tags.py: converted most TagLine functions to module functions

chatmastermind/message.py

@@ -1,26 +0,0 @@
-"""
-Module implementing message related functions and classes.
-"""
-from typing import Type, TypeVar
-
-QuestionInst = TypeVar('QuestionInst', bound='Question')
-
-
-class MessageError(Exception):
-    pass
-
-
-class Question(str):
-    """
-    A single question with a defined prefix.
-    """
-    prefix = '=== QUESTION ==='
-
-    def __new__(cls: Type[QuestionInst], string: str) -> QuestionInst:
-        """
-        Make sure the tag string does not contain the default separator.
-        """
-        if cls.prefix in string:
-            raise MessageError(f"Question '{string}' contains the prefix '{cls.prefix}'")
-        instance = super().__new__(cls, string)
-        return instance

chatmastermind/tags.py

@@ -25,7 +25,7 @@ class Tag(str):
         Make sure the tag string does not contain the default separator.
         """
         if cls.default_separator in string:
-            raise TagError(f"Tag '{string}' contains the separator char '{cls.default_separator}'")
+            raise TypeError(f"Tag '{string}' contains the separator char '{cls.default_separator}'")
         instance = super().__new__(cls, string)
         return instance
 

tests/test_main.py

@@ -240,7 +240,7 @@ class TestTag(CmmTestCase):
         self.assertEqual(tag, 'mytag')
 
     def test_invalid_tag(self) -> None:
-        with self.assertRaises(TagError):
+        with self.assertRaises(TypeError):
             Tag('tag with space')
 
     def test_default_separator(self) -> None: