lint: address PERF101

cylc/flow/network/multi.py

@@ -235,7 +235,7 @@ def _report(
     """
     try:
         ret: List[Tuple[Optional[str], Optional[str], bool]] = []
-        for _mutation_name, mutation_response in response.items():
+        for mutation_response in response.values():
             # extract the result of each mutation result in the response
             success, msg = mutation_response['result'][0]['response']
             out = None

cylc/flow/scheduler.py

@@ -917,7 +917,7 @@ def process_queued_task_messages(self) -> None:
         # Remaining unprocessed messages have no corresponding task proxy.
         # For example, if I manually set a running task to succeeded, the
         # proxy can be removed, but the orphaned job still sends messages.
-        for _id, tms in messages.items():
+        for tms in messages.values():
             warn = "Undeliverable task messages received and ignored:"
             for _, msg in tms:
                 warn += f'\n  {msg.job_id}: {msg.severity} - "{msg.message}"'

cylc/flow/task_pool.py

@@ -870,8 +870,8 @@ def get_tasks(self) -> List[TaskProxy]:
         if self.active_tasks_changed:
             self.active_tasks_changed = False
             self._active_tasks_list = []
-            for _, itask_id_map in self.active_tasks.items():
-                for __, itask in itask_id_map.items():
+            for itask_id_map in self.active_tasks.values():
+                for itask in itask_id_map.values():
                     self._active_tasks_list.append(itask)
         return self._active_tasks_list