Make some ruff fixes (#8154)

* Make some ruff fixes

* Undo manual fix

* Undo manual fix

* Updates from ruff=0.0.251

strings/autocomplete_using_trie.py

@@ -27,10 +27,7 @@ class Trie:
     def _elements(self, d: dict) -> tuple:
         result = []
         for c, v in d.items():
-            if c == END:
-                sub_result = [" "]
-            else:
-                sub_result = [c + s for s in self._elements(v)]
+            sub_result = [" "] if c == END else [(c + s) for s in self._elements(v)]
             result.extend(sub_result)
         return tuple(result)