update comments

Author: bxdd

qlib/data/dataset/handler.py

@@ -125,8 +125,7 @@ def config(self, **kwargs):
 
     def setup_data(self, enable_cache: bool = False):
         """
-        Set Up the data.
-        In case of running intialization for multiple time, it will do nothing for the second time.
+        Set Up the data in case of running intialization for multiple time
 
         It is responsible for maintaining following variable
         1) self._data
@@ -431,7 +430,7 @@ def config(self, processor_kwargs: dict = None, **kwargs):
 
     def setup_data(self, init_type: str = IT_FIT_SEQ, **kwargs):
         """
-        Set up the data of Qlib
+        Set up the data in case of running intialization for multiple time
 
         Parameters
         ----------

qlib/data/dataset/processor.py

@@ -75,7 +75,7 @@ def is_for_infer(self) -> bool:
     def config(self, **kwargs):
         attr_list = {"fit_start_time", "fit_end_time"}
         for k, v in kwargs.items():
-            if k in attr_list and getattr(self, k, None) is not None:
+            if k in attr_list and hasattr(self, k):
                 setattr(self, k, v)
 
         for attr in attr_list: