DataContractModel (deprecated)¶

Deprecated alias

DataContractModel is a deprecated alias for Data. New code should subclass Data. Prefer:

from etlantic import Data

class Customer(Data):
    customer_id: int
    first_name: str
    last_name: str

Importing DataContractModel from etlantic emits a deprecation warning. This page remains for migration context only.

Why the rename¶

ETLantic's preferred public name for a typed dataset contract is Data. Under the hood it remains a thin alias of ContractModel's ContractModel. The older ETLantic-facing name DataContractModel confused the boundary between ContractModel and ETLantic.

Migration¶

Replace from etlantic import DataContractModel with from etlantic import Data.
Replace class X(DataContractModel) with class X(Data).
Load ODCS with load_data_contract(...) and write with write_odcs(...).

See Data Contracts overview, ODCS, and Loading.