Solution to unsuccessful installation of mysql in Python under Mac

If mysql-python is installed, an error is reported after importing MySQLdb. It is recommended not to use mysql-python. It is not supported after Python 3.6.

I personally use Third-party library pymysql, enter the following code in the terminal to install

sudo pip install pymysql

After installation, if you are using flask_sqlalchemy, please change the driver name to pymysql

SQLALCHEMY_DATABASE_URI = '[数据库名]+[数据库中间件(驱动)]://[用户名]:
[password]@[主机IP地址]:[端口号]/[数据库名字]?charset=utf8'SQLALCHEMY_TRACK_MODIFICATIONS = True

The following is an example of a configuration file used to connect to the database

# -*- coding:utf-8 -*-# config.pyDIALECT = 'mysql'DRIVER = 'pymysql'USERNAME = 'root'PASSWORD = 'root'# HOST = '127.0.0.1'    # 自己电脑的ip 或者localhostHOST = 'localhost'      # 自己电脑的ipPORT = '3306'           # MySQL默认的端口号DATABASE = 'db_demo1'# SQLALCHEMY_DATABASE_URI = '[数据库名]+[数据库中间件(驱动)]://[用户名]:[password]@[主机IP地址]:[端口号]/[数据库名字]?charset=utf8'# SQLALCHEMY_TRACK_MODIFICATIONS = True# 数据库连接必须用这个名字  SQLALCHEMY_DATABASE_URISQLALCHEMY_DATABASE_URI = "{}+{}://{}:{}@{}:{}/{}?charset=utf8".format(DIALECT, DRIVER, USERNAME, PASSWORD, HOST, PORT, DATABASE)

# -*- coding:utf-8 -*-# db_test.pyfrom flask import Flaskfrom flask_sqlalchemy import SQLAlchemyimport config

app = Flask(__name__)
app.config.from_object('config')
db = SQLAlchemy(app)

db.create_all()@app.route('/')def index():
    return 'index'if __name__ == '__main__':
    app.run()

If mysql-python is installed and an error is reported after importing MySQLdb, it is recommended not to use mysql-python. It is not supported after Python 3.6.

I personally use a third-party library pymysql. Enter the following code in the terminal to install

sudo pip install pymysql

After installation, if Using flask_sqlalchemy Please change the driver name to pymysql

SQLALCHEMY_DATABASE_URI = '[数据库名]+[数据库中间件(驱动)]://[用户名]:
[password]@[主机IP地址]:[端口号]/[数据库名字]?charset=utf8'SQLALCHEMY_TRACK_MODIFICATIONS = True

The following is an example of a configuration file used to connect to the database

# -*- coding:utf-8 -*-# config.pyDIALECT = 'mysql'DRIVER = 'pymysql'USERNAME = 'root'PASSWORD = 'root'# HOST = '127.0.0.1'    # 自己电脑的ip 或者localhostHOST = 'localhost'      # 自己电脑的ipPORT = '3306'           # MySQL默认的端口号DATABASE = 'db_demo1'# SQLALCHEMY_DATABASE_URI = '[数据库名]+[数据库中间件(驱动)]://[用户名]:[password]@[主机IP地址]:[端口号]/[数据库名字]?charset=utf8'# SQLALCHEMY_TRACK_MODIFICATIONS = True# 数据库连接必须用这个名字  SQLALCHEMY_DATABASE_URISQLALCHEMY_DATABASE_URI = "{}+{}://{}:{}@{}:{}/{}?charset=utf8".format(DIALECT, DRIVER, USERNAME, PASSWORD, HOST, PORT, DATABASE)

# -*- coding:utf-8 -*-# db_test.pyfrom flask import Flaskfrom flask_sqlalchemy import SQLAlchemyimport config

app = Flask(__name__)
app.config.from_object('config')
db = SQLAlchemy(app)

db.create_all()@app.route('/')def index():
    return 'index'if __name__ == '__main__':
    app.run()

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