.8.5.tar.xz

tar xf Python-3.8.5.tar.xz

cd Python-3.8.5

./configure --prefix=/usr/local --enable-shared LDFLAGS="-Wl,-rpath /usr/local/lib"

make && make altinstall

# pwd
/usr/local/bin
# ls py*
pydoc3 pydoc3.8 python3.8 python3.8-config
/usr/local/bin/python3.8

# /usr/local/bin/python3.8
Python 3.8.5 (default, Sep 4 2020, 19:48:39)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-39)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import cytpes
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'cytpes'
>>> exit()

# python3.8
Python 3.8.5 (default, Sep 4 2020, 19:48:39)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-39)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import cyptes
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'cyptes'

wget https://bootstrap.pypa.io/get-pip.py

python3.8 get-pip.py

# yum install libffi-devel
已加载插件：fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: mirror.lzu.edu.cn
* elrepo: mirrors.tuna.tsinghua.edu.cn
* epel: my.mirrors.thegigabit.com
* extras: mirror.lzu.edu.cn
* updates: mirror.lzu.edu.cn
软件包 libffi-devel-3.0.13-19.el7.x86_64 已安装并且是最新版本
无须任何处理

REF

https://pure-defect.com/2019/06/patching-centos-7-and-overcoming-problems/