Hyperparameters are json encoded at the end of setting up training config.

Author: Christian Osendorfer

src/sagemaker/estimator.py

@@ -686,7 +686,7 @@ def _script_mode_hyperparam_update(self, code_dir: str, script: str) -> None:
         hyperparams[JOB_NAME_PARAM_NAME] = self._current_job_name
         hyperparams[SAGEMAKER_REGION_PARAM_NAME] = self.sagemaker_session.boto_region_name
 
-        self._hyperparameters.update(EstimatorBase._json_encode_hyperparameters(hyperparams))
+        self._hyperparameters.update(hyperparams)
 
     def _stage_user_code_in_s3(self) -> str:
         """Uploads the user training script to S3 and returns the S3 URI.