Forums

 class Config(object):
     ...

     SQLALCHEMY_DATABASE_URI = "mysql+mysqlconnector://{username}:{password}@{hostname}/{databasename}?charset=utf8".format(
        username="<my_username>",
        password="<my_password",
        hostname="<my_username>.mysql.pythonanywhere-services.com",
        databasename="<my_username>$my_new_database")

     SQLALCHEMY_TRACK_MODIFICATIONS = False

config = Config()

app = Flask(__name__)
app.config.from_object(config)

Error running WSGI application
2023-05-11 14:18:32,690: sqlalchemy.exc.DatabaseError: (mysql.connector.errors.DatabaseError) 2003 
    (HY000): Can't connect to MySQL server on 'localhost:3306' (111)
2023-05-11 14:18:32,690: (Background on this error at: https://sqlalche.me/e/20/4xp6)