pip安装依赖提示mysql_config command not found

在CentOS7使用pip安装Python依赖时，遇到了错误提示：mysql_config command not found，再次记录下解决方法。

错误再现

1	bin/pip3 install -r requirements.txt

安装依赖时，提示了如下错误：

 Downloading https://files.pythonhosted.org/packages/3c/df/59cd2fa5e48d0804d213bdcb1acb4d08c403b61c7ff7ed4dd4a6a2deb3f7/mysqlclient-2.0.3.tar.gz (88kB)
    100% |████████████████████████████████| 92kB 613kB/s 
    Complete output from command python setup.py egg_info:
    /bin/sh: mysql_config: command not found
    /bin/sh: mariadb_config: command not found
    /bin/sh: mysql_config: command not found
    mysql_config --version
    mariadb_config --version
    mysql_config --libs
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-install-lg7msz4s/mysqlclient/setup.py", line 15, in <module>
        metadata, options = get_config()
      File "/tmp/pip-install-lg7msz4s/mysqlclient/setup_posix.py", line 70, in get_config
        libs = mysql_config("libs")
      File "/tmp/pip-install-lg7msz4s/mysqlclient/setup_posix.py", line 31, in mysql_config
        raise OSError("{} not found".format(_mysql_config_path))
    OSError: mysql_config not found
    
    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-lg7msz4s/mysqlclient/

解决方案

看样子是mysql的依赖没有安装，可以使用yum安装，但搜到的都是libmysqlclient-dev，很显然木有这个包：

yum install libmysqlclient-dev
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirrors.bfsu.edu.cn
 * extras: mirrors.bfsu.edu.cn
 * updates: mirrors.bfsu.edu.cn
No package libmysqlclient-dev available.
Error: Nothing to do

实际上应该是mariadb-devel，因为centos7以及不默认安装mysql了。