move delayed and wrap_non_picklable_objects from hyperopt to hyperopt_optimizer

freqtrade/optimize/hyperopt/hyperopt.py

@@ -14,7 +14,7 @@ from pathlib import Path
 from typing import Any
 
 import rapidjson
-from joblib import Parallel, cpu_count, delayed, wrap_non_picklable_objects
+from joblib import Parallel, cpu_count
 
 from freqtrade.constants import FTHYPT_FILEVERSION, LAST_BT_RESULT_FN, Config
 from freqtrade.enums import HyperoptState
@@ -160,9 +160,7 @@ class Hyperopt:
 
             return self.hyperopter.generate_optimizer(*args, **kwargs)
 
-        return parallel(
-            delayed(wrap_non_picklable_objects(optimizer_wrapper))(v) for v in asked
-        )
+        return parallel(optimizer_wrapper(v) for v in asked)
 
     def _set_random_state(self, random_state: int | None) -> int:
         return random_state or random.randint(1, 2**16 - 1)  # noqa: S311

freqtrade/optimize/hyperopt/hyperopt_optimizer.py

@@ -11,7 +11,7 @@ from pathlib import Path
 from typing import Any
 
 import optuna
-from joblib import dump, load
+from joblib import dump, load, delayed, wrap_non_picklable_objects
 from joblib.externals import cloudpickle
 from optuna.exceptions import ExperimentalWarning
 from pandas import DataFrame
@@ -260,6 +260,8 @@ class HyperOptimizer:
                 # noinspection PyProtectedMember
                 attr.value = params_dict[attr_name]
 
+    @delayed
+    @wrap_non_picklable_objects
     def generate_optimizer(self, raw_params: dict[str, Any]) -> dict[str, Any]:
         """
         Used Optimize function.