Hello I saw your tutorial on medium and it worked great except for the database setup: sqlalchemy.exc.OperationalError: (pymysql.err.OperationalError) (2003, "Can't connect to MySQL server on 'mysq ...

Summary: frequently I got error: InterfaceError: (2003, "2003: Can't connect to MySQL server on ' [HOST]:3306' (-3 Temporary failure in name resolution)", None). Within few seconds entire system ...

Please: Check that MySQL is running on address localhost. Check that MySQL is reachable on port 3306 (note: 3306 is the default, but this can be changed). Check the user root has rights to connect to ...

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