Mac Python Flask-MySQLdb install

Flask-MySQLdb 安装错误日志

(venv) Dragon:apidemo dragon$ pip install Flask-MySQLdb
Looking in indexes: http://mirrors.aliyun.com/pypi/simple/
Collecting Flask-MySQLdb
  Downloading http://mirrors.aliyun.com/pypi/packages/62/e3/955c845efe1aacf30c8e2607470544ede36aa1044f6382c809f13e014104/Flask-MySQLdb-0.2.0.tar.gz
Requirement already satisfied: Flask>=0.10 in ./venv/lib/python3.7/site-packages (from Flask-MySQLdb) (1.1.1)
Collecting mysqlclient (from Flask-MySQLdb)
  Downloading http://mirrors.aliyun.com/pypi/packages/4d/38/c5f8bac9c50f3042c8f05615f84206f77f03db79781db841898fde1bb284/mysqlclient-1.4.4.tar.gz (86kB)
    100% |████████████████████████████████| 92kB 1.9MB/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
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/private/var/folders/2r/217lvp116q92t8ff28xptzg00000gn/T/pip-install-_gax0qiq/mysqlclient/setup.py", line 16, in <module>
        metadata, options = get_config()
      File "/private/var/folders/2r/217lvp116q92t8ff28xptzg00000gn/T/pip-install-_gax0qiq/mysqlclient/setup_posix.py", line 61, in get_config
        libs = mysql_config("libs")
      File "/private/var/folders/2r/217lvp116q92t8ff28xptzg00000gn/T/pip-install-_gax0qiq/mysqlclient/setup_posix.py", line 29, 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 /private/var/folders/2r/217lvp116q92t8ff28xptzg00000gn/T/pip-install-_gax0qiq/mysqlclient/

分析
找不到mysql_config一般是由于通过lnmp.org或者其他方式安装mysql以后mysql_config是在/usr/local/mysql/bin/里面，这里面的文件不是在任意位置都可以访问的

解决方法

 ln -s /usr/local/mysql/bin/mysql_config /usr/local/bin/mysql_config