Normalize type formatting in TypeError

Normalize most mixed usages of `__class__`, `__class__!r`, 
`__class__.__name__!r` to the standard form of 
`__class__.__name__`

discord/app_commands/commands.py

@@ -1850,7 +1850,7 @@ class Group:
         """
 
         if not isinstance(command, (Command, Group)):
-            raise TypeError(f'expected Command or Group not {command.__class__!r}')
+            raise TypeError(f'expected Command or Group not {command.__class__.__name__}')
 
         if isinstance(command, Group) and self.parent is not None:
             # In a tree like so:

discord/app_commands/models.py

@@ -468,7 +468,7 @@ class Choice(Generic[ChoiceT]):
             return AppCommandOptionType.string
         else:
             raise TypeError(
-                f'invalid Choice value type given, expected int, str, or float but received {self.value.__class__!r}'
+                f'invalid Choice value type given, expected int, str, or float but received {self.value.__class__.__name__}'
             )
 
     async def get_translated_payload(self, translator: Translator) -> Dict[str, Any]:

discord/app_commands/transformers.py

@@ -528,7 +528,7 @@ else:
 
         def __class_getitem__(cls, items) -> _TransformMetadata:
             if not isinstance(items, tuple):
-                raise TypeError(f'expected tuple for arguments, received {items.__class__!r} instead')
+                raise TypeError(f'expected tuple for arguments, received {items.__class__.__name__} instead')
 
             if len(items) != 2:
                 raise TypeError(f'Transform only accepts exactly two arguments')
@@ -540,7 +540,7 @@ else:
                     raise TypeError(f'second argument of Transform must be a Transformer class not {transformer!r}')
                 transformer = transformer()
             elif not isinstance(transformer, Transformer):
-                raise TypeError(f'second argument of Transform must be a Transformer not {transformer.__class__!r}')
+                raise TypeError(f'second argument of Transform must be a Transformer not {transformer.__class__.__name__}')
 
             return transformer
 
@@ -571,7 +571,7 @@ else:
 
         def __class_getitem__(cls, obj) -> _TransformMetadata:
             if not isinstance(obj, tuple):
-                raise TypeError(f'expected tuple for arguments, received {obj.__class__!r} instead')
+                raise TypeError(f'expected tuple for arguments, received {obj.__class__.__name__} instead')
 
             if len(obj) == 2:
                 obj = (*obj, None)

discord/app_commands/tree.py

@@ -346,7 +346,7 @@ class CommandTree(Generic[ClientT]):
                 self._context_menus.update(current)
             return
         elif not isinstance(command, (Command, Group)):
-            raise TypeError(f'Expected an application command, received {command.__class__!r} instead')
+            raise TypeError(f'Expected an application command, received {command.__class__.__name__} instead')
 
         # todo: validate application command groups having children (required)
 
@@ -1002,7 +1002,7 @@ class CommandTree(Generic[ClientT]):
         """
 
         if translator is not None and not isinstance(translator, Translator):
-            raise TypeError(f'expected None or Translator instance, received {translator.__class__!r} instead')
+            raise TypeError(f'expected None or Translator instance, received {translator.__class__.__name__} instead')
 
         old_translator = self._state._translator
         if old_translator is not None: