postgresql选取13.4版本
python分为python2.7与python3.7
psycopg2分为rpm包与tar源码包
一、先安装依赖包
1、安装postgreSQL13
安装步骤
rpm -ivh postgresql13-libs-13.4-1PGDG.rhel7.x86_64.rpm
rpm -ivh postgresql13-13.4-1PGDG.rhel7.x86_64.rpm
rpm -ivh postgresql13-server-13.4-1PGDG.rhel7.x86_64.rpm
rpm -ivh postgresql13-contrib-13.4-1PGDG.rhel7.x86_64.rpm
2、安装postgresql13-devel依赖包
libicu-devel
llvm-toolset-7-clang
llvm5.0-devel
yum -y install libicu-devel
llvm5.0-devel（没有包）
llvm-toolset-7-clang（没有包）
强制安装postgresql13-devel
二、安装psycopg2
1、直接安装rpm包
安装后只有python2.7能用
2、使用tar包安装
1）先安装python3.7
安装编译相关工具包
yum -y groupinstall "Development tools"
yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel yum install libffi-devel -y
下载python3.7
wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tar.xz
tar -xvJf Python-3.7.0.tar.xz
编译安装
mkdir /usr/local/python3 #创建编译安装目录
cd Python-3.7.0
./configure --prefix=/usr/local/python3
make && make install
创建软连接
ln -s /usr/local/python3/bin/python3 /usr/local/bin/python3
ln -s /usr/local/python3/bin/pip3 /usr/local/bin/pip3
2）下载适配 python3.7 的tar包
tar -vzxf psycopg2-2.9.1.tar.gz
cd psycopg2-2.9.1/
安装前，需要配置 pg_config：
vim setup.cfg
配置 pg_config
3）setup.py安装
编译：
python3 setup.py build
安装：
python3 setup.py install
三、验证
import psycopg2
