1.安装Python3
yum install -y ncurses-libs zlib-devel mysql-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel
下载压缩包Python-3.6.8.tgz
解压后，cd Python-3.6.8
./configure --prefix=/usr/local/python3
make
make install
2.验证
python3 -V
3.由于内网环境，安装 prometheus_client只能下载压缩包
Python prometheus_client项目安装包(第三方库)下载资源&安装指南页面 - PyPI - Python中文网
prometheus_client-0.12.0.tar.gz
执行命令：
pip3 install prometheus_client-0.12.0.tar.gz
