MySQL in PythonAnywhere with Flask-SQLAlchemy extension.py

# MySQL in PythonAnywhere with Flask -SQLAlchemy.py
# A very simple Flask Hello World app for you to get started with...

from flask import Flask
from flask_sqlalchemy import SQLAlchemy
# import MySQLdb

app = Flask(__name__)
app.config["DEBUG"] = True

user, password = '********', '********'
host = '********.mysql.pythonanywhere-services.com'
db = '********$dbFlask' # dbFlask was created as a PythonAnywhere MySQL database

# connection string: mysql://user:pword@host/db
app.config['SQLALCHEMY_DATABASE_URI'] = 'mysql://{0}:{1}@{2}/{3}'.format(user, password, host, db)
db = SQLAlchemy(app)

class User(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(20))
    email = db.Column(db.String(50))

    def __init__(self, username, email):
        self.username = username
        self.email = email

    def __repr__(self):
        return '<User name:%r>' % self.username


@app.route('/')
def hello_world():
    u = User('Fulano', '[email protected]')
    db.session.add(u)
    db.session.commit()
    u = User.query.first()
    return u.username

@app.route('/reload')
def reload():
    db.drop_all()
    db.create_all()
    return 'database (re)created!'

MySQL in PythonAnywhere with Flask-SQLAlchemy extension - A Simple Example

Connection String Format: mysql://user:pword@host/db

SQLALCHEMY_DATABASE_URI
app.config['SQLALCHEMY_DATABASE_URI'] = 'mysql://{0}:{1}@{2}/{3}'.format(user, password, host, db)