python安装psycopg2

直接运行

pip install psycopg2 -i https://pypi.tuna.tsinghua.edu.cn/simple

报错pg_config executable not found

先

pip install libpq-dev -i https://pypi.tuna.tsinghua.edu.cn/simple

再

pip install gcc -i https://pypi.tuna.tsinghua.edu.cn/simple

最后`

pip install psycopg2 -i https://pypi.tuna.tsinghua.edu.cn/simple

成功