安装psycopg2

pip install psycopg2
Collecting psycopg2
  Using cached psycopg2-2.9.3.tar.gz (380 kB)
  Preparing metadata (setup.py) ... done
Building wheels for collected packages: psycopg2
  Building wheel for psycopg2 (setup.py) ... error
  error: subprocess-exited-with-error

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