Linux 上安装 mysqlclient

在 Linux 下安装 mysqlclient，如果是选择直接安装的话，一般会报如下错误，

(djenv) handsome@fzq:~$ pip install mysqlclient -i https://pypi.doubanio.com/simple/
Looking in indexes: https://pypi.doubanio.com/simple/
Collecting mysqlclient
  Downloading https://pypi.doubanio.com/packages/ec/fd/83329b9d3e14f7344d1cb31f128e6dbba70c5975c9e57896815dbb1988ad/mysqlclient-1.3.13.tar.gz (90kB)
    100% |████████████████████████████████| 92kB 2.1MB/s 
    Complete output from command python setup.py egg_info:
    /bin/sh: 1: mysql_config: not found
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-install-y16_5477/mysqlclient/setup.py", line 18, in <module>
        metadata, options = get_config()
      File "/tmp/pip-install-y16_5477/mysqlclient/setup_posix.py", line 53, in get_config
        libs = mysql_config("libs_r")
      File "/tmp/pip-install-y16_5477/mysqlclient/setup_posix.py", line 28, in mysql_config
        raise EnvironmentError("%s not found" % (mysql_config.path,))
    OSError: mysql_config not found
    
    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-y16_5477/mysqlclient/

解答方案， 一般来说安装一个依赖即可

(djenv) handsome@fzq:~$ sudo apt install libmysqlclient-dev

安装完依赖之后，再次执行pip install mysqlclient -i https://pypi.doubanio.com/simple/ 即可成功安装