ubuntu 安装mysql，postgresql， mongodb

安装mysql

sudo apt-get install python-dev libpython-dev libpq-dev
sudp apt-get install libevent-dev libmysqlclient-dev
sudo apt-get install mysql-client
sudo apt-get install mysqlclient==1.3.6

安装postgresql

sudo add-apt-repository "deb http://apt.postgresql.org/pub/repos/apt/ xenial-pgdg main"
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
sudo apt-get update
sudo apt-get install postgresql-9.

安装mongodb

sudo apt-get install mongodb