Refactor certain f-strings and literals

discord/ext/commands/flags.py

@@ -320,9 +320,9 @@ class FlagsMeta(type):
             aliases = {key.casefold(): value.casefold() for key, value in aliases.items()}
             regex_flags = re.IGNORECASE
 
-        keys = list(re.escape(k) for k in flags)
+        keys = [re.escape(k) for k in flags]
         keys.extend(re.escape(a) for a in aliases)
-        keys = sorted(keys, key=lambda t: len(t), reverse=True)
+        keys = sorted(keys, key=len, reverse=True)
 
         joined = '|'.join(keys)
         pattern = re.compile(f'(({re.escape(prefix)})(?P<flag>{joined}){re.escape(delimiter)})', regex_flags)

discord/ext/tasks/__init__.py

@@ -491,7 +491,7 @@ class Loop(Generic[LF]):
 
             This operation obviously cannot be undone!
         """
-        self._valid_exception = tuple()
+        self._valid_exception = ()
 
     def remove_exception_type(self, *exceptions: Type[BaseException]) -> bool:
         r"""Removes exception types from being handled during the reconnect logic.

discord/message.py

@@ -1665,7 +1665,7 @@ class Message(PartialMessage, Hashable):
                 return '@deleted-role'
 
             def resolve_channel(id: int) -> str:
-                return f'#deleted-channel'
+                return '#deleted-channel'
 
         transforms = {
             '@': resolve_member,