mac psycopg2 安裝失敗
錯誤信息：
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
解決：
mac:
brew install postgresql
LDFLAGS=-L/usr/local/opt/openssl/lib pip3 install psycopg2
centos:
yum install python-devel postgresql-devel
pip3 install psycopg2
ubantu:
python2
sudo apt install libpq-dev python-dev
python3
sudo apt install libpq-dev python3-dev
若還不行
sudo apt install build-essential
要麼
sudo apt install postgresql-server-dev-all
