下载安装包:

https://www.python.org/downloads/source/
wget https://www.python.org/ftp/python/3.9.11/Python-3.9.11.tgz

解压安装:

yum install gcc-c++ -y
tar -xf Python-3.9.11.tgz
./configure prefix=/usr/local/python3
make
make install

创建软连接:

ln -sv /usr/local/python3/bin/python3.9 /usr/bin/python
ln -sv /usr/local/python3/bin/pip3.8 /usr/bin/pip

把yum用的python改回2.7

vim /usr/bin/yum
#!/usr/bin/python2.7

vim /usr/libexec/urlgrabber-ext-down
#!/usr/bin/python2.7

vim /usr/bin/yum-config-manager
#!/usr/bin/python2.7

配置pip源:

cat >> /root/.config/pip/pip.conf <<EOF
[global]
index-url = http://mirrors.aliyun.com/pypi/simple/
 
[install]
trusted-host = mirrors.aliyun.com
EOF