1. Mac  下载MySQL

brew update

brew install mysql

2. 安装MySQL-Python

pip install MySQL-Python

3. 启动&关闭MySQL

$ which mysql

mbp:~ tianzhaixing$ which mysql

/usr/local/bin/mysql

mbp:~ tianzhaixing$ cd /usr/local/bin

mbp:bin tianzhaixing$ ./mysqld_safe &

[1] 11985

mbp:bin tianzhaixing$ 151219 10:29:06 mysqld_safe Logging to '/usr/local/var/mysql/mbp.local.err'.

151219 10:29:06 mysqld_safe Starting mysqld daemon with databases from /usr/local/var/mysql

mbp:bin tianzhaixing$ pwd

/usr/local/bin

mbp:bin tianzhaixing$ ./mysqladmin -u root -p shutdown

Enter password:

151219 10:29:36 mysqld_safe mysqld from pid file /usr/local/var/mysql/mbp.local.pid ended

[1]+  Done                    ./mysqld_safe

注意：

> Enter password: 有时候直接回车就可以。如果不行，再输入密码。

> 使用Python 链接MySQL前，要先启动MySQL；

> 使用后，再关闭MySQL。

Q: Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

A: $ mysql.server start

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