refactor CsstResult

csst_common/status.py

@@ -10,6 +10,7 @@ Modified-History:
     2022-10-07, Bo Zhang, added Numpydoc docstring
 """
 from enum import IntEnum
+from typing import Optional
 
 
 class CsstStatus(IntEnum):
@@ -26,6 +27,7 @@ class CsstStatus(IntEnum):
     >>>         return CsstStatus.PERFECT
     >>>     return CsstStatus.ERROR
     """
+
     PERFECT = 0
     WARNING = 1
     ERROR = 2
@@ -38,17 +40,23 @@ class CsstResult:
     --------
     >>> CsstResult(CsstStatus.PERFECT, ["file1.fits", "file2.fits"])
     """
-    def __init__(self, status: CsstStatus = CsstStatus.ERROR, file_list=[], **additional_output):
+
+    def __init__(
+        self,
+        status: CsstStatus = CsstStatus.ERROR,
+        file_list: Optional = None,
+        **output,
+    ):
+        if file_list is None:
+            file_list = []
         assert isinstance(status, CsstStatus)
         assert type(file_list) is list
         self.status = status
         self.file_list = file_list
-        self.additional_output = additional_output
+        self.output = output
 
     def __repr__(self):
         return f""" <CsstResult status={self.status}>
  - file_list: {self.file_list}
- - addtional_output: {self.additional_output} \n
+ - output: {self.output} \n
 """
-
-