Akousasqlalchemy.exc.OperationalErrorA database operation failed due to a connection or database-level error.
The database server is unreachable, the credentials are wrong, the database does not exist, or a connection pool timeout occurred. This can also happen when the SQL is valid but the database cannot execute it (e.g., locked table).
Verify database connection settings (host, port, credentials, database name). Check the database server is running. Handle connection pool exhaustion with proper pool configuration. Implement retry logic for transient errors.
AttributeErrorAn object does not have the requested attribute or method.
OSErrorA system-level error occurred during an I/O operation.
TypeErrorAn operation or function was applied to an object of an inappropriate type.
DeprecationWarningA warning about a deprecated feature that will be removed in a future version.
numpy ValueError: shape mismatchA numpy operation failed because the array shapes are incompatible.
OverflowErrorThe result of an arithmetic operation is too large to be represented.