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sqlalchemy.exc.OperationalError - Can't connect to local MySQL

I am trying to use sqlachemy with bind because I have more than one database. If I go to the bash and execute the command to create tables, it generates the following error:

sqlalchemy.exc.OperationalError: (MySQLdb._exceptions.OperationalError) (2002, "Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)") (Background on this error at: http://sqlalche.me/e/13/e3q8) During handling of the above exception, another exception occurred:

I tried this sqlachemy:

app.config['SQLALCHEMY_DATABASE_URI'] = f'mysql://<username>:<password>@<username>.mysql.pythonanywhere-services.com/firstdb' app.config['SQLALCHEMY_BINDS'] = { 'variable1': f'mysql://<username>:<password>@<username>.mysql.pythonanywhere-services.com/seconddb', 'variable2': f'mysql://<username>:<password>@<username>.mysql.pythonanywhere-services.com/thirddb', 'variable3': f'mysql://<username>:<password>@<username>.mysql.pythonanywhere-services.com/fourthdb' }

I also tried:

    app.config['SQLALCHEMY_DATABASE_URI'] = db.database(dbn = 'mysql', db = '<username>$firstdb', user = '<username>', pw = '<password>', host='<username>.mysql.pythonanywhere-services.com', port=3306)
    app.config['SQLALCHEMY_BINDS'] = {

        'sbecfrenchhigh': db.database(dbn = 'mysql', db = '<username>$seconddb', user = '<username>', pw = '<password>', host='<username>.mysql.pythonanywhere-services.com', port=3306),
        'sbechigharabic': db.database(dbn = 'mysql', db = '<username>$thirddb', user = '<username>', pw = '<password>', host='<username>.mysql.pythonanywhere-services.com', port=3306),
        'sbecjunior': db.database(dbn = 'mysql', db = '<username>$fourthdb', user = '<username>', pw = '<password>', host='<username>.mysql.pythonanywhere-services.com', port=3306)
    }

but they all failed with the error mentioned above.

from the bath terminal, here is the code I issued:

from myapp import db, create_app db.create_all(app=create_app())

this is because I am using the create_app() function

I have all modules installed but no matter what I do, it does not connect to MySQL. Any help will be highly appreciate. thanks

Are you sure that your username, password and database name is correct and it matches what you see on the "Database" page?