Partially Use f string (#10218)

* flynt. trial 1.

* Trial 1.

* Addressed code review.

python/ray/function_manager.py

@@ -272,11 +272,10 @@ class FunctionActorManager:
                     max_calls=0,
                 ))
             self._num_task_executions[job_id][function_id] = 0
-        except Exception:
-            logger.exception("Failed to load function %s.", function_name)
-            raise RuntimeError(
-                "Function {} failed to be loaded from local code.".format(
-                    function_descriptor))
+        except Exception as e:
+            raise RuntimeError(f"Function {function_descriptor} failed "
+                               "to be loaded from local code. "
+                               f"Error message: {str(e)}")
 
     def _wait_for_function(self, function_descriptor, job_id, timeout=10):
         """Wait until the function to be executed is present on this worker.
@@ -445,11 +444,10 @@ class FunctionActorManager:
                 return actor_class.__ray_metadata__.modified_class
             else:
                 return actor_class
-        except Exception:
-            logger.exception("Failed to load actor_class %s.", class_name)
+        except Exception as e:
             raise RuntimeError(
-                "Actor {} failed to be imported from local code.".format(
-                    class_name))
+                f"Actor {class_name} failed to be imported from local code."
+                f"Error Message: {str(e)}")
 
     def _create_fake_actor_class(self, actor_class_name, actor_method_names):
         class TemporaryActor: