django安装mysql驱动

django目前支持三种mysql驱动来进行mysql的链接

• MySQLdb is a native driver that has been developed and supported for over
  a decade by Andy Dustman.

• mysqlclient is a fork of MySQLdb which notably supports Python 3 and
  can be used as a drop-in replacement for MySQLdb. At the time of this writing,
  this is the recommended choice for using MySQL with Django.

• MySQL Connector/Python is a pure Python driver from Oracle that does not
  require the MySQL client library or any Python modules outside the standard
  library.

mysqldb 目前不支持python3+，推荐使用mysqlclient

尝试了在pycharm上直接安装mysqlclient，报以下错误：OSError: mysql_config not found

在git上查阅安装步骤：

Prerequisites

You may need to install the Python and MySQL development headers and libraries like so:

sudo apt-get install python-dev libmysqlclient-dev # Debian / Ubuntu

sudo yum install python-devel mysql-devel # Red Hat / CentOS

On Windows, there are binary wheel you can install without MySQLConnector/C or MSVC.

Note on Python 3 : if you are using python3 then you need to install python3-dev using the following command :

sudo apt-get install python3-dev # debian / Ubuntu

sudo yum install python3-devel # Red Hat / CentOS

brew install mysql-connector-c # macOS (Homebrew)

Install from PyPI

pip install mysqlclient

因为我在mac上，使用的python3，故先执行命令：

brew install mysql-connector-c 

然后再执行：

pip3 install mysqlclient

报如下错误：

Command “python setup.py egg_info” failed with error code 1 in /private/tmp/pip-build-m9v70gan/mysqlclient/

这个地方有点疑惑：使用pip3命令后，最终调用的是python，而不是python3

查看mysqlclient的源代码，发现根本原因还是因为没找到mysql_config，明白过来需要安装mysql，才能正常安装mysqlclient

Installed /Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/mysqlclient-1.3.10-py3.6-macosx-10.6-intel.egg

Processing dependencies for mysqlclient==1.3.10

Finished processing dependencies for mysqlclient==1.3.10