Use StartModel with an AWS SDK

The following code example shows how to use StartModel.

For more information, see Starting your model.

Python

SDK for Python (Boto3)

Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

class Hosting:

    @staticmethod
    def start_model(
        lookoutvision_client, project_name, model_version, min_inference_units
    ):
        """
        Starts the hosting of a Lookout for Vision model.

        :param lookoutvision_client: A Boto3 Lookout for Vision client.
        :param project_name:  The name of the project that contains the version of the
                              model that you want to start hosting.
        :param model_version: The version of the model that you want to start hosting.
        :param min_inference_units: The number of inference units to use for hosting.
        """
        try:
            logger.info(
                "Starting model version %s for project %s", model_version, project_name
            )
            lookoutvision_client.start_model(
                ProjectName=project_name,
                ModelVersion=model_version,
                MinInferenceUnits=min_inference_units,
            )
            print("Starting hosting...")

            status = ""
            finished = False

            # Wait until hosted or failed.
            while finished is False:
                model_description = lookoutvision_client.describe_model(
                    ProjectName=project_name, ModelVersion=model_version
                )
                status = model_description["ModelDescription"]["Status"]

                if status == "STARTING_HOSTING":
                    logger.info("Host starting in progress...")
                    time.sleep(10)
                    continue

                if status == "HOSTED":
                    logger.info("Model is hosted and ready for use.")
                    finished = True
                    continue

                logger.info("Model hosting failed and the model can't be used.")
                finished = True

            if status != "HOSTED":
                logger.error("Error hosting model: %s", status)
                raise Exception(f"Error hosting model: {status}")
        except ClientError:
            logger.exception("Couldn't host model.")
            raise

• For API details, see StartModel in AWS SDK for Python (Boto3) API Reference.