bugfix: special_values

entitys/data_process_config_entity.py

@@ -136,14 +136,14 @@ class DataProcessConfigEntity():
 
     def get_special_values(self, column: str = None):
         if self._special_values is None or len(self._special_values) == 0:
-            return None
+            return []
         if isinstance(self._special_values, str):
             return [self._special_values]
-        if column is None or isinstance(self._special_values, list):
+        if isinstance(self._special_values, list):
             return self._special_values
         if isinstance(self._special_values, dict) and column is not None:
-            return self._special_values.get(column, None)
-        return None
+            return self._special_values.get(column, [])
+        return []
 
     def f_get_save_path(self, file_name: str) -> str:
         path = os.path.join(self._base_dir, file_name)