Flask-MySQLdb provides MySQL connection for Flask.
First, install Flask-MySQLdb:
$ pip install flask-mysqldb
Flask-MySQLdb depends, and will install for you, recent versions of Flask (0.10.1 or later) and mysqlclient. Flask-MySQLdb is compatible with and tested on Python 2.7, 3.4 and 3.5.
Next, add a MySQL instance to your code:
from flask import Flask
from flask_mysqldb import MySQL
app = Flask(__name__)
mysql = MySQL(app)
@app.route('/')
def users():
cur = mysql.connection.cursor()
cur.execute('''SELECT user, host FROM mysql.user''')
rv = cur.fetchall()
return str(rv)
if __name__ == '__main__':
app.run(debug=True)